AIR CONDITIONER OUTDOOR UNIT AND AIR CONDITIONER

Abstract

An air conditioner outdoor unit includes a cabinet including an air outlet, an electric control box with at least part thereof arranged inside the cabinet, a fan arranged inside the cabinet and located at the air outlet, and a heat dissipation device arranged inside the cabinet. In an axis direction of the fan, the heat dissipation device is located on one side of the fan. In the axis direction of the fan, a projection of the heat dissipation device toward the fan is at least partially located within a circumferential edge of the fan.

Description

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority to Chinese Application No. 202311245923.9, filed on Sep. 25, 2023, the entire content of which is incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to the technical field of air conditioning, and specifically relates to an air conditioner outdoor unit and an air conditioner.

BACKGROUND

This section only provides background information related to the present disclosure, which is not necessarily the prior art.

In an air conditioner outdoor unit, an electric control box is usually placed inside a cabinet of the air conditioner outdoor unit. After the air conditioner outdoor unit has run for a long time, a large amount of heat will accumulate at the electric control box. Therefore, it is needed to dissipate the heat accumulated at the electric control box. In particular, when the air conditioner outdoor unit is running, if the electric control box is in a high temperature state for a long time, it will affect the operation of power elements on the electric control box.

SUMMARY

An object of the present disclosure is to at least solve the technical problem of dissipating heat from the electric control box of the air conditioner outdoor unit, and this object is achieved through the following technical solutions.

The present disclosure provides an air conditioner outdoor unit, which includes: a cabinet, which is provided with an air outlet;

an electric control box, at least part of which is arranged inside the cabinet;

a fan, which is arranged inside the cabinet and located at the air outlet; and

a heat dissipation device, which is arranged inside the cabinet for dissipating heat from the electric control box; in which in an axis direction of the fan, the heat dissipation device is located on one side of the fan, and in the axis direction of the fan, the projection of the heat dissipation device toward the fan is at least partially located within a circumferential edge of the fan.

In the air conditioner outdoor unit provided by the present disclosure, by providing the fan and the heat dissipation device inside the cabinet, heat can be dissipated from the electric control box by the heat dissipation device. An airflow generated during the rotation of the fan at least passes through a part of the region of the heat dissipation device. The heat dissipation device is arranged at a flow path of the airflow to take away the heat from the heat dissipation device. Specifically, the projection of the heat dissipation device toward the fan is at least partially located within the circumferential edge of the fan, so that the heat dissipation device is at least partially located on the flow path of the airflow generated by the fan. Therefore, under the action of the airflow generated by the rotation of the fan, the heat dissipation device can well dissipate heat from the electric control box, thereby lowering the working temperature of the electric control box.

In addition, the air conditioner outdoor unit according to the present disclosure may also have the following additional technical features.

In some embodiments of the present disclosure, on a projection plane perpendicular to the axis direction, the heat dissipation device has a first projection, and a rotation plane of the fan has a second projection; the first projection intersects with the second projection; in a radial direction of the fan, the longest distance of the first projection within a circumferential edge of the second projection is L, the diameter of the fan is D, and L is 5% to 40% of D.

In some embodiments of the present disclosure, on a plane perpendicular to the axis direction, the shortest distance between the first projection and the axis of the fan is L1, and the longest distance between the first projection and the axis of the fan is L2; with a point on the axis of the fan as the center, a first circular region is formed with L1 as the radius, and a second circular region is formed with L2 as the radius; the area difference between the first circular region and the second circular region is S2; the fan rotates around its axis to form a third circular region S1, where 0.005<S2/S1<0.5.

In some embodiments of the present disclosure, the shortest distance between the top of the heat dissipation device and the fan in the axis direction of the fan is L3, where L3>D*5%.

In some embodiments of the present disclosure, the fan includes an axial flow fan, an air outflow side of the axial flow fan faces the air outlet, and an air inflow side of the axial flow fan faces the heat dissipation device.

In some embodiments of the present disclosure, the air conditioner outdoor unit further includes a heat exchanger, which is arranged inside the cabinet and located on a side of the fan that is away from the air outlet.

In some embodiments of the present disclosure, the heat exchanger extends in a circumferential direction of a side wall of the cabinet and encloses a heat exchange channel, which is communicated with the air outlet.

In some embodiments of the present disclosure, the air outlet is arranged at the top of the cabinet, and the air conditioner outdoor unit further has an air inlet, which is arranged at the side wall of the cabinet; an airflow channel is formed between the air outlet and the air inlet, and the airflow channel is communicated with the heat exchange channel.

In some embodiments of the present disclosure, the heat dissipation device is located on a side of the fan that is away from the air outlet, and near the part of the electric control box that is located inside the cabinet.

In some embodiments of the present disclosure, the electric control box is connected to the heat dissipation device.

In some embodiments of the present disclosure, the air conditioner outdoor unit further includes a compressor assembly, which is connected to the heat exchanger and arranged inside the heat exchange channel.

A second aspect of the present disclosure provides an air conditioner, which includes the air conditioner outdoor unit as described in any one of the above items.

BRIEF DESCRIPTION OF THE DRAWINGS

Upon reading the detailed description of embodiments below, various other advantages and benefits will become clear to those skilled in the art. The accompanying drawings are only used for the purpose of illustrating some embodiments, and should not be considered as a limitation to the present disclosure. Moreover, throughout the drawings, the same reference signs are used to denote the same components. In the drawings:

FIG. 1 is a schematic structural view of the air conditioner outdoor unit according to an embodiment of the present disclosure;

FIG. 2 is a top view of the air conditioner outdoor unit according to an embodiment of the present disclosure on the side of air outlet, showing the projection of a heat dissipation device on a fan;

FIG. 3 is a schematic structural view of the air conditioner outdoor unit according to an embodiment of the present disclosure, showing the positional relationship between the heat dissipation device and the fan in height;

FIG. 4 is a schematic structural view of the air conditioner outdoor unit according to an embodiment of the present disclosure, showing a heat exchanger and a heat exchange air duct;

FIG. 5 is a schematic structural view of the air conditioner outdoor unit according to an embodiment of the present disclosure, showing an electric control box connected to a heat dissipation device; and

FIG. 6 is a schematic structural view of the air conditioner outdoor unit according to an embodiment of the present disclosure.

LIST OF REFERENCE SIGNS

100: air conditioner outdoor unit;

110: cabinet; 111: air outlet; 112: air inlet; 113: airflow channel;

120: axial flow fan; 121: axis;

130: heat dissipation device; 131: projection;

140: heat exchanger; 141: heat exchange channel;

150: electric control box;

160: compressor assembly;

C1: first circular region; C2: second circular region.

DETAILED DESCRIPTION

Hereinafter, exemplary embodiments of the present disclosure will be described in greater detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

It should be understood that the terms used herein are only for the purpose of describing specific exemplary embodiments, and are not intended to be limitative. Unless clearly indicated otherwise in the context, singular forms “a,” “an,” and “said” as used herein may also mean that plural forms are included. Terms “include,” “comprise,” “contain” and “have” are inclusive, and therefore indicate the existence of the stated features, steps, operations, elements and/or components, but do not exclude the existence or addition of one or more other features, steps, operations, elements, components, and/or combinations thereof. The method steps, processes, and operations described herein should not be interpreted as requiring them to be executed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

Although terms “first,” “second,” “third” and the like may be used herein to describe multiple elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may only be used to distinguish one element, component, region, layer or section from another region, layer or section. Unless clearly indicated in the context, terms such as “first,” “second” and other numerical terms do not imply an order or sequence when they are used herein. Therefore, the first element, component, region, layer or section discussed below may be referred to as a second element, component, region, layer or section without departing from the teachings of the exemplary embodiments.

For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the drawings. These relative terms are, for example, “inner,” “outer,” “inside,” “outside,” “below,” “under,” “above,” “over,” etc. These spatial relative terms are intended to include different orientations of the device in use or in operation in addition to the orientation depicted in the drawings. For example, if the device in the figure is turned over, then elements described as “below other elements or features” or “under other elements or features” will be oriented “above the other elements or features” or “over the other elements or features.” Thus, the exemplary term “below” may include orientations of both above and below. The device can be otherwise oriented (rotated by 90 degrees or in other directions), and the spatial relationship descriptors used herein will be explained accordingly.

Referring to FIGS. 1 to 6, the air conditioner outdoor unit 100 in this embodiment includes a cabinet 110. The cabinet 110 has an air outlet 111 and an air inlet 112, and a fan is arranged inside the cabinet 110. The fan is arranged at the air outlet 111, and under the action of the fan, an airflow channel is formed between the air inlet 112 and the air outlet 111 of the cabinet 110. The formed airflow can take away the air inside the cabinet 110, and at the same time, draw the air outside the cabinet 110 into the cabinet 110, so that the air inside the cabinet 110 and the air outside the cabinet 110 can circulate.

The air conditioner outdoor unit 100 of this embodiment further includes a heat dissipation device 130 therein, which is arranged inside the cabinet 110. The heat dissipation device 130 is configured to dissipate heat from the electric control box 150, and is connected to the electric control box 150. Electric control elements that control the operation of the air conditioner outdoor unit 100 are arranged inside the electric control box 150. The heat generated during the operation of the electric control elements is conducted to the electric control box 150 and the heat dissipation device 130. When the airflow inside the cabinet 110 passes through the heat dissipation device, the heat conducted from the electric control elements to the heat dissipation device is carried to the outside of the cabinet 110 through the airflow formed inside the cabinet 110. Therefore, the heat conducted from the electric control elements in the electric control box to the heat dissipation device will not accumulate inside the cabinet. Therefore, the air conditioner outdoor unit of this embodiment can timely take away the heat conducted to the heat dissipation device, so that the electric control box and the electric control elements inside the electric control box are maintained within the temperature range of normal operation, and the heat on the heat dissipation device can be timely released to the outside of the cabinet, avoiding heat accumulation inside the cabinet.

In the air conditioner outdoor unit of this embodiment, the heat dissipation device is connected to the electric control box, so that the heat generated by the electric control elements in the electric control box can be conducted to the heat dissipation device, and the heat on the heat dissipation device can be taken away by the airflow generated by the rotation of the fan. The heat dissipation device can be configured as a device with multiple heat dissipation fins.

The heat dissipation device can also be configured into the form of an air guide plate structure. The heat dissipation device is located on one side of the fan in the axis direction of the fan, and the projection of the heat dissipation device toward the fan is at least partially located within a circumferential edge of the fan. That is, the airflow generated by the rotation of the fan passes through a part of the region of the heat dissipation device. Therefore, the air guide plate structure can guide some of the airflow generated by the fan toward the electric control box, and through the airflow blowing on the electric control box, the heat conducted to the electric control box from the electric control elements is taken away.

The heat dissipation device can also be configured as a rotatable blower structure. The airflow generated by the rotation of the fan drives the blower in the heat dissipation device to rotate, so that the airflow generated by the rotation of the blower can be blown toward the electric control box to dissipate heat from the electric control box and the electric control elements inside the electric control box. The projection of the rotatable blower structure toward the fan is at least partially located within the circumferential edge of the fan for facilitating the airflow to pass through the rotatable blower structure, thus driving the blower in the heat dissipation device to rotate.

Therefore, the heat dissipation device provided by the present disclosure can dissipate heat from the electric control box. It can be mechanically connected to the electric control box so that the heat of the electric control box and the electric control elements inside the electric control box is conducted to the heat dissipation device, and an airflow can also be formed between the heat dissipation device and the electric control box, so as to dissipate heat by blowing air on the electric control box. The heat dissipation device in the air conditioner outdoor unit of the present disclosure is located on one side of the fan in the axis direction of the fan, so that the airflow generated by the rotation of the fan can act on the heat dissipation device. When the projection of the heat dissipation device toward the fan in the axial direction of the fan is at least partially located within the circumferential edge of the fan, a part of the region of the heat dissipation device is located on the flow path of the airflow generated by the rotation of the fan, and the airflow can directly act on the heat dissipation device. Therefore, the heat dissipation device in the air conditioner outdoor unit of the present disclosure can well dissipate heat from the electric control box, ensuring that the electric control elements inside the electric control box are always within the normal operating temperature range.

In the air conditioner outdoor unit of the present disclosure, in order to achieve more efficient heat dissipation of the electric control elements by the airflow inside the cabinet 110, the positions of the fan and the heat dissipation device 130 are defined in the air conditioner outdoor unit 100 of the present disclosure.

In an embodiment of the present disclosure, the heat dissipation device 130 is arranged at the side of the fan that is away from the air outlet 111 of the cabinet 110; in the direction of the axis 121 of the fan, the heat dissipation device 130 has a projection 131 on the fan. The electric control box and the heat dissipation device can also be arranged at the same side of the fan, and the heat dissipation device can dissipate heat from a part of the region of the electric control box arranged inside the cabinet. In the air conditioner outdoor unit 100 of this embodiment, in the direction of the axis 121 of the fan, a part of the region of the heat dissipation device 130 that generates the projection 131 is located on the airflow channel. The airflow formed inside the cabinet can directly dissipate heat from the heat dissipation device 130, so that most of the heat of the heat dissipation device 130 can be taken away, and the heat accumulated by the electric control elements inside the electric control box 150 connected to the heat dissipation device 130 can be taken away in a timely manner to prevent the electric control elements from being in a high-temperature environment for a long time and affecting the normal operation of the air conditioner outdoor unit 100.

In the air conditioner outdoor unit 100 provided by the present disclosure, after the fan is started, during the operation of the air conditioner outdoor unit 100, the fan can always dissipate heat from the heat dissipation device 130 connected to the electric control box 150, improving the heat dissipation efficiency of the electric control elements inside the electric control box 150 of the air conditioner outdoor unit 100. In the air conditioner outdoor unit 100 of this embodiment, at least a part of the region of the heat dissipation device 130 is located on the flow path of the airflow generated by the rotation of the fan, so that the heat conducted to the heat dissipation device 130 can be taken away in a timely manner.

In the air conditioner outdoor unit 100 of the present disclosure, the air inlet 112 can be arranged at the side wall of the cabinet 110, and the air outlet 111 can be arranged at the top of the cabinet 110. In particular, when multiple side walls of the cabinet 110 are each provided with the air inlets 112, air can be introduced into the cabinet 110 from multiple regions of the circumferential side walls of the cabinet 110. The airflow channel inside the cabinet 110 has a large ventilation area, and a part of region of the heat dissipation device 130 connected to the electric control box 150 is arranged in the airflow channel, so that the heat of the electric control elements inside the electric control box 150 can be efficiently dissipated. The air conditioner outdoor unit in this embodiment adopts a top air supply structure. When the fan is provided at the position of the air outlet, it is advantageous for forming a large airflow inside the cabinet.

The efficiency of dissipating heat of the electric control box by the heat dissipation device can be adjusted by adjusting the relative position between the heat dissipation device 130 connected to the electric control box 150 and the fan. For example, the heat dissipation device can be arranged at positions having different distances from the axis of the fan, that is, the heat dissipation device can be arranged in the radial direction of the fan. The projection of the heat dissipation device toward the fan in the axis direction of the fan is at least partially located within the circumferential edge of the fan. The heat dissipation efficiency of the electric control box is determined based on the flow velocity of the airflow around the heat dissipation device. In this embodiment, the flow velocity of the airflow in the radial direction of the fan changes after the fan rotates.

The size of the radial diameter of the fan or the external structural form of the heat dissipation device can also be set so that in the rotational axial direction of the fan, the projection of the heat dissipation device 130 toward the fan has different projection areas. Therefore, the efficiency of dissipating heat of the electric control box by the heat dissipation device can be adjusted according to the different projection areas. The projection area can extend in the radial direction of the fan or in the circumferential direction of the fan. The size of the projection area directly affects the heat dissipation efficiency of the heat dissipation device, and also affects the heat dissipation effect on the electric control box 150 and the electric control elements inside the electric control box.

In the specific process of arranging the outdoor unit, those skilled in the art can adjust the positional relationship between the heat dissipation device 130 and the fan according to the power of the air conditioner outdoor unit 100 and the volume of the cabinet 110, forming an air conditioner outdoor unit having different heat dissipation efficiencies for the electric control box and the electric control elements inside the electric control box.

In an embodiment of the present disclosure, as shown in FIG. 2, on a projection plane perpendicular to the axis 121 of the fan, the heat dissipation device has a first projection and a rotation plane of the fan has a second projection. The first projection and the second projection overlap at least in partial region. In the radial direction of the fan, the longest distance of the first projection within the circumferential edge of the second projection is L, and the radial diameter of the fan is D. The longest distance L can be set to any value between 5% and 40% of the radial diameter D of the fan. In this embodiment, the overlapping region of the first projection and the second projection is located near the circumferential edge of the second projection. By setting the projection relationship between the heat dissipation device and the fan, the effective heat dissipation area of the airflow formed by the rotation of the fan on the heat dissipation device is determined. The above proportion range given in this embodiment is determined based on the heat exchanger assembly and compressor assembly inside the cabinet of the air conditioner outdoor unit, as well as the limited volume of the cabinet. Within this proportion range, the heat transfer efficiency of the air conditioner outdoor unit is greatly improved while ensuring effective heat dissipation of the electric control box.

As shown in FIG. 1, the heat dissipation device 130 can be arranged inside the cabinet 110 in the height direction. In the cabinet, the height direction of the heat dissipation device is roughly the same as the flow direction of the airflow, so that the heat dissipation device occupies a longer heat dissipation path on the flow path of the airflow formed between the air inlet and the air outlet of the cabinet 110, effectively improving the heat dissipation efficiency.

It should be noted that in the air conditioner outdoor unit 100 of the present disclosure, when the heat dissipation device is connected to the electric control box, the heat dissipation device 130 can be integrated with the electric control box 150. The heat dissipation device 130 is located inside the cabinet 110, a part of the electric control box 150 is located outside the cabinet 110 for connecting with power lines or setting control elements, and a part of the electric control box 150 is located inside the cabinet 110 for dissipating heat in the airflow channel.

The heat dissipation device 130 connected to the electric control box 150 can also be completely located on the flow path of the airflow inside the cabinet 110, or in the airflow channel. This arrangement can be made according to the structural characteristics of the heat dissipation device 130, such as the structure of the heat dissipation channel of the heat dissipation device 130, or the effective heat dissipation area of the heat dissipation device for conducting heat. The heat dissipation effect can also be improved by increasing the length occupied by the heat dissipation device on the flow path of the airflow inside the cabinet 110.

In the above embodiment of the present disclosure, the efficiency of dissipating heat of the electric control box 150 by the air conditioner outdoor unit 100 is set based on the projection area of the heat dissipation device 130 on the fan. Especially, when the heat dissipation device 130 is arranged in the height direction along the side wall of the cabinet 110, an accommodation space inside the cabinet 110 can be increased, allowing the air conditioner outdoor unit 100 to arrange more components inside the cabinet 110, such as the heat exchanger 140 assembly, or a compressor, a liquid storage tank, an electric expansion valve, a pipeline, a fixing device, etc.

In an embodiment of the present disclosure, the heat dissipation device has a first projection on the projection plane perpendicular to the axis direction of the fan. The shortest distance between the first projection and the axis of the fan is L1, and the longest distance between the first projection and the axis of the fan is L2. With a point on the axis of the fan as the center, a first circular region is formed with L1 as the radius, and a second circular region is formed with L2 as the radius. The area difference between the first circular region and the second circular region is S2; the fan rotates around its axis to form a third circular region, an area of which is S1, where 0.005<S2/S1<0.5. In this embodiment, according to a ratio of the area of the region formed by the rotation of the fan around the axis 121 and the area of the projection 131 of the heat dissipation device 130 on this region, the heat dissipation area of the heat dissipation device 130 achieved by the airflow formed by the rotation of the fan is set. As shown in FIG. 2, the area of the region formed by the fan around its axis 121 is S1, which area is the area S1 of the third circular region. The area of the region formed by the rotation of the projection 131 of the heat dissipation device 130 on the fan around the axis 121 of the fan is S2. The area of the region S2 is explained as follows: in the plane perpendicular to the axis 121 of the fan, the shortest distance between the projection 131 of the heat dissipation device 130 on the fan in the direction of the axis 121 and the axis 121 is L1, and the longest distance between the above projection 131 and the axis 121 of the fan is L2; with a point on the axis 121 as the center, the first circular region C1 is formed with L1 as the radius, the second circular region C2 is formed with L2 as the radius, and the area difference between the first circular region C1 and the second circular region C2 is S2.

In this embodiment, considering that the airflow acting on the heat dissipation device is formed by the rotation of the fan in the circumferential direction, the airflow generated by the annular area in the circumferential direction is an important indicator affecting the heat dissipation of the electric control box achieved by the heat dissipation device. Therefore, the projection of the heat dissipation device toward the fan in the axial direction of the fan forms an annular area by rotating around the axis of the fan, and the airflow formed by the fan in the above annular area directly acts on the heat dissipation device. Therefore, the above proportion regions given in this embodiment also enable a good heat dissipation environment to be formed for the electric control box under the condition of high heat transfer efficiency of the air conditioner outdoor unit.

In order to improve the heat dissipation efficiency of the electric control box 150, a partial region of the heat dissipation device 130 can extend in the rotational direction of the fan, thereby appropriately increasing the heat dissipation area and increasing the area of the projection 131 of the heat dissipation device 130 on the fan. The advantage of this arrangement is that the heat dissipation device 130 can be arranged along the side wall of the cabinet 110 without occupying the effective accommodation space inside the cabinet 110, that is, the heat dissipation region of the heat dissipation device 130 is not increased in the direction perpendicular to the axis 121 of the fan, and the heat dissipation region of the heat dissipation device 130 is appropriately increased in the rotational direction of the fan.

In an embodiment of the present disclosure, as shown in FIG. 3, the heat dissipation device 130 is arranged inside the cabinet 110, and the shortest distance between the top of the heat dissipation device 130 and the fan is L3. Appropriately increasing the shortest distance L3 enables the airflow formed by the rotation of the fan around the axis 121 to take away the heat conducted to the heat dissipation device 130, preventing the heat dissipation device 130 from being too close to the fan to make it impossible for the airflow between the fan and the heat dissipation device 130 to circulate. Specifically, the shortest distance L3 is larger than 5% of the radial diameter D of the fan.

In the air conditioner outdoor unit 100 of this embodiment, the heat dissipation device 130 can be arranged opposite to part of the air inlet 112 of the cabinet 110. When external air enters the cabinet 110 through the air inlet 112, it first blows toward the heat dissipation device 130, and then under the action of the fan, the airflow flows toward the air outlet 111 of the cabinet 110.

In the air conditioner outdoor unit 100 of the present disclosure, the fan inside the cabinet 110 can be configured as an axial flow fan 120, with an air outflow side of the axial flow fan 120 facing the air outlet 111 of the cabinet 110, and an air inflow side of the axial flow fan 120 being spaced apart from the heat dissipation device 130. The axial flow fan 120 is provided with at least one fan blade, which rotates around the axis 121 of the axial flow fan 120 so that the air at the air inlet 112 of the cabinet 110 circulates toward the air outlet 111 of the cabinet 110. The size and rotational speed of the axial flow fan 120 can be set according to ventilation requirements of the cabinet 110. In the air conditioner outdoor unit 100 of the present disclosure, the axial flow fan 120 is arranged to interfere with the projection 131 of the heat dissipation device 130 in the direction of the axis 121 of the fan, allowing the airflow generated by the rotation of the fan to pass through a partial region of the heat dissipation device 130, and dissipate heat from the electric control elements inside the electric control box 150 connected to the heat dissipation device 130.

In the air conditioner outdoor unit 100 of the present disclosure, the heat dissipation device 130 and the axial flow fan 120 are sequentially arranged between the air inlet 112 and the air outlet 111 of the cabinet 110. Under the action of the axial flow fan 120, the airflow formed between the air inlet 112 and the air outlet 111 of the cabinet 110 can pass through a partial region of the heat dissipation device 130.

In an embodiment of the present disclosure, the air conditioner outdoor unit 100 further includes a heat exchanger 140, which is arranged inside the cabinet 110. The heat exchanger 140 is located near the air inlet 112 of the cabinet 110 and is arranged at a side of the fan that is away from the air outlet 111 of the cabinet 110. Therefore, the air outside the cabinet 110 can exchange heat with the heat exchanger 140 after passing through the air inlet 112. The refrigerant medium inside the heat exchanger 140 exchanges heat with the airflow, and under the action of the fan, the air after heat exchange with the heat exchanger 140 flows toward the air outlet 111 of the cabinet 110.

The heat exchanger 140 includes multiple refrigerant pipes therein for circulating the refrigerant medium. The wall surface of the heat exchanger 140 formed by the multiple refrigerant pipes can be arranged along the side wall of the cabinet 110, and can also be arranged opposite to the air inlet 112 on the side wall of the cabinet 110.

The cabinet 110 of the air conditioner outdoor unit 100 is at least further provided with a compressor assembly 160 and an expansion valve. A circulation circuit of the refrigerant medium is formed between the heat exchanger 140, the compressor assembly 160 and the expansion valve. The airflow formed between the air inlet 112 and the air outlet 111 of the cabinet 110 exchanges heat with the heat exchanger 140, so that the air conditioner outdoor unit 100 achieves the purpose of cooling or heating.

It should be noted that when the air conditioner outdoor unit 100 of the present disclosure is applied to an air conditioner or an air conditioning system, it is communicated with an indoor unit of the air conditioner or the air conditioning system. The refrigerant medium forms a circuit in the heat exchangers 140 in the air conditioner outdoor unit 100 and the indoor unit. Specifically, a condenser can be arranged in the air conditioner outdoor unit 100, and an evaporator can be arranged in the indoor unit of the air conditioner. The refrigerant medium forms a circulation circuit in the condenser and the evaporator. An expansion valve, a switching valve, a gas-liquid separator and the like can also be arranged in the circulation circuit. In the air conditioner outdoor unit 100, the refrigerant medium in the heat exchanger 140 completes heat exchange in the airflow circulation path between the air inlet 112 and the air outlet 111 of the cabinet 110.

With reference to FIGS. 4 and 5, in order to increase the heat exchange area, heat exchangers 140 can be arranged at multiple side walls of the cabinet 110, and the multiple heat exchangers 140 are communicated with each other. Air inlets 112 can be arranged at the multiple side walls of the cabinet 110 on which the heat exchangers 140 are arranged to increase the contact area between the heat exchangers 140 and the airflow. One of the heat exchangers 140 can also be set as a G-type and arranged along the side wall inside the cabinet 110.

In an embodiment of the present disclosure, the heat exchanger 140 of the air conditioner outdoor unit 100 is arranged to extend in the circumferential direction of the side wall of the cabinet 110 and enclose a heat exchange channel 141. The heat exchange channel 141 is communicated with the air inlet 112 arranged at the side wall of the cabinet 110, and components such as the compressor and the liquid storage tank are arranged in the heat exchange channel 141 enclosed by the heat exchanger 140. The electric control box 150 and the heat dissipation device 130 connected to the electric control box 150 can be arranged in the heat exchange channel 141, or the heat dissipation device 130 can be arranged in the heat exchange channel 141, and a part of the region of the electric control box 150 is arranged outside the heat exchange channel 141 to provide a panel for setting electric control operating elements. The heat exchange channel 141 is communicated with the airflow channel 113 formed between the air inlet 112 and the air outlet 111 of the cabinet 110.

In an embodiment of the present disclosure, the heat exchanger 140 of the air conditioner outdoor unit 100 is arranged to extend in the circumferential direction of the side wall of the cabinet 110, and enclose a heat exchange channel 141 together with the electric control box 150. The compressor assembly 160, the expansion valve, the control valve and other components are arranged in the heat exchange channel 141. The heat exchange channel 141 is communicated with the airflow channel 113 formed between the air inlet 112 and the air outlet 111 of the cabinet 110.

In an embodiment of the present disclosure, the air conditioner outdoor unit further includes an electric control box, which is at least partially arranged inside the cabinet and which is connected to the heat dissipation device; the air conditioner outdoor unit is also provided with a compressor assembly, which is connected to the heat exchanger to form a refrigerant circulation channel in which the compressor assembly is arranged.

The present disclosure also provides an air conditioner; as shown in FIG. 6, the air conditioner includes the air conditioner outdoor unit 100 according to any one of the above embodiments. The air conditioner further includes a compressor and a liquid storage tank connected to the compressor. The compressor and the liquid storage tank can be arranged in the cabinet 110 of the air conditioner outdoor unit 100, and the compressor is used to compress the refrigerant medium. The compressed refrigerant medium flows in the heat exchanger 140, and under the action of the fan inside the air conditioner outdoor unit 100, the heat generated in the heat exchanger 140 is cooled by the airflow in the airflow channel 113, and is carried to the outside of the air conditioner outdoor unit 100 by the airflow.

The air conditioner of the present disclosure further includes an air conditioner indoor unit; a heat exchanger 140 or evaporator is arranged in the air conditioner indoor unit, and is communicated with the heat exchanger 140 in the air conditioner outdoor unit 100, so that the refrigerant medium in the heat exchanger 140 of the air conditioner outdoor unit 100 can be circulated to the heat exchanger 140 or evaporator of the air conditioner indoor unit and exchange heat with the indoor air to maintain the indoor temperature within a reasonable range. In a cooling mode, the heat exchanger 140 in the air conditioner outdoor unit 100 is used as a heat exchanger for heat dissipation, and the heat exchanger in the air conditioner indoor unit is used as a heat exchanger for heat absorption; and in a heating mode, the heat exchanger 140 in the air conditioner indoor unit is used as a heat exchanger for heat dissipation, and the heat exchanger 140 in the air conditioner outdoor unit 100 is used as a heat exchanger for heat absorption.

According to the air conditioner provided by the present disclosure and the air conditioner outdoor unit 100 in the air conditioner, heat can be dissipated from the heat dissipation device 130 connected to the electric control box 150 during the cooling or heating process due to the rotation of the fan, thereby ensuring that the electric control elements inside the electric control box 150 are within a reasonable temperature range and will not affect the normal operation of the air conditioner due to an overly high temperature.

Described above are only some specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited to this. Any changes or replacements that can be easily conceived by those skilled in the art within the technical scope disclosed by the present disclosure should be covered within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be accorded with the scope of protection of the claims.

Claims

1. An air conditioner outdoor unit comprising:

a cabinet including an air outlet;

an electric control box, at least part of the electric control box being arranged inside the cabinet;

a fan, arranged inside the cabinet and located at the air outlet; and

a heat dissipation device, arranged inside the cabinet;

wherein: in an axis direction of the fan, the heat dissipation device is located on one side of the fan; and in the axis direction of the fan, a projection of the heat dissipation device toward the fan is at least partially located within a circumferential edge of the fan.

2. The air conditioner outdoor unit according to claim 1, wherein:

a first projection of the heat dissipation device on a projection plane perpendicular to the axis direction intersects a second projection of a rotation plane of the fan on the projection plane; and

in a radial direction of the fan, a longest distance of the first projection within a circumferential edge of the second projection is 5% to 40% of a diameter of the fan.

3. The air conditioner outdoor unit according to claim 2, wherein a shortest distance between a top of the heat dissipation device and the fan in the axis direction of the fan is larger than 5% of the diameter of the fan.

4. The air conditioner outdoor unit according to claim 1, wherein:

a ratio of an area difference between a first circular region and a second circular region to an area of a third circular region is larger than 0.005 and smaller than 0.5;

the first circular region is centered at a point on an axis of the fan and has a first radius equaling a shortest distance between: a projection of the heat dissipation device on a plane perpendicular to the axis direction, and the axis of the fan;

the second circular region is centered at the point on the axis of the fan and has a second radius equaling a longest distance between the projection and the axis of the fan; and

the third circular region is formed by the fan rotating around the axis.

5. The air conditioner outdoor unit according to claim 1, wherein the fan includes an axial flow fan, an air outflow side of the axial flow fan faces the air outlet, and an air inflow side of the axial flow fan faces the heat dissipation device.

6. The air conditioner outdoor unit according to claim 1, further comprising:

a heat exchanger, arranged inside the cabinet and located on a side of the fan that is away from the air outlet.

7. The air conditioner outdoor unit according to claim 6, wherein the heat exchanger extends in a circumferential direction of a side wall of the cabinet and encloses a heat exchange channel, and the heat exchange channel is communicated with the air outlet.

8. The air conditioner outdoor unit according to claim 7, further comprising:

an air inlet arranged at the side wall of the cabinet;

wherein: the air outlet is arranged at a top of the cabinet; and an airflow channel is formed between the air outlet and the air inlet, and the airflow channel is communicated with the heat exchange channel.

9. Air conditioner outdoor unit according to claim 6, wherein the heat dissipation device is located on a side of the fan that is away from the air outlet, and near a part of the electric control box that is located inside the cabinet.

10. The air conditioner outdoor unit according to claim 9, wherein the electric control box is connected to the heat dissipation device.

11. The air conditioner outdoor unit according to claim 6, further comprising:

a compressor assembly, connected to the heat exchanger and arranged inside the heat exchange channel.

12. An air conditioner comprising:

an air conditioner outdoor unit including: a cabinet including an air outlet; an electric control box, at least part of the electric control box being arranged inside the cabinet; a fan, arranged inside the cabinet and located at the air outlet; and a heat dissipation device, arranged inside the cabinet; wherein: in an axis direction of the fan, the heat dissipation device is located on one side of the fan; and in the axis direction of the fan, a projection of the heat dissipation device toward the fan is at least partially located within a circumferential edge of the fan.

13. The air conditioner according to claim 12, wherein:

a first projection of the heat dissipation device on a projection plane perpendicular to the axis direction intersects a second projection of a rotation plane of the fan on the projection plane; and

in a radial direction of the fan, a longest distance of the first projection within a circumferential edge of the second projection is 5% to 40% of a diameter of the fan.

14. The air conditioner according to claim 11, wherein a shortest distance between a top of the heat dissipation device and the fan in the axis direction of the fan is larger than 5% of the diameter of the fan.

15. The air conditioner according to claim 12, wherein:

a ratio of an area difference between a first circular region and a second circular region to an area of a third circular region is larger than 0.005 and smaller than 0.5;

the first circular region is centered at a point on an axis of the fan and has a first radius equaling a shortest distance between: a projection of the heat dissipation device on a plane perpendicular to the axis direction, and the axis of the fan;

the second circular region is centered at the point on the axis of the fan and has a second radius equaling a longest distance between the projection and the axis of the fan; and

the third circular region is formed by the fan rotating around the axis.

16. The air conditioner according to claim 12, wherein the fan includes an axial flow fan, an air outflow side of the axial flow fan faces the air outlet, and an air inflow side of the axial flow fan faces the heat dissipation device.

17. The air conditioner according to claim 12, wherein the air conditioner outdoor unit further includes:

a heat exchanger, arranged inside the cabinet and located on a side of the fan that is away from the air outlet.

18. The air conditioner according to claim 17, wherein the heat exchanger extends in a circumferential direction of a side wall of the cabinet and encloses a heat exchange channel, and the heat exchange channel is communicated with the air outlet.

19. The air conditioner according to claim 18, wherein:

the air conditioner outdoor unit further includes an air inlet arranged at the side wall of the cabinet;

the air outlet is arranged at a top of the cabinet; and

an airflow channel is formed between the air outlet and the air inlet, and the airflow channel is communicated with the heat exchange channel.

20. The air conditioner according to claim 17, wherein the heat dissipation device is located on a side of the fan that is away from the air outlet, and near a part of the electric control box that is located inside the cabinet.