FRESH AIR ASSEMBLY AND AIR CONDITIONER

Abstract

The present invention discloses a fresh air assembly and an air conditioner. Fresh air is introduced to one side of evaporators, flows into a wind chamber from the evaporators, and finally is discharged to the indoor. The fresh air undergoes dehumidification, cooling, or heating processing performed by the evaporators, and therefore functions of the evaporators are fully utilized. A dehumidifier module is removed, which reduces noise, decreases overall energy consumption and costs, and makes cleaning and maintenance more convenient.

Description

TECHNICAL FIELD

The present invention relates to the field of air conditioner technologies, and in particular, to a fresh air assembly and an air conditioner.

BACKGROUND

A packaged terminal air conditioner (PTAC) window unit is a type of air conditioner mainly used for indoor refrigeration or heating in North America. Due to the characteristics of houses and climate factors in North America, this type of air conditioner is usually installed in wall holes of houses to realize indoor and outdoor air flow regulation. At present, a dehumidifier module is usually used to transmit fresh air to the indoor side of the PTAC window unit, so that a cross-flow impeller inputs the fresh air to the indoor. The dehumidifier module often produces high noise and vibration when it transmits fresh air. Because the PTAC window unit is installed in the wall hole, it causes severe noise interference to the indoor and affects the normal life of the residents. Moreover, the dehumidifier module consumes high energy, which increases the overall cost. In addition, the dehumidifier module needs to be removed for cleaning, and the operations are very inconvenient.

Technical Problems

An objective of the present invention is to provide a fresh air assembly and an air conditioner that feature low noise, low energy consumption, low costs, and easy cleaning.

Technical Solutions

A main objective of the present invention is to provide a fresh air assembly and an air conditioner that feature low noise, low energy consumption, low costs, and easy cleaning.

To achieve the above objective, the present invention uses the following technical solutions: A fresh air assembly includes a housing, a cross-flow impeller, evaporators, and an air deflector. The cross-flow impeller, the evaporators, and the air deflector are all disposed inside the housing. The evaporators are disposed on one side of the cross-flow impeller in a direction around the cross-flow impeller. Both ends of the air deflector are connected to the housing to form a first cavity. One end of the evaporators is connected to the housing and the other end thereof is connected to the air deflector to form a second cavity, the second cavity communicates with the first cavity, the evaporators are enclosed with the air deflector to form a wind chamber, and the cross-flow impeller is disposed inside the wind chamber. The air deflector is provided with air-guiding holes, and the first cavity communicates with the second cavity through the air-guiding holes. The housing is provided with an air outlet and an air inlet, the air outlet communicates with the wind chamber, and the air inlet communicates with the first cavity.

Further, there are at least two evaporators, and the evaporators are connected in sequence.

Further, the evaporators are arc-shaped or semicircular, and the arc-shaped or semicircular evaporators are disposed on one side of the cross-flow impeller.

Further, there are at least two air-guiding holes, and the air-guiding holes are spaced on the air deflector.

Further, the housing includes a bottom plate, a top plate, an outer side plate, and an intermediate separator plate. One end of the outer side plate and one end of the intermediate separator plate are respectively connected to opposite ends of the bottom plate. The top plate is disposed at the other end of the intermediate separator plate, and is spaced from the other end of the outer side plate to form the air outlet.

Further, the bottom plate further includes two end plates. The two end plates are respectively connected to the two ends of the outer side plate, the two ends of the intermediate separator plate, the two ends of the bottom plate, and two ends of the top plate to form an internal space accommodating the air deflector, the evaporators, and the cross-flow impeller.

Further, the air deflector includes an arc segment and a bending segment. The arc segment is disposed on an outer side of the cross-flow impeller in the direction around the cross-flow impeller, and one end of the arc segment is connected to the top plate and the other end thereof is connected to the bending segment. The bending segment is fixedly connected to the bottom plate.

Further, the bending segment includes a connecting portion, an inclined portion, a vertical portion, and a flat portion. One end of the connecting portion is connected to the arc segment, and the other end thereof is connected to the inclined portion. One end of the vertical portion is connected to the inclined portion, the other end thereof is connected to the flat portion, and an included angle between the inclined portion and the vertical portion is an obtuse angle. The flat portion is fixedly connected to the bottom plate.

Further, a baffle plate is provided between the bending segment and the intermediate separator plate. The baffle plate divides the first cavity into an upper cavity and a lower cavity. The lower cavity communicates with the air inlet and the second cavity.

Further, the air inlet is provided with a damper on a side facing away from the first cavity.

Further, an opening apparatus is included. The damper is rotatably disposed on one side of the air inlet through a rotating shaft. The opening apparatus is capable of driving the damper to rotate, so that the damper covers the air inlet up or moves away from the air inlet.

Further, the opening apparatus includes a manual switch and a connecting rod. One end of the connecting rod is connected to the damper and the other end thereof is connected to the manual switch. The manual switch is capable of driving the connecting rod to move, so as to control the damper to cover the air inlet up or move away from the air inlet.

Further, the manual switch is disposed on the end plate. The connecting rod is L-shaped. The damper is provided with a connecting plate. One end of the connecting rod is rotationally connected to the connecting plate. The other end thereof is fixedly connected to the manual switch by bypassing the intermediate separator plate.

Further, the intermediate separator plate is provided with a fixing plate. The fixing plate is provided with a guide block. The guide block has a guide hole. One end of the connecting rod passes through the guide hole and is rotationally connected to the connecting plate.

Further, the manual switch includes a base provided with a chute and a shifting block disposed in the chute. The shifting block is fixedly connected to the connecting rod.

The present invention further proposes an air conditioner, including the fresh air assembly according to any implementation described above.

Beneficial Effects

According to the fresh air assembly and the air conditioner of the present invention, a dehumidifier module is removed, and fresh air that is to enter an air-conditioned room is processed by using evaporators, thereby improving utilization of the evaporators. In addition, the evaporators are disposed around the cross-flow impeller, and this increases the space on the air intake side of the evaporators, ensures the intake volume and flow rate of the fresh air, and effectively ensures the volume of fresh air entering the room. Moreover, because the dehumidifier module is removed, noise is reduced, overall energy consumption and costs are decreased, and cleaning and maintenance are more convenient.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic structural diagram of a fresh air assembly according to an embodiment of the present invention;

FIG. 2 is an overall schematic structural diagram of a fresh air assembly according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a structure of part A in FIG. 2;

FIG. 4 is a schematic diagram of a fresh air flow path of a fresh air assembly according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an internal fresh air flow path of a fresh air assembly according to an embodiment of the present invention;

FIG. 6 is an overall schematic structural diagram of a fresh air assembly according to another embodiment of the present invention;

FIG. 7 is an enlarged view of a structure of part B in FIG. 6;

FIG. 8 is an enlarged view of a structure of part C in FIG. 7; and

FIG. 9 is an enlarged view of a structure of part D in FIG. 8.

DESCRIPTION OF EMBODIMENTS

It should be understood that the specific embodiments described herein are merely used to explain the present invention but are not intended to limit the present invention.

Referring to FIG. 1 and FIG. 2, a fresh air assembly according to an embodiment of the present invention includes a housing 1, a cross-flow impeller 2, evaporators 3, and an air deflector 4. The cross-flow impeller 2, the evaporators 3, and the air deflector 4 are all disposed inside the housing 1. The evaporators 3 are disposed on one side of the cross-flow impeller 2 in a direction around the cross-flow impeller 2. Both ends of the air deflector 4 are connected to the housing 1 to form a first cavity 5. One end of the evaporators 3 is connected to the housing 1 and the other end thereof is connected to the air deflector 4 to form a second cavity 6, the second cavity 6 communicates with the first cavity 5, the evaporators 3 are enclosed with the air deflector 4 to form a wind chamber 7, and the cross-flow impeller 2 is disposed inside the wind chamber 7. The housing 1 is provided with an air outlet 17 and an air inlet 16, the air outlet 17 communicates with the wind chamber 7, and the air inlet 16 communicates with the first cavity 5. In this embodiment, the second cavity 6 communicates with the wind chamber 7 through the evaporators 3, and fresh air can flow into the wind chamber 7 through the evaporators 3.

The working principle of the above-mentioned fresh air assembly is as follows: The cross-flow impeller 2 rotates to form a negative pressure between the wind chamber 7 and the second cavity 6, so that the evaporators 3 draw the air in the second cavity 6 into the wind chamber 7. Then, the air in the first cavity 5 flows into the second cavity 6 to supplement the air volume in the second cavity 6. Finally, fresh air flows into the first cavity 5 from the air inlet 16 to supplement the air volume in the first cavity 5. In this way, an air flow passage is formed. Afterwards, fresh air enters the first cavity 5 from the air inlet 16, flows into the second cavity 6 from the first cavity 5, is drawn into the wind chamber 7 by the evaporators 3, and is blown into a room from the air outlet 17 under the action of the cross-flow impeller 2. When the fresh air is drawn into the wind chamber 7 by the evaporators 3, the evaporators 3 dehumidify, cool, or heat the fresh air, and therefore functions of the evaporators 3 are fully utilized.

According to the fresh air assembly above, a dehumidifier module is removed, and fresh air that is to enter an air-conditioned room is processed by using the evaporators 3, thereby improving utilization of the evaporators 3. In addition, the evaporators 3 are disposed around the cross-flow impeller 2, and this increases the space on the air intake side of the evaporators 3, ensures the intake volume and flow rate of the fresh air, and effectively ensures the volume of fresh air entering the room. Moreover, because the dehumidifier module is removed, noise is reduced, overall energy consumption and costs are decreased, and cleaning and maintenance are more convenient.

Referring to FIG. 1 to FIG. 6, in another embodiment, there are at least two evaporators 3, and the evaporators 3 are sequentially connected and are disposed in the direction around the cross-flow impeller 2. Preferably, there are two evaporators 3, and the two evaporators 3 are connected to each other to form a V shape. Certainly, there may alternatively be three evaporators 3, and the three evaporators 3 are sequentially connected. There may alternatively be four evaporators 3, and the four evaporators 3 are sequentially connected in a C-shaped arrangement, and so on. Connecting a plurality of evaporators 3 together increases not only the area of the evaporators 3 but also the space between the evaporators 3 and the housing 1 and the fresh air volume on the side of the evaporators 3 that faces away from the cross-flow impeller 2. As such, when a negative pressure is formed on both sides of the evaporators 3 under the action of the cross-flow impeller 2, a volume of fresh air drawn into the wind chamber 7 by the evaporators 3 from the second cavity 6 increases. This ensures that a sufficient volume of fresh air flows into the room, and the air-conditioning effect in the room is maintained.

In another embodiment, the evaporators 3 are arc-shaped or semicircular, and the arc-shaped or semicircular evaporators 3 are disposed on one side of the cross-flow impeller 2 in the direction around the cross-flow impeller 2. Disposing the arc-shaped or semicircular evaporators 3 to manufacture the evaporators 3 at a time omits an assembly procedure required for using multiple evaporators 3, making the assembly more convenient.

Referring to FIG. 4, in another embodiment, the air deflector 4 is provided with air-guiding holes 4231, and the first cavity 5 communicates with the second cavity 6 through the air-guiding holes 4231. Directly disposing the air-guiding holes 4231 facilitates flowing of the fresh air from the second cavity 6 to the first cavity 5. In this embodiment, the air-guiding holes 4231 may be rectangular, circular, triangular, pentagonal, hexagonal, or the like.

In another embodiment, there are at least two air-guiding holes 4231, and the at least two air-guiding holes 4231 are spaced on the air deflector 4. Disposing a plurality of air-guiding holes 4231 can increase the volume of fresh air flowing into the second cavity 6, thereby ensuring a sufficient volume of fresh air in the second cavity 6. In this way, the evaporators 3 can continuously draw the fresh air from the second cavity 6 into the wind chamber 7 and blow the fresh air from the wind chamber 7 into the room. Moreover, the plurality of air-guiding holes 4231 are spaced on the air deflector 4, and this can ensure sufficient strength of the air deflector 4, so as to prevent the structural strength of the air deflector 4 from being reduced because only one air-guiding hole 4231 with a large diameter is disposed to ensure the fresh air volume.

Referring to FIG. 1 and FIG. 6, in another embodiment, the housing 1 includes a bottom plate 11, a top plate 12, an outer side plate 13, and an intermediate separator plate 14. One end of the outer side plate 13 and one end of the intermediate separator plate 14 are respectively connected to opposite ends of the bottom plate 11. The top plate 12 is disposed at the other end of the intermediate separator plate 14, and is spaced from the other end of the outer side plate 13 to form the air outlet 17. Preferably, the bottom plate 11 further includes two end plates 15. The two end plates 15 are respectively connected to the two ends of the outer side plate 13, the two ends of the intermediate separator plate 14, the two ends of the bottom plate 11, and two ends of the top plate 12 to form an internal space accommodating the air deflector 4, the evaporators 3, and the cross-flow impeller 2. In this embodiment, the air inlet 16 is disposed on the intermediate separator plate 14.

Referring to FIG. 1 to FIG. 6, the air deflector 4 includes an arc segment 41 and a bending segment 42. The arc segment 41 is disposed on an outer side of the cross-flow impeller 2 in the direction around the cross-flow impeller 2, and one end of the arc segment 41 is connected to the top plate 12 and the other end thereof is connected to the bending segment 42. The bending segment 42 is fixedly connected to the bottom plate 11. Preferably, the evaporators 3 are fixedly connected to the bending segment 42. In this embodiment, the arc segment 41 can play a flow guiding function, so that the fresh air is blown from the air outlet 17 into the room along the arc segment 41 under the action of the cross-flow impeller 2. The bending segment 42 is fixedly connected to the bottom plate 11 to support the arc segment.

Referring to FIG. 1 to FIG. 6, the bending segment 42 includes a connecting portion 421, an inclined portion 422, a vertical portion 423, and a flat portion 424. One end of the connecting portion 421 is connected to the arc segment 41, and the other end thereof is connected to the inclined portion 422. One end of the vertical portion 423 is connected to the inclined portion 422, the other end thereof is connected to the flat portion 424, and an included angle between the inclined portion 422 and the vertical portion 423 is an obtuse angle. The flat portion 424 is fixedly connected to the bottom plate 11. Preferably, the evaporators 3 are fixedly connected to the vertical portion 423, and the air-guiding holes 4231 are disposed on the vertical portion 423. The included angle between the inclined portion 422 and the vertical portion 423 is 120° to 160°, preferably 150°. In this embodiment, the inclined portion 422 is inclined towards a side that faces away from the evaporators 3, so that the space of the wind chamber 7 can be increased, and the space of the first cavity 5 can be reduced at the same time. This is conducive for fresh air to enter the first cavity 5 from the air inlet 16 and rapidly flow into the second cavity 6.

Referring to FIG. 1 to FIG. 6, a baffle plate 8 is provided between the bending segment 42 and the intermediate separator plate 14. The baffle plate 8 divides the first cavity 5 into an upper cavity 51 and a lower cavity 52. The lower cavity 52 communicates with the air inlet 16 and the second cavity 6. Disposing the baffle plate 8 can divide the first cavity 5 into the upper cavity 51 and the lower cavity 52. The upper cavity 51 and the lower cavity 52 are sealed relative to each other, so as to prevent fresh air from entering the upper cavity 51. After entering the lower cavity 52 from the air inlet 16, fresh air directly flows into the second cavity 6 through the air-guiding holes 4231. The fresh air flows more stably, and this prevents the fresh air from flowing between the upper cavity 51 and the lower cavity 52 and affecting the volume of fresh air flowing into the second cavity 6.

In another embodiment, the air inlet 16 is provided with a filter screen. Disposing the filter screen can prevent dust in the air from entering into the fresh air assembly, and prevent the dust from covering the evaporators 3 and the cross-flow impeller 2 and affecting the service life of the evaporators 3 and the cross-flow impeller 2.

Referring to FIG. 7, in another embodiment, the air inlet 16 is provided with a damper 9 on a side facing away from the first cavity 5. The disposed damper 9 can close the air inlet 16 when the cross-flow impeller 2 stops working. This prevents dust from entering into the first cavity 5 from the air inlet 16 and keeping the interior of the fresh air assembly clean.

Referring to FIG. 7, the fresh air assembly further includes an opening apparatus. The damper 9 is rotatably disposed on one side of the air inlet 16 through a rotating shaft. The opening apparatus is capable of driving the damper 9 to rotate, so that the damper 9 covers the air inlet 16 up or moves away from the air inlet 16. Disposing the opening apparatus facilitates opening and closing of the damper 9.

Referring to FIG. 7 to FIG. 9, the opening apparatus includes a manual switch 101 and a connecting rod 102. One end of the connecting rod 102 is connected to the damper 9 and the other end thereof is connected to the manual switch 101. The manual switch 101 is capable of driving the connecting rod 102 to move, so as to control the damper 9 to cover the air inlet 16 up or move away from the air inlet 16. Specifically, the manual switch 101 is disposed on one end plate 15. The connecting rod 102 is L-shaped. The damper 9 is provided with a connecting plate 91. One end of the connecting rod 102 is rotationally connected to the connecting plate 91. The other end thereof is fixedly connected to the manual switch 101 by bypassing the intermediate separator plate 14. More specifically, the intermediate separator plate 14 is provided with a fixing plate 103. The fixing plate 103 is provided with a guide block 104. The guide block 104 has a guide hole 1041. One end of the connecting rod 102 passes through the guide hole 1041 and is rotationally connected to the connecting plate 91. In this embodiment, the manual switch 101 includes a base 1011 provided with a chute and a shifting block 1012 disposed in the chute. The shifting block 1012 is fixedly connected to the connecting rod 102. Pulling the shifting block 1012 moves the shifting block 1012 along the chute. Then, the shifting block 1012 drives the connecting rod 102 to move. The movement of the connecting rod 102 drives the damper 9 to rotate, so that the damper 9 covers the air inlet 16 up or moves away from the air inlet 16. A rubber sleeve 105 is sleeved on the connecting rod 102 between the guide hole 1041 and the shifting block 1012 in order to avoid excessive abrasion at the joint between the connecting rod 102, and the intermediate separator plate 14 and the end plate 15. In a specific embodiment, when the damper 9 needs to be opened to allow fresh air to flow into the air inlet 16, the shifting block 1012 is toggled so that the shifting block 1012 moves along the chute towards a side close to the intermediate separator plate 14, and the shifting block 1012 pushes the connecting rod 102 to move along the guide hole 1041. Then, one end of the connecting rod 102 pushes the connecting plate 91 to drive the damper 9 to rotate, so that the damper 9 moves away from the air inlet 16 and fresh air can flow from the air inlet 16 into the first cavity 5. When the air inlet 16 needs to be closed, the shifting block 1012 is toggled so that the shifting block 1012 moves along the chute towards a side away from the intermediate separator plate 14, and the shifting block 1012 drives the connecting rod 102 to move. Then, the connecting rod 102 moves along the guide hole 1041 to drive the connecting plate 91 to move towards a side close to the intermediate separator plate 14, so that the damper 9 covers the air inlet 16 up and fresh air stops entering the first cavity 5.

An embodiment of the present invention further provides an air conditioner, including the fresh air assembly according to any implementation described above.

According to the fresh air assembly and the air conditioner in the embodiments of the present invention, a dehumidifier module is removed, and fresh air that is to enter an air-conditioned room is processed by using the evaporators 3, thereby improving utilization of the evaporators 3. In addition, the evaporators 3 are disposed around the cross-flow impeller 2, and this increases the space on the air intake side of the evaporators 3, ensures the intake volume and flow rate of the fresh air, and effectively ensures the volume of fresh air entering the room. Moreover, because the dehumidifier module is removed, noise is reduced, overall energy consumption and costs are decreased, and cleaning and maintenance are more convenient.

The foregoing descriptions are only example embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural or procedural variations made using the content of the specification and drawings of the present invention, or those directly or indirectly applied to other related technical fields, are likewise included in the patent scope of the present invention.

Claims

1. A fresh air assembly, comprising a housing, a cross-flow impeller, evaporators, and an air deflector; wherein:

the cross-flow impeller, the evaporators, and the air deflector are all disposed inside the housing;

the evaporators are disposed on one side of the cross-flow impeller in a direction around the cross-flow impeller;

both ends of the air deflector are connected to the housing to form a first cavity;

one end of the evaporators is connected to the housing and the other end is connected to the air deflector to form a second cavity, the second cavity communicates with the first cavity, the evaporators are enclosed with the air deflector to form a wind chamber, and the cross-flow impeller is disposed inside the wind chamber;

the air deflector is provided with air-guiding holes, and the first cavity communicates with the second cavity through the air-guiding holes; and

the housing is provided with an air outlet and an air inlet, the air outlet communicates with the wind chamber, and the air inlet communicates with the first cavity.

2. The fresh air assembly according to claim 1, wherein there are at least two evaporators, and the evaporators are connected in sequence.

3. The fresh air assembly according to claim 1, wherein the evaporators are arc-shaped or semicircular, and the arc-shaped or semicircular evaporators are disposed on one side of the cross-flow impeller.

4. The fresh air assembly according to claim 1, wherein there are at least two air-guiding holes, and the air-guiding holes are spaced on the air deflector.

5. The fresh air assembly according to claim 1, wherein the housing comprises a bottom plate, a top plate, an outer side plate, and an intermediate separator plate;

one end of the outer side plate and one end of the intermediate separator plate are respectively connected to opposite ends of the bottom plate; and

the top plate is disposed at the other end of the intermediate separator plate, and is spaced from the other end of the outer side plate to form the air outlet.

6. The fresh air assembly according to claim 5, wherein the bottom plate further comprises two end plates, the two end plates are respectively connected to the two ends of the outer side plate, the two ends of the intermediate separator plate, the two ends of the bottom plate, and two ends of the top plate to form an internal space accommodating the air deflector, the evaporators, and the cross-flow impeller.

7. The fresh air assembly according to claim 6, wherein the air deflector comprises an arc segment and a bending segment;

the arc segment is disposed on an outer side of the cross-flow impeller in the direction around the cross-flow impeller, and one end of the arc segment is connected to the top plate and the other end thereof is connected to the bending segment; and

the bending segment is fixedly connected to the bottom plate.

8. The fresh air assembly according to claim 7, wherein the bending segment comprises a connecting portion, an inclined portion, a vertical portion, and a flat portion;

one end of the connecting portion is connected to the arc segment, and the other end thereof is connected to the inclined portion;

one end of the vertical portion is connected to the inclined portion, the other end thereof is connected to the flat portion, and an included angle between the inclined portion and the vertical portion is an obtuse angle; and

the flat portion is fixedly connected to the bottom plate.

9. The fresh air assembly according to claim 7, wherein a baffle plate is provided between the bending segment and the intermediate separator plate, the baffle plate divides the first cavity into an upper cavity and a lower cavity, and the lower cavity communicates with the air inlet and the second cavity.

10. The fresh air assembly according to claim 7, wherein the air inlet is provided with a damper on a side facing away from the first cavity.

11. The fresh air assembly according to claim 10, further comprising an opening apparatus, wherein the damper is rotatably disposed on one side of the air inlet through a rotating shaft, and the opening apparatus is capable of driving the damper to rotate, so that the damper covers the air inlet up or moves away from the air inlet.

12. The fresh air assembly according to claim 11, wherein the opening apparatus comprises a manual switch and a connecting rod, one end of the connecting rod is connected to the damper and the other end thereof is connected to the manual switch, and the manual switch is capable of driving the connecting rod to move, so as to control the damper to cover the air inlet up or move away from the air inlet.

13. The fresh air assembly according to claim 12, wherein the manual switch is disposed on the end plate, the connecting rod is L-shaped, the damper is provided with a connecting plate, one end of the connecting rod is rotationally connected to the connecting plate, and the other end thereof is fixedly connected to the manual switch by bypassing the intermediate separator plate.

14. The fresh air assembly according to claim 13, wherein the intermediate separator plate is provided with a fixing plate, the fixing plate is provided with a guide block, the guide block has a guide hole, and one end of the connecting rod passes through the guide hole and is rotationally connected to the connecting plate.

15. The fresh air assembly according to claim 14, wherein the manual switch comprises a base provided with a chute and a shifting block disposed in the chute, and the shifting block is fixedly connected to the connecting rod.

16. An air conditioner, comprising the fresh air assembly according to claim 1.