FAN
A fan includes a motor portion having a shaft which rotates by taking a central axis as a center, an impeller portion configured at a side of the motor portion along the axial direction and connected with the shaft, and an upper cover portion configured at a radial outside of the impeller portion and in which the impeller portion is accommodated, the upper cover portion including an outside air guide wall portion located at a radial outside of the impeller portion, an inside air guide wall portion located at a radial inside of the outside air guide wall portion and having an air suction port which penetrates in an axial direction, and a plurality of connecting portions connected with the outside air guide wall portion and the inside air guide wall portion, characterized in that the impeller portion has a side wall portion which rotates by taking a central axis as a center, an upper wall portion located at a side of the side wall portion along the axial direction and extending along a radial direction, a plurality of wing portions extending along radially outside from the side wall portion, and a plurality of pressurizing wings configured at a side of the upper wall portion along the axial direction. With the structure of the fan, the air suction wind volume of the air suction port of the fan can be improved, and the exhaust efficiency can be increased.
This application claims the benefit of priority to Chinese Patent Application No. 201710364187.7 filed on May 22, 2017, Chinese Patent Application No. 201720574613.5 field on May 22, 2017 and Chinese Patent Application No. 201810359446.1 filed on Apr. 20, 2018. The entire contents of these applications are hereby incorporated herein by reference.
BACKGROUND OF THE INVENTION 1. Field of the InventionThe present disclosure relates to the fan field, and in particular to a fan.
2. Description of the Related ArtA brushed motor is generally adopted to drive an impeller of a household hair dryer (referred to as a fan); however in order to pursue a long lifetime, a high speed and a low electric wave, a brushless motor becomes necessary. As thus, a design with a higher air flow volume and a higher static pressure are demanded.
It should be noted that the above introduction to the technical background is just to facilitate a clear and complete description of the technical solution of the present disclosure, and is elaborated to facilitate the understanding of persons skilled in the art. It cannot be considered that the above technical solutions are known by persons skilled in the art just because these solutions are elaborated in the Background of the present disclosure.
SUMMARY OF THE INVENTIONIn order to solve the above problem mentioned in the Background, the embodiments of the present disclosure provide a fan, so as to improve an air flow volume and a static pressure at an air suction port of the fan and to improve the exhaust efficiency.
According to a first aspect of the embodiments of the present disclosure, a fan is provided, and the fan includes:
a motor portion having a shaft which rotates by taking a central axis as a center,
an impeller portion configured at a side of the motor portion along an axial direction and connected with the shaft,
and an upper cover portion configured at a radial outside of the impeller portion and in which the impeller portion is accommodated,
the upper cover portion including an outside air guide wall portion located at the radial outside of the impeller portion, an inside air guide wall portion located at a radial inside of the outside air guide wall portion and having an air suction port which penetrates in the axial direction, and a plurality of connecting portions connected with the outside air guide wall portion and the inside air guide wall portion,
wherein,
the impeller portion has a side wall portion which rotates by taking the central axis as a center, an upper wall portion located at a side of the side wall portion along the axial direction and extending along a radial direction, a plurality of wing portions extending along radially outside from the side wall portion, and a plurality of pressurizing wings configured at a side of the upper wall portion along the axial direction.
An advantageous effect of the present disclosure lies in that by adding a cover portion (the upper cover portion, including the air guide wall portion, the air suction port and the connecting portions) at a top surface (a side of an axial direction) of a motor of a fan, by providing the cover portion and the pressurizing wings of the impeller portion, an air flow volume and a static pressure of the air suction port are improved, whereby the exhaust efficiency can be improved.
Referring to the later description and figures, a specific embodiment mode of the present disclosure is disclosed in detail, indicating a manner that the principle of the present disclosure can be adopted. It should be understood that the embodiment mode of the present disclosure is not limited in terms of the scope. Within the scope of the appended claims, the embodiment mode of the present disclosure includes many changes, modifications and equivalents.
Features that are described and/or illustrated with respect to one embodiment mode may be used in the same way or in a similar way in one or more other embodiment modes and in combination with or instead of the features of the other embodiment modes.
It should be emphasized that the term “include/comprise”when used in this Description specifies the presence of features, integers, steps or components, but does not preclude the presence or addition of one or more other features, integers, steps or components.
The above and other elements, features, steps, characteristics and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments with reference to the attached drawings.
An element and a feature described in a figure or an embodiment mode of the present embodiments of the present disclosure can be combined with an element and a feature shown in one or more other figures or embodiment modes. In addition, in the figures, similar numerals represent corresponding components in several figures, and can be used to indicate corresponding components used in more than one embodiment mode.
The included figures are used to provide a further understanding on the embodiments of the present disclosure, constitute a part of the Description, are used to illustrate the embodiment modes of the present disclosure, and expound together with the text description the principle of the present disclosure. Obviously, the figures in the following description are only some embodiments of the present disclosure. Persons skilled in the art can also obtain other figures based on these figures under the premise that they do not pay inventive labor. In the figures:
Referring to the drawings, through the following Description, the above and other features of the embodiments of the present disclosure will become apparent. The following description and drawings specifically disclose the specific embodiment mode of the embodiments of the present disclosure, showing a partial embodiment mode which can adopt the principle of the embodiments of the present disclosure. It should be understood that the embodiments of the present disclosure are not limited to the described embodiment modes, on the contrary, the embodiments of the present disclosure include all the modifications, variations, and equivalents falling within the scope of the appended claims.
In the embodiments of the present disclosure, the term “first” and “second”, etc. are used to distinguish different elements in terms of appellation, but do not represent a spatial arrangement or time sequence, etc. of these elements, and these elements should not be limited by these terms. The term “and/or” includes any and all combinations of one or more of the associated listed terms. The terms “include”, “comprise” and “have”, etc. specify the presence of stated features, elements, members or components, but do not preclude the presence or addition of one or more other features, elements, members or components.
In the embodiments of the present disclosure, the singular forms “a/an” and “the”, etc. include plural forms, and should be understood broadly as “a kind of” or “a type of”, but not be defined as the meaning of “one”; in addition, the term “the” should be understood to include both the singular forms and the plural forms, unless the context clearly indicates otherwise. In addition, the term “according to” should be understood as “at least partially according to . . . ”, the term “based on” should be understood as “at least partially based on . . . ”, unless the context clearly indicates otherwise.
In the embodiments of the present disclosure, for ease of description, a direction parallel to a direction extending along a shaft is referred to as “an axial direction”, a radius direction taking the shaft as a center is referred to as “a radial direction”, and a circumferential direction taking the shaft as a center is referred to as “a circumferential direction”; however these are just for ease of description and do not limit orientations when a fan is used and manufactured.
The various implementations of the embodiments of the present disclosure will be described below with reference to the drawings. These implementations are only exemplary and do not limit on the embodiments of the present disclosure.
The present embodiment provides a fan.
As shown in
In the present embodiment, the upper side shown in
In the present embodiment, the cylindrical shape may be cylindrical shapes having the same diameter, but are not limited thereto, and may also be cylindrical shapes having a gradually changing diameter or different diameters. As shown in
Via this structure, air entering from the air suction port 304 not only has an axial flow channel (the straight arrow as shown in
In the present embodiment, no limitation on the structure of the motor portion 100 is made, the related art can be referenced for details.
The upper cover portion 300 of the fan of the present embodiment will be described below with reference to
In the present embodiment, no limitation on the structure of the inside air guide wall portion 302 of the upper cover portion 300 is made, and it may be a structure in a cylindrical shape and may also be a structure in a shape of an upside-down bowl, as shown in
In the present embodiment, as shown in
In the present embodiment, as shown in
In the present embodiment, no limitation on the structure of the connecting portions 303 is made, they may be set to be a hollowed-out structure as shown in
The impeller portion 200 of the fan of the present embodiment will be described below with reference to
In the present embodiment, as shown in
In the present embodiment, no limitation on the number of the wing portions 203 of the impeller 200 is made, they may be set to be seven as shown in
In the present embodiment, no limitation on the number of the pressurizing wings 204 is made, they may be set to be odd, for example five as shown in
In the present embodiment, as observed in an axial direction, at least a part of each of the pressurizing wings 204 is accommodated at an inner side of the inside air guide wall portion 302. That is to say, as shown in
In the present embodiment, as observed in an axial direction, at least a part of each of the pressurizing wings 204 and the air suction port 304 are opposed in an axial direction. As shown in
In one implementation, the pressurizing wings 204 are configured to incline in a circumferential direction by taking the central axis O as a center. For example, the pressurizing wings 204 may be configured to curve from a radial inner side to a radial outer side. In this way, by configuring the pressurizing wings 204 to curve, introduction of the air coming from the air suction port 304 can be promoted. Moreover, the pressurizing wings 204 are not limited to be configured to be curved surfaces, and can be also configured to incline with respect to the central axis O.
In one implementation, the number of the pressurizing wings 204 and the number of the wing portions 203 may be different. In the present implementation, the number of the pressurizing wings 204 is five, and the number of the wing portions 203 is seven. By making the number of the pressurizing wings 204 and the number of the wing portions 203 be different, interference between the pressurizing wings 204 and the wing portions 203 during rotating can be restrained, thereby to reduce noise.
In one implementation, the number of the pressurizing wings 204, the number of the wing portions 203 and the number of the connecting portions 303 may be different. In the present implementation, the number of the pressurizing wings 204 is five, the number of the wing portions 203 is seven, and the number of the connecting portions 303 is three. By making the number of the pressurizing wings 204, the number of the wing portions 203 and the number of the connecting portions 303 be different, interference among the pressurizing wings 204, the wing portions 203 and the connecting portions 303 during rotating can be restrained, thereby to reduce noise.
In the present embodiment, as shown in
In the present embodiment, similar to the connecting portions 303 of the upper cover portion 300, no limitations on the number and structure of the plurality of static wing portions 403 are made, they may be formed through various enforceable manners, the present embodiment only illustrates one structure and the number therein through
In the present embodiment, a side (the upper side as shown in
With the structure of the fan of the present embodiment, the air flow volume and the static pressure of the air suction port of the fan are improved and the exhaust efficiency is improved.
The present embodiment provides a blower having the fan according to Embodiment 1. In addition, the blower also has conventional components of other blowers, such as a power supply interface and a power supply line, etc. The present embodiment does not make limitations on structures, setting manners and functions of these conventional components, the related art can be referenced.
With the structure of the fan of the blower of the present embodiment, the air volume and the static pressure of the air suction port of the fan are improved and the exhaust efficiency is improved.
The present disclosure has been described herein above with reference to the specific embodiment modes, however persons skilled in the art should clearly know that the description is exemplary and does not limit the protection scope of the present disclosure. Persons skilled in the art can make various variations and modifications to the present disclosure based on the principle of the present disclosure, these variations and modifications are also within the scope of the present disclosure.
Claims
1. A fan, comprising:
- a motor portion having a shaft which rotates by taking a central axis as a center,
- an impeller portion configured at a side of the motor portion along an axial direction and connected with the shaft, and
- an upper cover portion configured at a radial outside of the impeller portion and in which the impeller portion is accommodated,
- the upper cover portion comprising an outside air guide wall portion located at a radial outside of the impeller portion, an inside air guide wall portion located at a radial inside of the outside air guide wall portion and having an air suction port which penetrates in the axial direction, and a plurality of connecting portions connected with the outside air guide wall portion and the inside air guide wall portion,
- characterized in that
- the impeller portion has a side wall portion which rotates by taking a central axis as a center, an upper wall portion located at a side of the side wall portion along the axial direction and extending along a radial direction, a plurality of wing portions extending along radially outside from the side wall portion, and a plurality of pressurizing wings configured at a side of the upper wall portion along the axial direction.
2. The fan according to claim 1, characterized in that a plurality of holes which penetrate in the axial direction are provided on the upper wall portion.
3. The fan according to claim 1, characterized in that the number of the pressurizing wings is odd.
4. The fan according to claim 1, characterized in that as observed in the axial direction, at least a part of each of the pressurizing wings is accommodated at an inside of the inside air guide wall portion.
5. The fan according to claim 1, characterized in that as observed in the axial direction, at least a part of each of the pressurizing wings and the air suction port are opposed in an axial direction.
6. The fan according to claim 1, characterized in that an end portion of the other side of the inside air guide wall portion along the axial direction and an end portion of a side of the side wall portion along the axial direction are opposed in a radial direction.
7. The fan according to claim 6, characterized in that an end portion of the other side of the inside air guide wall portion along the axial direction, an end portion of a side of the side wall portion along the axial direction and at least a part of each of the wing portions are opposed in a radial direction.
8. The fan according to claim 1, characterized in that the fan further comprises:
- a lower cover portion configured at the other side of the upper cover portion along the axial direction and connected with an end portion of the other side of the upper cover portion along the axial direction.
9. The fan according to claim 8, characterized in that the lower cover portion comprises a lower wall portion extending in a circumferential direction by taking a central axis as a center, a tower portion located at a radial inside of the lower wall portion, and a plurality of static wing portions connected with the lower wall portion and the tower portion.
10. The fan according to claim 9, characterized in that a side of the tower portion along the axial direction is provided with a substrate.
11. The fan according to claim 10, characterized in that the tower portion and the substrate are fixed by welding.
Type: Application
Filed: May 9, 2018
Publication Date: Nov 22, 2018
Inventors: Zhaowu GU (Dalian), Dongxu ZHANG (Dalian)
Application Number: 15/974,755