CN116181694A

CN116181694A - Air supply device and electric product

Info

Publication number: CN116181694A
Application number: CN202111431183.9A
Authority: CN
Inventors: 李鹏
Original assignee: Nidec Corp
Current assignee: Nidec Corp
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2023-05-30

Abstract

The invention provides an air supply device and an electric product. The air supply device comprises: a fan; a damper assembly disposed radially outward of the fan; a drive assembly that drives the damper assembly to rotate about the fan; the damper assembly comprises at least 1 damper, the damper comprises a first wall and a second wall, the end of the first wall, which is close to the fan, is connected with the end of the second wall, which is close to the fan, and the end of the first wall, which is far away from the fan, is separated from the end of the second wall, which is far away from the fan, in the circumferential direction. This can increase the air volume and the air speed of the blower.

Description

Air supply device and electric product

Technical Field

The present disclosure relates to air supply, and particularly to an air supply device and an electrical product.

Background

With the development of science and technology, the application field of the air supply device is more and more wide, for example, the air supply device can be applied to consumer electronics products, computers, refrigeration equipment, automobile fields and the like. Taking the refrigeration equipment as an example, the refrigeration equipment can be provided with a plurality of refrigeration areas, and each refrigeration area can be provided with a refrigeration area air inlet for guiding air into the refrigeration area. The air supply device can supply air to the air inlets of the refrigerating areas, so that the temperature of each refrigerating area is controlled.

It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present invention and is presented for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background of the invention section.

Disclosure of Invention

The inventors have found that in order to control the temperature of each cooling zone separately, a damper is typically provided on the air supply device, and the cooling zone air inlet is opened or closed by changing the position of the damper. In the related art, a damper of a blower device is generally in the shape of an arc extending in a direction parallel to a circumferential direction of a fan. When the wind blown by the fan of the blower passes through the damper, the wind is guided in a direction parallel to the circumferential direction of the fan. Since the air outlet direction of the fan is different from the circumferential direction of the fan, and when the opening direction of the air inlet of the equipment connected to the air supply device is different from the circumferential direction of the fan, the above-described structure of the damper is liable to cause a large wind loss. In particular, when the number of air outlets of the air supply device (for example, air inlets of a refrigerating area of a refrigerating device connected with the air supply device) is large, the opening size of the air outlets of the air supply device is small, and the air outlet volume or the air outlet velocity of each air outlet is small due to the restriction of the opening size of the air outlet. Therefore, when the number of air outlets of the air supply device is large, it is particularly necessary to reduce the air loss of the air supply device so as to increase the air output or the air output speed of the air supply device.

In order to solve at least one of the above problems or other similar problems, embodiments of the present invention provide an air supply device and an electrical product, which can reduce the air loss of the air supply device and improve the air output volume or the air output speed of the air supply device.

According to a first aspect of an embodiment of the present invention, there is provided an air supply device, including: a fan; a damper assembly disposed radially outward of the fan; a drive assembly that drives the damper assembly to rotate about the fan; the damper assembly comprises at least 1 damper, the damper comprises a first wall and a second wall, the end of the first wall, which is close to the fan, is connected with the end of the second wall, which is close to the fan, and the end of the first wall, which is far away from the fan, is separated from the end of the second wall, which is far away from the fan, in the circumferential direction.

According to a second aspect of an embodiment of the present invention, there is provided an electrical product comprising the air supply device according to the first aspect.

One of the beneficial effects of the embodiment of the invention is that: by providing the damper of the blower device to include the first wall and the second wall, and connecting the end of the first wall close to the fan with the end of the second wall close to the fan, and separating the end of the first wall away from the fan from the end of the second wall away from the fan in the circumferential direction, the damper can be made to have a certain thickness in the radial direction of the fan, and the damper as a whole can be made to extend in a direction that is not entirely parallel to the circumferential direction of the fan, so that the airflow flowing through the damper can be guided to flow in a predetermined direction, the wind loss of the blower device can be reduced, and the air outlet volume or the air outlet speed of the blower device can be increased.

Specific embodiments of the invention are disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the invention are not limited in scope thereby. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments in combination with or instead of the features of the other embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:

FIG. 1 is an exploded view of a blower according to an embodiment 1 of the present invention;

FIG. 2 is a schematic diagram of a fan of the blower according to embodiment 1 of the present invention;

FIG. 3 is a schematic view of a windshield assembly of an air moving device according to embodiment 1 of the present invention;

FIG. 4 is a plan view showing a part of the components of the blower according to embodiment 1 of the present invention;

FIG. 5 is a schematic diagram of part of the air supply device and the air outlet according to embodiment 1 of the present invention;

fig. 6 is another schematic diagram of a part of components and an air outlet of the air supply device in embodiment 1 of the present invention.

Detailed Description

The foregoing and other features of the invention will become apparent from the following description, taken in conjunction with the accompanying drawings. In the specification and drawings, there have been specifically disclosed specific embodiments of the invention that are indicative of some of the embodiments in which the principles of the invention may be employed, it being understood that the invention is not limited to the described embodiments but, on the contrary, is intended to cover all modifications, variations and equivalents falling within the scope of the appended claims.

In the drawings used in the following description, the components are made to be distinguishable on the drawing, and therefore, the scale differs for each component, and the present invention is not limited to the number of components, the shape of the components, the scale of the size of the components, and the relative positional relationship of the components described in these drawings.

In the embodiments of the present invention, the terms "first," "second," and the like are used to distinguish between different elements from each other by name, but do not indicate spatial arrangement or time sequence of the elements, and the elements should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprises," "comprising," "including," "having," and the like, are intended to reference the presence of stated features, elements, components, or groups of components, but do not preclude the presence or addition of one or more other features, elements, components, or groups of components.

In embodiments of the present invention, the singular forms "a," an, "and" the "include plural referents and should be construed broadly to mean" one "or" one type "and not limited to" one "or" another; furthermore, the term "comprising" is to be interpreted as including both the singular and the plural, unless the context clearly dictates otherwise. Furthermore, the term "according to" should be understood as "at least partially according to … …", and the term "based on" should be understood as "based at least partially on … …", unless the context clearly indicates otherwise.

In the embodiment of the present invention, a direction parallel to a direction extending along a central axis of a fan of the blower device is referred to as an "axial direction", a radial direction centered on the central axis is referred to as a "radial direction", and a direction around the central axis is referred to as a "circumferential direction". It should be noted that the definition of each direction in this specification is only for the convenience of illustrating the embodiments of the present invention, and does not limit the direction of the air supply device or the like when in use and manufacture.

Example 1

Embodiment 1 of the present invention provides an air supply device, and fig. 1 is an exploded schematic view of the air supply device of embodiment 1 of the present invention; FIG. 2 is a schematic diagram of a fan of the blower according to embodiment 1 of the present invention; fig. 3 is a schematic view of a windshield assembly of an air blowing device of embodiment 1 of the present invention.

In at least one embodiment, as shown in fig. 1 to 3, the air blowing device 100 includes: fan 1, windshield assembly 2 and drive assembly 3. Wherein the damper assembly 2 is arranged radially outside the fan 1. The driving assembly 3 drives the damper assembly 2 to rotate around the fan 1. The windshield assembly 2 includes at least 1 windshield 21 (four windshields 21 are shown in fig. 1).

Fig. 4 is a plan view of part of the components of the blower apparatus of embodiment 1 of the present invention, showing the fan 1 and the windshields 21 in the windshield assembly 2. As shown in fig. 4, the windshield 21 includes a first wall 211 and a second wall 212. The end A1 of the first wall 211 of the damper 21 near the fan 1 is connected to the end B1 of the second wall 212 of the damper 21 near the fan 1, and the end A2 of the first wall 211 far from the fan 1 is circumferentially separated from the end B2 of the second wall 212 far from the fan 1, as viewed in the axial direction.

By providing the damper 21 of the blower 100 to include the first wall 211 and the second wall 212 and connecting the end A1 of the first wall 211 close to the fan 1 with the end B1 of the second wall 212 close to the fan 1 and separating the end A2 of the first wall 211 away from the fan 1 from the end B2 of the second wall 212 away from the fan 1 in the circumferential direction, the damper 21 as a whole can be made to extend incompletely in the direction parallel to the circumferential direction of the fan 1, and thus, the air flow flowing through the damper 21 can be guided to flow in a predetermined direction, and the air loss of the blower 100 can be reduced, and the air outlet volume or the air outlet speed of the blower 100 can be increased.

In at least one embodiment, the air supply device 1 may be applied to various devices that need to supply air to an air inlet of the device (may also be referred to as an air outlet of the air supply device 1). For example, the air blower 1 may be applied to an air-cooled refrigerator, and the temperature of each area is controlled by blowing air to the air inlet of the cooling area of each cooling area of the air-cooled refrigerator.

In at least one embodiment, as shown in fig. 1 and 2, the fan 1 may be a centrifugal fan. For example, the air flow may enter the wheel space along the axial direction of the fan 1 and flow out of the wheel space in a prescribed direction under the drive of the impeller. Wherein the outflow direction of the air flow may be determined by the rotation direction, shape, extension direction, etc. of the impeller of the fan 1.

In at least one embodiment, as shown in fig. 3, the windshield assembly 2 can include at least 1 windshield 21 and a support 22 for supporting the windshield 21. The support portion 22 may have a substantially annular shape, and a through hole 23 is provided in the center of the support portion 22. After the damper assembly 2 is assembled with the fan 1, the fan 1 may suck air through the through holes 23. However, the present application is not limited thereto, and the support portion 22 may be provided in other shapes as needed.

In at least one embodiment, the drive assembly 3 can rotate the windshield 21 disposed on the support 22 by driving the support 22 to rotate about the central axis OO'. However, the present invention is not limited to this, and when the support portion 22 is not provided in the windshield assembly 2, the driving unit 3 may drive the windshield 21 and rotate the windshield 21, respectively.

In at least one embodiment, as shown in fig. 4, the windshield 21 can include a first wall 211 and a second wall 212. The first wall 211 and the second wall 212 extend at a predetermined angle with respect to the circumferential direction of the fan 1, as viewed in the axial direction. That is, the extending directions of the first wall 211 and the second wall 212 are not parallel to the circumferential direction of the fan 1. After the air flow flows out of the fan 1, it can be guided to the air outlet along the extending direction of the first wall 211 and the second wall 212. The damper 21 having the above-described structure can smoothly flow air from the fan 1 into the air outlet, and can reduce the wind loss of the blower device 100, as compared with an arc damper extending in the circumferential direction of the fan 1.

In at least one embodiment, as shown in fig. 4, the end A1 of the first wall 211 near the fan 1 and the end B1 of the second wall 212 near the fan 1 are connected, and the end A2 of the first wall 211 far from the fan 1 and the end B2 of the second wall 212 far from the fan are separated in the circumferential direction. This makes it possible to make the projection of the windshield 21 in the circumferential direction a predetermined length, and to open or close the air outlet.

In at least one embodiment, the first wall 211 and the second wall 212 may be integrally formed. However, the present application is not limited thereto, and the first wall 211 and the second wall 212 may be coupled together by way of assembly.

In at least one embodiment, the support 22 can be integrally formed with the first wall 211 and the second wall 212. However, the present application is not limited thereto, and the first wall 211 and the second wall 212 may be coupled to the support 22 by way of assembly.

In at least one embodiment, as shown in fig. 4, the extending direction of the first wall 211 may not be equal to 90 degrees from the circumferential direction of the fan 1, as viewed in the axial direction. Typically, the air outlet direction of the fan 1 is between the radial and circumferential directions of the fan 1. By making the extending direction of the first wall 211 non-parallel to the circumferential direction and the radial direction, the extending direction of the first wall 211 can be made close to the air outlet direction of the fan 1 or the same as the air outlet direction of the fan 1. Thus, the air loss of the air flow from the fan 1 to the air outlet can be reduced, and the air quantity flowing into the air outlet can be increased.

Taking damper 21-1 and damper 21-2 of fig. 4 as an example, the air flow in the range from end A1 of first wall 211 of damper 21-1 near fan 1 to end B2 of second wall 212 of damper 21-2 far from fan 1 can be guided to the air outlet between damper 21-1 and damper 21-2, and thus the amount of air flowing into the air outlet is greatly increased.

In at least one embodiment, as shown in fig. 4, the first wall 211 may extend along the airflow direction of the fan 1, for example, the first wall 211 is formed as an arc extending along the airflow direction of the fan 1. This can further reduce the wind loss and improve the air volume.

In at least one embodiment, as shown in fig. 4, the second wall 212 may extend in a radial direction of the fan 1, as viewed in the axial direction, for example, the second wall 212 is formed as a straight line extending in the radial direction of the fan 1. Thus, when the length of the damper 21 projected in the circumferential direction (i.e., the distance in the circumferential direction between the end A2 of the first wall 211 away from the fan 1 and the end B2 of the second wall 212 away from the fan 1) is fixed, the length of the first wall 211 can be made longest. Therefore, the effect of arranging the airflow direction can be improved, the wind loss is further reduced, and the air quantity is improved. However, the present application is not limited thereto, and the second wall 212 may extend in other directions, for example, the second wall 212 may extend in a direction at a predetermined angle to the radial direction, or the like.

In at least one embodiment, as shown in fig. 4, in the case where the damper assembly 2 includes more than 2 dampers 21, the end A2 of the first wall 211 of each damper 21 that is remote from the fan 1 and the end B2 of the second wall 212 that is remote from the fan 1 are the same distance from the central axis OO'.

That is, for each windshield 21, the end A2 of the first wall 211 and the end B2 of the second wall 212 are located on the same circumference, and the ends A2 and B2 of the different windshields 21-1, 21-2, 21-3, and 21-4 are also located on the same circumference. Therefore, the sealing effect when the air outlet is not closed can be ensured. However, the present application is not limited thereto, and the end portion A2 of the first wall 211 and the end portion B2 of the second wall 212 of each windshield 21 may be other positional relationships determined according to the shape of the air outlet.

In at least one embodiment, as shown in fig. 4, the distance between the end A1 of the first wall 211 of each damper 21 near the fan 1 and the central axis OO' is the same. Thus, the end portion A1 of the first wall 211 of each damper 21 does not interfere with the fan 1.

In at least one embodiment, as shown in fig. 4, where windshield assembly 2 includes more than 2 windshields 21, the relative position between each windshield 21 is unchanged as windshield assembly 2 rotates about fan 1. This can simplify the control system of the blower device 100, and can simplify the structure and operation system of the drive unit 3. However, the present application is not limited thereto, and the relative position between the respective windshields 21 may also be changed.

In at least one embodiment, as shown in fig. 4, where windshield assembly 2 includes more than 2 windshields 21, the axial height of each windshield 21 can be the same. Thus, when the damper assembly 2 rotates around the fan 1, each damper 21 does not interfere with other components, and the sealing effect of the air outlet in the closed state can be ensured.

In at least one embodiment, as shown in FIG. 4, the number of windshields 21, the length of windshields 21, and the spacing between adjacent windshields 21 is determined by the number and/or location of the outlets of air moving device 100. The air outlet of the air blower 100 may be an air outlet through which the air flow formed in the housing of the air blower 100 flows out of the air blower 100, or may be an air inlet through which the air flow of the equipment connected to the air blower 100 flows into the equipment. Here, the length of the windshield 21 may be the length of an arc corresponding to the projection of the windshield 21 in the circumferential direction.

In at least one embodiment, as shown in fig. 4, the number of windshields 21 may be the same as the number of air outlets. For example, when the number of air outlets is 4, the number of windshields 21 may be 4. However, the present application is not limited thereto, and the number of the windshields 21 may be different from the number of the air outlets, for example, the number of the windshields 21 may be 2 when the number of the air outlets is 3, or the number of the windshields 21 may be 1 when the number of the air outlets is 2.

In at least one embodiment, the windshield 21 corresponds to a central angle within a predetermined range of angles αThe number of the air outlets meets the following relation: α=n×360 °/2 ⁿ Wherein N is the number of air outlets, and N is a positive integer. The corresponding central angle of the windshield 21 may be the following angle: viewed in the axial direction, the line connecting the end portion A2 of the windshield 21 with the central axis OO 'forms an angle with the line connecting the end portion B2 of the windshield 21 with the central axis OO'.

In at least one embodiment, the predetermined range may be a range centered at an angle α, for example, α±5°. For example, when the number of air outlets is 3, the central angle corresponding to the windshield 21 is an integer multiple of 45 degrees ±5 degrees; when the number of the air outlets is 4, the central angle corresponding to the windshield 21 is an integer multiple of 22.5 degrees plus or minus 5 degrees.

In at least one embodiment, the central angle corresponding to the interval between adjacent windshields 21 is within a predetermined range of the angle β, and the angle β and the number of air outlets satisfy the following relation: beta=m×360 °/2 ⁿ Wherein n is the number of air outlets, and M is a positive integer. The central angle corresponding to the interval between adjacent windshields 21 may be as follows: taking windshield 21-1 and windshield 21-2 as an example, the angle between the line connecting end A2 of windshield 21-1 and center axis OO 'and the line connecting end B2 of windshield 21-2 and center axis OO' is viewed in the axial direction.

In at least one embodiment, the predetermined range may be a range centered at an angle β, for example, β±5°. For example, when the number of air outlets is 3, the central angle corresponding to the interval between adjacent windshields 21 is an integer multiple of 45 ° ± 5 °; when the number of air outlets is 4, the central angle corresponding to the interval between adjacent windshields 21 is an integer multiple of 22.5 degrees + -5 degrees.

The number of windshields 21, the length of the windshields 21, and the spacing between adjacent windshields 21 are described below in connection with specific examples. Fig. 5 is a schematic diagram of part of the components and the air outlet of the air supply device 100 according to embodiment 1 of the present invention. As shown in fig. 5, the air blowing device 100 may be provided with 4

adjacent air outlets

41, 42, 43, 44.

The windshield assembly 2 includes 4 windshields, namely, a first windshield 21-1, a second windshield 21-2, a third windshield 21-3 and a fourth windshield 21-4 in sequence along the circumferential direction, wherein a first interval 22-1 is arranged between the first windshield 21-1 and the second windshield 21-2, a second interval 22-2 is arranged between the second windshield 21-2 and the third windshield 21-3, a third interval 22-3 is arranged between the third windshield 21-3 and the fourth windshield 21-4, and a fourth interval 22-4 is arranged between the fourth windshield 21-4 and the first windshield 21-1, wherein the projection length ratio of the first windshield 21-1, the second windshield 21-2, the third windshield 21-3 and the fourth windshield 21-4 in the circumferential direction is as follows: the length ratio of the first interval 22-1, the second interval 22-2, the third interval 22-3 and the fourth interval 22-4 in the circumferential direction is 4:1:2:1: 4:2:1:1.

By setting the position and length of each windshield 21 in the windshield assembly 2 in the above manner, the opening and closing of the

air outlets

41, 42, 43, 44 can be independently controlled. That is, 16 combinations of the open/close states of the

air outlets

41, 42, 43, 44 can be realized.

For example, as shown in fig. 5, when the windshield assembly 2 is in the illustrated position, the

air outlets

41, 42, 43, 44 are opened, respectively;

when the windshield assembly 2 rotates 22.5 ° clockwise from the position shown in fig. 5, the first windshield 21-1 shields the air outlet 41, and the

air outlets

41, 42, 43, 44 are respectively closed, opened, and opened;

when the windshield assembly 2 rotates 45 ° clockwise from the position shown in fig. 5, the first windshield 21-1 shields the

air outlets

41, 42, and the

air outlets

41, 42, 43, 44 are closed, opened, and opened, respectively;

when the windshield assembly 2 is rotated 67.5 ° clockwise from the position shown in fig. 5, the first windshield 21-1 shields the

air outlets

41, 42, 43, and the

air outlets

41, 42, 43, 44 are closed, and open, respectively;

when the windshield assembly 2 is rotated 90 ° clockwise from the position shown in fig. 5, the first windshield 21-1 shields the

air outlets

41, 42, 43, 44, and the

air outlets

41, 42, 43, 44 are closed, and closed, respectively;

when the windshield assembly 2 is rotated 112.5 ° clockwise from the position shown in fig. 5, the first windshield 21-1 shields the

air outlets

42, 43, 44, and the

air outlets

41, 42, 43, 44 are opened, closed, respectively;

when the windshield assembly 2 rotates 135 ° clockwise from the position shown in fig. 5, the first windshield 21-1 shields the

air outlets

43, 44, the fourth windshield 21-4 shields the air outlet 41, and the

air outlets

41, 42, 43, 44 are respectively closed, opened, closed;

when the windshield assembly 2 rotates clockwise by 157.5 ° from the position shown in fig. 5, the first windshield 21-1 shields the air outlet 44, the fourth windshield 21-4 shields the air outlet 42, and the

air outlets

41, 42, 43, 44 are opened, closed, opened, and closed, respectively;

when the windshield assembly 2 rotates 180 degrees clockwise from the position shown in fig. 5, the third windshield 21-3 shields the air outlet 41, the fourth windshield 21-4 shields the air outlet 43, and the

air outlets

41, 42, 43 and 44 are respectively closed, opened and closed;

when the windshield assembly 2 rotates 202.5 ° clockwise from the position shown in fig. 5, the third windshield 21-3 shields the

air outlets

41, 42, and the fourth windshield 21-4 shields the air outlet 44, and the

air outlets

41, 42, 43, 44 are respectively closed, opened, and closed;

when the windshield assembly 2 rotates 225 ° clockwise from the position shown in fig. 5, the third windshield 21-3 shields the

air outlets

42, 43, and the

air outlets

41, 42, 43, 44 are opened, closed, and opened, respectively;

when the windshield assembly 2 is rotated 247.5 ° clockwise from the position shown in fig. 5, the third windshield 21-3 shields the

air outlets

43, 44, and the

air outlets

41, 42, 43, 44 are opened, closed, and closed, respectively;

when the windshield assembly 2 rotates 270 degrees clockwise from the position shown in fig. 5, the third windshield 21-3 shields the air outlet 44, the windshield 21-2 shields the air outlet 41, and the

air outlets

41, 42, 43, 44 are respectively closed, opened and closed;

when the windshield assembly 2 rotates 292.5 ° clockwise from the position shown in fig. 5, the second windshield 21-2 shields the air outlet 42, and the

air outlets

41, 42, 43, 44 are opened, closed, opened, and opened, respectively;

when the windshield assembly 2 rotates 315 ° clockwise from the position shown in fig. 5, the second windshield 21-2 shields the air outlet 43, and the

air outlets

41, 42, 43, 44 are opened, closed, and opened respectively;

when the windshield assembly 2 rotates 337.5 ° clockwise from the position shown in fig. 5, the second windshield 21-2 shields the air outlet 44, and the

air outlets

41, 42, 43, 44 are opened, and closed, respectively;

when the windshield assembly 2 is rotated clockwise 360 ° from the position shown in fig. 5, the windshield assembly 2 returns to the position shown in fig. 5, and the

air outlets

41, 42, 43, 44 are fully opened.

Fig. 6 is another schematic diagram of part of the components and the air outlet of the air supply device 100 according to embodiment 1 of the present invention. As shown in fig. 6, the air blowing device 100 may be provided with 3

adjacent air outlets

51, 52, 53.

The windshield assembly 2 includes 2 windshields, namely a fifth windshield 21-5 and a sixth windshield 21-6 in turn along the circumferential direction, and a fifth interval 22-5 and a sixth interval 22-6 are arranged between the fifth windshield 21-5 and the sixth windshield 21-6, wherein the length ratio of the projections of the fifth windshield 21-5 and the sixth windshield 21-6 in the circumferential direction is: 3:1, the length ratio of the fifth interval 22-5 and the sixth interval 22-6 in the circumferential direction is: 1:3.

air outlets

51, 52, 53 can be independently controlled. That is, 8 combinations of the open/close states of the

air outlets

51, 52, 53 can be realized.

For example, as shown in fig. 6, when the windshield assembly 2 is in the illustrated position, the

air outlets

51, 52, 53 are closed, respectively;

when the windshield assembly 2 rotates 45 ° clockwise from the position shown in fig. 6, the fifth windshield 21-5 shields the

air outlets

52, 53, and the

air outlets

51, 52, 53 are opened, closed, and closed, respectively;

when the windshield assembly 2 is rotated clockwise by 90 ° from the position shown in fig. 6, the fifth windshield 21-5 shields the air outlet 53, and the

air outlets

51, 52, 53 are opened, and closed, respectively;

when the windshield assembly 2 rotates 135 ° clockwise from the position shown in fig. 6, the

air outlets

51, 52, 53 are opened, respectively;

when the windshield assembly 2 rotates 180 ° clockwise from the position shown in fig. 6, the sixth windshield 21-6 shields the air outlet 51, and the

air outlets

51, 52, 53 are closed, opened, and opened, respectively;

when the windshield assembly 2 rotates 225 degrees clockwise from the position shown in fig. 6, the sixth windshield 21-6 shields the air outlet 52, and the

air outlets

51, 52 and 53 are respectively opened, closed and opened;

when the windshield assembly 2 rotates 270 degrees clockwise from the position shown in fig. 6, the sixth windshield 21-6 shields the air outlet 53, the fifth windshield 21-5 shields the air outlet 51, and the

air outlets

51, 52, 53 are respectively closed, opened and closed;

when the windshield assembly 2 rotates 315 ° clockwise from the position shown in fig. 6, the fifth windshield 21-5 shields the

air outlets

51, 52, and the

air outlets

51, 52, 53 are closed, and open, respectively;

when the windshield assembly 2 is rotated clockwise 360 ° from the position shown in fig. 6, the windshield assembly 2 returns to the position shown in fig. 6, and the

air outlets

51, 52, 53 are fully closed.

In at least one embodiment, the drive assembly 3 may comprise a stepper motor. This enables the windshield assembly 2 to be driven reliably. For example, the drive assembly 2 may rotate less than or equal to 360 °/2 per step ⁿ The windshield assembly is driven, thereby controlling the air outlets independently. However, the present application is not limited thereto, and the driving assembly 3 may also include other types of motors.

Note that, the structure of the blower device 100 according to the present invention is described above, and other structures of the blower device 100 may be referred to the related art, and the description thereof is omitted here.

According to the above embodiment, the damper 21 of the blower 100 is provided to include the first wall 211 and the second wall 212, and the end A1 of the first wall 211 close to the fan 1 is connected to the end B1 of the second wall 212 close to the fan 1, and the end A2 of the first wall 211 remote from the fan 1 is separated from the end B2 of the second wall 212 remote from the fan 1 in the circumferential direction, whereby the damper 21 as a whole can be made to extend in a direction not entirely parallel to the circumferential direction of the fan 1, and the air flow flowing through the damper 21 can be guided to flow in a predetermined direction, whereby the air loss of the blower 100 can be reduced, and the air outlet volume or the air outlet speed of the blower 100 can be increased.

Example 2

The present embodiment provides an electrical product including the blower device 100 described in embodiment 1, and since the structure of the blower device has been described in embodiment 1, the content thereof is incorporated herein and will not be described again.

With the electrical product of the present embodiment, since the structure of the blower device described in embodiment 1 is adopted, the damper 21 of the blower device 100 is provided to include the first wall 211 and the second wall 212, and the end A1 of the first wall 211 close to the fan 1 is connected to the end B1 of the second wall 212 close to the fan 1, and the end A2 of the first wall 211 remote from the fan 1 is separated from the end B2 of the second wall 212 remote from the fan 1 in the circumferential direction, whereby the damper 21 as a whole can be made not to extend entirely in the direction parallel to the circumferential direction of the fan 1, and the air flow flowing through the damper 21 can be guided to flow in the predetermined direction, whereby the air loss of the blower device 100 can be reduced, and the air outlet volume or the air outlet speed of the blower device 100 can be improved.

In the present embodiment, the electric product may be any electric product using an air blowing device, and for example, may be consumer electronics products, computer products, vehicle-mounted products, refrigeration equipment (e.g., a refrigerator), and the like.

While the invention has been described in connection with specific embodiments, it will be apparent to those skilled in the art that the description is intended to be illustrative and not limiting in scope. Various modifications and alterations of this invention will occur to those skilled in the art in light of the spirit and principles of this invention, and such modifications and alterations are also within the scope of this invention.

Claims

1. An air moving device, the air moving device comprising:

a fan;

a damper assembly disposed radially outward of the fan;

a drive assembly that drives the damper assembly to rotate about the fan;

it is characterized in that the method comprises the steps of,

the damper assembly comprises at least 1 damper, the damper comprises a first wall and a second wall, the end of the first wall, which is close to the fan, is connected with the end of the second wall, which is close to the fan, and the end of the first wall, which is far away from the fan, is separated from the end of the second wall, which is far away from the fan, in the circumferential direction.

2. The air supply device according to claim 1, wherein,

the included angle between the extending direction of the first wall and the circumferential direction of the fan is not equal to 90 degrees when the first wall is observed along the axial direction.

3. A blowing device according to claim 1 or 2, characterized in that,

the first wall extends in an airflow direction of the fan, as viewed in an axial direction.

4. The air supply device according to claim 1, wherein,

the second wall extends in a radial direction of the fan, as viewed in an axial direction.

5. The air supply device according to claim 1, wherein,

in the case where the damper assembly includes 2 or more dampers, the distance between the end of the first wall of each damper, which is close to the fan, and the central axis is the same, and the distance between the end of the first wall of each damper, which is far from the fan, and the end of the second wall, which is far from the fan, and the central axis is the same.

6. The air supply device according to claim 1, wherein,

in the case where the damper assembly includes more than 2 dampers, the relative position between the respective dampers is unchanged as the damper assembly rotates about the fan.

7. The air supply device according to claim 1, wherein,

in the case where the windshield assembly includes more than 2 windshields, the height of each of the windshields is the same.

8. The air supply device according to claim 1, wherein,

the number of the windshields, the length of the windshields projected in the circumferential direction and the interval between the adjacent windshields are determined by the number and/or the positions of the air outlets of the air supply device.

9. The air supply device according to claim 8, wherein,

the number of the windshields is the same as that of the air outlets.

10. The air supply device according to claim 8, wherein,

the central angle corresponding to the windshield is in a preset range of an angle alpha, and the number of the angle alpha and the number of the air outlets meet the following relational expression: α=n×360 °/2N, where N is the number of the air outlets and N is a positive integer.

11. The air supply device according to claim 8, wherein,

the central angles corresponding to the intervals between adjacent windshields are in a preset range of an angle beta, and the number of the angle beta and the number of the air outlets meet the following relational expression: beta=m×360 °/2n, where n is the number of the air outlets, and M is a positive integer.

12. The air supply device according to claim 8, wherein,

under the condition that the air supply device is provided with 4 adjacent air outlets, the windshield assembly comprises 4 windshields, wherein the windshields are a first windshield, a second windshield, a third windshield and a fourth windshield in sequence along the circumferential direction, a first interval is arranged between the first windshield and the second windshield, a second interval is arranged between the second windshield and the third windshield, a third interval is arranged between the third windshield and the fourth windshield, a fourth interval is arranged between the fourth windshield and the first windshield, and the length ratio of the first windshield, the second windshield, the third windshield and the fourth windshield in the circumferential direction is as follows: 4:1:2:1, the length ratio of the first interval, the second interval, the third interval, and the fourth interval in the circumferential direction is: 4:2:1:1.

13. The air supply device according to claim 1, wherein,

the drive assembly includes a stepper motor.

14. An electrical product comprising the air supply device according to any one of claims 1-13.