WO2022100644A1

WO2022100644A1 - Fan cover and fan assembly

Info

Publication number: WO2022100644A1
Application number: PCT/CN2021/129982
Authority: WO
Inventors: 於巍; 鲍韬
Original assignee: 法雷奥汽车空调湖北有限公司
Priority date: 2020-11-11
Filing date: 2021-11-11
Publication date: 2022-05-19
Also published as: CN213928886U

Abstract

A fan cover (92) and a fan assembly (900) provided with same. The fan cover (92) is provided with a through hole portion (1) and a blocking cover (2); the through hole portion (1) has a through hole (92a); and the blocking cover (2) is connected to the through hole portion (1) and is configured to be bentable, so as to block the through hole (92a).

Description

A fan cover and fan assembly

technical field

The utility model relates to a fan cover and a fan assembly equipped with the fan cover.

Background technique

The automobile air conditioning assembly includes a fan assembly, and the fan assembly includes a fan body, a driver and a fan cover. The main body of the fan includes an impeller and a cavity, and a driver, such as a motor, is installed in the cavity and used to drive the impeller to rotate. The fan cover is arranged on the fan body to seal the driver in the cavity.

The fan assembly needs to be checked for balance after assembly.

In the prior art, the fan assembly has the disadvantages of relatively time-consuming detection and low efficiency.

Utility model content

The purpose of the present utility model is to provide a fan cover, the through hole of the fan cover is easy to be closed, and thus has the advantage of high detection efficiency.

The utility model also aims to provide a fan assembly, the fan assembly includes the fan cover.

In order to achieve the purpose, the fan cover is used to cover the fan body, and it is characterized in that the fan cover has a through hole part and a blocking cover; the through hole part has a through hole; the blocking cover is connected to the on the through-hole portion, and is provided to be able to bend, so as to block the through-hole.

In one embodiment, the blocking cover has a thin portion and a thick portion; the thickness of the thin portion is smaller than the thickness of the thick portion in a direction transverse to the blocking cover; the blocking cover passes through the thin portion The bending of the part occurs.

In one embodiment, the two adjacent thick parts are separated by the thin parts, wherein the two adjacent thick parts and the thin parts are formed on the plug cover to traverse the plug The groove-like structure of the lid; the thin portion is bent in a direction that closes the groove-like structure.

In one embodiment, the two adjacent thin parts are separated by the thick part, wherein the blocking cover generates the bending through the bending of the two adjacent thin parts respectively.

In one embodiment, the thick portion has at least one connecting segment; the connecting segment is connected to the thin portion; the thickness of the connecting segment connected to the thin portion gradually increases in a direction away from the thin portion big.

In one embodiment, the through hole portion and the blocking cover are integrally formed.

In one embodiment, the through hole portion includes a surrounding wall and an elastic sealing structure; the surrounding wall defines the through hole; the elastic sealing structure is connected to the surrounding wall and extends into the through hole; the elastic sealing structure is used for abutting against the blocking cover to seal the gap between the blocking cover and the surrounding wall.

In one embodiment, the surrounding wall body includes a first wall body, a second wall body, a third wall body and a fourth wall body; the first wall body and the second wall body are oppositely disposed and respectively are located on both sides of the through hole; the third wall body and the fourth wall body are arranged opposite to each other and are respectively located on both sides of the through hole; one end of the blocking cover is connected to the first wall body, The other end of the blocking cover is configured to be clamped with the second wall body 102 after the blocking cover is bent; the two elastic sealing structures are respectively connected to the third wall body and the fourth wall body .

In one embodiment, the blocking cover has a first limiting portion and a second limiting portion; the second wall is clamped between the first limiting portion and the second limiting portion.

A fan assembly for achieving the stated object includes a fan cover as described above.

The positive improvement effect of the present utility model is that: the fan cover provided by the present utility model has a through-hole part and a blocking cover; the through-hole part has a through-hole; Blocking the through hole; this design allows the operator to block the through hole only by bending the blocking cover. Therefore, the fan cover provided by the utility model has the advantage that the through hole is easy to be closed, and thus has the advantage of high detection efficiency. The fan assembly provided by the utility model includes the fan cover as above.

Description of drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description in conjunction with the accompanying drawings and embodiments, wherein:

1 is a schematic diagram of a fan assembly in a comparative example;

2 is a cross-sectional view of a fan assembly in a comparative example;

Fig. 3 is the schematic diagram of the fan cover in the comparative example;

4 is a schematic diagram of a fan cover in an embodiment of the present utility model;

Fig. 5 is the top view of the fan cover in the embodiment of the utility model;

Fig. 6 is the enlarged view of A place in Fig. 4;

Fig. 7 is the sectional view of the direction B-B in Fig. 5;

Fig. 8 is an enlarged view at C in Fig. 7;

9 is a schematic diagram of bending of a thin portion close to a through-hole portion;

10 is a schematic diagram of the completion of the bending of the thin portion near the through hole portion;

11 is a schematic diagram of bending of a thin portion away from the through hole portion;

12 is a schematic diagram of the completion of the bending of the thin portion away from the through hole portion;

Figure 13 is a cross-sectional view of the plug cover being clamped with the through-hole portion after being bent;

Figure 14 is a sectional view of the fan cover;

Figure 15 is an enlarged view at D in Figure 14;

Figure 16 is a cross-sectional view of the elastic sealing structure against the cover, showing the gap;

17 is a schematic diagram of a fan cover in an embodiment of the present invention.

Detailed ways

The following discloses various implementations or examples of the subject technical solution in different implementations. In order to simplify the disclosure, specific examples of each element and arrangement are described below. Of course, these are only examples and are not intended to limit the protection scope of the present invention. For example, the distribution of the first feature in the second feature described later in the specification may include an embodiment in which the first and second features are distributed in a direct relationship, and may also include an embodiment in which additional features are formed between the first and second features. implementation so that there may be no direct connection between the first and second features. Additionally, reference numerals and/or letters may be repeated in various instances throughout the content. This repetition is for brevity and clarity and does not in itself represent a relationship between the various embodiments and/or structures being discussed. Further, when a first element is described as being connected or combined with a second element, the description includes embodiments in which the first and second elements are directly connected or combined with each other, and also includes the addition of one or more other intervening elements. The first and second elements are indirectly connected or joined to each other.

It should be noted that FIG. 1 to FIG. 17 are only examples, which are not drawn according to the condition of equal scale, and should not be taken as a limitation on the protection scope actually required by the present invention.

1 to 3 show a comparative example. Figures 4 to 17 show embodiments of the present invention, and in these figures, the reference numerals in Figures 1 to 3 are used for the same parts.

As shown in FIGS. 1 , 2 and 3 , in a comparative example, an automobile air conditioner assembly includes a fan assembly 900 , and the fan assembly 900 includes a fan body 90 , a driver 91 and a fan cover 92 . The fan body 90 includes an impeller 901 and a cavity 90a, and a driver 91 is installed in the cavity 90a and used to drive the impeller 901 to rotate. The fan cover 92 is covered on the fan body 90 to enclose the driver 91 in the cavity 90a. The driver 91 may be, but is not limited to, a motor. The fan cover 92 can be made of plastic material.

In order to check the balance of the fan assembly 900, the fan cover 92 is provided with a through hole 92a, and the through hole 92a communicates with the cavity 90a. The clamp 800 can extend into the cavity 90a through the through hole 92a, so as to clamp the driver 91, so as to realize the clamping of the fan assembly 900.

After the inspection, the through hole 92a needs to be closed. In the comparative example, an adhesive film is used to stick to the through hole 92a of the fan cover 92 to close the through hole 92a. However, in the actual operation process, the operator needs to take out the film first, align it with the through hole 92a, and then stick it on, which is time-consuming and affects the efficiency.

In order to solve the above problems, in an embodiment of the present utility model, as shown in Figures 4 and 5, the fan cover 92 has a through hole part 1 and a plug cover 2; the through hole part 1 has a through hole 92a; the plug cover 2 is connected to the The through-hole portion 1 is provided so as to be able to be bent so as to block the through-hole 92a. Such a design enables the operator to block the through hole 92a only by bending the blocking cover 2 . Therefore, the fan cover provided by the present invention has the advantage that the through hole is easy to close. In a preferred embodiment, the through hole portion 1 and the blocking cover 2 are integrally formed.

The shape of the through hole 92a and the cover 2 is not limited to the rectangle as shown in FIG. 5 . The shape of the blocking cover 2 matches the shape of the through hole 92 a so as to be suitable for closing the blocking cover 2 .

The closure cap 2 can have bendable properties in a number of ways. For example, the blocking cover 2 may have an elastic portion (not shown in the drawings) made of elastic material, which can deform when subjected to force, thereby allowing the blocking cover 2 to bend. The elastic material may be a rubber material.

In the embodiments shown in FIGS. 6 , 7 , 8 , 9 , 10 , 11 , 12 and 13 , the blocking cover 2 has a thin portion 21 and a thick portion 22 ; the thickness h1 of the thin portion 21 is set to be smaller than the thickness of the thick portion 22 . Thickness h2, so that the cover 2 can be bent in the thin part 21. The thin part 21 and the thick part 22 can be made of the same material, which helps to reduce the manufacturing cost. Since the thickness is relatively small, the structural strength of the thin portion 21 is weaker than that of the thick portion 22 . When the operator applies force to the cover 2 , the thin portion 21 will bend before the thick portion 22 .

As shown in FIGS. 8 and 17 , the thickness h1 of the thin portion 21 is smaller than the thickness h2 of the thick portion 22 in the direction transverse to the cover 2 . This design enables the thin portion 21, together with the two thick portions 22 adjacent to the thin portion 21, to form a groove-like structure 20 on the cover 2 that traverses the cover 2, wherein the thin portion 21 forms the recess The bottom wall of the groove-shaped structure 20 and the two thick portions 22 respectively form two side walls of the groove-shaped structure 20 , and the groove-shaped structure 20 communicates with both sides of the blocking cover 2 . Since the groove-shaped structure 20 traverses the blocking cover 2, the thin portion 21 can be easily bent along the direction in which the groove-shaped structure 20 is closed. The direction in which the groove-shaped structures 20 are closed is the direction in which the two side walls of the groove-shaped structures 20 approach each other.

As shown in FIGS. 6 and 17 , the thin portion 21 and the thick portion 22 can be formed by forming depressions in the outer surface of the plug cover 2 . The blocking cover 2 may be a strip-shaped structure with a certain thickness. Specifically, the outer surface of the plug cover 2 includes a first transverse surface 201 , a second transverse surface 202 , a first longitudinal surface 203 and a second longitudinal surface 204 . The first transverse surface 201 and the second transverse surface 202 are oppositely disposed on both sides of the cover 2, preferably parallel to each other, and the first longitudinal surface 203 and the second longitudinal surface 204 respectively extend from the first transverse surface 201 to the second Lateral surface 202 . The first longitudinal surface 203 and the second longitudinal surface 204 are oppositely disposed on the other two sides of the blocking cover 2 , preferably parallel to each other. The distance between the first lateral surface 201 and the second lateral surface 202 is the thickness of the plug cover 2 . The thickness h1 of the thin portion 21 and the thickness h2 of the thick portion 22 are both the thicknesses of the cover 2 at different positions in the extending direction thereof. The extending direction of the blocking cover 2 may be the length direction E of the first lateral surface 201 and the second lateral surface 202 .

In the extending direction of the cover 2 , the first lateral surface 201 is recessed to form a thin portion 21 and a thick portion 22 on the cover 2 . The thin portions 21 and the thick portions 22 are alternately distributed to form at least one of the above-mentioned groove-like structures 20 on the first lateral surface 201 . The groove-like structure 20 traverses the cover 2 , ie the groove-like structure 20 extends from the first longitudinal surface 203 to the second longitudinal surface 204 .

As shown in FIGS. 7 and 8 , the thick part 22 has a connecting section 221 ; the connecting section 221 is connected with the thin section 21 ; the thickness h2 of the connecting section 221 increases gradually along the direction away from the thin section 21 . Such a design enables the thin portion 21 to have a larger bending angle.

The two adjacent thin parts 21 are separated by the thick part 22 , wherein the blocking cover 2 is bent by the bending of the two adjacent thin parts 21 respectively.

As shown in FIG. 8 , in a specific embodiment, the thick part 22 further has a main body section 222 , which is connected with the connecting section 221 ; The body section 222 is adapted to be pressed by an operator.

The number of the thin portion 21 may be one (not shown in the drawings), or may be multiple as shown in FIG. 8 .

Continuing to refer to FIG. 8 , the thick portion 22 separating the two adjacent thin portions 21 has two symmetrically arranged connecting segments 221 , and the two connecting segments 221 are respectively connected to the two thin portions 21 . More specifically, the two connecting segments 221 are symmetrically arranged with respect to the central plane P of the thick portion 22 in the thickness direction of the plug cover 2 . The arrangement of the thick portion 22 helps to reduce the total length of the thin portion 21 of the cover 2 under the premise of allowing the cover 2 to be bent, and enables the groove-shaped structure 20 to remain stable after being closed.

Continuing to refer to FIG. 8 , the thin portion 21 is respectively connected with the two connecting segments 221 , wherein the two connecting segments 221 belong to the two thick portions 22 respectively. The thickness h2 of the connecting segment 221 gradually increases along the direction away from the thin portion 21, and the two adjacent connecting segments 221 connected to the thin portion 21 can be symmetrically distributed on both sides of the thin portion 21, so that the thin portion 21 can have With a larger bending angle, the two connecting segments 221 adjacent to the thin portion 21 will not interfere, that is, the thin portion 21 can have a larger bending angle before the groove-shaped structure 20 is closed.

Continuing to refer to FIG. 8 , the thick part 22 is connected to the through hole part 1 , so that the connection strength of the connection between the thick part 22 and the through hole part 1 can be increased. More specifically, as shown in FIG. 8 , the connecting section 221 of the thick portion 22 is connected to the through-hole portion 1 .

As shown in FIGS. 14 , 15 and 16 , the through hole portion 1 includes a surrounding wall body 10 and an elastic sealing structure 11 ; the surrounding wall body 10 defines a through hole 92 a ; the elastic sealing structure 11 is connected to the surrounding wall body 10 and Extends into the through hole 92a; the elastic sealing structure 11 is used to abut against the blocking cover 2 to seal the gap G between the blocking cover 2 and the surrounding wall 10. The elastic sealing structure 11 is a sheet-like structure, which is inclined and forms a certain angle with the surrounding wall body 10 . After the elastic sealing structure 11 abuts against the blocking cover 2 , the elastic sealing structure 11 is elastically deformed. The number of the elastic sealing structures 11 is two, which are pressed against both sides of the blocking cover 2 respectively. The elastic sealing structure 11 is preferably connected to the inner wall of the surrounding wall body 10 .

As shown in FIGS. 6 , 9 , 15 and 16 , the surrounding wall body 10 includes a first wall body 101 , a second wall body 102 , a third wall body 103 and a fourth wall body 104 ; the first wall body 101 and the second wall body 104 The walls 102 are oppositely arranged and are located on both sides of the through hole 92a; the third wall 103 and the fourth wall 104 are arranged oppositely and are respectively located on both sides of the through hole 92a; one end of the blocking cover 2 is connected to the first wall 101 , the other end of the blocking cover 2 is arranged to be snapped with the second wall 102 after the blocking cover 2 is bent; the two elastic sealing structures 11 are respectively connected to the third wall 103 and the fourth wall 104 .

The elastic sealing structure 11 preferably extends from the inner walls of the third wall 103 and the fourth wall 104 toward the through hole 92a.

More specifically, referring to FIGS. 6 and 13, the cover 2 has a first limiting portion 2a and a second limiting portion 2b; the through hole portion 1 is clamped between the first limiting portion 2a and the second limiting portion 2b, This design can bring better snapping stability. More specifically, the second wall 102 of the surrounding wall 10 is clamped between the first limiting portion 2a and the second limiting portion 2b, wherein the first limiting portion 2a and the second limiting portion 2b define The opening faces the groove 2c of the surrounding wall 10, so that the surrounding wall 10 can be easily snapped into the groove 2c.

As shown in FIGS. 6 and 13 , the first limiting portion 2 a is a hook-shaped structure for hooking one side of the through-hole portion 1 , and the second limiting portion 2 b abuts against the other side of the through-hole portion 1 . The first limiting portion 2a and the second limiting portion 2b define a slot in which the through hole portion 1 is clipped. The first limiting portion 2a has an inclined surface, and the inclined surface can guide the through-hole portion 1 to slide into the card slot after being in contact with the through-hole portion 1 .

7, 8, 9, 10, 11, 12, the process of blocking the through hole 92a by bending the blocking cover 2 will be described below. In the embodiments shown in these figures, the extension of the blocking cover 2 Directionally, the cover 2 has two thin parts 21 separated by a thick part 22 , and each thin part 21 is connected with two connecting sections 221 respectively.

As shown in Figures 7 and 8, the blocking cover 2 is in the initial position, and the bending process has not yet started. The initial position may be the position of the blocking cover 2 relative to the through hole portion 1 after the blocking cover 2 and the through hole portion 1 are integrally formed, and is not limited to a horizontal position. In Figs. 7 and 8, the initial position is the horizontal position.

Claims

A fan cover, which is used to cover a fan body (90), characterized in that the fan cover (92) has a through-hole portion (1) and a blocking cover (2);

The through-hole portion (1) has a through-hole (92a); the blocking cover (2) is connected to the through-hole portion (1) and is arranged to be able to bend to block the through-hole (92a) ).
The fan cover according to claim 1, wherein the blocking cover (2) has a thin part (21) and a thick part (22); the thickness (h1) of the thin part (21) is transverse to the The direction of the blocking cover (2) is smaller than the thickness (h2) of the thick part (22); the blocking cover (2) is bent by the bending of the thin part (21).
The fan cover according to claim 2, characterized in that, two adjacent thick parts (22) are separated by the thin part (21), wherein two adjacent thick parts (22) ) and the thin part (21) form a groove-like structure (20) on the blocking cover (2) that traverses the blocking cover (2); The trough-like structure (20) is bent in the direction in which it is closed.
The fan cover according to claim 2, wherein the two adjacent thin parts (21) are separated by the thick part (22), wherein the blocking cover (2) passes through the adjacent The bending is caused by the respective bending of the two thin portions (21).
The fan cover according to claim 2 or 4, wherein the thick part (22) has at least one connecting segment (221); the connecting segment (221) is connected with the thin part (21); and The thickness (h2) of the connecting segment (221) connected by the thin portion (21) gradually increases in the direction away from the thin portion (21).
The fan cover according to claim 1, wherein the through hole portion (1) and the blocking cover (2) are integrally formed.
The fan cover according to claim 1, wherein the through hole portion (1) comprises a surrounding wall (10) and an elastic sealing structure (11); the surrounding wall (10) defines the the through hole (92a); the elastic sealing structure (11) is connected to the surrounding wall body (10) and extends into the through hole (92a);

The elastic sealing structure (11) is used to abut against the blocking cover (2) to seal the gap (G) between the blocking cover (2) and the surrounding wall body (10).
The fan cover according to claim 7, wherein the surrounding wall body (10) comprises a first wall body (101), a second wall body (102), a third wall body (103) and a fourth wall body (103) a wall body (104); the first wall body (101) and the second wall body (102) are arranged opposite to each other and are respectively located on both sides of the through hole (92a); the third wall body (103) are arranged opposite to the fourth wall body (104) and are respectively located on both sides of the through hole (92a);

One end of the blocking cover (2) is connected to the first wall body 101, and the other end of the blocking cover (2) is arranged to be snapped with the second wall body 102 after the blocking cover (2) is bent ; The two elastic sealing structures (11) are respectively connected to the third wall body (103) and the fourth wall body (104).
The fan cover according to claim 8, characterized in that, the blocking cover (2) has a first limiting portion (2a) and a second limiting portion (2b); the second wall (102) is clamped between the first limiting portion (2a) and the second limiting portion (2b).
A fan assembly, characterized in that the fan assembly (900) comprises the fan cover (92) according to any one of claims 1 to 9.