CN115727014A

CN115727014A - Air supply device and electric product

Info

Publication number: CN115727014A
Application number: CN202111014000.3A
Authority: CN
Inventors: 马强; 杨逢文
Original assignee: Nidec Corp
Current assignee: Nidec Corp
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2023-03-03

Abstract

The application provides an air supply device and an electric product. The air supply device comprises: a fan having a housing with a recess; a housing having a first through hole; and the lock catch is detachably connected with the shell and the shell, the lock catch comprises a protruding part, a positioning part and a connecting part, the connecting part is connected between the protruding part and the positioning part, the connecting part extends along a first direction, the protruding part and the positioning part extend in a direction perpendicular to the first direction, when the lock catch is connected with the shell and the shell, the protruding part is located in the concave part, the connecting part is at least partially located in the first through hole, at least one part of the shell and at least one part of the shell are directly or indirectly abutted, and are clamped between the protruding part and the positioning part in the first direction.

Description

Air supply device and electric product

Technical Field

The application relates to the technical field of air supply, in particular 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 extensive, for example, the air supply device can be applied to the fields of consumer electronics, computers, refrigeration equipment, automobiles and the like. In the related art, a blower device is provided with a fan and a casing having an air duct formed therein, and the fan is usually fixed to the casing by means of screws or the like.

It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.

Disclosure of Invention

The inventor finds that when the corresponding position of the fan and the housing is fixed by the screw, the screw is easy to loosen along with the rotation of the fan, and the fan cannot be reliably fixed; the fan cannot be conveniently mounted or dismounted because the screws need to be screwed or unscrewed by using a special tool; in addition, a part for passing or fixing a screw is generally required to be provided on the outer periphery of the fan, which results in that, on one hand, a large amount of material is required to be used in the manufacturing process of the fan, and on the other hand, the fan cannot be miniaturized.

In order to solve at least one of the above problems or other similar problems, embodiments of the present application provide an air supply device in which a fan and a housing are connected by a latch, thereby enabling the fan in the air supply device to be conveniently assembled or disassembled and enabling the fan to be miniaturized, and an electric product.

According to an aspect of an embodiment of the present application, there is provided an air blowing device including:

a fan having a housing with a recess;

a housing having a first through hole; and

a latch detachably connected with the case and the housing,

the lock catch comprises a protruding part, a positioning part and a connecting part,

the connecting portion is connected between the protruding portion and the positioning portion,

the connecting portion extends in a first direction,

the protruding portion and the positioning portion extend in a direction perpendicular to the first direction,

when the lock catch is connected with the shell and the shell, the protruding part is positioned in the concave part, the connecting part is at least partially positioned in the first through hole,

at least a part of the housing and at least a part of the case are in direct or indirect abutment, and are sandwiched between the protruding portion and the positioning portion in the first direction.

According to another aspect of an embodiment of the present application, wherein,

the shape of the protrusion is semicircular, triangular or quadrangular in a cross section along the first direction.

the projection has a dimension in the second direction larger than a dimension in the third direction on a plane perpendicular to the first direction.

the recess has:

a wall portion; and

a lateral projection projecting from the wall portion toward the inside of the recess,

in the first direction, a surface of the lateral protruding portion away from the housing abuts against the protruding portion.

the corner of the lateral protrusion facing the inside of the recess is a chamfered angle.

the positioning part is provided with a groove part on the surface far away from the protrusion part.

the positioning portion is disk-shaped as viewed in the first direction.

the positioning portion has a locking portion protruding radially outward at a peripheral edge thereof.

the locking parts are in a protruding angular shape,

the two horny sides are asymmetrically arranged relative to a connecting line between the horn-shaped top point and the circle center of the disc.

the two angular sides comprise a first side and a second side,

the second side is located on a downstream side of the first side in a first rotational direction of the positioning portion,

the included angle between the connecting line from the angular vertex to the circle center of the disc and the first edge is a first angle,

the included angle between the connecting line from the angular vertex to the circle center of the disc and the second edge has a second angle,

the first angle is less than the second angle.

one surface of the shell far away from the shell is provided with a clamping part,

the engaging portion engages with a radially outer end portion of the locking portion.

the clamping part is an angular groove.

the air supply device further comprises a gasket, and the gasket is arranged between the shell and the shell.

According to another aspect of the embodiments of the present application, there is provided an electric product including the air blowing device of any one of the above-described embodiments.

One of the beneficial effects of the embodiment of the application lies in: the fan in the air supply device can be conveniently assembled or disassembled, and the fan is miniaturized.

Specific embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope. The embodiments of the application 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 the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is an exploded schematic view of an air blowing device according to embodiment 1 of the present application;

fig. 2 is a schematic view of an air blowing device according to embodiment 1 of the present application;

FIG. 3 is a schematic view of an air blower according to embodiment 1 of the present application, with the stator, rotor, etc. of the fan removed;

FIG. 4 isbase:Sub>A sectional view taken along the line A-A' of FIG. 3;

FIG. 5 is a perspective view corresponding to FIG. 3;

FIG. 6 is a sectional view taken along the direction B-B' of FIG. 5;

fig. 7 is another schematic view of an air blowing device according to embodiment 1 of the present application;

fig. 8 is an enlarged schematic view of the region 7A of fig. 7.

Detailed Description

The foregoing and other features of the present application will become apparent from the following description, taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the application are disclosed in detail as being indicative of some of the embodiments in which the principles of the application may be employed, it being understood that the application is not limited to the embodiments described, 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 sized to be recognizable on the drawing surface, and therefore the scale is different for each component, and the present application is not limited to the number of components, the shapes of components, the ratio of the sizes of components, and the relative positional relationship of components described in these drawings.

In the embodiments of the present application, the terms "first", "second", and the like are used for distinguishing different elements by reference, but do not denote a spatial arrangement, a temporal order, or the like 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 "comprising," "including," "having," and the like, refer to the presence of stated features, elements, components, and do not preclude the presence or addition of one or more other features, elements, components, and elements.

In the embodiments of the present application, the singular forms "a", "an", and the like include the plural forms and are to be construed broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "comprising" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Furthermore, the term "according to" should be understood to be at least partially according to … … "and the term" based on "should be understood to be at least partially based on … …" unless the context clearly dictates otherwise.

In the embodiment of the present application, the extending direction of the connecting portion of the lock catch is a "first direction"; in the "first direction", a direction from the casing of the fan toward the housing is a "down" direction, and a direction opposite to the "down" direction is an "up" direction.

Example 1

The embodiment of the application provides an air supply device. Fig. 1 is an exploded schematic view of an air supply device according to embodiment 1 of the present application, fig. 2 isbase:Sub>A schematic view of the air supply device according to embodiment 1 of the present application, fig. 3 isbase:Sub>A schematic view of the air supply device 1 according to embodiment 1 of the present application withbase:Sub>A stator,base:Sub>A rotor, and the like ofbase:Sub>A fan 11 removed, fig. 4 isbase:Sub>A cross-sectional view viewed inbase:Sub>A directionbase:Sub>A-base:Sub>A 'of fig. 3, fig. 5 isbase:Sub>A perspective schematic view corresponding to fig. 3, and fig. 6 isbase:Sub>A cross-sectional view viewed inbase:Sub>A direction B-B' of fig. 5.

In the present embodiment, the air blowing device 100 includes: fan 1, housing 2 and latch 3.

The fan 1 has a housing 11, and the housing 11 has a recess 111. In fig. 4, the recess 111 is a through hole penetrating the housing 11, but the present invention is not limited thereto, and for example, the recess 111 may not penetrate the housing 11.

The housing 2 has a first through hole 21, and the first through hole 21 penetrates the housing 2. As shown in fig. 2 and 4, the housing 2 may have a wind tunnel 22, thereby guiding the flow direction of the wind blown out from the fan 1.

The latch 3 is detachably connected with the cabinet 11 and the housing 2.

As shown in fig. 4, the buckle 3 includes: a protrusion 31, a positioning portion 32, and a connecting portion 33. The connecting portion 33 is connected between the protruding portion 31 and the positioning portion 32. The connection portion 33 extends in the first direction D1, and the protrusion portion 31 and the positioning portion 32 extend in a direction perpendicular to the first direction D1.

As shown in fig. 4, when the latch 3 is connected to the housing 11 and the casing 2, the protrusion 31 is located in the recess 111 of the housing 11, and the connection 33 is at least partially located in the first through hole 21. At least a part of the housing 11 and at least a part of the housing 2 are in direct or indirect contact with each other, and are sandwiched between the protruding portion 31 and the positioning portion 32 in the first direction D1. For example, when a gasket 4 described later is provided between the housing 11 and the housing 2, at least a part of the housing 11 and at least a part of the housing 2 indirectly contact each other with the gasket 4 interposed therebetween. For another example, when the spacer 4 is not provided between the housing 11 and the housing 2, at least a part of the housing 11 and at least a part of the housing 2 directly abut against each other.

According to embodiment 1, in the air blowing device 100, the fan 1 and the housing 2 are connected by the lock catch 3, whereby the air blowing device 100 can be easily assembled and disassembled, and there is no need to provide a member for passing or fixing a screw on the outer periphery of the fan 1, so that the fan can be miniaturized.

As shown in fig. 4, the projection 31 has a quadrangular shape in a cross section taken along the first direction D1. Further, the present embodiment may not be limited thereto, and for example, the shape of the protrusion 31 is a semicircle or a triangle or other shape in a cross section along the first direction D1.

As shown in the enlarged partial view of fig. 1, in a plane perpendicular to the first direction D1, the dimension of the protruding portion 31 of the latch 3 in the second direction D2 is larger than the dimension in the third direction D3, so that after the protruding portion 31 of the latch 3 enters the concave portion 111 of the housing 11, the latch 3 is rotated about the extending direction of the connecting portion 33 (i.e., the first direction D1), and the portion of the protruding portion 31 of the latch 3 extending in the third direction D3 can be engaged with the step in the concave portion 111, so that the latch 3 is in the locked state. The second direction D2 of each shackle 3 may be different, and the third direction D3 of each shackle 3 may also be different.

As shown in fig. 4, the recess 111 has: a wall portion 1111 and a lateral projection 1112. The lateral protrusions 1112 protrude from the wall portion 1111 toward the inside of the recess 111, for example, the lateral protrusions 1112 protrude from the wall portion 1111 toward the inside of the recess 111 in a direction perpendicular to the first direction D1. In the first direction D1, a surface of the lateral protrusion 1112 distant from the housing 2 abuts the protrusion 31 of the latch 3.

As shown in fig. 6, a corner 1112b of the lateral protrusion 1112 facing the inside of the recess 111 is a chamfered angle. This chamfer can thereby facilitate guiding the latch 3 to rotate to a position where the protrusion 31 abuts against the lateral protrusion 1112 when the latch 3 rotates.

Fig. 7 is another schematic view of the air blower according to embodiment 1 of the present application, and shows a configuration of the air blower 100 as viewed from the side of the positioning portion 32 of the lock catch 3. Fig. 8 is an enlarged schematic view of the region 7A of fig. 7.

As shown in fig. 8, the positioning portion 32 has a groove portion 320 on a surface thereof away from the protrusion portion 31 (not shown in fig. 8). The groove 320 can accommodate the end of the attachment/detachment tool, and thus the latch 3 can be rotated by rotating the attachment/detachment tool when the end of the attachment/detachment tool is inserted into the groove 320.

The positioning portion 32 has a disk shape as viewed in the first direction D1, for example, as viewed from the lower side to the upper side.

As shown in fig. 8, the positioning portion 32 has a locking portion 321 protruding radially outward at a peripheral edge thereof, the engagement portion 112 is provided on the surface 2A of the housing 2 away from the housing 11, and the engagement portion 112 is engageable with a radially outer end portion of the locking portion 321, so that the latch 3 can be fixed in the rotational direction, the latch 3 can be held at the locked position, and the latch 3 can be prevented from rotating to the unlocked position due to vibration or the like during use of the blower 100.

For example, the first rotation direction shown in fig. 8 is S1, and the second rotation direction is S2, where the first rotation direction S1 is a clockwise rotation direction when viewed from the lower direction and the upper direction, and the second rotation direction S2 is a counterclockwise rotation direction; when the protrusion 31 of the latch 3 is inserted into the recess 111 of the housing 11, the positioning mark 322 of the positioning portion 32 is located at the position indicated by the broken line triangle in fig. 8, then the end of the attachment/detachment tool is inserted into the groove portion 320, the attachment/detachment tool is rotated in the first rotation direction S1, thereby rotating the latch 3 until the locking portion 321 of the positioning portion 32 engages with the engaging portion 112, and the positioning mark 322 is located at the position indicated by the solid line triangle in fig. 8, the rotation of the attachment/detachment tool is stopped, thereby the latch 3 is held at the locked position, and the fan 1, the housing 2, and the latch 3 are mounted together; when unlocking is required, the end of the attachment/detachment device is inserted into the groove 320, the attachment/detachment device is rotated in the first rotation direction S1, the latch 3 is rotated, the locking portion 321 of the positioning portion 32 is disengaged from the engaging portion 112, and when the positioning mark 322 reaches a position indicated by a dashed-dotted triangle in fig. 8 (i.e., a position facing the unlocking mark 22 on the housing 2), the latch 3 is in the unlocked position, and at this time, the latch 3 can be pulled out from the recess 111 of the housing 11 and the first through-hole 21 of the housing, whereby the fan 1, the housing 2, and the latch 3 can be detached.

As shown in fig. 8, the locking portion 321 may have a protruding angular shape in which two sides L1 and L2 are asymmetrically disposed with respect to a line L connecting an apex O of the angular shape and a center C of the disc. Thus, when the locking portion 321 is in the state of being engaged with the engaging portion 112, the lock catch 3 rotates in the first rotating direction S1 and rotates in the second rotating direction S2 with different resistances, so as to guide the user to rotate the lock catch 3 in the same direction and avoid reversely rotating the lock catch 3.

As shown in fig. 8, the two angular sides of the locking portion 321 include a first side L1 and a second side L2. The second side L2 is located on the downstream side of the first side L1 in the first rotational direction S1 (e.g., counterclockwise rotational direction in fig. 8) of the positioning portion 321. The included angle between the first side L1 and the connecting line L is a first angle a1 (not shown), the included angle between the second side L2 and the connecting line L is a second angle a2, the first angle a1 is smaller than the second angle a2, for example, a1 is 0 ° to 10 °, and a2 is 30 ° to 60 °. From this, the rotatory resistance that receives along first direction of rotation S1 of hasp 3 is less than the rotatory resistance that receives along second direction of rotation S2, like this, can be convenient for rotate hasp 3 along first direction of rotation S1, avoids hasp 3 reverse rotation.

As shown in fig. 8, the engaging portion 112 may be a recess 112a recessed in an angular shape, and the recess 112a may correspond to the angular shape of the locking portion 321, whereby the locking portion 321 can engage with the engaging portion 112. For example, a side of the groove of the engaging portion 112 opposite to the second side L2 is L3, an included angle between L3 and the connecting line L may have a third angle a3, and the third angle a3 may be close to the second angle a2, for example, a3 is 30 ° to 60 °; the guiding edge outside the groove of the engaging portion 112 is L4, L4 may be located on the upstream side of the groove in the first rotating direction S1, the second edge L2 may abut against L4 before the locking portion 321 is not engaged with the engaging portion 112, and L4 may guide the second edge L2 into the groove of the engaging portion 112, an angle between L4 and the connecting line L may have a fourth angle a4, and a4 may be greater than a3, for example, a4 is 50 ° to 80 °. By providing the angle a4, it is possible to facilitate the guiding of the locking portion 321 into the groove 112a of the engaging portion 112, and to guide the rotation of the latch 3 in the case where the latch 3 continues to be rotated in the first rotation direction S1.

The number of the locking portions 321 is 2, and the locking portions are provided at equal intervals on the circumference of the disc-shaped positioning portion 32. In addition, the number of the locking portions 321 may be other, for example, 1 or 3 or more. The number of the engaging portions 112 is the same as that of the locking portions 321.

As shown in fig. 1 and 4, the air blowing device 100 may further include a gasket 4. The gasket 4 is disposed between the cabinet 11 and the housing 2. The gasket 4 may have elasticity. The gasket 4 can buffer the vibration between the casing 11 and the housing 2, and reduce the noise generated when the air blowing device operates.

According to embodiment 1, in the air blowing device 100, the fan 1 and the housing 2 are connected by the lock catch 3, whereby the air blowing device 100 can be easily assembled and disassembled, and it is not necessary to provide a member for inserting or fixing a screw on the outer periphery of the fan 1, so that the fan can be miniaturized.

Example 2

Embodiment 2 of the present application provides an electric product having the air blowing device 100 described in embodiment 1. The electrical product may be, for example, a refrigeration device or the like.

In embodiment 1, the configuration of the air blowing device 100 has been described in detail, and the contents thereof are incorporated herein, and the description thereof is omitted here.

According to embodiment 2 of the present application, in the blower device 100 of the electric apparatus, the fan 1 and the housing 2 are connected by the lock catch 3, whereby the blower device 100 can be easily assembled or disassembled, and since there is no need to provide a member for passing or fixing a screw on the outer periphery of the fan 1, the fan can be miniaturized; further, the assembling or disassembling of the electric product can be facilitated, and the electric product can be miniaturized.

The present application has been described in conjunction with specific embodiments, but it should be understood by those skilled in the art that these descriptions are intended to be illustrative, and not limiting. Various modifications and adaptations of the present application may occur to those skilled in the art based on the spirit and principles of the application and are within the scope of the application.

Claims

1. An air supply device, characterized in that the air supply device comprises:

a fan having a housing with a recess;

a housing having a first through hole; and

a latch detachably connected with the case and the housing,

the connecting portion extends in a first direction,

2. The air supply arrangement as recited in claim 1,

3. The air supply arrangement as recited in claim 1,

4. The air supply arrangement as recited in claim 1,

the recess has:

a wall portion; and

5. The air supply arrangement as recited in claim 4,

6. The air supply arrangement as recited in claim 1,

7. The air supply arrangement as recited in claim 1,

the positioning portion is disk-shaped as viewed in the first direction.

8. The air supply arrangement as recited in claim 7,

9. The air supply arrangement as recited in claim 8,

the locking parts are in a protruding angular shape,

10. The air supply arrangement as recited in claim 9,

the two angular sides comprise a first side and a second side,

the first angle is less than the second angle.

11. The air supply apparatus according to any one of claims 8 to 10,

12. The air supply arrangement as recited in claim 11,

the clamping part is an angular groove.

13. The blowing device of claim 1,

14. An electric product characterized by comprising the air blowing device according to any one of claims 1 to 13.