CN220368952U - Cooling fan fixing device and automobile electronic product - Google Patents

Abstract

The utility model belongs to the technical field of electronic product heat dissipation, and particularly relates to a cooling fan fixing device and an automobile electronic product, wherein the cooling fan fixing device comprises a damping sleeve, a lower shell and an upper cover plate, the damping sleeve is sleeved outside a cooling fan, the top of the damping sleeve is provided with an outwards extending fixing piece, and the fixing piece is an elastic material piece; the lower shell is internally provided with an installation groove for installing the damping sleeve, and the side wall of the installation groove is provided with a clamping groove matched with the fixing piece in a clamping way; the upper cover plate is buckled with the lower shell in a sealing way, a bulge is formed on one surface of the upper cover plate, facing the lower shell, of the upper cover plate, and the bulge corresponds to the fixing piece one by one and is matched with the fixing piece in an extrusion mode. The damping sleeve is fixed through the fixing piece, the clamping groove and the bulge, so that the contact position of the bulge of the upper cover plate and the damping sleeve is changed, and the bulge of the upper cover plate is prevented from directly applying larger pressure to the middle part of the cooling fan to fix due to the fact that the fixing piece extends outwards, and therefore the normal work of the cooling fan is prevented from being influenced.

Description

Cooling fan fixing device and automobile electronic product

Technical Field

The utility model belongs to the technical field of heat dissipation of electronic products, and particularly relates to a cooling fan fixing device and an automobile electronic product.

Background

The automobile electronic product comprises a host, a power amplifier, an ECU and the like, and a plurality of components such as chips and the like have a plurality of power consumption in work, so that the product can normally work at high temperature, the service life and the reliability are ensured, the product needs to be timely cooled, and a cooling fan needs to be arranged for the product with higher power to cool and dissipate heat. Because the automobile electronic product has higher requirements on noise, the cooling fan fixing device not only needs to have a fixing function but also needs to have a damping function so as to realize noise reduction on the automobile electronic product.

In the prior art, the rubber damping sleeve is used for fixing and damping. The automobile electronic product comprises a lower shell and an upper cover plate, wherein the lower shell is provided with a mounting groove for mounting the cooling fan, the upper cover plate is correspondingly provided with a bulge for pressing the cooling fan, and the specific mounting process is as follows: firstly, the rubber damping sleeve is sleeved outside the cooling fan and fixed in the mounting groove of the shell, and then the cover plate is mounted and the middle part of the bulge compacting damping sleeve is ensured to be fixed. For the above scheme, since the middle part of the cooling fan is fragile, when the protrusion on the upper cover plate is pressed on the middle part of the cooling fan, a large pressure may be generated, resulting in that the cooling fan cannot work normally.

Disclosure of Invention

The utility model mainly aims to provide a cooling fan fixing device and an automobile electronic product, and aims to solve the technical problem that the cooling fan cannot work normally due to the fact that the upper cover plate bulges press the middle of the fan to generate larger pressure in the prior art.

In order to achieve the above object, the present utility model provides a cooling fan fixing device comprising:

the damping sleeve is sleeved outside the cooling fan, a vent is formed in the side wall of the damping sleeve along the exhaust direction of the cooling fan, a fixing piece extending outwards is arranged at the top of the damping sleeve, and the fixing piece is an elastic material piece;

a lower shell, wherein an installation groove for installing the damping sleeve is formed in the lower shell, and a clamping groove matched with the fixing piece in a clamping way is formed in the side wall of the installation groove; and

the upper cover plate is buckled with the lower shell in a sealing way, a protrusion is formed on one surface of the upper cover plate, which faces the lower shell, and the protrusions are in one-to-one correspondence with the fixing pieces and are in extrusion fit.

In an embodiment of the utility model, the damping sleeve is of a cube structure and is made of elastic materials, the damping sleeve comprises two second side walls, a top wall close to the upper cover plate, a bottom wall close to the bottom of the mounting groove and two first side walls provided with the ventilation openings, and the fixing piece is arranged at one end of the second side wall close to the top wall.

In the embodiment of the utility model, a plurality of damping ribs are arranged on the second side wall, the top wall and the bottom wall, the damping ribs are made of elastic materials and protrude from the wall surface, and the walls of the lower shell, the upper cover plate and the mounting groove are in clearance fit with the damping ribs.

In an embodiment of the present utility model, two shock-absorbing ribs are disposed on the second side wall, the top wall and the bottom wall at intervals, and a connecting member is disposed between two adjacent shock-absorbing ribs on any adjacent wall surface.

In the embodiment of the utility model, the number of the fixing pieces is two, the fixing pieces are respectively arranged on the two second side walls, the fixing pieces are of columnar structures, a first groove is formed in the top of the connecting part of the fixing pieces and the second side walls, and the first groove penetrates and extends along the width direction of the fixing pieces.

In an embodiment of the present utility model, a second groove is formed on the top surface of the fixing element, and the second groove extends through along the length direction of the fixing element.

In an embodiment of the utility model, a guiding fillet is formed at the connection part of the bottom surface and the side surface of the fixing piece.

In the embodiment of the utility model, the connection parts of the two second side walls, the top wall and the bottom wall form round guide angles, and the second side walls are provided with process grooves.

In an embodiment of the utility model, the top wall is provided with a threading hole for a line of the cooling fan to pass through.

In an embodiment of the present utility model, there is also provided an automotive electronic product including the cooling fan and the cooling fan fixing device as described above.

Through the technical scheme, the cooling fan fixing device provided by the embodiment of the utility model has the following beneficial effects:

the damping sleeve sleeved outside the cooling fan is used for preventing the cooling fan from directly contacting with the lower shell and the lower cover plate, so that vibration transmitted to the lower shell and the lower cover plate by the cooling fan in the working process is reduced, and the effect of reducing noise is achieved; the damping sleeve is fixed through the fixing piece, the clamping groove and the bulge, so that the contact position of the bulge of the upper cover plate and the damping sleeve is changed, and the fixing piece extends outwards, so that the bulge of the upper cover plate is prevented from directly applying larger pressure to the middle part of the cooling fan to fix the cooling fan, the normal work of the cooling fan is prevented from being influenced, the heat dissipation efficiency of the automobile electronic product is further guaranteed, and the noise reduction standard of the automobile electronic product is achieved.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide an understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a schematic view of a damping sleeve according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of the lower housing according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an upper cover plate according to an embodiment of the utility model;

fig. 4 is a schematic structural diagram of an automotive electronic product according to an embodiment of the utility model.

Description of the reference numerals

Detailed Description

Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present utility model.

A cooling fan fixing apparatus and an automotive electronic product according to the present utility model are described below with reference to the accompanying drawings. The automobile electronic product comprises an automobile electronic control device and an on-board automobile electronic device, and can be specifically an on-board computer, automobile navigation equipment, automobile tire pressure monitoring equipment and the like.

As shown in fig. 1 to 3, in the embodiment of the present utility model, the cooling fan fixing device includes a damping sleeve 3, a lower housing 2 and an upper cover plate, wherein the damping sleeve 3 is sleeved outside the cooling fan 14, a ventilation opening is provided on a side wall of the damping sleeve 3 along an exhaust direction of the cooling fan 14, a fixing member 4 extending outwards is provided on a top of the damping sleeve 3, and the fixing member 4 is an elastic material member; a mounting groove 5 for mounting the damping sleeve 3 is formed in the lower shell 2, and a clamping groove 6 matched with the fixing piece 4 in a clamping way is formed in the side wall of the mounting groove 5; the upper cover plate 1 is buckled with the lower shell 2 in a sealing way, a protrusion 7 is formed on one surface of the upper cover plate 1 facing the lower shell 2, and the protrusions 7 are in one-to-one correspondence with the fixing pieces 4 and are matched with the fixing pieces in an extrusion mode.

Specifically, the damping sleeve 3 sleeved outside the cooling fan 14 is used for preventing the cooling fan 14 from directly contacting the lower shell 2 and the upper cover plate 1, so that vibration transmitted to the lower shell 2 and the upper cover plate 1 by the cooling fan 14 in the working process is reduced, and the effect of noise reduction is achieved; and, fix the damping sleeve 3 through setting up mounting 4, joint groove 6 and protruding 7 to change the protruding 7 of upper cover plate 1 and damping sleeve 3's contact position, and because mounting 4 outwards extends, consequently avoid protruding 7 of upper cover plate 1 directly to apply great pressure to cooling fan 14 middle part and fix, thereby avoid influencing cooling fan 14's normal work, and then guarantee the radiating efficiency of automobile electronics 100 and reach automobile electronics 100's standard of making an uproar falls.

Further, the damping sleeve 3 is of a cubic structure and is made of elastic materials, and the damping effect on the cooling fan 14 is further improved through the self elasticity of the damping sleeve 3.

To better illustrate the structure, the following settings were made: the air inlet end of the cooling fan 14 faces backward, the air outlet end of the cooling fan 14 faces forward, and the air exhaust direction of the cooling fan 14 is the front-rear direction; the upper cover plate 1 is located above the cooling fan 14, the lower casing 2 is located below the cooling fan 14, and the direction perpendicular to the cooling fan 14 in the horizontal plane is the left-right direction.

In the embodiment of the present utility model, the damping sleeve 3 includes two second side walls, a top wall near the upper cover plate 1, a bottom wall near the bottom of the installation groove 5, and two first side walls provided with ventilation openings, and the fixing member 4 is disposed at one end of the second side walls near the top wall. The two first side walls are respectively a front side wall and a rear side wall of the damping sleeve 3, and the two second side walls are respectively a left side wall and a right side wall of the damping sleeve 3.

Specifically, the front side wall of the installation groove 5 is provided with an exhaust grid corresponding to the cooling fan 14, and the rear side wall of the installation groove 5 is provided with an air inlet, so that the heat dissipation function of the cooling fan 14 is ensured. The left side wall and the right side wall of the mounting groove 5 are respectively provided with a clamping groove 6 corresponding to the fixing piece 4, the notch is upward, and the fixing piece 4 is pressed downwards through the bulge 7 of the upper cover plate 1 to fix the damping sleeve 3.

Further, a plurality of damping ribs 8 are arranged on the second side wall, the top wall and the bottom wall of the damping sleeve 3, the damping ribs 8 are made of elastic materials and protrude out of the wall surface, and the groove walls of the lower shell 2, the upper cover plate 1 and the mounting groove 5 are in clearance fit with the damping ribs 8. After the upper cover plate 1 and the lower shell 2 are buckled in a sealing way and the bulge 7 at the bottom of the upper cover plate 1 is matched with the fixing piece 4 in an extrusion way, the groove walls of the lower shell 2, the upper cover plate 1 and the mounting groove 5 can be contacted with the shock absorption ribs 8 when the automobile fluctuates through the shock absorption ribs 8, and the shock absorption effect of the shock absorption sleeve 3 is further improved by utilizing the elasticity of the shock absorption ribs 8; the provision of the damper rib 8 also reduces the collision of the cooling fan 14 with the lower case 2, the upper cover plate 1 and the walls of the mounting groove 5 due to the fluctuation of the automotive electronics 100, thereby extending the service life of the cooling fan 14.

In the embodiment of the present utility model, the preferred scheme of the shock-absorbing rib 8 is as follows: two damping ribs 8 are arranged on the second side wall, the top wall and the bottom wall at intervals, and connecting pieces are arranged between the two adjacent damping ribs 8 on any adjacent wall surface.

Specifically, the top wall, the bottom wall, the left side wall and the right side wall of the damping sleeve 3 are respectively provided with two damping ribs 8, the two damping ribs 8 on the wall surface are parallel, all the damping ribs 8 extend along the front-back direction, the front ends of the damping ribs 8 extend forward to the front wall surface, and the rear ends of the damping ribs 8 extend backward to the rear wall surface. The stability of the cooling fan 14 is ensured by the shock absorbing ribs 8 being uniformly arranged on each wall surface and the length of the shock absorbing ribs 8 being equal to the length of the shock absorbing sleeve 3 in the front-rear direction, so that the stability of the cooling fan is ensured by the shock absorbing sleeve 3 and the wall of the mounting groove 5.

Further, two damping ribs 8 located on the same wall surface are respectively arranged close to two ends of the wall surface, the connecting piece is made of an elastic material and is an L-shaped rib 9, and the L-shaped rib 9 is respectively connected with the two adjacent damping ribs 8 on the adjacent wall surface through the two ends of the L-shaped rib 9, so that the two damping ribs 8 and the two L-shaped ribs 9 form a whole, and the transverse strength of the damping ribs 8 is increased.

In the embodiment of the utility model, the number of the fixing pieces 4 is two, the fixing pieces 4 are respectively arranged on the two second side walls, the fixing pieces 4 are of columnar structures, the top of the connecting part of the fixing piece 4 and the second side walls is provided with the first groove 10, and the first groove 10 penetrates and extends along the width direction of the fixing piece 4.

Specifically, the two fixing pieces 4 are respectively arranged on the left side wall and the right side wall, the fixing piece 4 of the left side wall extends leftwards, the fixing piece 4 of the right side wall extends rightwards, and the fixing piece 4, the damping ribs 8 and the damping sleeve 3 are integrally manufactured into a piece. Since the fixing member 4 and the damping sleeve 3 are made of elastic materials, the position of the damping sleeve 3 is affected when the protrusion 7 extrudes the fixing member 4 by arranging the first groove 10, that is, the fixing member 4 is separated from the damping sleeve 3 to a certain extent.

Further, the top surface of the fixing member 4 is provided with a second groove 11, and the second groove 11 extends through along the length direction of the fixing member 4. The second groove 11 penetrates the fixing member 4 in the left-right direction and communicates with the first groove 10. The strength of the top surface of the fixing member 4 is weakened by providing the second groove 11 and the first groove 10, so that the fixing member 4 is more easily deformed to exert a shock absorbing effect, and the influence on the position of the shock absorbing sleeve 3 is further reduced.

In the embodiment of the utility model, the connection part of the bottom surface and the side surface of the fixing piece 4 is provided with a guiding fillet, and the connection parts of the two second side walls and the top wall and the bottom wall are provided with rounded guiding fillets. The assembly of the damping sleeve 3 is facilitated by arranging the round guide angle, and the stability of the damping sleeve 3 is improved; the assembly of the fixing member 4 is facilitated by providing the guide rounded corners, and the stability of the fixing member 4 is increased.

In an embodiment of the present utility model, the second sidewall is provided with a process tank 12. The cooling fan 14 is installed with a direction requirement, when the cooling fan is installed, the air outlet end is required to be aligned with the air exhaust grid, namely, the front side wall is close to the air exhaust grid, the two process grooves 12 are respectively formed in the middle of the left side wall and the right side wall, the openings of the two process grooves are forward, and the damping sleeve 3 is conveniently sleeved on the cooling fan 14 through the process grooves 12, so that the assembly speed is increased. And, set up the through wires hole 13 at the roof, the through wires hole 13 is used for the circuit of cooling fan 14 to pass, and the through wires hole 13 position can set up according to actual demand.

As shown in fig. 4, in an embodiment of the present utility model, there is also provided an automotive electronics product 100 including a cooling fan 14 and a cooling fan fixture. Since the automotive electronics 100 employs all of the embodiments of the cooling fan fixture described above, it has all of the benefits that the cooling fan fixture provides.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A cooling fan fixing device, characterized by comprising:

the damping sleeve (3) is sleeved outside the cooling fan (14), a vent is formed in the side wall of the damping sleeve (3) along the exhaust direction of the cooling fan (14), a fixing piece (4) extending outwards is arranged at the top of the damping sleeve (3), and the fixing piece (4) is an elastic material piece;

a lower shell (2) is internally provided with an installation groove (5) for installing the damping sleeve (3), and the side wall of the installation groove (5) is provided with a clamping groove (6) which is matched with the fixing piece (4) in a clamping way; and

the upper cover plate (1) is buckled with the lower shell (2) in a sealing way, a protrusion (7) is formed on one surface of the upper cover plate (1) towards the lower shell (2), and the protrusions (7) are in one-to-one correspondence with the fixing pieces (4) and are in extrusion fit.

2. Cooling fan fixing device according to claim 1, characterized in that the damping sleeve (3) is of a cubic structure and is made of an elastic material, the damping sleeve (3) comprises two second side walls, a top wall close to the upper cover plate (1), a bottom wall close to the bottom of the mounting groove (5) and two first side walls provided with the ventilation openings, and the fixing piece (4) is arranged at one end of the second side walls close to the top wall.

3. The cooling fan fixing device according to claim 2, wherein a plurality of damping ribs (8) are respectively arranged on the second side wall, the top wall and the bottom wall, the damping ribs (8) are made of elastic materials and protrude from the wall surface, and the lower shell (2), the upper cover plate (1) and the groove walls of the mounting groove (5) are in clearance fit with the damping ribs (8).

4. Cooling fan fixing device according to claim 2, characterized in that two damping ribs (8) are arranged on the second side wall, the top wall and the bottom wall at intervals, and a connecting piece is arranged between two adjacent damping ribs (8) on any adjacent wall surface.

5. The cooling fan fixing device according to claim 4, wherein the number of the fixing pieces (4) is two, the fixing pieces (4) are respectively arranged on the two second side walls, the fixing pieces (4) are of columnar structures, a first groove (10) is formed in the top of the joint of the fixing pieces (4) and the second side walls, and the first groove (10) penetrates and extends along the width direction of the fixing pieces (4).

6. The cooling fan fixing device according to claim 5, wherein the top surface of the fixing member (4) is provided with a second groove (11), and the second groove (11) extends through in the length direction of the fixing member (4).

7. Cooling fan fixing device according to claim 5, characterized in that the connection of the bottom surface and the side surfaces of the fixing element (4) is formed with guiding fillets.

8. Cooling fan fixing device according to any of claims 2 to 7, characterized in that the connection of the two second side walls with the top and bottom walls each form a rounded chamfer, the second side walls being provided with a process groove (12).

9. Cooling fan fixing device according to any of claims 2 to 7, characterized in that the top wall is provided with a threading hole (13), the threading hole (13) being used for the passage of the line of the cooling fan (14).

10. Automotive electronics product, characterized by comprising a cooling fan (14) and a cooling fan fixing device according to any of claims 1 to 9.