CN200983133Y - Fixing mechanism for fan frame - Google Patents

Abstract

A fixing mechanism for fan frame is used to fix the fan frame with multiple heat radiation fans on the chassis bottom plate of electronic device, at least one side of the fan frame is fixed on the chassis bottom plate by fixing device, wherein, the fixing device includes a fixing sheet fixed on the chassis bottom plate and a locking sheet vertically arranged on the fixing sheet for fixing the fan frame, the locking sheet has a first locking part; the fan frame is provided with a buckling stop spring sheet opposite to the buckling stop sheet, the buckling stop spring sheet is provided with a second buckling stop part which can be buckled at the first buckling stop part, and an elastic buffer piece is sleeved between the first buckling stop part and the second buckling stop part, so that the elastic buffer piece reduces the vibration generated by the operation of the heat dissipation fan.

Description

Fixing mechanism for fan frame

technical field

The utility model relates to a fixing mechanism, in particular to a fixing mechanism for a fan frame.

Background technique

Most servers dissipate heat by running cooling fans. However, cooling fans used in servers are mostly installed in fan frames to form a cooling fan group with strong air flow.

The fan frame with multiple cooling fans is mostly locked on the bottom plate of the server case with screws, and a fixing device in the form of a bent sheet can be provided on both sides of the fan frame, and the fixing device can be combined with the fan at one bent end The frame, and the other bent end is locked on the bottom plate of the chassis by screws. However, when the cooling fan is running, it will vibrate and make noise. In order to solve the problem of noise and vibration, the easiest way is to lock the An elastic washer is pre-sleeved on the screw attached to the bottom plate of the casing and then locked, so that the elastic washer absorbs shock and reduces the generation of noise.

However, the ring of the elastic washer on the screw will affect the locking effect of the screw, and the screw may become loose due to the insufficient number of attached screw buds. In this way, relative vibration will be generated due to the loosening of the screw on the chassis bottom plate. noise.

In addition, the elastic washer has been compressed to a smaller thickness by the strong extrusion of the screw, so the range that can absorb vibrations is also reduced, and the elastic washer is prone to elastic fatigue under long-term strong extrusion.

Therefore, how to improve the above shortcomings is an urgent problem to be considered today.

Utility model content

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a fixing mechanism for a fan frame, which has a good shock-absorbing effect.

Another object of the present invention is to provide a fixing mechanism for the fan frame, so that the existing shock absorbing material has high durability.

Another object of the present invention is to provide a fixing mechanism for a fan frame, which has both shock-absorbing effect and high stability.

In order to achieve the above object, the utility model provides a fixing mechanism for a fan frame, which is used to fix the fan frame equipped with a plurality of cooling fans on the bottom plate of the case of the electronic device, at least one side of the fan frame is fixed by The device is fixed on the bottom plate of the casing, and it is characterized in that the fixing device includes a fixing piece fixed on the bottom plate of the casing, and a buckling piece vertically arranged on the fixing piece for fixing the fan frame, wherein the buckling The sheet has a first buckle part; the fan frame is provided with a buckle elastic piece opposite to the buckle piece, and the buckle elastic piece has a second buckle part combined with the first buckle part, and the second buckle An elastic buffer is sleeved between the part and the first locking part, so that the elastic buffer reduces the vibration generated by the operation of the cooling fan.

Compared with the elastic washer in the prior art which can only provide a limited cushioning effect due to the strong extrusion of the screw, the elastic buffer in the fixing mechanism for the fan frame of the present invention is arranged between the buckle and the elastic buckle, The squeeze force received is not too large, but can have more elastic deformation than the prior art, thereby improving the shockproof effect.

In addition, compared to the shortcomings of the elastic washer in the prior art that is prone to elastic fatigue and low durability due to the long-term maintenance of the same deformation, the extrusion force received by the elastic buffer in the fixing mechanism for the fan frame of the utility model is due to It is elastic, so it can be fully elastically expanded and contracted, and it is less prone to elastic fatigue.

Furthermore, in the fixing device, the first buckling part of the buckling piece is buckled to the second buckling part of the fan frame buckling elastic piece to fix the fan frame, and the fixing device can be fixed on the bottom plate of the casing. Using methods such as rivet riveting, screw locking, or even hot melting, it is not necessary for the screws fixed on the bottom plate of the casing to carry elastic washers as in the prior art, so that the fixing device can be firmly fixed on the bottom plate of the casing.

From the above, it can be seen that the fixing mechanism for the fan of the present invention can improve various shortcomings of the prior art, so it has high industrial application value.

Description of drawings

Fig. 1 is the exploding schematic diagram that shows the fixed mechanism that fan frame of the present invention is used;

Fig. 2 is a schematic cross-sectional view showing the fixing mechanism for the fan frame of the present invention.

Symbol Description

1 chassis bottom plate

2 fan frame

20 cooling fans

21 buckle shrapnel

210 The second buckle

211 operation piece

3 Fixtures

30 fixed piece

31 buckle piece

310 The first buckle

4 Elastic buffer

40 top cover

41 buffer ring

Detailed ways

The implementation of the present utility model is described below through specific specific examples, and please describe the specific examples of the present utility model in conjunction with the drawings below, so that those skilled in the art can easily understand the technical features and functions of the present utility model.

first embodiment

Please refer to Fig. 1, the case bottom plate 1 can be set on an electronic device (not shown) such as a server, the main board can be carried on the case bottom plate 1, and the main board can be provided with, for example, a memory Cards, central processing units and other heating devices (not shown), in order to solve the heat dissipation problem of the above heating devices, a fan frame 2 equipped with a plurality of cooling fans 20 can be provided on the chassis bottom plate 1, the fan frame The opposite sides of 2 can be fixed to the chassis bottom plate 1 by the fixing device 3, but since the two sides of the fan frame 2 have the same structure, and in order to clearly express the technical characteristics of the utility model, only Shows the structure on one side. In addition, only one side of the fan frame 2 can be provided with the fixing device 3 , while the other side can be combined with the aforementioned wall of the electronic device by means such as embedding or pivoting.

The fixing device 3 may include a fixing piece 30 fixed on the chassis bottom plate 1, and a buckling piece 31 vertically arranged on the fixing piece 30 for fixing the fan frame 2, wherein the buckling piece 31 may have a second A locking part 310 . In addition, the fixing piece 30 can be fixed to the bottom plate 1 of the case by rivets, or locked to the bottom plate 1 of the case by screws, or even welded to the bottom plate 1 of the case.

The fan frame 2 is provided with a buckling elastic piece 21 opposite to the buckling piece 31 , the buckling elastic piece 21 has a second buckling portion 210 that can be buckled to the first buckling portion 310 , and the coupling protrusion 210 An elastic buffer 4 is sleeved between the accommodating recess 310 , so that the elastic buffer 4 reduces the vibration generated by the operation of the cooling fan 20 .

The first locking part 310 and the second locking part 210 can be respectively a concave part and a convex part disposed away from the fan frame 2, and the elastic buffer 4 is cap-shaped to cover the second locking part 210. Of course, the types of the first locking portion 310 and the second locking portion 210 can also be reversed on the raised portion.

In addition, the buckle elastic piece 21 can also be provided with an operation piece 211 at the top, so as to facilitate the operation of the user.

The ring side of the elastic buffer 4 can be corrugated to increase adhesion and increase the space for elastic buffering. Please refer to FIG. , so that the contact area of the top cover 40 to the first locking portion 310 is reduced by the buffer ring 41 .

And to apply the fixing mechanism for the fan frame of the present utility model to the shock absorption of the cooling fan 20, as long as the elastic buffer member 4 is placed on the second buckle part 210, and then the buckle elastic piece 21 is pulled and The fan frame 2 is placed at a predetermined position, and then the buckle elastic piece 21 is placed to make it bounce back and buckle to the buckle piece 31, and at the same time, the elastic buffer member 4 is arranged between the two to operate the cooling fan 20. When playing the effect of elastic cushioning.

Compared with the elastic washer in the prior art, which can only provide a limited buffer effect due to the strong extrusion of the screw, the elastic buffer member 4 in the fixing mechanism for the fan frame of the present invention is arranged on the buckle piece 21, the elastic buckle piece 31, the squeeze force suffered will not be too large, but can have more elastic deformation than the prior art, thereby improving the shockproof effect.

In addition, compared with the shortcomings of the elastic washer in the prior art, which is prone to elastic fatigue and low durability due to the long-term maintenance of the same deformation amount, the extrusion force received by the elastic buffer member 4 in the fixing mechanism for the fan frame of the present invention Due to its elasticity, it can fully elastically expand and contract, and is less prone to elastic fatigue.

Furthermore, the fixing device is combined with the fan frame 2 by interlocking the locking piece 21 and the elastic locking piece 31, and can be fixed to the bottom plate of the casing by means such as riveting, locking, welding, etc. There is no need for the screws fixed on the bottom plate of the casing as in the prior art to carry elastic washers, so that the fixing device can be firmly fixed on the bottom plate of the casing.

From the above, it can be seen that the fixing mechanism for the fan of the present invention can improve various shortcomings of the prior art, so it has high industrial application value.

However, the specific embodiments described above are only used to illustrate the characteristics and functions of the present invention, rather than to limit the scope of the present invention. Under the category, the above-mentioned embodiments are modified and changed.

Claims (7)

1. the fixed mechanism that fan frame is used is fixed in order to the fan frame that will be equiped with a plurality of radiator fans on the chassis backplane of electronic installation, and at least one side of this fan frame is fixed in this chassis backplane by stationary installation, it is characterized in that:

This stationary installation includes the stator that is fixed in this chassis backplane and is vertical at this stator ends sheet for the button of fixing this fan frame, and wherein, this button ends sheet and has first snap portion; This fan frame then be provided with relatively this button only the button of sheet end shell fragment, this button ends shell fragment and has second snap portion that is incorporated into this first snap portion, and be arranged with resilient snubber between this second snap portion and this first snap portion, thereby make this resilient snubber reduce the vibrations that produced because of the radiator fan running.

2. the fixed mechanism that fan frame according to claim 1 is used, it is characterized in that, this button ends sheet and this button first snap portion that only shell fragment had respectively and second snap portion and is respectively recess and the protuberance of establishing towards away from this fan frame, and this resilient snubber then is the protuberance that cap shape cover is overlying on this second snap portion.

3. the fixed mechanism that fan frame according to claim 1 is used, it is characterized in that, this button ends sheet and this button first snap portion that only shell fragment had respectively and second snap portion and is respectively protuberance and the recess of establishing towards away from this fan frame, and this resilient snubber then is the protuberance that cap shape cover is overlying on this first snap portion.

4. the fixed mechanism of using according to claim 2 or 3 described fan frames is characterized in that this ring side that resilient snubber had that is the cap shape is wavy.

5. the fixed mechanism of using according to claim 2 or 3 described fan frames is characterized in that this top cover that is the resilient snubber of cap shape has buffering ring.

6. the fixed mechanism that fan frame according to claim 1 is used is characterized in that, this elasticity button ends sheet and also has operating sheet on the top.

7. the fixed mechanism that fan frame according to claim 1 is used is characterized in that, thereby this stator is selected from riveted joint, screw locks, reaches one of them fixed sturcture that welds and is fixed in this chassis backplane.

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