TWM539572U - Vibration damping structure and fan thereof - Google Patents

Description

Shock absorbing structure and its fan

The present invention relates to a shock absorbing structure and a fan thereof, and more particularly to a shock absorbing structure for reducing vibration generated when a fan rotates, and a fan having the same.

With the rapid development of today's information technology, a large amount of information data needs to be calculated, integrated, transmitted and stored. In response to such a huge data technology, the base station of the server is responded to; according to different computing capabilities, the server is divided into two parts. Workgroup level servers, departmental servers and enterprise servers.

Servers, as hardware, usually refer to computers that have higher computing power and can be used by multiple users. Compared with ordinary PCs, servers need to work continuously in a 7X24-hour environment.

This means that the server needs more stability techniques to ensure data transfer.

In order to ensure the correctness of reading and writing, the internal disk of the server will detect the magnitude of the vibration to feedback the control of the head, which will affect the speed of reading and writing. In order to pursue the highest read/write efficiency, each storage device or server manufacturer evaluates the size of the hard disk vibration by the Rotation Vibration (RV) of the hard disk. Generally, to improve the read/write efficiency, in addition to actively enhancing the hard disk. In addition to its structural characteristics, it is also passively applied with gaskets or shock absorbing materials to reduce the impact of vibration on the hard disk.

Another source of vibration is the cooling fan required inside the server. Each fan manufacturer also improves the vibration transmission from the active motor efficiency and the blade to reduce the vibration transmission to the hard disk, or passively shims or shock absorbing materials on the fan bracket. To reduce the vibration caused by the fan to improve the hard disk reading efficiency. But overall, the effect still has Limitations may reduce vibration but sacrifice heat dissipation, or increase costs due to the addition of components.

Therefore, how to solve the above problems and deficiencies, that is, the creators of the case and the relevant manufacturers engaged in this industry are eager to study the direction of improvement.

Accordingly, in order to effectively solve the above problems, the main object of the present invention is to provide a shock absorbing structure that can reduce the vibration phenomenon generated when the fan is in operation.

Another object of the present invention is to provide a fan having a shock absorbing structure.

In order to achieve the above object, the present invention provides a shock absorbing structure for a fan having at least one bearing, the shock absorbing structure comprising: a support body, a fixing base and an elastic member, the support body having an upper end And the lower end, the upper end supports the bearing, the fixing base has a tube portion and a fixing portion, the tube portion has a protruding end and an accommodating space, the protruding end corresponding to the lower end of the supporting body, the accommodating The space has a bottom portion, the fixing portion is disposed on an outer side of the tube portion, the elastic member is disposed in the accommodating space of the tube portion, and is located between the support body and the fixing seat, the elastic element has a first The support end contacts the lower end of the support body, and a second support end contacts the bottom of the accommodating space.

The present invention further provides a fan, comprising: a frame body, a certain subgroup, a rotor group, a support body, a fixing base and an elastic component; the frame body has a first opening and a second opening, the first The second opening is provided with a base, and the base is provided with a shaft cylinder and a receiving portion, wherein the shaft cylinder is provided with at least one bearing, the stator assembly is sleeved outside the shaft cylinder, and the rotor assembly is associated with the stator assembly Correspondingly, and having a mandrel inserted in the shaft through the bearing, the support body is disposed in the shaft cylinder and located under the bearing, the support body has an upper end and a lower end, the upper end supports the bearing, The fixing seat is disposed in the shaft cylinder and has a tube portion and a fixing portion. The tube portion has a protruding end and an accommodating space, and the protruding end corresponds to a lower end of the supporting body, and the accommodating space has a bottom portion The fixing portion is disposed on an outer side of the tube portion and is opposite to the receiving portion In combination, the elastic member is disposed in the accommodating space of the tube portion and is located between the support body and the fixing seat, the elastic member has a first supporting end contacting the lower end of the supporting body, and a second support The end contacts the bottom of the accommodating space.

The lower end forms a first-order portion and a limiting portion. The step portion is sleeved in the protruding end. The limiting portion is formed on the outer side of the step portion corresponding to the protruding end, and the protruding end defines an inner diameter greater than An outer diameter of the step has an axial buffer gap between the protruding end and the limiting portion, and the elastic element comprises one of a liquid damper, a gas pressure damper and a spring damper.

1‧‧‧Vibration structure

11‧‧‧Support

111‧‧‧Upper

112‧‧‧Bottom

1121‧‧‧

1122‧‧‧Limited

12‧‧‧ Fixed seat

121‧‧‧ Department of Management

1211‧‧‧ protruding end

1212‧‧‧ accommodating space

1213‧‧‧ bottom

122‧‧‧Fixed Department

1221‧‧‧ protruding arms

1222‧‧‧ buckle

1223‧‧‧ Turning

13‧‧‧Flexible components

131‧‧‧First support end

132‧‧‧second support end

2‧‧‧fan

21‧‧‧ frame

211‧‧‧ first opening

212‧‧‧second opening

213‧‧‧Base

2131‧‧‧ shaft tube

21311‧‧‧ Bearing

2132‧‧‧Accepted Department

22‧‧‧stator group

23‧‧‧Rotor group

231‧‧‧ mandrel

A‧‧‧ axial buffer clearance

1A is a three-dimensional exploded view of the shock absorbing structure; 1B is a combined sectional view of the shock absorbing structure; 2A is a three-dimensional exploded view of the fan; 2B is a fan exploded sectional view; and 2C is a fan FIG. 3A is a perspective exploded view of another implementation base and a fixed seat; FIG. 3B is a combined sectional view of another implementation base and a fixed seat; FIG. 4A is another sectional view; An exploded perspective view of the base and the fixed seat; a cross-sectional view of the base and the fixed base is further illustrated in FIG. 4B; a front view of the tandem fan combination is shown in FIG. 5A; and a partial cross section of the tandem fan is shown in FIG. schematic diagram;

The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings.

1A is a three-dimensional exploded view of the shock absorbing structure; 1B is a combined sectional view of the shock absorbing structure; 2A is a three-dimensional exploded view of the fan; 2B is a fan exploded sectional view; and 2C is a fan FIG. 3A is a perspective exploded view of another implementation base and a fixed seat; FIG. 3B is a combined sectional view of another implementation base and a fixed seat; FIG. 4A is another sectional view; An exploded perspective view of the base and the fixed seat; a cross-sectional view of the base and the fixed base is further illustrated in FIG. 4B; a front view of the tandem fan combination is shown in FIG. 5A; and a partial cross section of the tandem fan is shown in FIG. schematic diagram. As shown in FIG. 1A to FIG. 1B, the shock absorbing structure 1 of the present invention comprises a support body 11, a fixing base 12 and an elastic member 13. The support body 11 has an upper end 111 and a lower end 112. The upper end 111 The lower end 112 faces away from each other (opposite), and the lower end 112 forms a first step portion 1121 and a limiting portion 1122. The step portion 1121 is a concave structure, and the limiting portion 1122 is a blocking wall.

The fixing base 12 has a tube portion 121 and a fixing portion 122. The fixing portion 12 defines the tube portion 121 in the axial direction. The tube portion 121 has a protruding end 1211 and an accommodating space 1212. The accommodating space 1212 is disposed in the accommodating space 1212. There is a bottom portion 1213. The fixing portion 122 has a protruding arm 1221. The protruding arm 1221 has a free end extending radially from the outside of the tube portion 121. The free end forms a buckle 1222.

The elastic member 13 is disposed between the support body 11 and the fixing base 12 and disposed in the accommodating space 1212. The elastic member 13 has a first supporting end 131 and a second supporting end 132. The first supporting end 131 The lower end 112 of the support body 11 is in contact with the bottom portion 1213 of the accommodating space 1212. The elastic member 13 is, for example but not limited to, a liquid damper, a gas pressure damper or a spring damper.

The step portion 1121 is sleeved in the protruding end 1211. The limiting portion 1122 is formed on the outer side of the step portion 1121 and corresponds to the protruding end 1211. The protruding end 1211 defines an inner diameter, and the inner diameter is larger than An outer diameter of the step portion 1121 is such that the step portion 1121 can be axially moved in the tube portion 121. The elastic member 13 is in an unstressed state, and between the protruding end portion 1211 and the limiting portion 1122. Having an axial buffer gap A, the axial buffer gap A is shortened when the elastic member 13 is under the force, and the convex The extending end 1211 and the limiting portion 1122 will be in contact with each other, and the length or length of the axial buffering gap A can be set according to the use requirement.

Please refer to FIG. 2A to FIG. 2C , and with reference to FIG. 1A and FIG. 1B , which is a fan 2 of the present invention. The fan 2 is combined with the above-mentioned shock absorbing structure 1 , and the fan 2 includes a frame 21 , a sub-group 22 and a rotor group 23, the frame body 21 has a first opening 211 and a second opening 212. The second opening 212 is provided with a base 213, and the base 213 is provided with a shaft barrel 2131 and a The receiving portion 2132 is provided with at least one bearing 21311. The stator assembly 22 is sleeved outside the shaft barrel 2131. The rotor group 23 corresponds to the stator assembly 22 and has a spindle 231 interposed therebetween. The bearing tube 21311 is penetrated in the shaft barrel 2131.

The support body 11 is disposed in the shaft barrel 2131 and located below the bearing 21311. The upper end 111 supports the bearing 21311. The fixing base 12 is coupled to the base 213. In this embodiment, the free end is a plug. The buckle 1222 is a receptacle corresponding to the latch 1222, whereby when the rotor group 23 generates a vibration, the vibration is transmitted from the bearing 21311 to the support body 11 and the shock is absorbed by the elastic member 13.

Please refer to FIG. 3A and FIG. 3B , the overall structure is substantially the same as that of the above embodiment, and therefore, the difference is that in the present embodiment, the free end of the fixing portion 122 forms a turn 1223, and the receiving portion 2132 is a structure. Corresponding to the structure of the buckle 1223 and the structure of the card slot, the fixing seat 12 and the base 213 are firmly coupled.

Please refer to FIG. 4A and FIG. 4B , the overall structure is substantially the same as that of the above embodiment, and therefore, the difference is that the fixing portion 122 in the embodiment is an external thread, and the receiving portion 2132 is a structure corresponding to the external thread. One of the internal threads, through which the external thread and the internal thread are configured to achieve a stable joint of the fixed seat 12 and the base 213.

Referring to FIGS. 5A and 5B, and referring to FIG. 2A, FIG. 2B and FIG. 2C, the second openings 212 of the two fans 2 are placed opposite each other and fixed to form a tandem fan. Therefore, when the fan 2 vibrates, the shock absorbing structure 1 in each of the fans 2 will absorb the shock, and the shock absorption purpose is also achieved. As mentioned above, this creation is compared to the conventional cooling fan:

1. Has a good shock absorption effect.

2. Diversified fixed structural changes.

The present invention has been described in detail above, but the above is only the preferred embodiment of the present invention, and the scope of the present invention cannot be limited. That is, all changes and modifications made in accordance with the scope of this creation application shall remain covered by the patents of this creation.

1‧‧‧Vibration structure

11‧‧‧Support

111‧‧‧Upper

112‧‧‧Bottom

1121‧‧‧

1122‧‧‧Limited

1211‧‧‧ protruding end

1213‧‧‧ bottom

1221‧‧‧ protruding arms

1222‧‧‧ buckle

131‧‧‧First support end

132‧‧‧second support end

A‧‧‧ axial buffer clearance

Claims (16)

A shock absorbing structure is applied to a fan having at least one bearing, the shock absorbing structure comprising: a support body having an upper end and a lower end, the upper end supporting the bearing; a fixing seat having a tube portion and a fixing portion The tube portion has a convex end and an accommodating space, the convex end corresponding to the lower end of the support body, the accommodating space has a bottom portion, the fixing portion is disposed on an outer side of the tube portion; an elastic element, The elastic member has a first supporting end contacting the lower end of the supporting body, and a second supporting end contacting the receiving space, and is disposed between the supporting body and the fixing seat. bottom of. The shock absorbing structure of claim 1, wherein the lower end forms a first step portion and a limiting portion, the step portion is sleeved in the protruding end portion, and the limiting portion is formed on the outer side of the step portion It should be convex. The shock absorbing structure of claim 2, wherein the convex end defines an inner diameter greater than an outer diameter of the step. The shock absorbing structure of claim 2, wherein the protruding end and the limiting portion have an axial buffer gap. The shock absorbing structure of claim 1, wherein the elastic member comprises one of a liquid damper, a gas pressure damper and a spring damper. The shock absorbing structure according to claim 1, wherein the fixing portion has a protruding arm extending radially from the outside of the tube portion to have a free end, and the free end forms a buckle. The shock absorbing structure of claim 1, wherein the fixing portion has a protruding arm extending radially from the outside of the tube portion to have a free end, and the free end forms a turn button. The shock absorbing structure of claim 1, wherein the fixing portion is an external thread. A fan includes a frame having a first opening and a second opening, the second opening is provided with a base, and the base is provided with a shaft tube and a receiving portion, and the shaft tube is provided with a shaft At least one bearing; a certain sub-group, sleeved outside the shaft; a rotor group corresponding to the stator group, and having a mandrel inserted in the shaft through the bearing; a shock absorbing structure comprising: a support body is disposed in the shaft cylinder and located under the bearing, the support body has an upper end and a lower end, the upper end supports the bearing; a fixing seat is disposed in the shaft cylinder and has a tube portion and a fixed portion The tube portion has a convex end and an accommodating space, the protruding end corresponding to the lower end of the support body, the accommodating space having a bottom portion, the fixing portion being disposed on an outer side of the tube portion and following the receiving portion The connecting portion is butt-joined; an elastic member is disposed in the accommodating space of the tube portion and located between the supporting body and the fixing seat, the elastic member has a first supporting end contacting the lower end of the supporting body, and a The second supporting end contacts the bottom of the accommodating space. The fan of claim 9, wherein the lower end forms a first-order portion and a limiting portion, the step portion is sleeved in the protruding end, and the limiting portion is formed on the outer side of the step portion. Protruding end. The fan of claim 10, wherein the protruding end defines an inner diameter greater than an outer diameter of the step. The fan of claim 10, wherein the protruding end and the limiting portion have an axial buffer gap. The fan of claim 9, wherein the elastic member comprises one of a liquid damper, a gas pressure damper and a spring damper. The fan of claim 9, wherein the fixing portion has a protruding arm extending radially from the outside of the tube portion with a free end, the free end forming a buckle, the receiving portion forming a jack . The fan of claim 9, wherein the fixing portion has a protruding arm extending radially from the outside of the tube portion to have a free end, the free end forming a turn button, and the receiving portion forms a card slot . The fan of claim 9, wherein the fixing portion is an external thread, and the receiving portion is an internal thread.