TW201819774A - Vibration damper structure and series fan thereof - Google Patents

Abstract

A vibration damper structure and a series fan thereof. The vibration damper structure includes a first support body, a second support body and an elastic member. The first support body has a first upper end and a first lower end. The second support body has a second upper end and a second lower end. The elastic member is disposed between the first and second support bodies. The elastic member has a first support end in contact with the first lower end and a second support end in contact with the second lower end. The vibration damper structure is applied to the series fan to greatly reduce the vibration of the series fan in operation.

Description

Shock-absorbing structure and its series fan

The invention relates to a shock-absorbing structure and a series fan thereof, in particular to a shock-absorbing structure that reduces the vibration generated when the fan rotates, and a series fan having the shock-absorbing structure.

With the rapid development of information technology today, a large amount of information data needs to be calculated, integrated, transmitted, and stored. In order to cope with such a huge data technology, the server's abutment has been born accordingly. According to different computing capabilities, the server is divided into Workgroup-level servers, department-level servers, and enterprise-level servers. Servers, as hardware, usually refer to computers that have high computing power and can be provided to multiple users. Compared with ordinary PCs, servers need to work continuously in a 7X24-hour environment. This means that the server needs more stability technology to ensure data transmission. In order to ensure the correctness of reading and writing, the disk drive in the server will detect the magnitude of the vibration to feedback the control of the reading and writing head. This will affect the reading and writing speed. Each storage device or server manufacturer, in order to pursue the highest read and write efficiency, uses hard disk rotation vibration (RV) to evaluate the size of the hard disk vibration. Generally, to improve the read and write efficiency, in addition to actively strengthening the hard disk In addition to its structural characteristics, it will also passively add pads 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 starts from the active motor efficiency and fan blades to improve the reduction of vibration transmission to the hard disk, or passively adds a gasket or shock-absorbing material to the fan bracket. In order to reduce the vibration caused by the fan to improve the reading efficiency of the hard disk. However, the overall effect is still limited. It may reduce vibration but sacrifice heat dissipation, or increase costs due to additional mechanical parts. Therefore, how to solve the above-mentioned problems and shortcomings, that is, the creators of this case and the relevant manufacturers engaged in this industry are eager to study the improvement direction.

Therefore, 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 a series fan is running. Another object of the present invention is to provide a series fan with a shock-absorbing structure. To achieve the above object, the present invention provides a shock-absorbing structure, which is applied to a series fan including a first fan having at least a first bearing, a second fan having at least a second bearing, and a series of connecting surfaces Between the first fan and the second fan, the shock absorbing structure includes: a first support body, a second support body, and an elastic element, the first support body has a first upper end and a first lower end, The first upper end supports the first bearing; the second support has a second upper end and a second lower end, and the second upper end supports the second bearing; the elastic element is disposed on the first support and the second The elastic members have a first support end contacting the first lower end and a second support end contacting the second lower end between the support bodies and spanning through the series connection surface. The present invention further provides a tandem fan including: a first frame, a second frame, and a shock-absorbing structure. The first frame has a first opening and a second opening, and the second opening is provided with a The first base is provided with a first shaft cylinder, the first shaft cylinder is provided with at least a first bearing, the first shaft cylinder is provided with a first stator group, and the first stator The sub-group corresponds to a first rotor group. The first rotor group has a first mandrel. The first mandrel is inserted in the first shaft barrel and penetrates the first bearing. The second frame body has a third An opening and a fourth opening, the fourth opening is provided with a second base, the second base is provided with a second shaft cylinder, the second shaft cylinder is provided with at least one second bearing, and the second shaft cylinder The outer sleeve is provided with a second stator group corresponding to a second rotor group. The second rotor group has a second mandrel. The second mandrel is inserted in the second shaft cylinder and penetrates the second A bearing, the fourth opening of the second frame body abuts against the second opening of the first frame body and defines a series of connection surfaces; the shock absorbing structure includes a first A support body, a second support body, and an elastic element, the first support body is disposed in the first shaft cylinder and located below the first bearing, and has a first upper end and a first lower end; The upper end supports the first bearing; the second support body is disposed in the second shaft cylinder and located below the second bearing, and has a second upper end and a second lower end, and the second upper end supports the second bearing, The elastic element is disposed between the first support body and the second support body and spans the series connection surface. The elastic element has a first support end contacting the first lower end, and a second support end contacting the Second lower end. In one embodiment, the first lower end forms a first convex section, the second lower end forms a second convex section, the first support end is located in the first convex section, and the second support end is located in Within the second protruding section. In one embodiment, a supporting pipe is provided between the first supporting body and the second supporting body. The supporting pipe has a first open end face to the first support body, and a second open end face to the first support body. Two support bodies, the first lower end forming a first step portion and a first limiting portion, the second lower end forming a second step portion and a second limiting portion, a first open end sleeve of the supporting pipe The first step portion is provided to correspond to the first limit portion, and the second open end of the supporting pipe is sleeved to correspond to the second limit portion. In one embodiment, the first open end defines an inner diameter larger than an outer diameter of the first step portion, the second open end defines an inner diameter larger than an outer diameter of the second step portion, and the first open end An axial buffer gap is provided between the first limiting portion and the second open end, and an axial buffer gap is provided between the second open end and the second limiting portion. In one embodiment, the elastic element includes one of a liquid damper, a pneumatic damper, or a spring damper. In an embodiment, the first frame body and the second frame system are combined by one of snap-fitting, locking, fitting, adhering, or snap-fitting or sliding rails.

The above-mentioned object of the present invention and its structural and functional characteristics will be described based on the preferred embodiments of the drawings. Figure 1A is a three-dimensional exploded view of the first embodiment of the shock-absorbing structure; Figure 1B is a cross-sectional view of the first embodiment of the shock-absorbing structure; Figure 2A is a three-dimensional exploded view of the series fan; and Figure 2B is Sectional view of the series fan assembly; Figure 2C is a partially enlarged schematic diagram of Figure 2B; Figure 3A is a three-dimensional exploded view of the second embodiment of the shock-absorbing structure; Figure 3B is a second embodiment of the shock-absorbing structure Sectional view; FIG. 3C is a partial cross-sectional view of the second embodiment in which the shock-absorbing structure is combined with a tandem fan. As shown in FIG. 1A and FIG. 1B, the shock absorbing structure 1 of the first embodiment of the present invention includes a first support body 11, a second support body 12, and an elastic element 13. The first support body 11 has a first upper end 111 and a first lower end 112. The first upper end 111 and the first lower end 112 face away from each other, and the first lower end 112 forms a first convex section 1121. The second support body 12 has a second upper end 121 and a second lower end 122. The second upper end 121 and the second lower end 122 face away from each other, and the second lower end 122 forms a second convex section 1221. The elastic element 13 is located between the first support body 11 and the second support body 12. The elastic element 13 has a first support end 131 and a second support end 132. The first support end 131 contacts the first support end 131. The lower end 112, the second support end 132 contacts the second lower end 122, and the elastic element 13 is, for example, but not limited to, a liquid damper, a pneumatic damper, or a spring damper. The first supporting end 131 is located in the first protruding section 1121, the second supporting end 132 is located in the second protruding section 1221, the first protruding section 1121 and the second protruding section 1221 are sleeved on Both ends of the elastic element 13 prevent the elastic element 13 from shifting due to compression. As shown in FIG. 2A, FIG. 2B, and FIG. 2C, and supplemented with reference to FIGS. 1A and 1B, the tandem fan of the present invention includes a first frame 2 and a second frame 3 And the shock-absorbing structure 1, the first frame 2 has a first opening 21 and a second opening 22, the second opening 22 is provided with a first base 23, and the first base 23 is provided with a first shaft A first bearing 2311 is disposed in the first shaft cylinder 231, a first stator group 24 is provided on the outer surface of the first shaft cylinder 231, and a first rotor group 25 corresponds to the first stator group 24, and A first mandrel 251 is inserted into the first shaft cylinder 231 and penetrates the first bearing 2311. The second frame body 3 has a third opening 31 and a fourth opening 32. The fourth opening 32 is provided with a second base 33. The second base 33 is provided with a second shaft cylinder 331. The second shaft A second bearing 3311 is provided in the cylinder 331. The second shaft cylinder 331 is sheathed with a second stator group 34, a second rotor group 35 corresponds to the second stator group 34, and a second mandrel 351 is inserted. The second bearing 3311 passes through the second shaft cylinder 331. The second opening 22 of the first frame body 2 is opposite to the fourth opening 32 of the second frame body 3, and the first frame body 2 and the second frame body 3 are fixedly docked. The second opening 22 and the The abutting surface of the fourth opening 32 is defined as a series of abutting surfaces B (as shown in FIG. 2C). The first frame body 2 and the second frame body 3 are fixed in a base-to-base manner, and the shock-absorbing structure 1 Located between the first frame body 2 and the second frame body 3, the first support body 11 is disposed in the first shaft cylinder 231 and below the first bearing 2311, and the second support body 12 is disposed in the Inside the second shaft cylinder 331 and below the second bearing 3311, the elastic element 13 spans through the serial connection surface B and both sides are located in the first shaft cylinder 231 and the second shaft cylinder 331, respectively. 2 and the second frame 3 are combined by one of snap-fitting, locking, fitting, gluing, or snap-on or slide rails. In this embodiment, when the series fan is running, the first rotor group The vibrations generated by 25 and the second rotor group 35 are transmitted by the first support body 11 and the second support body 12 to the elastic element 13 to absorb the vibrations. As shown in FIG. 3A, FIG. 3B, and FIG. 3C, and supplemented with reference to FIG. 2A and FIG. 2B, the second embodiment of the present invention is a shock-absorbing structure 1. In this embodiment, the shock-absorbing structure 1 It includes a first support body 11, a second support body 12, an elastic element 13 and a support pipe 14, wherein a first upper end 111 of the first support body 11 and a second upper end 121 of the second support body 12. As in the first embodiment, no further description is provided here. The main difference is that the first lower end 112 of the first support 11 forms a first stepped portion 1122 and a first limiting portion 1123, and the second lower end 122 forms a A second step portion 1222 and a second limiting portion 1223. A first open end 141 of the supporting tube 14 is sleeved with the first step portion 1122 and corresponds to the first limiting portion 1123. A first The two open ends 142 surround the second step portion 1222 and correspond to the second limiting portion 1223. The aforementioned elastic element 13 is housed in the support pipe 14, the first open end 141 defines an inner diameter larger than an outer diameter of the first step portion 1122, and the second open end 142 defines an inner diameter larger than the second step portion. An outer diameter of 1222 causes the first step portion 1122 and the second step portion 1222 to move axially within the support pipe 14, and the elastic element 13 is in an unstressed state. The first limiting portion 1123 and There is an axial buffer gap A between the first open end 141, and an axial buffer gap A between the second limiting portion 1223 and the second open end 142. When the elastic element 13 is under a force, , The axial buffer gap A will be shortened, and the first limiting portion 1123 and the second limiting portion 1223 are in contact with the support pipe 14 respectively. The length or the length of the axial buffer gap A can be set according to the use requirements . As mentioned above, compared with the conventional tandem cooling fan in the present invention: 1. It has a good shock absorption effect. 2. Share a group of shock-absorbing structures to achieve the advantage of reducing costs. The present invention has been described in detail above, but the above are only preferred embodiments of the present invention, and the scope of implementation of the present invention cannot be limited. That is, all equivalent changes and modifications made in accordance with the scope of the application of the present invention shall still fall within the scope of patent of the present invention.

1‧‧‧ shock-absorbing structure

11‧‧‧ the first support

111‧‧‧ the first upper end

112‧‧‧First lower end

1121‧‧‧The first convex section

1122‧‧‧First Stage

1123‧‧‧First limit department

12‧‧‧ second support

121‧‧‧ second upper end

122‧‧‧ the second lower end

1221‧‧‧Second convex section

1222‧‧‧Second Stage

1223‧‧‧Second Limiting Department

13‧‧‧Elastic element

131‧‧‧first support end

132‧‧‧Second support end

14‧‧‧ support pipe fittings

141‧‧‧First open end

142‧‧‧Second open end

2‧‧‧ the first frame

21‧‧‧ the first opening

22‧‧‧Second opening

23‧‧‧First Base

231‧‧‧First shaft cylinder

2311‧‧‧First bearing

24‧‧‧First stator group

25‧‧‧The first rotor group

251‧‧‧first mandrel

3‧‧‧Second frame

31‧‧‧ third opening

32‧‧‧ fourth opening

33‧‧‧Second Base

331‧‧‧Second shaft cylinder

3311‧‧‧Second bearing

34‧‧‧Second stator group

35‧‧‧Second rotor set

351‧‧‧Second Mandrel

A‧‧‧Axial buffer gap

B‧‧‧ tandem face

Figure 1A is a three-dimensional exploded view of the first embodiment of the shock-absorbing structure; Figure 1B is a cross-sectional view of the first embodiment of the structure of the shock-absorbing structure; Figure 2A is a three-dimensional exploded view of the series fan; Figure 2B is Sectional view of the series fan assembly; Figure 2C is a partially enlarged schematic diagram of Figure 2B; Figure 3A is a three-dimensional exploded view of the second embodiment of the shock-absorbing structure; Figure 3B is a second embodiment of the shock-absorbing structure Sectional view; Figure 3C is a partial cross-sectional view of the second embodiment of the vibration damping structure combined with a tandem fan.

Claims (17)

A shock-absorbing structure is applied to a series fan including a first fan having at least a first bearing, a second fan having at least a second bearing, and a series connection surface between the first fan and the second fan. Meanwhile, the shock absorbing structure includes: a first support body having a first upper end and a first lower end, the first upper end supporting the first bearing; a second support body having a second upper end and a first Two lower ends, the second upper end supporting the second bearing; an elastic element disposed between the first support body and the second support body and spanning through the tandem surface, the elastic element having a first support end contact The first lower end and a second support end contact the second lower end. The shock absorbing structure according to item 1 of the scope of patent application, wherein the first lower end forms a first convex section, the second lower end forms a second convex section, and the first supporting end is located on the first convex section. In the extension section, the second support end is located in the second convex extension section. The shock absorbing structure according to item 1 of the scope of patent application, wherein a support pipe is provided between the first support and the second support, and the support pipe has a first opening end face to the first support, And a second opening end face is opposite to the second supporting body. The shock absorbing structure according to item 3 of the scope of patent application, wherein the first lower end forms a first step portion and a first limit portion, and the second lower end forms a second step portion and a second limit portion The first open end of the supporting pipe is sleeved with the first step portion and corresponds to the first limiting portion, and the second open end of the supporting pipe is sleeved with the second step portion and corresponding to the second limiting portion. The shock absorbing structure according to item 4 of the patent application scope, wherein the first open end defines an inner diameter larger than an outer diameter of the first step portion, and the second open end defines an inner diameter larger than the second step portion. An outer diameter. The shock absorbing structure according to item 4 of the scope of patent application, wherein an axial buffer gap is provided between the first open end and the first limiting portion. The shock absorbing structure according to item 4 of the scope of patent application, wherein an axial buffer gap is provided between the second open end and the second limiting portion. The shock absorbing structure according to item 1 of the patent application scope, wherein the elastic element includes one of a liquid damper, a pneumatic damper, or a spring damper. A series fan includes: a first frame body having a first opening and a second opening, the second opening is provided with a first base, the first base is provided with a first shaft cylinder, and the first A shaft cylinder is provided with at least a first bearing, and the first shaft cylinder is provided with a first stator group, the first stator group corresponds to a first rotor group, and the first rotor group has a first mandrel The first mandrel is inserted in the first shaft barrel to penetrate the first bearing; a second frame body has a third opening and a fourth opening, and the fourth opening is provided with a second base, the A second shaft cylinder is provided on the second base. The second shaft cylinder is provided with at least one second bearing. The second shaft cylinder is provided with a second stator group, and the second stator group corresponds to a second rotor group. The second rotor group has a second mandrel. The second mandrel is inserted in the second shaft barrel and penetrates the second bearing. The fourth opening of the second frame body faces the first frame body. The second opening is butted and defines a series of joint surfaces; a shock-absorbing structure includes: a first support body, which is disposed in the first shaft cylinder and located on the first shaft Below the bearing, there is a first upper end and a first lower end, and the first upper end supports the first bearing; a second support body is disposed in the second shaft cylinder and is located below the second bearing, and has A second upper end and a second lower end, the second upper end supporting the second bearing; an elastic element disposed between the first support body and the second support body and spanning through the series connection surface, the elastic element A first support end contacts the first lower end, and a second support end contacts the second lower end. The tandem fan according to item 9 of the application, wherein the first lower end forms a first convex section, the second lower end forms a second convex section, and the first support end is located on the first convex section. Within the segment, the second support end is located within the second convexly extending segment. The tandem fan according to item 9 of the scope of patent application, wherein a supporting pipe is provided between the first supporting body and the second supporting body, and the supporting pipe has a first opening end face to the first supporting body, and A second opening end face faces the second supporting body. The serial fan according to item 11 of the scope of patent application, wherein the first lower end forms a first step portion and a first limiting portion, and the second lower end forms a second step portion and a second limiting portion The first open end of the support pipe is sleeved with the first step portion and corresponds to the first limit portion, and the second open end of the support pipe is sleeved with the second step portion and corresponds to the second limit portion. The serial fan according to item 12 of the application, wherein the first open end defines an inner diameter larger than an outer diameter of the first step, and the second open end defines an inner diameter larger than the second step.一 OD. The tandem fan according to item 12 of the patent application, wherein an axial buffer gap is provided between the first open end and the first limiting portion. The serial fan according to item 12 of the application, wherein an axial buffer gap is provided between the second open end and the second limiting portion. The serial fan according to item 9 of the application, wherein the elastic element includes one of a liquid damper, a pneumatic damper, or a spring damper. The tandem fan according to item 9 of the scope of the patent application, wherein the first frame body and the second frame system are combined by one of snap-fitting, locking, fitting, adhering, or snapping or sliding rails.