HEAT SINK CLIP DEVICE
A heat sink clip device, configured to secure a heat sink to a heat generating unit, the heat sink clip comprises a thermal conductive board and a plurality of locking members. The thermal conductive board is attached to the heat generating unit. The thermal conductive board may include a plurality of connecting apertures. Each connecting aperture may include a bigger diameter portion and a smaller diameter portion connected with the bigger diameter portion. A plurality of locking members may be engaged with the corresponding connecting aperture. Each locking members may include a threaded member and an elastic unit sheathed on the threaded member. The threaded member may include a bar portion, a head portion and a blocking ring. The head portion and the blocking ring are respectively on both sides of the bar portion. The diameter of the bar portion may be a little bit smaller than the size of the smaller diameter portion. The outside diameter of the blocking ring may be a little bit smaller than the size of the bigger diameter portion. The inside diameter of the elastic unit may be a little bit bigger than the outside diameter of the blocking ring. The bar portion and the blocking ring may go through the bigger diameter portion and then may be secured to the smaller diameter portion. The elastic unit may be suppressed between the threaded member head and the thermal conductive board. This creates a heat sink clip device.
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1. Technical Field
The present invention relates to a fixture, especially for a clip device used for a heat sink.
2. Related Art
Since the calculation speed of internal components of electronic products substantially increases, the heat generation also substantially increases. Therefore, the heat generated by the electronic components needs to be dissipated by the heat sink device to control the working temperature in order to maintain the electronic components in a normal operation.
Traditionally, the heat sink device needs the clip to secure it to the base of the electronic components. The heat sink device includes a thermal conductive board attached to the electronic components, and a heat dissipating unit such as heat dissipating fins or heat pipes. The thermal conductive board can usually be secured by screws as the locking member. The screw includes a ring slot which can be engaged with a C-shaped ring. During the installation, the screw is provided with an elastic unit, then the screw goes through the thermal conductive board and is secured on the base, and finally the C-shaped ring is engaged with the ring slot to prevent screw from loosening.
In the above structure, the size of the C-shaped ring is small. During the installation, tools need to be used to engage the C-shaped ring with the ring slot, which makes it inconvenient in the installation process. In addition, when the screw needs to be disassembled, the C-shaped ring might be destroyed by forced opening and will probably not be reused.
BRIEF SUMMARYThe present invention provides a heat sink clip device, whose simple structure and convenient and speedy installation makes it very easy to be assembled and disassembled.
A heat sink clip device of the present invention is configured to secure a heat sink to a heat generating unit. The heat sink clip device comprises a thermal conductive board and a plurality of locking members. The thermal conductive board is attached to the heat generating unit. The thermal conductive boarding includes a plurality of connecting apertures, and each connecting aperture includes a bigger diameter portion and a smaller diameter portion connected with the bigger diameter portion. A plurality of locking members is respectively engaged with the connecting apertures. Each locking member includes a threaded member and an elastic unit sheathed on the threaded member. The threaded member includes a bar portion a head portion and a blocking ring. The head portion and the blocking ring are respectively attached to both sides of the bar portion. The diameter of the bar portion is a little bit smaller than the size of the smaller diameter portion. The outside diameter of the blocking ring is a little bit smaller than the size of the bigger diameter portion. The inside diameter of the elastic unit is a little bit bigger than the outside diameter of the blocking ring. The bar portion and the blocking ring go through the bigger diameter portion and then are secured to the smaller diameter portion. The elastic unit is suppressed between the head portion and the thermal conductive board.
This invention also provides a heat sink clip device, which may be suitable to relatively small thermal conductive board and may increase the flexibility of the present invention because the connecting aperture is formed on the periphery of the thermal conductive board.
This invention further provides a heat sink clip device, whose blocking ring is provided on top of the base to prevent the threaded members from being over-screwed, to prevent the threaded members from destroying the base during the securing process and to increase the utility of the present invention.
Compared to the related arts, the heat sink clip device of the present invention includes a blocking ring provided with one or more threaded members. The corresponding connecting apertures may be formed on the thermal conductive board to let the threaded members go through and be secured. As a result, during the installation process, C-shaped ring need not be used and the tool to open the C-shaped ring need not be used, either. In addition, when the threaded members are secured to the base, the blocking ring is provided on top of the base to prevent the threaded members from being over-screwed, to prevent the threaded members from destroying the base during the securing process and to increase the utility of the present invention. Moreover, when the area of the thermal conductive board is relatively small, the connecting aperture may also be formed on the periphery of the thermal conductive board in order to decrease the installation area of the connecting aperture and therefore to increase the flexibility of the present invention.
These and other features and advantages of the various embodiments disclosed herein will be better understood with respect to the following description and drawings, in which like numbers refer to like parts throughout, and in which:
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that drawings do not limit the scope of the present invention.
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The flattened heat dissipating tube 3 may be attached to the thermal conductive board 10. The thermal conductive board 10 may include a plurality of connecting apertures 11. Each connecting aperture 11 may include a bigger diameter portion 12 and a smaller diameter portion 13 connected to the bigger diameter portion 12. In this embodiment, the thermal conductive board 10 may be a rectangular board. The connecting apertures 11 may be provided inside of the thermal conductive board 10. The bigger diameter portion 12 and the smaller diameter portion 13 may be both arc apertures to make the whole connecting aperture 11a gourd shape.
The locking members 20 may respectively go through the connecting apertures 11. The locking member 20 may include a threaded member 21 and an elastic unit 22 sheathed the threaded member 21. The threaded member 21 may include a bar portion 210, a head portion 211 and a blocking ring 212. The head portion 211 and the blocking ring 212 may be respectively attached to both sides of the bar portion 210. The diameter of the bar portion 210 may be a little bit smaller than the size of the smaller diameter portion 13. The outside diameter of the blocking ring 212 may be a little bit smaller than the size of the bigger diameter portion 12. The inside diameter of the elastic unit 22 may be a little bit bigger than the outside diameter of the blocking ring 212.
In this embodiment, the threaded member 21 may be a screw. The head portion 211 may be a screw head. The threaded member 21 may form a threaded portion 213 outside of the blocking ring 212. In addition, the size of the smaller diameter portion 13 may be bigger than the diameter of the bar portion 210 for about 0.2-0.3 mm. The size of the bigger diameter portion 12 may be bigger than the outside diameter of the blocking ring 212 for about 0.2-0.3 mm. Furthermore, there is a neck portion 14 between the bigger diameter portion 12 and the smaller diameter portion 13. The width of the neck portion 14 may be a little bit smaller than the diameter of the bar portion 210, for example, smaller by about 0.1 mm.
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The above description is given by way of example, and not limitation. Given the above disclosure, one skilled in the art could devise variations that are within the scope and spirit of the invention disclosed herein, including configurations ways of the recessed portions and materials and/or designs of the attaching structures. Further, the various features of the embodiments disclosed herein can be used alone, or in varying combinations with each other and are not intended to be limited to the specific combination described herein. Thus, the scope of the claims is not to be limited by the illustrated embodiments.
Claims
1. An heat sink clip device, configured to secure a heat sink to a heat generating unit, the heat sink clip device comprising:
- a thermal conductive board, attached to the heat generating unit, the thermal conductive board including a plurality of connecting apertures, each connecting aperture including a bigger diameter portion and a smaller diameter portion connected with the bigger diameter portion;
- a plurality of locking members, respectively engaged with the connecting apertures, each locking member including a threaded member and an elastic unit sheathed on the threaded member, the threaded member including a bar portion, a head portion and a blocking ring, the head portion and the blocking ring being respectively attached to on both sides of the bar portion, the diameter of the bar portion being a little bit smaller than the size of the smaller diameter portion, the outside diameter of the blocking ring being a little bit smaller than the size of the bigger diameter portion, the inside diameter of the elastic unit being a little bit bigger than the outside diameter of the blocking ring, the bar portion and the blocking ring going through the bigger diameter portion and then being secured to the smaller diameter portion, the elastic unit being suppressed between the head portion and the thermal conductive board.
2. The heat sink clip device according to claim 1, wherein the connecting aperture is formed in the thermal conductive board.
3. The heat sink clip device according to claim 1, wherein the connecting aperture is formed on the periphery of the thermal conductive board.
4. The heat sink clip device according to claim 3, wherein the bigger diameter portion is a long trough, the smaller diameter portion is an arc aperture, the long trough is formed on the periphery of the thermal conductive board and has an opening, extending to be connected with the arc aperture.
5. The heat sink clip device according to claim 2, wherein the thermal conductive board extends to form a plurality of sleeves, each sleeve includes a surrounding piece and a board piece attached to the surrounding piece, and the board piece includes the connecting aperture.
6. The heat sink clip device according to claim 3, wherein the thermal conductive board extends to form a plurality of sleeves, each sleeve includes a surrounding piece and a board attached to the surrounding piece, and the board piece includes the connecting aperture.
7. The heat sink clip device according to claim 1, wherein the bigger diameter portion and the smaller diameter portion are respectively arc apertures to form a gourd shape of the connecting aperture.
8. The heat sink clip device according to claim 1, wherein the threaded member is a screw and the threaded member head is a screw head.
9. The heat sink clip device according to claim 1, wherein the size of the smaller diameter portion is bigger than the diameter of the bar portion for 0.2-0.3 mm.
10. The heat sink clip device according to claim 1, wherein a neck portion is included between the bigger diameter portion and the smaller diameter portion, and the width of the neck portion is a little bit smaller than the diameter of the bar portion.
11. The heat sink clip device according to claim 10, wherein the width of the neck portion is smaller than the bar portion for about 0.1 mm.
12. The heat sink clip device according to claim 1, wherein the heat generating unit connects to an electronic board, the electronic board respectively includes a plurality of keyholes, and the threaded members respectively are secured to the keyholes.
13. The heat sink clip device according to claim 12, wherein the keyhole is a threaded aperture, the threaded member further includes a threaded portion, the threaded portion is engaged with the thread hole, and the blocking ring is provided on the electronic board.
14. The heat sink clip device according to claim 1, wherein the elastic unit is a spring.
15. The heat sink clip device according to claim 1, wherein the elastic unit is an elastic piece, and the elastic unit is provided with an opening configured to be engaged with the threaded member.
16. The heat sink clip device according to claim 15, wherein the elastic piece connects the two threaded members, and the adjacent two threaded members are engaged with the same elastic piece.
Type: Application
Filed: Jan 18, 2011
Publication Date: Jul 19, 2012
Applicant:
Inventors: I-Yung LIN (Taipei), Po-Chih Liu (Taipei)
Application Number: 13/008,593