JP3086613U - Heat sink fixture - Google Patents

Abstract

(57) [Summary] (Modified) [PROBLEMS] To provide a heat dissipation device clip for fixing a heat dissipation device to an electronic unit. SOLUTION: The heat radiating device fixing device of the present invention includes a base 16, a frame 12, and an operation rod 14, and the base is located at the bottom of the circuit board module, and a plurality of hooks 162 installed thereon are provided on the circuit board module. Extend outside. The position of the heat dissipating device can be limited by mounting the frame around the heat dissipating device and engaging the hooks on the base. Further, a pivot hole 129 and a cam plate 128 are provided in this frame, and a locking groove is provided at the bottom of the cam plate. The operating rod consists of an operating part, a locking part and a pivot 14
8 and the pivot pivots in the pivot hole of the frame. When the operating portion is pulled, the locking portion can be rotated along the cam plate. When the operating portion is rotated to a certain extent, the locking portion of the operating rod locks the locking groom 130 of the frame, and the heat radiating device can be tightly fixed.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a fixing device for a heat radiating device, and more particularly to a fixing device for a heat radiating device that can be conveniently and stably locked to a microprocessor module.

[0002]

[Prior art]

 Since the CPU is the central unit where the computer processes data, and its overall function in the computer is closely related to the CPU, it is considered that a CPU with high frequency and high processing speed needs to be further developed. I'm betting. However, the amount of heat generated by the CPU due to high frequency or high speed processing is increasing, which threatens the function and stability of operation of the CPU. In order to operate the CPU normally, it is necessary to immediately discharge the heat generated from the CPU. Therefore, in the industry, conventionally, in order to achieve a better heat dissipation effect, it is considered that a heat dissipation device having a good heat dissipation effect is attached to the CPU, and the CPU is brought into close contact with the heat dissipation device by a fixture. In this regard, many conventional fixing techniques have been disclosed. For example, as described in Taiwan Patent No. 309128 and US Pat.

[0003]

[Problems to be solved by the invention]

 However, all the fixing devices of the conventional heat radiating devices have some disadvantages. For example, the fixing device of the heat radiating device disclosed in the Taiwanese publication No. 309128 is a method of designing and connecting the fixing band and the fixing member. However, it is inconvenient to install the fixing device and the fixing force is sufficiently stable. I can't say. Further, since the heat-dissipating device fixing device disclosed in US Pat. No. 5,486,981 has an integrally formed structure, it is extremely inconvenient to attach or detach the device, and it is quite difficult to manufacture. Further, since all of the heat radiating device fixing devices have an elongated elastic piece structure, the engaging area with the heat radiating device is small, it is not possible to firmly engage with the heat radiating device, and there is a possibility that the fixing device may come off when vibrated. Not suitable for use with large heat sinks. Since these heat radiator fixing devices are all assembled by pressing, the moment of pressing force is small, a large operating force is required, and the power is wasted. Therefore, how to stably attach the heat radiator to the CPU and design a heat radiator fixture that is easy to remove is a problem to be solved.

[0004]

[Purpose of the invention]

 An object of the present invention is to provide a fixing device for a heat radiating device which has a large engagement area and can be stably held. Another object of the present invention is to provide a fixing device for a heat radiating device that can be easily attached and detached and saves power. It is another object of the present invention to provide a large-sized heat radiator fixing device applied to a novel CPU.

[0005]

[Means for Solving the Problems]

 The heat radiator fixture includes a base, a frame, and an operating rod. The base is located at the bottom of the circuit board module, and a plurality of hooks disposed on the base extend to the outside of the circuit board. The position of the heat dissipating device can be limited by mounting the frame around the heat dissipating device and engaging the hook on the base. A pivot hole and a cam plate are provided in this frame, and a locking groove is provided at the bottom of the cam plate. The operating rod includes an operating portion, a locking portion, and a pivot, and the pivot pivots in a pivot hole of the frame. When the operating part is pulled, the locking part can be rotated along the cam plate. When the operating part is rotated to a certain extent, the locking part of the operating rod is locked to the locking groom of the frame, and the heat radiating device can be tightly fixed.

[0006]

【Example】

 An embodiment of the present invention will be described in detail with reference to the drawings, in which a fixing device of a heat radiating device according to an embodiment of the present invention is described.

FIG. 1 is a three-dimensional exploded view of the heat radiator fixture 1, the heat radiator 2, and the circuit board module 3 of the present invention. The heat dissipating device 2 includes a base 22 and a plurality of fins 24 installed on the base 22. The base 22 has side edges extending to the periphery with respect to the fin 24, and both side edges thereof. The portion is provided with a groove 26 for the heat radiating device fixing tool 1 to press and fix the heat radiating device 2 for positioning (described later). The circuit board module 3 includes a circuit board 32 and a CPU module 38 fixed on the circuit board 32, or may include other memory modules. A plurality of mounting holes 34 and positioning holes 36 are provided. The fixing device 1 of the present invention comprises a frame 12, an operation rod 14 and a base 16, and the frame 12 and the operation rod 14 are integrally formed. The base 16 is located at the bottom of the circuit board 32, the radiator 2 is attached to the CPU module 38, and the base 16 is provided with a hook 162 at a position corresponding to the mounting hole 34 of the circuit board 32. Reference numeral 162 extends over the circuit board 32 through the mounting hole 34 and engages the frame 12 and the operating rod 14 which are combined together.

FIG. 3 is an exploded view showing the frame 12 and the operation rod 14 of the fixture 1 of the heat radiating device according to the present invention. The frame 12 is surrounded by vertically opposed sidewalls 120 and horizontally opposed beams 121, with positioning pins 122 extending further from the bottom of the sidewalls 120. Gibbs 123 are punched inwardly on the side walls 120, and bent from both ends of the side walls 120 toward the beam 121 to form elastic arms 124. Further, locking holes 125 are provided at the ends of the elastic arms 124, and both ends of the beam 121 are bent vertically downward from the respective edges to extend the locking plate 126. Both edges of the beam 121, which are located substantially at the center of the beam 121, also extend vertically downward. A bearing plate 127 having a pivot hole 129 is extended from the outer edge, and a cam plate 128 having a locking groove 130 is extended from the inner edge. As can be clearly seen in FIG. 4, one side edge of the cam plate 128 is formed in a substantially semicircular shape, and the locking groove 130 is provided at the terminal end extending in the semicircular shape, that is, at the bottom of the cam plate 128. Place. The operating rod 14 includes an operating portion 142, a lever 144 extending downward in parallel from both ends of the operating portion 142, and a vertical bend from an end of the lever 144. And a pivot 148 extending outward from the operation unit 142. With reference to FIG. 1, the operating rod 14 is integrated with the frame 12 through a pivot hole 129 of the frame 12 by a pivot 148.

FIG. 5 is a structural view in which the fixture 1 of the heat radiator of the present invention fixes the heat radiator 2 to the circuit board module 3. The frame 12 and the operating rod 14 combined with each other are fitted around the heat dissipation device 2 from the upper surface thereof, and the positioning pins 122 on the side walls 120 of the frame 12 are inserted into the positioning holes 36 of the circuit board 32 to insert the frame 12. Position it. The cam plate 128 corresponds to the groove 26 of the base 22 and is partially inserted. The free ends of the four elastic arms 124 of the frame 12 are pressed to lock the hooks 162 of the base 16 in the locking holes 125. As described above, since the frame 12 is completely fixed, the locking plate 126 on the beam 121 side of the frame 12 is also positioned accordingly. In addition, by pressing the peripheral portion of the base 22 of the heat radiating device 2 to restrict its vertical movement, and by providing a gib 123 on the side wall 120, it is in close contact with the fin 24 of the heat radiating device 2 to restrict its horizontal movement. The radiator 2 can be fixed in advance.

Still referring to FIG. 6, the lever 144 of the operating rod 14 is formed sufficiently higher than the fin 24, and rotates the operating portion 142 to move above the fin 24, and the pivot 148 rotates in the pivot hole 129. However, the locking portion 146 rotates along the semicircular edge of the cam plate 128. Further, as shown in FIG. 7, the lever 144 of the operating rod 14 is rotated horizontally, and the locking portion 146 is rotated up to the bottom of the cam plate 128 to be raised, and the base 22 of the heat radiating device 2 is brought into contact. Tighten the radiator 2 firmly.

FIGS. 8, 9 and 10 are enlarged views showing a continuous cooperative relationship between the locking portion 146 and the cam plate 128 when the operating rod 14 is rotated. First, the locking portion 146 is positioned horizontally at the starting position of the semicircular edge of the cam plate 128, rotates along the edge, and finally its end position, that is, the locking groove 130 of the cam plate 128. It is rotated and made to rise. During this time, the locking part 146 moves gradually, and the moment arm of the lever 144 is considerably long, so that this operation can be very labor-saving. Further, when the locking portion 146 is locked to the locking groove 130, the operating rod 14 is prevented from rebounding and the heat radiation device 2 being loosened when receiving the vibration.

FIG. 11 and FIG. 12 are views showing the operation of engaging the fixture 1 and the heat radiator 2 of the heat radiator of the present invention. First, as shown in FIG. 11, the operating rod 14 is in a free state in which no acting force is applied to the base 22. At this time, the pivot 148 of the operation rod 14 is located in the pivot hole 129, and the bottom of the cam plate 128 and its locking groove 130 are located in the groove 26 of the base 22. Further, as shown in FIG. 12, the locking portion 146 of the operating rod 14 is rotated until it contacts the base 22 and is stopped, so that the pivot 148 abuts on the upper portion of the pivot hole 129 and the beam 121 is raised. To move the cam plate 128 upward. Further, since the locking groove 130 is exposed from the groove 26, the locking portion 146 can continue to rotate and lock to the locking groove 130, and at this time, the hook portion 162 becomes the elastic arm 124. And the locking part 146 is pressed tightly against the base 22 by the downward pulling force on the beam 121.

[0013]

[Effect of the invention]

 As described above, the fixing of the heat-dissipating device fixture 1 of the present invention to the heat-dissipating device 2 includes the limitation of the position around the heat-dissipating device 2 and the pressing, the fixed area is large, and the device is firmly tightened. Effectively prevented.

In general, the present invention has a requirement for utility model registration, and should be registered by law. Further, the above is merely a specific embodiment made by the present application, and does not limit the scope of claims of the present invention. Modifications or changes of details that can be made based on the present invention are all claims of the present invention. It belongs to the range.

[Brief description of the drawings]

FIG. 1 is a three-dimensional exploded view of a fixing device of a heat radiating device, a heat radiating device, and a circuit board according to the present invention.

FIG. 2 is a combined three-dimensional view of the heat dissipation device and the circuit board and the base of the heat dissipation device fixing device of the present invention.

FIG. 3 is a three-dimensional exploded view of a frame and an operating rod of the fixing device of the heat radiating device according to the present invention.

FIG. 4 is a partial cross-sectional view of the frame of the fixing device of the heat radiator according to the present invention.

FIG. 5

FIG. 6

FIG. 7 is a process diagram of a continuous operation in which the heat radiating device fixing device of the present invention fixes the heat radiating device.

FIG. 8

FIG. 9

FIG. 10 is a partially enlarged view of each of FIGS. 5, 6 and 7;

FIG. 11

FIG. 12 is an operational view of the heat dissipation device fixing device of the present invention for locking the heat dissipation device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 radiator fixing device 12 frame 120 side wall 121 beam 122 positioning pin 123 gib 124 elastic arm 125 locking hole 126 locking plate 127 receiving plate 128 cam plate 129 pivot hole 130 locking groove 14 operating rod 142 operating portion 144 lever 146 Locking portion 148 Axis 16 Base 162 Hook 2 Heat dissipation device 22 Base 24 Fin 26 Groove 3 Circuit board module 32 Circuit board 34 Mounting hole 36 Positioning hole 38 CPU module

Claims (30)

[Utility model registration claims] 1. A radiator fixing device for fixing a radiator to an electronic component, the radiator fixing device supporting the radiator, and a base installed on a bottom surface of the electronic component; While fitting on the base,
A frame for opening a pivot hole, an operation part, a locking part, and a pivot are provided. The pivot is pivotally attached to the pivot hole, and when the operation part is pulled, the locking part moves from the start position to the end point position. And an operating rod that presses the heat dissipating device tightly when located at the end point position. 2. A frame is provided with a cam plate at a position corresponding to a pivot hole, and a locking groove for locking when the locking portion is located at an end point position is provided at a bottom portion of the cam plate. The fixture for a heat radiating device according to claim 1, wherein: 3. The fixture according to claim 2, wherein the cam plate has a semicircular edge. 4. The fixture according to claim 1, wherein the base has a plurality of hooks. 5. The heat radiating device according to claim 4, wherein the frame has a plurality of elastic arms extending outward, and a locking hole for locking the hook is provided on the elastic arm. Equipment fixtures. 6. The radiator fixing device according to claim 1, wherein the frame is surrounded by opposed side walls and opposed beams. 7. The radiator fixing device according to claim 6, wherein a gib is provided on the side wall. 8. The heat-dissipating device fixing device according to claim 6, wherein a plurality of locking plates extend from an edge of the beam. 9. The heat-dissipating device fixing device according to claim 6, wherein a positioning pin is provided at a bottom of the side wall. 10. The radiator fixing device according to claim 1, wherein a lever is provided between the operating portion and the locking portion of the operating rod, and the lever is installed higher than the radiator. 11. A radiator fixing device for fixing a radiator to an electronic component, comprising: a frame which is mounted and fixed around the radiator to open a pivot hole and a cam plate; A locking portion and a pivot, wherein the pivot is pivotally attached to the pivot hole and the operating portion is pulled, whereby the locking portion rotates to a certain extent along the cam plate to engage the locking portion with the cam plate. The radiator is stopped and pressed tightly. 12. The fixing device according to claim 11, wherein a locking groove is provided at a bottom portion of the cam plate, and the locking portion rotates and locks to a certain degree. 13. The fixing device according to claim 12, wherein the cam plate has a semicircular edge. 14. The fixing device according to claim 11, wherein the frame is surrounded by opposing side walls and opposing beams. 15. The radiator fixing device according to claim 14, wherein a gib is provided on the side wall. 16. The fixture according to claim 14, wherein the plurality of locking plates are extended by bending the edge of the beam. 17. The fixing device according to claim 14, wherein a positioning pin is provided at a bottom of the side wall. 18. The fixing device according to claim 11, wherein a lever is provided between the operating portion of the operating rod and the locking portion, and the lever is formed higher than the heat radiating device. 19. A radiator fixing device for fixing the radiator to an electronic component, the radiator fixing fixture being fixed around the radiator, comprising a side wall and a beam opposed to each other, a gib provided on the side wall, By providing a locking plate on the frame, a frame that restricts the periphery of the heat radiating device, pivots on the frame, can rotate between both positions, and when the operation rod is in the first position, the operation rod is free. When located at the two positions, the operating rod presses against the heat radiating device. 20. The heat radiation device according to claim 19, further comprising an operating portion, a lever, a locking portion, and a pivot, wherein the locking portion is formed perpendicular to the operating portion, the lever, and the pivot. Equipment fixtures. 21. A pivot hole and a cam plate are provided in a beam of a frame, and when the operation rod is rotated by aligning the pivot hole with the pivot, the locking portion rotates along the cam plate. 21. The fixing device for a heat radiating device according to claim 20, wherein: 22. The cam plate according to claim 2, wherein the cam plate has a semicircular edge, and a locking groove is provided at a bottom thereof, and the locking portion is locked by the locking groove.
The heat-dissipating device fixing device according to 1. 23. The fixing device according to claim 19, wherein a positioning pin is provided at a bottom of the side wall. 24. A heat radiator fixing device for fixing a heat radiator to an electronic component, the frame having a pivot hole provided therein, and a frame provided with a pivot hole; A lever, a locking portion, and a pivot, wherein the pivot pivots in the pivot hole, the lever is formed higher than the heat radiating device, and the operating portion is operated to change from a vertical direction to a horizontal direction. The stopper may be rotatable from a horizontal direction to a vertical direction, and the locking portion may include an operating rod for pressing the heat radiating device when the stopper is positioned in the vertical direction. 25. A frame corresponding to the pivot hole is provided with a cam plate, and a locking groove is provided at a bottom portion of the cam plate, so that the locking portion is locked when positioned vertically. The heat-dissipating device fixing device according to claim 24, wherein: 26. The fixture according to claim 25, wherein the cam plate has a semicircular edge. 27. The fixture according to claim 24, wherein the frame is surrounded by opposing side walls and opposing beams. 28. The fixing device according to claim 27, wherein a gib is provided on the side wall. 29. The fixing device according to claim 27, wherein an edge of the beam is bent to extend a plurality of locking plates. 30. The fixing device according to claim 27, wherein a positioning pin is provided at a bottom of the side wall.