CN101207989A - Fixing structure of heat sink - Google Patents

Abstract

A heat sink fixing structure for fixing a base of a heat sink to a heat generating element, the heat generating element being fixedly disposed on a substrate, comprising: the limiting part is fixedly arranged on the base plate and close to the periphery of the heating element, and is provided with an accommodating space for coating the base of the heat radiating piece so as to limit the movement of the heat radiating piece; the pressing parts are respectively fixedly arranged on the surfaces of the bases of the heat dissipation parts, which are back to the heating element, and are provided with through parts forming through holes with the surfaces, and the through parts are arranged in the middle of the surfaces; the bent rod is provided with a first bent part at one end and a second bent part at the other opposite end, the part of the bent rod between the first bent part and the second bent part penetrates through the through parts of the two pressing parts, the front ends of the first bent part and the second bent part are respectively provided with a buckle piece, and the two buckle pieces are respectively buckled on the two buckle parts, so that the base of the heat dissipation piece is stably and tightly fixed on the heating element through the deformation of the bent rod.

Description

Heat sink fixing structure

technical field

The present invention relates to a fixing structure, more specifically, to a fixing structure of a heat sink.

Background technique

With the rapid development of semiconductor technology and integrated circuits, integrated circuit chips integrating powerful computing functions have emerged one after another. These integrated circuit chips greatly increase the processing speed of data processing devices such as personal computers, servers, and notebook computers. On the other hand, in order to consider that the size of the data processing device cannot be expanded with the increase of the data processing speed, these integrated circuit chips must naturally be integrated in a chip with a very small size.

The above situation leads to higher heat generated by the integrated circuit chip with fast processing speed during operation, and the heat cannot be effectively dissipated, which easily leads to failure of the integrated circuit chip, and further causes failure of the data processing device. Accordingly, how to effectively fix the heat sink on the integrated circuit chip, so that the heat during the operation of the integrated circuit chip can be dissipated through the heat sink has become a very important issue.

Please refer to FIG. 1 , which is a structural schematic diagram of an existing radiator fixing structure. As shown in the figure, the existing radiator fixing structure is used to fix the base 101 of the radiator 10 on the heating element (not shown), and the heating element is fixed on the substrate 11. The existing radiator fixing structure mainly includes The limiting part 12, the limiting part 12 is provided with a buckle part 121 near the corner edge and a pivot hole 122 is provided at the opposite corner edge; and a curved rod 13, which has a pivot part 131 The bent portion 132 and the hook portion 133 . Wherein, the pivoting portion 131 is pivotally connected to the pivoting hole 122, and when the bending portion 132 is pressed against the base 101 due to the pivoting of the curved rod 13, the curved rod 13 is further lowered toward the base 101. Press, so that the hook portion 133 is buckled to the buckle portion 121, thereby fixing the heat sink 10 on the heating element.

The disadvantage of the above conventional heat sink fixing structure is that when the bent portion 132 is pressed against the base 101 due to the pivoting of the curved rod 13 , the contact point between the bent portion 132 and the base 101 will be affected by the force. The heat sink 10 is tilted. Since the base 101 and the heating element are fixed to the pressing position determined by the deformation of the bent portion 132, the tilt of the heat sink 10 will cause the bent portion 132 to be deformed. The pressing position of the heat sink is changed, but once the position is changed, the base 101 of the heat sink 10 and the heating element will not be closely combined, which will affect the heat dissipation effect of the heat dissipation material between the base 101 and the heating element.

To sum up, how to provide a heat sink fixing structure capable of stably and tightly fixing the base of the heat sink on the heating element has become an urgent problem to be solved.

Contents of the invention

In order to solve the aforementioned shortcomings of the prior art, the present invention provides a heat sink fixing structure capable of stably and tightly fixing the base of the heat sink on the heating element.

The radiator fixing structure of the present invention is used to fix the base of the radiator on the heating element. The heating element is fixed on the substrate. The position of the periphery of the heating element has an accommodating space for covering the base of the heat sink to limit the movement of the heat sink, and the limiting portion is respectively provided with two buckle portions near the two corners; At least one pressing part, which is respectively fixed on the surface of the base of the heat sink facing away from the heating element, and has a through part forming a through hole with the surface, and the through part is arranged in the middle of the surface; the curved rod, There is a first bent portion at one end and a second bent portion at the opposite end, and a part of the curved rod interposed between the first bent portion and the second bent portion passes through the through portion of the two pressing portions, To make the curved rod rotate with the through portion as a fulcrum, the front ends of the first bending portion and the second bending portion are respectively provided with buckling parts, and the two buckling parts are respectively buckled on the two buckling parts , so that the base of the heat sink is fixed on the heating element through the deformation of the curved rod.

Compared with the prior art, the heating element fixing structure of the present invention can define the curved rod in the middle of the base of the heating element through the pressing part fixed on the middle part of the surface of the heat sink base facing away from the heating element Partial application of force can stably and tightly fix the base of the heat sink on the heating element.

Description of drawings

FIG. 1 is a schematic diagram of an existing radiator fixing structure;

2a and 2b are schematic diagrams of the heat sink fixing structure of the present invention; and

FIG. 3 is a schematic diagram of the heat sink fixing structure of the present invention after being fixed.

Symbol Description

10 radiator

101 base

11 substrate

12 limit part

121 buckle part

122 pivot holes

13 curved bars

131 pivot joint

132 bending part

133 Hook Department

20 radiator

201 base

201a surface

201b through hole

21 heating element

21a surface

22 substrates

23 limit part

231 storage space

232 buckle part

24 Press Department

241 Penetrating Department

241a fixed part

25 curved rod

251 The first bending part

252 second bending part

251a, 252a buckle

26 fixing parts

Detailed ways

The implementation of the present invention is described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

Please refer to Fig. 2a and Fig. 2b, the radiator fixing structure of the present invention is used to fix the base 201 of the radiator 20 on the heating element 21, and the heating element 21 is fixed on the substrate 22. The radiator fixing structure of the present invention includes The limiting part 23 , the pressing part 24 , the curved rod 25 and the fixing part 26 .

The limiting portion 23 is fixed on the substrate 22 at a position close to the periphery of the heating element 21 , and has a base 201 for wrapping the heat sink 20 so as to limit the accommodating space 231 for the heat sink 20 to move. The limiting portion 23 is respectively provided with two locking portions 232 near the two corners. In this embodiment, the two locking portions 232 are disposed at two corners on opposite sides of the limiting portion 23 .

The two pressing parts 24 are respectively fixed on the surface 21a of the base 201 of the heat sink 20 facing away from the heating element 21. The two pressing parts 24 have a through part 241 forming a through hole 201b between the surface 201a. The through part 241 is disposed in the middle of the surface 201a. Specifically, the two pressing portions 24 are respectively fixed on two opposite peripheries of the surface 21 a of the base 201 of the heat sink 20 facing away from the heating element 21 .

In this embodiment, the two pressing parts 24 further have a fixing part 241a, which is used to fix the two pressing parts 24 to the base 201 of the heat sink 20 through the fixing part 26 and the fixing part 241a to avoid the heat dissipation. surface of element 21. More specifically, the position of the base 201 of the heat sink 20 relative to the fixing portion 241a has a screw hole or a concave hole (not shown), the fixing portion 241a is a through hole, and the fixing member 26 is opposite to the screw hole and the concave hole (not shown). Through-hole screws or rivets.

The curved rod 25 has a first bent portion 251 at one end and a second bent portion 252 at the opposite end, and the curved rod 25 passes through a portion between the first bent portion 251 and the second bent portion 252 The through portion 241 of the two pressing portions 24 is used to make the crank 25 rotate around the through portion 241 as a fulcrum. Front ends of the first bending portion 251 and the second bending portion 252 respectively have buckling members 251 a and 252 a.

Please refer to FIG. 3 , which is a schematic diagram of the heat sink fixing structure of the present invention after being fixed. As shown in the figure, the two buckle parts 251a and 252a are respectively buckled on the two buckle parts 232 at the same time, so that the base 201 of the heat sink 20 is fixed on the surface of the heating element 21 through the deformation of the curved rod 25 superior.

It should be added that, in another embodiment of the present invention, the two locking portions 232 are disposed at two corners on the same side of the limiting portion 23 . In contrast, the first bending portion 251 and the second bending portion 252 are bent in the same direction, so that the buckling components 251 a and 252 a can be buckled to the two buckling portions 232 respectively.

The above-mentioned embodiments are only illustrative to illustrate the principles and effects of the present invention, and are not intended to limit the present invention. Any person skilled in the art can modify and change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be based on the claims.

Claims (7)

1. A radiator fixing structure, which is used to fix the base of the radiator on the heating element, the heating element is fixed on the substrate, and the radiator fixing structure includes: The limiting part is fixed on the base plate at a position close to the periphery of the heating element, and has an accommodating space for covering the base of the heat sink to limit the movement of the heat sink. The limiting part is located close to Two buckle parts are respectively arranged at the two corner edges; At least one pressing part, which is respectively fixed on the surface of the base of the heat sink facing away from the heating element, and has a through part forming a through hole with the surface, and the through part is arranged in the middle of the surface; a curved rod having a first bent portion at one end and a second bent portion at the opposite end, the curved rod is inserted through the pressing portion through the portion between the first bent portion and the second bent portion part, so that the curved rod rotates with the through part as the fulcrum, the front ends of the first bending part and the second bending part respectively have buckles, and the two buckles are respectively buckled on the two buckles. buckle, so that the base of the heat sink is fixed on the heating element through the deformation of the curved rod. 2. The heat sink fixing structure according to claim 1, wherein the two buckling portions are disposed at two corner edges on opposite sides of the limiting portion. 3. The heat sink fixing structure according to claim 1, wherein the two locking portions are disposed at two corner edges on the same side of the limiting portion. 4. The heat sink fixing structure according to claim 1, which has two pressing parts, and the two pressing parts are respectively fixed on two opposite peripheries of the surface of the base of the heat sink facing away from the heating element, and the curved A portion of the rod interposed between the first bending portion and the second bending portion passes through the through portion of the two pressing portions. 5. The heat sink fixing structure according to claim 1, further comprising a fixing member, and the pressing part further has a fixing part for fixing the pressing part to the base back of the heat sink through the fixing part and the fixing part the surface of the heating element. 6. The heat sink fixing structure according to claim 5, wherein the base of the heat sink has a screw hole relative to the fixing part, the fixing part is a through hole, and the fixing part is opposite to the screw hole and the through hole. screw. 7. The heat sink fixing structure according to claim 5, wherein the base of the heat sink has a concave hole relative to the fixing part, the fixing part is a through hole, and the fixing part is opposite to the concave hole and the through hole rivet.

Images