TWI537540B - Heat dissipation module combined structure and manufacturing method thereof - Google Patents

Description

Heat dissipation module combined structure and manufacturing method thereof

The present invention relates to a heat dissipating module bonding structure and a manufacturing method thereof, and more particularly to a heat dissipating module bonding structure and a manufacturing method thereof, which increase assembly strength and reduce production cost.

According to the development of electronic product technology, the volume of various types of wafers (such as central processing units) is gradually shrinking. In contrast, in order to enable various types of wafers to process more data, the wafers of the same volume can be accommodated more than before. When the number of components in the wafer is more than several times, the heat generated by the components is getting larger and larger. Taking a common central processing unit as an example, the heat generated during operation is sufficient to make the center The entire processor is burned, so heat sinks of various types of wafers have become an important issue.

The current heat dissipating device and the heat dissipating module are composed of a plurality of identical and different heat dissipating components, and the heat dissipating components may be components such as a heat pipe, a heat sink, a heat sink base, and the like, and the heat dissipating components are combined with each other. It is fixed by welding, but for the heat-dissipating components made of aluminum, if welding is to be carried out, it is necessary to apply a number of welding steps before welding in a special welding manner, resulting in the whole The processing steps are too complicated and the processing cost is relatively increased.

In addition, some manufacturers also combine these heat dissipating components with fixing components such as screws. Fixed, but the fixed component can only be screwed to some of the heat dissipating components (such as the heat sink fin set and the heat sink base), and the heat pipe cannot be fixed directly by the screw lock.

Moreover, the prior art is that a hole or a groove is formed in the heat dissipation base to embed the heat pipe in the hole or the groove of the heat dissipation base, so that the heat pipe and the heat dissipation base can be combined. Although the method solves the problems of the above-mentioned welding and screw locking method, the heat pipe indirectly transmits heat through the heat dissipation base, and the heat resistance phenomenon is easily generated due to the gap between the two, resulting in poor heat conduction efficiency; It is known that the heat dissipating base and the heat pipe are assembled in a smooth surface, so that the friction between the heat pipe and the heat dissipation base is small, resulting in a relatively short longitudinal strength of the heat dissipation module.

As described above, the conventional disadvantages are as follows: 1. The production cost is high; 2. The heat conduction efficiency is poor; 3. The axial tightness is relatively inferior.

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

Therefore, in order to effectively solve the above problems, the main object of the present invention is to provide a heat dissipation module assembly structure that increases the assembly strength of the base and the heat pipe.

A secondary object of the present invention is to provide a heat dissipation module assembly structure that increases axial tightness.

A secondary object of the present invention is to provide a heat dissipation module that reduces production costs. Composite Structure.

A secondary object of the present invention is to provide a heat dissipation module assembly structure that improves heat conduction efficiency.

A secondary object of the present invention is to provide a heat dissipation module manufacturing method that increases the assembly strength of a susceptor and a heat pipe.

A secondary object of the present invention is to provide a method for manufacturing a heat dissipation module that increases axial tightness.

A secondary object of the present invention is to provide a method of manufacturing a heat dissipation module that reduces production costs.

A secondary object of the present invention is to provide a method of manufacturing a heat dissipation module that improves heat conduction efficiency.

The present invention provides a heat dissipation module assembly structure including a base and a heat pipe. The base has a first side and a second side, and a receiving groove is formed in the center of the base. a through hole, a receiving portion is formed at the two ends of the through hole, and the receiving groove has a first extending arm and a second extending arm at the intersection of the first side, the through hole Connecting the first and second sides, the through hole is formed with a wall surface adjacent to the first and second extending arms, and a plurality of concave and convex bodies are formed on the wall surface, and the first extending arm forms a first free end. The second extension arm defines a second free end, the heat pipe has an upper end surface and a lower end surface, and the heat pipe is embedded in the accommodating groove and the lower end surface is fitted into the bearing portion and the concave and convex body Applying a mechanical process to press the first and second extension arms to press the heat pipe and causing the upper end surface to be aligned with the first side surface, and at the same time, the lower end surface of the heat pipe is subjected to the downward pressure. The portion in contact with the asperities is deformed, and a phenomenon in which the clasps are engaged with each other is generated.

In order to achieve the above object, the present invention provides a method for manufacturing a heat dissipation module, comprising the steps of: providing a base and a heat pipe, the two sides of the base being defined as a first side and a second side; Processing a venting groove from the first side of the pedestal to the second side, and forming a receiving portion at the two ends of the accommodating groove, and connecting the first and second portions between the two carrying portions One of the side through holes; the machining is performed by bending the second side surface of the base toward the first side surface to apply a pressure to the first side surface at a position where the receiving groove intersects the through hole a first extension arm and a second extension arm; mechanically machining the first and second extension arms adjacent to the through hole, and applying a pressure from the first side surface to the second side surface to form a plurality of concave and convex bodies The heat pipe is placed in the receiving groove of the base and pressure is applied to the first and second extension arms to press the heat pipe.

The first and second extension arms formed by the accommodating groove intersecting the first side surface, and the through holes are formed adjacent to the first and second extension arms by the heat dissipation module assembly structure and the manufacturing method thereof The wall surface is formed with the uneven body, and the first and second extension arms are disposed when the heat pipe is placed in the receiving groove of the base and the first and second extension arms are pressed Pressing the heat pipe and aligning the upper end surface of the heat pipe with the first side surface. At this time, the heat pipe deforms according to the pressure of the lower end surface according to the uneven body, so that the concave and convex body is closely related to the lower end surface of the heat pipe. paste The heat pipe is clamped and clamped, so that the heat pipe cannot slide back and forth, and the axial tightness of the heat pipe and the base is increased to greatly increase the assembly strength of the base and the heat pipe.

In addition, the cost of the combination of the base and the heat pipe by fixing elements such as screws can be saved by the design of the present invention.

1‧‧‧Base

11‧‧‧ first side

12‧‧‧ second side

13‧‧‧ accommodating slots

131‧‧‧Loading Department

14‧‧‧through holes

15‧‧‧First extension arm

151‧‧‧First free end

16‧‧‧Second extension arm

161‧‧‧Second free end

17‧‧‧ wall

18‧‧‧8

2‧‧‧heat pipe

21‧‧‧ upper end

22‧‧‧ lower end

1A is a perspective exploded view of a first embodiment of a heat dissipating module assembly structure of the present invention; FIG. 1B is a perspective assembled view of a first embodiment of the heat dissipating module assembly structure of the present invention; A-A' cross-sectional view of the first embodiment of the heat dissipation module assembly structure; FIG. 1D is a cross-sectional view of the first embodiment of the heat dissipation module assembly structure of the present invention; FIG. 1E is a heat dissipation of the present invention The enlarged cross-sectional view of the first embodiment of the module assembly structure; the second embodiment is a perspective exploded view of the second embodiment of the heat dissipation module assembly structure of the present invention; and the second embodiment is the heat dissipation module combination structure of the present invention. FIG. 3A is a schematic diagram showing the steps of the first embodiment of the heat dissipation module manufacturing method of the present invention; FIG. 3B is a flow chart of the first embodiment of the heat dissipation module manufacturing method of the present invention. Figure.

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 to 1E are perspective exploded view, perspective assembled view and cross-sectional view of a first embodiment of a heat dissipating module assembly structure according to the present invention. As shown, a heat dissipating module assembly structure includes a base. 1 and a heat pipe 2, the pedestal 1 has a first side 11 and a second side 12, and a receiving groove 13 and a through hole 14 disposed at the center of the accommodating groove 13 are formed at the center of the pedestal 1. A receiving portion 131 is formed at a corresponding end of the through hole 14 , and the receiving slot 13 has a first extending arm 15 and a second extending arm 16 at the intersection of the first side 11 . The through hole 14 communicates with the first and second side faces 11 and 12, and the through hole 14 defines a wall surface 17 adjacent to the first and second extension arms 15 and 16, and is formed on the wall surface 17 a plurality of concave and convex bodies 18, the first extending arm 15 forming a first free end 151, the second extending arm 16 forming a second free end 161; the heat pipe 2 has an upper end surface 21 and a lower end surface 22, the heat pipe 2 Embedded in the accommodating groove 13 and fitting the lower end surface 22 to the bearing portion 131 and the uneven body 18 The lower pressure causes the first and second free ends 151, 161 of the first and second extension arms 15, 16 to be pressed against the heat pipe 2 and the upper end surface 21 is flush with the first side surface 11; and the heat pipe 2 In the present embodiment, a flat heat pipe is used for description, but in actual implementation, it may be a round pipe or a D pipe, and is not limited.

Continue to refer to 1A to 1E, through the above-mentioned thermal module combined structure The first and second extension arms 15 and 16 formed by the accommodating groove 13 intersecting the first side surface 11 and the through hole 14 adjacent to the first and second extension arms 15 and 16 are formed. The wall surface 17 is formed on the wall surface 17 (which may be located near the second side), and the concave and convex body 18 is formed. When the heat pipe 2 is placed in the receiving groove 13 of the base 1, After the first and second extension arms 15 and 16 are applied with a pressure, the first and second free ends 151 and 161 of the first and second extension arms 15 and 16 are press-fitted to the heat pipe 2, and the heat pipe 2 is The upper end surface 21 is aligned with the first side surface 11 of the base 1. At this time, the lower end surface 22 of the heat pipe 2 is deformed by pressure, and the deformation corresponds to the corresponding concave and convex body 18 (see the 1D and 1E are the concave and convex portions of the cross-sectional view and enlarged cross-sectional view of B-B', and the bearing portion 131 and the uneven body 18 are closely attached to the lower end surface 22 of the heat pipe 2, and The heat pipe 2 is clamped so that the heat pipe 2 cannot be extracted from the base 1, thereby increasing the axial tightness of the heat pipe 2 and the base 1, so as to greatly increase the assembly strength of the base 1 and the heat pipe 2.

In addition, through the design of the structure, the first and second free ends 151, 161 of the first and second extension arms 15, 16 and the concave and convex bodies 18 protruding at the first and second extension arms 15, 16 The heat pipe 2 is completely press-fitted, so that when the heat pipe 2 and the susceptor 1 are thermally conducted, the heat resistance problem does not occur due to the gap therebetween, thereby greatly improving the heat conduction efficiency; In addition, it is also possible to save the cost of combining and fixing the base 1 and the heat pipe 2 by fixing members such as screws.

Continuing to refer to Figures 2A and 2B, which are perspective exploded views and partial enlarged views of a second embodiment of the heat dissipation module assembly structure of the present invention, the heat dissipation module combination structure The corresponding relationship between the components and the components is the same as that of the heat dissipation module described above, and therefore will not be described herein. However, the main difference between the heat dissipation module assembly structure and the foregoing is that the shape of the uneven body 18 The shape can be changed according to the user's needs, such as a circular or triangular or square or V-shaped geometric shape.

Please refer to FIG. 3A and FIG. 3B and FIG. 1A together, which is a perspective view and a flow chart of a first embodiment of a heat dissipation module manufacturing method according to the present invention. As shown in the figure, a heat dissipation module manufacturing method is shown. Includes the following steps:

S1: providing a base and a heat pipe, the two sides of the base are defined as a first side and a second side; a base 1 and a heat pipe 2 are provided, and the two sides of the base 1 are defined as a first One side 11 and one second side 12.

S2: machining, forming a receiving groove from the first side of the base to the second side, forming a bearing portion at both ends of the receiving groove, and connecting between the two carrying portions and communicating with the a through hole is formed in one of the first and second sides; a pressure is applied to form a receiving groove 13 from the first side 11 of the base 1 toward the second side 12 by machining, and the receiving groove is formed A bearing portion 131 is formed at both ends, and a through hole 14 is formed between the two bearing portions 131 and communicates with the first and second side surfaces 11 and 12.

S3: mechanically processing the first side surface of the base to the first side surface to apply a pressure to the first side direction to bend and form a corresponding one of the first side An extension arm and a second extension arm; and machining is performed by the second side 12 of the base 1 toward the first side 11 Applying a pressure to the intersection of the accommodating groove 13 and the through hole 14 to bend the first side surface 11 to form a corresponding one of the first extending arm 15 and the second extending arm 16, and the first One end of an extension arm 15 defines a first free end 151, and one end of the second extension arm 16 defines a second free end 161.

S4: mechanically processing the first and second extension arms adjacent to the through hole, and applying a pressure from the first side surface to the second side surface to form a plurality of concave and convex bodies; and the first and second extension arms 15 The 16 is adjacent to the through hole 14 and mechanically forms a plurality of concave and convex bodies 18 from the first side surface 11 toward the second side surface 12.

S5: The heat pipe is placed in the receiving groove of the base, and the first and second extending arms are pressurized to press the heat pipe.

Finally, the heat pipe 2 is placed in the receiving groove 13 of the base 1 to apply pressure to the first and second free ends 151, 161 of the first and second extending arms 15, 16 to make the first The first and second free ends 151, 161 of the two extension arms 15, 16 press the heat pipe 2.

The above-mentioned mechanical processing is described in the present embodiment as a press working, but is not limited thereto.

In the process of manufacturing the susceptor, the accommodating groove 13 is formed by pressing the first side 11 toward the second side 12 and applying the pressure. The bearing portion 131 is formed at both ends of the slot 13 , and the through hole 14 is formed at the center of the base 1 , and then the first and second extensions are formed by bending the second side surface 12 toward the first side surface 11 . Arms 15, 16 and then apply pressure The first and second extension arms 15 and 16 are adjacent to the wall surface 17 at the through hole 14 , and the uneven body 18 is formed by pressing the first side surface 11 toward the second side surface 12 , and the heat pipe 2 is placed in the base. After the seat 1 is received in the slot 13, the first and second extension arms 15, 16 are pressured by machining to make the heat pipe 2 flush with the first side 11 of the base 1. The heat pipe 2 is deformed by the pressure, and the bearing portion 131 and the uneven body 18 are closely attached to the lower end surface 22 of the heat pipe 2, and the heat pipe 2 is clamped to form the heat dissipation module. Therefore, the heat pipe 2 cannot be extracted from the base 1, thereby increasing the axial tightness of the heat pipe 2 and the base 1, and greatly improving the assembly strength of the base 1 and the heat pipe 2.

In addition, through the design of the structure, the first and second free ends 151, 161 of the first and second extension arms 15, 16 and the concave and convex bodies 18 protruding at the first and second extension arms 15, 16 The heat pipe 2 is completely press-fitted, so that when the heat pipe 2 and the susceptor 1 are thermally conducted, the heat resistance problem does not occur due to the gap therebetween, thereby greatly improving the heat conduction efficiency; In addition, it is also possible to save the cost of combining and fixing the base 1 and the heat pipe 2 by fixing members such as screws.

As described above, the present invention has the following advantages over conventional ones: 1. increasing assembly strength; 2. increasing axial tightness; 3. reducing production cost; 4. improving thermal conductivity.

The present invention has been described in detail above, but the above is only the present invention. One preferred embodiment is not intended to limit the scope of the practice of the invention. That is, the equivalent changes and modifications made by the scope of the present application should remain within the scope of the patent of the present invention.

1‧‧‧Base

11‧‧‧ first side

12‧‧‧ second side

13‧‧‧ accommodating slots

131‧‧‧Loading Department

14‧‧‧through holes

15‧‧‧First extension arm

16‧‧‧Second extension arm

17‧‧‧ wall

18‧‧‧8

2‧‧‧heat pipe

21‧‧‧ upper end

22‧‧‧ lower end

Claims (7)

A heat dissipation module assembly structure includes: a base having a first side surface and a second side surface; a receiving groove and a through hole are formed in a center of the base, and the corresponding position of the receiving groove relative to the through hole A receiving portion is formed at the two ends, the receiving slot has a first extending arm and a second extending arm at the intersection of the first side, the through hole communicates with the first and second sides, and the through hole is adjacent to the through hole Forming a wall surface on the first and second extension arms, and forming a plurality of concave and convex bodies on the wall surface, the first extension arm forming a first free end, and the second extension arm forming a second free end; a heat pipe having an upper end surface and a lower end surface, the heat pipe is embedded in the accommodating groove, and the lower end surface is fitted with the bearing portion and the concave and convex body to increase the axial tightness, the first The first and second free ends of the two extension arms press the heat pipe and the upper end face is flush with the first side surface to increase the longitudinal tightness. The heat dissipation module bonding structure according to claim 1, wherein the heat pipe is a flat heat pipe. The heat dissipation module bonding structure according to claim 1, wherein the concave and convex system has a circular or triangular or square or V-shaped geometric shape. A method for manufacturing a heat dissipation module includes the steps of: providing a base and a heat pipe, the two sides of the base being defined as a first side and a second side; and machining is performed by the first side of the base An accommodating groove is formed in the second side, and a bearing portion is formed at both ends of the accommodating groove, and the bearing is located at the two ends And passing through one of the first and second side through holes; and mechanically applying pressure from the second side of the base to the first side to the intersection of the receiving groove and the through hole Forming one of the first extension arm and the second extension arm in a direction of the first side surface; mechanically machining the first and second extension arms adjacent to the through hole, from the first side to the second A plurality of concave and convex bodies are formed by applying pressure in the direction of the side surface; the heat pipe is placed in the receiving groove of the base, and the first and second extending arms are pressed to press the heat pipe. The method for manufacturing a heat dissipation module according to claim 4, wherein the machining is press working. The method for manufacturing a heat dissipation module according to claim 5, wherein the heat pipe and the base are tightly coupled by mechanical processing. The method for manufacturing a heat dissipation module according to claim 6, wherein the machining is press working.