CN1986106A - Compression molding method for heat pipes and cooling fins - Google Patents

Abstract

A method for pressing and forming a heat pipe and a heat dissipation fin comprises the following steps: providing a plurality of radiating fins and at least one heat pipe, forming at least one annular protruding wall with a through hole on the surface of each radiating fin, or forming the annular protruding wall with the through hole and an axial and/or radial groove, and arranging fasteners at the end edges of two sides; fastening a plurality of radiating fins by using fasteners to form a fin group arranged at intervals; the heat pipe is arranged in the through holes of the plurality of radiating fins in a penetrating way; performing a pressing forming process, namely applying a strong force to the surface of the annular protruding wall of the heat dissipation fin to generate extrusion deformation by matching a processing jig with a plurality of mould pressing pieces and a pressure applying technology, so as to form a pressing deformation combined body with the heat pipe; and finishing the finished product of the heat dissipation device.

Description

Compression molding method for heat pipes and cooling fins

technical field

The present invention relates to the compression molding method of heat pipes and heat dissipation fins, especially a molding method with side pressure compression and uniform force to tightly combine heat pipes and heat dissipation fins, so as to improve the compression combination and make good rate, making a heat sink with high bonding and heat transfer efficiency.

Background technique

It is known that the heat dissipation devices currently used in electronic components, especially the heat dissipation devices that require better heat dissipation efficiency, are all heat dissipation devices composed of heat pipes and heat dissipation fins, so as to quickly transfer the heat generated by electronic components to make a large area. The combination design and manufacturing method of the heat pipe and fins will directly reflect the heat transfer efficiency and heat dissipation rate, so a good combination tightness and manufacturing method will improve the heat dissipation performance of the composed heat sink.

For example, the invention patent case of "Combining Method of Heat Pipe and Heat Sink" in Taiwan Patent Gazette No. 449514, the focus of this patent case is to apply a layer of solder on the joint surface where the heat pipe and heat sink are connected; After the tube and the heat sink are joined, they are heated in a vacuum heating furnace, so that the solder melts during the heating process to produce capillary phenomenon and penetrate into the joint surface of the heat pipe and the heat sink to achieve a tight combination.

Also, Taiwan Patent Publication No. I236337 "Heat Pipe and Radiation Fin Forming Method" invention patent case, the focus of this patent case lies in:

1. Coat the part where the heat pipe is to be connected with the heat dissipation fins with a metal heat conduction medium layer;

2. Joining the cooling fins to the part of the heat pipe coated with a heat-conducting medium layer; and

3. After heating the heat conduction medium layer to melt it between the heat pipe and the heat dissipation fins, it is then cooled.

Furthermore, Taiwan Patent Publication No. 518927 "Combining Method and Combining Structure of Radiating Fins and Heat Conducting Tubes of Micro Radiators" patent case, the focus of this patent case is to coat the periphery of the heat conducting tubes of micro radiators Curing glue; before the above curing glue is cured, use two sets of pressing sheets of two pressing molds to respectively insert into the gap between the two cooling fins, and at the same time press close to the direction of the heat pipe, so that the flange of the cooling fin and the The circumference of the heat pipe is tightly joined.

The above-mentioned patents all utilize a heat-conducting medium or curing glue that can be melted between the heat-conducting tube and the heat-dissipating fin, and cooperate with heating or pressurization to achieve the combination of the heat-conducting tube and the heat-dissipating fin. It is filled between the heat pipe and the cooling fins, or evenly glued together, it is easy to form gaps to affect the bonding and heat transfer efficiency, and there are chemical substances in the heat conduction medium and curing glue, which is likely to cause harm to the human body and the environment.

In addition, Taiwan Patent Publication No. I241156 "Combining Method of Heat Piping and Radiating Fins" invention patent case, the focus of this patent case is to set an opening on the cooling fins; make the heat pipe rotate and make the heat dissipation The fins move toward the heat pipe; when the opening of the heat dissipation fin contacts the heat pipe, the rotation of the heat pipe is maintained to cause friction between the heat pipe and the heat dissipation fin, and the heat generated by the friction makes the friction surface in a plastic melting state; The pressure fuses the heat pipe and fin openings together. However, although this method has no harm to the human body and the environment from the above-mentioned chemical substances, the plastic melting caused by the friction of dissimilar metals still has the problem of uniformity of the plastic melting part, and it is easy to form gaps to affect the bonding and heat transfer efficiency.

Furthermore, in other practical manufacturing methods of heat pipes and heat dissipation fins, the industry adopts a piercing and pressure bonding method, as shown in Figures 1 and 2. And get most heat dissipation fins 13 with through holes 14 on the end surface, that is, use the through holes 14 to set the heat dissipation fins 13 on the heat pipe 11 piece by piece, so as to cooperate with stamping parts and automatic machines (not shown), Using the pressing process one by one, the heat dissipation fins 13 are tightly bonded corresponding to the outer diameter of the heat pipe 11; however, the aforementioned pressing and pressing manufacturing method is time-consuming, and what’s more, each heat dissipation fin 13 During the pressing process, the punching vibration of the machine tool and the manufacturing tolerance of the through hole will affect the alignment and tightening effect of the cooling fins 13 and the heat pipe 11, and it is easy to generate unbonded gaps 15 at different positions. It causes problems such as high defect rate, poor heat transfer efficiency and heat dissipation effect.

Contents of the invention

The main purpose of the present invention is to solve the above-mentioned traditional deficiency and avoid the existence of the deficiency. The present invention redesigns the pressing forming method of the heat pipe and the heat dissipation fin, utilizes the design of the through hole on the surface of the heat dissipation fin and its ring protrusion wall, and cooperates with a simple Fixture structure, lateral pressure technology and component deformation combination process, the tight combination of heat pipes and heat dissipation fins, improve the yield rate of the tight combination, and make a heat dissipation device with high combination and heat transfer efficiency to provide for use Or cheaper but high heat transfer efficiency and practical cooling device combined.

In order to achieve the above-mentioned purpose, the pressing forming method of heat pipe and cooling fin of the present invention, the method comprises:

Provide most cooling fins;

At least one annular protruding wall with through holes is formed on the surface of each of the above heat dissipation fins, or an annular protruding wall with through holes and axial and/or radial slits is formed, and buckles are provided on the ends of both sides. pieces;

Most of the cooling fins are buckled by fasteners to form fin groups arranged at intervals;

providing at least one heat pipe;

Put the heat pipe through the through holes of most cooling fins;

The pressing molding process is carried out, and the ring protruding walls directly perpendicular to the heat dissipation fins are simultaneously and evenly exerted strong pressure, so that the pressing force of the compression deformation of each ring protrusion wall and heat pipe is combined into one; The heat pipes are combined to make a heat sink.

Please refer to the following detailed description of the preferred embodiments of the present invention and the accompanying drawings, so as to further understand the technical content of the present invention and its purpose and effect.

Description of drawings

FIG. 1 is a schematic diagram of a conventional press-through method combined with heat pipes and heat-dissipating fins for pressing.

FIG. 2 is a partially enlarged schematic diagram of a conventional press-through method combined with heat pipes and heat dissipation fins for extrusion molding.

Fig. 3 is a schematic diagram of the method steps of the first embodiment of the present invention.

FIG. 4 is a schematic diagram of the second compression application of the method steps of the first embodiment of the present invention.

FIG. 5 is a schematic diagram of the method steps of the second embodiment of the present invention.

FIG. 6 is a schematic diagram of the second pressing operation of the method steps of the second embodiment of the present invention.

FIG. 7 is a schematic diagram of the method steps of the third embodiment of the present invention.

FIG. 8 is a schematic diagram of the second compression application of the method steps of the third embodiment of the present invention.

FIG. 9 is a schematic diagram of the method steps of the fourth embodiment of the present invention.

Fig. 10 is a second schematic diagram of the method steps of the fourth embodiment of the present invention.

FIG. 11 is a schematic diagram of the three-stage compression application of the method steps of the fourth embodiment of the present invention.

Fig. 12 is a schematic diagram of the method steps of the fifth embodiment of the present invention.

Fig. 13 is a second schematic diagram of the method steps of the fifth embodiment of the present invention.

Fig. 14 is a schematic diagram of the three-stage compression application of the method steps of the fifth embodiment of the present invention.

Fig. 15 is a schematic diagram of the method steps of the sixth embodiment of the present invention.

Fig. 16 is a second schematic diagram of the method steps of the sixth embodiment of the present invention.

Fig. 17 is a schematic diagram of the three pressing steps of the method steps of the sixth embodiment of the present invention.

Fig. 18 is a schematic diagram of the method steps of the seventh embodiment of the present invention.

Fig. 19 is a second schematic diagram of the method steps of the seventh embodiment of the present invention.

FIG. 20 is a schematic diagram of the compression application of the method steps of the seventh embodiment of the present invention. Explanation of main component symbols

1. Knowledge part:

Heat pipe 11 Heat conduction plate 12

Radiating fins 13 Gasket tube 14

Combined gap 15

Two, the present invention:

Radiating fins 2 Fin group 2a

Heat pipe 3 Processing fixture 4

Pressure rod 5 fasteners 20

Through hole 21 Annular wall 22

Axial grooving 23 Radial grooving 24

perforation 25 spacer wall 26

Split groove 27 Slot hole 28

Molded parts 41 Die mouth 42

Cone tip pressure part 43 Cone tip part 51

Detailed ways

Relevant technical content and detailed description of the present invention, now cooperate accompanying drawing to explain as follows:

Please refer to Figures 3 and 4, which are schematic diagrams of the process structure of the first embodiment of the pressing forming method of heat pipes and heat dissipation fins of the present invention, as shown in the figure: The pressing forming method of heat pipes and heat dissipation fins of the present invention , the steps of which include at least:

Step 1: Provide a plurality of heat dissipation fins 2, and provide fasteners 20 on both sides of the fins;

Step 2: forming at least one through hole 21 and a protruding annular wall 22 extending in length on the surface of each heat dissipation fin 2;

Step 3: Fasten the plurality of cooling fins 2 with fasteners 20 to form fin groups 2a arranged at intervals;

Step 4: providing at least one heat pipe 3;

Step 5: Put the heat pipe 3 through the fin group 2a and the through holes 21 of most cooling fins 2;

Step 6: Provide a processing jig 4, arrange a plurality of molded parts 41 with a flat end design on one surface, and make the molded parts 41 relatively to the above-mentioned fin group 2a and the gap between the adjacent heat dissipation fins 2 An outer surface of the annular protruding wall 22, that is, the width of the distance between the adjacent molded parts 41 of the processing jig 4, is suitable for providing the above-mentioned radiating fins 21 to accommodate and form a relative arrangement in an alternate state;

Step 7: Carry out the pressing molding process, cooperate with the pressure application technology, such as the application of high-level stamping tools, and apply a compressive force to the processing fixture 4, so that the end of each molded part 41 is opposed to the annular protrusion wall 22 and the surface of the heat pipe 3 A strong compression effect is formed to produce synchronous extrusion deformation, so that the annular protruding wall 22 and the heat pipe 3 are tightly integrated;

Step 8: withdraw the processing jig 4, and complete the tight combination of the heat dissipation fins and heat pipes to form a heat dissipation device.

Utilizing the above-mentioned compression molding method of the heat pipe and heat dissipation fins of the present invention, through various process steps, it is possible to produce finished products of the heat dissipation device with improved compression bonding yield, high bonding and heat transfer efficiency. Through the design of the through hole on the surface of the heat dissipation fin and its ring protrusion, combined with the simple jig structure to exert lateral compression force, in this way, each ring protrusion wall 22 and heat pipe 3 can obtain an average compression force, resulting in Simultaneous extrusion and other type deformations can achieve the exact and uniform tight integration between the ring protrusion wall 22 and the heat pipe 3 to complete the production of the heat sink. Not only the manufacturing process, processing tool and manufacturing process are simple, but also improve the manufacturing quality. The efficiency is also reduced, so as to provide users with a practical cooling device that is cheaper but combines high heat transfer efficiency and reliability.

Please refer to Figures 5 and 6, which disclose the schematic diagrams of the second embodiment of the process steps of the pressing forming method of heat pipes and heat dissipation fins of the present invention, as shown in the figure: the process structure and steps of this embodiment are the same as the above-mentioned Figures 3 and 4 The disclosed ones are roughly the same, the difference is that the annular protruding wall 22 of each cooling fin 2 is further provided with at least one axial slit 23, and at the part of the molded part 41 of the processing jig 4, the corresponding type is formed in The arc curvature of the annular protrusion wall 22 and the die opening 42 of the axially cut groove 23 are used to match the stamping force of the high-level stamping tool in the pressing molding process, so that the annular protrusion wall 22 is pressed against the heat pipe 3 along the axially cut groove 23 to form The strong pressing effect produces synchronous extrusion deformation, so that the entire annular protrusion wall 22 and the heat pipe 3 are tightly integrated, and the same tight combination and performance of the heat dissipation fins and the heat pipe are achieved as in the above-mentioned embodiment.

Furthermore, please refer to Figures 7 and 8, which disclose the schematic diagram of the third embodiment of the process steps of the heat pipe and cooling fin pressing forming method of the present invention, as shown in the figure: the process structure and steps of this embodiment are the same as those in Figure 5 , 6 are substantially the same as disclosed, the difference is that on the ring protrusion wall 22 of each cooling fin 2, in addition to having at least one axial slit 23, at least one An arc-shaped radial slit 24 is designed so that the die opening 42 of the molded part 41 of the processing jig 4 is designed to match the punching force of the high-level punching machine in the pressing molding process, so that the annular protrusion wall 22 has a better shape Deformability, compressing the heat pipe 3 along the axial sectional groove 23, forming a strong pressing effect to produce synchronous extrusion deformation, so that the entire ring protrusion wall 22 and the heat pipe 3 are tightly integrated, and the above embodiment is completed. The same cooling fins and heat pipes are closely integrated and efficient.

Please refer to Figures 9, 10, and 11, which are schematic diagrams of the process structure of the fourth embodiment of the pressing forming method of heat pipes and cooling fins of the present invention, as shown in the figure: the pressing of heat pipes and cooling fins of the present invention A forming method, the steps of which at least include:

Step 1: Provide a plurality of heat dissipation fins 2, and provide fasteners 20 on both sides of the fins;

Step 2: forming at least one through-hole 21 and a protruding annular wall 22 extending in length on the surface of each heat dissipation fin 2 above, and further providing a through hole 25 on the surface of the heat dissipation fin 2 above one end of the protruding wall 22, and A spacer wall 26 is formed between the ring protrusion wall 22;

Step 3: Fasten the plurality of cooling fins 2 with fasteners 20 to form fin groups 2a arranged at intervals;

Step 4: providing at least one heat pipe 3;

Step 5: Put the heat pipe 3 through the fin group 2a and the through holes 21 of most cooling fins 2;

Step 6: providing at least one pressing rod 5 having a tapered tip 51 at one end thereof;

Step 7: Provide a processing jig 4, arrange a plurality of molded parts 41 with flat ends on one surface at a distance, and make the molded parts 41 opposite to the above-mentioned fin group 2a and the gap between the adjacent heat dissipation fins 2 An outer surface of the annular protruding wall 22, that is, the width of the distance between the adjacent molded parts 41 of the processing jig 4, is suitable for providing the above-mentioned radiating fins 21 to accommodate and form a relative arrangement in an alternate state;

Step 8: Carry out the pressing molding process, cooperate with the pressure application technology, such as the application of high-level punching tools, and apply a compressive force to the processing fixture 4, so that the pressing rod 5 is stamped from the end of each molded part 41, and the pressure is pressed. The cone tip 51 of the rod 5 forces the spacer wall 26 to compress downward, and simultaneously forms a compression deformation with the surface of the heat pipe 3, so that the ring protrusion wall 22 and the heat pipe 3 are tightly integrated;

Step 9: withdraw the processing jig 4, and complete the tight combination of the heat dissipation fins 2 and the heat pipe 3 to form a heat dissipation device.

Utilizing the pressing forming method of the heat pipe and heat dissipation fins of the aforementioned embodiments of the present invention, through various process steps, it is possible to produce finished products of heat dissipation devices with improved pressing joint manufacturing yield, high bonding and heat transfer efficiency , through the design of the through hole 20, the ring protrusion wall 22, the through hole 25 and the spacer wall 26 on the surface of the heat dissipation fin 2, and the pressure rod 5 is used to exert a lateral compressive force on the simple jig structure, so that it can pass through The pressure bar 5 can obtain an average compressive force between the spacer wall 26, the annular protrusion wall 22 and the heat pipe 3, and the synchronization of extrusion and other type deformations can be obtained to obtain the exact and average pressure between the annular protrusion wall 22 and the heat pipe 3. Urgently integrated to complete the production of heat sinks, not only the manufacturing process, processing tools and processes are simple, but also improve the production yield and reduce costs, so as to provide users with practical heat sinks that are cheaper but combine high heat transfer efficiency and reliability.

Please refer to Figures 12, 13, and 14, which disclose the schematic diagrams of the fifth embodiment of the pressing forming method for heat pipes and cooling fins of the present invention. , 10, and 11 are substantially the same, except that the spacer walls 26 of each cooling fin 2 are provided with a split groove 27 to communicate with the through holes 25, and extension arcs are provided on both sides of the connection between the through holes 25 and the spacer walls 26. The radial slit 24 of the shape design makes the annular protrusion wall 22 have better extrusion deformation characteristics. The molded part 41 of the processing fixture 4 is used to cooperate with the stamping force of the high-level stamping machine in the pressing forming process to make the spacer wall 26 Squeeze with the annular protruding wall 22 along the axial sectional groove 23 toward the heat pipe 3 to form a strong pressing effect to produce synchronous extrusion deformation, so that the entire annular protruding wall 22 and the heat pipe 3 are tightly integrated, and the above-mentioned The heat dissipation fins and heat pipes of the same embodiment are closely combined and effective.

Please refer to Figures 15, 16, and 17, which are schematic diagrams of the process structure of the sixth embodiment of the pressing forming method of heat pipes and cooling fins of the present invention. A forming method, the steps of which at least include:

Step 1: Provide a plurality of heat dissipation fins 2, and provide fasteners 20 on both sides of the fins;

Step 2: forming at least one through-hole 21 and a protruding annular wall 22 extending in length on the surface of each heat dissipation fin 2 mentioned above; A spacer wall 26 is formed between the ring protrusion wall 22;

Step 3: Fasten the plurality of cooling fins 2 with fasteners 20 to form fin groups 2a arranged at intervals;

Step 4: providing at least one heat pipe 3;

Step 5: Put the heat pipe 3 through the fin group 2a and the through holes 21 of most cooling fins 2;

Step 6: Provide a processing jig 4, and form a plate-like molded part 42 with a tapered tip pressing portion 43 on one surface thereof, and its thickness is suitable to be slightly smaller than the groove width of the above-mentioned slot hole 28;

Step 7: Carry out the pressing molding process, cooperate with the pressure application technology, such as the application of high-level stamping tools, and apply a compressive force to the processing jig 4, so that the conical tip pressing part 43 at the end of each molded part 41 is applied to the spacer wall 26 Generate a downward pressing effect, and simultaneously form a pressing deformation with the surface of the heat pipe 3, so that the annular protruding wall 22 and the heat pipe 3 are tightly integrated;

Step 8: withdraw the processing jig 4, and complete the tight combination of the heat dissipation fins and heat pipes to form a heat dissipation device.

Utilizing the above-mentioned compression molding method of the heat pipe and heat dissipation fins of the present invention, through various process steps, it is possible to produce finished products of the heat dissipation device with improved compression bonding yield, high bonding and heat transfer efficiency. The through hole 20, the ring protrusion wall 22, the slot hole 28 and the spacer wall 26 are designed on the surface of the cooling fin 2, and the lateral compression force is applied to the fixture structure of the plate-shaped molded part 42, so that the plate can be penetrated. The shape molded part 42 can obtain an average compressive force between the spacer wall 26, the annular protrusion wall 22 and the heat pipe 3, and the synchronization of extrusion and other type deformations can be obtained. The urgent combination of integrated heat sinks completes the production of heat sinks. Not only is the manufacturing process, processing tools and processes simple, but also improves the yield rate and reduces costs, so as to provide users with a practical heat sink that is cheaper but combines high heat transfer efficiency and reliability. .

Please refer to Figures 18, 19, and 20, which disclose the schematic diagrams of the manufacturing steps of the seventh embodiment of the pressing forming method for heat pipes and heat dissipation fins of the present invention. , 16, and 17 are substantially the same, the difference is that the spacing wall 26 of each cooling fin 2 is provided with a split groove 27 communicating with the slot hole 28, and two sides of the joint between the slot hole 28 and the spacing wall 26 are provided with Extending the arc-shaped radial slit 24 makes the annular protrusion 22 have better extrusion deformation characteristics. Using the plate-shaped molded part 42 of the processing jig 4, combined with the stamping force of the high-level stamping machine in the pressing forming process, The spacer wall 26 and the annular protruding wall 22 are pressed toward the heat pipe 3 by the slot 28 along the axially cut groove 23, forming a strong pressing effect and synchronous extrusion deformation, so that the entire annular protruding wall 22 and the heat pipe 3 are compressed. The combination of the heat dissipation fins and the heat pipes can achieve the same tight combination and performance as the above-mentioned embodiment.

The above detailed description is a specific description of a feasible embodiment of the present invention, but this embodiment is not intended to limit the patent scope of the present invention, any equivalent implementation or change that does not depart from the technical spirit of the present invention, for example: etc. The equivalent embodiments of changes shall all be included in the patent scope of the present application.

Claims (15)

1, the press formation method of a kind of heat pipe and radiating fin is characterized in that, this method comprises:

Several dissipation fins is provided, and its two side end edge is provided with fastener;

In at least one prominent wall of ring that is provided with through hole of above-mentioned each radiating fin surface forming;

Utilize fastener button collection to form the fins group that spacing is arranged several dissipation fins;

At least one heat pipe is provided, is placed through the through hole of several dissipation fins;

One processing jig is provided;

Carry out the press formation processing procedure, vertically the prominent wall of the ring of each radiating fin is imposed brute force by above-mentioned processing jig and urge, make prominent wall of each ring and heat pipe produce urgent the integrally combining of extrusion distortion synchronously; Combine with heat pipe and make heat abstractor and finish radiating fin.

2, the press formation method of heat pipe as claimed in claim 1 and radiating fin, it is characterized in that, this processing jig more comprises the molding that most spacings are arranged side by side, cooperate pressure to apply technology, the prominent wall of the ring of above-mentioned relatively each radiating fin imposes powerful compressing, forces the prominent wall of each ring to produce and the heat pipe distortion of extruding synchronously combines with average.

3, the press formation method of heat pipe as claimed in claim 2 and radiating fin, it is characterized in that, spacing width between each adjacent molding of this processing jig, each radiating fin that is suitable for to provide above-mentioned fastening to arrange holds, and forms alternate state and be configured to urgent processing and fabricating relatively.

4, the press formation method of a kind of heat pipe and radiating fin is characterized in that, this method comprises:

Several dissipation fins is provided, and its two side end edge is provided with fastener;

Be formed into the few one prominent wall of ring that is provided with through hole in above-mentioned each radiating fin surface mirror, the prominent wall wall of ring is provided with at least one axial profile groove;

Utilize fastener button collection to form the fins group that spacing is arranged several dissipation fins;

At least one heat pipe is provided, is placed through the through hole of several dissipation fins;

One processing jig is provided;

Carry out the press formation processing procedure, vertically the prominent wall of the ring of each radiating fin is imposed brute force by above-mentioned processing jig and urge, make prominent wall of each ring and heat pipe produce urgent the integrally combining of extrusion distortion synchronously; Combine with heat pipe and make heat abstractor and finish radiating fin.

5, the press formation method of heat pipe as claimed in claim 4 and radiating fin, it is characterized in that, this processing jig more comprises the molding that most spacings are arranged side by side, the corresponding pattern of molding one end moulding is in the die orifice of prominent wall arc curvature of ring and axial profile groove, cooperate pressure to apply technology, the prominent wall of the ring of above-mentioned relatively each radiating fin and axially profile groove impose powerful compressing, force the prominent wall of each ring to produce and the heat pipe distortion of extruding synchronously combines with average.

6, the press formation method of a kind of heat pipe and radiating fin is characterized in that, this method comprises:

Several dissipation fins is provided, and its two side end edge is provided with fastener;

Be formed into the few one prominent wall of ring that is provided with through hole in above-mentioned each radiating fin surface mirror, the prominent wall wall of ring is provided with at least one axial profile groove, establishes the radially profile groove that at least one arc designs at the prominent wall of ring with the radiating fin junction in addition;

Utilize fastener button collection to form the fins group that spacing is arranged several dissipation fins;

At least one heat pipe is provided, is placed through the through hole of several dissipation fins;

One processing jig is provided;

Carry out the press formation processing procedure, vertically the prominent wall of the ring of each radiating fin is imposed brute force by above-mentioned processing jig and urge, make prominent wall of each ring and heat pipe produce urgent the integrally combining of extrusion distortion synchronously; Combine with heat pipe and make heat abstractor and finish radiating fin.

7, the press formation method of a kind of heat pipe and radiating fin is characterized in that, this method comprises:

Several dissipation fins is provided, and its two side end edge is provided with fastener;

Be formed into the few one prominent wall of ring that is provided with through hole in above-mentioned each radiating fin surface mirror, the radiating fin surface above prominent wall one end of ring is provided with a perforation in addition, and and the prominent wall of ring between form a spacing wall;

Utilize fastener button collection to form the fins group that spacing is arranged several dissipation fins;

At least one heat pipe is provided, is placed through the through hole of several dissipation fins;

At least one pressure bar is provided;

One processing jig is provided;

Carry out the press formation processing procedure, vertically pressure bar is imposed brute force by above-mentioned processing jig and urge, make prominent wall of spacing wall and ring and heat pipe produce urgent the integrally combining of extrusion distortion synchronously; Finishing radiating fin combines with heat pipe and makes heat abstractor.

8, the press formation method of heat pipe as claimed in claim 7 and radiating fin is characterized in that, this pressure bar more is included in the one end and has cone tip part, urges the distortion combination so that spacing wall and the prominent wall of ring and heat pipe are imposed.

9, the press formation method of heat pipe as claimed in claim 7 and radiating fin, it is characterized in that, this spacing wall more comprises, being provided with one fen profile groove is communicated with perforation, and be provided with the radially profile groove that extends the arc design in perforation and spacing wall junction two sides, make the prominent wall of ring have better extrusion deformation characteristic.

10, the press formation method of a kind of heat pipe and radiating fin is characterized in that, this method comprises:

Several dissipation fins is provided, and its two side end edge is provided with fastener;

Be formed into the few one prominent wall of ring that is provided with through hole in above-mentioned each radiating fin surface mirror, the radiating fin surface above prominent wall one end of ring is provided with a slotted eye in addition, and and form a spacing wall between the prominent wall of ring;

Utilize fastener button collection to form the fins group that spacing is arranged several dissipation fins;

At least one heat pipe is provided, is placed through the through hole of several dissipation fins;

One processing jig is provided;

Carry out the press formation processing procedure, vertically the prominent wall of the ring of each radiating fin is imposed brute force by above-mentioned processing jig and urge, make prominent wall of each ring and heat pipe produce urgent the integrally combining of extrusion distortion synchronously; Combine with heat pipe and make heat abstractor and finish radiating fin.

11, the press formation method of heat pipe as claimed in claim 10 and radiating fin, it is characterized in that, this processing jig more comprises a tabular molding, cooperate pressure to apply technology, the prominent wall of ring that sees through above-mentioned relatively each radiating fin of above-mentioned slotted eye imposes powerful compressing, forces the prominent wall of each ring to produce and the heat pipe distortion of extruding synchronously combines with average.

12, the press formation method of heat pipe as claimed in claim 10 and radiating fin, it is characterized in that, this processing jig more comprises and is provided with at least one tabular molding, cooperate pressure to apply technology, the corresponding spacing wall of slotted eye that sees through above-mentioned each radiating fin imposes powerful compressing, forces each spacing wall and the prominent wall of ring and heat pipe to produce extrusion synchronously to be out of shape and to combine with average.

13, the press formation method of heat pipe as claimed in claim 12 and radiating fin is characterized in that, this tabular molding more comprises: be provided with sharp splenium in the one end, urge with corresponding spacing wall and produce distortion.

14, the press formation method of heat pipe as claimed in claim 12 and radiating fin is characterized in that, the thickness of this tabular molding is less than the groove width of above-mentioned slotted eye.

15, the press formation method of heat pipe as claimed in claim 10 and radiating fin, base is characterised in that, this spacing wall more comprises, being provided with one fen profile groove is communicated with slotted eye, and be provided with the radially profile groove that extends the arc design in slotted eye and spacing wall junction two sides, make the prominent wall of ring have better extrusion deformation characteristic.

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