TW201606256A - Heat sink tightening and fixating structure and its method - Google Patents

Abstract

The present invention provides a heat sink tightening and fixating structure and its method. The heat sink tightening and fixating structure comprises: a heat dissipating base having multiple pairing rib sets, each rib set including two raised ribs and a stamped channel formed between the two raised ribs; a heat dissipating sheet set arranged on the heat dissipating base and including multiple heat dissipating fins. Multiple rib grooves are arranged on one terminal face of the heat dissipating fins that is adjacent to the heat dissipating base. The rib set is tightly matched and connected with the rib grooves via a jig stamping deformation process. As a result, the manufacturing and assembling of heat sink is provided with product stability, thereby ensuring that the heat sink product is produced with quality and efficiency. Furthermore, the present invention allows an excellent mechanical contact between the heat dissipating fins and the heat dissipating base without affecting the structural strength or the heat dissipation contact, thereby enabling the assembled heat dissipating device to have high heat dissipation efficiency and product competitiveness.

Description

Radiator tightly fixed structure and method thereof

The invention relates to a heat sink tightly fixing and fixing structure, in particular to a fixing structure using heat radiating fins, and assembling the heat radiating fins by the jig, so that the manufacturing assembly is convenient, efficient and stable in quality. The heat sink is tightly fitted with a fixed structure and a method thereof.

As the computer central processing unit (CPU) function becomes more and more powerful, and the relative heat dissipation function is increasingly demanding, the current radiator manufacturers are actively developing more efficient thermal modules, and the electronic devices are moving toward multi-core performance. In the era, the overall product quality and heat dissipation efficiency of the heat sink are also facing more severe limitations and tests. Conventional Heatsink Assembly Structure and Method As shown in FIG. 1 , the heat sink 80 discloses a combination of a seat body 81 and a heat dissipation fin 82 which is shaved or extruded by a blade on one side of the seat body 81. A plurality of interlaced deep trenches 811 and shallow trenches 812 are formed. The deep trenches 811 are provided with heat dissipation fins 82, and the fixtures 83 are inserted between the heat dissipation fins 82 to punch the shallow trenches 812. The wall portion 813 on both sides of the shallow groove 812 is deformed outward by the pressing of the jig 83, so that the deformed wall portion 813 closely engages the heat dissipating fin 82, so that the heat dissipating fin 82 and the seat body 81 are tightly integrated. However, the conventional method of manufacturing the heat sink 80 has the following drawbacks: If it is formed by scraper shaving, the scraper with deep grooves and shallow grooves 811 and 812 on the seat body 81 is extremely sharp, and the blade portion is easily broken and notched during the planing process, and the scraper is frequently replaced. It is not economically viable, and the replacement process must also interrupt the production process, which is not an ideal manufacturing method.

Moreover, if formed by extrusion molding, because the heat dissipation is partly due to the heat dissipation area, when the heat dissipation fin 82 is large, the larger the heat dissipation area is, the better the heat dissipation effect is, and the extrusion heat is formed. The distance between adjacent grooves of the fixture is limited and cannot be maintained. The distance between the holes is small, so that the heat sink fins 82 can be accommodated on the seat body 81, and the heat dissipation area is also small, so that the heat dissipation effect is poor.

In addition, since the combination of the heat dissipation fins 82 and the base 81 is inserted into the heat dissipation fins 82 by the jig 83, the shallow grooves 812 are punched, and the wall portions 813 on both sides of the shallow grooves 812 are subjected to the jig 83. The stamping is deformed to the outside to tightly engage the heat dissipating fins 82. However, the shallow groove 812 is affected by the deformation only in the shallow position of the seat body 81, so that most of the heat dissipating fins 82 inserted into the seat body 81 cannot be tightly formed. One, but the effect of heat dissipation is poor.

Another conventional heat sink assembly structure and method, as shown in FIGS. 2 and 2a, discloses a heat sink structure and a manufacturing method. The heat sink 90 is composed of a fin group 92 and a body 91. One side of the group 92 adjacent to the seat body 91 is provided with a plurality of T-shaped grooves 921, one side of the seat body 91 is laterally provided with a T-shaped rail 911 corresponding to the T-shaped groove 921, so that the seat body 91 and the fin group 92 can be combined by the corresponding fitting T-shaped rail 911 of the T-shaped groove 921, and then inserted into the fins of the fin group 92 by the stamping die 93 to punch the T-shaped rail 911, so that the T-shaped rail The 911 is deformed so that the seat body 91 and the fin group 92 are tightly integrated. Although the conventional heat sink assembly structure and manufacturing method can achieve the manufacture of the heat sink, there is still a defect. For example, the combination of the end face of the fin group 92 and the seat body 91 utilizes a stamping die 93 to the T-shaped rail 911. The T-shaped rail 911 is appropriately deformed by the impact force of the stamping die 93, and the precise control is required. Otherwise, the impact force of the stamping die 93 is too small, and the T-shaped rail 911 is not easily deformed properly. If the impact force of the stamping die is too large, the contact point between the T-shaped rail 911 and the seat body 91 will be deformed, and the contact surface of the seat body 91 and the heat source will be uneven, thereby affecting the heat dissipation efficiency, so that the overall Not ideal design. Therefore, how to solve the problem of the lack of conventional radiator construction and manufacturing methods is the key direction for the development and breakthrough of the industry.

Therefore, the inventors of the present invention have developed and conceived their solutions in view of the fact that the conventional heat sink is constructed and assembled, and it is hoped that a more convenient heat dissipation, efficiency and product can be developed. The heat sink and the quality stability of the heat sink are closely arranged and fixed to promote the development of the industry, and the invention is produced by the concept of a long time.

SUMMARY OF THE INVENTION The object of the present invention is to provide a device that can provide excellent convenience and product stability for manufacturing and assembling a heat sink, thereby ensuring the quality of the heat sink product and improving the smoothness and efficiency of the manufacturing assembly.

A further object of the present invention is to provide a heat dissipating effect between the heat dissipating fin and the heat sink, and does not affect the structural strength or heat dissipating contact state of the heat dissipating fin itself, thereby enabling the assembled heat dissipating device to actively improve the heat dissipating efficiency. And industrial competitiveness.

In order to achieve the above objects and effects, the method of the present invention includes: (1) providing a heat sink having at least one pair of rib groups on one side of the heat sink, the rib group being formed a punching channel; (2) providing a plurality of heat dissipating fins, the end surface of the heat dissipating fin is provided with a rib groove corresponding to the rib group and a plurality of laterally protruding engaging portions, the fitting portion includes The end of the rib groove is abutting the sheet; (3) the rib group is joined to the rib groove; (4) using the jig between the adjacent number of fins The punching channel is punched in the vertical channel direction to deform the rib group, and the plurality of heat dissipating fins are tightly coupled to the heat sink.

In the above method, the step (4) is followed by a stamping or filling operation of the punching channel along the channel direction by using the inserting device to cause secondary deformation of the rib group, thereby making the plurality of heat dissipating fins stronger. Combined with the heat sink.

In the above method, the heat sink has a plurality of seat heat pipe grooves, wherein the heat pipe grooves are arranged in a staggered relationship with the pair of rib groups, and the heat radiating fins are adjacent to the end faces of the heat sinks. There is a plurality of heat pipe grooves, wherein the heat pipe groove and the cavity groove are arranged in a staggered manner, and the heat pipe groove and the heat pipe groove of the body form a heat pipe groove for setting the heat pipe. .

In the above method, the end edge of the rib is provided with an inwardly projecting end fold, and the two end folds form a passage opening communicating with the punching passage, and the outer side of the rib is provided with an abutting angle.

In the above method, the heat dissipating fin is provided with a buckle piece away from the side of one end surface of the heat sink.

In the above method, the bonding portion further includes an arc-shaped heat pipe patch, and the The heat pipe patch and the end abutting plate are connected with a connecting patch, and the heat pipe patch is correspondingly disposed at the groove of the heat pipe of the sheet body, and the end abutting film has a center direction of the groove corresponding to the corresponding rib Tilt setting.

In the above method, the end abutting piece abuts the abutting angle outside the rib.

The above method, wherein the stamping passage is filled with an insert.

The heat sink of the present invention is configured to include a heat sink having a plurality of pairs of ribs thereon, the rib group comprising two raised ribs, the two ribs Forming a stamping channel; a heat sink group is disposed on the heat sink, the heat sink group includes a plurality of heat radiating fins, and the heat radiating fins are adjacent to one end surface of the heat sink, and are provided with a plurality of rib grooves and a lateral direction The protrusion is provided with at least one affixing portion, and the affixing portion includes at least one end abutting piece corresponding to the side of the rib groove; in the foregoing configuration, the rib group is formed by stamping deformation of the jig The rib groove, the end abutting patch produces a tight fit.

In the above configuration, the heat dissipation seat is provided with a plurality of seat heat pipe grooves, wherein the heat pipe grooves are arranged in a staggered relationship with the pair of rib groups, and the heat dissipation fins are adjacent to the end face of the heat dissipation seat. The plurality of heat pipe grooves are arranged, and the heat pipe groove of the body and the cavity of the cavity are staggered, and the heat pipe groove of the body and the heat pipe groove of the body form a heat pipe concave for setting the heat pipe. groove.

In the above configuration, the end edge of the rib is provided with an end fold protruding inwardly, and the two end folds form a passage opening communicating with the punching passage, and the outer side of the rib is provided with an abutting angle.

In the above configuration, the heat dissipating fins are provided with a fastening piece away from the side of one end surface of the heat dissipation seat, and the fastening piece provides a connection arrangement of the adjacent heat dissipation fins.

In the above configuration, the bonding portion further includes an arc-shaped heat pipe patch, and the heat pipe patch and the end abutting plate are connected with a connecting patch, and the heat pipe patch is correspondingly disposed on the heat pipe concave of the chip body. At the groove, the end abutting sheet has a tilting direction toward a center of the corresponding rib groove.

In the above configuration, the end abutting piece abuts against the abutting angle outside the rib.

In the above configuration, the punching passage is filled with an insert.

For a better understanding and understanding of the technical features of the present invention and the achievable effects of the present invention, please refer to the preferred embodiment of the drawings and the detailed descriptions as follows:

10‧‧‧ Heat sink

11‧‧‧body heat pipe groove

12‧‧‧ rib group

13‧‧‧ rib

130‧‧‧End fold

131‧‧‧Affliction

132‧‧‧ passage

14‧‧‧Pressing channel

15‧‧‧ ribs

151‧‧‧Affliction

20‧‧‧ Heat sink set

21‧‧‧ Heat sink fins

210‧‧‧ rib groove

211‧‧‧Piece heat pipe groove

22‧‧‧Bucks

23‧‧‧Fitting Department

24‧‧‧Hot tube patch

241‧‧‧heat pipe space

25‧‧‧End patch

26‧‧‧Connected patch

27‧‧‧ Missing

30‧‧‧ fixture

40‧‧‧Inlays

Figure 1 is a schematic view of the structure of a conventional heat sink.

Figure 2 is a schematic view of the structure of a conventional heat sink.

Figure 2a is a schematic view of the stamping of the T-shaped rails of the stamping die of Figure 2.

Figure 3 is a schematic view of the combination of the present invention.

Figure 4 is a schematic cross-sectional view showing the combined operation of the present invention.

Figure 5 is a schematic view of the combined stamping operation of the present invention.

Fig. 5a is a schematic view showing the stamping of the rib group by the jig.

Figure 6 is an enlarged schematic view of a partial combined punching operation of the present invention.

Figure 7 is a schematic view showing the structure of a further embodiment of the present invention.

Figure 8 is a schematic flow chart of the manufacturing method of the present invention.

Please refer to FIG. 3 and FIG. 4 for explaining the heat sink tight fixing structure of the present invention. As shown in the figure, the heat sink 10 includes a heat sink 10 and a heat sink group 20; the heat sink 10 is provided with a plurality of seat heat pipe recesses. a groove 11 and a plurality of pairs of rib groups 12, wherein the seat heat pipe groove 11 is semicircular, and the seat heat pipe groove 11 and the pair of rib groups 12 are staggered. The rib group 12 includes two ribs 13 with a convex rib 13 formed between the two ribs 13 and an end of the rib 13 (one end/free end away from the heat sink 10) An end fold 130 extending inwardly (in the direction of the punching passage 14) is formed. The two end folds 130 define a passage opening 132. The passage opening 132 communicates with the punching passage 14; further, the rib The outer side of the heat sink 10 is provided with an abutting rib 15 , and the inner side of the rib 15 is provided with an abutting angle 151 .

The heat sink group 20 includes a plurality of heat dissipation fins 21, and one of the heat dissipation fins 21 The end faces (the top face/the direction shown in FIG. 3) are respectively provided with a fastening piece 22, and the fastening piece 22 is provided with the connection of the adjacent heat dissipation fins 21 for the heat dissipation fins 21 The plurality of heat sink groups 20 are fastened in a fastening manner; the other end faces of the heat dissipation fins 21 (the bottom end surface/the end surface adjacent to the heat sink 10) are provided with a plurality of sheet heat pipe grooves 211 and a plurality of rib recesses. The groove 210 is disposed in a shape of a heat pipe (in this embodiment, a semicircular shape), and the heat pipe groove 211 and the rib groove 210 are arranged in a staggered manner; The heat dissipating fins 21 are laterally protruded from the end faces of the heat dissipating fins 10 and are provided with a plurality of bonding portions 23, and the bonding portions 23 include at least one heat pipe patch 24 in the shape of a heat pipe (this embodiment is curved) And the end of the two ends abuts against the sheet 25, and the connecting portion 26 is connected between the heat pipe patch 24 and the end abutting sheet 25, wherein the heat pipe patch 24 is correspondingly disposed on the heat pipe groove 211 of the sheet body. A heat pipe space 241 is formed under the heat pipe patch 24, and the end abutting piece 25 is correspondingly disposed on two sides of the cavity rib groove 210, and the end is abutted The patch 25 has a slanting arrangement toward the center of the corresponding rib groove 210; and the two ends of the heat dissipating fin 21 are provided with a missing portion 27.

Referring to FIG. 3 and FIG. 5 , when the heat sink of the present invention is tightly assembled and fixed, the heat sink group 20 is assembled on the heat sink 10 and the rib recess 210 of the heat sink fin 21 is sleeved. On the rib group 12, the sheet heat pipe groove 211 is correspondingly combined with the seat heat pipe groove 11; wherein the end abutting piece 25 is combined on the outer side of the rib 13, and the seat body The heat pipe groove 11 and the heat pipe groove 211 of the body form a heat pipe groove, and the heat pipe patch 24 is disposed on the heat pipe groove, and the heat pipe groove is used to set a heat pipe (not shown), the heat pipe The internal system is provided with a working fluid and a capillary structure for generating heat guiding and heat dissipation, and the heat pipe is constituted by a conventional technique and will not be described again. On the other hand, the end of the heat dissipating fins 21 on the opposite end sides of the heat dissipating fins 21 abuts against the abutting angle 151 of the side ribs 15.

Please refer to FIG. 5a and FIG. 6 for explaining the assembly structure of the heat sink tight fixing structure of the present invention. As shown in the figure, the jig 30 is used to vertically press the adjacent plurality of heat radiating fins 21 . The punching operation in the direction of the passage 14 is to press the rib group 12 through the passage opening 132 and the punching passage 14 by the jig 30, so that the rib 13 is deformed outwardly, and the outwardly deformed rib is deformed. 13 is abutted against the rib groove 210, and at the same time, the outwardly deformed rib 13 will also abut against the end of the affixing portion 23 against the patch 25, and the end abuts against the sheet 25 Reaching the rib The abutment angle 131 of the outer side of the 13 produces a relatively firm and tight connection.

Referring to FIG. 7 , a further embodiment of the heat sink fastening arrangement of the present invention is further provided. When the punching channel 14 and the rib group 12 are stamped by the jig 30, the stamping channel 14 can be further formed. The insert 40 (such as a rod or the like) is punched or filled in the direction of the passage of the punching passage 14, so that the punching passage 14 and the rib group 12 are deformed a second time to abut against the rib recess 210 and the end. Sheet 25 is more urgently combined. The insert 40 is inserted into the punching passage 14 to produce a second deformation. The insert 40 can be taken out or not taken out; of course, the insert 40 is stamped or filled along the punching passage 14 and the jig 30 is not yet completed. It is carried out under the state of stamping operation and is not limited.

Referring to FIG. 8 , the present invention describes a method for assembling a heat dissipating device in the foregoing configuration. The method steps include: S11: providing a heat sink, at least one pair of ribs on one side of the heat sink The rib group is formed with a punching channel; S12: providing a plurality of heat dissipating fins, the end surface of the heat dissipating fin is provided with a rib groove corresponding to the rib group and a plurality of laterally protruding affixing a fitting portion comprising an end abutting piece provided on both sides of the groove of the rib; S13: joining the rib group into the groove of the rib; S14: using the jig in the adjacent number The punching holes are punched in the vertical channel direction to deform the rib group, so that the plurality of heat radiating fins are tightly coupled to the heat sink; S15: completing the manufacture of the heat sink.

After the foregoing step S14, the following steps may be followed, which include: S14A: stamping or filling the punching channel along the channel direction by using the inserting device to cause secondary deformation of the rib group, thereby further making the plurality of heat radiating fins more The utility model is firmly coupled to the heat sink: the edge is the tight assembly method and the device of the heat dissipating device of the invention, which can make the manufacture and assembly of the heat sink have excellent convenience and product stability, thereby ensuring the quality of the heat sink product and Improve the smoothness and efficiency of its manufacturing assembly; at the same time, the invention can dissipate heat sink fins The contact heat dissipation effect of the hot seat is good, and does not affect the structural strength or the heat-dissipating contact state of the heat-dissipating fin itself, so that the assembled heat-dissipating device can actively improve its heat-dissipating efficiency and industrial competitiveness.

In summary, the present invention is indeed a rather excellent invention, and the invention patent application is filed according to the law; however, the above description is only a preferred embodiment of the present invention, and the technical means according to the present invention are extended. Changes are intended to fall within the scope of the patent application of the present invention.

10‧‧‧ Heat sink

11‧‧‧body heat pipe groove

12‧‧‧ rib group

13‧‧‧ rib

131‧‧‧Affliction

14‧‧‧Pressing channel

15‧‧‧ ribs

20‧‧‧ Heat sink set

21‧‧‧ Heat sink fins

22‧‧‧Bucks

23‧‧‧Fitting Department

24‧‧‧Hot tube patch

241‧‧‧heat pipe space

25‧‧‧End patch

26‧‧‧Connected patch

Claims (14)

A heat sink tightly fitting and fixing assembly method comprises: (1) providing a heat sink seat, wherein at least one pair of rib sets are disposed on one side of the heat sink seat, and the rib group forms a punching passage; (2) providing a plurality of heat dissipating fins, the end surface of the heat dissipating fin is provided with a rib groove corresponding to the rib group and a plurality of laterally protruding engaging portions, and the bonding portion includes The end of the side of the rib groove abuts the sheet; (3) the rib group is joined to the rib groove; (4) the jig is used to press the punching passage between the adjacent plurality of fins The punching in the direction of the vertical channel causes the rib group to be deformed, so that the plurality of heat dissipating fins are tightly coupled to the heat sink. The method of assembling the heat sink according to claim 1 is characterized in that the step (4) is followed by a stamping or filling operation of the punching channel along the channel direction by using an insert to make the rib. The group produces a secondary deformation, which in turn causes the plurality of heat dissipation fins to be more firmly bonded to the heat sink. The method of assembling a heat sink according to claim 1, wherein the heat sink has a plurality of seat heat pipe grooves, and the heat pipe groove of the seat body and the pair of rib groups are In the staggered configuration, the end surface of the heat dissipating fin adjacent to the heat dissipating seat is provided with a plurality of sheet heat pipe grooves, and the heat pipe groove of the sheet body and the rib groove are staggered, and the heat pipe groove of the seat body is The sheet heat pipe groove constitutes a heat pipe groove for setting the heat pipe. The heat sink according to claim 3, wherein the end of the rib is provided with an inwardly protruding end fold, and the two end folds form a passage connecting the punching passage. The mouth is provided with an abutting angle on the outer side of the rib. The method of assembling a heat sink according to claim 3, wherein the heat dissipating fin is provided with a buckle piece away from an end surface of the heat dissipation seat, and the buckle piece provides adjacent heat dissipation fins. Link settings. The heat sink tightly fixed and assembled assembly method according to the first aspect of the patent application, wherein the fitting The department further includes an arc-shaped heat pipe patch, and the heat pipe patch and the end abutting piece are connected with a connecting patch, and the heat pipe patch is correspondingly disposed at the groove of the heat pipe of the piece, the end abutting The sheet has an inclined arrangement toward the center of the corresponding rib groove. The method of assembling a heat sink according to claim 6 , wherein the end abutting piece abuts the abutting angle of the outer side of the rib, the punching channel is filled with an insert. A heat sink tightly fixed structure comprises: a heat sink seat on which a plurality of pairs of rib groups are arranged, the rib group includes two protruding ribs, and the two ribs form a a punching channel; a heat sink group is disposed on the heat sink, the heat sink group includes a plurality of heat radiating fins, and the heat radiating fins are adjacent to one end surface of the heat sink, and are provided with a plurality of rib grooves and lateral protrusions Having at least one affixing portion, the affixing portion includes at least one end abutting piece corresponding to a side edge of the rib groove; and the rib forming group is formed by stamping deformation of the jig The rib groove, the end abutting patch produces a tight fit. The heat sink according to claim 8 is characterized in that the heat sink is provided with a plurality of seat heat pipe grooves, and the seat heat pipe groove is interlaced with the pair of rib groups. Arranging, the end surface of the heat dissipation fin adjacent to the heat dissipation seat is provided with a plurality of heat pipe grooves, wherein the heat pipe groove and the cavity groove are arranged in a staggered manner, and the heat pipe groove and the piece are fixed The body heat pipe groove is formed by a heat pipe groove for setting the heat pipe. The heat sink of the ninth aspect of the invention is characterized in that the end of the rib is provided with an inwardly protruding end fold, and the two end folds form a passage connecting the punching passage. The mouth is provided with an abutting angle on the outer side of the rib. The heat sink according to claim 8 is configured to be fixedly disposed, wherein the heat dissipating fin is provided with a buckle piece away from a side edge of one end surface of the heat sink. The heat sink is fixedly configured as described in claim 8 , wherein the bonding portion further comprises an arc-shaped heat pipe patch, and the heat pipe patch and the end abutting sheet are connected with a connecting patch. The heat pipe patch is correspondingly disposed in the groove of the heat pipe of the sheet body, and the end abutting film has a direction The corresponding rib groove is inclined in the center direction. The heat sink is fixedly configured as described in claim 12, wherein the end abutting piece abuts the abutting angle outside the rib. The heat sink is configured as described in claim 10, wherein the stamping passage is filled with an insert.