TW201723413A - Cooling module - Google Patents

Abstract

A cooling module is disclosed for improving cooling effect of conventional cooling module. The cooling module includes a base, a curved heat pipe, a set of cooling fins and a secondary cooling component. The base has a holding surface. The curved heat pipe is coupled to the holding surface. The curved heat pipe has an extension section extending along a direction away from the holding surface. The set of cooling fins couples with the extension section of the curved heat pipe. A secondary cooling space is formed between the set of cooling fins and the base. The secondary cooling component is mounted inside the secondary cooling space. The secondary cooling component comprises a heat conducting pillar and a set of secondary fins. The heat conducting pillar is coupled to the holding surface and extends toward the set of cooling fins. The set of secondary fins couples with the heat conducting pillar.

Description

Thermal module

The invention relates to a heat dissipation module, in particular to a heat dissipation module provided with a bent heat pipe and a heat dissipation fin.

Referring to FIG. 1 , a conventional heat dissipation module 9 includes a base 91 , a plurality of U-shaped heat pipes 92 , and a plurality of heat dissipation fins 93 . The base 91 is connected to a heat source to absorb heat generated by the heat source. The plurality of U-shaped heat transfer tubes 92 are fixed to one side of the base 91, and any two adjacent U-shaped heat transfer tubes 92 are spaced apart. The plurality of heat dissipation fins 93 are coupled to the plurality of U-shaped heat transfer tubes 92, and each of the heat dissipation fins 93 has a plurality of through holes 931 for the plurality of U-shaped heat transfer tubes 92 to pass through the number. The through holes 931 are welded and coupled to the heat dissipation fins 93 around the wall surface of each of the through holes 931. With the above structure, the heat dissipation module 9 can guide the heat absorbed by the susceptor 91 to the heat dissipation fin 93 by the U-shaped heat pipe 92, so that the heat dissipation module 9 has a large heat dissipation area and high heat dissipation. effectiveness.

However, since the portion of the U-shaped heat transfer tube 92 that is close to the base 91 is curved and bent, if the heat sink fin 93 is to be provided in the curved bent portion of the U-shaped heat transfer tube 92, the manufacturer must open The manufacture of several heat dissipation fins 93 having different through holes 931 pitches will increase the manufacturing cost of the heat dissipation module 9. Moreover, even if a plurality of heat dissipation fins 93 having different through holes 931 are provided, and the heat dissipation fins 93 are coupled to the U-shaped heat transfer tube 92 via the through holes 931, the bonding position thereof is difficult to be accurately designed. The spacing between the heat dissipating fins 93 is different, and the process of subsequently soldering and fixing the U-shaped heat pipe 92 to each of the heat dissipating fins 93 is difficult to perform. Accordingly, the plurality of heat dissipation fins 93 of the heat dissipation module 9 are closest to the base 91. A piece must be spaced from the base 91 to prevent the heat sink fin 93 from being bonded to the arcuate bent portion of the U-shaped heat pipe 92. In other words, in the space between the pedestal 91 and the plurality of heat dissipation fins 93 closest to the susceptor 91, the heat dissipation module 9 can only be performed by the plurality of U-shaped heat pipes 92. Heat conduction, unable to dissipate heat efficiently.

In view of this, it is necessary to provide a further improved heat dissipation module to improve the heat dissipation effect of the heat dissipation module having the bent heat pipe.

An object of the present invention is to provide a heat dissipating module, and an auxiliary heat dissipating component is disposed between a heat dissipating fin set and a base to dissipate heat through the auxiliary heat dissipating component.

In order to achieve the foregoing creative purposes, the technical means used in the present invention includes: a heat dissipation module comprising: a base having a bearing surface; a bent heat pipe group, the bent heat pipe group being coupled to the base a bearing surface, and the bent heat pipe group has an extending portion extending away from the bearing surface; a heat radiating fin group is coupled to the extended portion of the bent heat pipe group, and the heat radiating fin An auxiliary heat dissipating space is formed between the chip group and the pedestal; and an auxiliary heat dissipating component is disposed in the auxiliary heat dissipating space, wherein the auxiliary heat dissipating component has a heat conducting column and an auxiliary fin set, and the heat conducting column is coupled to the above a bearing surface, and the heat conducting column extends toward the heat dissipation fin group, and the auxiliary fin group is coupled to the heat conducting column.

The bent heat pipe group has another extension, so that the bent heat pipe group includes a plurality of extensions.

The bent heat pipe group comprises two bent heat pipes to form the plurality of extensions. Thereby, the heat dissipation module can simultaneously guide heat to the heat dissipation fin set by using the two bent heat conduction tubes to increase a heat conduction path between the base and the heat dissipation fin set.

The bent heat pipe includes a joint portion, a bent portion and one of the plurality of extending portions, the joint portion is coupled to the bearing surface of the base, and one end of the bent portion is connected The connecting section is bent in a direction away from the bearing surface, and the other end of the bending section is connected to the extending section. Thereby, each of the bent heat pipes only needs to have at least one extension, so that the bent heat pipe group comprises a plurality of extensions.

The heat conducting column is located between the two bent heat pipes, thereby preventing heat energy from accumulating between the joint sections of the two bent heat pipes, and the heat conducting column can effectively bend the joint portion of the two heat pipes. The thermal energy is directed to the set of auxiliary fins to escape through the auxiliary heat dissipation space.

The bent heat pipe group has a bent heat pipe to form the plurality of extensions to reduce the production cost of the heat dissipation module.

The bent heat pipe has a joint section, a plurality of bend sections and the plurality of extension sections, and the joint section is coupled to the bearing surface of the base, and one end of each of the bend sections is connected to the joint section and faces away from the joint The direction of the bearing surface is bent, and the other end of each of the bending segments is connected to one of the extending segments. Thereby, the bent heat pipe can make the bent heat pipe group include a plurality of extensions.

The heat conducting column has an end portion, and the end portion is away from the base and abuts the heat dissipation fin group to assist in supporting the heat dissipation fin group.

The heat conducting column has an end portion, and the end portion is away from the base and forms a gap with the heat dissipating fin group to maintain a spacing between the heat dissipating fin group and the auxiliary heat dissipating component. There will be a large space between the chip set and the auxiliary heat dissipating component to dissipate heat.

The auxiliary fin set includes an auxiliary fin, and the auxiliary fin is provided with a fixing hole for the heat conducting column to pass through, so that the auxiliary fin can be coupled to the heat conducting column.

The auxiliary fin set further includes a through slot extending through the auxiliary fins for the plurality of extensions to pass through, so that the bent heat pipe group can pass through the auxiliary fin set.

The auxiliary fin set further includes an extension fin, and the extension fin connection And the auxiliary fins, and the two ends of the extending fins respectively extend toward the bearing surface of the base and the heat dissipation fin group. Thereby, the auxiliary fin and the extension fin can be distributed in the auxiliary heat dissipation space, so that the thermal energy guided to the auxiliary fin group can be effectively dissipated via the auxiliary heat dissipation space.

The two ends of the extending fins can respectively abut the bearing surface and the heat dissipation fin group, so that the auxiliary fin group can assist the heat dissipation fin group.

With the above structure, the auxiliary heat dissipation space is formed between the heat dissipation fin group and the base, and the heat dissipation module respectively utilizes the bent heat conduction tube group passing through the auxiliary heat dissipation space and the auxiliary device disposed in the auxiliary heat dissipation space. The heat dissipation component performs heat conduction, so that the heat dissipation module has a large heat dissipation area in the auxiliary heat dissipation space, which can improve heat dissipation efficiency.

〔this invention〕

1‧‧‧Base

11‧‧‧ bearing surface

12‧‧‧ joint surface

2‧‧‧Bent heat pipe group

21‧‧‧Bent heat pipe

211‧‧‧Combined section

212‧‧‧Bend section

213‧‧‧Extension

3‧‧‧Fixing fin set

31‧‧‧ Heat sink fins

311‧‧‧through hole

4‧‧‧Auxiliary heat sink

41‧‧‧thermal column

411‧‧‧End

42‧‧‧Auxiliary fin set

421‧‧‧Auxiliary fins

421a‧‧‧Fixed holes

422‧‧‧through slot

423‧‧‧Extended fins

S‧‧‧Auxiliary cooling space

H‧‧‧heat source

[study]

9‧‧‧ Thermal Module

91‧‧‧Base

92‧‧‧U-shaped heat pipe

93‧‧‧Heat fins

931‧‧‧through hole

Figure 1: An external view of an existing thermal module.

Fig. 2 is a perspective exploded view showing the first embodiment of the present invention.

Fig. 3 is a cross-sectional view showing the structure of the first embodiment of the present invention.

Fig. 4 is a perspective exploded view showing a bent heat pipe of the embodiment of the invention having a single extension.

Fig. 5 is a perspective exploded view showing a second embodiment of the present invention.

Figure 6 is a cross-sectional view showing the structure of a second embodiment of the present invention.

Fig. 7 is a schematic view showing the appearance of a single bent heat pipe of the bent heat pipe group according to the embodiment of the present invention.

Figure 8 is a cross-sectional view showing the structure of a third embodiment of the present invention.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

Referring to FIGS. 2 and 3, the heat dissipation module of the first embodiment of the present invention includes a base 1, a bent heat pipe group 2, a heat sink fin set 3, and an auxiliary heat sink assembly 4. The bent heat pipe group 2 is coupled to the base 1 , the heat dissipation fin set 3 is coupled to the bent heat pipe group 2 , and the auxiliary heat dissipation component 4 is disposed on the base 1 and the heat dissipation fin set 3 between.

The base 1 has a pair of bearing surfaces 11 and a joint surface 12, and the joint surface 12 is adapted to be combined with a heat source H. The bent heat pipe group 2 is coupled to the bearing surface 11 of the base 1. The bent heat pipe group 2 has at least one bent heat pipe 21 having a joint portion 211 and at least one bend. Segment 212 and at least one extension 213. The binding section 211 is coupled to the bearing surface 11 of the base 1. One end of the bending section 212 is connected to the coupling section 211 and is bent away from the bearing surface 11. The other end of the bending section 212 is connected to the binding section 212. The extension 213 extends and the extension 213 extends away from the bearing surface 11.

In this embodiment, the bent heat pipe 21 may have two bending sections 212 and two extending sections 213, and the two bending sections 212 are respectively connected to the two ends of the combining section 211, and the two extending sections 213 are respectively connected to the Two bending segments 212. Thereby, the bent heat pipe 21 can form a U-shaped heat pipe. However, as shown in FIG. 4, in some embodiments of the present invention, the bent heat pipe 21 has only a single bent section 212 and a single extended section 213, so that the bent heat pipe 21 can form an L. Shaped heat pipe. Alternatively, the bent heat pipe 21 may have more than three bend segments 212 and three or more extension segments 213. One end of each of the bend segments 212 may be coupled to the joint segment 211 and away from the bearing surface 11 The direction of the bent portion 212 is connected to the other end of the bent portion 212.

The bent heat pipe 21 may be hollow to form a cavity therein for accommodating a working fluid (for example, water), and the bent heat pipe 21 is continuously circulated by the working fluid in the cavity. The change and the force of gravity and capillary force cause the vaporization and liquid working fluid to converge back and forth between the heat absorbing end and the heat releasing end to achieve heat transfer and to form an isothermal function on the surface of the bent heat pipe 21.

The heat dissipating fin set 3 is coupled to the extended section 213 of the bent heat conducting tube 21 of the bent heat conducting tube group 2, wherein the bending fin group 3 is stably coupled to the bent heat conducting tube group 2, the bend The folded heat pipe group 2 preferably includes a plurality of extensions 213, each of which extends in a direction away from the bearing surface 11. The heat dissipation fin group 3 and the base 1 have a spacing therebetween to form an auxiliary heat dissipation space S between the heat dissipation fin group 3 and the base 1 . The joining section 211 and the bending section 212 of the bent heat pipe 21 of the bent heat pipe group 2 can be accommodated in the auxiliary heat dissipation space S. Thereby, the heat dissipation fin group 3 does not need to be coupled to the bending section 212 of the bent heat pipe 21 . The heat dissipation fins 3 may have a plurality of heat dissipation fins 31. The heat dissipation fins 31 may be arranged in parallel, and each of the heat dissipation fins 31 may be provided with a plurality of through holes 311 for the bending. A plurality of extensions 213 of the heat pipe group 2 pass. In addition, the through hole 311 can be injected into the through hole 311 by soldering (for example, a solder paste), but the invention is not limited thereto.

The auxiliary heat dissipation component 4 is disposed in the auxiliary heat dissipation space S. Therefore, the auxiliary heat dissipation component 4 can be formed between the base 1 and the heat dissipation fin set 3 . The auxiliary heat dissipating component 4 has a heat conducting post 41 and an auxiliary fin set 42 . The heat conducting post 41 is coupled to the carrying surface 11 , and the heat conducting post 41 extends toward the heat dissipating fin set 3 , and the auxiliary fin set 42 is combined. In the heat conducting column 41.

The heat-conducting column 41 has an end portion 411 away from the base 1 . In this embodiment, the end portion 411 can abut the heat-dissipating fin set 3 to assist in supporting the heat-dissipating fin set 3 , and the end portion 411 can be further welded to the heat sink fin set 3. The heat conducting column 41 can be made of a material having a good thermal conductivity (for example, copper or aluminum). The heat conducting column 41 may be a solid cylinder; or the heat conducting column 41 may also be hollow to form a cavity therein for accommodating a working fluid (for example, water). In addition, the number of the heat conducting columns 41 may be plural to improve the heat conduction and support effect that the heat conducting column 41 can provide.

The auxiliary fin set 42 may have a plurality of auxiliary fins 421, the plurality of auxiliary The auxiliary fins 421 are spaced apart, and the plurality of auxiliary fins 421 may be arranged in parallel. Each of the auxiliary fins 421 may be provided with a fixing hole 421a for the heat conducting column 41 to pass therethrough. In addition, the fixing hole 421a can be injected into the fixing hole 421a by soldering (for example, a solder paste), but the invention is not limited thereto.

In this embodiment, the auxiliary fin set 42 may further be provided with a through slot 422, and the through slot 422 may penetrate through the plurality of auxiliary fins 421 of the auxiliary fin set 42 for the bent heat pipe group 2 At least one of the plurality of extensions 213 extends through so that the bent heat pipe set 2 can pass through the auxiliary fin set 4.

With the above structure, when the heat dissipation module of the first embodiment of the present invention is actually used, the bonding surface 12 of the susceptor 1 can be coupled to a heat source H, and the heat energy generated by the heat source H can be directly transmitted to the susceptor 1 through the susceptor 1 The joint section 211 of the bent heat pipe 21 of the heat pipe group 2 is bent, and is further conducted to the extended section 213 via the bent section 212 of the bent heat pipe 21. Since the heat dissipation fin group 3 is coupled to the plurality of extension segments 213 of the bent heat conduction tube group 2, the heat dissipation module can guide thermal energy to the heat dissipation fin group 3. On the other hand, the thermal energy generated by the heat source H can be directly transmitted to the heat conducting column 41 via the susceptor 1 , and the auxiliary fin set 42 is coupled to the heat conducting column 41 , so that the heat dissipation module can guide thermal energy to the The auxiliary fin set 42 in the auxiliary heat dissipation space S.

Accordingly, the heat dissipation module of the first embodiment of the present invention can dissipate heat through the heat dissipation fin group 3, so that the heat dissipation module has a large heat dissipation area. In addition, although the heat dissipation fin group 3 and the susceptor 1 have a spacing therebetween, the auxiliary heat dissipation component 4 is disposed between the heat dissipation fin group 3 and the susceptor 1 to make the heat dissipation fin set 3 The auxiliary heat dissipation space S is formed between the susceptors 1. The heat dissipation module of the first embodiment can simultaneously dissipate heat through the heat conduction post 41 and the auxiliary fin set 42 of the auxiliary heat dissipation assembly 4 to further expand the heat dissipation area.

It should be noted that the bent heat pipe group 2 of the heat dissipation module of the first embodiment may have a plurality of bent heat pipes 21 so that the plurality of bent heat pipes 21 can be used to simultaneously guide heat to the heat dissipation. Fin assembly 3 to increase heat conduction between the susceptor 1 and the heat dissipation fin group 3 path. The heat conducting column 41 of the auxiliary heat dissipating component 4 can be disposed between any two adjacent bent heat pipes 21, and the heat conducting column 41 can be located between the joining sections 211 of the two bent heat pipes 21. The auxiliary fin set 42 can be provided with the through slot 422 for the plurality of extensions 213 of the bent heat pipe group 2 to pass. Therefore, by disposing the heat conducting column 41 between the two adjacent bent heat pipes 21, heat energy can be prevented from accumulating between the joining sections 211 of the two bent heat pipes 21, and the heat conducting column 41 can effectively Thermal energy between the joining sections 211 of the bent heat pipe 21 is directed to the auxiliary fin set 42 to escape via the auxiliary heat dissipation space S.

However, in the auxiliary heat dissipating component 4 of the first embodiment, only the heat conducting column 41 is disposed between two adjacent bent heat pipes 21, and the two adjacent bent heat pipes 21 penetrate the auxiliary. The fin assembly 42 is shown in FIGS. 5 and 6. The heat dissipation module of the second embodiment of the present invention is the heat dissipation module 41 and the auxiliary fin assembly 42 of the auxiliary heat dissipation assembly 4. And disposed between two adjacent bent heat pipes 21, wherein the auxiliary fin set 42 does not need to provide the through grooves 422 for the plurality of extended sections 213 of the bent heat pipe group 2 to pass, thereby simplifying the auxiliary The structural complexity of the heat dissipating component 4. Furthermore, in the embodiment, the end portion 411 of the heat conducting post 41 can form a gap with the heat dissipating fin group 3, and the heat dissipating fin group 3 can be fixed to the bent heat conducting tube group 2, and A distance can be maintained between the heat dissipation fin group 3 and the auxiliary heat dissipation assembly 4. Thereby, there is a large space between the heat dissipation fin group 3 and the auxiliary heat dissipation component 4 to dissipate heat.

In the heat dissipation module of the embodiment shown in the second, third, fourth and fifth embodiments, the bent heat pipe group 2 has a plurality of bent heat pipes 21, and therefore, each of the bent heat pipes 21 only needs to have The at least one extension 213 allows the bent heat pipe set 2 to include a plurality of extensions 213. However, as shown in FIG. 7, in the heat dissipation module of some embodiments of the present invention, the bent heat pipe group 2 may have a single bent heat pipe 21, and the bent heat pipe 21 has the bent heat conduction. The plurality of extensions 213 of the tube group 2 reduce the production cost of the heat dissipation module.

Please refer to FIG. 8 , which is a heat dissipation module according to a third embodiment of the present invention. The auxiliary fins 42 also include an auxiliary fin 421, which is different from the previous embodiment in that the auxiliary fin set 42 further includes an extending fin 423, and the extending fin 423 can be connected to the auxiliary fin 421. The two ends of the extending fin 423 can extend toward the bearing surface 11 of the base 1 and the heat dissipation fin set 3 respectively. The auxiliary fin group 42 of the heat dissipation module of the third embodiment is disposed in the auxiliary heat dissipation space S by providing the extension fin 423, so that the auxiliary fins 421 and the plurality of extension fins 423 can be distributed in the auxiliary heat dissipation space S. The thermal energy directed to the auxiliary fin set 42 can be effectively dissipated via the auxiliary heat dissipation space S. In addition, the two ends of the extending fins 423 can respectively abut the supporting surface 11 and the heat dissipating fin set 3 , so that the auxiliary fin set 42 can assist in supporting the heat dissipating fin set 3 .

According to the foregoing structure, the main feature of the heat dissipation module of the embodiments of the present invention is that the auxiliary heat dissipation component 4 is disposed between the base 1 and the heat dissipation fin set 3 to make the heat dissipation fin set 3 An auxiliary heat dissipation space S is formed between the pedestals 1 , and the auxiliary heat dissipation space S can be effectively utilized. The heat conduction can be performed not only by the bent heat conduction tube group 2 passing through the auxiliary heat dissipation space S, but also by the auxiliary heat dissipation space. The auxiliary heat dissipating component 4 in S performs heat dissipation. Therefore, the heat dissipation module of each embodiment of the present invention can dissipate heat through the heat conduction post 41 and the auxiliary fin set 42 of the auxiliary heat dissipation component 4 to further expand the heat dissipation area. Compared with the foregoing heat dissipation module 9 in the space between the base 91 and the heat dissipation fins 93, the plurality of U-shaped heat pipes 92 can be used for heat conduction. The heat dissipation module of each embodiment of the present invention is The auxiliary heat dissipation space S does have a large heat dissipation area, which can improve the heat dissipation efficiency, so as to improve the heat dissipation effect of the heat dissipation module.

In summary, the heat dissipation module of the embodiments of the present invention can expand the heat dissipation area of the heat dissipation module and improve the heat dissipation efficiency, so as to improve the heat dissipation effect of the heat dissipation module.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

1‧‧‧Base

11‧‧‧ bearing surface

12‧‧‧ joint surface

2‧‧‧Bent heat pipe group

21‧‧‧Bent heat pipe

211‧‧‧Combined section

212‧‧‧Bend section

213‧‧‧Extension

3‧‧‧Fixing fin set

31‧‧‧ Heat sink fins

311‧‧‧through hole

4‧‧‧Auxiliary heat sink

41‧‧‧thermal column

411‧‧‧End

42‧‧‧Auxiliary fin set

421‧‧‧Auxiliary fins

421a‧‧‧Fixed holes

422‧‧‧through slot

Claims (11)

A heat dissipation module includes: a base having a bearing surface; a bent heat pipe group, the bent heat pipe group is coupled to the bearing surface of the base, and the bent heat pipe group has an extension The extending section extends away from the bearing surface; a heat dissipating fin set is coupled to the extended section of the bent heat conducting tube set, and an auxiliary heat dissipating space is formed between the heat dissipating fin set and the base; and The auxiliary heat dissipating component is disposed in the auxiliary heat dissipating space, and the auxiliary heat dissipating component has a heat conducting column and an auxiliary fin set, the heat conducting column is coupled to the carrying surface, and the heat conducting column extends toward the heat radiating fin set, An auxiliary fin set is bonded to the thermally conductive column. The heat dissipation module of claim 1, wherein the bent heat pipe group has another extension, so that the bent heat pipe group comprises a plurality of extensions. The heat dissipation module of claim 2, wherein the bent heat pipe group comprises two bent heat pipes, each of the bent heat pipes comprises a joint section, a bent section and the plurality of extensions And a coupling section is coupled to the bearing surface of the base, and one end of the bending section is connected to the coupling section and bent away from the bearing surface, and the other end of the bending section is connected to the extension section. The heat dissipation module of claim 3, wherein the heat conducting column is located between the two bent heat pipes. The heat dissipation module of claim 2, wherein the bent heat pipe group has a bent heat pipe, the bent heat pipe has a joint section, a plurality of bent sections and the plurality of extensions, The binding section is coupled to the bearing surface of the base, and one end of each of the bending sections is connected to the coupling section and bent away from the bearing surface, and the other end of each of the bending sections is connected to one of the extending sections. The heat dissipation module according to claim 1, wherein the heat conduction column has one end portion, The end portion is away from the base and abuts against the heat dissipation fin group. The heat dissipation module of claim 1, wherein the heat conducting column has an end portion that is away from the base and forms a gap with the heat dissipation fin set. The heat dissipation module of claim 1, wherein the auxiliary fin set comprises an auxiliary fin, and the auxiliary fin is provided with a fixing hole for the heat conducting column to pass. The heat dissipation module of claim 8, wherein the auxiliary fin set is further provided with a through slot, and the through slot penetrates the auxiliary fin for the plurality of extensions to pass through. The heat dissipation module of claim 8, wherein the auxiliary fin set further comprises an extension fin, the extension fin is connected to the auxiliary fin, and the extension fins can respectively face the above The bearing surface of the base and the heat dissipation fin group extend. The heat dissipation module of claim 10, wherein the two ends of the extension fins are respectively abutted on the bearing surface and the heat dissipation fin group.