TWI598562B - Heat dissipation component - Google Patents

Description

Heat sink

The invention relates to a heat dissipating component, in particular to a heat dissipating component which has multiple heat dissipating effects and can greatly improve heat exchange efficiency.

According to the advancement of semiconductor technology, the volume of the integrated circuit is gradually reduced, and in order to make the integrated circuit can process more data, the integrated circuit under the same volume can accommodate more than several times more than before. Computational components, when the number of computing components in the integrated circuit is increasing, the execution efficiency is getting higher and higher, so the thermal energy generated by the computing components is getting larger and larger, taking the common central processor as an example, at a high level. At full load, the heat generated by the central processing unit is enough to cause the central processor to burn out. Therefore, the heat sink of the integrated circuit becomes an important issue.

The central processing unit and the chip or other electronic components in the electronic device are heat sources in the electronic device. When the electronic device operates, the heat source generates heat. Therefore, heat conducting components such as heat pipes and temperature equalizing plates are often used. The flat heat pipe has good heat dissipation and heat conduction performance for heat conduction or even temperature. The heat pipe is mainly used as the remote heat conduction; the heat is transferred from the liquid to the vaporization by the internal working fluid from the liquid to the heat pipe. At the other end, the purpose of heat conduction is achieved, and for the part with a large heat transfer area, the temperature equalizing plate is selected as the heat dissipating component, and the temperature equalizing plate mainly absorbs heat from one side plane in contact with the heat source, and then conducts heat to the other. One side is used for heat dissipation condensation.

However, since the heat-dissipating components such as the heat pipe and the uniform temperature plate are the heat-dissipating components of a single solution, in other words, the conventional heat-dissipating component is disposed in the electronic device and can only contact the heat source or the temperature of the uniform temperature plate. The heat dissipation or the uniform temperature and the like are dissipated, and it is not possible to have multiple functions such as uniform temperature and remote heat conduction. Of course, the heat exchange efficiency is relatively poor.

Accordingly, in order to effectively solve the above problems, the main object of the present invention is to provide a heat dissipating component having multiple heat dissipation effects.

A secondary object of the present invention is to provide a heat dissipating component that can greatly improve heat exchange efficiency.

In order to achieve the above object, the present invention provides a heat dissipating component including a first body, a second body, a first tube body, a third body, a second tube body, and a working fluid, the first body having a first plate body and a second plate body, wherein the first and second plates correspond to the cover to jointly define a first chamber, and the first chamber is provided with a first capillary structure, and the second plate body a first connecting portion is disposed, the second body has a third plate body and a fourth plate body, and the third and fourth plates correspond to the cover to jointly define a second chamber, and the second chamber a second capillary structure is disposed, and a second connecting portion is disposed at the third plate body, the first tubular body has a first end and a second end and a first flow channel, and is in the first tubular body The tube wall is provided with a fourth capillary structure, the first end abuts the first connecting portion and abuts against an inner side wall of the first plate body, the second end abuts the second connecting portion and abuts against the Determining the inner side wall of the fourth plate and causing the fourth capillary structure to be capillaryly connected to the first and second capillary structures, The first end of the first tube has at least one first through hole communicating with the first chamber, and the second end of the first tube defines at least one second through hole communicating with the second chamber to make the first flow The first and second through holes communicate with the first and second chambers, and a third connecting portion is further disposed at the fourth plate body corresponding to the second connecting portion, the third body is further Having a fifth plate body and a sixth plate body, the fifth and sixth plate bodies correspondingly define a third chamber, and a third capillary structure is disposed on the third chamber. a fourth connecting portion is disposed at the body, the second pipe body has a third end and a fourth end and a second flow path, and a tube wall of the second tube is provided with a fifth capillary structure, the third end is disposed through the first, second and third connecting portions and passes through the first flow path and abuts into the first plate body a side wall, the fourth end abuts the fourth connecting portion and abuts against an inner side wall of the sixth plate body, and causes the fifth capillary structure to be capillaryly connected to the first and third capillary structures, The third end of the second tube defines at least one third through hole communicating with the first chamber, and the fourth end of the second tube defines at least one fourth through hole communicating with the third chamber to enable the third portion The second flow passage communicates with the first and third chambers through the third and fourth through holes, and the diameter of the second tubular body is smaller than the diameter of the first tubular body.

Through the design of the structure of the present invention, when the first body of the heat dissipating component contacts the heat source, the liquid working fluid disposed in the first chamber is heated to form a vapor working fluid, and then, a part of The vaporous working fluid flows into the second chamber through the first passage through the first through hole of the first pipe body, and the vapor working fluid is condensed and converted into a liquid working fluid in the second chamber. And continuing to circulate through the second and fourth capillary structures to the first chamber, and another portion of the vapor working fluid passing through the second flow path through the first through hole of the first tube And into the third chamber, and the vapor working fluid is also condensed into a liquid working fluid in the third chamber, and is circulated back to the first chamber by the third and fifth capillary structures to continue circulating And the heat sink disposed between the first and second bodies and between the second and third bodies are used together to complete the heat dissipation of the vapor-liquid circulation inside the heat-dissipating component, thereby achieving the effect of multiple heat dissipation, and Can greatly increase heat Conversion efficiency.

1‧‧‧ Heat Dissipation Components

11‧‧‧First Ontology

111‧‧‧ first board

112‧‧‧Second plate

1121‧‧‧First connection

113‧‧‧First chamber

114‧‧‧First capillary structure

12‧‧‧Second ontology

121‧‧‧ Third plate

1211‧‧‧Second connection

122‧‧‧fourth plate

1221‧‧‧ Third connection

123‧‧‧Second chamber

124‧‧‧Second capillary structure

13‧‧‧ Third ontology

131‧‧‧ Fifth plate

1311‧‧‧fourth connection

132‧‧‧6th plate

1321‧‧‧ fifth connection

133‧‧‧ third chamber

134‧‧‧ Third capillary structure

14‧‧‧First tube

141‧‧‧ first end

1411‧‧‧First through hole

142‧‧‧ second end

1421‧‧‧second through hole

143‧‧‧First runner

144‧‧‧Fourth capillary structure

15‧‧‧Second body

151‧‧‧ third end

1511‧‧‧3rd through hole

152‧‧‧ fourth end

1521‧‧‧4th through hole

153‧‧‧Second runner

154‧‧‧Final capillary structure

16‧‧‧4th ontology

161‧‧‧ seventh plate

1611‧‧‧ sixth connection

162‧‧‧ eighth plate

163‧‧‧fourth chamber

164‧‧‧ sixth capillary structure

17‧‧‧3rd body

171‧‧‧ fifth end

1711‧‧‧5th through hole

172‧‧‧ sixth end

1721‧‧‧ sixth through hole

173‧‧‧ third runner

174‧‧‧ seventh capillary structure

18‧‧‧ rib

19‧‧‧ trench

2‧‧‧Working fluid

3‧‧‧heat source

4‧‧‧ radiator

5‧‧‧Support column

51‧‧‧eighth capillary structure

1 is a perspective exploded view of a first embodiment of a heat dissipating component of the present invention; FIG. 2 is a perspective assembled view of a first embodiment of the heat dissipating component of the present invention; and FIG. 3 is the first heat dissipating component of the present invention. A cross-sectional view of an embodiment; FIG. 4 is a cross-sectional view showing a first embodiment of the heat dissipating component of the present invention; 5 is a perspective view of a second embodiment of the heat dissipating component of the present invention; FIG. 6 is a cross-sectional view of a second embodiment of the heat dissipating component of the present invention; and FIG. 7 is a second embodiment of the heat dissipating component of the present invention. FIG. 8 is a plan view showing a third embodiment of the heat dissipating component of the present invention; and FIG. 9 is a cross-sectional view showing a fourth embodiment of the heat dissipating component of the present invention.

The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings.

1 and 2 are a perspective exploded view and a perspective view and a cross-sectional view of a first embodiment of the heat dissipating component of the present invention. As shown, a heat dissipating component 1 includes a first body 11 . A second body 12, a first tube body 14, a third body 13, a second tube body 15, and a working fluid 2, the first body 11 having a first plate body 111 and a second plate body 112 The first and second plates 111 and 112 respectively define a first chamber 113 corresponding to the cover, and a first capillary structure 114 is disposed in the first chamber 113, and a first opening is formed in the second plate 112. a connecting portion 1121, the second body 12 has a third plate body 121 and a fourth plate body 122. The third and fourth plate bodies 121 and 122 jointly define a second chamber 123 corresponding to the cover. The second chamber 123 is provided with a second capillary structure 124. A second connecting portion 1211 is defined in the third plate body 121. The first tube body 14 has a first end 141 and a second end 142 and a first portion. a first channel 143, and a fourth capillary structure 144 is disposed on the wall of the first tube 14. The first end 141 abuts the first connecting portion 1121 and abuts the top An inner side wall of the first plate body 111, the second end 142 abuts the second connecting portion 1211 and abuts against an inner side wall of the fourth plate body 122, and the fourth capillary structure 144 is The first and second capillary structures 114 and 124 are in capillary contact, and the first end 141 of the first tubular body 14 is open to provide a first through hole 1411 communicating with the first chamber 113. The first tubular body 14 The second end 142 defines at least one second through hole 1421 to communicate with the second chamber 123 to pass the first flow path 143 through the first and second through holes 1411, 1421 and the first and second chambers 113. And a third connecting portion 1221 is further disposed on the second connecting portion 1211, and the third body 13 further has a fifth plate body 131 and a sixth plate body. 132. The fifth and sixth plates 131 and 132 respectively define a third chamber 133 corresponding to the cover, and a third capillary structure 134 is disposed in the third chamber 133, and a fifth capillary 131 is opened at the fifth plate 131. The fourth connecting portion 1311 has a third end 151 and a fourth end 152 and a second flow path 153, and a fifth capillary is disposed on the wall of the second tube 15 a structure 154, the third end 151 is disposed through the first, second, and third connecting portions 1121, 1211, and 1221 and penetrates the first flow path 143 and abuts against the inner side wall of the first plate body 111. The fourth end 152 abuts the fourth connecting portion 1311 and abuts against the inner side wall of the sixth plate 132, and causes the fifth capillary structure 154 and the first and third capillary structures 114. The 134-phase capillary connection, the third end 151 of the second tubular body 15 defines at least one third through hole 1511 communicating with the first chamber 113, and the fourth end 152 of the second tubular body 15 defines at least one The fourth through hole 1521 communicates with the third chamber 133 to allow the second flow path 153 to communicate with the first and third chambers 113, 133 through the third and fourth through holes 1511, 1521; The fluid 2 is filled in the first, second and third chambers 113, 123, 133, and the working fluid 2 can be pure water, inorganic compounds, alcohols, ketones, liquid metals, cold coal or organic compounds. Any of the foregoing first, second, third, fourth, and fifth capillary structures 114, 124, 134, 144, and 154 are selected from the group consisting of a mesh, a fibrous body, a sintered powder body, a mesh, a sintered powder combination, or a micro-groove, etc. The porous structure can provide a capillary force to drive the flow of the working fluid 2; the diameter of the second tubular body 15 is smaller than the diameter of the first tubular body 14, and the third and fourth connecting portions 1221, 1311 The diameter is smaller than the diameter of the first and second connecting portions 1121, 1211, in other words, The diameter of the first tube body 14 is the same as the diameter of the first and second connecting portions 1121, 1211, so that the first tube body 14 and the first and second bodies 11 and 12 can be closely arranged. The connection of the second pipe body 15 is the same as the diameter of the third and fourth connecting portions 1221, 1311, so that the second pipe body 15 and the second and third bodies 12, 13 Can be combined tightly together.

Forming a flange at the first, second, third, and fourth connecting portions 1121, 1211, 1221, and 1311, and the first and second bodies 11, 12 and the first tube body 14 are disposed through the flange. The second and third bodies 12, 13 are more closely coupled to the second tube 15.

Continuing to refer to FIG. 4, through the design of the structure of the present invention, when the first board 111 of the first body 11 contacts a heat source 3 (eg, a CPU, an MCU, a graphics processor, etc.), and the At least one heat sink 4 is disposed between the first and second bodies 11 and 12 and the second and third bodies 12 and 13. However, the heat source 3 may also be set according to the internal arrangement of the electronic device. The fourth body 132 of the third body 13 is in contact with the third body 132 (not shown), and the heat sink 4 is selectively disposed between the first and second bodies 11 and 12 or the second Between the three bodies 12, 13 (not shown), or two heat sinks 4 are disposed between the first and second bodies 11, 12 and between the second and third bodies 12, 13, respectively.

When the first body 11 of the heat dissipating component 1 contacts the heat source 3, the liquid working fluid 2 disposed in the first chamber 113 is heated to form a vapor working fluid 2, and then, a part of the steam. The working fluid 2 flows through the first through hole 1411 of the first pipe body 14 into the second chamber 123 through the first through hole 1411, and the vapor working fluid 2 is in the second chamber 123. After being condensed and converted into the liquid working fluid 2, the second and fourth capillary structures 124, 144 are returned to the first chamber 113 to continue the circulation, and the other part of the vaporous working fluid 2 is passed through the first The first through hole 1411 of the pipe body 14 flows into the third chamber 133 through the second flow path 153, and the vaporous working fluid 2 is also condensed and converted into a liquid state in the third chamber 133. After the working fluid 2, and by the third and fifth capillary structures 134, 154 Reflowing into the first chamber 113 to continue the circulation, and using the heat sink 4 disposed between the first and second bodies 11, 12 and between the second and third bodies 12, 13 to complete the heat dissipating component 1 The internal heat dissipation of the vapor-liquid circulation, in order to achieve multiple heat dissipation effects, and can greatly improve the heat exchange efficiency.

In addition, the two ends of the first and second tubes 14, 15 may be respectively connected to the one side of the first, second, and third bodies 11, 12, and 13 to replace the conventional ones. The support structure in the warm plate effectively realizes the heat dissipating component 1 which saves cost and manufactures man-hour effects.

Please refer to Figures 5, 6, and 7 and refer to Figures 1, 2, and 3, which are perspective, cross-sectional, and cross-sectional views of a second embodiment of the heat dissipating component of the present invention. The corresponding relationship between the components and the components is the same as that of the heat dissipating component. Therefore, the details of the heat dissipating component and the above-mentioned main difference are that the fourth connecting portion 1311 corresponds to the sixth connecting portion 1311. A fifth connecting portion 1321 is defined. The heat dissipating component 1 further includes a fourth body 16 and a third tubular body 17. The fourth body 16 has a seventh plate body 161 and an eighth plate body 162. The seventh and eighth plates 161 and 162 are combined to form a fourth chamber 163, and a sixth capillary structure 164 is disposed in the fourth chamber 163, and a sixth connection is formed in the seventh plate 161. a portion 1611; the third tube body 17 extends through the second and third bodies 12, 13 and is capillaryly connected to the first and fourth bodies 11, 16 , and a third stream is formed inside the third tube body 17 The channel 173 is provided with a seventh capillary structure 174 in the wall of the tube, and the third tube body 17 has a fifth end 171 and a sixth end 1 72. The fifth end 171 extends through the first, second, third, fourth, and fifth connecting portions 1121, 1211, 1221, and 1311, and passes through the second flow path 153 and abuts against the first plate. The inner side wall of the body 111, the sixth end 172 abuts the sixth connecting portion 1611 and abuts against the inner side wall of the eighth plate 162, and makes the seventh capillary structure 174 and the first and sixth capillary The first end 171 is connected to the first chamber 113, and the sixth end 172 defines at least one sixth through hole 1721 to communicate with the first end. a fourth chamber 163, wherein the third flow passage 173 communicates with the first and fourth chambers 113, 163 through the fifth and sixth through holes 1711, 1721; the tube of the third tube body 17 The diameter is smaller than the diameter of the second pipe body 15, and the diameters of the fifth and sixth connecting portions 1321, 1611 are smaller than the diameters of the third and fourth connecting portions 1221, 1311, and the fifth and sixth connections are The flanges are formed at the portions 1321, 1611 such that the fourth body 16 and the third tubular body 17 can be tightly coupled to the third body 13.

Similarly, when the first body 11 contacts the heat source 3, the liquid working fluid 2 disposed in the first chamber 113 will form a vapor working fluid 2 when heated, and a part of the working fluid 2 will be like The first embodiment of the foregoing is circulated, and a portion of the vaporous working fluid 2 flows through the first through hole 1411 of the first pipe body 14 through the third flow path 173 into the fourth chamber 163, and The vaporous working fluid 2 is condensed and converted into the liquid working fluid 2 in the fourth chamber 163, and is recirculated through the sixth and seventh capillary structures 164, 174 into the first chamber 113, thereby further circulating. Complete the heat dissipation of the vapor-liquid cycle to achieve multiple heat dissipation.

In other words, the structural design of the present invention is not limited to the foregoing first and second embodiments, and the number of the body and the tube can be adjusted (increase or decrease) according to the needs of the user to achieve the best. Effect.

Please refer to FIG. 8 , which is a top view of a third embodiment of the heat dissipating component of the present invention. The corresponding relationship between the components of the heat dissipating component and the components is the same as that of the heat dissipating component, and therefore will not be further described herein. The main difference between the heat dissipating component and the foregoing is that a plurality of ribs 18 and a plurality of trenches 19 can be formed on the inner walls of the first and second tubular bodies 14 and 15 and are arranged at intervals or at intervals. The fourth and fifth capillary structures 144, 154 are respectively disposed on the ribs 18 and the grooves 19 of the first and second tubular bodies 14, 15 respectively, and the first and second tubular bodies 14 are added through the structure. The area of the fourth and fifth capillary structures 144, 154 of the inner wall is better for recirculating the liquid working fluid in the tube; for the same reason, the arrangement of the aforementioned rib 18 and the groove 19 is not limited thereto. It can be arbitrarily set on the required pipe body according to the needs of the user.

FIG. 9 is a cross-sectional view showing a fourth embodiment of the heat dissipating component of the present invention. The corresponding relationship between the components of the heat dissipating component and the components is the same as that of the heat dissipating component, and therefore will not be further described herein. The main difference between the heat dissipating component and the foregoing is that the second flow channel 153 of the second pipe body 15 further has a support column 5, and the two ends thereof are respectively abutted to the first plate body 111 and the sixth The inner side wall of the plate body 132 is provided with an eighth capillary structure 51 on the outer side of the support column 5. The mesh structure, the fiber body, the sintered powder body, the mesh and the sintered powder combination or the micro-groove may be selected as the embodiment. The arrangement of the support column 5 can greatly increase the rate of return of the liquid working fluid 2 inside the heat dissipating member 1, and has the effect of supporting.

As described above, the present invention has the following advantages as compared with the prior art: 1. has multiple heat dissipation effects; 2. greatly improves heat exchange efficiency; 3. eliminates the cost and manufacturing man-hour of the support structure of the conventional temperature equalization plate.

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

1‧‧‧ Heat Dissipation Components

111‧‧‧ first board

112‧‧‧Second plate

113‧‧‧First chamber

114‧‧‧First capillary structure

121‧‧‧ Third plate

1211‧‧‧Second connection

122‧‧‧fourth plate

123‧‧‧Second chamber

124‧‧‧Second capillary structure

131‧‧‧ Fifth plate

1311‧‧‧fourth connection

132‧‧‧6th plate

133‧‧‧ third chamber

134‧‧‧ Third capillary structure

143‧‧‧First runner

144‧‧‧Fourth capillary structure

153‧‧‧Second runner

154‧‧‧Final capillary structure

Claims (11)

A heat dissipating component includes: a first body having a first plate body and a second plate body, wherein the first and second plate bodies jointly define a first chamber, and the second plate body is opened a first connecting portion; a second body having a third plate body and a fourth plate body, wherein the third and fourth plate bodies jointly define a second chamber, and the third plate body defines a second plate a second connecting portion, wherein the fourth connecting portion further defines a third connecting portion; a first tube body having a first end and a second end and a first flow path, the first One end of the first connecting portion abuts against the inner side wall of the first plate body, and the second end abuts the second connecting portion and abuts against an inner side wall of the fourth plate body, The first end opening is configured to have a first through hole communicating with the first chamber, and the second end is configured to open at least one second through hole to communicate with the second chamber, so that the first flow path passes through the first and second passages The hole is connected to the first and second chambers; a third body has a fifth plate body and a sixth plate body, and the fifth and sixth plates are corresponding to the cover And jointly defining a third chamber, the fifth plate body defines a fourth connecting portion; a second tube body having a third end and a fourth end and a second flow path The first, second, and third connecting portions are disposed and penetrate the first flow path and abut against the inner side wall of the first plate body, and the fourth end abuts the fourth connecting portion and abuts against the The third side of the second tube body has at least one third through hole communicating with the first chamber, and the fourth end of the second tube body is provided with at least one fourth through hole Connecting the third chamber to connect the second flow passage to the first and third chambers through the third and fourth through holes; a working fluid is filled in the first, second, third Inside the chamber. The heat dissipating component of claim 1, wherein the first chamber has a first capillary structure, the second chamber has a second capillary structure, and the third chamber has a third capillary structure . The heat dissipating component of claim 2, wherein the tube wall of the first tube body has a fourth capillary structure, and the tube wall of the second tube body has a fifth capillary structure. The heat dissipating component of claim 3, wherein the fourth capillary structure is capillaryly connected to the first and second capillary structures. The heat dissipating component of claim 3, wherein the fifth capillary structure is capillaryly connected to the first and third capillary structures. The heat dissipating component of claim 1, wherein the pipe diameter of the second pipe body is smaller than the pipe diameter of the first pipe body. The heat dissipating component of claim 1, wherein a fifth connecting portion is further disposed at the sixth plate body corresponding to the fourth connecting portion, and the heat dissipating component further has a fourth body having a seventh a plate body and an eighth plate body, wherein the seventh and eighth plates correspond to the cover and jointly define a fourth chamber, and a sixth connecting portion is opened at the seventh plate body, and a third pipe body is disposed The second body and the third body are connected to the first and fourth bodies, the third pipe body defines a third flow path, and the third pipe body has a fifth end and a sixth end, the fifth The end portion penetrates the first, second, third, fourth, and fifth connecting portions and the second flow path and abuts against the inner side wall of the first plate body, and the sixth end abuts the sixth connecting portion and abuts the top The fifth end defines at least one fifth through hole to communicate with the first chamber, and the sixth end defines at least one sixth through hole to communicate with the fourth chamber. The third flow passage is in communication with the first and fourth chambers. The heat dissipating component of claim 7, wherein the fourth chamber has A sixth capillary structure, the tube wall of the third tube body has a seventh capillary structure, and the seventh capillary structure is capillaryly connected to the first and sixth capillary structures. The heat dissipating component of claim 8, wherein the pipe diameter of the third pipe body is smaller than the pipe diameter of the second pipe body. The heat dissipating component of claim 3, wherein the first and second tubes have a plurality of ribs and a plurality of grooves formed on the inner wall of the tube, and are arranged at intervals or at intervals, and are first The fourth and fifth capillary structures are respectively disposed on the ribs and the grooves of the two tubes. The heat dissipating component of claim 1, wherein the second flow channel further has a support column, and the two ends of the support column are respectively abutted to the inner side walls of the first and sixth plates. The outer body of the support column is provided with an eighth capillary structure.