TWI641309B - Heat dissipation element - Google Patents

Abstract

A heat dissipating component includes a first body, a second body, and a first and second working fluid, wherein the first body has a first space, and the first body has a convex body at a side thereof. The protrusion has a second space in communication with the first space and collectively defines a first chamber, the first chamber is filled with the first working fluid, and the second body has a second chamber and is filled with the a second working fluid, the second body side is fixedly connected to one end of the convex body, and the first chamber is not in communication with the second chamber, and the design of the invention not only retains better heat In addition to the efficiency and uniform temperature effect, the production cost can be greatly reduced.

Description

Heat sink

The invention relates to a heat dissipating component, in particular to a heat dissipating component which can greatly reduce the production cost and can maintain better heat transfer 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 which can greatly reduce the production cost.

A secondary object of the present invention is to provide a heat dissipating component that can maintain heat transfer efficiency and uniform temperature effect.

A secondary object of the present invention is to provide a heat dissipating component having a remote heat dissipation effect.

To achieve the above objective, the present invention provides a heat dissipating component including a first body, a second body, and a first and second working fluid. The first body has a first space and at least one side of the first body is protruded. a convex body having a second space and communicating with the first space to jointly define a first chamber, the second body having a second chamber, the second body side and the convex body One end is connected and fixed, the first chamber is not in communication with the second chamber, the first working fluid is filled in the first chamber, and the second working fluid is filled in the second chamber Through the design of the invention, not only the better heat transfer efficiency and the uniform temperature effect can be maintained, but also the vapor-liquid circulation efficiency is effectively increased, and the production cost can be greatly reduced.

1‧‧‧ Heat Dissipation Components

10‧‧‧First Ontology

101‧‧‧ first board

1011‧‧‧Flange

102‧‧‧Second plate

103‧‧‧First chamber

103a‧‧‧First space

103b‧‧‧Second space

104‧‧‧First capillary structure

105‧‧‧Opening

11‧‧ ‧ convex

111‧‧‧closed end

112‧‧‧Open end

113‧‧‧through hole

115‧‧‧Second capillary structure

116‧‧‧ convex

117‧‧‧ Groove

12‧‧‧Second ontology

121‧‧‧ Third plate

122‧‧‧fourth plate

123‧‧‧Second chamber

124‧‧‧ Third capillary structure

13‧‧‧Cylinder

131‧‧‧ first top

132‧‧‧second top

133‧‧‧Fourth capillary structure

14‧‧‧First working fluid

15‧‧‧Second working fluid

2‧‧‧heat source

3‧‧‧heatsink

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. FIG. 4 is a partial enlarged view of a first embodiment of a heat dissipating component of the present invention; FIG. 5 is a schematic view of the first embodiment of the heat dissipating component of the present invention; A schematic diagram of the implementation of the second embodiment of the heat dissipating component; 7 is a perspective exploded view of a third embodiment of the heat dissipating component of the present invention; FIG. 8 is a perspective assembled view of a third embodiment of the heat dissipating component of the present invention; and FIG. 9 is a third heat dissipating component of the present invention. FIG. 10 is a partially enlarged view of a third embodiment of a heat dissipating component of the present invention; FIG. 11 is an exploded perspective view of a fourth embodiment of the heat dissipating component of the present invention; FIG. 13 is a cross-sectional view showing a fourth embodiment of the heat dissipating component of the present invention; and FIG. 14 is a partially enlarged view showing a fourth embodiment of the heat dissipating component of the present invention; Figure 15 is a plan sectional view showing a fifth embodiment of the heat dissipating component of the present invention; Figure 16 is a cross-sectional view showing a fifth embodiment of the heat dissipating component of the present invention; and Figure 17 is a sixth embodiment of the heat dissipating component of the present invention. FIG. 18 is a cross-sectional view showing a sixth embodiment of the heat dissipating member 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.

Please refer to the figures 1 , 2 , 3 and 4 , which are perspective exploded views and sectional views and partial enlarged views of the first embodiment of the heat dissipating component of the present invention. As shown, a heat dissipating component 1 includes a first body 10, a second body 12, a first working fluid 14 and a second working fluid 15, wherein the first body 10 has a first plate body 101 and a second plate body 102, the first The two plates 101 and 102 are combined to form a first space 103a corresponding to the cover, and the first plate body 101 protrudes upward (ie, outwardly) at least one protrusion 11 , in other words, the protrusion 11 is formed by the first The integrally formed structure is formed by the protrusion of the plate body 101. The protrusion 11 is formed by applying a pressure to the first plate body 101 by mechanical processing. The protrusion 11 has a second space 103b. The first and second spaces 103a and 103b collectively define a first chamber 103, and the first The inner wall of the chamber 103 is provided with a first capillary structure 104, and the second space 103b and the first space 103a are in communication with each other. In the embodiment, the convex body 11 is described as one, but not In this embodiment, the number of the protrusions 11 can be adjusted to one or more according to the needs and design of the user. The second body 12 has a third plate 121 and a fourth plate 122. The third and fourth plates 121 and 122 are combined to form a second chamber 123 corresponding to the cover, and a third capillary structure 124 is disposed on the inner wall of the second chamber 123. One end of the convex body 11 is fixedly connected to each other, and one end of the convex body 11 is fixedly connected to the third plate body 121 in a manner of welding, machining, or adhesive or direct bonding. The manner, but not limited to the limit, the user may also use other equivalent means for the joint fixation, the first chamber 103 and the second chamber 123 are not in communication; the first working fluid 14 Filled in the first chamber 103, the second working fluid 15 Filled in the second chamber 123, the first and second working fluids 14, 15 may be pure water, inorganic compounds, alcohols, ketones, liquid metals, cold coal or organic compounds; The first and third capillary structures 104 and 124 are selected from the group consisting of a mesh, a fibrous body, a sintered powder body, a mesh and a sintered powder combination or a micro-groove, and the like, and the first and second bodies 10, 12 may select a temperature equalizing plate or a hot plate, but is not limited thereto, and may be other equivalents in specific implementations.

Continuing to refer to FIG. 5, through the design of the structure of the present invention, when the second board 102 of the first body 10 contacts a heat source 2 (such as a CPU, an MCU, a graphics processor, or other electrons that generate heat) At least one heat sink (heat sink fin) 3 is disposed between the first and second bodies 10, 12; and the liquid state disposed in the first chamber 103 when dissipating heat A working fluid 14 forms a vaporous first working fluid 14 due to heat. At this time, a portion of the vaporous first working fluid 14 moves toward the first space 103a, and the vaporous first working fluid 14 When the first space 103a is close to the first plate 101, the cause is The uniform temperature and the action of the external heat sink 3 condense and convert the vaporous first working fluid 14 into the liquid first working fluid 14, and then the liquid first through the first capillary structure 104 disposed on the inner wall of the first chamber 103. The working fluid 14 is capillaryly recirculated into the first space 103a to continue to circulate, and the other portion of the vaporous first working fluid 14 is branched to the second space 103b, and the vaporous first working fluid 14 is passed through the convex body 11 The heat is transferred to the second body 12 for heat dissipation to have the characteristics of remote heat dissipation.

Please refer to FIG. 6 and refer to the first, second, and third figures, which are schematic diagrams of the second embodiment of the heat dissipating component of the present invention, the corresponding components of the heat dissipating component and the corresponding relationship between the components and the heat dissipation. The components are the same, so the details are not described here, but the main difference between the heat dissipating component and the foregoing is that the heat sink 3 is attached to the fourth plate 122 of the second body 12 by using the air. The heat sink 3 having a larger contact area enables the heat of the fourth plate body 122 to be more quickly transmitted to the air, thereby improving the condensation efficiency of the overall heat dissipating component 1.

Please refer to FIGS. 7, 8, 9, and 10, which are perspective exploded view, sectional view, and partial enlarged view of a third embodiment of the heat dissipating component of the present invention. The corresponding relationship is the same as that of the heat dissipating component. Therefore, the difference between the heat dissipating component and the main difference is that the first plate body 101 has at least one opening 105, and the opening 105 communicates with the first portion. a space 103a, the protrusion 11 further has a closed end 111 and an open end 112 and jointly define the second space 103b. The open end 112 and the opening 105 are connected to each other to make the second space 103b and The first space 103a is in communication with the second space 103, and the second capillary structure 115 is connected to the first capillary structure 104; wherein, the aforementioned By "capillary connection" is meant the porosity of the second capillary structure 115 of the first capillary structure 104 that communicates with the second capillary structure 115 of the projection 11 such that capillary forces can be transferred or extended from the second capillary structure 115 of the projection 11. First capillary structure 104, thus cooling A working fluid 14 can be returned from the second capillary structure 115 of the convex body 11 by capillary force and gravity to the first space 103a, and the second capillary structure 115 is selected as a mesh. , fibrous body, sintered powder body, mesh and A sintered powder combination or a micro-groove or the like can provide a capillary force to drive the flow of the working fluid for the structure having a plurality of pores; in the embodiment, a flange 1011 is protruded upward from the first plate body 101, and the convex The edge 1011 is correspondingly disposed on the periphery of the opening 105. The flange 1011 can effectively increase the bonding area with the protrusion 11, so that the protrusion 11 can be firmly and tightly coupled to the first body 10; In this embodiment, the convex body 11 is a heat pipe, but is not limited thereto, and may be other equivalents in a specific implementation. In other words, the difference between the present embodiment and the foregoing first embodiment is that The convex body 11 and the first plate body 101 are combined with two different components to form the first body 10, and the second body 12 is combined to form the heat dissipating component 1 of the present invention. The effect.

Please refer to Figures 11, 12, 13, and 14 and refer to Figures 7, 8, and 9 for a perspective view, a perspective view, a cross-sectional view, and a partial enlarged view of 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 described herein. However, the main difference between the heat dissipating component and the foregoing is that the open end 112 of the protruding body 11 is Abutting against the inner side wall of the second plate body 102 such that the second capillary structure 115 of the protrusion 11 is in capillary contact with the first capillary structure 104 of the first body 10, and the open end 112 of the protrusion 11 Opening at least one through hole 113, so that the first working fluid 14 of the first space 103a can flow through the through hole 113 to the second space 103b, so as to complete the heat dissipation of the vapor-liquid circulation inside the heat dissipating component 1 Better heat transfer efficiency and uniform temperature effect. 15 and FIG. 16 are a top cross-sectional view and a cross-sectional view of a fifth embodiment of the heat dissipating component of the present invention. The corresponding relationship between the components and components of the heat dissipating component is the same as that of the heat dissipating component. Therefore, the main difference between the heat dissipating component and the foregoing is that the inner wall of the convex body 11 is formed with a plurality of convex portions 116, and the convex portions 116 are annularly arrayed and axially extended in the convex body 11. The wall has at least one groove 117 between the convex portions 116. As shown in Fig. 15, the structure of the convex body 11 is viewed from a plan view. The convex portions 116 are annularly spaced from each other to form a gear-like shape, but To be limited thereto, the adjacently disposed protrusions 116 may also be non-equidistantly arranged, and the grooves 117 may also form other shapes, and the first capillary knot The structure 104 is formed on the surfaces of the convex portions 116 and the grooves 117. Since the convex portions 116 and the grooves 117 increase the surface area of the inner wall of the convex body 11, the surface on the inner wall surface of the convex body 11 The number of pores of a capillary structure 104 also increases, and the effect of increasing the vapor-liquid circulation of the first working fluid 14 in the first chamber 103 is achieved to achieve a better heat dissipation effect.

17 and 18 are top cross-sectional views and cross-sectional views of a sixth embodiment of the heat dissipating component of the present invention. The corresponding relationship between the components and components of the heat dissipating component is the same as that of the heat dissipating component. Therefore, the main difference between the heat dissipating component and the foregoing is that the first chamber 103 is provided with a cylinder 13 having a first top end 131 and a second top end 132. The first and second ends 131 and 132 respectively extend to connect the inner wall of the second plate body 102 and the inner wall of the closed end 111 of the protrusion 11. The surface of the column 13 is provided with a fourth capillary structure 133, which is selected as a mesh. Any one of a fibrous body, a sintered powder body, a mesh and a sintered powder combination or a micro-groove, and the fourth capillary structure 133 and the first capillary structure 104 are in contact with each other, whereby the first portion of the second space 103b is located The working fluid 14 can be recirculated from the fourth capillary structure 133 in addition to being permeable to the first capillary structure 104 of the protrusion 11 to enhance the first working fluid 14 in the first chamber 103. The role of the vapor-liquid cycle, to achieve better Cooling effect.

As described above, the present invention has the following advantages as compared with the prior art: 1. greatly reducing the production cost; 2. maintaining better heat transfer efficiency and uniform temperature effect; 3. having the effect of remote heat dissipation.

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.

Claims (16)

A heat dissipating component comprises: a first body, which is a temperature equalizing plate or a hot plate, the first body has a first space, and the first body has a convex body at one side, the convex body has a second space is connected to the first space, the first and second spaces are jointly defined to form a first chamber; a second body is a temperature equalizing plate or a hot plate, and the second body has a a second chamber, the second body side is fixedly connected to one end of the convex body, and the first chamber is not in communication with the second chamber; a first working fluid is filled in the a first working chamber; and a second working fluid filled in the second chamber. The heat dissipating component of claim 1, wherein the convex system is formed by integrally forming one side of the first body and protruding upward. The heat dissipating component of claim 2, wherein the first body is subjected to a pressure by machining to form the protrusion. The heat dissipating component of claim 1, wherein the first body side has at least one opening, the opening is connected to the first space, and the convex body has a closed end and an open end. The second space is defined together, and the open end is connected to the opening to connect the second space with the first space. The heat dissipating component of claim 4, wherein the first body further has a first plate body and a second plate body, and the first and second plate bodies are combined to jointly define the first cavity. a convex system protruding from the first plate. The heat dissipating component of claim 5, wherein the opening is formed on the first plate. The heat dissipating component of claim 5, wherein the second body further has a third plate body and a fourth plate body, wherein the third and fourth plate bodies are combined to jointly define the second cavity. The closed end of the convex body is fixedly connected to the third plate body. The heat dissipating component of claim 7, wherein the inner wall of the first chamber has a first capillary structure, and the inner wall of the second chamber has a third capillary structure. The heat dissipating component of claim 8, wherein the inner wall of the first space has the first capillary structure, and the inner wall of the second space further has a second capillary structure, the first capillary structure It is capillaryly connected to the second capillary structure. The heat dissipating component according to claim 9, wherein the first, second, and third capillary structures are selected from the group consisting of a mesh, a fibrous body, a sintered powder body, a mesh, a sintered powder combination, or a microgroove. The composition of the group. The heat dissipating component of claim 10, wherein the open end of the convex body abuts against the inner side wall of the second plate body, and the open end of the convex body defines at least one through hole to make the first The space communicates with the second space through the through hole. The heat dissipating component of claim 7, wherein the first plate body protrudes upwardly from a flange, and the flange is correspondingly protruded from a periphery of the opening. The heat dissipating component of claim 7, wherein the closed end of the convex body is fixedly connected to the third plate body by means of welding, machining or glue or direct bonding. One. The heat dissipating component of claim 10, wherein the inner wall of the convex body is formed with a plurality of convex portions, and the annular array of the convex portions is axially extended and disposed on the inner wall, and at least the convex portions have at least A groove, the first capillary structure is formed on the protrusions and the grooves. The heat dissipating component of claim 10, wherein the first chamber is provided with a cylinder, the cylinder has a first top end and a second top end, and the first and second top ends respectively extend to connect the a closed end of the second plate body and the convex body, the surface of the column body is provided with a fourth capillary structure, the fourth capillary structure is connected to the first capillary structure, and the fourth capillary structure is selected as a mesh, a fiber body, and a sintered powder. Any combination of body, mesh and sintered powder or micro-trench. The heat dissipating component of claim 4, wherein the convex system is a heat pipe.