TW202228499A - Fluid cooling type heat dissipation module - Google Patents

Abstract

A fluid cooling type heat dissipation module is used to solve the problem of poor heat dissipation efficiency of the conventional vapor chamber. The fluid cooling type heat dissipation module includes a body and two conveying parts. The body with a plurality of first laminated plates and a plurality of second laminated plates arranged in layers, and a chamber is provided between any two adjacent first and second laminated plates. The several chambers are connected at intervals, so that several of the connected chambers form a phase change chamber, and the phase change chamber is in a closed state and filled with a phase change liquid, and several other communicating chambers form a fluid chamber. The two conveying parts are communicated with the fluid chamber.

Description

Fluid Cooled Cooling Modules

The present invention relates to a heat dissipation module, in particular to a fluid cooling type heat dissipation module that conducts heat energy to a circulating fluid through a phase change liquid, and takes away the heat energy by the circulating fluid.

In order to avoid local overheating of the electronic device, the current heat dissipation method of the electronic device is mainly to install a temperature chamber inside the electronic device, and the temperature chamber can be attached to a heating area of the electronic device. The warm plate can have an upper plate body and a lower plate body, and the upper plate body and the lower plate body are combined to form a cavity, and the cavity can be used to fill a working liquid; thereby, the heat energy generated by the heating area It can be diffused to the vapor chamber to effectively prevent heat energy from accumulating in the heat-generating area, and the heat dissipation effect can be achieved.

The above-mentioned conventional temperature equalizing plate, even if the heating area can heat the working liquid and make the working liquid vaporize, the gaseous working liquid system evaporates to the side away from the heating area and then condenses after releasing heat, and takes the heat away from the heating area. However, since the vaporizing plate dissipates heat only by the gas-liquid phase change of the working liquid, the heat dissipating effect of the vaporizing plate on the heat-generating area is limited, resulting in poor heat dissipation efficiency.

In view of this, the conventional fluid-cooled heat dissipation module still needs to be improved.

In order to solve the above problems, the purpose of the present invention is to provide a fluid cooling type heat dissipation module, which can improve the good heat dissipation performance.

Another object of the present invention is to provide a fluid cooling type heat dissipation module, which can improve the convenience of assembly.

Another object of the present invention is to provide a fluid cooling type heat dissipation module, which can reduce the manufacturing cost.

Another object of the present invention is to provide a fluid-cooled heat dissipation module, which can improve heat exchange efficiency.

The directional or similar terms used throughout this disclosure, such as "front", "back", "left", "right", "top (top)", "bottom (bottom)", "inside", "outside" , "side surface", etc., mainly refer to the directions of the attached drawings, each directionality or its similar terms are only used to assist the description and understanding of the various embodiments of the present invention, and are not intended to limit the present invention.

The use of the quantifier "a" or "an" for the elements and components described throughout the present invention is only for convenience and provides a general meaning of the scope of the present invention; in the present invention, it should be construed as including one or at least one, and a single The concept of also includes the plural case unless it is obvious that it means otherwise.

Similar terms such as "combined", "combined" or "assembled" mentioned in the whole text of the present invention mainly include the components that can be separated without destroying the components after the connection, or the components can not be separated after being connected, which are common knowledge in the field. It can be selected according to the material of the components to be connected or the assembly requirements.

The fluid cooling type heat dissipation module of the present invention comprises: a main body with a plurality of first laminated plates and a plurality of second laminated plates arranged in layers, and between any two adjacent first laminated plates and second laminated plates A chamber, the several chambers are in interval communication, so that the several connected chambers together form a phase change chamber, the phase change chamber is in a closed state and filled with a phase change liquid, and the other several connected chambers form a phase change chamber. The connected chambers together form a fluid chamber; and two fluid delivery parts, which communicate with the fluid chambers.

Accordingly, in the fluid cooling type heat dissipation module of the present invention, the phase change liquid in the phase change chamber can absorb heat energy from the liquid state and evaporate into a gaseous state, so that the phase change liquid in the phase change chamber can absorb the heat of a heat source. Thermal energy, so that the phase change liquid can use the gas-liquid phase change mechanism to achieve heat transfer, and the circulating fluid in the fluid chamber can quickly absorb the heat energy in the phase change chamber, so that the phase change chamber The phase change liquid can be rapidly condensed from a gaseous state to a liquid state to absorb heat, so that the circulating fluid in the fluid chamber can further cool the phase change liquid in the phase change chamber, which can achieve the effect of improving good heat dissipation efficiency.

Wherein, the two flow delivery parts can be arranged diagonally to connect with the main body. In this way, the circulating fluid has a large flow range, and can flow smoothly and take away heat energy, so that the heat energy is not easy to stay inside the body, which has the effect of improving the heat dissipation efficiency.

Wherein, each of the plurality of first laminated plates may have a plurality of first convex portions, the first convex portion may have a first through hole, each of the plurality of second laminated plates may have a plurality of second convex portions, the The second convex portion may have a second through hole, any two adjacent first convex portions are connected with the second convex portion, and the first through hole and the second through hole communicate with each other, and the pair is located in one of the phase change chambers. The two first protruding parts may further have at least one side through hole, and the two second protruding parts located in the fluid chamber may further have at least one side through hole, so that the first protruding part with the side through hole can be connected with each other. The connected second protrusions may have no side through holes, and the first protrusions connected with the second protrusions having the side through holes may have no side through holes. In this way, the structure is simple and easy to assemble, which has the effect of improving the convenience of assembling.

Wherein, the plurality of first laminated plates may have a plurality of first series connection holes, the plurality of second laminated plates may have a plurality of second series connection holes, the body may have a plurality of series connection pipes, and the plurality of series connection pipes It can penetrate and combine the first series connection holes of the plurality of first laminated plates and the second series connection holes of the plurality of second laminated plates, the pipe wall of the series pipes can have a plurality of perforations, the series The plurality of perforations of two of the tubes may communicate with the phase change chamber, and the plurality of perforations of the other two of the plurality of serial tubes may communicate with the fluid chamber. In this way, the structure is simple and easy to assemble, which has the effect of improving the convenience of assembling.

Wherein, the body may have a plurality of first protrusions, and the plurality of first protrusions are connected to the plurality of first laminated plates and are located in the phase change chamber. In this way, the contact area between the first laminated plate and the phase change liquid can be increased, which can improve the heat exchange efficiency and has the effect of improving the heat dissipation efficiency.

Wherein, the body may have several second protruding pillars, the several second protruding pillars are connected to the several second laminated plates and are located in the fluid chamber, and the distribution density of the several second protruding pillars may be greater than the number of the second protruding pillars. The distribution density of the first convex pillars. In this way, it is avoided that the number of the first protrusions is too large to occupy the space of the phase change chamber, and the contact area between the second laminated plate and the circulating fluid can be increased, and the circulating fluid can be continuously circulated and flowed. The heat energy of the phase change liquid can be taken away, so that the heat exchange efficiency can be greatly improved, and the heat dissipation efficiency can be improved.

Wherein, the plurality of first laminates may have several corrugated portions, and the several second laminates may have several corrugated portions. In this way, the contact area between the first laminated plate, the second laminated plate, the phase change liquid and the circulating fluid can be increased, and the corrugated parts of the first laminated plates and the second laminated plates can be increased. The wave part can quickly transfer the heat energy of the phase change liquid to the circulating fluid, which has the effect of improving the heat exchange efficiency.

The fluid-cooling heat dissipation module of the present invention may further include a plurality of sealing plugs, and the plurality of sealing plugs may be combined and located on the main body, so that the phase change chamber is in a sealed state and the fluid chamber is only communicated with the two flow portions . In this way, the outflow of the phase change liquid can be avoided, which has the effect of reducing the manufacturing cost.

The fluid-cooled heat dissipation module of the present invention may further include a heat-conducting seat, and the heat-conducting seat may be thermally connected to the bottom end of the body. In this way, the heat energy of the heat source can be uniformly dispersed to the plurality of first laminated plates and the plurality of second laminated plates through the heat-conducting seat, which has the effect of improving the heat dissipation effect.

Wherein, the fluid chamber can circulate a circulating fluid, and the circulating fluid and the phase change liquid can be different liquids. In this way, an appropriate circulating fluid and phase change liquid can be selected, and the circulating speed of the gas and liquid phases can be increased, which has the effect of achieving a better heat dissipation effect.

Wherein, the phase change liquid can be a non-conductive liquid, and the circulating fluid can be water. In this way, the phase change liquid and the circulating fluid can be easily obtained, which has the effect of reducing the manufacturing cost.

In order to make the above-mentioned and other objects, features and advantages of the present invention more obvious and easy to understand, the preferred embodiments of the present invention are exemplified below, and are described in detail as follows in conjunction with the accompanying drawings:

Please refer to FIG. 1 , which is the first embodiment of the fluid-cooled heat dissipation module of the present invention, which includes a main body 1 and two flow delivery parts 2 , and the two flow delivery parts 2 are connected to the main body 1 .

Referring to Figures 1, 2, and 5, the body 1 has several first laminates 11 and several second laminates 12. The several first laminates 11 and the several second laminates 12 can be, for example, Made of metal materials with high thermal conductivity such as copper or aluminum, the plurality of first laminates 11 and the plurality of second laminates 12 can be combined by welding (for example: reflow or lightning) to form a stacked arrangement. And there is a chamber U between any two adjacent first stack plates 11 and second stack plates 12 . Wherein, the structure on the chamber U and the first laminated board 11 and the second laminated board 12 can be formed by processing methods such as stamping, die casting, dry etching, wet etching or plasma etching; when the etching processing method is selected , which can accurately control the U depth of the chamber in μm, which can improve the processing precision, and can be applied to smaller electronic products to ensure the thinning requirements.

Please refer to Figures 3, 4 and 5. In detail, the plurality of first laminated plates 11 and the plurality of second laminated plates 12 are arranged in a staggered manner, that is, the first laminated plate 11 and the second laminated plate 12 , the arrangement of the first laminated board 11, the second laminated board 12, the first laminated board 11, the second laminated board 12..., the several chambers U are in interval communication, so that several of the connected chambers U A phase change chamber S1 is formed together, the phase change chamber S1 is in a closed state and filled with a phase change liquid L1, and several other connected chambers U together form a fluid chamber S2, and the fluid chamber S2 is used for a The circulating fluid L2 circulates; that is, the plurality of chambers U can be divided into two groups, the two groups of chambers U can be communicated with each other, and the two groups of chambers U can be the phase change chamber S1 and the fluid chamber respectively. Room S2.

Wherein, the phase change liquid L1 can be water, alcohol or other low boiling point liquid; preferably, the phase change liquid L1 can be a non-conductive liquid, the phase change liquid L1 can absorb heat from the liquid state and evaporate into a gaseous state , and then use the gas-liquid phase change mechanism of the phase change liquid L1 to achieve heat transfer; and because the phase change chamber S1 is in a closed state, the phase change liquid L1 can be prevented from being formed into a gaseous state and then lost, and the internal The air occupies and is compressed to the space after the phase change liquid L1 is formed into a gaseous state, thereby affecting the heat dissipation efficiency; and the composition of the circulating fluid L2 can be liquid or gas, which is not limited in the present invention. In this embodiment, the The circulating fluid L2 can be, for example, water.

Please refer to Figures 2 and 5, it is particularly noted that the plurality of first laminated plates 11 and the plurality of second laminated plates 12 can be stacked on each other to form the phase change chamber S1 and the fluid chamber S2 is the principle, the shape and structure of the first laminated board 11 and the second laminated board 12 are not limited in the present invention; in this embodiment, each of the first laminated board 11 may have several A convex part 111, the first convex part 111 may have a first through hole 112, and two of the first convex parts 111 located in the phase change chamber S1 may further have at least one side through hole 113; the number of Each of the second laminate plates 12 may have a plurality of second protrusions 121 , the second protrusions 121 may have a second through hole 122 , and two of the second protrusions 121 located in the fluid chamber S2 may It also has at least one side through hole 123 , any two adjacent first protrusions 111 are connected with the second protrusion 121 and the first through hole 112 is communicated with the second through hole 122 . The side of the first protrusion 111 The through holes 113 and the side through holes 123 of the second protruding portion 121 may not be positioned relative to each other, that is, the positions of the side through holes 113 of the first laminated board 11 and the side through holes 123 of the second laminated board 12 are different. , so that the second convex part 121 connected with the first convex part 111 having the side through hole 113 may not have the side through hole 123, and the first convex part connected with the second convex part 121 with the side through hole 123 111 may not have side through holes 113 .

Referring to FIG. 9, in addition, the plurality of first laminates 11 may have several corrugated portions 114, and the several second laminates 12 may have several corrugated portions 124; in this way, the first laminates 11 can be increased. The contact area between the laminated plate 11, the second laminated plate 12 and the phase change liquid L1 and the circulating fluid L2, the plurality of wave parts 114 and the plurality of wave parts 124 can quickly heat the phase change liquid L1. Transferring to the circulating fluid L2 can improve the heat exchange efficiency, thereby improving the heat dissipation efficiency.

Please refer to FIGS. 7 and 8 . Furthermore, the main body 1 may have several first protruding posts 13 and several second protruding posts 14 , and the several first protruding posts 13 are connected to the several first laminated boards 11 . and is located in the phase change chamber S1; wherein, the first protruding post 13 can be combined with the first laminated plate 11 by an assembly method (for example: welding) after being manufactured separately, or, the first laminated plate 11 The first protruding post 13 may be integrally formed, which is not limited in the present invention. By disposing the plurality of first protrusions 13 , the contact area between the first laminated plate 11 and the phase change liquid L1 can be increased, the heat exchange efficiency can be improved, and the heat dissipation efficiency can be improved.

In addition, the plurality of second protrusions 14 are connected to the plurality of second laminated boards 12 and are located in the fluid chamber S2, the second protrusions 14 and the second laminated board 12 can be manufactured separately and then assembled (for example: welding), or, the second laminate 12 may be integrally formed with the second protrusions 14, which is not limited by the present invention, and the distribution density of the plurality of second protrusions 14 may preferably be greater than the The distribution density of several first protrusions 13; in this way, it is avoided that the number of the first protrusions 13 is too large to occupy the space of the phase change chamber S1, and the second laminated plate 12 and the circulating fluid L2 can be increased. The heat energy of the phase change liquid L1 can be taken away by the continuous circulating flow of the circulating fluid L2, so that the heat exchange efficiency can be greatly improved, and the heat dissipation efficiency can be improved.

Referring to Figures 1 and 3, the two fluid delivery parts 2 are connected to the body 1 diagonally, and the two fluid delivery parts 2 communicate with the fluid chamber S2; in this way, the circulating fluid L2 has a larger flow range , and can flow smoothly and take away the heat energy, so that the heat energy is not easy to stay inside the main body 1. In addition, in other embodiments, the two flow transmission parts 2 can also be located at the same end of the main body 1, which is not limited in the present invention. The two flow parts 2 can be connected to a pump (not shown) and a heat dissipation fin (not shown) through a pipe (not shown), and the pump can drive the circulating fluid when it operates L2 circulates in the pipe and the fluid chamber S2.

The fluid-cooled heat dissipation module of the present invention may further include a plurality of sealing plugs 3, and the plurality of sealing plugs 3 can be combined and located in the main body 1, so that the phase change chamber S1 is in a sealed state, which can prevent the phase change liquid L1 from flowing out , and the fluid chamber S2 can only be communicated with the two flow transmission parts 2 .

Referring to Figures 3 and 5, the fluid-cooled heat dissipation module of the present invention may further include a heat-conducting seat 4, the heat-conducting seat 4 can be thermally connected to the bottom end P of the main body 1, and the heat-conducting seat 4 can correspond to The plurality of chambers U, the heat-conducting seat 4 can be used to thermally connect a heat source H; thus, the heat energy of the heat source H can be uniformly dispersed to the plurality of first laminated boards 11 and the plurality of The second laminated board 12 has the function of improving the heat dissipation effect.

Please refer to FIGS. 5 and 6. When the fluid cooling heat dissipation module of the present invention operates, the main body 1 can be thermally connected to the heat source H through the heat conducting seat 4, and the phase change liquid L1 in the phase change chamber S1 can be thermally connected. It can absorb heat energy from the liquid state and evaporate into a gas state, so that the heat energy at the heat source H is absorbed by the phase change liquid L1 in the phase change chamber S1; then, the circulating fluid L2 in the fluid chamber S2 can quickly absorb the phase change. The thermal energy in the change chamber S1 is changed, so that the phase change liquid L1 in the phase change chamber S1 can be rapidly condensed from a gaseous state to a liquid state to absorb heat, so that the circulating fluid L2 in the fluid chamber S2 can further improve the phase change chamber S1 The phase change liquid L1 in the heat sink can cool down, and then can take away the heat energy at the heat source H, which can achieve the effect of providing good heat dissipation efficiency.

Please refer to Figures 10 and 11, which are the second embodiment of the fluid-cooled heat dissipation module of the present invention. The laminated board 12 may have a plurality of second series connection holes 125 , and the plurality of first series connection holes 115 of the plurality of first laminated plates 11 may be connected with the plurality of second series connection holes 125 of the plurality of second laminated plates 12 . In addition, the main body 1 can also have a plurality of series pipes 15, the plurality of series pipes 15 pass through and combine the first series holes 115 of the plurality of first laminated plates 11 and the plurality of second laminated plates 12 The second series connection hole 125, the series connection pipe 15 may have a plurality of through holes 151, the plurality of through holes 151 of two of the series connection pipes 15 may communicate with the phase change chamber S1, and the plurality of series connection pipes 15 The other two through-holes 151 can communicate with the fluid chamber S2, and the through-holes 151 can be respectively arranged on the pipe wall of the series pipe 15 at intervals, so that the positions of the through-holes 151 on different series pipes 15 can be Differently, by adjusting several of the connected chambers U together to form the phase change chamber S1, and the other several connected chambers U together to form the fluid chamber S2.

To sum up, in the fluid cooling type heat dissipation module of the present invention, the phase change liquid in the phase change chamber can absorb heat energy from the liquid state and evaporate into a gaseous state, so that the heat generation can be absorbed by the phase change liquid in the phase change chamber The heat energy of the source, so that the phase change liquid can use the gas-liquid phase change mechanism to achieve heat transfer, and the circulating fluid in the fluid chamber can quickly absorb the heat energy in the phase change chamber, making the phase change chamber The phase change liquid in the chamber can be rapidly condensed from a gaseous state to a liquid state to absorb heat, so that the circulating fluid in the fluid chamber can further cool the phase change liquid in the phase change chamber, which can improve the effect of good heat dissipation.

Although the present invention has been disclosed by the above-mentioned preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various changes and modifications relative to the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the patent application attached hereto.

﹝this invention﹞ 1: Ontology 11: The first laminate 111: The first convex part 112: The first through hole 113: side through hole 114: Wavy Department 115: The first serial hole 12: Second laminate 121: Second convex part 122: Second through hole 123: side through hole 124: Wavy Department 125: Second serial hole 13: The first convex column 14: The second convex column 15: String Tube 151: Perforation 2: Transport Department 3: sealing plug 4: heat conduction seat H: heat source L1: Phase change fluid L2: circulating fluid P: Bottom S1: Phase Change Chamber S2: Fluid Chamber U: chamber

[Figure 1] An exploded perspective view of the first embodiment of the present invention. [Picture 2] An enlarged view of the partial structure shown in Fig. 1. [Figure 3] A combined partial cross-sectional perspective view of the first embodiment of the present invention. [Fig. 4] A combined perspective view of the first embodiment of the present invention. [Fig. 5] A cross-sectional view along line A-A in Fig. 4. [Picture 6] A cross-sectional view taken along the line B-B in Fig. 5. [FIG. 7] The first embodiment of the present invention has a partial perspective view of a first convex column and a second convex column. [Figure 8] The combined cross-sectional view shown in Figure 7. [Fig. 9] The first embodiment of the present invention has a combined cross-sectional view of the wave portion. [Fig. 10] An exploded perspective view of the second embodiment of the present invention. [FIG. 11] A combined cross-sectional view of the second embodiment of the present invention.

1: Ontology

11: The first laminate

111: The first convex part

112: The first through hole

113: side through hole

12: Second laminate

121: Second convex part

122: Second through hole

123: side through hole

2: Transport Department

3: sealing plug

4: heat conduction seat

H: heat source

L1: Phase change fluid

L2: circulating fluid

P: Bottom

S1: Phase Change Chamber

S2: Fluid Chamber

U: chamber

Claims (11)

A fluid-cooled heat dissipation module, comprising: a body, with several first laminates and several second laminates arranged in layers, a cavity between any two adjacent first laminates and second laminates, and the several cavities are in spaced communication , so that several of the connected chambers together form a phase change chamber, the phase change chamber is in a closed state and filled with a phase change liquid, and the other several connected chambers together form a fluid chamber; and The second fluid delivery part communicates with the fluid chamber. The fluid-cooled heat dissipation module of claim 1, wherein the two flow-conveying portions are arranged diagonally to connect to the body. The fluid-cooled heat dissipation module of claim 1, wherein each of the plurality of first laminated boards has a plurality of first convex portions, the first convex portion has a first through hole, and each of the plurality of second laminated boards has a plurality of first protrusions. There are several second protrusions, the second protrusions have a second through hole, any two adjacent first protrusions are connected with the second protrusions, and the first through holes are connected with the second through holes. Two of the first protruding parts located in the phase change chamber have at least one side through hole, and two of the second protruding parts located in the fluid chamber have at least one side through hole, so that the two protruding parts located in the fluid chamber have at least one side through hole. The second convex part connected with the first convex part of the hole has no side through hole, and the first convex part connected with the second convex part with the side through hole has no side through hole. The fluid-cooled heat dissipation module of claim 1, wherein the plurality of first laminate plates have a plurality of first series holes, the plurality of second laminate plates have a plurality of second series holes, and the body has a plurality of first series holes. a plurality of series pipes, the plurality of series pipes pass through and combine the first series holes of the plurality of first laminated plates and the second series holes of the plurality of second laminated plates, and the pipe walls of the plurality of series pipes have several a plurality of through holes, two of the plurality of series pipes are connected with the phase change chamber, and the other two holes of the plurality of series pipes are connected with the fluid chamber. The fluid-cooled heat dissipation module of claim 1, wherein the body has a plurality of first protrusions, the plurality of first protrusions are connected to the plurality of first laminates and are located in the phase change chamber. The fluid-cooled heat dissipation module of claim 5, wherein the body has a plurality of second protrusions, the second protrusions are connected to the second laminate plates and are located in the fluid chamber, the plurality of second protrusions The distribution density of the second protrusions is greater than the distribution density of the first protrusions. The fluid-cooled heat dissipation module of claim 1, wherein the plurality of first laminates have a plurality of corrugated portions, and the plurality of second laminates have a plurality of corrugated portions. The fluid-cooled heat dissipation module of claim 1 further comprises a plurality of sealing plugs, the plurality of sealing plugs are located in the main body, so that the phase change chamber is in a sealed state, and the fluid chamber is only connected with the two flow portions Connected. The fluid-cooled heat dissipation module of claim 1 further comprises a heat-conducting seat, and the heat-conducting seat is thermally connected to the bottom end of the body. The fluid-cooled heat dissipation module according to any one of claims 1 to 9, wherein the fluid chamber circulates a circulating fluid, and the circulating fluid and the phase change liquid are different liquids. The fluid cooling type heat dissipation module of claim 10, wherein the phase change liquid is a non-conductive liquid, and the circulating fluid is water.

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