CN221280034U - High-efficiency phase-change energy storage plate - Google Patents
High-efficiency phase-change energy storage plate Download PDFInfo
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- CN221280034U CN221280034U CN202323246680.9U CN202323246680U CN221280034U CN 221280034 U CN221280034 U CN 221280034U CN 202323246680 U CN202323246680 U CN 202323246680U CN 221280034 U CN221280034 U CN 221280034U
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- phase change
- heat
- plate
- change material
- metal matrix
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- 238000004146 energy storage Methods 0.000 title claims abstract description 32
- 239000012782 phase change material Substances 0.000 claims abstract description 65
- 229910052751 metal Inorganic materials 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 46
- 239000011159 matrix material Substances 0.000 claims abstract description 35
- 238000010521 absorption reaction Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims 1
- 239000010439 graphite Substances 0.000 claims 1
- 238000005338 heat storage Methods 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model relates to a high-efficiency phase-change energy storage plate, which comprises a heat conduction structure, a first metal matrix and a second metal matrix, wherein two ends or one end of the top surface of the first metal matrix are provided with first bulges of a hollow structure, two ends or one end of the bottom surface of the second metal matrix are provided with second bulges of a hollow structure, the bottom surface of the first metal matrix is downwards extended to form a first extension part, the top surface of the second metal matrix is upwards extended to form a second extension part, the first extension part and the second extension part form a sealed hollow area, and the hollow area is used for installing the heat conduction structure; the heat conduction structure is internally filled with a first phase change material, the first protrusions and the second protrusions are internally filled with a second phase change material, the heat absorption capacity of the first phase change material is larger than that of the second phase change material, the heat conductivity of the first phase change material is smaller than that of the second phase change material, and the heat transfer efficiency and the heat storage capacity of the heat conduction structure are high.
Description
Technical Field
The utility model relates to the technical field of phase-change thermal storage structures, in particular to a high-efficiency phase-change energy storage plate.
Background
The phase-change energy storage plate stores or releases heat by utilizing the phase-change energy storage characteristic of the material, thereby realizing certain functions of adjusting and controlling the temperature of the product in a limited working time, being mainly applied to occasions without heat dissipation conditions or with insufficient heat dissipation conditions, and being structurally characterized in that the phase-change material is embedded in the metal matrix.
The phase change material widely used in the prior art has the characteristics of higher phase change latent heat and poorer heat conducting property. As the power of electronic components is larger and larger, the generated heat is more and more concentrated, the temperature difference between the surface temperature of the components and the phase change material with irregular appearance placed in the energy storage plate is larger and larger, and the phase change material far away from the components does not exert the phase change heat absorption function in the limited working time of the components, so that the phase change energy storage plate with the existing structure cannot store the generated heat quickly in time, and the temperature of the components exceeds the normal working range.
For the phase-change energy storage plate, if the heat transfer efficiency is low, the temperature difference between the two is larger and larger, namely, the temperature difference is larger due to the low heat transfer efficiency, so that the phase-change energy storage plate cannot timely absorb heat generated by components, and the conditions that the components are too high in temperature and die down are easily caused.
Disclosure of utility model
In view of the above, the utility model provides a high-efficiency phase-change energy storage plate, which solves the technical problems of poor thermal conductivity and low energy storage efficiency of the existing product.
The high-efficiency phase-change energy storage plate is suitable for heat exchange when electronic components are used as heat sources, and comprises a heat conduction structure made of high heat conduction materials, a first metal matrix and a second metal matrix, wherein the two ends or one end of the top surface of the first metal matrix are provided with first bulges with hollow structures, the two ends or one end of the bottom surface of the second metal matrix are provided with second bulges with hollow structures,
The bottom surface of the first metal matrix is provided with a first extending part in a downward extending mode, the top surface of the second metal matrix is provided with a second extending part in an upward extending mode, the first extending part and the second extending part form a sealed hollow area, and the hollow area is used for installing the heat conducting structure;
The heat conduction structure is internally filled with a first phase change material, the first protrusions and the second protrusions are internally filled with a second phase change material, the heat absorption capacity of the first phase change material is larger than that of the second phase change material, and the heat conductivity of the first phase change material is smaller than that of the second phase change material.
Preferably, at least one boss is arranged in the central region of the first metal base body and/or the second metal base body, and the boss exchanges heat with the heat source in a contact mode.
Preferably, the heat conducting structure comprises a first flat plate and a second flat plate, the areas of the first flat plate and the second flat plate are matched with the area of the hollow area, wherein,
The first flat plate and the second flat plate are fixedly connected through a plurality of cylinders, and the first phase change material is filled in a region formed between the first flat plate and the second flat plate.
Preferably, a portion of the cylinder at a position corresponding to the boss extends out of the first plate and/or the second plate and is embedded into the boss, so as to accelerate the transfer rate of heat from the heat source to the heat conducting structure.
Advantageous effects
Through setting up heat conduction structure to it has first phase change material to fill in heat conduction structure, and set up second phase change material on two metal substrates, store the heat source heat through the mode maximize of two ways, generally, first phase change material is nearer to the heat source, its heat absorption is big, but the heat transfer rate is slow, second phase change material is its heat absorption is little, but the heat transfer rate is fast (generally far away from the heat source), store energy to the heat source heat with the combination mode that gives the fastest compromise maximum heat absorption, its characteristics are that heat transfer efficiency is high, the heat storage is high, be applicable to the occasion that heat source power is big and concentrate, operating time is short, and, set up hollow area and ensure the leakproofness, the phase change material leakage risk is low, its long service life.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of the overall structure of a high-efficiency phase-change energy storage plate;
FIG. 2 is a front cross-sectional view of a high efficiency phase change energy storage plate;
FIG. 3 is a front half cross-sectional view of a high efficiency phase change energy storage plate;
FIG. 4 is a first directional perspective view of a thermally conductive structure;
FIG. 5 is a second directional perspective view of the thermally conductive structure;
FIG. 6 is a schematic diagram of an efficient phase change energy storage plate with a hollow region disposed therein, wherein:
1. A first metal matrix; 11. a first protrusion; 2. a second metal matrix; 21. a second protrusion; 31. a first phase change material; 32. a first plate; 33. a second plate; 34. a cylinder; 4. a second phase change material; 5. a boss; 6. hollow areas.
Detailed Description
Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
Other advantages and effects of the present disclosure will become readily apparent to those skilled in the art from the following disclosure, which describes embodiments of the present disclosure by way of specific examples. It will be apparent that the described embodiments are merely some, but not all embodiments of the present disclosure. The disclosure may be embodied or practiced in other different specific embodiments, and details within the subject specification may be modified or changed from various points of view and applications without departing from the spirit of the disclosure. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.
It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concepts of the disclosure by way of illustration, and only the components related to the disclosure are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that aspects may be practiced without these specific details.
Referring to the efficient phase change energy storage plates shown in fig. 1 to 6, the phase change energy storage plates are suitable for heat exchange when electronic components, such as chips, are used as heat sources. As shown in fig. 1, the heat-conducting structure is made of a high heat-conducting material, a first metal matrix 1 and a second metal matrix 2, wherein the materials of the first metal matrix 1 and the second metal matrix 2 are made of aluminum alloy or pure copper (preferably, a plate-shaped structure design with a groove in the central area is adopted, and the shape is matched with the space of a butt joint product). As shown in fig. 2 or fig. 3, the first metal base 1 is provided at both ends or one end thereof with a first protrusion 11 of a hollow structure, the second metal base 2 is provided at both ends or one end thereof with a second protrusion 21 of a hollow structure, the first protrusion 11 and the second protrusion 21 are preferably connected in an integrated manner, wherein,
Taking the placement direction of fig. 1 as a reference, the bottom surface of the first metal matrix 1 extends downwards to form a first protruding part, the top surface of the second metal matrix 2 extends upwards to form a second protruding part, the first protruding part and the second protruding part form a sealed hollow area 6 (see fig. 6), the hollow area 6 is used for installing a heat conducting structure, and a preferred connection mode is that the first protruding part of the first metal matrix 1 and the second protruding part of the second metal matrix 2 are connected in a sealing welding mode;
As shown in fig. 2, the heat conducting structure is filled with a first phase change material 31, the first protrusion 11 and the second protrusion 21 are filled with a second phase change material 4, the heat absorption amount of the first phase change material 31 is larger than that of the second phase change material 4, and the heat conductivity of the first phase change material 31 is smaller than that of the second phase change material 4. The first protrusion 11 and the second protrusion 21 are arranged in a trapezoid structure, so that the butt joint or the installation with the actual product is facilitated.
It is critical whether the heat storage capacity is sufficient and whether the heat transfer rate is such that the heat is rapidly conducted to the phase change material. The temperature difference between the surface temperature of the components and the phase change material in the energy storage plate is larger because of the poor heat conduction property of the phase change material which is widely used at present. As the heat generated by the high-power electronic components is concentrated, the temperature difference between the surface temperature of the components and the phase change material in the energy storage plate is increased, and the local phase change material cannot function within the limited working time, so that the temperature of the components exceeds the normal working range. The utility model adopts the high heat conduction material to quickly diffuse concentrated heat to the first phase change material 31 and the second phase change material 4 in the whole energy storage plate for storage, effectively reduces the temperature difference between the surface of the component and the phase change material, realizes quick storage of the heat, simultaneously sets the first phase change material 31 and the second phase change material 4 with different parameters in different areas, ensures quick heat absorption, and simultaneously can meet the heat dissipation requirement of the component, and adopts the first phase change material 31 (high latent heat phase change material) at a position close to a heat source, ensures sufficient heat storage and adopts the second phase change material 4 (high heat conduction phase change material) at a position far from the heat source.
As a specific embodiment provided in the present disclosure, in order to facilitate the installation of electronic components, at least one boss 5 is disposed in a central region of the first metal substrate 1 and/or the second metal substrate 2, and the boss 5 exchanges heat with a heat source in a contact manner, so that the heat received by the boss 5 is transferred to the first phase change material 31 and the second phase change material 4 in a fastest manner.
Further, as shown in fig. 4, the heat conducting structure includes a first plate 32 and a second plate 33, and the areas of the first plate 32 and the second plate 33 are adapted to the area of the hollow area, wherein,
The first plate 32 and the second plate 33 are fixedly connected by a plurality of cylinders of heat conductive metal, and the region formed between the first plate 32 and the second plate 33 is filled with the first phase change material 31.
Further, in order to accelerate the heat transfer of the heat source, as shown in fig. 5, the cylinder 34 at the position corresponding to the boss 5 partially extends out of the first plate 32 and/or the second plate 33 and is embedded into the boss 5, so as to accelerate the heat transfer rate of the heat source to the heat conducting structure, and the first plate 32, the second plate 33 and the cylinder 34 are made of graphite-type high heat conducting materials or metal-type high heat conducting materials, so as to improve the heat transfer efficiency.
As a specific embodiment provided in the present application, the second phase change material 4 is a high heat conduction phase change material, the first phase change material 31 is a high latent heat phase change material, preferably, the second phase change material 4 is a carbon-based composite phase change material, preferably, the first phase change material 31 is paraffin. The second protrusions 21 and the first protrusions 11 are each provided in a top-opened structure, and are each provided with a cover plate (not shown) made of a heat conductive metal, so that replacement of materials is facilitated.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the disclosure are intended to be covered by the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (10)
1. The efficient phase change energy storage plate is suitable for heat exchange when electronic components are used as a heat source, and is characterized by comprising a heat conduction structure made of high heat conduction materials, a first metal matrix and a second metal matrix, wherein the two ends or one end of the top surface of the first metal matrix are provided with first bulges with hollow structures, the two ends or one end of the bottom surface of the second metal matrix are provided with second bulges with hollow structures,
The bottom surface of the first metal matrix is provided with a first extending part in a downward extending mode, the top surface of the second metal matrix is provided with a second extending part in an upward extending mode, the first extending part and the second extending part form a sealed hollow area, and the hollow area is used for installing the heat conducting structure;
The heat conduction structure is internally filled with a first phase change material, the first protrusions and the second protrusions are internally filled with a second phase change material, the heat absorption capacity of the first phase change material is larger than that of the second phase change material, and the heat conductivity of the first phase change material is smaller than that of the second phase change material.
2. The efficient phase change energy storage plate of claim 1, wherein the central region of the first metal matrix and/or the second metal matrix is provided with at least one boss that exchanges heat with a heat source in a contact manner.
3. The efficient phase-change energy storage plate of claim 2, wherein the thermally conductive structure comprises a first plate and a second plate, the first plate and the second plate each having an area that is compatible with an area of the hollow region, wherein,
The first flat plate and the second flat plate are fixedly connected through a plurality of cylinders, and the first phase change material is filled in a region formed between the first flat plate and the second flat plate.
4. A high efficiency phase change energy storage plate as claimed in claim 3, wherein a portion of the cylinder at a location corresponding to the boss extends beyond the first plate and/or the second plate and is embedded within the boss to increase the rate of heat transfer from the heat source to the thermally conductive structure.
5. The efficient phase change energy storage plate of claim 4, wherein the first plate, the second plate, and the cylinder are each made of a graphite-based high thermal conductivity material or a metal-based high thermal conductivity material.
6. The efficient phase-change energy storage plate of claim 1, wherein the first protrusion and the second protrusion are arranged in a trapezoidal configuration.
7. The efficient phase change energy storage plate of claim 1, wherein the second phase change material is a high thermal conductivity phase change material and the first phase change material is a high latent heat phase change material.
8. The efficient phase change energy storage plate of claim 1, wherein the first metal matrix and the second metal matrix are made of aluminum alloy or pure copper.
9. The efficient phase-change energy storage plate of claim 1, wherein the second protrusions and the first protrusions are each provided in a top-opening structure, and are each provided with a cover plate made of a heat-conductive metal.
10. The efficient phase change energy storage plate of claim 9, wherein the first metal matrix and the second metal matrix are connected by welding.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221280034U true CN221280034U (en) | 2024-07-05 |
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