CN220568698U - Graphene film heat dissipation test system - Google Patents
Graphene film heat dissipation test system Download PDFInfo
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- CN220568698U CN220568698U CN202322147548.6U CN202322147548U CN220568698U CN 220568698 U CN220568698 U CN 220568698U CN 202322147548 U CN202322147548 U CN 202322147548U CN 220568698 U CN220568698 U CN 220568698U
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 36
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 28
- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000001179 sorption measurement Methods 0.000 claims abstract description 22
- 230000005855 radiation Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 9
- 239000011229 interlayer Substances 0.000 claims description 8
- 229910001120 nichrome Inorganic materials 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 229910052582 BN Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 230000004308 accommodation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The application discloses graphene film heat dissipation test system includes: the box body comprises a bottom wall and a side wall, wherein the bottom wall and the side wall are enclosed to form a containing cavity, and an opening communicated with the containing cavity is formed at the top of the box body; the high-temperature heating platform is arranged in the box body, above the bottom wall and in the middle of the bottom wall; the vacuum adsorption device is arranged above the high-temperature heating platform; a temperature sensor for measuring the temperature of the vacuum adsorption device; and the temperature adjusting component is used for adjusting the temperature of the accommodating cavity, and the detecting component is arranged right above the vacuum adsorption device and used for detecting the heat radiation performance of the target to be detected. The application can provide stable ambient temperature and heating temperature for the heat dissipation test process of the graphene film, can avoid the influence of interface action on the test, and can detect the heat conductivity and the heat radiation capacity of the graphene film simultaneously so as to provide unified standards for the heat dissipation test of the graphene film, so that the measurement result is accurate, and the reliability of the product is improved.
Description
Technical Field
The utility model relates to the technical field of graphene heat conduction film manufacturing, in particular to a graphene film heat dissipation testing system.
Background
The graphene heat conducting film is a heat conducting material with excellent performance, is widely used as a heat radiating component in the fields of mobile phones, tablet computers, military industry, aerospace and the like, has better performance than a heat conducting film prepared by processing natural graphite, and is prepared by processing polyimide film (PI film) for the artificially synthesized graphene heat conducting film through procedures of carbonization, graphitization, calendaring and the like.
The heat dissipation effect of the graphene heat conduction film is related to the heat conductivity, the heat radiation capacity, the ambient temperature and the interface effect of the graphene heat conduction film, however, the current test of the heat dissipation effect of the graphene heat conduction film is only judged through the heat conductivity of the film, the influence of the heat radiation capacity, the ambient temperature and the interface effect of the graphene heat conduction film cannot be considered, no special heat dissipation effect test equipment and method are provided, standard detection means and evaluation methods cannot be provided for optimizing the graphene heat dissipation effect, and the reliability of the final product is not high, so that the use requirement cannot be met.
Disclosure of Invention
The utility model aims to provide a graphene film heat dissipation test system, which is used for solving the problems that in the prior art, the heat dissipation performance of a graphene heat conduction film is judged by the heat conductivity of the film, the unified standard is lacking, the reproducibility of a test result is poor, and the reliability of a final product is low.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a graphene film heat dissipation test system, comprising:
the box body comprises a bottom wall and a side wall, wherein the bottom wall and the side wall are enclosed to form a containing cavity, and an opening communicated with the containing cavity is formed at the top of the box body;
the high-temperature heating platform is arranged in the box body, and is arranged above the bottom wall and positioned in the middle of the bottom wall;
the vacuum adsorption device is used for adsorbing a target to be detected and is arranged above the high-temperature heating platform;
a temperature sensor for measuring the temperature of the vacuum adsorption device;
a temperature regulating assembly for regulating the temperature of the accommodating chamber; and
and the detection component is arranged right above the vacuum adsorption device and is used for detecting the heat radiation performance of the target to be detected.
Further, the temperature of the accommodating cavity is in the range of-10-50 ℃.
Further, the box body is provided with an interlayer cavity arranged in the bottom wall and the side wall, and an inlet and an outlet communicated with the interlayer cavity;
the temperature adjusting assembly comprises a water storage tank, a water pump, a refrigerator, a heater, a liquid inlet pipeline and a liquid outlet pipeline, wherein the output end of the liquid inlet pipeline is communicated with the inlet, the first input end of the liquid inlet pipeline is communicated with the refrigerator, the second input end of the liquid inlet pipeline is communicated with the heater, the refrigerator and the heater are respectively communicated with the output end of the water storage tank through the water pump, and the input end of the water storage tank is communicated with the outlet through the liquid outlet pipeline.
Further, the vacuum adsorption device comprises a groove body arranged above the high-temperature heating platform and a top cover arranged above the groove body, boron nitride particles are filled in the groove body, the groove body is communicated with the vacuum generation device, and a plurality of suction holes are formed in the top cover.
Further, the tank body and the top cover are both made of steel.
Further, the plurality of suction holes are arranged in the middle of the top cover in a rectangular array.
Further, the temperature sensor is located in the tank body and is arranged at the bottom of the top cover.
Further, the temperature sensor is a thermocouple sensor.
Further, the high-temperature heating platform comprises a ceramic alumina substrate and nichrome resistance wires arranged on the top surface of the ceramic alumina substrate, and the nichrome resistance wires are spirally distributed.
Further, the detection assembly comprises a thermal infrared imager and a thermal emissivity tester, wherein the distance between the thermal infrared imager and the thermal emissivity tester and the top surface of the vacuum adsorption device is 5cm.
Due to the application of the technical scheme, the application has the beneficial effects compared with the prior art that:
the application provides a graphene film heat dissipation test system is through setting up high temperature heating platform, vacuum adsorption equipment, temperature sensor, temperature regulating assembly and detection component, can provide stable ambient temperature and heating temperature for the heat dissipation test process of graphene film, can avoid the interface effect to the influence of test, and can detect the thermal conductivity and the heat radiation ability of graphene film simultaneously to for graphene film heat dissipation test provides unified standard, makes measuring result accurate, improves the reliability of product.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic cross-sectional structural diagram of a graphene film heat dissipation test system according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of a top cover according to an embodiment of the present utility model.
Reference numerals illustrate:
1-a box body; 11-a receiving cavity; 12-a bottom wall; 13-sidewalls; 14-interlayer cavity; 15-import; 16-outlet; 17-opening; 2-a high-temperature heating platform; a 21-ceramic alumina substrate; 22-nichrome resistance wire; 3-a vacuum adsorption device; 31-a groove body; 32-top cover; 33-sucking holes; 34-an air pumping hole; 4-a temperature sensor; 5-a detection assembly; 51-thermal emissivity tester; 52-thermal infrared imager; 6-a bolt; 7-boron nitride particles; 8-a threaded hole; 9-a thread seat.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 and 2, a graphene film heat dissipation testing system according to a preferred embodiment of the present utility model includes a case 1, a high temperature heating platform 2 and a vacuum adsorption device 3 disposed in the case 1, a temperature sensor 4, a temperature adjustment assembly (not shown), and a detection assembly 5.
Specifically, the case 1 includes a bottom wall 12 and a side wall 13, the bottom wall 12 and the side wall 13 enclose a receiving chamber 11, and an opening 17 communicating with the receiving chamber 11 is formed at the top of the case 1. In this embodiment, the case 1 and the accommodating cavity 11 are both in a square structure, the length, width and height of the case 1 are all 20cm, and the length, width and height of the accommodating cavity 11 are all 15cm. Indeed, in other embodiments, the case 1 and the housing chamber 11 may be provided in other configurations and sizes, which are not particularly limited in this application.
The temperature adjusting component is used for adjusting the temperature of the accommodating cavity 11, and the temperature range of the accommodating cavity 11 is-10-50 ℃. In this embodiment, the temperature adjusting component is a cold and hot circulating water temperature adjusting component. The tank 1 has an interlayer cavity 14 provided in the bottom wall 12 and the side wall 13, and an inlet 15 and an outlet 16 communicating with the interlayer cavity 14. Specifically, the inlet 15 is provided at one side of the bottom wall 12, and the outlet 16 is provided at the outer upper end of the side wall 13.
The temperature adjusting component comprises a water storage tank, a water pump, a refrigerator, a heater, a liquid inlet pipeline and a liquid outlet pipeline, wherein the output end of the liquid inlet pipeline is communicated with the inlet 15, the first input end of the liquid inlet pipeline is communicated with the refrigerator, the second input end of the liquid inlet pipeline is communicated with the heater, the refrigerator and the heater are respectively communicated with the output end of the water storage tank through the water pump, and the input end of the water storage tank is communicated with the outlet 16 through the liquid outlet pipeline. The temperature of the accommodating chamber 11 is adjusted to a preset temperature, which may be a specific threshold value or a temperature range, by circulating a liquid of a preset temperature in the interlayer cavity 14.
The high-temperature heating platform 2 is disposed above the bottom wall 12 and located in the middle of the bottom wall 12, and is used for providing a heat source for an object to be measured (not shown). It should be noted that the target to be measured is a graphene film. Specifically, the high-temperature heating platform 2 comprises a ceramic alumina substrate 21 and nichrome resistance wires 22 arranged on the top surface of the ceramic alumina substrate 21, wherein the nichrome resistance wires 22 are spirally distributed. In this embodiment, the interval between two adjacent circles of nichrome resistance wires 22 is 2mm, and the heating temperature range of the high temperature heating platform 2 is: the temperature is between room temperature and 250 ℃, and the temperature regulation precision is 0.1 ℃.
The vacuum adsorption device 3 is arranged above the high-temperature heating platform 2 and is used for adsorbing a target to be detected, so that the graphene film can be clung to the high-temperature heating platform 2, and the thermal conduction error of an interface gap is reduced. Specifically, the vacuum adsorption device 3 includes a tank body 31 disposed above the high-temperature heating platform 2 and a top cover 32 covering the tank body 31, the tank body 31 is filled with boron nitride particles 7, the tank body 31 is communicated with a vacuum generation device (not shown), and a plurality of suction holes 33 are formed in the top cover 32. In this embodiment, four corners of the top cover 32 and four corners of the groove 31 are fixed by bolts 6, threaded holes 8 matched with the bolts 6 are formed in the four corners of the top cover 32, and threaded seats 9 butted with the bolts 6 are formed in the four corners of the groove 31.
It should be noted that, the tank 31 is provided with an air extraction hole 34 connected to a vacuum generating device, and the vacuum generating device is of a conventional structure and will not be described herein. In order to ensure uniform heating, the cross section of the vacuum adsorption device 3 is the same as the cross section of the high-temperature heating platform 2 in size.
In this embodiment, the diameter of the boron nitride particles 7 is 5 to 10 μm, which is not particularly limited in this application. The tank 31 and the top cover 32 are both made of steel. The cross section of the groove body 31 is in a square structure, the length and the width of the groove body 31 are respectively 10cm, and the height is 1cm. Indeed, in other embodiments, the size and shape of the slot 31 may be adjusted according to design requirements, and is not particularly limited herein.
A plurality of suction holes 33 are arranged in a rectangular array in the middle of the top cover 32. Specifically, 25 suction holes 33 are provided in a 5×5 rectangular array within a range of 5cm×5cm in the middle of the top cover 32, each suction hole 33 has a diameter of 20 to 50 μm, and the center-to-center spacing of adjacent suction holes 33 is 1mm. Indeed, in other embodiments, the number, diameter, and center-to-center spacing of the suction holes 33 may be adjusted in accordance with design requirements, and are not particularly limited herein.
The temperature sensor 4 is located in the tank 31 and is disposed at the bottom of the top cover 32 for measuring the temperature of the vacuum adsorption device 3. In this embodiment, the temperature sensor 4 is a thermocouple sensor of model WZP-pt 100, which is a prior art and will not be described here in detail.
The detection assembly 5 is arranged right above the vacuum adsorption device 3 and is used for detecting the heat radiation performance of the target to be detected. Specifically, the detection assembly 5 includes a thermal infrared imager 52 and a thermal emissivity tester 51, and the distances between the thermal infrared imager 52, the thermal emissivity tester 51 and the top surface of the vacuum adsorption device 3 are all 5cm. In this embodiment, the thermal infrared imager 52 is FLIR ETS320 model, the thermal emissivity tester 51 is JT2020 model, which is a prior art, and will not be described here.
Finally, it should be noted that the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, and any modifications, equivalents, improvements or changes thereof may be made without departing from the spirit and principle of the present utility model.
Claims (10)
1. A graphene film heat dissipation test system is characterized by comprising:
the box body comprises a bottom wall and a side wall, wherein the bottom wall and the side wall are enclosed to form a containing cavity, and an opening communicated with the containing cavity is formed at the top of the box body;
the high-temperature heating platform is arranged in the box body, and is arranged above the bottom wall and positioned in the middle of the bottom wall;
the vacuum adsorption device is used for adsorbing a target to be detected and is arranged above the high-temperature heating platform;
a temperature sensor for measuring the temperature of the vacuum adsorption device;
a temperature adjusting component for adjusting the temperature of the accommodating cavity, and
and the detection component is arranged right above the vacuum adsorption device and is used for detecting the heat radiation performance of the target to be detected.
2. The graphene film heat dissipation test system according to claim 1, wherein the temperature of the accommodation chamber is in the range of-10-50 ℃.
3. The graphene film heat dissipation test system according to claim 2, wherein the case has an interlayer cavity disposed within the bottom wall and the side wall and an inlet and an outlet in communication with the interlayer cavity;
the temperature adjusting assembly comprises a water storage tank, a water pump, a refrigerator, a heater, a liquid inlet pipeline and a liquid outlet pipeline, wherein the output end of the liquid inlet pipeline is communicated with the inlet, the first input end of the liquid inlet pipeline is communicated with the refrigerator, the second input end of the liquid inlet pipeline is communicated with the heater, the refrigerator and the heater are respectively communicated with the output end of the water storage tank through the water pump, and the input end of the water storage tank is communicated with the outlet through the liquid outlet pipeline.
4. The graphene film heat dissipation testing system according to claim 1, wherein the vacuum adsorption device comprises a tank body arranged above the high-temperature heating platform and a top cover covered above the tank body, boron nitride particles are filled in the tank body, the tank body is communicated with the vacuum generation device, and a plurality of suction holes are formed in the top cover.
5. The graphene film heat dissipation test system according to claim 4, wherein the tank and the top cover are both made of steel.
6. The graphene film heat dissipation test system according to claim 4, wherein the plurality of suction holes are arranged in a rectangular array in the middle of the top cover.
7. The graphene film heat dissipation test system according to claim 4, wherein the temperature sensor is located within the tank and disposed at the bottom of the top cover.
8. The graphene film heat dissipation test system according to claim 7, wherein the temperature sensor is a thermocouple sensor.
9. The graphene film heat dissipation test system according to claim 1, wherein the high-temperature heating platform comprises a ceramic alumina substrate and nichrome resistance wires arranged on the top surface of the ceramic alumina substrate, and the nichrome resistance wires are spirally distributed.
10. The graphene film heat dissipation test system according to claim 1, wherein the detection assembly comprises a thermal infrared imager and a thermal emissivity tester, and the distances between the thermal infrared imager, the thermal emissivity tester and the top surface of the vacuum adsorption device are all 5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322147548.6U CN220568698U (en) | 2023-08-09 | 2023-08-09 | Graphene film heat dissipation test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322147548.6U CN220568698U (en) | 2023-08-09 | 2023-08-09 | Graphene film heat dissipation test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220568698U true CN220568698U (en) | 2024-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322147548.6U Active CN220568698U (en) | 2023-08-09 | 2023-08-09 | Graphene film heat dissipation test system |
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| Country | Link |
|---|---|
| CN (1) | CN220568698U (en) |
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2023
- 2023-08-09 CN CN202322147548.6U patent/CN220568698U/en active Active
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