CN216752536U - Full aluminium temperature-uniforming plate structure with high filling quantity - Google Patents
Full aluminium temperature-uniforming plate structure with high filling quantity Download PDFInfo
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- CN216752536U CN216752536U CN202122777845.XU CN202122777845U CN216752536U CN 216752536 U CN216752536 U CN 216752536U CN 202122777845 U CN202122777845 U CN 202122777845U CN 216752536 U CN216752536 U CN 216752536U
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Abstract
The utility model relates to a high-filling-capacity all-aluminum temperature equalizing plate structure, which is designed for solving the technical problems that the existing like products are difficult to be used in the working condition that a heat source faces downwards, the cooling and heat dissipation effects are poor, the structure is poor, and the heat circulation effect of an inner cavity is poor. An inner cavity is arranged in the body of the temperature-equalizing plate, the bottom of the inner cavity is a boiling surface 3a, the top of the inner cavity is a condensing surface 3b, the inner cavity of the body is filled with a working medium, the bottom of the outer diameter of the body is provided with a raised heat source contact surface, and the top plane of the outer diameter of the body is a cold source contact surface; the key points are that the main body is internally provided with a working medium filled with more than eighty percent, the top of the working medium is provided with bubbles, and the top of the inner cavity of the main body is provided with a concave equidistant array structure or an equidistant array convex structure. The strengthening principle of the temperature-equalizing plate is to reduce the frequency of steam passing through a phase interface in the inner cavity of the temperature-equalizing plate, and the boiling surface at the primary phase interface of working medium steam in the inner cavity reaches a condensing surface, so that the heat resistance of the all-aluminum temperature plate is reduced by about 40% by the strengthening means.
Description
Technical Field
The utility model relates to a plate-type heat dissipation device, in particular to a high-filling-capacity all-aluminum temperature-equalizing plate structure.
Background
The heat dissipation device is used for quickly dissipating heat in equipment parts such as mechanical equipment, a metal cabinet, a circuit board and the like so as to ensure the normal work of the equipment parts, and comprises a heat dissipation fan, a heat dissipation plate, a cooling tower, a condensate pipe and the like. Some existing heat dissipation devices adopt a uniform temperature plate structure, such as the application No. 201610693601.4 disclosed in chinese patent documents, application publication No. 2016.12.07, entitled "a liquid cooling uniform temperature plate composite heat sink"; like the application number 201920693182.3 disclosed in the Chinese patent document, the granted notice date 2020.04.17, the utility model name of 'a snap-in ultra-high efficiency uniform temperature plate'; one side of the cavity of the product is provided with a working medium filling opening, so that the working medium can be conveniently filled. Meanwhile, compared with the traditional copper temperature-uniforming plate, the existing all-aluminum temperature-uniforming plate is lighter and more economical; however, the aluminum material is incompatible with water, and organic working media such as ethanol, R134a and the like are adopted. The organic working medium has the problem that almost all the organic working medium and aluminum material are super-hydrophilic (the contact angle is within 5 degrees), so that an attached liquid film always exists on the condensation side of the uniform temperature plate. This means that the gas generated by the bottom plate of the vapor chamber can contact the condensing side to be condensed through the interface of the two layers, which can drastically reduce the heat exchange efficiency of the vapor chamber.
In addition, the existing all-aluminum temperature-equalizing plate with general filling amount has the following problems in the working state: the heat source is a contact surface between the temperature-equalizing plate and a heat source, and heat with high heat flux density enters the temperature-equalizing plate from the contact surface; the second is the contact surface of the temperature-uniforming plate and the cold source; the heat with low heat flux density leaves the temperature-uniforming plate from the surface; thirdly, the inner cavity of the temperature-uniforming plate is filled with a certain amount of working medium, and evaporation and condensation are carried out in the inner cavity to ensure that the whole temperature-uniforming plate achieves the temperature equalization; fourthly, the working medium can not fall back to the corrugated surface formed by the boiling surface in time after being condensed on the condensing surface. Because the corrugated liquid level of the working medium on the condensing surface exists, the steam generated on the boiling surface must pass through a gas-liquid interface for two times (the steam enters a gas phase from a liquid phase on the boiling surface once, and the steam enters a liquid phase on the condensing surface from the gas phase once), and the phase change efficiency is greatly reduced. Therefore, the inner cavity structure and the working medium filling condition of the existing temperature-uniforming plate need to be further improved, so that the heat exchange, cooling and heat dissipation effects of the temperature-uniforming plate are improved.
Disclosure of Invention
In order to overcome the defects, the utility model aims to provide a high-filling-capacity all-aluminum temperature-equalizing plate structure for the field, so that the technical problems of low filling capacity of working media in inner cavities and poor heat exchange, cooling and radiating effects of the conventional like products are solved. The purpose is realized by the following technical scheme.
A high-filling-capacity all-aluminum temperature-equalizing plate structure is characterized in that an inner cavity is arranged in a temperature-equalizing plate body, the bottom of the inner cavity is a boiling surface 3a, the top of the inner cavity is a condensing surface 3b, a filled working medium is arranged in the inner cavity of the body, a raised heat source contact surface is arranged at the bottom of the outer diameter of the body, and a top plane of the outer diameter of the body is a cold source contact surface; the structural design key points are that the main body is internally provided with a working medium filled with more than eighty percent, and the top of the working medium is provided with bubbles. Therefore, the heat exchange is enhanced by the temperature equalizing plate through adjusting the high filling amount (more than eighty percent), and the enhancing principle of the temperature equalizing plate is to reduce the frequency of steam passing through a phase interface in the inner cavity of the temperature equalizing plate, so that the heat resistance of the all-aluminum temperature plate is reduced by about 40 percent by an enhancing means.
The inner chamber top of body is equipped with concave equidistance array structure, concave equidistance array structure is the wave.
The inner chamber top of body is equipped with the protruding structure of equidistance array, the protruding structure of equidistance array is the toper arch.
The body is cylindrical or rectangular, and the inner cavity of the body is correspondingly cylindrical or rectangular.
The utility model has simple and reasonable structural design, the working medium steam in the inner cavity only needs to reach a condensation surface through a boiling surface at a primary phase boundary, and the heat exchange, cooling and heat dissipation effects are good; it is suitable for being used as a temperature equalizing plate structure and further improving similar products.
Drawings
FIG. 1 is a schematic view of a half-section structure of an embodiment of the present invention.
FIG. 2 is a schematic diagram of a two-half section structure of an embodiment of the present invention.
FIG. 3 is a schematic view of a three-half section structure of an embodiment of the present invention.
Figure number and name: 1. the device comprises a body, 101, a heat source contact surface, 102, a cold source contact surface, 103, an inner cavity, 2, working media, 201, bubbles, 3a, a boiling surface, 3b and a condensing surface.
Detailed Description
The construction and use of the utility model will now be further described with reference to the accompanying drawings. As shown in fig. 1-3, 3a is a boiling surface of the inner cavity of the temperature-uniforming plate, and 3b is a condensing surface of the inner cavity of the temperature-uniforming plate; an inner cavity 103 is arranged in a body 1 of the temperature-uniforming plate, the bottom of the inner cavity is a boiling surface 3a, the top of the inner cavity is a condensing surface 3b, a filled working medium 2 is arranged in the inner cavity of the body, a raised heat source contact surface 101 is arranged at the bottom of the outer diameter of the body, and a cold source contact surface 102 is arranged at the top plane of the outer diameter of the body; the main body is filled with more than eighty percent of working medium, and the top of the working medium is provided with bubbles 201. The body is cylindrical or rectangular, the inner cavity of the body is correspondingly cylindrical or rectangular, a concave equidistant array structure is arranged at the top of the inner cavity of the body, and the concave equidistant array structure is wavy; or the top of the inner cavity of the body is provided with the equidistantly arrayed convex structures which are conical protrusions; the concave and convex structures are ribs.
The specific structure of the temperature-equalizing plate is as follows: as shown in the first embodiment shown in fig. 1, the working medium is filled into the inner cavity of the temperature-uniforming plate to a volume that is more than eighty percent of the volume of the cavity (the specific filling amount is adjusted according to the type of the working medium and the working condition); when the temperature-equalizing plate works, bubbles generated in the cavity are all liquid working media; at this time, bubbles generated on the boiling surface 3a float up to the condensing surface 3b by the mass force and condense on the condensing surface, so that the vapor only needs to reach the condensing surface 3b through the primary phase interface. As shown in the second embodiment of fig. 2, a concave array structure is prepared on the condensation surface 3b, so that the contact area of the steam and the condensation surface is increased, and meanwhile, the condensation surface 3b of the convex structure can provide the power for downward backflow of the condensed liquid film; in the third embodiment shown in fig. 3, an array of convex structures is formed on the condensation surface 3b, which has the effects of increasing the contact area and draining the water downward.
In conclusion, the temperature-uniforming plate aims at the problem that the heat resistance of a condensation surface is too large due to the fact that the aluminum material and the organic working medium are super-hydrophilic, and discloses an all-aluminum temperature-uniforming plate with high filling amount and a plurality of structures capable of strengthening internal heat exchange, and the all-aluminum temperature-uniforming plate with high filling amount and the heat exchange strengthening structure. The advantage of the uniform temperature plate is that the thermal resistance of the uniform temperature plate can be reduced by about 40% only by changing the filling amount in the uniform temperature plate and the surface structure of the condensing plate without using complex structures such as a capillary sintering core, a foam metal core and the like.
Claims (4)
1. A high-filling-capacity all-aluminum temperature-equalizing plate structure is characterized in that an inner cavity (103) is arranged in a body (1) of the temperature-equalizing plate, the bottom of the inner cavity is a boiling surface (3 a), the top of the inner cavity is a condensing surface (3 b), a filled working medium (2) is arranged in the inner cavity of the body, a raised heat source contact surface (101) is arranged at the bottom of the outer diameter of the body, and a cold source contact surface (102) is arranged on the top plane of the outer diameter of the body; the device is characterized in that a working medium (2) filled with more than eighty percent is arranged in the body (1), and bubbles (201) are arranged at the top of the working medium.
2. The structure of the high-charge-capacity all-aluminum temperature-equalizing plate according to claim 1, characterized in that the top of the inner cavity (103) of the body (1) is provided with a concave equidistant array structure, and the concave equidistant array structure is in a wave shape.
3. The structure of the high-charge-capacity all-aluminum temperature-equalizing plate according to claim 1, wherein the top of the inner cavity (103) of the body (1) is provided with an equidistant array of convex structures, and the equidistant array of convex structures are conical protrusions.
4. The structure of the high-charge-capacity all-aluminum temperature-equalizing plate according to claim 1, wherein the body (1) is cylindrical or rectangular, and the inner cavity (103) of the body is correspondingly cylindrical or rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122777845.XU CN216752536U (en) | 2021-11-11 | 2021-11-11 | Full aluminium temperature-uniforming plate structure with high filling quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122777845.XU CN216752536U (en) | 2021-11-11 | 2021-11-11 | Full aluminium temperature-uniforming plate structure with high filling quantity |
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| Publication Number | Publication Date |
|---|---|
| CN216752536U true CN216752536U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122777845.XU Active CN216752536U (en) | 2021-11-11 | 2021-11-11 | Full aluminium temperature-uniforming plate structure with high filling quantity |
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| CN (1) | CN216752536U (en) |
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2021
- 2021-11-11 CN CN202122777845.XU patent/CN216752536U/en active Active
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