Liquid absorption core for phase change heat dissipation element
A heat dissipation element and liquid-absorbing core technology, which is applied in the direction of electrical components, electrical equipment structural parts, cooling/ventilation/heating transformation, etc., can solve the problems of poor gas-liquid circulation, directional transmission of difficult liquid working fluid, and inconvenience in production and processing, etc. problems, to achieve high production efficiency, good directional transmission effect, convenient and simple production and processing
Pending Publication Date: 2022-03-11
宁波生久科技有限公司
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Problems solved by technology
[0003] In order to overcome the above-mentioned disadvantages, the purpose of the present invention is to provide the field with a liquid-absorbing core for phase-change heat dissipation elements, so that it can solve the inconvenience of production and processing of existing similar liquid-absorbing core products, and it is difficult for the processed finished product to be used in liquid state. The technical problem of poor gas-liquid circulation effect due to directional transmission of working fluid
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[0017] Now in conjunction with the accompanying drawings, the structure and use of the present invention will be further described. Such as figure 1 and figure 2 As shown, the body 1 of the liquid-absorbing core is made of ultra-thin metal foil material by bending and pressing. The thickness D of the ultra-thin metal foil material of the body is not greater than 1mm, and the folding gap G is not greater than 2mm. The body is folded according to a square tool to form a cube. Wick. Such as image 3 As shown, the body is folded according to a circular tooling so that the gap forms a liquid-absorbent core radially radial from the center. Such as Figure 4 As shown, the body is composed of modules, that is, multiple groups of bodies are combined to form a gas-liquid circulation circuit. Aligned through holes 101 are provided on the sides of the bends of the body. The body is in the shape of a cube, and the sides of the body are connected to each other in a cross shape. There ...
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The invention relates to a liquid absorption core for a phase change heat dissipation element, which is designed for solving the technical problems that the existing similar liquid absorption core product is inconvenient to produce and process, the processed finished product is difficult to directionally transmit a liquid working medium, and the gas-liquid circulation effect is poor. A body of the wick is made of ultrathin metal foil materials in a bending and pressing mode, and the wick is characterized in that the thickness D of the ultrathin metal foil materials of the body is not larger than 1 mm, and the folding gap G is not larger than 2 mm; the body is folded according to a circular tool to form the liquid absorption core enabling the gap to form a radial shape from the center to the radial direction, or the body is cubic, and aligned through holes are formed in the side faces of the bent position of the body respectively, so that the body is conveniently combined by modules. The liquid absorption core conducts directional transmission on a liquid working medium within the effective length, it is guaranteed that the liquid working medium is not limited to flow in the gap direction in a single mode, and a reasonable gas-liquid circulation loop is formed through the capillary action between the two flat plate gaps.
Description
technical field [0001] The invention relates to a liquid-absorbing core in a heat-dissipating element, which is a liquid-absorbing core for a phase-change heat-dissipating element. Background technique [0002] Heat dissipation components generally refer to devices that are attached to the surface of a certain part in equipment or machines for heat dissipation and heat conduction purposes, such as heat dissipation devices for cooling fans, heat dissipation devices for semiconductors, heat dissipation devices for high-power car lights or lighting lamps Wait. Among them, some are composed of substrates and heat sinks, and others are composed of casings and liquid-absorbing cores in the casings, and the casings are filled with working liquid; for example, the application number 202010847673.6 disclosed in the Chinese patent literature, the application publication date is 2020.10.16 , the name of the invention is "a large flat vapor chamber with a composite liquid-absorbing cor...
Claims
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IPC IPC(8): H05K7/20
CPCH05K7/20336
Inventor 姚春良郭峰
Owner 宁波生久科技有限公司