Air-cooled heat pipe radiator for high-capacity SVG

A cold and heat pipe, large-capacity technology, used in cooling/ventilation/heating renovation, power electronics modification, electrical components, etc., can solve the problems of small total heat generation, low heat dissipation efficiency, large water leakage risk, etc. The effect of total thermal resistance

Pending Publication Date: 2017-12-12
STATE GRID HUNAN ELECTRIC POWER +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, large-capacity SVG generally adopts a water-cooled heat dissipation method with high heat dissipation efficiency, but the water-cooled method has a large risk of water leakage due to the large number of water inlet and outlet pipe joints, and once water leaks, it will cause equipment insulation failure and low reliability.
The air-cooling method has no risk of water leakage, but the existing air-cooling method is currently only suitable for small-capacity SVGs with low heat generation density and small total heat generation due to low heat dissipation efficiency.

Method used

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  • Air-cooled heat pipe radiator for high-capacity SVG
  • Air-cooled heat pipe radiator for high-capacity SVG
  • Air-cooled heat pipe radiator for high-capacity SVG

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as figure 1 and figure 2 As shown, the first embodiment of the air-cooled heat pipe radiator for large-capacity SVG of the present invention includes a substrate 1 and a fin group 2 arranged on the front of the substrate 1, the back of the substrate 1 is connected to the heat-dissipated part 3, and the substrate 1 There are multiple rows of inlay grooves 11 arranged in parallel on the front side, each inlay groove 11 is embedded with a comb-shaped heat pipe 4, the bottom of each comb-shaped heat pipe 4 is in contact with the heat-dissipated part 3, and the top of each comb-shaped heat pipe 4 is inserted into the fin group 2. In this structure, the embedded section of the comb-shaped heat pipe 4 is equivalent to the evaporating section in the traditional heat pipe. When the heat is generated by the heat sink 3, most of the heat is directly transferred to the evaporating section, and the working fluid in the evaporating section is heated. Instantaneous vaporizatio...

Embodiment 2

[0035] Such as image 3 and Figure 4 As shown, the present invention is used in the second embodiment of the air-cooled heat pipe radiator for large-capacity SVG. The installation position of the heat sink 3. The length of the transverse main pipe 41 is greater than the width of the two heat sinks 3 to ensure that the temperature field distribution in the transverse direction is as uniform as possible.

[0036] In other embodiments, the number of heat-dissipated parts 3 can be selected according to actual needs, and it is necessary to ensure that the length of the transverse main pipe 41 is greater than the width of the total heat-dissipated parts 3 .

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PUM

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Abstract

The invention discloses an air-cooled heat pipe radiator for high-capacity SVG. The air-cooled heat pipe radiator for the high-capacity SVG comprises a substrate and a fin group which is arranged on the front surface of the substrate; the back surface of the substrate is connected with a radiator piece; a plurality of embedding grooves which are formed in parallel are formed in the front surface of the substrate; a comb-shaped heat pipe is embedded into each embedding groove; the bottom of each comb-shaped heat pipe is in contact with the radiated piece; the top end of each comb-shaped heat pipe is inserted into the fin group. The radiator has the advantages of being simple in structure, high in reliability, and capable of reducing total thermal resistance remarkably.

Description

technical field [0001] The invention mainly relates to the technical field of heat dissipation of power electronic devices, in particular to an air-cooled heat pipe radiator for large-capacity SVGs. Background technique [0002] With the rapid development of new energy power generation and UHV transmission technology, the demand for large-capacity dynamic reactive power compensation equipment in the power grid is becoming increasingly urgent. Among all kinds of equipment capable of quickly providing dynamic reactive power compensation, the static synchronous generator (SVG) has become the preferred solution due to its advantages of fast dynamic response, small grid-connected harmonics, small footprint, and simple maintenance. [0003] Due to the high rated voltage and high rated current of large-capacity SVG, its total heat generation is large and its heat density is high, so the heat dissipation efficiency of the radiator is very high. At present, large-capacity SVGs gener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20
CPCH05K7/209H05K7/20909H05K7/20936
Inventor 陆佳政黄清军李波谭艳军朱思国朱远
Owner STATE GRID HUNAN ELECTRIC POWER
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