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Water-cooling resistance device for frequency conversion system

A technology of water-cooled resistance and frequency conversion system, which is applied in the direction of resistors, resistor parts, helical coil/helical disk resistance elements, etc., which can solve the problems of heat cannot be dissipated quickly, complex and cumbersome assembly, and a large number of parts, so as to increase maintenance Convenience, good cooling effect, small size effect

Inactive Publication Date: 2016-07-06
HUZHOU CRRC SPECIAL ELECTRICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional overvoltage chopper energy absorbing resistor devices adopt natural cooling or forced air cooling, large volume, heavy weight, large space occupation, large number of parts, complex and cumbersome assembly, low reliability, and heat cannot be quickly dissipated in a closed space

Method used

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  • Water-cooling resistance device for frequency conversion system
  • Water-cooling resistance device for frequency conversion system
  • Water-cooling resistance device for frequency conversion system

Examples

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the drawings and specific embodiments of the specification.

[0023] Such as Figure 1 to Figure 3 As shown, the water-cooled resistance device for a frequency conversion system of this embodiment includes a box body 1 in which more than one hollow tube 2 is provided. One end of the hollow tube 2 is closed, and the other end is open and sealed in the box. The inner wall of the body 1 isolates the inner cavity of the hollow tube 2 from the inner cavity of the box body 1. The box body 1 is provided with a hole communicating with the inner cavity of the hollow tube 2, and the hole is set directly opposite to the hollow tube 2. The hollow tube 2 is provided with a resistance component 3, and the resistance component 3 is sealed in the hollow tube 2 through a sealing layer at the opening. An insulating and heat-conducting layer is filled between the inner wall of the hollow tube 2 and the resistance compo...

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PUM

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Abstract

The invention discloses a water-cooling resistance device for a frequency conversion system. The water-cooling resistance device comprises a box, wherein more than one hollow pipe is arranged in the box, one end of the hollow pipe is closed, the other end of the hollow pipe is opened and is hermetically arranged on the inner wall of the box so that an internal cavity of the hollow pipe is isolated from an internal cavity of the box, a hole is formed in the box and is communicated with the internal cavity of the hollow pipe, a resistance assembly is arranged in the hollow pipe and is sealed at the opening by a sealing layer, an insulation heat conduction layer is filled between the inner wall of the hollow pipe and the resistance assembly, and a water inlet hole and a water outlet hole are formed in the box and are communicated with the internal cavity of the box. The water-cooling resistance device for the frequency conversion system has the advantages of simplicity in structure, small size, high cooling effect and the like, and is convenient to maintain.

Description

Technical field [0001] The present invention mainly relates to the technical field of frequency conversion equipment, and particularly refers to a water-cooled resistance device used in a frequency conversion system. Background technique [0002] During the operation of the frequency conversion system, in order to prevent the intermediate DC voltage from rising beyond the allowable range, it is necessary to absorb energy and reduce the corresponding overvoltage through the opening of the resistance device branch to ensure the safe and stable operation of the frequency conversion system. As the frequency conversion system is becoming more and more lightweight, it is required that the energy absorption resistance device as a component of the frequency conversion system meets the requirements of use and is as small as possible, lightweight, modular, and easy to install and maintain. Traditional overvoltage chopper energy absorption resistance devices all use natural cooling or force...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01C1/082H01C1/014H01C3/20
CPCH01C1/082H01C1/014H01C3/20
Inventor 刘业平王挺泽朱继贤倪淑银
Owner HUZHOU CRRC SPECIAL ELECTRICAL EQUIP CO LTD
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