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Locomotive electrical cabinet cooling device and locomotive electrical cabinet

A technology for cooling devices and electrical cabinets, used in cooling/ventilation/heating transformation, non-electric variable control, instruments, etc., can solve the problems of reducing the maintainability of electrical cabinets, complex structure of cooling devices, and high requirements for connection and sealing. Improved stability and energy utilization, improved maintainability, good cooling effect

Active Publication Date: 2016-03-16
CRRC DALIAN R & D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of cooling device has a complex structure and high requirements for connection sealing. The fan, radiator and pipes all need to be installed inside the electrical cabinet. The stability of the cabinet, complex piping will also reduce the maintainability of the electrical cabinet

Method used

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  • Locomotive electrical cabinet cooling device and locomotive electrical cabinet
  • Locomotive electrical cabinet cooling device and locomotive electrical cabinet
  • Locomotive electrical cabinet cooling device and locomotive electrical cabinet

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Embodiment Construction

[0023] Such as Figure 1-3 As shown, the present invention provides a cooling device for an electrical cabinet of a locomotive. The cooling device includes a central control unit 1 and at least one refrigerating unit 2. The refrigerating unit 2 includes heat conducting plates 21, 22a mounted on a heating element 100 inside the electrical cabinet. The thermoelectric refrigeration element 22 connected to the cold end of the heat conducting plate 21, the radiator 23 connected to the hot end 22b of the thermoelectric refrigeration element, and the fan 24 arranged close to the radiator; a first temperature sensor 10 is arranged on the heat conducting plate 21, and the heat sink 23 is provided with a second temperature sensor 20; the central control unit 1 includes a microcontroller 11 and the same number of measurement and control modules as the refrigeration unit 2; each measurement and control module 12 controls a refrigeration unit 2; the microcontroller 11 according to the first ...

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Abstract

The invention provides a locomotive electrical cabinet cooling device and a locomotive electrical cabinet. The device comprises a central control unit and at least one refrigeration unit. The refrigeration unit comprises a heat conduction plate, a thermoelectric refrigeration element, a heat radiator, and a blower fan. The heat conduction plate and the heat radiator are respectively provided with a first temperature sensor and a second temperature sensor. The central control unit comprises a microcontroller and a measurement and control module. The microcontroller outputs a first control signal according to the first temperature sensor, and the measurement and control module receives the first control signal and controls the thermoelectric refrigeration element to operate at certain refrigerating power. The microcontroller outputs a second control signal according to the second temperature sensor, and the measurement and control module receives the second control signal and controls the blower fan in the refrigeration unit to operate at a certain speed. The device is better in cooling effect, reduces the size of the electrical cabinet, improves the maintainability, can quickly enable the internal temperature of the electrical cabinet to be reduced to be lower than the environment temperature, and greatly improves the cooling efficiency and speed.

Description

Technical field [0001] The invention relates to the cooling technology of a locomotive electrical cabinet, in particular to a locomotive electrical cabinet cooling device and a locomotive electrical cabinet. Background technique [0002] High-power semiconductor components are an important component of the locomotive's electric drive system, and they are usually installed in the electrical cabinet. When high-power semiconductor components work, the energy consumed is released in the form of heat. If this part of the heat is not discharged from the electrical cabinet in time, the electrical cabinet will not work normally, and in severe cases, internal components will burn. [0003] At present, refrigerant circulation is the main cooling method for locomotive electrical cabinets. This traditional cooling device is composed of water tanks, water pumps, fans, radiators, pipes, etc. The refrigerant usually uses a mixture of water and glycol, which acts as a water pump. Circulates in th...

Claims

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Application Information

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IPC IPC(8): H05K7/20G05D23/20
Inventor 邓然王延超鲁振山
Owner CRRC DALIAN R & D CO LTD
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