Cooling device and system
A cooling device and external cooling technology, applied in cooling/ventilation/heating renovation, electrical components, electrical equipment structural parts, etc., can solve the problems of high cost of distributors, large space occupation, and complicated piping design of cooling devices, etc. Achieve the effect of eliminating complex structural design, saving space, improving reliability and convenience
Active Publication Date: 2020-05-26
CRRC YONGJI ELECTRIC CO LTD
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Problems solved by technology
[0005] However, the pipeline design of this kind of cooling device is relatively complicated and takes up a large space, and the distributor is used to connect the water pump and the water inlet and outlet pipelines, and the cost of the distributor is relatively high.
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[0032] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0033] At present, the cooling methods of the converter mainly include natural cooling, forced air cooling, and water circulation cooling. For the cooling of the locomotive converter, the water circulation cooling method is usually adopted in China, that is, the power device is installed on the water-cooled substrate, and then the wat...
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The invention provides a cooling device and system. The cooling device comprises an in-cabinet cooling device and an out-cabinet cooling device, wherein the in-cabinet cooling device comprises a waterinlet main pipeline, a water outlet main pipeline, a water pump and at least one water connecting plate, and the out-cabinet cooling device comprises a water inlet pipe of a converter and a water outlet pipe of the converter. The water inlet pipe of the converter is connected to a water inlet of the water pump through the flange design of the pipeline, transition connection of a water inlet distributor is omitted, a water outlet of the water pump is directly connected with the pipeline flange, and the design of a water outlet distributor is omitted. Finally, while the performance of the cooling system is guaranteed, the complex structural design of the water distributor is omitted, and the complex structure of out-cabinet pipeline is simplified. Compared with the prior art that a coolingdevice with large size and high cost needs to be adopted, the scheme of the invention effectively saves the space, reduces the weight of the converter and reduces the design cost.
Description
Technical field [0001] The present invention relates to the field of cooling technology, in particular to a cooling device and system. Background technique [0002] The locomotive converter is an important part of the locomotive electric drive system, which provides power for the locomotive traction motor. The rectification and inversion functions of the converter are realized by the Insulated Gate Bipolar Transistor (IGBT) of the power device. Frequent turn-on and turn-off of the IGBT will generate a large amount of energy loss and increase the temperature of the IGBT device. Therefore, a certain cooling method is needed to help the IGBT to dissipate heat in order to maintain the normal operation of the converter. [0003] figure 1 Is a schematic diagram of a water cooling system used in the converter of a high-power locomotive in the prior art, [0004] figure 2 It is a three-dimensional schematic diagram of a water cooling device used in a converter of a high-power locomotive i...
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IPC IPC(8): H05K7/20
CPCH05K7/20927H05K7/20
Inventor 马连凤尚锋亮杨春宇赵娜赵节芳
Owner CRRC YONGJI ELECTRIC CO LTD