Multifunctional water-cooling radiator for locomotive charger
A water-cooled radiator and charger technology, applied in cooling/ventilation/heating transformation, electrical components, power electronics modification, etc., can solve the problem of large space occupied by the overall structure, heavy weight, high requirements for waterproof and dustproof design of heating parts problems, to achieve the effect of saving design space and reducing weight
Inactive Publication Date: 2021-04-27
CRRC YONGJI ELECTRIC CO LTD
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Problems solved by technology
[0005] 1) The existing charger radiator has a single function and can only dissipate heat from the heat-generating components directly installed on the radiator, which cannot meet the structural layout requirements of high-power bidirectional DC / DC chargers with limited volume
[0006] 2) The high-power heating components in the charger that cannot be directly assembled on the radiator need to be placed in a special air duct, and the waterproof and dustproof design requirements of the heating components are high
[0007] 3) The air-cooled radiator needs to be equipped with a special air duct, and the overall structure takes up a lot of space and is heavy
Method used
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[0023] The multifunctional radiator is composed of cold plate 1, fins 4, fan assembly 3 and water cooling joint 2. The structure of the multifunctional radiator is as follows: figure 1 and figure 2 shown. A cooling fluid circulation flow channel is reserved inside the cold plate 1, and water-cooling joints 2 are installed at both ends of the flow channel. The radiator is connected to the main pipeline of the vehicle cooling system through the water-cooling joint 2, and the coolant with a lower temperature flows in from the water inlet of the radiator to absorb the heat transferred to the cold plate. flow out.
[0024] The suction direction of the fan assembly 3 is parallel to the direction of the fins of the radiator. The fan sucks the air to flow, and promotes the heat transfer between the hot air and the fins. The fins transfer the absorbed heat to the cold plate, and the cooling liquid circulating in the cold plate To take away the heat, the multi-functional radiator bl...
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The invention relates to a radiator for a locomotive charger and particularly relates to a multifunctional water-cooling radiator for the locomotive charger. The multifunctional radiator is composed of a cold plate, fins, a fan assembly and water cooling connectors, wherein a cooling liquid circulation flow channel is reserved in the cold plate, and the water cooling connectors are installed at the two ends of the flow channel; the radiator is connected into a main pipeline of a whole vehicle cooling system through a water cooling connector, cooling liquid with low temperature flows in from a water inlet of the radiator to absorb heat transmitted to the cold plate, and the cooling liquid flows out from a water outlet of the radiator after the temperature rises. The air suction direction of the fan assembly is parallel to the direction of the fins of the radiator, the fan sucks air to flow, heat transfer between hot air and the fins is promoted, the fins transfer the absorbed heat to the cold plate, and the heat is taken away through cooling liquid circulating in the cold plate. The radiator has characteristics of miniaturization, light weight, integration and easiness in maintenance.
Description
technical field [0001] The invention relates to a radiator for a locomotive charger, in particular to a multifunctional water-cooled radiator for a locomotive charger. Background technique [0002] The bidirectional DC / DC charger of the hybrid electric shunting locomotive plays the function of managing the charging and discharging of the on-board power battery by controlling the on-off of its internal IGBT. In the process of charging the power battery, the charger acts as a step-down power supply to convert the DC bus voltage of the locomotive into an adjustable charging voltage for charging the power battery pack. During the discharge process, the charger acts as a boost source to transform the electric energy stored in the power battery to the DC bus of the locomotive for traction of the locomotive. Since the charger generates a lot of heat during charging and discharging, a high-efficiency radiator is needed to discharge the heat to ensure the charger can work continuous...
Claims
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IPC IPC(8): H05K7/20
CPCH05K7/2089H05K7/20927H05K7/20909
Inventor 张强强刘莉陈宏李东刘晨晓
Owner CRRC YONGJI ELECTRIC CO LTD