A cold plate evaporator refrigerant cooling system and its control method
A cooling system and evaporator technology, applied in temperature control, non-electric variable control, control/regulation system, etc., can solve the problems of difficult control of cold plate temperature, delay of compressor control, over-temperature of devices, etc., to overcome the problems of cold plate temperature The effect of temperature change, improving control accuracy, and speeding up control speed
Active Publication Date: 2018-08-14
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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Problems solved by technology
In this system, due to the degree of overheating, the temperature at the outlet cold plate will easily fluctuate, which may lead to overheating of the device; also when the input power of the module increases and the heat production increases, it is reflected that there is a hysteresis phenomenon in the temperature change of the cold plate , at this time, the system uses the temperature of the cold plate as the factor of the speed control of the compressor, which will also cause the compressor control to lag, making it difficult to control the temperature of the cold plate
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[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0025] Such as figure 1 As shown, the cold plate evaporator refrigerant cooling system of this embodiment includes a control unit (such as a controller 17) and a cooling circuit, and the cooling circuit includes a sequentially connected compression assembly (such as compressor 1), a condensation assembly, and a first switch assembly And the cold plate evaporator 11, the power module on the cold plate evaporator 11 is provided with a power detection part, the controller 17 is connected with the power detection part and the compressor 1, and is used for controlling the input power of the power module detected by the power detection part Cooling capacity of compressor 1. The cold plate evaporator refrigerant cooling system of the present invention adjusts the cooling capacity of the compressor 1 through the input power of the power module on the ...
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The invention discloses a cold plate evaporator refrigerant cooling system including a control unit and a cooling circuit, the cooling circuit includes a compression assembly, a condensation assembly, a first switch assembly and a cold plate evaporator that are successively connected, the power module of the cold plate evaporator is provided with a power detection member, and the control unit is connected with the power detection member and the compression assembly and controls the refrigerating capacity of the compression assembly according to the input power of the power module detected by the power detection member. The invention further discloses a control method based on the cold plate evaporator refrigerant cooling system. The control method includes S01 at first, detecting the input power of the power module on the cold plate evaporator in real time; and S02 adjusting the refrigerating capacity of the compression assembly according to the input power. The cooling system and the control method have the advantages of fast response speed and accurate control.
Description
technical field [0001] The invention mainly relates to the technical field of heat dissipation, in particular to a cold plate evaporator refrigerant cooling system and a control method thereof. Background technique [0002] In the heat dissipation device of power devices such as power electronic devices, it is a very effective form to use refrigerant to cool the cold plate. The refrigerant cooling system generally includes a compressor, an evaporator, a condenser, and a throttling mechanism. The refrigerant realizes the function of refrigeration through the circulation and state change in the system. When in use, the compressor compresses the low-temperature and low-pressure refrigerant into a high-temperature and high-pressure refrigerant. After cooling through the condenser, the gaseous refrigerant becomes a liquid refrigerant. After being decompressed by the throttling mechanism, it flashes into a two-phase state and enters the evaporator to absorb heat. And make the obj...
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IPC IPC(8): G05D23/22H01L23/367H01L23/427
Inventor王春燕姚磊吴江权邓文川冯钊赞何凯郭宗坤李诗怀曾云峰
OwnerCSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST