IGBT (Insulated Gate Bipolar Transistor) water cooling radiator

Abstract

The invention discloses an IGBT (Insulated Gate Bipolar Transistor) water cooling radiator which comprises a water inlet and outlet joint, a flat substrate and a groove substrate. Two guide pillars capable of being used for rapidly inserting and drawing water pipes and two water inlet and outlet ports are arranged on the water inlet and outlet joint; the flat substrate is fixed at the lower end of the water inlet and outlet joint; and the groove substrate is fixed at the lower end of the flat substrate. The IGBT water cooling radiator is characterized in that a water inlet and a water outlet which are communicated with both ends of a main flow passage on the groove substrate are respectively arranged on the flat substrate; at least two flow passage baffles capable of dividing the main flow passage into a plurality of branch flow passages are arranged in the main flow passage; and the number of the branch flow passages is one more than that of the flow passage baffles. According to the invention, by changing the circulation mode of the liquid flow passages on the groove substrate, i.e. processing a plurality of thin flow passage baffles on the main flow passage of the groove substrate so as to form a plurality of branch flow passages, the heat dissipation area is increased, the perturbation of liquid is improved, a cooling medium flows through the fine circulation water passages, the heat transfer is strengthened, and the heat dissipation efficiency of the radiator is effectively improved, so that the cooling requirement of a high-power IGBT is met.

Description

technical field [0001] The invention relates to the technical field of heat exchange, in particular to an IGBT water-cooled radiator. Background technique [0002] In recent years, electric locomotives for railway traction in my country have developed rapidly. There are more and more types of electrical components used in electric locomotives. The electrical components of transformers and main converters will generate heat loss during work and emit a large amount of heat. In order to To ensure the normal operation of transformers and main converters, appropriate radiators must be used to meet the operating needs of different motors and electrical appliances on the locomotive under different working conditions. Water-cooled condensers are also called water-cooled radiators, all of which adopt a full water-cooled structure. In this condenser, the heat released by the cooling and condensation of the refrigerant is taken away by the cooling water. Compared with the air-type air-c...

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Problems solved by technology

However, the most common flow path type of this water-cooled condenser is a single flow path. In a water plate of the same size, the single flow path is either very long or the flow path is very wide. A long flow path increases the resistance of the bend, although it can Enlarging the heat dissipation area improves the heat dissipation, but at the same time it brings the disadvantage of high resistance; although the wide flow channel has greatly helped to reduce the resistance, but the wide flow channel will inevitably reduce the heat dissipation area, which is difficult to meet the heat dissipation requirements of high-power IGBTs. Require

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