Cooling water flow adjusting device and thermostat

Abstract

The invention discloses a cooling water flow adjusting device and a thermostat, the cooling water flow adjusting device is arranged at an inlet of a water inlet shell of the thermostat, the cooling water flow adjusting device comprises a supporting seat, the supporting seat comprises a supporting seat bottom plate and a supporting seat side wall connected with the supporting seat bottom plate, andthe supporting seat bottom plate is also provided with a water passing hole for cooling water to pass through; and the shielding piece is used for abutting against the bottom end face of the supporting base bottom plate, and the shielding piece adjusts the flow of cooling water according to different shielding areas of the water passing holes. After cooling water enters from the inlet of the thermostat water inlet shell, the cooling water firstly passes through the water passing hole, and at the moment, the shielding piece is adjusted to shield different areas of the water passing hole, so that the working temperature of the fuel cell is accurately adjusted, and the normal work of the fuel cell is further ensured.

Description

technical field [0001] The invention relates to the technical field of vehicle cooling systems, in particular to a cooling water flow regulating device and a thermostat. Background technique [0002] The fuel cell thermostat automatically adjusts the amount of water entering the radiator according to the temperature of the cooling water, changes the water circulation range, and adjusts the heat dissipation capacity of the cooling system to ensure that the proton exchange membrane of the fuel cell works within a suitable temperature range. Therefore, the thermostat must be kept in good technical condition, otherwise it will seriously affect the normal operation of the stack. The heating time is prolonged, so that the temperature of the stack is too low. [0003] Usually, the thermostat adjusts the valve core, uses the melting of paraffin, and opens and closes the flow of air, gas or liquid by thermal expansion or contraction, so as to adjust the flow rate of each branch. Th...

AI Technical Summary

Problems solved by technology

[0002] The fuel cell thermostat automatically adjusts the amount of water entering the radiator according to the temperature of the cooling water, changes the water circulation range, and adjusts the heat dissipation capacity of the cooling system to ensure that the proton exchange membrane of the fuel cell works within a suitable temperature range. Therefore, the thermostat must be kept in good technical condition, otherwise it will seriously affect the normal operation of the stack. Prolonged heating time makes the stack temperature too low

[0003] Usually, the thermostat adjusts the valve core, uses the melting of paraffin, and opens and closes the flow of air, gas or liquid by thermal expansion or contraction, so as to adjust the flow rate of each branch. The structure cannot precisely adjust the operating temperature of the fuel cell

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