A wax type thermostat

Abstract

The invention discloses a wax-type thermostat, which comprises a bracket, a casing, a reverse push rod whose upper end is installed on the bracket, an inner container, a plug and a paraffin filler arranged in the casing, and the paraffin filler is placed in the plug In the accommodating cavity formed by sealing with the inner tank, the lower end of the reverse push rod extends into the accommodating cavity through the through hole on the plug, and the lower end of the reverse push rod protruding into the accommodating cavity is covered with a The upper end of the rubber sleeve extends to the outside of the accommodating cavity along the outer wall of the reverse push rod, and the rubber sleeve is sealed with the inner wall of the through hole. The adjusting nut used to adjust the height of the reverse push rod, the lower end of the reverse push rod is provided with a heat conduction head, the heat conduction head and the reverse push rod are detachably connected, and the reverse push rod is provided with a detection sensor for the temperature sensor to extend into the heat conduction head aisle. The invention provides a wax type thermostat which can detect the response time among products and can make the product response time consistent after detection.

Description

technical field [0001] The invention relates to the technical field of automobile engine cooling systems, in particular to a wax type thermostat. Background technique [0002] The thermostat automatically adjusts the amount of water entering the radiator according to the temperature of the cooling water, and changes the water circulation range to adjust the heat dissipation capacity of the cooling system to ensure that the engine works within a suitable temperature range. The thermostat must be kept in good technical condition, otherwise it will seriously affect the normal operation of the engine. [0003] At present, the commonly used thermostat is a wax-type thermostat. When the temperature of the coolant is lower than the specified value, the paraffin wax in the temperature sensing body of the thermostat is solid, and the thermostat valve closes the gap between the engine and the radiator under the action of a spring. The coolant returns to the engine through the water p...

AI Technical Summary

Problems solved by technology

That is, if the main valve of the thermostat is opened too late, the engine will overheat; if the main valve is opened too early, the engine warm-up time will be prolonged and the engine temperature will be too low.

[0005] The composition and content of paraffin wax of each wax-type thermostat, the difference in thermal conductivity of the thermostat shell, the weight difference of the push rod and other factors will lead to differences in the response time of each wax-type thermostat. The above-mentioned difference in response time in the prior art thermostat is uncontrollable, which obviously does not meet the product requirements of the automotive industry

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