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Engine electronic thermostat heating push rod

2017-07-28 11:23:53 China Heatle electric co., Ltd Read

Background technology

It is well known that thermostat is an automatic temperature regulating device for controlling the large or small cycle of engine coolant, which ensures that the engine works at a suitable temperature range. When the coolant temperature is lower than the prescribed value, the thermostat in the temperature of paraffin is solid, the thermostat valve is closed between the engine and radiator channel under the action of the spring, the cooling liquid directly through the return pump engine coolant circulation is small in the engine; when the coolant temperature reaches the prescribed value, temperature gradually melted into liquid paraffin, paraffin in the thermostat temperature within the volume increases and compression hose shrinkage hose while contracting of thermostat push rod thrust, push rod produced thrust open the valve of the thermostat valve, the coolant through the radiator, thermostat valve, water pump returns to the engine, proceed big circulation. Electronic thermostat mainly comprises a push rod, tube, electric heating plate, high temperature, Lawan wire and a sealing ring, wherein, high temperature wire connected with an electric heating sheet, when the coolant temperature reaches the set value, the ECU sends electrical signals, electrical signals through the high temperature line and the electrical heating piece through electric heating, heating melt volume Lawan increase and compression hose, hose thrust on the push rod, the push rod generated reverse thrust open the valve of the thermostat valve. However, due to the direct heating electric heating sheet Lawan, deformation, brittle easily occur when heated, short service life, usually six months to be replaced once, if not timely replacement, easy to cause the engine operating temperature is too high to affect the service life of the engine, so how to extend the electronic thermostat heating element life is guaranteed the engine is the key work of long-term appropriate temperature range, but also has good market prospects.

summary of the invention

The aim of the invention is to provide a heating element is arranged on the push rod inside the engine electronic thermostat heating rod, prolong the electronic thermostat heating element life, ensure that the engine work in suitable temperature range. In order to achieve the goal, the technical proposal of the invention is as follows: an electric temperature push rod for an engine electronic thermostat comprises a push rod body; a heating element is arranged inside the push rod body. When the engine coolant temperature reaches the set value, putting the heating elements inside the main body of the heating element, the heat generated by the push rod body, hose after heating of the temperature sensing, temperature sensing paraffin heat to melt volume increases and compression hose, hose produced electric push rod thrust to push rod generated reverse thrust acting on the thermostat valve from thermostat valve open, coolant circulation. Because the heating element is arranged inside the push rod body, the heating element can not be deformed or even broken by the external force, thereby ensuring the service life of the heating element. Preferably, the heating element including Magnesium Oxide bar, electric wire and high temperature wire, electric wire winding in Magnesium Oxide stick, Magnesium Oxide stick through the open end of the push rod body is inserted into a body inside the high temperature line extends into the pusher body inside and around the heating wire rod ends Magnesium Oxide is connected with the extending end connected with the control power supply and the high temperature line. The coolant temperature reaches a predetermined value, the ECU sends electrical signals, the winding electric wire fever in Magnesium Oxide bar, electric wire heat transfer to the external push rod temperature sensing paraffin melting temperature of paraffin melting and the volume increased, the compression rod external hose, hose compression thrust to push open the role of the thermostat valve push rod in reverse thrust under the engine coolant circulation. Because the heating element is made of Magnesium Oxide bar, electric wire and high temperature wire heater, will become the traditional bar type heater, heater overcomes the defect of short service life, but still has no advantages of deformation, embrittlement, fracture. Compared with the prior art, the obvious effect is the first heating element is the push rod and the integration of internal electronic thermostat, avoid heating element under the action of external force and deformation, fracture, extension of the electronic thermostat heating element life, ensure that the engine work in suitable temperature range; at the same time the heater usually adopts electronic thermostat for rod type heater, rod type heater chip has the advantages of less than, embrittlement, deformation, fracture, long service life, but also has the advantages of simple structure; of course, the design, the internal structure of the electronic thermostat easier. Also helps to reduce the production cost and difficulty.

Specific embodiment mode

The present invention is further illustrated with specific drawings and embodiments. Embodiment 1, as shown in Fig. 1, an engine electronic thermostat electric push rod comprises a push rod body 1, and, as a preferable, the push rod body 1 adopts a hollow stainless steel tube. In this embodiment, the push rod material body 1 is 316 titanium, titanium is what we say, the chemical formula for ICrlSM 12Mo2Ti, the 316 electric titanium rod has good heat transfer, the electric push rod heat transfer efficiency; while using electric 316 titanium push rod to ensure smooth surface good, avoid putting jamming under hose thrust; 316 titanium also has good high-temperature resistance, will help increase the electronic thermostat electric heater rod life. The push rod body 1 is internally provided with a heating element. Prior to inserting the heating element into the push rod body 1, one end of the push rod body 1 is welded and sealed by the stainless steel seal 6, and the heating element is inserted into the push rod body 1 through an open end of the push rod body 1. In the present embodiment, stainless steel is sealed


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