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High-reliability knock sensor

A kind of deflagration sensor, a reliable technology, applied in the direction of instruments, measuring devices, measuring rapid changes, etc., can solve problems such as economical deterioration, increased engine wear, and deterioration of engine working conditions, and achieve the effect of preventing further deterioration

Inactive Publication Date: 2012-07-18
TAICANG KAIXIN ELECTRONICS
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AI Technical Summary

Problems solved by technology

[0002] When the mixture in the unburned part of the vehicle's cylinder burns by itself before the flame front arrives, forming a non-directional explosive combustion in the cylinder, this phenomenon is deflagration, which will cause strong vibration and strong metal knocking Noise, deflagration will destroy the normal combustion of the engine, so that the power and economy of the engine will deteriorate, and the pollution will increase. Deterioration will aggravate the wear of the engine; deflagration will easily cause the engine to overheat, increase the heat load of each component, and the temperature of the cooling water will lose control. After a long time, the cooling water will boil and the engine will not work

Method used

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Embodiment Construction

[0008] Below in conjunction with accompanying drawing, further illustrate the present invention.

[0009] like figure 1 figure 2 As shown, a highly reliable deflagration sensor according to the present invention includes an induction coil 1 , an iron core 2 , a casing 3 and a permanent magnet 4 .

[0010] A group of induction coils 1 are arranged inside the casing 3, an iron core 2 is arranged in the middle of the induction coil 1, and a permanent magnet 4 for strengthening the magnetic field is arranged at one end of the iron core 2.

[0011] The natural frequency of the deflagration sensor is consistent with the deflagration characteristic frequency of the engine. When the engine deflagrates, the iron core 2 provided in the casing 3 moves, and the induction coil 1 will generate an induced electromotive force due to the change of the magnetic flux. The iron core 2 moves with the engine. The vibration of the sensor moves, so that the induced electromotive force generated by...

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Abstract

The invention discloses a high-reliability knock sensor which comprises a inductance coil, an iron core, a shell and a piece of permanent magnet, wherein the shell is internally provided with a set of inductance coil; the iron core is arranged in the middle of the inductance coil; and the permanent magnet is arranged at one end of the iron core. The sensor is capable of outputting signal voltage to an electronic controller during detonation, thus reminding a driver of repairing and maintaining a vehicle and preventing the failure of an engine from further worsening.

Description

technical field [0001] The invention relates to a highly reliable deflagration sensor. Background technique [0002] When the mixture in the unburned part of the vehicle's cylinder burns by itself before the flame front arrives, forming a non-directional explosive combustion in the cylinder, this phenomenon is deflagration, which will cause strong vibration and strong metal knocking Noise, deflagration will destroy the normal combustion of the engine, so that the power and economy of the engine will deteriorate, and the pollution will increase. Deterioration will aggravate the wear and tear of the engine; deflagration will easily cause the engine to overheat, increase the heat load of each component, and the temperature of the cooling water will lose control. After a long time, the cooling water will boil and the engine will not work. Contents of the invention [0003] Purpose of the invention: the purpose of the present invention is to solve the deficiencies in the prior...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L23/22
Inventor 王平
Owner TAICANG KAIXIN ELECTRONICS
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