Constant voltage driving type eddy current retarder temperature alarm system based on coupling amplifying

Abstract

The invention discloses a constant voltage driving type eddy current retarder temperature alarm system based on coupling amplifying. The temperature alarm system is characterized in that the temperature alarm system is composed of a signal input circuit, an automobile power source, a constant voltage driving circuit, a trigger circuit, a display circuit, a grid coupling amplifying circuit and an alarm circuit; the constant voltage driving circuit is connected with the signal input circuit and the automobile power source at the same time; the trigger circuit, the display circuit and the grid coupling amplifying circuit are connected with the constant voltage driving circuit; the alarm circuit is connected with the display circuit; the grid coupling amplifying circuit is further connected with the trigger circuit which is further connected with the display circuit. The temperature alarm system is provided with the grid coupling amplifying circuit which can be used for amplifying a temperature signal input to the trigger circuit, and thus the trigger circuit can better control the alarm circuit, and an alarm signal can be sent out in time once the working temperature of an eddy current retarder is unusually high.

Description

technical field [0001] The invention relates to a temperature alarm system for an eddy current retarder, in particular to a constant voltage driven eddy current retarder temperature alarm system based on coupling amplification. Background technique [0002] With the wide application of eddy current retarders in my country's automobile industry, the safety of its use has been paid more and more attention by automobile manufacturers and users. When the eddy current retarder is working, the temperature of the rotor and coil rises rapidly, and the installation position of the eddy current retarder is very close to the oil seal end cover, which can easily cause the fuel tank to catch fire, and then cause a vehicle fire accident, resulting in serious accidents. loss. In order to avoid accidents caused by excessive temperature of the eddy current retarder, it is necessary to design a temperature alarm device to detect the temperature of the main engine of the eddy current retarder...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect that the sensitivity and accuracy of the traditional eddy current retarder temperature alarm system is not high, and it is impossible to send an alarm to the driver in time, and to provide a constant voltage driven eddy current retarder based on coupling amplification. Accelerator temperature alarm system

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