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starter protection relay

A technology for protecting relays and driving circuits, which is used in the starting of the engine, the starting of the motor for the engine, and the engine components, etc., can solve the problems of low electrical quality and overload of the starter, so as to avoid burning the wiring harness, prolong the service life, and prevent burning. Effect

Active Publication Date: 2015-09-02
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the failure rate of commercial vehicle starters in my country has been high. The main reason is that the quality of the electrical appliances itself is not high. Therefore, the starter needs to be protected to prevent failure due to improper operation

Method used

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Embodiment Construction

[0025] In order to further illustrate the structure and function of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0026] Figure 1 to Figure 5 Are related drawings of the present invention, figure 1 It is the principle block diagram of the starting protection relay of the present invention. As shown in the figure, the working principle of the starting protection relay of the present invention is: when the input control voltage is applied to the input terminal, it passes through the delay circuit and then passes through the isolation circuit. The signal is transmitted to the drive circuit, and the drive circuit controls the on and off of the output circuit to turn on the relay; when the input signal is removed, the drive circuit turns off the power tube of t...

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Abstract

The invention discloses a starting protection relay. The starting protection relay comprises a constant current input circuit module, a time-delay circuit module, an isolating circuit module, a driving circuit module and an output module which are electrically connected in turn; the time-delay circuit module comprises an RC (Resistor-Capacitor) circuit, a diode and a negation gate; the isolating circuit module comprises an oscillating circuit and a transformer which is coupled to the oscillating circuit; the driving circuit module comprises a field effect tube, an overheat protector and a first RCD (Residual Current Device) circuit; the field effect tube is an insulated gate field effect tube namely an MOSFET (Metal Oxide Semiconductor Field Effect Transistor); the output circuit module comprises a second RCD circuit; the output end of the second RCD circuit is electrically connected with a starter. The starting protection relay can effectively protect the starter by limiting a single starting time.

Description

Technical field [0001] The present invention relates to the technical field of relays, and more specifically to a starter protection relay for commercial vehicle starters. Background technique [0002] At present, the failure rate of commercial vehicle starters in my country has been high. The main reason is that the quality of the electrical appliances is not high, and on the other hand, due to the complicated use environment in my country, the starter is overloaded when some engines are started, and the starter is energized for a long time. Therefore, the starter needs to be protected to prevent malfunction due to improper operation. Summary of the invention [0003] The present invention provides a starter protection relay for solving the above-mentioned problems, which effectively protects the starter by limiting the single start time. [0004] The present invention adopts the following technical solution to achieve the above objective: A starter protection relay, characterized ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02N11/08
Inventor 吴子乔杨仕明孔令鑫陈健良
Owner GUANGXI YUCHAI MASCH CO LTD
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