Vehicle detection control device for electric leakage and temperature
A detection control and leakage detection technology, applied in circuit devices, emergency protection circuit devices, automatic disconnection emergency protection devices, etc., can solve problems such as easy explosion, and achieve the effect of avoiding explosion hazards.
Inactive Publication Date: 2013-09-25
HANGCHA GRP
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Problems solved by technology
In such an explosive environment, if there are open flames, electrical sparks, mechanical sparks, and high-temperature surfaces, it is very easy to explode, causing heavy casualties and huge economic losses.
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[0024] This embodiment is a leakage and temperature detection and control device for explosion-proof internal combustion construction machinery vehicles, which can monitor the temperature of various heat sources during the operation of the vehicle in real time, and simultaneously detect the insulation between the vehicle's electrical circuit and the entire vehicle. If the temperature of the heat source exceeds the preset value or the insulation between the outer surface of the vehicle and the electrical circuit is damaged, the fuel supply circuit and the main power supply circuit of the vehicle will be cut off immediately, and the failure status will be displayed on the instrument, effectively avoiding the danger of explosion.
[0025] Such as figure 1 As shown, the vehicle leakage and temperature detection control device in this example includes a CPU control circuit 1 , a temperature control switch 2 , a leakage detection circuit 3 , a leakage self-test circuit 6 , an input i...
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The invention relates to a vehicle detection control device for electric leakage and temperature. The purpose is that temperature of a vehicle is monitored in real time, and meanwhile insulation conditions between an electrical circuit of the vehicle and the whole vehicle are detected, so that explosion danger is prevented from happening. According to the technical scheme, the vehicle detection control device for the electric leakage and the temperature is characterized by comprising a temperature control switch, an electric leakage detection circuit, a CPU control circuit and a switch power circuit. The temperature control switch is used for monitoring real-time temperature of each heating source. The electric leakage detection circuit is used for detecting insulation resistance among an outer shell of the vehicle, a positive electrode and a negative electrode of a vehicle-mounted storage battery. The CPU control circuit is used for controlling the on-off of a fuel feed circuit and a power supply circuit of the vehicle according to signals emitted by the temperature control switch and the electric leakage detection circuit. The switch power circuit is used for supplying power to each functional circuit. The vehicle detection control device for the electric leakage and the temperature is suitable for anti-explosion diesel fork lift trucks and other anti-explosion diesel engineering machinery vehicles under kinds of explosion environments.
Description
technical field [0001] The invention relates to a vehicle leakage and temperature detection and control device. It is suitable for explosion-proof internal combustion forklifts and other explosion-proof internal combustion construction machinery vehicles in various explosive environments. Background technique [0002] Explosive substances exist in many production sites. For example, there are explosive substances in about two-thirds of the underground coal mines, and more than 80% of the production workshop areas in the chemical industry. In such an explosive environment, if there are open flames, electrical sparks, mechanical sparks, and high-temperature surfaces, it is very easy to explode, causing heavy casualties and huge economic losses. Therefore, construction machinery vehicles used in explosive environments must be explosion-proof. The surface temperature of this type of vehicle must be limited below the maximum temperature that may ignite the surrounding explosive...
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IPC IPC(8): H02H5/04
Inventor 章亚明
Owner HANGCHA GRP