Low-voltage system supply circuit for electric automobile
A low-voltage system, electric vehicle technology, applied in electric vehicles, battery circuit devices, circuit devices, etc., can solve the problems of large electromagnetic interference, complex structure, inconvenient installation, etc., and achieve the effects of small electromagnetic interference, reduced quantity, and easy installation.
Inactive Publication Date: 2013-01-16
CHENGDU LAINTEM MOTORS CONTROL TECH
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the disadvantages of complex structure, high cost, inconvenient installation and large electromagnetic interference in the prior art, and provide a low-voltage system power supply circuit for electric vehicles
Method used
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[0019] Such as figure 1 As shown, the low-voltage system power supply circuit for electric vehicles includes a DC voltage converter control board 1, a DC voltage converter, an isolation transformer 2, a rectification filter circuit 3, a main power battery 4 and a storage battery 5, and a DC voltage converter control board 1 Connect with the DC voltage converter through the communication line, the input terminal of the DC voltage converter is connected with the main power battery 4, the output terminal of the DC voltage converter is connected with the input terminal of the isolation transformer 2, and the output terminal of the isolation transformer 2 is connected with the rectification filter circuit 3, and the rectification filter circuit 3 is connected to the storage battery 5. The DC voltage converter includes four main power devices 6 and two drive boards 7, each two of the four main power devices 6 are connected in series to form a group, and the input ends of the two gro...
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The invention discloses a low-voltage system supply circuit for an electric automobile. The low-pressure system supply circuit comprises a direct-current voltage converter control panel, a direct-current voltage converter, an isolation transformer and a rectification filter circuit. When at work, the direct-current voltage converter control panel controls the direct-current voltage converter to work so as to drive the isolation transformer to output low-voltage alternating current; the low-voltage alternating current is rectification filtrated through the rectification filter circuit and is used for charging a storage battery on the automobile; and the low-voltage alternating current and the storage battery provide power supply for a low-voltage system on the automobile. The low-voltage system supply circuit for the electric automobile has the advantages that on the basis of a main power supply system, the circuit for supplying power to the low-voltage system is arranged, and through integration and uniform design, the wiring and the number of large-current connector clips are effectively reduced, the structure is simple, the installation is easy, the cost is low, the electromagnetic interference is small, normal operation of the automobile cannot be affected, and the safety is high.
Description
technical field [0001] The invention relates to the field of electric vehicles, in particular to a low-voltage system power supply circuit for electric vehicles. Background technique [0002] At present, electric vehicles are equipped with a large number of electrical equipment, and many electrical equipment have become an indispensable standard configuration of electric vehicles. As the main power battery that supplies power to the running part of the electric vehicle, its output voltage is relatively high to drive the motor. And the high voltage of this active power battery can't be used on other low-voltage electric equipments again. The usual solution is to set up another independent low-voltage power supply system to supply power to low-voltage electrical equipment and control units. This method increases the number of wiring and high-current connectors and other equipment, resulting in increased costs, inconvenient installation, and overly complicated The circuit...
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Login to View More IPC IPC(8): B60L1/00H02J7/00
CPCY02T10/7241Y02T10/72
Inventor 张闯张振东王强恒李凡
Owner CHENGDU LAINTEM MOTORS CONTROL TECH