Bidirectional power supply circuit suitable for electric vehicle AC charging pile
An AC charging pile, two-way power supply technology, applied in electric vehicle charging technology, electric vehicles, AC network circuits and other directions, can solve the problem that the power supply circuit does not have the function of two-way power taking, and achieves simple circuit, simple circuit structure, and circuit volume. small effect
Pending Publication Date: 2020-05-19
上海循道新能源科技有限公司
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The technical problem to be solved by the present invention is: the power supply circuit in the existing charging pile does not have a bidirectional power-taking function
Method used
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Embodiment Construction
[0011] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.
[0012] Such as figure 1 As shown, a bidirectional power supply circuit suitable for electric vehicle AC charging piles of the present invention includes a main body of a switching power supply and a switching circuit for taking power. Point 1 2 and moving contact 2 7, normally closed contact 1 3 and normally closed contact 2 6 of relay K are connected to the input terminal of the charging pile, and normally open contact 1 4 of relay K and normally open contact 2 5 are connected for charging The output terminal of the charging pile, and the coil of the relay K is connected to the output terminal of the charging pile. When the coil is not energized, the moving contact 1 2 and the normally closed contact 1 3 are closed, the moving contact 2 7 and the normally closed contact 6 are closed, and the main body of the switching power supp...
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The invention provides a bidirectional power supply circuit suitable for an electric vehicle AC charging pile, which is characterized by comprising a switching power supply main body and a power-taking switching circuit, wherein the power-taking switching circuit is a double-pole double-throw relay K; the switching power supply main body is connected with a first movable contact and a second movable contact of the relay K; a first normally-closed contact and a second normally-closed contact of the relay K are connected with the input end of the charging pile; a first normally-open contact anda second normally-open contact of the relay K are connected with the output end of the charging pile; and a coil of the relay K is connected with the output end of the charging pile. The circuit is simple in structure and has a bidirectional power taking function, power taking of the input end of the charging pile and power taking of the output end of the charging pile are completely and autonomously switched, meanwhile, the insulation and voltage resistance of the input end and the output end of the charging pile are not affected, the circuit size is small, and the circuit can be placed on amainboard in the portable charging pile.
Description
technical field [0001] The invention relates to a bidirectional power supply circuit suitable for an electric vehicle AC charging pile, and belongs to the field of electric vehicle intelligent charging facilities. Background technique [0002] The power supply in the electric vehicle AC charging pile is an extremely important module in the charging pile. It is responsible for converting high-voltage alternating current into a lower DC voltage to supply power to other circuits in the pile. It is an essential circuit in the pile. At present, the charging scenarios of electric vehicles are showing more and more diversified development trends, and some novel charging methods have appeared on the market, such as reverse discharge of the car to the socket, and the car charges another car through a double-ended gun , if you want to realize the above two functions on a portable charging pile (power bank), you must require the power supply circuit in the charging pile to have the fun...
Claims
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IPC IPC(8): H02J3/00B60L53/31
CPCB60L53/31Y02T10/70Y02T10/7072Y02T90/12
Inventor 余建东郭炼
Owner 上海循道新能源科技有限公司