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Power cell charging circuit and vehicle

A charging circuit and charging circuit technology, applied in the field of circuits, can solve problems such as IGBT's easy damage, and achieve the effect of solving easy damage and improving service life.

Inactive Publication Date: 2017-05-17
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a charging circuit for a power battery and an automobile to solve the problem that the IGBT in the used two-phase circuit is easily damaged because the charging circuit structure of the power battery in the prior art is charged by a fixed two-phase circuit. The problem

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  • Power cell charging circuit and vehicle
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  • Power cell charging circuit and vehicle

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Embodiment Construction

[0054] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0055] According to an aspect of an embodiment of the present invention, a charging circuit for a power battery is provided, such as Figure 1 to Figure 3 As shown, it includes: a first-phase electric charging circuit 1 , a second-phase electric charging circuit 2 , a third-phase electric charging circuit 3 , a Buck step-down circuit 4 and a neutral line 5 .

[0056] Among them, such as figure 1 As shown, the first-phase electric charging circ...

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Abstract

The invention provides a power cell charging circuit and a vehicle. The power cell charging circuit comprises a first phase electric charging circuit body, a second phase electric charging circuit body, a third phase electric charging circuit body, a Buck step-down circuit and a neutral lead; a fifth switch is arranged between the first phrase electric charging circuit and the second phase electric charging circuit, the first end of the fifth switch is electrically connected with the input end of first phase electricity, and the second end of the fifth switch is electrically connected with the first end of a second switch; a sixth switch is arranged between the second phase electric charging circuit and the neutral lead, the first end of the sixth switch is electrically connected with the second end of the second switch, and the second end of the sixth switch is electrically connected with the neutral lead.

Description

technical field [0001] The invention relates to the technical field of circuits, in particular to a charging circuit for a power battery and an automobile. Background technique [0002] In the one-way charging project of electric vehicle network technology (V2G, Vehicle-to-grid), due to the fixed input interface, only two phases of the three-phase circuit can be used as one-way charging channels, and the rest One phase will never be used, that is, a fixed two-phase charging circuit is used to charge the power battery, so that after the used two-phase circuit works for a long time, the two-phase insulated gate bipolar transistor (Insulated Gate Bipolar Transistor) Transistor, referred to as IGBT), the service life will be greatly reduced, prone to damage. Contents of the invention [0003] The embodiment of the present invention provides a charging circuit for a power battery and an automobile to solve the problem that the IGBT in the used two-phase circuit is easily damag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/10H02M3/158
CPCH02J7/06H02J2007/10H02M3/1582
Inventor 周青山刘立志葛亮
Owner BEIJING ELECTRIC VEHICLE