Electric vehicle and its low-voltage power supply device

An electric vehicle, low-voltage power supply technology, applied in the field of vehicles, can solve problems such as inconvenience for users, and achieve the effect of improving experience

Inactive Publication Date: 2020-06-02
BORGWARD AUTOMOTIVE CHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the disadvantage of related technologies is that electric vehicles need to be charged by off-board chargers of corresponding specifications, that is, electric vehicles with 12V low-voltage power supply systems need to be charged by off-board chargers that provide 12V low-voltage auxiliary power, and electric vehicles with 24V low-voltage power supply systems It needs to be charged by an off-board charger that provides 24V low-voltage auxiliary power, which is not convenient for users to use

Method used

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  • Electric vehicle and its low-voltage power supply device
  • Electric vehicle and its low-voltage power supply device
  • Electric vehicle and its low-voltage power supply device

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Embodiment Construction

[0020] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0021] The low-voltage power supply device for an electric vehicle and an electric vehicle having the same provided by the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0022] In one embodiment of the present invention, the low-voltage power supply device can supply power to low-voltage equipment of an electric vehicle, such as a battery management system in a high-voltage power battery system. The battery management system is...

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Abstract

The invention discloses an electromobile and a low-voltage power supply device thereof. The device comprises a first low-voltage power supply end and a low-voltage auxiliary circuit; the first low-voltage power supply end is connected with a low-voltage auxiliary power supply of a non-vehicle-mounted charger to receive a first low-voltage DC output by the low-voltage auxiliary power supply of the non-vehicle-mounted charger; and the low-voltage auxiliary circuit includes an input end and an output end, the input end is connected with the first low-voltage power supply end, the output end is connected with a battery management system of the electromobile, and the low-voltage auxiliary circuit carries out voltage transformation on the first low-voltage DC according to the voltage type of the first low voltage DC and a power supply demand of the battery management system. Thus, compatibility requirements of non-vehicle-mounted chargers with different specifications of low-voltage auxiliary power supplies can be met, a user can use the non-vehicle-mounted charger more conveniently, and the user experience is improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a low-voltage power supply device for an electric vehicle and an electric vehicle. Background technique [0002] The low-voltage power supply systems of electric vehicles in the related art are generally divided into two types, one is a 12V low-voltage power supply system, and the other is a 24V low-voltage power supply system. According to the charging standard of the new energy vehicle industry, when the high-voltage power battery of an electric vehicle is charged in DC, the low-voltage power supply is provided by the low-voltage auxiliary power supply of the off-board charger, so the off-board charger is correspondingly divided into two types, one is to provide 12V The off-board charger for low-voltage auxiliary power supply, the other is the off-board charger that provides 24V low-voltage auxiliary power supply. [0003] However, the disadvantage of the related technology i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J1/10
CPCH02J1/10
Inventor 左从兵赵俊桃
Owner BORGWARD AUTOMOTIVE CHINA CO LTD
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