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Charging and travelling interlocking device for electric automobile

An interlocking device, a technology for electric vehicles, applied in electric vehicles, electrical devices, electric traction, etc., can solve problems such as the inability to guarantee the interlocking of driving charging, and the hidden dangers of misoperation.

Inactive Publication Date: 2013-03-06
SOUEAST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the driving charging interlocks currently used in electric vehicles use the control unit to control the relay to pull in, so as to achieve the purpose of charging driving interlocking. If the control unit signal fails, the driving charging interlocking cannot be guaranteed, resulting in problems with misoperation. Hidden danger

Method used

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  • Charging and travelling interlocking device for electric automobile
  • Charging and travelling interlocking device for electric automobile
  • Charging and travelling interlocking device for electric automobile

Examples

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Embodiment Construction

[0016] A charging driving interlock device for an electric vehicle, comprising a low-voltage control circuit and a high-voltage power distribution circuit, the low-voltage control circuit comprising a lead-acid battery, a relay J1, a fast charging switch, a slow charging switch, a relay J2, a key switch, and an ON gear and the low-voltage electrical unit; the negative pole of the lead-acid battery (not shown) is connected to the body ground, the positive pole B+ of the lead-acid battery is connected to one end of the control coil of the relay J1, and the positive pole B+ of the lead-acid battery is normally closed by the relay J1 The contact J1K is connected to the normally open contact J2K of the relay J2; after the fast charge switch and the slow charge switch are connected in parallel, they are connected in series between the other end of the control coil of the relay J1 and the body ground; One end of the control coil is connected to the ON gear, the other end is connected ...

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Abstract

The invention relates to a charging and travelling interlocking device for an electric automobile. The charging and travelling interlocking device comprises a low-voltage control circuit, wherein the low-voltage control circuit comprises a lead-acid battery, a relay J1, a quick charging switch, a slow charging switch, a relay J2, a key switch, an ON gear and a low-voltage electrical equipment unit, wherein an anode of the lead-acid battery is connected with one end of a control coil of the relay J1; the anode of the lead-acid battery is connected with a normally open contact of the relay J2 through a normally closed contact of the relay J1; the quick charging switch is in parallel connection with the slow charging switch and then is serially connected between the other end of the control coil of the relay J1 and the automobile body ground; one end of the control coil of the relay J2 is connected with the ON gear while the other end is connected with the automobile body ground; the normally open contact of the relay J2 is connected with the low-voltage electrical equipment unit; and the ON gear is connected with the lead-acid battery through the key switch. The charging and travelling interlocking device for the electric automobile effectively and conveniently achieves a charging and travelling interlocking function and has the advantages of safety and reliability.

Description

【Technical field】 [0001] The invention relates to the field of electric vehicles, in particular to a charging and running interlock device for electric vehicles. 【Background technique】 [0002] With the development of technologies such as batteries and electronic control, the advantages of pure electric vehicles have become more and more obvious. At the same time, the safety performance of pure electric vehicles has also received sufficient attention. For example, high-voltage safety during driving and charging. When driving, the connection between the charging port and the power battery must be cut off; while charging, the high voltage related to driving must also be cut off. [0003] Most of the driving charging interlocks currently used in electric vehicles use the control unit to control the relay to pull in, so as to achieve the purpose of charging driving interlocking. If the control unit signal fails, the driving charging interlocking cannot be guaranteed, resulting i...

Claims

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Application Information

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IPC IPC(8): B60L3/00B60L11/18
CPCY02T10/7016Y02T10/70
Inventor 陈子晃
Owner SOUEAST
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