Mixed drive motorcar power control device and its protection method

Abstract

The invention discloses a mixed power automobile power control device and protection method, the high voltage parts (5) of the mixed power automobile power is set in the control box (1), reed switch (3) is set on bottom of the control box (1), the reed switch (3) can be acted by magnetism, raised magnet seat (12) is set on inner surface of protection cover (2) of opening of the control box (1), it is aligned with reed switch (3), magnet (4) is set on surface of magnet seat (12) towards reed switch (3). The invention can separate dangerous area of high voltage circuit, and uses precise reed switch inducing mode, user can be protected from threaten of high voltage reliably. The invention possesses characters that control is reliable, speed of response is quick, and cost is low, maintenance is convenient.

Description

technical field [0001] The invention belongs to the technical field of automobile structure, and relates to a power supply system of a hybrid electric vehicle. More specifically, the invention relates to a power supply control device of a hybrid electric vehicle. In addition, the present invention also relates to the protection method adopted by the control device. Background technique [0002] At present, DC high-voltage power supply is more common and widely used in hybrid electric vehicle technology. Therefore, the safety protection of DC high-voltage field is becoming an important issue that must be considered in the development of hybrid electric vehicle technology. For high-voltage protection, it is necessary to consider the possible damage of high-voltage electricity to users and the impact caused by possible damage to high-voltage parts (such as vehicle accidents). [0003] At present, the high-voltage direct current used in hybrid electric vehicles is enough to cau...

AI Technical Summary

Problems solved by technology

But for non-professionals, especially ordinary car users, without professional training, they are the people who need protection

[0005] Most of the designs of hybrid power supplies ignore the protection of non-professionals, and some structural designs only set high-voltage warning signs; among them, some designs do not effectively isolate high-voltage components, and users are easily exposed to high-voltage power supplies. components, especially after the vehicle is vibrated or damaged; in addition, if the high voltage is not effectively protected, the risk of a vehicle accident will be greatly increased

In another part of the structural design, a mechanical switch is used. When the user wants to operate the relevant high-voltage part, he needs to cut off the relevant switch first; this design can improve the safety protection level for professional maintenance personnel, but it does not help Protection for ordinary users and protection after vehicle accidents

[0006] In addition, due to the damage of the controller and high-voltage components caused by the collision of the car, the short-circuit of the high-voltage part and the connection between the high-voltage part and the body will cause great harm to the personnel at the scene of the car accident; It is easy to cause the battery and fuel tank to catch fire or even explode, and secondary disasters such as vehicle accidents will occur, causing more serious consequences.

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