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Electric automobile high voltage distribution box

A technology for high-voltage power distribution boxes and electric vehicles, which is applied in substation/power distribution device shells, vehicle components, circuits or fluid pipelines, etc., and can solve the problems of not having dustproof and waterproof functions, low safety performance, and electric leakage injury, etc. problems, to achieve good waterproof and dustproof effects, low production costs, and reduce power consumption

Inactive Publication Date: 2014-11-19
SICHUAN YONGGUI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method has a simple structure, it does not have dustproof and waterproof functions, and has low safety performance. During use or later maintenance, it is easy to cause electric shock or electric leakage to hurt people.

Method used

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  • Electric automobile high voltage distribution box
  • Electric automobile high voltage distribution box
  • Electric automobile high voltage distribution box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] see Figure 1-2 , a high-voltage power distribution box for electric vehicles, including a box body made of aluminum alloy die-casting, a box cover, and a foam sealing rope embedded in the box cover, the box body, box cover, and foam sealing rope form a sealing structure . Outside the box, there are charger connection port 2, DC voltage converter (DC / DC) connection port 3, motor controller positive connection port 4, air conditioner and battery positive connection port 5, motor controller negative connection port 6, battery negative Connect to port 7. Inside the box is a high-voltage power distribution module. The high-voltage power distribution module includes a control unit, a pre-charging unit, and a power distribution unit. The control unit includes a main relay 8. The pre-charging unit includes a pre-charging relay 10, a pre-charging resistor 11, and a power distribution unit. It includes a bus adapter 28 , a main circuit short circuit protector 22 , and branch c...

Embodiment 2

[0027] see Figure 1-2 , a high-voltage power distribution box for electric vehicles, including a box body and a box cover made of aluminum alloy die-casting, a mounting groove is provided in the box cover, a foam sealing rope is embedded in the box cover mounting groove, the box body, the box cover , Foam sealing rope constitutes a sealing structure. Outside the box, there are low-voltage signal control connection port 1, charger connection port 2, DC voltage converter (DC / DC) connection port 3, motor controller positive connection port 4, air conditioner and battery positive connection port 5, motor controller Connect the negative pole to port 6 and the negative pole of the battery to port 7. Inside the box is a high-voltage power distribution module. The high-voltage power distribution module includes a control unit, a pre-charging unit, and a power distribution unit. The control unit includes a main relay 8. The pre-charging unit includes a pre-charging relay 10, a pre-ch...

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Abstract

The invention discloses a high voltage distribution box for an electric vehicle. The high voltage distribution box comprises a box body, a box cover, and a foam sealing rope embedded in the box cover. A sealed structure is formed by the body, the box cover, and the foam sealing rope. The external part of the box body is provided with a plurality of wire connection ports. The internal part of the box body is provided with a high voltage distribution module which comprises a control unit, a pre-charging unit and a power supply distribution unit. The control unit comprises a main relay. The pre-charging unit comprises a pre-charging relay and a pre-charging resistor. The power supply distribution unit comprises a confluence switchover piece, a trunk short circuit protector and a branch short circuit protector. According to the electric automobile high voltage distribution box, the degree of integration is high, the size of a high voltage power distribution box is reduced, while the high voltage large current energy transmission control is realized, the function of the short circuit protection for a main circuit in overloading is achieved, the reliability and safety of an electrical vehicle high voltage electrical control system are effectively raised, the high voltage distribution box has good waterproof and dustproof effects, the assembly is reasonable, the power distribution is reasonable, and the power supply loss can be reduced.

Description

technical field [0001] The invention belongs to the field of high-voltage electrical systems of new energy electric vehicles; in particular, it relates to a high-voltage power distribution box for electric vehicles. Background technique [0002] With the increasingly serious environmental problems and energy crisis, new energy vehicles have emerged in this context. New energy vehicles are mainly powered by the battery system, and the energy transmission of the entire system is carried out by the high-voltage electrical system. The high-voltage power distribution box is the core component of the high-voltage electrical system of electric vehicles. Its main function is to control the on-off of the internal high-voltage relay through the external low-voltage control circuit, and to drive the high-voltage DC power supply of the power battery according to the internal design circuit of the high-voltage power distribution box. It is connected with a series of high-voltage compone...

Claims

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Application Information

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IPC IPC(8): H02B1/28H02B1/24B60R16/02
Inventor 陈昌俊
Owner SICHUAN YONGGUI SCI & TECH CO LTD
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