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Converter device used for performing driving control on electric vehicle

A drive control, electric vehicle technology, applied in the output power conversion device, the conversion of AC power input to DC power output, electrical components, etc., can solve the problem of increasing the size and cost of the driver, and reducing the efficiency of the converter. There is no disclosure or suggestion to solve the problem. Measures to solve this problem, etc., can reduce the distributed inductance of the busbar, improve the impact of short-term overload current, and be conducive to the effect of current sharing.

Inactive Publication Date: 2013-10-23
SHANGHAI NENGNENG ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned literature does not mention this problem, and does not disclose or suggest measures to solve this problem
[0004] Japanese patent JP2001-16870 needs a fan to help dissipate heat, which will inevitably increase the size and cost of the driver, and will also reduce the efficiency of the converter

Method used

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  • Converter device used for performing driving control on electric vehicle
  • Converter device used for performing driving control on electric vehicle
  • Converter device used for performing driving control on electric vehicle

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Embodiment Construction

[0036] In order to better understand the technical solutions of the present invention, specific embodiments will be described in detail below in conjunction with the accompanying drawings.

[0037] see Figure 1 to Figure 10, the converter device for electric vehicle driving control of the present invention comprises a cooling base plate 1, three bridge arms arranged in parallel on the cooling base plate 1, a positive pole terminal 9, a negative pole terminal 10, and a controller circuit board 11 and two current transformers 12a, 12b.

[0038] The cooling bottom plate 1 is connected to an aluminum shell, and three grooves 1a, 1b, and 1c are provided on the cooling bottom plate 1 at uniform intervals and transversely parallel from front to back; The U-shaped upper cover 2 and the left and right cover plates 3, 4 respectively fixed on the two sides of the upper cover 2 and the cooling bottom plate 1, wherein the front, middle and rear parts of the left cover plate 3 respectivel...

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Abstract

The invention discloses a converter device used for performing driving control on an electric vehicle, wherein the converter device is good in cooling effect, small in volume, high in conducting capacity and high in reliability. The converter device comprises a cooling base plate and three bridge arms arranged on the cooling base plate in parallel; each bridge arm comprises an upper bridge arm, a lower bridge arm, a driving circuit board, a cathode copper bar plate and an electrolytic capacitor; an upper bridge arm metal bar and a lower bridge arm metal bar of each bridge arm are fixed on the cooling base plate; the lower surfaces of the upper bridge arm metal bar and the lower bridge arm metal bar are respectively adhered to the upper surface of the cooling base plate through a conduction insulating pad; the lower surfaces of metal outer housings of all upper bridge arm MOS (Metal Oxide Semiconductor) tubes and lower bridge arm MOS tubes are respectively adhered to the upper surfaces of the upper bridge arm metal bar and the lower bridge arm metal bar; three pins of each upper bridge arm MOS tube all face to the lower bridge arm metal bar; all lower bridge arm MOS tubes are staggered with the opposite upper bridge arm MOS tubes at an effective interval L and arranged on the lower bridge arm metal bar; three pins of each lower bridge arm MOS tube all face to the upper bridge arm metal bar.

Description

technical field [0001] The invention relates to a device composed of power semiconductor elements, in particular to a converter device used for drive control of electric vehicles. Background technique [0002] Electric vehicles must be safe and reliable in long-term operation. However, in terms of heat dissipation and performance stability, the converters and motors driven by vehicles with higher power in mobile vehicles for road transportation and off-road transportation have higher requirements than converters and motors driven by low-power drives. The current market The high-power controller technology in the world is not perfect, especially in terms of high reliability and miniaturization. In the converter devices currently on the market, the general PCB board is made of FR4 substrate, and its thermal conductivity is 0.8W / mK, so its thermal conductivity is very small and its thermal resistance is large. If less heat-resistant electronic components (such as capacitors) ...

Claims

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Application Information

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IPC IPC(8): H02M7/00
Inventor 徐鸣谦李民旭彭昌宗萧子渊彭健强袁佳
Owner SHANGHAI NENGNENG ELECTRIC VEHICLE
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