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Motor controller

A technology of motor controllers and control boards, applied in the direction of AC motor control, control systems, electrical components, etc., can solve the problems of low power density, large control volume, etc., and achieve short circuit links, efficient signal transmission, and compact structure Effect

Active Publication Date: 2014-04-16
JING JIN ELECTRIC TECHNOLOGIES (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a motor controller, which solves the technical problems of large control volume and low power density of the existing motor controller through structural improvement

Method used

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Embodiment

[0027] see Figure 1-Figure 3 , this embodiment discloses a motor controller, the controller includes a box body 100, each functional component of the motor controller is installed inside or outside the box body 100 in a specific positional relationship, Furthermore, the functional components of the motor controller are compactly integrated through the box body 100 , which further realizes a simpler and more efficient electrical connection of the functional components and improves the power density of the motor controller.

[0028] Specifically, the box body 100 is preferably provided with a rectangular body, so as to be installed on equipment such as electric buses, and, in order to improve the convenience of disassembling and assembling the various components inside the box body 100, the preferred The box body 100 includes a box body 101 and a box cover 102. The box body 101 is a rectangular body with an opening, and its inside and outside are respectively used for fixing an...

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Abstract

The invention discloses a motor controller which comprises a box body, a three-phase connector, a two-phase connector, a signal connector, an IGBT module and the like. The three-phase connector, the two-phase connector and the signal connector are fixed to the outer portion of the box body, and the IGBT module is fixed in the box body. The three-phase connector, the two-phase connector and the signal connector are installed on the same side wall of the box body. The IGBT module is installed on a bottom plate of the box body. A drive board, a control board and an absorbing board are sequentially arranged above the IGBT module from bottom to top. The two opposite sides of the IGBT module are provided with an AC busbar and a DC busbar respectively, the AC busbar is adjacent to the three-phase connector, and a capacitor is arranged between the DC busbar and the box body side wall adjacent to the DC busbar. According to the motor controller, due to the fact that the structure of the controller is improved, the technical problems that an existing motor controller is large in control size and low in power density are solved.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a motor controller. Background technique [0002] At present, motor controllers are all designed with electrolytic DC support capacitors, industrial-grade IGBTs, and scattered and complex layouts. Therefore, they generally have defects such as large controller volume, weight, and low power density. When this type of motor controller is applied to a high-power electric vehicle, such as an electric bus, it will inevitably affect the performance of the entire vehicle. [0003] Among them, IGBT (English full name Insulated Gate Bipolar Transistor) refers to an insulated gate bipolar transistor, which is a composite full-controlled voltage-driven power transistor composed of BJT (bipolar transistor) and MOS (insulated gate field effect transistor). It is a semiconductor device with the characteristics of high input impedance of MOSFET and low conduction voltage drop of GTR. [0004] ...

Claims

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Application Information

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IPC IPC(8): H02K11/00H02K11/02H02M1/44H02P27/00
Inventor 白继荣宁晓琪张正兴张洁杜春雨尚海宪
Owner JING JIN ELECTRIC TECHNOLOGIES (BEIJING) CO LTD
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