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Power inverting module

A power module and inverter technology, applied in the electrical field, can solve the problems of large number of circuit boards, inconvenient plugging and unplugging of low-voltage connectors, and large space occupation, so as to achieve integration, improve maintainability, and reduce quantity

Active Publication Date: 2014-07-09
CRRC YONGJI ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an inverter power module, which solves the problems in the prior art that the number of circuit boards is large, occupies a large space, and the low-voltage connector is inconvenient to plug and unplug, realizes the integration of circuit boards, and reduces the number of circuit boards. Improved maintainability of circuit devices

Method used

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Embodiment Construction

[0015] figure 1 It is a schematic diagram of the circuit structure of the inverter power module provided by the embodiment of the present invention, figure 2 It is a schematic diagram of the external structure of the inverter power module provided by the embodiment of the present invention, image 3 It is a schematic diagram of the internal structure of the inverter power module provided by the embodiment of the present invention, Figure 4 It is a schematic structural diagram of the low-voltage connector in the inverter power module provided by the embodiment of the present invention, Figure 5 for image 3 Schematic diagram of the structure of the A region, Image 6 for Figure 5 The decomposition diagram. Such as Figure 1-6 As shown, the inverter power module includes a three-phase inverter circuit, a drive circuit and a low-voltage connector.

[0016] The driving circuit includes a photoelectric conversion board and a driving board, and the photoelectric conversio...

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Abstract

The invention provides a power inverting module which comprises a three-phase inverting circuit, a drive circuit and a low-voltage connector. The drive circuit comprises a photovoltaic conversion board and drive boards. The photovoltaic conversion board is provided with three pairs of optical fiber plugs which are connected with the three drive boards and used for driving three power devices of bridge arms on the same side in the three-phase inverting circuit. The power inverting module can solve the problems that in the prior art, the number of circuit boards is large, occupied space is large, and a low-voltage connector is inconvenient to plug and pull, integration of circuit boards is achieved, the number of the circuit boards is reduced, and the maintainability of a circuit device is improved.

Description

technical field [0001] The invention relates to electrical technology, in particular to an inverter power module. Background technique [0002] The inverter power module is the core component of the electric locomotive traction system. It usually uses an insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT) to form a three-phase inverter circuit to convert the DC voltage into an adjustable voltage amplitude and frequency. Three-phase AC output, providing three-phase AC power for the traction motor. The inverter power module is also provided with a drive circuit and a low-voltage connector for providing a forward gate voltage or a reverse gate voltage to control the on-off of the IGBT. The driving circuit includes a driving board and a photoelectric conversion board, wherein the photoelectric conversion board performs photoelectric conversion on the electrical signal sent by the controller of the inverter power module, and provides a 24V DC signal to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/48
Inventor 尹梅张晋芳冷丽英刘志敏
Owner CRRC YONGJI ELECTRIC CO LTD
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