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Bus system for inverter and inverter

A busbar system and inverter technology, applied in the direction of converting irreversible DC power input into AC power output, converting equipment structural parts, converting AC power input into DC power output, etc., can solve the problem of insulated gate bipolar transistors Affects the performance of the inverter inverter, does not fully consider issues such as stray inductance and electromagnetic interference, to achieve the effect of reducing stray inductance, reducing the risk of high voltage breakdown, and reducing electromagnetic interference

Pending Publication Date: 2020-11-20
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the inverters of the above-mentioned prior art, the bus bar is only used to connect and transmit DC current, and the stray inductance and electromagnetic interference in the process of transmitting DC current are not fully considered, and high stray inductance may lead to insulated gate bipolar Transistors are broken down by high voltage and electromagnetic interference may affect other electronic components of the inverter and the performance of the inverter

Method used

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  • Bus system for inverter and inverter
  • Bus system for inverter and inverter
  • Bus system for inverter and inverter

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Embodiment Construction

[0023] The exemplary embodiments of the present invention are described below with reference to the drawings. It should be understood that these specific descriptions are only used to teach those skilled in the art how to implement the present invention, not to exhaust all possible ways of the present invention, nor to limit the scope of the present invention.

[0024] Such as Figure 2a to Figure 2d As shown, in an inverter bus system according to an embodiment of the present invention, a first bus assembly 1 for transmitting a DC current from a DC power supply (not shown) to a DC support capacitor C of the inverter and a For the second bus bar assembly 2 that transmits DC current from the DC support capacitor C to the insulated gate bipolar transistor (not shown) of the inverter.

[0025] In this embodiment, as Figure 2a to Figure 2c As shown, the first bus bar assembly 1 includes a positive DC bus 11, a negative DC bus 12, a first insulating portion 13, a magnetic ring 14 and ...

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Abstract

The invention provides a bus system for an inverter and the inverter. The bus system for the inverter comprises a positive electrode direct current bus and a negative electrode direct current bus which are used for transmitting a direct current from a direct current power supply to a direct current support capacitor of the inverter, and further comprises an insulating part and a magnetic ring. Thepositive electrode direct current bus and the negative electrode direct current bus are partially stacked together in the thickness direction of the positive electrode direct current bus and the negative electrode direct current bus with the insulating part therebetween, and the magnetic ring sleeves the insulating part and the overlapping part of the positive electrode direct current bus and thenegative electrode direct current bus. Therefore, according to a direct-current bus laminated structure of the bus system for the inverter, a stray inductance can be reduced so that a risk that the insulated gate bipolar transistor is broken down by a high voltage is reduced; and in addition, the magnetic ring can be used as an electromagnetic interference filter of the direct-current bus laminated structure so that an electromagnetic interference between the positive electrode direct current bus and the negative electrode direct current bus is reduced.

Description

Technical field [0001] The present invention relates to a conductive bus bar layout, and more particularly to a bus bar system for an inverter and an inverter including the bus bar system. Background technique [0002] In the inverter of the prior art that converts direct current into alternating current, such as figure 1 As shown, the bus includes a positive DC bus 10 and a negative DC bus 20, which are used to transfer the DC current from the DC power supply to the DC support capacitor C and then to an insulated gate bipolar transistor (IGBT) not shown in the figure. In the above-mentioned inverters of the prior art, the bus bar is only used to connect and transmit DC current, and the stray inductance and electromagnetic interference in the process of delivering DC current are not fully considered, and the high stray inductance may cause the insulated gate bipolar type The transistor is broken down by high voltage and electromagnetic interference may affect other electronic com...

Claims

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Application Information

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IPC IPC(8): H02M7/00H02M1/44H02M1/32H02M7/42
CPCH02M1/32H02M1/44H02M7/003H02M7/42
Inventor 王超
Owner SCHAEFFLER TECH AG & CO KG
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