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Power conversion device

A power conversion device and conductor technology, which is applied in the output power conversion device, high-efficiency power electronic conversion, conversion of DC power input to DC power output, etc. , Suppression of surge voltage and ensure the effect of miniaturization

Active Publication Date: 2020-02-21
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the expansion of the installation area is inevitable, and there is a problem that it is difficult to miniaturize

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0058] Figure 1A It is a configuration diagram showing the circuit configuration of the power conversion device according to Embodiment 1 of the present invention. Figure 1B It is a plan view showing the structure of the first conductor and the second conductor provided in the power conversion device according to Embodiment 1 of the present invention, Figure 1C yes Figure 1B A-A cutaway view.

[0059] Such as Figure 1A As shown, the power conversion device is composed of a primary side circuit 1 , a secondary side circuit 2 , and an isolation transformer 107 provided between the primary side circuit 1 and the secondary side circuit 2 .

[0060] In the primary side circuit 1 , an input capacitor 100 , a first switching element 101 , a second switching element 102 , a third switching element 103 and a fourth switching element 104 are provided. The input capacitor 100 is connected in parallel to a subsequent stage of the input voltage Vin. The first switching element 101 ...

Embodiment approach 2

[0090] The overall configuration of the power conversion device according to Embodiment 2 of the present invention is the same as that described above. Figure 1A The structure of Embodiment 1 shown is the same.

[0091] Figure 4A ~ Figure 4D It is a schematic configuration diagram showing the configuration of the first conductor 105 and the second conductor 106 provided in the power conversion device according to Embodiment 2 of the present invention. In the above-mentioned embodiment 1, such as Figure 1B and Figure 1C As shown, the first conductor 105 and the second conductor 106 are wired on a single surface of the insulating substrate 301, but in Embodiment 2, as Figure 4A ~ Figure 4D As shown, the first conductor 105 and the second conductor 106 are wired on both surfaces of the insulating substrate 301 .

[0092] In addition, the first conductors 105 wired on both surfaces of the insulating substrate 301 are electrically connected to each other through the via hol...

Embodiment approach 3

[0105] The overall configuration of the power conversion device according to Embodiment 3 of the present invention is the same as that described above. Figure 1A The structure of Embodiment 1 shown is the same.

[0106] Figure 5A ~ Figure 5D It is a schematic configuration diagram showing the configuration of the first conductor 105 and the second conductor 106 provided in the power conversion device according to Embodiment 3 of the present invention. In Embodiment 2 above, the insulating substrate 301 is a single layer, and the first conductor 105 and the second conductor 106 are wired in two layers, while in Embodiment 3, the insulating substrate 301 has a structure of more than two layers, and the first conductor 105 and The second conductor 106 is also wired in two or more layers. That is, in Embodiment 3, such as Figure 5A ~ Figure 5D As shown, a plurality of insulating substrates 301 are stacked. In addition, the first conductor 105 and the second conductor 106 are...

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PUM

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Abstract

A power conversion device comprises an insulating transformer (107) having a first winding and a second winding; switch elements (101-104) connected to the first winding of the insulating transformer(107); a first conductor (105) that connects one end of the first winding of the insulating transformer (107) and the switch elements (101, 102); and a second conductor (106) that connects the other end of the first winding of the insulating transformer (107) and the switch elements (103, 104). The first conductor (105) and the second conductor (106) are disposed mutually parallel on an insulatingsubstrate (301) and so as not to overlap each other.

Description

technical field [0001] The present invention relates to a power conversion device, and more particularly to a power conversion device including a semiconductor switching element and an isolation transformer. Background technique [0002] Like motor vehicles driven by engines, electric vehicles and hybrid vehicles include auxiliary batteries for control circuits that operate electrical equipment. However, since an electric vehicle does not have an engine as a driving source, it is naturally impossible to use an alternator driven by the engine. In addition, hybrid vehicles employ an idle stop system (a system that automatically stops the engine when the vehicle stops, such as at an intersection waiting for traffic lights) to reduce fuel consumption and reduce exhaust emissions, so the alternator cannot be used in this case as well. Therefore, in electric vehicles and hybrid vehicles, a power conversion device such as a step-down converter is required to supply the energy of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/48
CPCH02M7/003H02M3/33523H02M3/33592Y02B70/10H05K1/115H05K1/165H05K1/0306H02M1/0064H02M3/003H01F27/32
Inventor 薮内直也
Owner MITSUBISHI ELECTRIC CORP