A kind of power module, frequency converter and power module manufacturing method

A technology of a power module and a manufacturing method, which is applied in the field of frequency converters, can solve the problems of complex structures of power units and frequency converters, damage to power units, and large occupied space, so as to achieve improved electrical clearance and creepage distance, high insulation level, and high occupancy. small space effect

Active Publication Date: 2020-04-17
QINGDAO CCS ELECTRIC CORP
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Problems solved by technology

[0004] However, compared with the original power components, the power components with a higher insulation level are bulky and costly, so replacing the power components with a higher insulation level will cause the structure of the entire power unit and the frequency converter to be complicated and take up much space. The space is large and the cost is expensive; in addition, if the method of replacing power components with higher insulation levels is not adopted, the power unit will be seriously damaged due to excessive inter-stage voltage

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  • A kind of power module, frequency converter and power module manufacturing method
  • A kind of power module, frequency converter and power module manufacturing method
  • A kind of power module, frequency converter and power module manufacturing method

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Embodiment Construction

[0037] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

[0038] In the description of the present invention, it should be noted that the horizontal direction described in the present invention is figure 1 The horizontal direction, the vertical direction of the present invention is figure 1 The vertical direction shown, the vertical in the present invention is perpendicular to figure 1 while the terms "inner", "outer", "upper", "lower", "left", "right", "front", "rear" etc. indicate orientation or positional relationships based on the attached figure 2 The positional relationship shown is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or elemen...

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Abstract

The invention provides a power module, a frequency converter using the power module, and a manufacturing method of the power module. The power module includes a power unit which is arranged vertically. The power module further includes an insulating frame and an insulating plate. The insulating frame is arranged vertically. The insulating plate is disposed at the bottom of the insulating frame and fixedly connected with the insulating frame. A cavity is formed between the insulating plate and the insulating frame. The power unit is fixedly arranged in the cavity. The cavity is filled with an insulating glue layer. The insulating glue layer is arranged in a closed-loop manner around the power unit. The inner surface of the insulating glue layer is attached to the power unit. The outer surface of the insulating glue layer is attached to the insulating frame and the insulating plate. The power module has the advantages of high insulation grade, good overall thermal conductivity, simple structure, little space occupation and low cost.

Description

technical field [0001] The invention belongs to the technical field of motor control equipment, and in particular relates to a power module, a frequency converter using the power module, and a manufacturing method of the power module. Background technique [0002] The frequency converter is a power control device that uses frequency conversion technology and microelectronics technology to control the AC motor by changing the frequency of the motor's working power supply, and the power unit is the main part of the main circuit of the high-voltage frequency converter. [0003] Existing power units are mostly used in low-voltage (for example, below 6000V) frequency converters, which adopt a cascaded structure, and require less voltage insulation between stages. Usually, if the existing power unit needs to meet the needs of a high-voltage (for example, above 6000V) frequency converter, it needs to replace the power element with a higher insulation level to adapt to the high-volt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/00H05K7/20
CPCH02M1/00H05K7/20927
Inventor 宋承林刘锡安张鸿波
Owner QINGDAO CCS ELECTRIC CORP
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