Power module and frequency converter

A technology of power modules and power components, applied in the field of motor control equipment, can solve the problems of complex structure of power units and frequency converters, damage to power units, and large space occupation, so as to improve electrical clearance and creepage distance, and ensure low cost. , the effect of taking up less space

Active Publication Date: 2017-11-03
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 conve

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  • Power module and frequency converter
  • Power module and frequency converter
  • Power module and frequency converter

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Example Embodiment

[0030] Hereinafter, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially combined in other embodiments without further recitation.

[0031] In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", "left", "right", etc. indicate the orientation or position The relationship is based on the attachment figure 2 , attached Figure 5 , attached Figure 8 and attached Figure 9 The shown positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention Based on the above, t...

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Abstract

The invention puts forward a power module comprising a plurality of power elements and a support plate for supporting the power elements, wherein the plurality of power elements are interconnected and are fixed above the support plate, the power elements are provided with insulating plates that are arranged along a transverse side part, the insulating plates are fixed on the support plate, an insulating layer is arranged between the support plate and the power elements, a bottom part of the insulating layer is adhered and fixedly connected to a top part of the support plate, and a top part of the insulating layer is connected to the power elements and the insulating plates in a pressed manner. The power module disclosed in the invention is high in insulation grade, simple in structure, small in occupied space and low in cost.

Description

technical field [0001] The invention belongs to the technical field of motor control equipment, and in particular relates to a power module and a frequency converter. 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-voltage environment. [0004] However, compared with the original power...

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Application Information

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IPC IPC(8): H02M1/00H05K7/20
CPCH02M1/00H05K7/20927
Inventor 刘锡安马付湾宋承林安郁熙张鸿波
Owner QINGDAO CCS ELECTRIC CORP
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