Intelligent power module, air conditioner controller and air conditioner

An intelligent power module and control circuit technology, which is applied to output power conversion devices, electrical components, emergency protection circuit devices, etc. The effect of avoiding shock, improving reliability, and improving accuracy

Active Publication Date: 2018-07-13
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide an intelligent power module, an air conditioner controller and an air conditioner. Shock affects the working reliability of its modules

Method used

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  • Intelligent power module, air conditioner controller and air conditioner
  • Intelligent power module, air conditioner controller and air conditioner
  • Intelligent power module, air conditioner controller and air conditioner

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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0038] refer to image 3 , image 3 The structural schematic diagram of the IPM module 4100 provided for the first embodiment of the present invention only shows the parts related to the embodiment of the present invention for the convenience of description.

[0039] In this embodiment, the IPM module 4100 includes a three-phase upper bridge arm IGBT tube and a three-phase lower bridge arm IGBT tube, and corresponds to each IGBT tube in the three-phase upper bridge arm IGBT tube and the three-phase lower bridge arm IGBT tube Th...

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PUM

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Abstract

The invention provides an intelligent power module, an air conditioner controller and an air conditioner. According to the intelligent power module, a detecting circuit, an upper bridge overcurrent control circuit and a lower bridge overcurrent control circuit are arranged inside, a sampling resistor is converted into a build-in mode, when the driving load of the intelligent power module is over current, the voltage signals of the sampling resistor during overcurrent can be fed back in a delayed mode, so that filtering voltage noise can be achieved, and the overcurrent detecting accuracy can be improved; meanwhile, during overcurrent, the upper bridge overcurrent control circuit controls to cut off a three-phase upper bridge IGBT (insulated gate bipolar transistor); during overcurrent andwhen the ambient temperature is lower than a preset value, the lower bridge overcurrent control circuit controls to connect a three-phase lower bridge IGBT to effectively release induced charge generated by a load driven by the intelligent power module (IPM), so that impact caused by residue charge on the IGBT can be avoided, and the reliability of the IPM can be enhanced.

Description

technical field [0001] The invention relates to the technical field of intelligent power modules, in particular to an intelligent power module, an air conditioner controller and an air conditioner. Background technique [0002] Intelligent Power Module, namely IPM (Intelligent Power Module, Intelligent Power Module), is a power drive product that combines power electronics and integrated circuit technology. The intelligent power module integrates the power switching device and the high-voltage driving circuit, and is equipped with fault detection circuits such as overvoltage, overcurrent and overheating inside. On the one hand, the intelligent power module receives the control signal from the MCU to drive the subsequent circuit to work, and on the other hand, it sends the system status detection signal back to the MCU. Intelligent power modules are especially suitable for frequency converters and various inverter power supplies for driving motors. They are ideal power elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/12H02M1/32
CPCH02H7/12H02M1/32
Inventor 冯宇翔
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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