Intelligent power module, electric control assembly and air conditioner

A technology of intelligent power modules and electronic control components, which is applied in the direction of electrical components, output power conversion devices, and conversion of AC power input to DC power output. It can solve problems such as false triggering, long wiring, and increased parasitic inductance.

Pending Publication Date: 2022-06-07
CHONGQING MIDEA REFRIGERATION EQUIP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in an intelligent power module with a current detection pin, the current detection pin is set on the low-voltage side, and an ex

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  • Intelligent power module, electric control assembly and air conditioner
  • Intelligent power module, electric control assembly and air conditioner
  • Intelligent power module, electric control assembly and air conditioner

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Embodiment Construction

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] The present invention provides an intelligent power module.

[0038] refer to Figure 1 to Figure 3 , in an embodiment of the present invention, the intelligent power module 100 includes:

[0039] an installation substrate (not shown in the figure), the two sides along the length direction of the installation substrate have opposite mounting sides of the high-current pins and the mounting sides of the weak-current pins; the surfac...

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Abstract

The invention discloses an intelligent power module, an electric control assembly and an air conditioner. The intelligent power module comprises an installation substrate, and a strong current pin installation side and a weak current pin installation side which are oppositely arranged are arranged on the two sides in the length direction of the installation substrate; a plurality of mounting positions are arranged on the surface of the mounting substrate; the inverter power module and the driving chip are mounted on the corresponding mounting positions, and the inverter power module is electrically connected with the driving chip; the low-voltage reference pin, the current detection pin and the single-point grounding pin are arranged on the strong current pin mounting side; wherein the low-voltage reference pin is connected with the output end of the inverter power module, and the low-voltage reference pin is further used for being connected with the single-point grounding pin through the external current detection resistor; the current detection pin is electrically connected with the low-voltage reference pin; and the single-point grounding pin is connected with the grounding end of the driving chip. The problem that the intelligent power module is poor in reliability due to the fact that overcurrent protection of the intelligent power module is prone to false triggering is solved.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to an intelligent power module, an electronic control assembly and an air conditioner. Background technique [0002] In an intelligent power module, only one ground pin of the driver chip is usually set, and it is usually located on the low-voltage side, while the ground terminal of the power switch tube is usually located on the high-voltage side. However, each switch tube of the power module, such as the IGBT emitter, is set on the high-voltage side. Therefore, when a single-point grounding is realized, the grounding pins of the low-voltage side and the high-voltage side are far apart. In addition, in an intelligent power module provided with a current detection pin, the current detection pin is set on the low-voltage side, and an external lead is required to be connected to the IGBT emitter, resulting in too long wiring, increased parasitic inductance, and even false ...

Claims

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Application Information

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IPC IPC(8): H02M7/00H02M7/5387F24F11/88F24F11/89
CPCH02M7/003H02M7/53875F24F11/88F24F11/89
Inventor 苏宇泉
Owner CHONGQING MIDEA REFRIGERATION EQUIP CO LTD
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