Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Power module, electric control box and air conditioner

A power module, piezoelectric technology, applied in the direction of electric solid devices, circuits, electrical components, etc., can solve problems such as difficult power module detection, and achieve the effect of reducing difficulty and low cost

Active Publication Date: 2019-10-25
WUHU MATY AIR CONDITIONING EQUIP CO LTD +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of inspection method using X-ray inspection equipment makes it difficult to inspect the power module after it is installed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power module, electric control box and air conditioner
  • Power module, electric control box and air conditioner
  • Power module, electric control box and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second" and ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a power module, an electric control box, and an air conditioner. The power module comprises a substrate, a wiring board and a transistor welded on the wiring board, wherein thesubstrate, the wiring board and the transistor are sequentially disposed from the bottom to the top. A potential measurement region which is exactly opposite to the transistor is disposed between thesubstrate and the wiring board. The power module also comprises a piezoelectric potential measurement module located in the potential measurement region, and the piezoelectric potential measurement module comprises a plurality of potential measurement units which are arranged at intervals. Each potential measurement unit comprises a piezoelectric image unit, a first electrode piece and a second electrode piece, wherein the first electrode piece and the second electrode piece are respectively disposed at two ends of the potential measurement unit and are electrically connected with the potential measurement unit, the first electrode piece is connected with a first pin, and the second electrode piece is connected with a second pin. The power module provided by the invention can reduce the difficulty of a welding hole detection test of the power module so that a user carries out the operation of the welding hole detection test.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a power module, an electric control box and an air conditioner. Background technique [0002] The power module is mainly used in the main circuit inverter of the frequency converter and all inverter circuits, that is, in DC / AC conversion. In particular, IGBT power modules are widely used in inverters for household appliances because of their simple control circuit, low switching loss, fast on-off speed, and high operating frequency. like figure 1 As shown, in the production and manufacture of the power module, it is necessary to solder the transistor 150 on the surface of the wiring board 120 of the substrate 110 through soldering, and it is easy to generate a soldering void 400 in the solder layer 140 during the soldering process. The existence of the soldering void 400 makes the transistor 150 The thermal resistance between the substrate and the substrate increases, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01L23/544
CPCH01L22/34
Inventor 毕晓猛冯宇翔
Owner WUHU MATY AIR CONDITIONING EQUIP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com