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Base plates, electric compressors and air conditioners

A substrate and base technology, used in electrical components, machines/engines, mechanical equipment, etc., can solve the problems of inability to electrically connect the circuit substrate and the shell, poor conduction, etc., and achieve the effect of suppressing poor conduction.

Active Publication Date: 2020-08-07
MITSUBISHI HEAVY IND THERMAL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Flux flows out to the pad, causing poor continuity due to the flux
As a result, even if the circuit board and the case are fixed by screws, there is a possibility that the circuit board and the case cannot be electrically connected.

Method used

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  • Base plates, electric compressors and air conditioners
  • Base plates, electric compressors and air conditioners
  • Base plates, electric compressors and air conditioners

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Below, based on figure 1 and figure 2 A substrate according to an embodiment of the present invention will be described.

[0029] The substrate (Printed Circuit Board, PCB) is equipped with components with large heat capacity that need to be soldered using flux. The substrate of the present embodiment is, for example, a circuit board 1 for power conversion mounted on an electric compressor used in an air conditioner mounted on a vehicle (car air conditioner). The circuit board 1 for power conversion is a circuit board constituting an inverter that converts DC power supplied from the outside through input terminals into three-phase AC power. Here, the power conversion circuit board 1 of the present embodiment is integrally mounted on the electric compressor together with an AC motor that operates based on the three-phase AC power output from the power conversion circuit board 1 . The electric compressor (circuit board 1 for power conversion) receives input of DC powe...

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PUM

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Abstract

The substrate includes: a substrate main body (10); a flux coating part (20), which is coated with flux that promotes solder fluidity on the surface of the substrate main body (10); a conduction part (30), the conduction The part and the flux application part (20) are separately arranged on the surface of the substrate main body (10), the conduction part can be conducted; and the silk screen part (50), the silk screen part is arranged on the surface of the substrate main body (10) Between the coating part (20) and the conduction part (30), the silk screen part is provided by screen printing.

Description

technical field [0001] The present invention relates to a base plate, an electric compressor and an air conditioner. [0002] This application claims priority to Japanese Patent Application No. 2015-195983 for which it applied on October 1, 2015, and uses the content of this Japanese Patent Application here. Background technique [0003] For example, a vehicle-mounted air conditioner is required to be highly space-saving due to the need to accommodate various components in a limited space in a vehicle. Therefore, in recent years, for the purpose of improving space saving, an integrated type electric compressor is provided, which integrally constitutes a compressor constituting a vehicle-mounted air conditioner, a motor for driving the compressor, and a motor for driving the compressor. Circuit board for controlling motors. On the circuit board used in such an integrated electric compressor, an IGBT as a switching element is mounted. [0004] In such a circuit board, eleme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/34H05K3/28F04B39/00
CPCF04B39/00H05K3/3452H05K3/3489B60H2001/3292B60R16/02H05K1/18H05K3/34H05K3/4644H05K2203/122
Inventor 服部诚上谷洋行樋口博人鹰繁贵之
Owner MITSUBISHI HEAVY IND THERMAL SYST