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Power supply circuit based on solid-state relay and air conditioner

A technology of solid-state relays and power supply circuits, which is applied in the direction of circuit devices, AC network circuits, electrical components, etc., and can solve the problems of high failure rate of solid-state relays

Pending Publication Date: 2018-06-19
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Solid state relays have been widely used as controllable switches for fan power supply circuits in air conditioners. However, in practical applications, the failure rate of solid state relays based on solid state relays for controlling AC fan circuits has always been high.

Method used

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  • Power supply circuit based on solid-state relay and air conditioner
  • Power supply circuit based on solid-state relay and air conditioner
  • Power supply circuit based on solid-state relay and air conditioner

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Embodiment Construction

[0021] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but 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 making creative efforts belong to the protection scope of the present invention.

[0022] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically or electrically connected; it can be directly connected, or indirectly connected through an intermediary, or it can be the internal communication of two components, which can b...

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PUM

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Abstract

The invention discloses a power supply circuit based on a solid-state relay and an air conditioner. The power supply circuit based on the solid-state relay comprises a power supply module based on thesolid-state relay for being connected with a load; and a controllable switch module of which the input end is used for being connected with an AC power supply and the output end is connected with thepower supply module and used for disconnecting the connection of the AC power supply and the power supply module when the load is in the non-working state. The connection of the input end of the solid-state relay and the power supply can be disconnected when the load is in the non-working state so that the solid-state relay is enabled not to be powered on, the impact of lightning surge can be reduced and the reliability of the solid-state relay can be enhanced.

Description

technical field [0001] The invention relates to the technical field of home appliances, in particular to a solid-state relay-based power supply circuit and an air conditioner. Background technique [0002] Solid State Relay (SSR) is a new type of non-contact switching device composed entirely of solid-state electronic components. It uses the switching characteristics of electronic components (such as switching transistors, bidirectional thyristors and other semiconductor devices) to achieve The purpose of turning on and off the circuit without contact and spark, so it is also called "contactless switch". A solid state relay is a four-terminal active device, two of which are input control terminals and the other two are output controlled terminals. It has both amplifying and driving functions and isolating functions. It is very suitable for driving high-power switching actuators. Compared with electromagnetic relays, it has higher reliability, and has no contacts, long life,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00
Inventor 夏建国张雨驰孙丹
Owner GREE ELECTRIC APPLIANCES INC
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