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A controlled solid state relay

A technology of solid state relays and normally closed relays, applied in electrical components, electronic switches, pulse technology, etc., can solve problems such as fire hazards, power semiconductor devices at the output end of the load, and easy to endanger human safety.

Active Publication Date: 2017-03-15
XIAMEN JINXINRONG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Conventional solid state relay is a kind of passive component. The most common failure phenomenon in the application process is that the power semiconductor device at the output end of the load is broken down and leads to a direct connection. However, this failure phenomenon is undesirable or undesirable in some applications. Allowed
For example, the direct failure of the solid relay in the electric water heater will cause dry burning or overheating of hot water, which may endanger the safety of life; the direct failure of the solid relay in the electric oven may cause fire hazard

Method used

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  • A controlled solid state relay
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Embodiment Construction

[0022] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0023] The circuit diagram as a preferred embodiment of the controlled solid state relay of the present invention is as figure 1 As shown, it includes a normally open relay 10 , a normally closed relay 20 , a thermal fuse 301 and an electric heating element 302 .

[0024] The first input end of the normally open relay 10 is connected with the first input end of the normally closed relay 20 as the first input end of the controlled solid state relay; the second input end of the normally open relay 10 It is connected with the second input terminal of the normally closed relay 20 as the second input terminal of the controlled solid state relay; the first output terminal of the normally open relay 10 is used as the first output terminal OUTPUT1 of the controlled solid state relay ; The second output terminal of the normally open relay 10 is connected in ...

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Abstract

The invention relates to a solid state relay, in particular to a controlled solid state relay. The controlled solid state relay comprises a normally open relay, a normally closed relay, a thermal fuse, a heating resistor and a power supply terminal. The controlled solid state relay has a function of initiatively disconnecting a main electric circuit in short time after the internal normally open solid relay is in shoot-through failure. The controlled solid state relay can guarantee that the relay is in a disconnected state after failure, and accordingly adverse influences on safety due to shoot-through failure of the relay can be eliminated.

Description

technical field [0001] The invention relates to a solid relay, in particular to a controlled solid relay. Background technique [0002] Conventional solid state relay is a kind of passive component. The most common failure phenomenon in the application process is that the power semiconductor device at the output end of the load is broken down and leads to a direct connection. However, this failure phenomenon is undesirable or undesirable in some applications. Allowed. For example, the failure of the solid state relay in the electric water heater will lead to dry burning or overheating of hot water, which is likely to endanger human safety; the failure of the solid state relay in the electric oven will easily cause fire hazards. Contents of the invention [0003] In view of the above-mentioned prior art, the technical problem solved by the present invention is to provide a controlled solid state relay, so that the normally open solid state relay can realize the function of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K17/08
Inventor 林育超饶明辉
Owner XIAMEN JINXINRONG ELECTRONICS