Electric relay having life memory function and apparatus thereof

A technology for relays and electronic devices, applied in the directions of relays, circuit devices, electromagnetic relays, etc., can solve the problems of no setting to warn, inform users, open circuit or short circuit, burnout, etc.
CN101459014AInactive Publication Date: 2009-06-17MOXA INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MOXA INC
Publication Date
2009-06-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a relay with service-life memory function and a device thereof. A solenoid coil capable of receiving control signals transmitted by an electronic device controller is positioned in a relay module, the control signals are utilized to trigger excitation of a primary side solenoid coil so as to lead a secondary side change-over switch to present on or off states, the change-over switch is connected with a power input device and a load of a power control circuit, further, with the controller, the motion frequency of the change-over switch of the relay module can be stored in a memory, and when the switching frequency reaches the predetermined counting value, warning signals can be automatically sent to warn and inform users to substitute the relay module which is about to fault or at the end of service life due to contact aging in advance, thereby avoiding shortages of damages, stoppage or burning-out of the controlled load due to short circuit or faults of the relay module.
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Description

technical field

[0001] The present invention relates to a relay with a life memory function and its device, especially a controller that can store the switching times of the relay module in the memory, and when the switching times reach the predetermined count value, it can automatically Send a warning signal to inform the user to replace the relay module that is about to fail due to contact aging or has expired. Background technique

[0002] Relays are widely used nowadays. Most of the relays operate on the principle that the primary side electromagnetic coil is excited to cause the secondary side contacts to be closed or opened, so that the relay can be used as As an electronic control device, in actual use, it is used as an automatic switch that controls a large current with a small current, and plays the role of automatic adjustment, safety protection and conversion circuit in the automatic control circuit, while This kind of relay has a wide range of applications, and ...

Claims

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