Automatic charging type time switch

By designing an automatic charging circuit and diode protection mechanism in the time-controlled switch, the problem that existing time-controlled switches require regular battery replacement is solved, and the function of the equipment operating normally and charging the battery under uninterrupted power supply is realized.

CN222356029UActive Publication Date: 2025-01-14ZHENGZHOU DINGZHILI ELECTRONIC PROD CO LTD
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Patent Information

Application Number
CN202421045605.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-14
Publication Date
2025-01-14
Estimated Expiration
2034-05-14

AI Technical Summary

Technical Problem

The existing time-controlled switch needs to be replaced regularly with internal No. 7 battery, which will affect the normal turn-off function of the equipment when the battery voltage is too low.

Method used

An automatic charging time-controlled switch is designed, including interface circuit, rectifying and filter circuit, switch circuit, relay control circuit, battery charging circuit and button circuit. The AC power supply is used for rectification and charging. The series diode in the charging circuit ensures that the battery only goes toward the The main control circuit provides electrical energy without reverse leakage.

Benefits of technology

When the AC power supply is provided, the device works normally and recharges the battery, and stops charging after full; after the AC power supply is interrupted, the rechargeable battery provides the power supply, avoiding the problem of low battery voltage affecting the equipment and ensuring that the equipment continues to operate normally.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222356029U_ABST
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Abstract

The utility model discloses an automatic charging type time control switch, which comprises an interface circuit, a rectification filter circuit, a switch circuit, a relay control circuit, a battery charging circuit, a key circuit and a processor, and is characterized in that the output end of the interface circuit is connected with the input end of the rectification filter circuit, and the output end of the rectification filter circuit is connected with the input end of the switch circuit; a control signal input end of the switching circuit is connected with a signal output interface of the processor, an output end of the switching circuit is respectively connected with the relay control circuit and the battery charging circuit, the battery charging circuit is connected with a power input interface of the processor, and the relay control circuit is connected with the interface circuit; and the key circuit is connected with a signal input interface of the processor. According to the utility model, the rectifying and filtering circuit is matched with the switching circuit to charge the internal battery while supplying power to the processor under the condition that alternating current is externally accessed, the battery is utilized to supply power to the processor when the external is powered off, and meanwhile, the processor controls the relay to control the on-off of the circuit according to internal timing setting.
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