A pulse width controllable electronic lock drive circuit

By introducing a farad capacitor and a charge-discharge circuit unit into the charging pile control circuit and the pulse electronic lock control circuit, the forward and reverse pulse signals are used to realize the controllable locking and unlocking of the electronic lock, which solves the problem of uncontrollable electronic lock time in the existing technology and realizes automatic control and circuit protection.

CN115275711BActive Publication Date: 2025-09-26SHENZHEN QIHUI ELECTRIC CO LTD
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Patent Information

Application Number
CN202210923719.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-02
Publication Date
2025-09-26
Estimated Expiration
2042-08-02

AI Technical Summary

Technical Problem

In the existing electromagnetic lock control design, the locking and unlocking time of the electronic lock is uncontrollable. After long-term use, the capacitor ages quickly, resulting in locking or unlocking failure, and the pulse electronic lock needs to be manually disconnected mechanically.

Method used

The charging pile control circuit and the pulse electronic lock control circuit are used to control the locking and unlocking of the electronic lock through the farad capacitor and the charge and discharge circuit unit. The forward and reverse pulse signals are used to achieve controllable locking and unlocking of the electronic lock. The voltage value of the farad capacitor is kept within the set threshold range.

Benefits of technology

This achieves automated control of the electronic lock, avoids manual mechanical disconnection, protects the charging circuit, and ensures that the electronic lock can be reliably unlocked when charging is complete.

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Abstract

The present invention discloses a pulse-width controllable electronic lock locking drive circuit, comprising a charging pile control circuit and a pulse electronic lock control circuit, wherein the pulse electronic lock control circuit comprises a farad capacitor and a locking and unlocking circuit unit; the charging pile control circuit outputs a positive pulse to the locking and unlocking circuit to control the electronic lock to lock, and the farad capacitor begins to charge; the charging pile control circuit disconnects the auxiliary power supply, the farad capacitor discharges, and the chip U1 outputs a reverse pulse to drive the electronic lock to unlock; wherein, the farad capacitor has at least one group and is connected to a charge-discharge circuit unit, and the charge-discharge circuit unit controls the farad capacitor voltage value within a set threshold range. When the charging pile is charging the electric vehicle, the charging pile control circuit outputs power to the pulse electronic lock control circuit, the pulse electronic lock is locked, and the capacitor C is charged at the same time; conversely, when the power is disconnected, the farad capacitor discharges, and the electronic lock is unlocked, without the need for manual mechanical disconnection of the pulse electronic lock.
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Citation Information

Patent Citations

  • Electronic lock control device for charging gun head of electric vehicle and electronic lock device

    CN107839508A

  • Control circuit for pulse electronic lock

    CN110453991A