一种自恢复短路保护电源装置

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By introducing current and voltage detection units into the power supply unit, and combining them with the control of the sustaining and driving units, self-recovery protection during load short circuits is achieved, solving the problem of power supply unit erroneous shutdown and improving the safety and durability of the device.

CN224520645UActive Publication Date: 2026-07-17

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Filing Date: 2025-05-22
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

Existing power supply devices are prone to accidental shutdown when the load is short-circuited and cannot self-recover, resulting in unreliable use.

Method used

A self-recovering short-circuit protection power supply device is designed, comprising a power modulation module, a control module, and a short-circuit triggering module. The load status is detected by a current and voltage detection unit, and the shutdown and recovery of the regulation unit are controlled by a sustaining unit and a drive unit to achieve the self-recovery function.

Benefits of technology

It effectively prevents damage to the power supply unit in the event of a load short circuit, ensures safe and reliable restoration of normal operation, and improves service durability.

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Abstract

本实用新型公开了一种自恢复短路保护电源装置，包括电源调制模块、控制模块以及短路触发模块，控制模块包括控制单元以及调节单元，控制单元与调节单元的受控端连接，短路触发模块包括电流检测单元、电压检测单元、处理单元、驱动单元以及维持单元，处理单元分别与电流检测单元和电压检测单元连接，处理单元通过维持单元与驱动单元的受控端连接，驱动单元的输入端与调节单元的受控端连接，驱动单元的输出端接地，处理单元能够根据电流信息和电压信息中的至少一个来产生触发信号，维持单元能够在接收到触发信号后维持触发时间输出触发信号，驱动单元能够根据触发信号控制调节单元的关断，本设计使用安全可靠，有效防止冲击，保障使用耐久度。

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Claims

1. A self-restoring short-circuit protection power supply device, characterized by comprising: a power supply unit; a short-circuit detection unit; a short-circuit protection unit; and a control unit. The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit. The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit. The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit. The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit.

2. A self-restoring short-circuit protection power supply device according to claim 1, characterized in that: The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit.

3. A self-restoring short-circuit protection power supply device according to claim 1, characterized by: The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit.

4. A self-restoring short-circuit protection power supply device according to claim 3, characterized in that: The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit.

5. A self-restoring short-circuit protection power supply device according to claim 1, characterized by: The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit.

6. A self-restoring short-circuit protection power supply device according to claim 5, characterized by The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit. The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit. The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit. The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit. The utility model relates to a short circuit trigger module, power supply modulation module and control module, and the short circuit trigger module comprises a current detection unit, a voltage detection unit, a processing unit, a drive unit and a maintaining unit. The utility model relates to a short circuit trigger module 7. A self-restoring short-circuit protection power supply device according to claim 5, characterized by: The current detection unit comprises a resistor R4, a resistor R13 and a capacitor C3, an output end of the switch tube Q1 is connected with a first end of the resistor R4 to be grounded through the resistor R4, the first end of the resistor R4 is connected with a first end of the resistor R13, a second end of the resistor R13 is connected with a first end of the capacitor C3 and the processing unit respectively, and a second end of the capacitor C3 is grounded.

8. A self-restoring short-circuit protection power supply device according to claim 5, characterized by: The voltage detection unit comprises a resistor R8, a resistor R9, a resistor R10 and a capacitor C5, a first end of the resistor R8 is connected with an output end of the power supply modulation module, a second end of the resistor R8 is connected with an input end of the switch tube Q1 and a first end of the resistor R9 respectively, a second end of the resistor R9 is connected with a first end of the resistor R10, a first end of the capacitor C5 and the processing unit respectively, and a second end of the resistor R10 and a second end of the capacitor C5 are grounded.

9. The self-restoring short-circuit protection power supply device according to claim 1, characterized by The power supply voltage regulation module is further included, an output end of the power supply modulation module is connected with an input end of the power supply voltage regulation module, and output ends of the power supply voltage regulation module are connected with the control unit and the processing unit respectively.