An electric excitation circuit, device, solid chemical oxygen generator and oxygen supply system

CN121775776BActive Publication Date: 2026-06-09SHAANXI IND DESIGN & RES INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI IND DESIGN & RES INST CO LTD
Filing Date
2026-03-04
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Once the circuit switch in the electro-excitation device is turned on, it can easily cause the solid chemical oxygen generator to start unexpectedly, posing a safety hazard.

Method used

Design an electro-excitation circuit that controls the conversion of electrical energy into thermal energy by setting the combined state of the electrothermal conversion unit and the protection unit, ensuring the controlled start-up of the solid chemical oxygen generator. This includes the combined use of energy storage capacitors, switches, and protective resistors to prevent malfunctions from triggering reactions.

Benefits of technology

This effectively avoids accidental start-up of the solid chemical oxygen generator, improves safety and reliability, and ensures the controllable start-up of the electric excitation device.

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    Figure CN121775776B_ABST
Patent Text Reader

Abstract

The application provides an electric excitation circuit, a device, a solid chemical oxygen generator and an oxygen supply system. The electric excitation circuit comprises a battery, an electric heating conversion unit and a protection unit. The electric heating conversion unit has a first end, a second end, a third end and a fourth end. The first end and the fourth end of the electric heating conversion unit are grounded, and the second end of the electric heating conversion unit is connected with the battery. The electric heating conversion unit has an off state and an on state. The protection unit has a first end and a second end. The first end of the protection unit is connected with the third end of the electric heating conversion unit, and the second end of the protection unit is grounded. The protection unit has an off state and an on state. When the protection unit is in the off state and the electric heating conversion unit is in the closed state, the electric heating conversion unit converts the stored electric energy into heat energy. The application can solve the problem that the solid chemical oxygen generator is prone to accidental start and has a safety hazard.
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