Illuminating device and vehicle

By designing a lighting device that includes driving circuits, connecting circuits, opening circuits and current mirror circuits, the problem of simple functions of existing automotive headlight circuits is solved, and OFAF function and a larger scope of application are realized.

CN222691909UActive Publication Date: 2025-03-28MIND ELECTRONICS APPLIANCE CO LTD
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Patent Information

Application Number
CN202421275798.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-05
Publication Date
2025-03-28
Estimated Expiration
2034-06-05

AI Technical Summary

Technical Problem

The circuit functions of existing car lights are relatively simple, and the functions such as OFAF (One-Fail-All-Fail) cannot be realized, and the failure of light-emitting components cannot be effectively managed.

Method used

A lighting device is designed, including a driving circuit, a plurality of lighting branches, a communication circuit, an opening circuit and a current mirror circuit. Through these circuits, the OFAF function is realized in which the light emitting elements of any lighting branch are turned off when the light emitting elements of any lighting branch fail.

Benefits of technology

The OFAF function of the lighting device is realized, the scope of application of the lighting device is expanded, and the flexibility of the design of light emitting elements in the lighting branch is improved.

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Abstract

The utility model provides a lighting device and a vehicle, and relates to the technical field of lighting. When the light-emitting elements in the first lighting branch to the Nth lighting branch can work normally, the input ends of the adjacent lighting branches are connected through the first communication circuit to the (N-1) th communication circuit, and the starting circuit works to control the current mirror circuit to work, so that the light-emitting elements in the first lighting branch to the Nth lighting branch are lightened; and when the light-emitting element of the ith lighting branch circuit has an open-circuit fault, the ith communication circuit is disconnected, so that the starting circuit cannot work, the current mirror circuit cannot be controlled to work, and the light-emitting elements of the first to Nth lighting branch circuits are all extinguished, so that when any lighting branch circuit has an open circuit, the current mirror circuit cannot be controlled to work. And the OFAF function that the light-emitting elements of all the lighting branches are extinguished expands the application range of the lighting device.
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