Anti-collision automatic folding rearview mirror

The rearview mirror system, with its split design, utilizes flexible slots, contact connections, and relay control to achieve automatic folding protection during collisions. This solves the problem of easy damage to rearview mirrors in existing technologies, reduces maintenance costs, and improves safety.

CN121716612APending Publication Date: 2026-03-24南海宾
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-27
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing automotive rearview mirrors cannot effectively protect themselves automatically in the event of a collision, resulting in damage to the outer shell and requiring replacement of the entire assembly. This is time-consuming, labor-intensive, and affects driving safety. Furthermore, current technology lacks intelligent automatic control.

Method used

The rearview mirror housing and adjustment bracket adopt a split design, which is connected by elastic slots and contacts. Combined with a relay control unit, it realizes automatic folding protection, separate control of the housing and the main body, and independent servo motor control.

Benefits of technology

It achieves rapid folding of the outer shell in the event of a collision, protecting the main body from damage. The outer shell can be replaced separately, reducing maintenance costs and improving driving safety and convenience, making it cost-effective.

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Abstract

The invention discloses an anti-collision automatic folding rearview mirror which comprises a rearview mirror fixing support, one end of the rearview mirror fixing support is installed on a cab, the other end of the rearview mirror fixing support is connected with a rearview mirror adjusting support through a hinge mechanism and a rotary servo motor of the hinge mechanism, and a rearview mirror lens is installed on the rear end face of the adjusting support through a lens disc base and an adjustable cross structure. Clamping grooves are formed in the four corners of the front end face of the adjusting support, the clamping grooves are elastically and movably connected with corresponding springs, limiting screws and clamping groove matching parts on a rearview mirror shell, meanwhile, four pairs of elastic piece contacts are arranged, and parallel connection outgoing lines of the contacts on the shell and the adjusting support are all connected with a relay control unit wiring terminal. Other wiring terminals of the control unit are respectively connected with a rearview mirror folding and unfolding control button, an adjusting button, a rotary servo motor, a power supply and a grounding terminal; when the rearview mirror is collided, the rearview mirror can elastically retract to absorb external force and be rapidly folded, the shell can be independently replaced, and the rearview mirror is safe, reliable, easy to popularize and high in cost performance, and cost is saved.
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Description

Technical Field

[0001] This invention relates to an anti-collision automatic folding rearview system, belonging to the field of automobile, motorcycle, and mechanical vehicle manufacturing. Background Technology

[0002] Existing car rearview mirrors only have manual or electric folding functions, and a few vehicles have rather useless warning functions, but none of them have an effective automatic protection system in the event of a collision. Rearview mirrors are also vulnerable parts of vehicles. Although most vehicles will fold after a collision with a large torque, rigid or sharp objects can still cause the paint on the rearview mirror shell to peel off or crack, or even the support to break and scatter. Even if only the shell is damaged, the rearview mirror assembly must be replaced, which is not only time-consuming and laborious but also results in significant economic losses. Furthermore, the vehicle cannot continue to drive due to the damage to the rearview mirror, or driving continues to reduce driving safety. In today's increasingly busy traffic flow, it is becoming more and more necessary to improve the current situation. Summary of the Invention

[0003] In order to solve the above-mentioned problems in the prior art, the purpose of this invention is to provide a collision automatic folding protection rearview system that is stable in operation, reduces losses, saves costs, is safe and reliable, and has a high cost performance.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an anti-collision automatic folding rearview system, including a rearview mirror fixing bracket, one end of which is installed on the driver's cab, and the other end is connected to a rearview mirror adjustment bracket via a folding hinge shaft and a rotary servo motor; the rear end face of the adjustment bracket is provided with a lens plate seat, horizontal and vertical adjustment servo motors, and an adjustable cross structure for supporting and adjusting the rearview mirror lens; the front end face of the adjustment bracket is provided with a slot, and the rearview mirror housing is connected via a spring, a limit screw, and a slot assembly; the wiring terminals of the added relay control unit are respectively connected to the rotary servo motors of the two rearview mirrors, the rearview mirror housing contacts and the adjustment bracket contact leads, as well as the rearview mirror retraction control button, adjustment button, and their power supply and grounding terminals.

[0005] Furthermore, the four corners of the front end face of the rearview mirror adjustment bracket are provided with slots, which are elastically and movably connected to the four sets of springs, limit screws and slot pairs respectively installed on the rearview mirror housing.

[0006] Furthermore, the rearview mirror adjustment bracket has a total of 4 sets of contacts, all of which are rigid spring contact designs. They are located adjacent to the slot and correspond one-to-one with the flat contacts on the rearview mirror housing, and are all normally open. When the rearview mirror is hit, at least one or all four pairs of contacts will close.

[0007] Furthermore, the rearview mirror housing contacts and the adjustment bracket contact leads are all connected in a ring-shaped parallel line at each end. That is, when the rearview mirror is involved in a collision, closing any pair of contacts will trigger the relay control unit to issue a command.

[0008] Furthermore, the rearview mirror housing and the adjustment bracket are designed separately; the rotation servo motors of the two rearview mirrors are independently controlled by a relay control unit.

[0009] The beneficial effects of this invention are as follows: This automatic folding rearview mirror system features a separate design for the rearview mirror housing and the main core component, using a snap-on mounting and disassembly mechanism. In the event of minor scratches or bumps, the rearview mirror housing is elastic and can fold quickly without damage to either the housing or the main body. In the event of a larger torque or impact from an extremely sharp object, the rearview mirror housing elastically retracts to absorb kinetic energy while folding quickly. While the housing may be damaged, the main body and core component remain undamaged, ensuring normal use. The housing can be easily replaced individually, saving time, effort, and worry, and significantly reducing costs. The independent zone control of the folding functions of the two rearview mirrors ensures that they do not interfere with each other. A collision does not affect the use of the other rearview mirror. After folding, simply pressing the rearview mirror folding control button in the driver's cab quickly returns the mirror to its original position, effectively ensuring driving safety. Compared with existing technologies, this system requires only a small investment to achieve intelligent automatic control, significantly reducing costs and effectively improving safety and convenience, thus offering high cost-effectiveness. This system is applicable to all automobiles, motorcycles, and other mechanical vehicles and is easy to promote. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a schematic diagram of the structure of the present invention.

[0012] In the diagram: 1. Rearview mirror mounting bracket; 2. Folding hinge shaft; 3. Rotary servo motor; 4. Rearview mirror adjustment bracket; 5. Rearview mirror housing; 6. Rearview mirror lens; 7. Rearview mirror adjustment bracket contact; 8. Horizontal adjustment servo motor; 9. Rearview mirror lens plate seat; 10. Slot; 11. Spring; 12. Limit screw; 13. Vertical adjustment servo motor; 14. Housing contact lead wire; 15. Adjustment bracket contact lead wire; 16. Relay control unit; 17. Rearview mirror retraction control button; 18. Rearview mirror adjustment button. Detailed Implementation

[0013] like Figure 1The diagram shows an automatic folding rearview mirror designed for collision avoidance. It includes a rearview mirror mounting bracket 1, one end of which is mounted on the driver's cab, and the other end is connected to a rearview mirror adjustment bracket 4 via a folding hinge shaft 2 and a rotary servo motor 3. A horizontal adjustment servo motor 8 and a vertical adjustment servo motor 13 are respectively installed in the middle and lower sections of the adjustment bracket 4. A rearview mirror lens 6 is mounted on the rear end face of the adjustment bracket 4 via a lens plate seat 9 and an adjustable cross structure. A slot 10 is provided on the front end face of the adjustment bracket 4, and the rearview mirror housing 5 is connected to a spring 11, a limit screw 12, and a slot assembly via the slot 10. The terminals of the added relay control unit 16 are respectively connected to the rotary servo motors 3 of both rearview mirrors, the housing contact lead-out wire 14, the adjustment bracket contact lead-out wire 15, the rearview mirror retraction control button 17, the rearview mirror adjustment button 18, and their power and grounding terminals.

[0014] Furthermore, each of the four corners of the front end face of the rearview mirror adjustment support 4 is provided with a slot 10, which is elastically and movably connected to the four sets of springs 11, limit screws 12 and slot pairs respectively installed on the rearview mirror housing 5.

[0015] Furthermore, the rearview mirror adjustment support contact 7 has a total of 4 sets, all of which are rigid spring contact designs. They are set in the adjacent part of the slot 10 and correspond one-to-one with the flat contact on the rearview mirror housing 5. They are all normally open. When the rearview mirror is hit, at least one or all four pairs of contacts will close.

[0016] Furthermore, both the housing contact lead-out line 14 and the adjustment bracket contact lead-out line 15 are circular parallel connections with collinear contacts at each end. That is, when the rearview mirror collides, closing any pair of contacts will trigger the relay control unit 16 to issue a command.

[0017] Furthermore, the rearview mirror housing 5 and the adjustment bracket 4 are designed separately; the rotation servo motors of the two rearview mirrors are independently controlled by a relay control unit.

[0018] Existing rearview mirrors have design deficiencies in collision protection. As the outermost component of a vehicle, rearview mirrors are easily scratched and are considered vulnerable parts, especially for passenger and freight vehicles with larger body dimensions. Minor scratches and bumps can damage the outer shell, while larger impacts can damage both the outer shell and the core components. Even if only the outer shell is damaged, the entire assembly must be replaced, otherwise it will severely affect the appearance. Moreover, most modern vehicles have electric adjustment functions, and some even have lane departure warning functions. Damage to these mirrors seriously affects driving safety, and replacement is time-consuming, labor-intensive, and expensive. This has been a long-standing problem that urgently needs to be solved.

[0019] This system features self-protection against collisions and separate, zoned control for both rearview mirrors. When a rearview mirror is impacted, if any pair of contacts between its outer shell and the four pairs of flat plates and spring contacts on the adjustment bracket comes into contact, the circuit closes, and the relay control unit immediately sends a power command. This causes the servo motor of the rearview mirror on the impacted side to immediately activate. As the outer shell elastically retracts to absorb the external force, the rearview mirror simultaneously and quickly folds back, effectively protecting the outer shell and the main body from damage. Due to the separate design, even if the outer shell is damaged, it can be replaced individually with a simple snap-on disassembly and assembly, making it easy to operate and inexpensive. After one rearview mirror folds due to a collision, simply pressing the rearview mirror retraction control button in the driver's cab will quickly return it to its original position. The two rearview mirrors are independently zoned and do not affect each other. When one rearview mirror folds due to a collision, the other remains in its normal position, which helps ensure driving safety.

[0020] Compared to traditional designs, the cost increases slightly, but the functionality is greatly improved. It enables intelligent automatic control, significantly reduces maintenance costs, saves manpower and time costs, and greatly improves convenience and safety. Therefore, it is cost-effective. This invention is applicable to all automobiles, motorcycles, and other mechanical vehicles, making it widely applicable and easy to promote.

Claims

1. A collision-avoidance automatic folding rearview mirror, comprising a fixed support (1), one end of which is mounted on the driver's cab, and the other end of which is connected to a rearview mirror adjustment support (4) via a folding hinge shaft (2) and a rotary servo motor (3), wherein a horizontal adjustment servo motor (8) and a vertical adjustment servo motor (13) are respectively provided in the middle and lower sections of the adjustment support (4), characterized in that: It also includes a rearview mirror lens (6) mounted on the rear end face of the adjustment bracket (4) via a lens plate seat (9) and an adjustable cross structure; the front end face of the adjustment bracket (4) is provided with a slot (10), and the rearview mirror housing (5) is connected to the spring (11), the limit screw (12) and the slot assembly via the slot (10); the wiring terminals of the added relay control unit (16) are respectively connected to the rotary servo motor (3) of the two rearview mirrors, the contact lead wire (15) of the adjustment bracket, the contact lead wire (14) of the housing, and the rearview mirror retraction control button (17), the rearview mirror adjustment button (18) and its power supply and wiring terminals.

2. The anti-collision automatic folding rearview mirror according to claim 1, characterized in that: The four corners of the front end face of the rearview mirror adjustment support (4) are provided with slots (10), which are elastically connected to the four sets of springs (11), limit screws (12) and their slot pairs on the rearview mirror housing (5).

3. The anti-collision automatic folding rearview mirror according to claim 1, characterized in that: The rearview mirror adjustment support contact (7) has a total of 4 sets, all of which are rigid spring contact designs. They are installed in the adjacent part of the slot (10) and correspond one-to-one with the flat contact on the rearview mirror housing (5) and are all normally open. When the rearview mirror is hit, at least one or all four pairs of contacts will close.

4. The anti-collision automatic folding rearview mirror according to claim 1, characterized in that: The outer casing contact lead (14) and the adjustment bracket contact lead (15) are both circular parallel lines of each end contact, that is: when the rearview mirror is involved in a collision, closing any pair of contacts will trigger the relay control unit (16) to issue an instruction.

5. The anti-collision automatic folding rearview mirror according to claim 1, characterized in that: The rearview mirror housing (5) and the adjustment support (4) are designed separately, and the rotation servo motors (3) of the left and right rearview mirrors are independently controlled by the relay control unit (16).