Hidden handle with automobile door opening or closing warning function

By designing an invisible handle with door opening or closing warning functions, combined with a door lock status sensor and a speaker, the problem of insufficient aesthetics and safety of existing car door handles has been solved, resulting in a better user experience and safety reminders.

CN224161579UActive Publication Date: 2026-04-24CHANGZHOU SITEEN AUTOMOTIVE TRIM SYST +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU SITEEN AUTOMOTIVE TRIM SYST
Filing Date
2025-03-24
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing car door handles have limited functionality, failing to enhance the aesthetics of the car's interior and the passenger experience, while also lacking safety warning features.

Method used

Design an invisible handle with a car door opening or closing warning function, including a handle frame, soft covering, lower trim panel, switch panel, warning handle, damper, pivot, torsion spring and PCB board, combined with control circuit, using door lock status sensor and speaker to provide warning prompts.

Benefits of technology

It enhances the aesthetics of the car's interior space and the experience for drivers and passengers, while providing safety warnings through LED lights and speakers to ensure that drivers and passengers receive clear prompts in different door states.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an invisible handle with an automobile door opening or closing warning function, which comprises a handrail framework, a soft wrapping layer, a lower decorative plate, a switch panel, a warning handle, a damper, a rotating shaft, a torsion spring and a PCB (printed circuit board), the soft wrapping layer is wrapped on the outer side of the handrail framework, the lower decorative plate is connected with the handrail framework, and the switch panel is arranged on the lower decorative plate. The switch panel is connected with the handrail framework and the lower decorative plate, the warning handle is rotationally connected with the switch panel through a torsion spring connected to a rotating shaft in a penetrating mode, the damper is connected with the switch panel in a fastening mode, a gear on the damper is meshed with an incomplete gear on the warning handle, an LED lamp is arranged on the PCB, and the PCB is embedded into the warning handle. Not only are the beauty of the internal space of the automobile and the experience of drivers and passengers improved, but also the safety warning effect can be achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive interior technology. Specifically, this utility model relates to an invisible handle with a warning function for opening or closing car doors. Background Technology

[0002] There are currently many types of car door handles on the market, which can be mainly divided into three types: traditional handles, concealed handles, and touch handles. Traditional handles are the most common type of car door handle. They are usually made of metal or plastic and are opened or closed by manually rotating or pushing / pulling. Concealed handles are generally hidden inside the door and integrated with the door trim. Touch handles use electronic sensors and Bluetooth technology to open and close the door.

[0003] Existing car door handles have limited functionality, failing to enhance the aesthetics of the car's interior or improve the passenger experience, and also failing to serve as a safety warning. Utility Model Content

[0004] This utility model provides an invisible handle with a car door opening or closing warning function to solve the technical problems existing in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a concealed handle with a car door opening or closing warning function, comprising a handrail frame, a soft covering layer, a lower trim panel, a switch panel, a warning handle, a damper, a pivot, a torsion spring, and a PCB board. The soft covering layer covers the outside of the handrail frame, the lower trim panel is connected to the handrail frame, the switch panel is connected to the handrail frame and the lower trim panel, the warning handle is rotatably connected to the switch panel via a torsion spring passing through the pivot, the damper is fastened to the switch panel, the gear on the damper meshes with the incomplete gear on the warning handle, and the PCB board is provided with an LED light and is embedded in the warning handle.

[0006] Preferably, a concealed door handle with a car door opening or closing warning function further includes a control circuit. The control circuit includes a vehicle control MCU, a resistor, a door speaker, a linkage switch, a vehicle battery, and a door lock status sensor. The resistor, door speaker, LED light, linkage switch, and vehicle battery are connected in series, and the vehicle control MCU and door speaker are connected in parallel. The door lock status sensor is an SS49E linear Hall sensor with an operating voltage of 5V and an output signal range of 0.5V to 4.5V. The resistor has a resistance of 1kΩ±5%, the door speaker has a power of 5W and an impedance of 4Ω, and is installed inside the door lock mechanical structure to detect the locking or unlocking status of the door lock in real time and transmit it to the vehicle control MCU via a PWM signal.

[0007] Preferably, the lower trim panel is provided with a linkage switch and a handle buffer pad.

[0008] The beneficial effects of adopting the above technical solutions are:

[0009] 1. This utility model features a concealed door handle with a door opening / closing warning function. During vehicle operation, the PWM signal output by the door lock status sensor indicates the door lock is locked (high level > 3.3V) or unlocked (low level < 0.5V), and is transmitted to the vehicle control MCU. The MCU then sends a signal to control an LED on the PCB board to flash yellow light at a frequency of 2Hz via an internal timer, alerting passengers that the vehicle is in motion. If a passenger pulls the warning handle, the linkage switch triggers the low-level signal, and the MCU immediately interrupts the LED flashing logic and drives the door speaker to emit a 5kHz high-frequency risk warning signal to alert the driver and passengers.

[0010] 2. This utility model features a concealed door handle with a door opening or closing warning function. After the vehicle is parked, the door lock status sensor detects an unlocked state (PWM signal low level), and the vehicle control MCU switches to the door-ready mode. When the occupants open the door, the warning handle rotates smoothly around its axis, overcoming the resistance of the torsion spring and damping. When the warning handle rotates to touch the linkage switch, the linkage switch triggers a high-level signal, which is output by the vehicle control MCU through the GPIO port. The LED on the PCB board emits a constant green light, and the light is emitted through the transparent logo on the transparent warning handle. The SPI protocol then drives the door speaker to play a pre-stored "Door safely opened" voice prompt.

[0011] During the closing process, after the driver and passengers manually lock the doors, the vehicle control MCU sends a signal, and the LED lights on the PCB board light up red to remind the driver and passengers that the doors have been closed. At the same time, the door speakers emit a voice prompt saying "The doors are safely closed". Attached Figure Description

[0012] Figure 1 This utility model relates to an invisible handle assembly with a car door opening or closing warning function. Figure 1 ;

[0013] Figure 2 This utility model relates to an invisible handle assembly with a car door opening or closing warning function. Figure 2 ;

[0014] Figure 3 This is an exploded view of the concealed handle with a car door opening or closing warning function according to this utility model;

[0015] Figure 4 This is a schematic diagram of the lower trim panel structure;

[0016] Figure 5 This is a schematic diagram of the switch panel structure;

[0017] Figure 6 It is an assembly diagram of the warning handle, damper, pivot, torsion spring, and PCB board;

[0018] Figure 7 It is a control circuit diagram;

[0019] in:

[0020] 1. Armrest frame; 2. Soft padding layer; 3. Lower trim panel; 4. Switch panel; 5. Warning handle; 6. Damper; 7. Shaft; 8. Torsion spring; 9. PCB board; 10. Vehicle control MCU; 11. Resistor; 12. Door speaker; 13. Vehicle battery; 14. Door lock status sensor;

[0021] 50. Interlocking switch; 51. Handle buffer pad;

[0022] 90. LED lights. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0024] like Figures 1 to 7 As shown, this utility model is an invisible handle with a warning function for opening or closing car doors. It not only improves the aesthetics of the car interior and the experience of the driver and passengers, but also serves as a safety warning.

[0025] Specifically, such as Figures 1 to 7 As shown, the device includes a handrail frame 1, a soft covering layer 2, a lower trim panel 3, a switch panel 4, a warning handle 5, a damper 6, a pivot 7, a torsion spring 8, and a PCB board 9. The soft covering layer 2 covers the outside of the handrail frame 1. The lower trim panel 3 is connected to the handrail frame 1. The switch panel 4 is connected to both the handrail frame 1 and the lower trim panel 3. The warning handle 5 is rotatably connected to the switch panel 4 via a torsion spring 8 passing through the pivot 7. The damper 6 is fastened to the switch panel 4. The gear on the damper 6 meshes with the incomplete gear on the warning handle 5. The PCB board 9 is equipped with an LED light 90 and is embedded in the warning handle 5.

[0026] An invisible door handle with a door opening or closing warning function is provided, and a control circuit is also included. The control circuit includes a vehicle control MCU 10, a resistor 11, a door speaker 12, a linkage switch 50, a vehicle battery 13, and a door lock status sensor 14. The resistor 11, door speaker 12, LED light 90, linkage switch 50, and vehicle battery 13 are connected in series, and the vehicle control MCU 10 and door speaker 12 are connected in parallel. The door lock status sensor 14 is an SS49E linear Hall sensor with an operating voltage of 5V and an output signal range of 0.5V to 4.5V. The resistor 11 has a resistance of 1kΩ±5%, and the door speaker 12 has a power of 5W and an impedance of 4Ω. It is installed in the mechanical structure of the door lock and is used to detect the locking or unlocking status of the door lock in real time and transmit it to the vehicle control MCU 10 via a PWM signal.

[0027] The lower trim panel 3 is equipped with a linkage switch 50 and a handle buffer pad 51.

[0028] The specific working method is described below using specific embodiments:

[0029] Example 1:

[0030] This utility model features a concealed door handle with a door opening / closing warning function. During vehicle operation, the PWM signal output by the door lock status sensor 14 indicates the door lock is locked (high level > 3.3V) or unlocked (low level < 0.5V), and is transmitted to the vehicle control MCU 10. The MCU 10 then sends a signal to control the LED 90 on the PCB board 9 to flash yellow light at a frequency of 2Hz via an internal timer, alerting passengers that the vehicle is in motion. If a passenger pulls the warning handle 5, the linkage switch 50 triggers the low-level signal, immediately interrupting the LED 90 flashing logic and driving the door speaker 12 to emit a 5kHz high-frequency risk warning signal to alert the driver and passengers.

[0031] Example 2:

[0032] This utility model features a concealed door handle with a door opening or closing warning function. After the vehicle is parked, the door lock status sensor 14 detects an unlocked state (PWM signal low level), and the vehicle control MCU 10 switches to the door-ready mode. When the occupants open the door, the warning handle 5 rotates smoothly around the pivot 7, overcoming the resistance of the torsion spring 8 and damping 6. When the warning handle 5 rotates to touch the linkage switch 50, the linkage switch 50 triggers a high-level signal, and the vehicle control MCU 10 outputs a control signal through the GPIO port. The LED 90 on the PCB board 9 emits a constant green light, and the light from the LED 90 is emitted through the transparent logo on the transparent warning handle 5. The light is then used to drive the door speaker 12 via the SPI protocol to play a pre-stored "Door safely opened" voice prompt.

[0033] During the closing process, after the driver and passengers manually lock the doors, the vehicle control MCU10 sends a signal, and the LED light 90 on the PCB board 9 emits a red light to remind the driver and passengers that the doors have been closed. At the same time, the door speaker 12 emits a voice prompt saying "The doors are safely closed".

[0034] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A concealed handle with a car door opening or closing warning function, characterized in that: The assembly includes a handrail frame (1), a soft covering layer (2), a lower trim panel (3), a switch panel (4), a warning handle (5), a damper (6), a pivot (7), a torsion spring (8), and a PCB board (9). The soft covering layer (2) covers the outside of the handrail frame (1). The lower trim panel (3) is connected to the handrail frame (1). The switch panel (4) is connected to the handrail frame (1) and the lower trim panel (3). The warning handle (5) is rotatably connected to the switch panel (4) via a torsion spring (8) passing through the pivot (7). The damper (6) is fastened to the switch panel (4). The gear on the damper (6) meshes with the incomplete gear on the warning handle (5). The PCB board (9) is equipped with an LED light (90) and is embedded in the warning handle (5).

2. The concealed handle with a car door opening or closing warning function as described in claim 1, characterized in that: It also includes a control circuit, which includes a vehicle control MCU (10), a resistor (11), a door speaker (12), a linkage switch (50), a vehicle battery (13), and a door lock status sensor (14). The resistor (11), the door speaker (12), the LED light (90), the linkage switch (50), and the vehicle battery (13) are connected in series, and the vehicle control MCU (10) and the door speaker (12) are connected in parallel. The door lock status sensor (14) is an SS49E linear Hall sensor with a working voltage of 5V and an output signal range of 0.5V to 4.5V. The resistor (11) has a resistance of 1kΩ±5%, and the door speaker (12) has a power of 5W and an impedance of 4Ω. It is installed in the mechanical structure of the door lock and is used to detect the locking or unlocking status of the door lock in real time and transmit it to the vehicle control MCU (10) through a PWM signal.

3. The concealed handle with a car door opening or closing warning function as described in claim 1, characterized in that: The lower trim panel (3) is equipped with a linkage switch (50) and a handle buffer pad (51).