Steering wheel button with key feedback structure

Abstract

The utility model discloses a steering wheel button with a button feedback structure, which comprises a steering wheel main body, a central framework is assembled in the center of the interior of the steering wheel main body, and control cross beams are mounted at two ends of the central framework; a button groove is formed in the front end of the control cross beam, and a control button is inserted into the button groove. An induction key is assembled at the end part of the control button, and a feedback mechanism is assembled in the induction key; the feedback mechanism comprises a pressure sensor, an analog-to-digital conversion (ADC) chip, a main control chip, a light-emitting diode (LED) driving chip and an LED unit; according to the arrangement of the steering wheel button with the button feedback structure, the pressure sensor senses a pressure signal of the button and converts the pressure signal into an electric signal, the ADC chip converts the electric signal into a digital signal, the main control chip generates a corresponding control signal according to the digital signal, and the LED driving chip converts the control signal into an LED driving signal to drive and lighten the LED unit, so that the steering wheel button with the button feedback structure is simple in structure and convenient to use. Real and visual key feedback is realized, and the user experience is good.

Description

Technical Field

[0001] This utility model relates to the field of steering wheel button technology, specifically a steering wheel button with a button feedback structure. Background Technology

[0002] A steering wheel is a wheel-shaped device used to control the direction of travel in vehicles such as cars, ships, and airplanes. Its function is to convert the force exerted by the driver on the edge of the steering wheel into torque and transmit it to the steering shaft. The gear system introduced between the driver and the wheels in the steering wheel provides flexible operation and effectively isolates the vehicle from severe vibrations from the road.

[0003] In the prior art, a number of buttons are set on the surface of the car steering wheel to quickly activate and deactivate some functions in the car, thereby enhancing the handling of the car. However, the touch control device of the car steering wheel button in the prior art executes the corresponding operation commands through user touch, but does not have the function of button feedback. The user experience needs to be improved. Therefore, the prior art needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a steering wheel button with a button feedback structure, so as to solve the problem mentioned in the background art that the touch button device of the car steering wheel button in the prior art does not have the function of button feedback when the user touches to execute the corresponding operation command, and the user experience needs to be improved.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steering wheel button with a button feedback structure, comprising a steering wheel body, a central frame assembled at the center of the steering wheel body, and control beams installed at both ends of the central frame;

[0006] The front end of the control beam is provided with a button slot, and a control button is inserted into the inside of the button slot;

[0007] The end of the control button is equipped with a sensor button, and the sensor button is equipped with a feedback mechanism inside.

[0008] The feedback mechanism includes a pressure sensor, an analog-to-digital converter (ADC) chip, a main control chip, an LED driver chip, and an LED unit.

[0009] The pressure sensor is used to sense the pressure signal of the button and convert the pressure signal into an electrical signal. The analog-to-digital converter (ADC) chip is connected to the pressure sensor and is used to convert the electrical signal output by the pressure sensor into a digital signal.

[0010] The main control chip is connected to the ADC chip and is used to acquire the digital signal output by the ADC chip and generate a control signal based on the digital signal. The LED driver chip is connected to the main control chip and is used to convert the control signal into an LED driving signal. The LED unit is connected to the LED driver chip and is used to receive the LED driving signal and start emitting light based on the LED driving signal.

[0011] As a preferred embodiment of the present invention, a steering wheel button with a button feedback structure is provided, wherein the control button and the button slot are connected by a snap-fit ​​structure. The snap-fit ​​structure includes a snap-fit ​​block installed at the end of the control button and a snap-fit ​​groove opened inside the button slot. The snap-fit ​​block is snapped into the snap-fit ​​groove. Both ends of the snap-fit ​​block, which has an arc surface, have convex surfaces. Both sides of the snap-fit ​​groove have concave surfaces.

[0012] As a preferred embodiment of the present invention, a steering wheel button with a button feedback structure is provided, wherein a filling cavity is provided inside the card block, and an elastic element is installed inside the filling cavity.

[0013] As a preferred embodiment of the present invention, a steering wheel button with a button feedback structure is provided, wherein a sealing ring is fitted around the control button, and the outer wall of the sealing ring is fitted into the inner wall of the button groove.

[0014] As a preferred embodiment of the present invention, a steering wheel button with a button feedback structure is provided, wherein the sealing ring has an internal cavity and a filling pad is installed inside the cavity.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the design of the steering wheel button with a button feedback structure is reasonable;

[0016] The pressure sensor detects the pressure signal of the button and converts it into an electrical signal. The ADC chip converts the electrical signal into a digital signal. The main control chip generates a corresponding control signal based on the digital signal. The LED driver chip converts the control signal into an LED driving signal to drive the LED unit to light up. The structure is simple and achieves realistic and intuitive button feedback, resulting in a good user experience. Attached Figure Description

[0017] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the central skeleton of this utility model;

[0019] Figure 3 This is a schematic diagram of the snap-fit ​​structure of this utility model;

[0020] Figure 4This is a schematic diagram of the sealing ring of this utility model.

[0021] Figure 5 This is a functional block diagram of the feedback mechanism of this utility model.

[0022] In the diagram: 1. Steering wheel body; 2. Central frame; 3. Control beam; 4. Sensor button; 5. Sealing ring; 6. Control button; 7. Button slot; 8. Snap-fit ​​structure; 9. Cavity; 10. Filling pad; 12. Locking block; 13. Locking groove; 14. Filling cavity; 15. Arc surface; 16. Elastic element; 17. Sloping convex surface; 18. Sloping concave surface. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution:

[0025] In this technical solution, a steering wheel button with a button feedback structure includes a steering wheel body 1. A central frame 2 is assembled at the center of the steering wheel body 1, and control beams 3 are installed at both ends of the central frame 2. A button slot 7 is opened at the front end of the control beam 3, and a control button 6 is inserted into the button slot 7. A sensing button 4 is assembled at the end of the control button 6, and a feedback mechanism is assembled inside the sensing button 4. The feedback mechanism includes a pressure sensor, an analog-to-digital converter (ADC) chip, a main control chip, an LED driver chip, and an LED unit. The pressure sensor is used to sense the pressure signal of the button and convert the pressure signal into an electrical signal. The ADC chip is connected to the pressure sensor and is used to convert the electrical signal output by the pressure sensor into a digital signal. The main control chip is connected to the ADC chip and is used to collect the digital signal output by the ADC chip and generate a control signal based on the digital signal. The LED driver chip is connected to the main control chip and is used to convert the control signal into an LED driving signal. The LED unit is connected to the LED driver chip and is used to receive the LED driving signal and start emitting light according to the LED driving signal.

[0026] In this technical solution, the steering wheel body 1, the central frame 2, and the control beam 3 are the existing automotive steering wheels. The control beam 3 has an integrated wiring harness inside for connecting the control buttons 6. The control buttons 6 are inserted into the button slot 7 and connected to the integrated wiring harness. The control buttons are operated by the sensing button 4. The LED drive signal is a pulse width modulation (PWM) drive signal. The ADC chip is a Chipsea CS1242 chip, the main control chip is a Rockchip RK3326 chip, and the LED driver chip is an IS31FL3236A-QFLS2-TR chip. In this case, there are two control buttons 6 on the central frame 2. One is used to control the activation and deactivation of the car's cruise control, and the other is used to adjust the car's power mode. The activation and deactivation of the control button 6 can be clearly determined by the illumination and deactivation of the LED drive signal in the feedback mechanism of the sensing button 4.

[0027] In some technical solutions, the control button 6 and the button slot 7 are connected by a snap-fit ​​structure 8. The snap-fit ​​structure 8 includes a snap-fit ​​block 12 installed at the end of the control button 6 and a snap-fit ​​slot 13 opened inside the button slot 7. The snap-fit ​​block 12 is snapped into the snap-fit ​​slot 13, and the end of the snap-fit ​​block 12 is provided with an arc surface 15.

[0028] In this technical solution, after the control button 6 is installed in the button slot 7 and connected to the integrated wiring harness, the control button 6 is installed by the locking block 12 being inserted into the slot 13. The arc surface 15 facilitates the locking block 12 being inserted into the slot 13.

[0029] In some technical solutions, both ends of the card block 12 are provided with inclined convex surfaces 17, and both sides of the card slot 13 are provided with inclined concave surfaces 18.

[0030] In this technical solution, the connection strength between the card block 12 and the card slot 13 can be improved by the cooperation of the inclined convex surface 17 and the inclined concave surface 18.

[0031] In some technical solutions, the card block 12 has a filling cavity 14 inside, and an elastic element 16 is installed inside the filling cavity 14.

[0032] In this technical solution, the elasticity of the card block 12 is improved by the elastic element 16.

[0033] In some technical solutions, the control button 6 is fitted with a sealing ring 5, and the outer wall of the sealing ring 5 is fitted to the inner wall of the button groove 7.

[0034] In this technical solution, after the control button 6 is installed into the button slot 7, the control button 6 and the button slot 7 can be sealed by the sealing ring 5.

[0035] In some technical solutions, the sealing ring 5 has a cavity 9 inside, and a filling pad 10 is installed inside the cavity 9.

[0036] In this technical solution, the tightness of the sealing ring 5 can be improved by filling the pad 10.

[0037] Working process and principle: In use, the control button 6 can be installed into the button slot 7 and connected to the integrated wiring harness, and then snapped in place by the snap-fit ​​structure 8. When the sensing button 4 is operated, the pressure sensor senses the pressure signal of the button and converts it into an electrical signal. The ADC chip converts the electrical signal into a digital signal, and the main control chip generates a corresponding control signal based on the digital signal. The LED driver chip converts the control signal into an LED driving signal to drive and light up the LED unit. The structure is simple, realizes real and intuitive button feedback, and provides a good user experience.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A steering wheel button with a button feedback structure, comprising a steering wheel body (1), characterized in that, The steering wheel body (1) is equipped with a central frame (2) at its internal center, and control beams (3) are installed at both ends of the central frame (2); The front end of the control beam (3) is provided with a button slot (7), and a control button (6) is inserted into the inside of the button slot (7); The end of the control button (6) is equipped with a sensing button (4), and the sensing button (4) is equipped with a feedback mechanism inside. The feedback mechanism includes a pressure sensor, an analog-to-digital converter (ADC) chip, a main control chip, an LED driver chip, and an LED unit. The pressure sensor is used to sense the pressure signal of the button and convert the pressure signal into an electrical signal. The analog-to-digital converter (ADC) chip is connected to the pressure sensor and is used to convert the electrical signal output by the pressure sensor into a digital signal. The main control chip is connected to the ADC chip and is used to acquire the digital signal output by the ADC chip and generate a control signal based on the digital signal. The LED driver chip is connected to the main control chip and is used to convert the control signal into an LED driving signal. The LED unit is connected to the LED driver chip and is used to receive the LED driving signal and start emitting light based on the LED driving signal.

2. A steering wheel button with a button feedback structure according to claim 1, characterized in that, The control button (6) and the button slot (7) are connected by a snap-fit ​​structure (8). The snap-fit ​​structure (8) includes a snap-fit ​​block (12) installed at the end of the control button (6) and a snap-fit ​​slot (13) opened inside the button slot (7). The snap-fit ​​block (12) is snapped into the snap-fit ​​slot (13), and the end of the snap-fit ​​block (12) is provided with an arc surface (15).

3. A steering wheel button with a button feedback structure according to claim 2, characterized in that, Both ends of the card block (12) are provided with inclined convex surfaces (17), and both sides of the card slot (13) are provided with inclined concave surfaces (18).

4. A steering wheel button with a button feedback structure according to claim 3, characterized in that, The card block (12) has a filling cavity (14) inside, and an elastic element (16) is installed inside the filling cavity (14).

5. A steering wheel button with a button feedback structure according to claim 1, characterized in that, The control button (6) is fitted with a sealing ring (5), and the outer wall of the sealing ring (5) is fitted to the inner wall of the button groove (7).

6. A steering wheel button with a button feedback structure according to claim 5, characterized in that, The sealing ring (5) has a cavity (9) inside, and a filling pad (10) is installed inside the cavity (9).

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