CN216249152U

CN216249152U - Touch device with vibration feedback

Info

Publication number: CN216249152U
Application number: CN202122302730.5U
Authority: CN
Inventors: 王海燕
Original assignee: Beer Haila Temperature Control System Shanghai Co ltd
Current assignee: Beer Haila Temperature Control System Shanghai Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-04-08
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a touch device with vibration feedback, which comprises a panel bracket and a PCB main controller arranged in the panel bracket, wherein the PCB main controller is electrically connected with a touch panel and a vibration actuator, the panel bracket comprises a fixed part and a moving part, a spring structure is arranged between the fixed part and the moving part, a stress sensor is arranged on the spring structure, the stress sensor is electrically connected with the PCB main controller, and the touch panel and the vibration actuator are arranged on the moving part. According to the utility model, the resistance-type stress sensor is arranged on the spring structure, so that the elastic deformation of the spring structure caused by the pressure applied to the touch panel by the finger is converted into the change of the resistance value, the finger pressure can be back-calculated and the value is sent to the PCB main controller in real time, the PCB main controller outputs a vibration request signal to the vibration actuator according to the received pressure value, the vibration amplitude of the vibration actuator can be controlled, and the strength control of vibration feedback is realized.

Description

Touch device with vibration feedback

Technical Field

The utility model relates to the technical field of touch feedback, in particular to a touch device with vibration feedback.

Background

At present, most of automobile interior products adopt an interactive mode of key and knob entity input, and with the high-speed development of technologies, more and more manufacturers upgrade the current man-machine interactive mode through the application of touch technologies, voice and the like. The application of the touch technology brings the requirement of vibration feedback, the vibration feeling which is subjectively felt by a human body is required to be uniform when keys in different areas are touched, the uniformity of the vibration feeling is realized by adopting a plurality of vibration motors or placing one piezoelectric ceramic on each touch key in the prior art, the number of the motors or the piezoelectric ceramics required by the scheme is large, corresponding fixed parts and electrical connection are required to be added along with the increase of the number of the motors or the piezoelectric ceramics, the assembly man-hour is increased, and one motor cannot be placed on each touch key due to the limitation of the structural space, so that the vibration feeling of each touch key cannot meet the requirement.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the prior art, the utility model provides the touch device with the vibration feedback, so that the cost is saved, and the vibration sense is uniform.

In order to achieve the technical effects, the utility model provides a touch device with vibration feedback, which comprises a panel bracket and a PCB main controller arranged in the panel bracket, wherein the PCB main controller is electrically connected with a touch panel and a vibration actuator, the panel bracket comprises a fixed part and a moving part, a spring structure is arranged between the fixed part and the moving part, a stress sensor is arranged on the spring structure and is electrically connected with the PCB main controller, and the touch panel and the vibration actuator are arranged on the moving part.

Preferably, the stress sensor is a resistance type stress sensor.

Preferably, the vibration actuator is a voice coil motor.

Preferably, the touch panel comprises a wood grain panel with an IML process and a capacitive touch membrane, and the capacitive touch membrane is arranged between the back surface of the wood grain panel and the moving part.

Preferably, a light guide is disposed on the moving portion of the back surface of the touch panel, and the light guide is electrically connected to the PCB main controller.

Compared with the prior art, the utility model has the beneficial effects that:

1. the panel support is composed of the fixed part and the moving part, the two parts are elastically connected through the spring structure, the vibration of the vibration actuator can be effectively transmitted to the operation area of the touch panel, the vibration of the operation area of the touch panel cannot be reduced by transmitting the vibration to other positions through the panel support, the vibration sense control of the touch keys on the whole touch panel is realized by adopting one vibration actuator, the cost and the assembly time are reduced, the vibration sense output by the touch keys on the whole touch panel is consistent, and the experience of uniform vibration sense is provided;

2. through set up resistance-type stress sensor at the spring structure, the elastic deformation of the spring structure that leads to with the pressure that the finger was applyed on touch panel changes for resistance value, can back work out finger pressure and send this value to PCB main control unit in real time, and PCB main control unit exports vibration request signal to the vibration executor according to the pressure value of receiving, can control the vibration range of vibration executor, realizes the strong and weak control to the sense of vibration feedback.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a touch device with vibration feedback according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a touch device with vibration feedback, which can be applied near a door handle beside a passenger, and the passenger can start or stop or adjust the temperature of the area where the passenger belongs and the position of a seat by touching a panel of the touch device.

The touch device with vibration feedback mainly comprises a touch panel, a panel bracket, a PCB main controller 13 and a vibration actuator 14. The touch panel and the vibration actuator 14 are electrically connected to the PCB main controller 13, and are controlled by a touch processing module and a vibration processing module of the PCB main controller 13. The PCB main controller 13 may be a PCB circuit board installed inside the panel bracket. The touch panel includes a wood grain panel 17 with an IML process and a capacitive touch diaphragm 11, the capacitive touch diaphragm 11 being disposed between a back surface of the wood grain panel 17 and an outer side surface of the moving part 122. The vibration actuator 14 is mounted inside the panel bracket.

The panel bracket further includes a fixed portion 121 and a moving portion 122, a spring structure 15 is disposed between the fixed portion 121 and the moving portion 122, a stress sensor 16 is disposed on the spring structure 15, the stress sensor 16 is electrically connected to a resistance signal measuring module of the PCB main controller 13, and the touch panel and the vibration actuator 14 are respectively mounted on the front and back of the moving portion 122. The spring structure 15 is preferably a conical spring, the lower end of the spring structure is wider than the upper end of the spring structure, the lower end of the spring structure is located on the upper surface of the fixed portion 121, the upper end of the spring structure is located on the lower surface of the moving portion 122, one side of the lower surface of the moving portion 122 further extends downwards to form a convex column, the vibration actuator 14 can adopt a voice coil motor, the vibration actuator 14 is fixed on the lower end surface of the convex column and is close to the position of the PCB main controller 13, the PCB main controller 13 is fixed on the upper surface of the fixed portion 121 of the panel bracket, or the PCB main controller 13 is supported and fixed inside the panel bracket by adopting a bracket.

The stress sensor 16 is preferably a resistance-type stress sensor, and can convert the elastic deformation of the spring structure 15 caused by the pressure applied by the finger on the touch panel into a resistance value change, back calculate the finger pressure and send the value to the PCB main controller 13 in real time, a resistance signal measuring module of the PCB main controller 13 outputs a vibration request signal to the vibration actuator 14 according to the received pressure value, the vibration actuator 14 is controlled to vibrate at a corresponding vibration amplitude, the vibration is transmitted to the motion part 122 and the touch panel, and a user can sense the vibration feedback equivalent to the pressure applied by the finger of the user, so that personalized customization is realized.

As a preferred embodiment of the present invention, a wood grain panel 17 with IML process is disposed on the outer surface of the touch panel, and a light guide 18 is disposed on the moving portion 122 on the back surface of the touch panel, wherein the light guide 18 is electrically connected to the PCB main controller 13 and is controlled by the LED light emitting module on the PCB main controller 13 to emit light. Through the wood grain panel 17 and the light guide 18 with the IML technology, the invisible character backlight effect, the wood grain-like panel effect and the paint spraying effect with wood grain texture in the shutdown state can be realized.

The working principle of the touch device with vibration feedback in the embodiment of the utility model is as follows:

the passenger applies a certain pressure to the predetermined characters (such as an adjustable switch) or the touch keys (the touch panel can be provided with the touch keys for different functions) of the touch panel through a finger, the pressure applied by the finger is simultaneously applied to the moving part 122 of the panel bracket, so that the spring structure 15 is elastically deformed, the resistance value of the resistance type stress sensor 16 mounted on the spring structure 15 is changed, the finger pressure is calculated back, the pressure value is sent to the PCB main controller 13 in real time, the PCB main controller 13 outputs a vibration request signal to the vibration actuator 14 according to the received pressure value, the vibration actuator 14 vibrates according to the amplitude and the frequency requested by the request signal, and the vibration is uniformly transmitted to the touch panel through the spring structure 15 and the moving part 122 of the panel bracket and is fed back to the passenger.

The panel support is composed of the fixed part and the moving part, the two parts are elastically connected through the spring structure, vibration of the vibration actuator can be effectively transmitted to the operation area of the touch panel, vibration of the touch panel operation area can not be reduced by transmitting the vibration to other positions through the panel support, vibration sense control of touch keys on the whole touch panel is achieved through the vibration actuator, cost and assembly time are reduced, vibration sense output by the touch keys on the whole touch panel is consistent, and experience of uniform vibration sense is provided.

Furthermore, by arranging the resistance-type stress sensor on the spring structure, the elastic deformation of the spring structure caused by the pressure applied to the touch panel by the fingers is converted into resistance value change, the finger pressure can be back calculated and the value can be sent to the PCB main controller in real time, the PCB main controller outputs a vibration request signal to the vibration actuator according to the received pressure value, the vibration amplitude of the vibration actuator can be controlled, and the strength control of vibration feedback is realized.

The parts not involved in the present invention are the same as or can be implemented by the prior art. Although embodiments of the present invention have been described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a touch device with vibration feedback which characterized in that: including the panel support and install in PCB main control unit in the panel support, PCB main control unit electric connection has touch panel and vibration executor, the panel support includes fixed part and motion part, fixed part with be equipped with spring structure between the motion part, the structural stress sensor that is equipped with of spring, stress sensor electric connection in PCB main control unit, touch panel with the vibration executor install in on the motion part.

2. The touch device with vibration feedback of claim 1, wherein: the stress sensor is a resistance type stress sensor.

3. The touch device with vibration feedback of claim 1, wherein: the vibration actuator employs a voice coil motor.

4. The touch device with vibration feedback of claim 1, wherein: the touch panel comprises a wood grain panel with an IML process and a capacitive touch membrane, and the capacitive touch membrane is arranged between the back surface of the wood grain panel and the moving part.

5. The touch device with vibration feedback of claim 4, wherein: and a light guide body is arranged on the motion part on the back surface of the touch panel and is electrically connected with the PCB main controller.