Intelligent touch module

Abstract

The utility model provides an intelligent touch module. The intelligent touch module comprises a rigid bottom plate A1; a layer of thin and flexible surface coating film A2; the supporting piece A3 is assembled between the rigid bottom plate A1 and the surface covering film A2 and is used for supporting the surface covering film A2; the supporting piece A3 is hollowed out in a partial area, a tactile sensing actuator A4 is assembled in the supporting piece A3, the lower end of the tactile sensing actuator A4 is fixed to a mounting base A5 through an adhesive, and the mounting base A5 is fixed to the rigid bottom plate A1; the upper end of the tactile sensing actuator A4 is in free contact with the surface covering film A2; and the bottom surface of the rigid bottom plate A1 further comprises a pressure detection circuit, a tactile feedback signal driving circuit and an external interface A8. According to the utility model, an intelligent product control interaction mode can be provided for consumers, so that the consumers can obtain important information and feedback through touch, the accessibility and convenience of product use are improved, and the immersion is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to touch module, especially touch module of intelligent tactile feedback function is provided. BACKGROUND

[0002] Tactile feedback technology provides instant feedback for users by simulating physical contact. When users operate on the touch screen, this feedback can be achieved through vibration or tactile feedback signals, allowing users to feel the real feedback when pressing the button, guiding them to operate more accurately. At present, more and more touch devices begin to introduce tactile feedback technology to improve the use experience of products. However, the miniaturization and functional integration of tactile feedback devices and modules are a challenge.

[0003] The utility model provides an intelligent touch module in view of the current market demand, integrates touch detection, tactile feedback function and one body, compact structure, convenient application developer integrates into the product. Through the implementation of the utility model, an alternative intelligent product control interaction mode can be provided for consumers, so that they can obtain important information and feedback through touch, improve the accessibility and convenience of product use, and enhance the sense of immersion. SUMMARY

[0004] The utility model provides an intelligent touch module, the intelligent touch module includes: rigid bottom plate A1;One thin and flexible surface cover film A2;Supporting piece A3 is assembled between rigid bottom plate A1 and surface cover film A2, and the supporting piece A3 provides support for surface cover film A2;The supporting piece A3 is hollow in partial area, wherein the tactile sensor actuator A4 is assembled, the lower end of tactile sensor actuator A4 is fixed on an installation base A5 through adhesive, and the latter is fixed on rigid bottom plate A1;The upper end of tactile sensor actuator A4 and surface cover film A2 are free contact;The bottom surface of rigid bottom plate A1 further includes pressure detection circuit and tactile feedback signal drive circuit and external interface A8.

[0005] The intelligent touch module further includes a fixed frame A6 for packaging and fixing the rigid bottom plate A1, the surface cover film A2 and the supporting piece A3;The fixed frame A6 is made of rigid material, including metal alloy material or engineering plastic.

[0006] The intelligent touch module further includes an assembly screw hole A7 at the bottom.

[0007] The rigid bottom plate A1 is a multilayer PCB board;The surface cover film A2 is glass, plastic, thin metal or rubber film;The supporting piece A3 is made of insulating polymer with sufficient strength, including silica gel or rubber.

[0008] The fixing mode of the mounting base A5 on the rigid bottom plate A1 includes adhesive, welding, or screw.

[0009] The haptic sensing actuator A4 includes a piezoelectric ceramic layer B1 and an alloy layer B2; wherein the piezoelectric ceramic layer B1 is pressed by multilayer ceramic film, and the alloy layer B2 covers the upper and lower surfaces of the piezoelectric ceramic layer B1; positive and negative electrodes B3 are led out from the piezoelectric ceramic layer B1.

[0010] The upper surface of the rigid bottom plate A1 is further provided with a flexible printed circuit for leading out the electrodes B3 of the haptic sensing actuator to the pressure detection circuit and the haptic feedback signal driving circuit.

[0011] The upper surface of the surface coating film A2 is printed with touch button icons and words; and the gap between the support A3 and the haptic sensing actuator A4 on the upper surface of the rigid bottom plate A1 is provided with an LED lamp.

[0012] The utility model provides a kind of intelligent touch module, integrates touch detection, haptic feedback function and one, compact structure, it is convenient to be applied developer integrated into product. By implementing the utility model, a kind of alternative intelligent product control interaction mode can be provided for consumer, so that they can obtain important information and feedback through touch, improve the accessibility and convenience of product use, enhance immersion.

[0013] Other features and advantages of the present application will become more apparent after reading the detailed description of the embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to clearly illustrate the technical solutions of the present application and embodiments, the drawings involved in the specification are briefly introduced. It should be noted that the drawings are mainly used to illustrate the relationship between the components of the device, the structural features and the advantages brought by the relationship, and are not drawn according to the actual size of the device. Obviously, the drawings only involve limited embodiments, and cannot be understood as a limitation of the present application. Those skilled in the art can easily obtain new embodiments by formal changes according to these drawings.

[0015] Figure 1 is a cross-sectional view of one embodiment of the present application;

[0016] Figure 2 is a longitudinal cross-sectional view of a touch sensor used in one embodiment of the present application;

[0017] Figure 3 is a top view of a touch sensor used in one embodiment of the present application;

[0018] Figure 4is a top view contour schematic diagram of another embodiment of the utility model. DETAILED DESCRIPTION

[0019] The utility model discloses in the specific embodiment of the utility model in combination with the drawings.

[0020] The utility model provides a kind of intelligent touch module, Figure 1 It gives its section view.From the drawing, the intelligent touch module includes: rigid bottom plate A1, which is a multilayer PCB board;Surface film A2, which is a thin and flexible film layer, the material used can be glass, plastic, thin metal or rubber, etc., the film layer needs to be thin enough, and its prominent feature is to have enough flexibility and flexibility;Supporting member A3 assembled between rigid bottom plate A1 and surface film A2, which provides good support for the surface film A2, supporting member A3 is made of insulating polymer with enough strength, such as silicone or rubber, which can absorb part of the impact force and reduce mechanical stress;The supporting member A3 is hollow in part, for assembling tactile sensing actuator A4, the lower end of the tactile sensing actuator A4 is fixed on a mounting base A5 by adhesive, and the latter is fixed on the rigid bottom plate A1, and the fixing mode includes adhesive, welding or screw, the adhesive is a high-performance adhesive with good insulation and thermal conductivity, such as epoxy resin;The upper end of the tactile sensing actuator A4 is in free contact with the surface film A2.

[0021] The intelligent touch module further includes a fixed frame A6 for packaging and fixing the rigid bottom plate A1, surface film A2 and supporting member A3, which is made of rigid material, such as metal alloy material or engineering plastic;The bottom of the touch module is also provided with an assembly screw hole A7 with internal threads, which facilitates the fixation of the touch module on the structural member or bottom plate in the user's product when the touch module is applied.

[0022] The bottom surface of the rigid bottom plate A1 further includes a pressure detection circuit and a tactile feedback signal driving circuit, as well as an external interface A8, which is a flat snap connector, providing electrical connection and control signals to the upper controller.

[0023] Figure 2 And Figure 3 Further, the structure of the tactile sensing actuator A4 is shown. Figure 2 It is a longitudinal section schematic diagram, and from the drawing, the tactile sensing actuator A4 includes piezoelectric ceramic layer B1 and alloy layer B2. The piezoelectric ceramic layer B1 is pressed from multiple layers of ceramic film, and the alloy layer B2 covers the upper and lower surfaces of the piezoelectric ceramic layer B1. Figure 3The top view of the haptic sensing actuator A4 is shown in the figure, and it can be seen that the positive and negative electrodes B3 are led out from the piezoelectric ceramic layer B1, which are used for outputting pressure sensor detection signals and inputting actuator driving signals.

[0024] When the piezoelectric ceramic layer B1 is pressed, a voltage is generated between the two electrodes B3 due to the piezoelectric effect, and after being processed by the pressure detection circuit, the pressing behavior of the user can be identified in real time; conversely, when the actuator needs to generate a haptic feedback vibration signal, the driving signal is input to the electrode B3 through the haptic feedback signal driving circuit, so that the piezoelectric ceramic layer B1 is excited to generate mechanical vibration. The vibration is transmitted and amplified by the alloy layer B2, and drives the surface coating A2 to generate a vibration signal, thereby providing haptic feedback for the user. The piezoelectric ceramic is a lead zirconium titanate PZT ceramic, and the alloy layer B2 is composed of titanium alloy.

[0025] The upper surface of the rigid bottom plate A1 is also provided with a flexible printed circuit (flexible PCB) for leading out the electrodes B3 of the haptic sensing actuator to the pressure detection circuit and the haptic feedback signal driving circuit. The flexible PCB has good flexibility and electrical connection performance, and is suitable for compact application scenarios.

[0026] Figure 4 A top view of another embodiment of the utility model is given, and for the convenience of explaining the internal structure layout, it is assumed that the surface coating A2 is translucent, and the internal structure outline is outlined with a dashed line. This embodiment is a touch module containing a 2x3 haptic sensing actuator matrix, which is used for intelligent control panel application scenarios. At this time, the touch button icons and words can be printed on the upper surface of the surface coating A2, and the LED lamp is designed and assembled in the gap between the rigid bottom plate A1 upper surface and the haptic sensing actuator A4, which is used to illuminate the touch button icons and words printed on the upper surface of the surface coating A2.

[0027] The description of the utility model is given for example, and is not exhaustive or limited to the disclosed form. The selection and description of the embodiments are to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes. Any new embodiment realized by simple transformation, modification, equivalent replacement and improvement within the basic concept, construction principle and spiritual framework of the utility model should be included in the protection scope of the utility model. The scope of the utility model is determined by the appended claims.

Claims

1. An intelligent touch module, characterized in that, The intelligent touch module comprises a rigid bottom plate (A1), a thin and flexible surface film (A2), a support (A3) assembled between the rigid bottom plate (A1) and the surface film (A2) to provide support for the surface film (A2), the support (A3) being hollow in part and having a tactile sensing actuator (A4) assembled therein, the lower end of the tactile sensing actuator (A4) being fixed to a mounting base (A5) by an adhesive, the mounting base (A5) being fixed to the rigid bottom plate (A1), the upper end of the tactile sensing actuator (A4) being in free contact with the surface film (A2), the bottom surface of the rigid bottom plate (A1) further comprising a pressure detection circuit and a tactile feedback signal driving circuit, and an external interface (A8). 2.The intelligent touch module according to claim 1, wherein, The intelligent touch module further comprises a fixed frame (A6) for encapsulating and fixing the rigid bottom plate (A1), the surface film (A2) and the support (A3), the fixed frame (A6) being made of a rigid material, such as a metal alloy or an engineering plastic. 3.The intelligent touch module according to claim 2, wherein, The intelligent touch module further comprises assembly screw holes (A7) at the bottom. 4.The intelligent touch module according to claim 2, wherein, The rigid bottom plate (A1) is a multilayer PCB board, the surface film (A2) is a glass, plastic, thin metal or rubber film, and the support (A3) is made of an insulating polymer with sufficient strength, such as silica gel or rubber. 5.The intelligent touch module according to claim 2, wherein, The mounting base (A5) is fixed to the rigid bottom plate (A1) by an adhesive, welding or screws. 6.The intelligent touch module according to claim 1, wherein, The tactile sensing actuator (A4) comprises a piezoelectric ceramic layer (B1) and an alloy layer (B2), the piezoelectric ceramic layer (B1) being pressed from a multilayer ceramic film, and the alloy layer (B2) being coated on the upper and lower surfaces of the piezoelectric ceramic layer (B1), the piezoelectric ceramic layer (B1) having positive and negative electrodes (B3) led out therefrom. 7.The intelligent touch module according to claim 6, wherein, The rigid bottom plate (A1) further comprises a flexible printed circuit assembled on the upper surface thereof for leading the electrodes (B3) of the tactile sensing actuator to the pressure detection circuit and the tactile feedback signal driving circuit. 8.The intelligent touch module according to any one of claims 1-7, characterized in that, The upper surface of the surface film (A2) is printed with touch button icons and text, and an LED lamp is assembled in the gap between the support (A3) and the tactile sensing actuator (A4) on the upper surface of the rigid bottom plate (A1).

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