CN216697218U

CN216697218U - Pressure sensing capacitance touch pad

Info

Publication number: CN216697218U
Application number: CN202220107883.6U
Authority: CN
Inventors: 刘光华
Original assignee: Shenzhen Huakun Longxin Technology Co ltd
Current assignee: Shenzhen Huakun Longxin Technology Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-07
Anticipated expiration: 2032-01-14

Abstract

The utility model relates to the technical field of electronic products and discloses a pressure sensing capacitance Touch pad which comprises a glass Mylar with an insulating function on the uppermost layer, a linear motor responsible for vibration, a Pcb (printed circuit board) printed with a driving and sensing channel, a pressure sensing steel sheet bracket responsible for fixing a Force Sensor (Fpc), a pressure sensing flexible circuit board Force Sensor (Fpc) responsible for adjusting the pressure, and a steel sheet base responsible for directly connecting and supporting with a steel sheet. The problems of single touch control, lack of diversified pressure sense and vibration feedback of the touch panel in the market can be effectively solved. Especially, in the application of a notebook computer, more intelligent feedback and more comfortable experience can be brought to a user.

Description

Pressure induction capacitance touch pad

Technical Field

The utility model relates to the technical field of electronic products, in particular to a pressure sensing capacitance touch pad.

Background

With the development of the electronic technology industry, a simple capacitive touch pad is single in touch form and lacks diversified pressure-sensitive vibration feedback, and particularly in the application of a notebook computer, users and software have multiple functions and lack comfortable human-computer interaction experience, so that the development of the notebook computer towards more intelligent, diversified and perfect directions is limited.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the pressure sensing capacitance touch pad provided by the utility model has the advantages that the pressure vibration effect can be sensed by people, more diversified and more comfortable tactile feedback is brought, and the problem that the development of a notebook computer towards a more intelligent, diversified and perfect direction is limited is solved.

(II) technical scheme

In order to achieve the purpose of sensing the pressure vibration effect to people and bringing more diversified and more comfortable tactile feedback, the utility model provides the following technical scheme: the utility model provides a forced induction electric capacity touch pad, includes mylar, linear motor, Pcb board, pressure steel sheet support and steel sheet base, its characterized in that: the PCB is characterized in that an integrated chip area is arranged inside the PCB, Mylar is bonded on the front side of the PCB through a strong double faced adhesive tape, a linear motor is welded and is attached to the back side of the PCB through the strong double faced adhesive tape, the PCB is fixedly connected with a pressure-sensitive flexible circuit board through a pressure-sensitive steel sheet support, a steel sheet base is connected with the pressure-sensitive steel sheet support through a screw, a touch chip is welded on a fixed chip welding point of the PCB, a micro control processor is welded on the fixed chip welding point of the PCB, a motor control chip is welded on the fixed chip welding point of the PCB, and the PCB is connected with the end of the whole mainboard through an Fpc flexible flat cable.

Preferably, the Mylar is glass Mylar with an insulating function, the Pcb is a Pcb printed with a driving channel and a sensing channel, the pressure-sensitive flexible printed circuit board is a pressure-sensitive flexible printed circuit board Force Sensor (Fpc) responsible for adjusting pressure, and the touch chip is a touch chip responsible for reporting a touch coordinate point signal.

Preferably, the micro control processor is an Mcu chip responsible for processing the reported touch coordinates, pressure and vibration signals.

Preferably, the mylar and the Pcb can sense a capacitance value when a finger touches the mylar, and the pressure-sensitive flexible circuit board is fixed on the pressure-sensitive steel sheet support and can sense pressure acting on the mylar.

Preferably, the mylar, the Pcb and the pressure sensitive flexible printed circuit board can generate instruction information according to the change of the capacitance value, and can transmit the instruction information to the touch control chip, the micro control processor and the motor control chip.

Preferably, the mylar is arranged on the front surface of the Pcb, the linear motor is welded on the back surface of the Pcb, the pressure sensitive flexible circuit board is adhered to the front surface of the pressure sensitive steel sheet bracket, the pressure sensitive steel sheet bracket is fixedly attached to the back surface of the Pcb in a screw mode through the pressure sensitive steel sheet bracket, and the pressure sensitive flexible circuit board is connected with the Pcb in a connector mode.

Preferably, the Pcb is connected to the main board in the form of an FPC through a rear connector.

(III) advantageous effects

Compared with the prior art, the utility model provides the pressure sensing capacitance touch pad, which has the following beneficial effects:

1. this forced induction electric capacity touch pad, through the capacitanc touch pad of simple, the touch form is single, lacks diversified pressure and feels vibrations feedback, especially on notebook computer uses, this utility model, uses to get up and accords with ergonomic more, in the use, can give other people and experience pressure vibrations effect, brings more diversified, more comfortable tactile feedback.

Drawings

Fig. 1 is a schematic diagram of an explosive structure according to the present invention.

In the figure: 1. mylar; 2. a linear motor; 3. a Pcb board; 4. a pressure-sensitive steel sheet bracket; 5. a pressure sensitive flexible circuit board; 6. a steel sheet base; 7. a touch chip; 8. a micro-control processor; 9. and a motor control chip.

Detailed Description

The present invention will be described in further detail with reference to the drawings, wherein like elements are designated by like reference numerals, wherein the terms "front", "rear", "left", "right", "upper" and "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular element.

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.

Example one

Referring to fig. 1, the present invention provides a technical solution: a pressure induction capacitance touch pad comprises a Mylar 1, a linear motor 2, a Pcb plate 3, a pressure induction steel sheet bracket 4 and a steel sheet base 6, wherein an integrated chip area is arranged inside the Pcb plate 3, the Mylar 1 is adhered to the front side of the Pcb plate 3 through a strong double-sided adhesive tape, the linear motor 2 is welded and adhered to the back side of the Pcb plate 3 through the strong double-sided adhesive tape, the Pcb plate 3 is fixedly connected with a pressure induction flexible circuit board 5 through the pressure induction steel sheet bracket 4, the steel sheet base 6 is connected with the pressure induction steel sheet bracket 4 through a screw, a touch chip 7 is welded on a fixed chip welding point of the Pcb plate 3, a micro control processor 8 is welded on a fixed chip welding point of the Pcb plate 3, a motor control chip 9 is welded on a fixed chip welding point of the Pcb plate 3, the Pcb plate 3 is connected with the end of the whole mainboard through an Fpc flexible flat cable, the Mylar 1 is glass with an insulation function, the Pcb plate 3 is a Pcb plate printed with a driving and an induction channel, the pressure-sensitive flexible circuit board 5 is a pressure-sensitive flexible circuit board Force Sensor (Fpc) responsible for adjusting the pressure, the touch chip 7 is a touch chip responsible for reporting a touch coordinate point signal, the micro-control processor 8 is an Mcu chip responsible for processing the reported touch coordinate, pressure-sensitive and vibration signal, the Mylar 1 and the Pcb board 3 can sense the capacitance value when a finger touches, the pressure-sensitive flexible circuit board 5 is fixed on the pressure-sensitive steel sheet bracket 4 and can sense the pressure acting on the Mylar 1, the Pcb board 3 and the pressure-sensitive flexible circuit board 5 can generate instruction information according to the change of the capacitance value and can transmit the instruction information to the touch chip 7, the micro-control processor 8 and the motor control chip 9, the Mylar 1 is arranged on the front side of the Pcb board 3, the linear motor 2 is welded on the back side of the Pcb board 3, the pressure-sensitive flexible circuit board 5 is adhered on the front side of the pressure-sensitive steel sheet bracket 4, the pressure sensitive steel sheet bracket 4 is fixedly clung to the back of the Pcb 3 in a screw mode through the pressure sensitive steel sheet bracket 4, the pressure sensitive flexible circuit board 5 is connected with the Pcb 3 in a connector mode, and the Pcb 3 is connected with the mainboard in an FPC mode through a back connector.

The integrated chip area is welded on the surface of the Pcb 3, mainly comprises a touch control chip 7, a micro control processor 8 and a motor control chip 9, and is connected with the pressure-sensitive flexible circuit board 5 through a connector.

Further, the capacitance values of the Mylar 1 and the Pcb board 3 can be sensed when the fingers touch the board, and the pressure-sensitive flexible circuit board 5 is fixed on the steel sheet support 4 and can sense the pressure acting on the Mylar 1 and the Pcb board 3.

Further, the product Pcb 3, the product steel sheet support 4 and the pressure sensitive flexible circuit board 5 can generate instruction information according to the change of the capacitance value, and can transmit the instruction information to the Pcb back integrated chip area.

Further, a product Mylar 1 is adhered to the front surface of the Pcb plate 3, a product linear motor 2 is welded to the back surface of the product Pcb plate 3, a product steel sheet support 4 is fixedly attached to the back surface of the Pcb plate 3 in a screw mode through an external base, and a pressure-sensitive flexible circuit board 5 is connected with the product Pcb plate 3 in a connector mode. The product steel sheet base 6 is connected with the product steel sheet 4 bracket through a screw, the product touch control chip 7 is welded on the fixed chip welding point of the product Pcb plate 3 in a welding mode, the micro control processor 8 is welded on the fixed chip welding point of the product Pcb plate 3 in a welding mode, the motor control chip 9 is welded on the fixed chip welding point of the product Pcb plate 3 in a welding mode,

further, the product Pcb 3 is connected with the whole mainboard in the form of Fpc through a back connector.

When the TOUCH panel is used, when a finger touches the insulating material Mylar 1 on the back of the Pcb 3, the sensing and driving circuit channels printed on the back of the Pcb 3 can sense the capacitance of the finger, the TOCH IC can receive and process capacitance data sensed by different TOUCH positions and convert the capacitance data into X-axis and Y-axis coordinate signals of different positions, and the TOUCH IC reports the coordinate signals to the main control chip MCU for processing;

force + sensor + FPC principle: pressure flexible line way board 5, through the supporting role of support, fixed laminating on the support, when finger touch, when pressing, can produce certain deformation to pressure flexible line way board 5 and support, pressure sensor in the pressure flexible line way board 5 can be according to the deformation degree, produces the not pressure value data of equidimension to report the pressure value data for main control chip MCU through the connector on the Pcb board 3 and handle.

Linear motor 2 principle: the spring system is composed of a spring, a mass block and a coil, wherein the spring suspends the coil inside the linear motor, the coil is connected with the magnetic mass block, electric energy is directly converted into linear motion mechanical energy, a transmission device of any intermediate conversion mechanism is not needed, the linear motor 2 linearly vibrates left and right, the frequency and the amplitude of vibration are controllable, and special IC driving is needed. Compared with a common rotor motor, the linear motor 2 has the advantages of high response speed, strong vibration sense, vibration direction and adjustable vibration frequency and waveform, thereby realizing more complex and various customized vibration effects.

Motor control chip 9 principle: the linear motor 2 is driven to send out vibration, strong vibration, weak vibration, long vibration, short vibration and other instructions to the linear motor 2, and corresponding instructions are sent to the linear motor by receiving different instructions sent by the main control.

MCu principle: the functions of bridging and switching are realized, signal data sent by each end part are mixed and bridged, and then the signal data are sent back to each reporting end; or selects a path of signal from the signals to be sent to other reporting terminals,

the product serves as a main control chip, can receive reported signals, process data and send instructions, can receive signal coordinates reported by the touch control chip 7, the motor control chip 9 and the Force + sensor + FPC, performs integration processing, and then sends back to a reporting end, or selects a path of signal from the signals to send to other reporting ends.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 forced induction electric capacity touch pad, includes mylar (1), linear motor (2), Pcb board (3), pressure sensitive steel sheet support (4) and steel sheet base (6), its characterized in that: pcb board (3) inside is equipped with the integrated chip region, and wheat draws (1) to bond at Pcb board (3) openly through powerful double faced adhesive tape, linear motor (2) welding and with the laminating of powerful double faced adhesive tape at the Pcb board (3) back, Pcb board (3) are through pressure steel sheet support (4) fixedly connected with pressure flexible line board (5), steel sheet base (6) through the screw with pressure steel sheet support (4) meet, the welding has touch chip (7) on the fixed chip welding point of Pcb board (3), the welding has micro control treater (8) on the fixed chip welding point of Pcb board (3), the welding has motor control chip (9) on the fixed chip welding point of Pcb board (3), Pcb board (3) link to each other through the soft winding displacement of Fpc and whole mainboard end.

2. A pressure sensitive capacitive touch pad as recited in claim 1, wherein: the Mylar touch screen is characterized in that the Mylar touch screen is made of glass with an insulation function, the Pcb (3) is a Pcb printed with a driving channel and a sensing channel, the pressure-sensitive flexible circuit board (5) is a pressure-sensitive flexible circuit board Force Sensor (Fpc) responsible for adjusting the pressure, and the touch chip (7) is a touch chip responsible for reporting a touch coordinate point signal.

3. A pressure sensitive capacitive touch pad as recited in claim 1, wherein: the micro control processor (8) is an Mcu chip which is responsible for processing the reported touch coordinates, pressure and vibration signals.

4. A pressure sensitive capacitive touch pad as recited in claim 1, wherein: the Mylar (1) and the Pcb (3) can sense the capacitance value when the finger touches, and the pressure-sensitive flexible circuit board (5) is fixed on the pressure-sensitive steel sheet support (4) and can sense the pressure acting on the Mylar (1).

5. A pressure sensitive capacitive touch pad as recited in claim 1, wherein: the Mylar board (1), the Pcb board (3) and the pressure-sensitive flexible circuit board (5) can generate instruction information according to the change of the capacitance value, and the instruction information can be transmitted to the touch control chip (7), the micro control processor (8) and the motor control chip (9).

6. A pressure sensitive capacitive touch pad as recited in claim 1, wherein: the Mylar (1) is arranged on the front face of the Pcb plate (3), the linear motor (2) is welded on the back face of the Pcb plate (3), the pressure sensitive flexible circuit board (5) is adhered to the front face of the pressure sensitive steel sheet support (4), the pressure sensitive steel sheet support (4) is fixedly attached to the back face of the Pcb plate (3) in a screw mode through the pressure sensitive steel sheet support (4), and the pressure sensitive flexible circuit board (5) is connected with the Pcb plate (3) in a connector mode.

7. A pressure sensitive capacitive touch pad as recited in claim 1, wherein: the Pcb (3) is connected to the main board in the form of an FPC through a rear connector.