CN215416596U

CN215416596U - Pressure type mouse encoder device

Info

Publication number: CN215416596U
Application number: CN202121371024.XU
Authority: CN
Inventors: 童宗伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2022-01-04
Anticipated expiration: 2031-06-18

Abstract

The utility model provides a pressure type mouse encoder device, comprising: the encoding mechanism is arranged in the mouse and the operating mechanism is at least partially exposed out of the mouse; the coding mechanism comprises an MCU unit and a pressure-sensitive capacitor which are arranged on the PCB; the pressure-sensitive capacitor comprises a conductor disc and an elastic metal piece, wherein the conductor disc is attached to the surface of the PCB, and the elastic metal piece is arranged on the front surface of the conductor disc; the operating mechanism comprises a roller structure arranged on the operating mechanism, and the roller structure comprises a roller, a support and a pressure output part connected with the roller through a wheel shaft. The pressure encoder formed by matching the pressure sensing capacitor connected to the MCU unit with the roller structure has no mechanical contact, the service life of the pressure encoder is far longer than that of a traditional mechanical contact type encoder, and the pressure can be converted into the rotating speed.

Description

Pressure type mouse encoder device

Technical Field

The utility model relates to the technical field of mice, in particular to a pressure type mouse encoder device.

Background

The mouse is an external input device of a computer, is also an indicator for positioning longitudinal and transverse coordinates of a computer display system and is named like a mouse. The mouse is used for enabling the operation of the computer to be simpler, more convenient and faster, and replacing the complicated instructions of the keyboard.

When the mouse is operated, the action needs to be converted into a command to be input, the conversion process is also called an encoding process, and after receiving the encoding, the computer decodes the encoding to identify the meaning of the command so as to respond to the command.

At present, the coding in the mouse is basically implemented by using mechanical contacts, for example, by pressing switches with certain elasticity on a shaft in a mouse pulley, the switches are mechanical contacts used, and the mechanical contacts are seriously worn and have short service life after being used for a long time, and the mechanical contacts also have the defects of low sensitivity and the like.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention has been made to provide a pressure type mouse encoder apparatus that overcomes or at least partially solves the above problems.

In order to solve the above problems, the present invention discloses a pressure type mouse encoder device, comprising: the encoding mechanism is arranged in the mouse and the operating mechanism is at least partially exposed out of the mouse;

the coding mechanism comprises an MCU unit and a pressure-sensitive capacitor which are arranged on the PCB; the fixed end of the pressure sensing capacitor is fixedly arranged on the PCB and is electrically connected to the GPIO interface of the MCU unit, and the elastic end of the pressure sensing capacitor is grounded;

the operating mechanism is provided with a roller structure, the roller structure comprises a roller, a bracket and a pressure output piece, and the pressure output piece is in transmission connection with the roller through a wheel shaft; the pressure output piece is perpendicular to the wheel shaft and is symmetrically arranged relative to the connecting position of the wheel shaft; the pressure sensing capacitor is at least two corresponding to two ends of the pressure output piece, and the two ends of the pressure output piece are in press contact with the elastic end; the roller is at least partially exposed out of the mouse and is arranged on the bracket through a wheel shaft;

when the roller rolls, the pressure output piece is driven by the wheel shaft connected with the roller to press the elastic end, so that the capacitance value of the pressure-sensitive capacitor is changed through pressure, and the pressure-sensitive capacitor is converted into coding control information according to the changed capacitance value.

Preferably, the fixed end of the pressure-sensitive capacitor is a conductor disc arranged on the surface of the PCB in a fitting manner.

Preferably, the elastic end is an elastic metal piece arranged on the front surface of the conductor disc, and the elastic metal piece is kept in a separated state from the conductor disc in the elastic stroke of the elastic metal piece.

Preferably, one end of the elastic metal piece is welded on the PCB and is grounded through a pad of the PCB;

the elastic metal piece is a metal elastic piece or a metal spring.

Preferably, the metal spring is a tower spring.

Preferably, the conductor disc is a metal disc.

Preferably, the metal disc is mainly a copper disc or a silver disc or a zinc disc or a metal alloy disc.

Preferably, the wheel shaft extends to the other side of the roller through a bracket and is in contact connection with an elastic key arranged on the operating mechanism; the other side is the side opposite to the pressure output part;

the output end of the elastic key is electrically connected with the MCU.

Preferably, the PCB board and the operating mechanism are integrally or separately provided.

Preferably, the split arrangement comprises: the operating mechanism is fixedly arranged on the upper layer of the PCB or the operating mechanism is fixedly arranged on the lower layer of the PCB;

when the operating mechanism is fixedly arranged on the upper layer of the PCB, a hole which enables the elastic metal piece to protrude out of the operating mechanism is arranged at the position of the elastic metal piece corresponding to the operating mechanism;

when the operating mechanism is fixedly arranged on the lower layer of the PCB, the bracket penetrates through the PCB and protrudes out of the PCB.

The utility model has the following advantages: through the coding mechanism arranged in the mouse and the operating mechanism at least partially exposed out of the mouse; the coding mechanism comprises an MCU unit and a pressure-sensitive capacitor which are arranged on the PCB; the fixed end of the pressure sensing capacitor is fixedly arranged on the PCB and is electrically connected to the GPIO interface of the MCU unit, and the elastic end of the pressure sensing capacitor is grounded; the operating mechanism is provided with a roller structure, the roller structure comprises a roller, a bracket and a pressure output piece, and the pressure output piece is in transmission connection with the roller through a wheel shaft; the pressure output piece is perpendicular to the wheel shaft and is symmetrically arranged relative to the connecting position of the wheel shaft; the pressure sensing capacitor is at least two corresponding to two ends of the pressure output piece, and the two ends of the pressure output piece are in press contact with the elastic end; the roller is at least partially exposed out of the mouse and is arranged on the bracket through a wheel shaft; when the roller rolls, the pressure output piece is driven by the wheel shaft connected with the roller to press the elastic end, so that the capacitance value of the pressure-sensitive capacitor is changed through pressure, and the pressure-sensitive capacitor is converted into coding control information according to the changed capacitance value.

The pressure encoder formed by the pressure sensing capacitor connected to the MCU unit and the roller structure has no mechanical contact, and the service life of the pressure encoder is far longer than that of the traditional mechanical contact type encoder.

Drawings

FIG. 1 is a schematic view of an encoding mechanism of a pressure type mouse encoder device according to the present invention;

FIG. 2 is a schematic diagram of an operating mechanism of a pressure type mouse encoder device according to the present invention;

FIG. 3 is a schematic top view of a pressure-sensitive capacitor structure of a pressure-type mouse encoder apparatus according to the present invention;

FIG. 4 is a schematic diagram of a pressure-sensitive capacitor structure of an encoder device of a pressure-type mouse according to the present invention.

The drawings illustrate the following:

1. an encoding mechanism; 2. an operating mechanism; 3. a PCB board; 4. an MCU unit; 21. a roller; 22. a support; 23. a wheel axle; 24. a pressure output member; 25. an elastic key; 30. a pressure-sensitive capacitor; 31. a conductor disc; 32. an elastic metal member; 33. and a bonding pad.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof.

One of the core ideas of the utility model is that the coding mechanism is arranged in the mouse and the operating mechanism is at least partially exposed out of the mouse; the coding mechanism comprises an MCU unit and a pressure-sensitive capacitor which are arranged on the PCB; the pressure-sensitive capacitor comprises a conductor disc and an elastic metal piece, wherein the conductor disc is attached to the surface of the PCB, the elastic metal piece is arranged on the front surface of the conductor disc, the conductor disc is electrically connected to a GPIO (general purpose input/output) interface of the MCU, the elastic metal piece is connected with the ground, and the elastic metal piece is kept in a separation state with the conductor disc in the elastic stroke; the operating mechanism comprises a roller structure arranged on the operating mechanism, and the roller structure comprises a roller, a bracket and a pressure output part connected with the roller through a wheel shaft; the roller is at least partially exposed out of the mouse and is arranged on the bracket through a wheel shaft; the pressure output piece is in press contact with the elastic metal piece. When the mouse works, the capacitance value of the pressure-sensitive capacitor is changed through the pressure of the roller structure, and the capacitance value is converted into coding control information according to the changed capacitance value.

It should be noted that, in any embodiment of the present invention, the PCB (Printed Circuit Board) Board, the MCU (micro controller Unit), the GPIO (General-purpose Input/Output) interface, the IO (Input/Output) interface, and the ground GND (ground in an electrical wire or a Circuit) represents a ground or a 0 wire, and the ground is a negative electrode of the power supply for the power supply and the Circuit.

Referring to fig. 1 to 4, a pressure type mouse encoder device of the present invention is shown, which may specifically include: the mouse comprises a coding mechanism 1 arranged in the mouse and an operating mechanism 2 at least partially exposed out of the mouse;

the coding mechanism 1 comprises an MCU unit 4 and a pressure-sensitive capacitor 30 which are arranged on the PCB 3; the fixed end of the pressure-sensitive capacitor 30 is fixedly arranged on the PCB 3 and is electrically connected to the GPIO interface of the MCU unit 4, and the elastic end of the pressure-sensitive capacitor 30 is grounded; the operating mechanism 2 is provided with a roller structure, the roller structure comprises a roller 21, a bracket and a pressure output piece 24, and the pressure output piece 24 is in transmission connection with the roller 21 through a wheel shaft 23; the pressure output pieces 24 are perpendicular to the wheel shaft 23 and are symmetrically arranged relative to the connecting position of the wheel shaft 23; the pressure sensing capacitor 30 is at least two corresponding to two ends of the pressure output piece 24, and the two ends of the pressure output piece 24 are in press contact with the elastic end; the roller 21 is at least partially exposed out of the mouse, and the roller 21 is arranged on the bracket through a wheel shaft 23; when the roller 21 rolls, the wheel shaft 23 connected with the roller 21 drives the pressure output member 24 to press the elastic end, so that the capacitance value of the pressure sensing capacitor 30 is changed by pressure, and the pressure output member is converted into encoding control information according to the changed capacitance value.

In an embodiment, the fixed end of the pressure-sensitive capacitor 30 is a conductor plate 31 attached to the surface of the PCB 3; the elastic end is an elastic metal part 32 arranged on the front surface of the conductor disc 31, and the elastic metal part 32 is kept separated from the conductor disc 31 in the elastic stroke.

The operating mechanism 2 is provided with a roller structure, the roller structure comprises a roller 21, a bracket 22 and a pressure output piece 24, and the pressure output piece 24 is in transmission connection with the roller 21 through a wheel shaft 23; wherein, the roller 21 is at least partially exposed out of the mouse, and the roller 21 is mounted on the bracket 22 through a wheel shaft 23; the pressure output member 24 press-contacts the resilient metal member 32. When a roller 21 of the mouse slides or is pressed down, the roller 21 drives the pressure output element 24 through a wheel shaft 22, the pressure output element 24 displaces an elastic metal element 32 of the pressure sensing capacitor 30 to the position of the conductor disc 31, and generates reverse displacement when the mouse looses or slides reversely, so as to change the capacity of the pressure sensing capacitor 30, the conductor disc 31 of the pressure sensing capacitor 30 is connected to a GPIO interface of the MCU unit 4, and when the MCU unit 4 detects the capacity change of the pressure sensing capacitor 30, the capacity change is converted into encoded data according to the change and output through an IO interface, wherein the capacitance change of the pressure sensing capacitor 30 is detected, including change frequency, capacitance change amount, and change speed, specifically, the capacitance change is detected by the MCU unit 4 or the detection chip, and is converted into a corresponding pressure value, and is converted into forward or backward data through the capacitance value of the pressure sensing capacitor 30, the pressure is converted into the speed of rotation of the encoder, the speed of rotation can be adjusted along with the force, the larger the pressure is, the faster the speed of rotation is, and the speed of rotation can be adjusted flexibly. The switch function is realized through the magnitude of the pressure value; the pressure can also be converted into the rotating speed.

In one embodiment, one end of the elastic metal piece 32 is soldered to the PCB 3 and is grounded GND through a pad 33 of the PCB 3; the elastic metal piece 32 is a metal elastic piece or a metal spring; the metal spring is a tower-shaped spring.

In the above embodiment, when the wheel 21 of the mouse is rotated forward or backward, the pressure output member 24 is driven by the wheel shaft 23 to deform the spring, so that the area of the conductor plate 31 opposite to the spring is changed, and the capacitance of the pressure-sensitive capacitor 30 is changed.

In one embodiment, the conductor disc 31 is a metal disc. The metal disc is mainly a copper disc, a silver disc, a zinc disc or a metal alloy disc. The metal plate is fixed on the PCB 3 as one of the electrodes of the variable capacitance capacitor 30.

In one embodiment, the pressure outputs 24 are arranged symmetrically with respect to the connection position of the axle 23; the pressure-sensitive capacitors 30 are provided in two corresponding to the pressure output member 24, and the elastic metal members 32 thereof are respectively in contact with two ends of the pressure output member 24.

The wheel shaft 23 extends to the other side of the roller 21 through the bracket 22 and is in contact connection with an elastic key 25 arranged on the operating mechanism 2; the other side is the side opposite to the pressure output part; the output end of the elastic key 25 is electrically connected with the MCU 4. The elastic metal piece 32 has elasticity, can solve the matching problem between installation mechanisms, and can automatically calibrate when in use by detecting the capacitance through the MCU unit 4.

In one embodiment, the PCB 3 is integrated with or separated from the operating mechanism 2. The split setting includes: the operating mechanism 2 is fixedly arranged on the upper layer of the PCB 3 or the operating mechanism 2 is fixedly arranged on the lower layer of the PCB 3;

when the operating mechanism 2 is fixedly arranged on the upper layer of the PCB 3, a hole for making the elastic metal piece 32 protrude out of the operating mechanism 2 is arranged at the position of the elastic metal piece 32 corresponding to the operating mechanism 2;

when the operating mechanism 2 is fixedly arranged at the lower layer of the PCB 3, the bracket 22 passes through the PCB 3 and protrudes out of the PCB 3.

The pressure encoder formed by the pressure sensing capacitor 30 connected to the MCU unit 4 and the roller structure has no mechanical contact, and the service life of the pressure encoder is far longer than that of a traditional mechanical contact type encoder. When the pressure encoder is used, the rotation stroke is very small, 360-degree rotation is not needed, and the pressure encoder is more convenient and labor-saving in use.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The pressure type mouse encoder device provided by the utility model is described in detail, and the principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A pressure-type mouse encoder apparatus, comprising: the encoding mechanism is arranged in the mouse and the operating mechanism is at least partially exposed out of the mouse;

2. The device of claim 1, wherein the fixed end of the pressure-sensitive capacitor is a conductive plate attached to the surface of the PCB.

3. The apparatus of claim 2, wherein the resilient end is a resilient metal member disposed on the front surface of the conductor disk, and the resilient metal member is maintained in a separated state from the conductor disk during its resilient stroke.

4. The apparatus of claim 3, wherein one end of the elastic metal member is soldered to the PCB and is grounded through a pad of the PCB;

the elastic metal piece is a metal elastic piece or a metal spring.

5. The device of claim 4, wherein the metal spring is a tower spring.

6. The apparatus of claim 2, wherein the conductor disk is a metal disk.

7. The device according to claim 6, characterized in that the metal discs are mainly copper or silver or zinc or metal alloy discs.

8. The device of claim 1, wherein the wheel shaft extends to the other side of the roller through a bracket and is in contact connection with an elastic button arranged on an operating mechanism; the other side is the side opposite to the pressure output part;

the output end of the elastic key is electrically connected with the MCU.

9. The device of claim 1, wherein the PCB board is integral with or separate from the operating mechanism.

10. The apparatus of claim 9, wherein the split arrangement comprises: the operating mechanism is fixedly arranged on the upper layer of the PCB or the operating mechanism is fixedly arranged on the lower layer of the PCB;