CN111913600A

CN111913600A - Mouse roller structure and mouse comprising same

Info

Publication number: CN111913600A
Application number: CN202010840797.1A
Authority: CN
Inventors: 陈炳佐; 叶威志
Original assignee: Shenzhen Moor Intelligent Acoustics Tech Co ltd
Current assignee: Shenzhen Moor Intelligent Acoustics Tech Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2020-11-10

Abstract

The invention provides a mouse roller structure and a mouse comprising the same. The circular magnet is magnetized in the radial direction to form an S pole and an N pole, and is aligned with the center of an IC chip on the magnetic rotary encoder PCBA, the surface of the circular magnet keeps a certain distance from the surface of the IC chip on the magnetic rotary encoder PCBA, when the roller rolls forwards or backwards, the IC chip on the magnetic rotary encoder PCBA detects the rotation of the S pole and the N pole of the circular magnet to generate angle and position change, an A/B pulse signal is output to identify the front and back rotation angle and direction of the roller for a microprocessor of a mainboard, the minimum rotation resolution is 360 DEG/N pulses, the number of N can be modified in a program in the IC chip on the magnetic rotary encoder PCBA, the rotation resolution of the roller can reach 0.1, and the output precision and the output angle are improved.

Description

Mouse roller structure and mouse comprising same

Technical Field

The invention relates to the technical field of mice, in particular to a mouse roller structure and a mouse comprising the same.

Background

The mechanical encoder used by the existing mouse roller structure outputs angles and positions in a spring contact mode, the inner spring is easy to wear, the output precision is low, and the output angle is limited by the number of the inner contact springs; meanwhile, the damping is arranged in the mechanical encoder, a mouse roller cannot rotate fast and inertially to check the page content of a connecting device of the mouse, meanwhile, the existing mouse covers an infrared light source detection roller structure through an infrared lamp tube and an annular grating, the output precision is low, the light intensity is weakened after the infrared lamp tube works for a long time or is covered by dust, and the output angle is limited by the number of infrared light sources covered by the annular grating grids.

Disclosure of Invention

The invention aims to provide a mouse roller structure and a mouse comprising the same, and aims to solve the problems of low output precision and low output angle of the conventional mouse.

The invention provides a mouse roller structure which comprises a main board, a support arranged at the upper end of the main board, a magnetic rotary encoder PCBA connected with the main board, a magnetic rotary encoder arranged on the magnetic rotary encoder PCBA, a circular magnet arranged on one side of the magnetic rotary encoder PCBA, and a roller connected with the circular magnet, wherein the magnetic rotary encoder PCBA is connected with the main board after being connected with the support, and a mounting groove is formed in the position, corresponding to the circular magnet, of the roller.

Above-mentioned mouse gyro wheel structure, circular magnet magnetizes at radial direction and forms S utmost point and N utmost point, and align with IC chip center on the magnetism rotary encoder PCBA, circular magnet surface keeps the certain distance with the IC chip surface on the magnetism rotary encoder PCBA, when the gyro wheel rolls forward or backward, the last IC chip of magnetism rotary encoder PCBA detects the S utmost point and the N utmost point rotation of circular magnet and takes place angle and position change, output A/B pulse signal gives microprocessor discernment gyro wheel front and back turned angle and direction of mainboard, rotatory minimum resolution ratio is 360/N pulse, the quantity of N can be revised in the form on the IC chip on magnetism rotary encoder PCBA, make gyro wheel rotary resolution ratio can reach 0.1, output accuracy and output angle have been improved.

Furthermore, the connection mode of the magnetic rotary encoder PCBA and the bracket comprises any one of insertion connection, fastener connection, double-faced adhesive tape adhesion or hot melt column fixation.

Furthermore, the support with the position that magnetic rotary encoder PCBA corresponds is equipped with a U type draw-in groove, magnetic rotary encoder PCBA's one end pass U type draw-in groove and with mainboard connection.

Further, the magnetic rotary encoder PCBA is connected to the main board by any one of a connector and a cable.

Furthermore, the upper end of the roller is also provided with a hand-feeling damping elastic sheet, and the connection mode of the hand-feeling damping elastic sheet and the roller comprises any one of fastener connection, buckle or hot-melting column fixation.

Further, the communication mode of the magnetic rotary encoder PCBA and the main board comprises any one of ABZ, SPI, PWM, IIC chips or UVW.

Further, the shape of the circular magnet includes any one of a cylindrical type or a ring type.

Further, the connection mode of the round magnet and the roller comprises any one of clamping, gluing, screws or in-mold injection molding.

Furthermore, a square clamping groove is formed in the position, corresponding to the PCBA, of the main board, and a circular positioning hole is formed in the position, corresponding to the support, of the main board.

The invention also provides a mouse which comprises a bottom cover, a face cover and the mouse roller structure, wherein the main board of the mouse roller structure is arranged on the bottom cover.

Drawings

FIG. 1 is an exploded view of a mouse wheel structure according to a first embodiment of the present invention;

FIG. 2 is a schematic view of an assembly structure of the mouse wheel structure of FIG. 1;

FIG. 3 is an exploded view of a mouse according to a second embodiment of the present invention;

fig. 4 is a schematic view of an assembly structure of the mouse in fig. 3.

Description of the main element symbols:

main board	10	U-shaped clamping groove	21	Mounting groove	51
						Square clamping groove	11	Magnetic rotary encoder PCBA	30	Hand-feeling damping elastic sheet	60
Circular positioning hole	12	Circular magnet	40	Screw with a thread	70
						Support frame	20	Roller wheel	50	Bottom cover	100

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a mouse wheel structure according to a first embodiment of the present invention includes a main board 10, a bracket 20 disposed at an upper end of the main board 10, a magnetic rotary encoder PCBA30 connected to the main board 10, a magnetic rotary encoder (not shown) disposed on the magnetic rotary encoder PCBA30, a circular magnet 40 disposed on one side of the magnetic rotary encoder PCBA30, and a wheel 50 connected to the circular magnet 40, wherein the magnetic rotary encoder PCBA30 is connected to the bracket 20 and then connected to the main board 10, and a mounting groove 51 is disposed at a position of the wheel 50 corresponding to the circular magnet 40 for mounting the circular magnet 40.

In the mouse wheel structure, the circular magnet 40 is magnetized in the radial direction to form an S pole and an N pole, and is aligned with the center of an IC chip on the magnetic rotary encoder PCBA30, the surface of the circular magnet 40 keeps a certain distance with the surface of the IC chip on the magnetic rotary encoder PCBA30, when the wheel 50 rolls forwards or backwards, the IC chip on the magnetic rotary encoder PCBA30 detects the rotation angle and position change of the S pole and the N pole of the circular magnet 40, an A/B pulse signal is output to a microprocessor of the mainboard 10 to identify the front and back rotation angle and direction of the wheel 50, the minimum rotation resolution is 360 DEG/N pulses, the number of N can be modified in a program in the IC chip on the magnetic rotary encoder PCBA30, so that the rotation resolution of the wheel 50 can reach 0.1 DEG, and the output precision and the output angle are improved.

It should be noted that, the magnetic rotary encoder PCBA is provided with an IC chip, and the magnetic rotary encoder is in contactless connection with the circular magnet 40, so that the magnetic rotary encoder has no wear problem, and can be used for a long time. A microprocessor is provided on the motherboard 10 to implement basic processing functions.

Specifically, in the embodiment of the present invention, the upper end of the roller 50 is further provided with a hand-feel damping elastic sheet 60, and it can be understood that, in other embodiments of the present invention, even if there is no hand-feel damping elastic sheet 60, the roller 50 can be rotated at a high speed and its rotation direction and angle can still be recognized by the IC chip on the magnetic rotary encoder PCBA 30. So that the roller 50 can be used without installing the hand feeling damping elastic piece 60.

Specifically, in the embodiment of the present invention, a U-shaped slot 21 is disposed at a position of the bracket 20 corresponding to the magnetic rotary encoder PCBA30, one end of the magnetic rotary encoder PCBA passes through the U-shaped slot 21 and is connected to the main board 10, and the magnetic rotary encoder PCBA30 is convenient to disassemble and assemble by means of inserting, and it can be understood that, in other embodiments of the present invention, the connection manner of the magnetic rotary encoder PCBA30 and the bracket 20 may further include any one of fastener connection, double-sided adhesive bonding, or hot-melt column fixation, so as to fix the magnetic rotary encoder PCBA30 on the bracket 20.

Specifically, in the embodiment of the present invention, the magnetic rotary encoder PCBA30 and the main board 10 may be connected by any one of a connector and a cable.

Specifically, in the embodiment of the present invention, the connection manner of the hand-feeling damping elastic sheet 60 and the roller 50 includes any one of fastener connection, snap fastening, or hot-melt column fixation.

Specifically, in the embodiment of the present invention, the communication method between the magnetic rotary encoder PCBA30 and the main board 10 includes any one of ABZ (encoder position signal), SPI (Serial Peripheral Interface), PWM (Pulse width modulation), IIC (Inter-Integrated Circuit) or UVW (magnetic pole signal of motor).

Specifically, in the embodiment of the present invention, the circular magnet 40 is cylindrical to form an S pole and an N pole by being magnetized in a radial direction, and it is understood that in other embodiments of the present invention, the shape of the circular magnet 40 may include any one of a cylindrical shape and a circular ring shape.

Specifically, in the embodiment of the present invention, the connection manner of the circular magnet 40 and the roller 50 includes any one of a snap, an adhesive, a screw, or an in-mold injection.

Specifically, in the embodiment of the present invention, a square slot 11 is disposed at a position of the main board 10 corresponding to the magnetic rotary encoder PCBA30, and a circular positioning hole 12 is disposed at a position of the main board 10 corresponding to the bracket 20.

Referring to fig. 3 and 4, a mouse according to a second embodiment of the present invention includes a bottom cover 100 and a surface cover (not shown), and further includes a mouse wheel structure as described above, a main board 10 of the mouse wheel structure is disposed on the bottom cover 100, and a lower end of the hand-feeling damping elastic piece 60 is connected to the bottom cover 100.

Specifically, the magnetic rotary encoder PCBA30 slides into the U-shaped slot 21 on one side of the bracket 20, the inner side surface of the slot has a position where the buckle positioning magnetic rotary encoder PCBA30 slides in, the magnetic rotary encoder PCBA30 and the bracket 20 are inserted into the square slot 11 and the circular positioning hole 12 on the motherboard 10, the reverse side of the motherboard 10 is connected and fixed with the magnetic rotary encoder PCBA30 through a pad, the motherboard 10 is fixed on the bottom cover 100 through a screw or a buckle, the circular magnet 40 is fixed in the groove on one side of the roller 50, the circular magnet 40 is magnetized in the radial direction to form an S pole and an N pole, one side shaft of the roller 50 is inserted into the square hole of the bottom cover 100, the other side shaft is placed into the U-shaped mounting slot of the bottom cover 100, the center of the IC chip on the magnetic rotary encoder PCBA30 needs to be aligned with the center of the circular magnet 40, the surface of the circular magnet 40 keeps a certain distance with the surface of the IC, when the roller 50 rolls forwards or backwards, the IC chip on the magnetic rotary encoder PCBA30 detects that the S pole and the N pole on the circular magnet 40 rotate to generate angle and position changes, an A/B pulse signal is output to the microprocessor of the mainboard 10 to identify the front and back rotation angle and direction of the roller 50, the minimum rotation resolution is 360 DEG/N pulses, and the N number can be modified in a program in the IC chip on the magnetic rotary encoder PCBA 30.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a mouse roller structure, its characterized in that includes the mainboard, locates support on the mainboard, with the magnetism rotary encoder PCBA of mainboard connection, locate magnetism rotary encoder PCBA last magnetism rotary encoder, locate the circular magnet of magnetism rotary encoder PCBA one side, and with the gyro wheel that circular magnet is connected, magnetism rotary encoder PCBA with after the leg joint with the mainboard connection, the gyro wheel with the position that circular magnet corresponds is equipped with a mounting groove.

2. The mouse wheel structure of claim 1, wherein the magnetic rotary encoder PCBA is connected with the bracket in a manner selected from any one of plugging, fastener connection, double-sided adhesive bonding, and hot-melt column fixation.

3. The mouse wheel structure of claim 1, wherein a U-shaped slot is formed in the bracket at a position corresponding to the magnetic rotary encoder PCBA, and one end of the magnetic rotary encoder PCBA penetrates through the U-shaped slot and is connected with the main board.

4. The mouse wheel structure of claim 1, wherein the magnetic rotary encoder PCBA is connected to the motherboard by any one of a connector or a cable.

5. The mouse roller structure according to claim 1, wherein a hand-feeling damping spring is further disposed at an upper end of the roller, and a connection manner of the hand-feeling damping spring and the roller includes any one of a fastener connection, a buckle, or a hot-melt column fixation.

6. The mouse wheel structure of claim 1, wherein the magnetic rotary encoder PCBA communicates with the motherboard in any one of ABZ, SPI, PWM, IIC chip or UVW.

7. The mouse wheel structure of claim 1, wherein the shape of the circular magnet includes any one of a cylindrical type or a circular ring type.

8. The mouse wheel structure of claim 1, wherein the connection of the circular magnet and the wheel comprises any one of a snap, an adhesive, a screw, or an in-mold molding.

9. The mouse wheel structure of claim 1, wherein a square slot is formed at a position of the main board corresponding to the PCBA, and a circular positioning hole is formed at a position of the main board corresponding to the bracket.

10. A mouse comprising a bottom cover and a face cover, further comprising the mouse wheel structure of any one of claims 1-9, wherein a main board of the mouse wheel structure is disposed on the bottom cover.