CN216772385U

CN216772385U - Mouse middle key encoder

Info

Publication number: CN216772385U
Application number: CN202220534931.XU
Authority: CN
Inventors: 黄其华
Original assignee: Yueqing Oen Electronics Co ltd
Current assignee: Yueqing Oen Electronics Co ltd
Priority date: 2022-03-12
Filing date: 2022-03-12
Publication date: 2022-06-17
Anticipated expiration: 2032-03-12

Abstract

The utility model discloses a mouse middle key encoder which comprises a shell and a base, wherein a pin and an encoding cavity are arranged on the base, the pin is provided with a plurality of static contacts, a switching piece, a rotary table and a positioning piece are arranged in the encoding cavity, the positioning piece is provided with two positioning bosses which are abutted against the end part of the rotary table and two fixing parts which are abutted against the end part of the base respectively, the fixing parts are also provided with fixing holes, and the base is provided with positioning columns relative to the fixing holes; according to the mouse encoder, due to the design of the positioning columns and the positioning sheets with the two protruding ends, the elastic property of the positioning sheets can be better maintained due to the fact that the stress of the positioning sheets is more uniform, the structure is more convenient for automatic production, and the spherical contact surface of the movable contact sheet enables the movable contact sheet to be in smooth and tight contact with the static contact.

Description

Mouse middle key encoder

Technical Field

The utility model relates to the field of mouse accessories, in particular to a mouse middle key encoder.

Background

The mouse encoder is a mechanical rotary electric signal generator, which is an electronic element for directly converting the rotated angular displacement into digital signals. The mouse encoder is widely applied to household appliances, industrial control equipment and computer peripheral office equipment, is mainly used in the fields of mice, game machines and the like, and has the characteristics of high use frequency and strong operation randomness.

A mouse encoder on the market comprises a shell, a base, terminals, a rotor, a positioning piece and a switching piece. A mouse encoder base is internally provided with a terminal which is encapsulated in the base, a rotor which does circular motion is arranged in an inner cavity of the base, a switching piece which is contacted with the terminal is arranged in the rotor, the rotor is arranged between the base and a positioning piece which is arranged on two positioning columns of the base, and a shell is buckled on buckling angles on two sides of the base, the product in the prior art is provided with a convex butt rotor on the positioning piece, although the initial use is not problematic, the single-side fixing mode of the product is in actual use, the relation between a middle key roller and the positioning piece based on a mouse exists, the positioning piece can generate single-side stress to cause the problem of short service life, secondly, the most common feeding mechanism on an automatic production line is a vibrating disc, but the positioning piece with an irregular shape structure is difficult to adopt automatic feeding mechanisms such as the vibrating disc to assemble during production and assembly, so that the automation is difficult to implement, resulting in an increase in production costs.

SUMMERY OF THE UTILITY MODEL

In view of the prior art, the utility model aims to provide a positioning sheet with double protrusions and fixed on two sides, and solves the problems that in the prior art, the positioning sheet is easy to damage in one-side installation, short in service life, difficult to realize automation and the like.

In order to realize the purpose, the utility model adopts the technical scheme that: the utility model provides a mouse middle key encoder, includes casing and the base of encoder, casing and base interconnect the both sides of base are provided with the block arch, the casing corresponds the protruding department of block and is provided with assorted block groove, still set up pin and coding chamber on the base, pin one end is located the coding intracavity and sets up, and the other end stretches out the base and is used for connecting the mouse mainboard setting, the pin is located coding intracavity part and is the angle scale and be provided with a plurality of stationary contacts, the coding chamber still has set gradually switching piece, carousel and spacer by supreme down, be provided with two on the spacer with carousel tip looks butt the location boss and two respectively with base tip looks butt fixed part, the fixed part still is provided with the fixed orifices, base relative fixed orifices is provided with the reference column.

As a further arrangement of the scheme, the fixing part and the positioning boss are uniformly distributed along the circle center of the positioning sheet, and the fixing part and the positioning boss are arranged at intervals and have an included angle of 90 degrees therebetween.

As a further configuration of the above scheme, the stationary contact is disposed opposite to the bottom surface of the coding cavity, the rotary disk is provided with a convex column, and the switching piece is fixed to the rotary disk through the convex column.

As a further arrangement of the above scheme, the switch plate is provided with three movable contact pieces which are oppositely abutted against the bottom surface of the coding cavity and the fixed contact, and a hemispherical protrusion is arranged on the surface of the movable contact piece abutted against the fixed contact.

As a further arrangement of the above scheme, one surface of the turntable opposite to the positioning piece is provided with a plurality of positioning teeth, and the positioning teeth are radially and uniformly distributed on the circumference of the turntable abutting against the positioning piece.

Has the advantages that: the mouse encoder of the utility model, through the design of the positioning sheet positioned, installed and fixed by the positioning columns at the two ends of the double bulges, ensures that the force exerted on the positioning sheet and the turntable by the mouse roller is relatively uniform in the use process of the product, so that the elastic property of the positioning sheet can be better maintained, the service life is prolonged, and the positioning sheet of the product is more suitable for being used on a vibrating disc feeding mechanism in production and assembly compared with the positioning sheet which is protruded at one side and fixed at one side in the prior art, the positioning sheet of the utility model can realize automatic feeding by designing a simple vibrating disc feeding channel, is convenient for automatic production, further, the pin stationary contact of the utility model is relatively convexly arranged, the movable contact is provided with a spherical contact surface, so that the contact of the roller and the stationary contact is smoother and tighter in the back-and forth rolling, the utility model has simple design and skillful and scientific structure, and effectively solves the defects in the prior art, the service life of the product is prolonged, and the production efficiency of the product is optimized through the improvement of the structure, so that the product has better market value.

Drawings

FIG. 1 is a schematic diagram of the internal structure of a mouse encoder according to the present invention.

FIG. 2 is a schematic view of the structure of the positioning plate of the present invention.

Reference numerals: 1. a housing; 11. a clamping groove; 2. a base; 21. clamping the protrusion; 3. a pin; 31. a stationary contact; 4. an encoding cavity; 5. a switching sheet; 51. a movable contact spring; 6. a turntable; 61. a convex column; 7. positioning plates; 71. positioning the projection; 72. a fixed part; 73. a fixing hole; 74. a positioning column; 75. and positioning teeth.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflicting with each other.

Referring to fig. 1-2, the encoder of the present invention includes a housing 1 and a base 2 of the encoder, the housing 1 and the base 2 are connected with each other by a fastening protrusion 21, as shown in fig. 1, the base 2 is provided with fastening protrusions 21 at two sides thereof, the housing 1 is provided with a matching fastening groove 11 corresponding to the fastening protrusion 21, the above-mentioned structures are fastened with each other by external force to realize the assembly and fastening of the encoder body, the encoder base 2 of the present embodiment is further provided with a pin 3 and an encoding cavity 4, one end of the pin 3 is located in the encoding cavity 4, the other end extends out of the base 2 for connecting the mouse motherboard, the pin 3 and the base 2 are connected with each other by injection molding, that is, the pin 3 prepared in advance is placed on the injection molding mold to mold the base 2, the base 2 with the pin 3 is obtained after molding, so that the two are combined relatively tightly, the utility model has the advantages that the part of the pin 3 which is positioned in the coding cavity 4 is provided with a plurality of static contacts 31 in an angle scale, the static contacts 31 are provided with a plurality of static contacts 31, the number of the functions to be realized by the specific number of the combined coder is corresponding, namely, different functions can be realized by the mutual linkage between different static contacts 31 to set and determine the number of the static contacts 31, the coding cavity 4 is sequentially provided with the switching piece 5, the rotary disc 6 and the positioning piece 7 from bottom to top, the positioning piece 7 is provided with two positioning bosses 71 which are abutted against the end part of the rotary disc 6 and two fixing parts 72 which are respectively abutted against the end part of the base 2, the fixing parts 72 are also provided with fixing holes 73, the base 2 is provided with positioning columns 74 relative to the fixing holes 73, through the structure arrangement, when the coder is installed in a mouse, the rotary disc 6 is circumferentially fixed with a key roller in the mouse, the rotary mouse roller can drive the rotary disc 6 to rotate, based on the fixing of the rotary plate 6 and the switch plate 5, three pins of the switch plate 5 respectively abut against the stationary contacts 31, i.e. the rotating roller drives the rotary plate 6 to rotate, thereby driving the switch plate 5 to switch on different three stationary contacts 31, three movable contacts 51 on the switch plate 5 are electrically connected with each other, i.e. the rotation of the rotary plate 6 realizes the on-off switching between three pins, thereby realizing the output of different signals, thereby realizing different signal functions, furthermore, the positioning plate 7 of the present invention is provided with two positioning bosses 71 abutting against the rotary plate 6 and fixing holes 73 fixed on the base 2, thereby realizing the tight fixed mounting with the base 2 by the arrangement of the fixing part 72, and based on the arrangement of the fixing part 72, the positioning plate 7 of the present embodiment is stably mounted on the base 2 at a certain distance from the rotary plate 6, thereby avoiding the swing problem of the positioning plate in the prior art caused by the rotation of the rotary plate 6, reduced the life reduction problem of the spacer that leads to based on this problem, secondly, boss 71 butt on carousel 6 is given to two relative location, and relative prior art's single boss, wear is littleer, and the lateral force application of gyro wheel is also difficult for producing the damage, has further promoted life.

As a further arrangement of the above scheme, the fixing portion 72 and the positioning boss 71 are uniformly distributed along the center of the circle of the positioning sheet 7, and the fixing portion 72 and the positioning boss 71 are arranged at intervals and have an included angle of 90 degrees therebetween.

As a further arrangement of the above scheme, the stationary contact 31 is disposed opposite to the bottom surface of the coding cavity 4, the rotary disk 6 is provided with a convex pillar 61, and the switching piece 5 is fixedly disposed with the rotary disk 6 through the convex pillar 61.

As a further arrangement of the above scheme, the switch plate 5 is provided with three movable contact pieces 51 which are relatively abutted against the bottom surface of the coding cavity 4 and the fixed contact 31, and a hemispherical protrusion is arranged on the surface of the movable contact piece 51 abutted against the fixed contact 31.

Through above-mentioned structure setting, the relative protruding 4 bottom surfaces in coding chamber of static contact 31 of the utility model of relative prior art set up, more inseparable between the contact of the encoder of the utility model, further hemisphere protruding contact static contact 31 that sets up on movable contact 51, relative prior art, the gyro wheel of key is positive and negative roll back and forth in the mouse, in case there is the burr in the contact of prior art in pin 3 is moulded plastics or has the gap after using for a long time, probably can lead to the normal use scheduling problem of pivoted hysteresis influence switch piece 5.

As a further arrangement of the above scheme, one surface of the turntable 6 opposite to the positioning plate 7 is provided with a plurality of positioning teeth 75, and the positioning teeth 75 are radially and uniformly distributed on the circumference where the turntable 6 abuts against the positioning plate 7.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a key encoder in mouse, includes casing (1) and base (2) of encoder, its characterized in that: the mouse is characterized in that the shell (1) is connected with the base (2), clamping protrusions (21) are arranged on two sides of the base (2), matched clamping grooves (11) are formed in the positions, corresponding to the clamping protrusions (21), of the shell (1), pins (3) and a coding cavity (4) are further arranged on the base (2), one ends of the pins (3) are located in the coding cavity (4), the other ends of the pins extend out of the base (2) and are used for being connected with a mouse main board, a plurality of stationary contacts (31) are arranged on the inner portions, located in the coding cavity (4), of the pins (3) in an angle scale, the coding cavity (4) is sequentially provided with a switching piece (5), a rotary table (6) and a positioning piece (7) from bottom to top, two positioning bosses (71) which are abutted against the end of the rotary table (6) and two fixing portions (72) which are abutted against the end of the base (2) respectively are arranged on the positioning piece (7), the fixing portion (72) is further provided with a fixing hole (73), and the base (2) is provided with a positioning column (74) relative to the fixing hole (73).

2. The mouse middle key encoder according to claim 1, wherein: fixed part (72) and location boss (71) are evenly distributed along spacer (7) centre of a circle, fixed part (72) and location boss (71) set up and the contained angle between the two is 90 degrees at an interval each other.

3. The mouse middle key encoder according to claim 1, wherein: the static contact (31) is arranged opposite to the bottom surface of the coding cavity (4), the rotary disc (6) is provided with a convex column (61), and the switching piece (5) is fixedly arranged with the rotary disc (6) through the convex column (61).

4. The mouse middle key encoder according to claim 3, wherein: the switching piece (5) is provided with three movable contact pieces (51) which are oppositely abutted against the bottom surface of the coding cavity (4) and the fixed contact (31), and the surface of the movable contact piece (51) abutted against the fixed contact (31) is provided with a hemispherical bulge.

5. The mouse middle key encoder according to claim 1, wherein: one side of the turntable (6) opposite to the positioning piece (7) is provided with positioning teeth (75), the number of the positioning teeth (75) is plural, and the positioning teeth are radially and uniformly distributed on the circumference where the turntable (6) is abutted to the positioning piece (7).