CN212084890U

CN212084890U - Novel hollow encoder

Info

Publication number: CN212084890U
Application number: CN202020704369.1U
Authority: CN
Inventors: 方振平; 舒斯龙
Original assignee: Dongguan Linjve Industry Investments Co ltd
Current assignee: Dongguan Linjiwei Technology Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-04
Anticipated expiration: 2030-04-30

Abstract

The utility model relates to a novel cavity encoder, including body, pivot, the pivot cover is established on the outer circumference of body quill shaft, and the pivot is passed through the support rotation and is fixed on the body, is provided with contact piece and shell fragment on the body, and the terminal electricity on contact piece and the body is connected, and the pivot is including setting up the undulant dish between support and body, and the terminal surface of undulant dish has the code wheel that produces the coding signal with the contact piece cooperation, and the shell fragment produces with the cooperation of the location tooth of undulant dish lateral wall and rotates the location and feel. The utility model has the advantages of reasonable structure, novel in design, the practicality is strong, produces the location through set up the shell fragment on the outer circumference of undulant dish and fix a position the tooth and feel, produces the code signal in the code wheel of undulant dish terminal surface and the cooperation of the contact piece in the body mounting groove, has optimized the inner structure of cavity encoder for the cavity encoder can compatible more equipment, through spacing portion bearing pivot, the frictional force that receives when reducing the pivot and rotating reduces undulant dish pressure to the contact piece again, improves contact piece life.

Description

Novel hollow encoder

Technical Field

The utility model relates to an encoder technical field, in particular to novel cavity encoder.

Background

Along with the continuous development of the society, the electronic products are updated and iterated fast, in the current electronic products, various switches are needed to be used, wherein, the knob switch is widely used by people due to the convenient gear shifting operation, a hollow shaft encoder of a body is needed to be used in some knob switches, for example, the Chinese utility model of application No. CN201721728459.9 discloses a hollow encoder, which comprises a support, an elastic sheet, a rotary seat, a contact sheet and a body wrapped with a circuit sheet, the circuit sheet (code disc) is wrapped with plastic on the body, the contact sheet is fixed on the rotary seat, the structure of the hollow encoder disclosed by the patent is a more traditional structure, the structure of the hollow encoder in the patent needs to provide a mounting position for the contact sheet, the elastic sheet and the support, so that the thickness of the hollow encoder is difficult to be further reduced, and the hollow encoder can not be used on some devices with requirements on the thickness of the encoder, thereby affecting the compatibility of the hollow encoder.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a novel hollow encoder.

In order to achieve the above purpose, the utility model provides a technical scheme does: the utility model provides a novel cavity encoder, includes body, pivot, the pivot cover is established on the outer circumference of body quill shaft, the pivot is passed through the support rotation and is fixed on the body, be provided with contact piece and shell fragment on the body, the terminal electricity on contact piece and the body is connected, the pivot is including setting up the undulant dish between support and body, the terminal surface of undulant dish has the code wheel that produces coding signal with the contact piece cooperation, the shell fragment produces with the cooperation of the location tooth of undulant dish lateral wall and rotates the location and feel.

In the technical scheme, the body is provided with a circle of annular mounting groove for accommodating the fluctuation disc, and a part of the terminal is wrapped and molded in the body and exposes out of the conductive part electrically connected with the contact piece at the groove bottom of the mounting groove.

In the technical scheme, the body is provided with a clamping groove on the inner wall of the mounting groove, the elastic sheet is embedded in the clamping groove, and convex points cooperating with the positioning teeth are arranged on the elastic sheet towards the direction of the fluctuation disk.

In the above technical scheme, the contact piece is fixed on the bottom of the mounting groove through the positioning column, and the corresponding opening of the contact piece is provided with the positioning hole.

In the above technical solution, the contact piece has five brush claws, the brush claws are provided with a first contact and a second contact, which have opposite protruding directions, the first contact is in contact with the terminal under the pressure of the wave disc along the axial direction to form an electrical connection, and the second contact is in sliding connection with the code disc.

In the technical scheme, the coded disc is wrapped on the fluctuation disc and the coding part leaks out of the end face of the fluctuation disc.

In the above technical solution, the outer wall of the body hollow shaft is provided with a plurality of protruding strips for reducing the contact area between the outer wall of the body hollow shaft and the inner wall of the rotating shaft, the plurality of protruding strips are arranged on the outer wall of the body hollow shaft at equal angles and are parallel to the axial direction of the rotating shaft, and the protruding strips have arc surfaces in line contact with the inner wall of the rotating shaft.

In the technical scheme, the body is provided with a plurality of limiting parts for supporting the rotating shaft to enable the rotating shaft fluctuation disc to be suspended in the air, the limiting parts are arranged on the outer wall of the hollow shaft of the body at equal angles, and the limiting parts are in contact with the steps on the inner wall of the rotating shaft.

In the above technical scheme, spacing portion sets up the one end that is close to the wave disk at the sand grip, the width and the thickness of spacing portion all are greater than the width and the thickness of sand grip, the one end that spacing portion is close to the sand grip is provided with domatic.

The utility model has the advantages of reasonable structure, novel design and strong practicability, the positioning hand feeling is generated by arranging the elastic pieces and the positioning teeth on the outer circumference of the fluctuation disc, the code disc at the end surface of the fluctuation disc and the contact piece in the body mounting groove cooperate to generate a coding signal, the internal structure of the hollow encoder is optimized, the thickness direction of the hollow encoder is further optimized, and the hollow encoder can be compatible with more devices; the contact area between the rotating shaft and the body is reduced through the raised strips on the outer wall of the hollow shaft of the body, so that the friction force applied to the rotation of the rotating shaft is reduced, the rotating abrasion of the rotating shaft is reduced, the rotating stability of the rotating shaft is improved, and the service life is prolonged; through spacing portion bearing pivot, guarantee undulant dish unsettled in the contact piece top, reduce the frictional force that receives when the pivot rotates promptly and reduce undulant dish again to the pressure of contact piece, improve the life of contact piece.

Drawings

Fig. 1 is a schematic view of the exploded structure of the present invention.

Fig. 2 is a schematic exploded view (another view direction of fig. 2) of the present invention.

Fig. 3 is a schematic perspective view of the stent removed.

Fig. 4 is a schematic view of an assembly structure of the body and the contact piece.

Fig. 5 is a schematic perspective view of the present invention.

In the figure: 1. a body; 11. mounting grooves; 12. a card slot; 13. a positioning column; 14. a convex strip; 15. a slope surface; 16. a limiting part; 2. a terminal; 21. a conductive portion; 22. a pin; 3. a spring plate; 31. salient points; 4. a contact piece; 41. brushing claws; 42. a second contact; 43. a first contact; 44. positioning holes; 5. a rotating shaft; 51. a wave disk; 52. positioning teeth; 6. code disc; 7. a support; 71. and (7) riveting feet.

Detailed Description

The embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1-5, a novel hollow encoder comprises a body 1 and a rotating shaft 5, wherein the rotating shaft 5 is sleeved on the outer circumference of a hollow shaft of the body 1, the rotating shaft 5 is fixed on the body 1 through a support 7 in a rotating manner, the body 1 is provided with a contact piece 4 and an elastic piece 3, the contact piece 4 is electrically connected with a terminal 2 on the body 1, the rotating shaft 5 comprises a fluctuation disc 51 arranged between the support 7 and the body 1, the end surface of the fluctuation disc 51 is provided with a code disc 6 which generates a coding signal in cooperation with the contact piece 4, and the elastic piece 3 and a positioning tooth 52 on the side wall of the fluctuation disc 51 cooperate to generate a.

The body 1 is provided with a ring-shaped mounting groove 11 for accommodating the wave plate 51, and a part of the terminal 2 is molded in the body 1 and exposes a conductive portion 21 electrically connected to the contact piece 4 at the groove bottom of the mounting groove 11.

The body 1 is provided with the draw-in groove 12 at the inner wall of mounting groove 11, and shell fragment 3 inlays and establishes in draw-in groove 12, and shell fragment 3 is equipped with the bump 31 of cooperating with location tooth 52 towards undulant dish 51 direction suddenly.

The contact sheet 4 is fixed on the bottom of the mounting groove 11 through the positioning column 13, and the contact sheet 4 is correspondingly provided with a positioning hole 44.

The contact piece 4 has five brush claws 41, the brush claws 41 are provided with first contact points 43 and second contact points 42 which are opposite in projecting direction, the first contact points 43 are in contact with the conductive parts 21 of the terminals 2 under the pressure of the wave plate 51 in the axial direction to form electrical connection, and the second contact points 42 are in sliding connection with the code wheel 6.

Code wheel 6 sets up at undulant dish 51 and spills the code portion on undulant dish 51's terminal surface for body 1 only need mould five terminals 2 on a small part area package, makes body 1's most area can be used for designing strengthening rib or boss, thereby improves body 1's structural strength, reduces body 1 structural complexity simultaneously, reduces injection mold's design and manufacturing cost.

The outer wall of the hollow shaft of the body 1 is provided with a plurality of convex strips 14 for reducing the contact area between the outer wall of the hollow shaft of the body 1 and the inner wall of the rotating shaft 5, the convex strips 14 are arranged on the outer wall of the hollow shaft of the body 1 at equal angles and are parallel to the axial direction of the rotating shaft, and the convex strips 14 have cambered surfaces in line contact with the inner wall of the rotating shaft 5.

The body 1 is provided with a plurality of limiting parts 16 for supporting the rotating shaft 5 to enable the rotating shaft 5 to wave the driving disk 51 to suspend, the limiting parts 16 are arranged on the outer wall of the hollow shaft of the body at equal angles, and the limiting parts 16 are in contact with the steps on the inner wall of the rotating shaft 5.

The limiting part 16 is arranged at one end of the convex strip 14 close to the wave disc 51, the width and the thickness of the limiting part 16 are both larger than those of the convex strip 14, and a slope 15 is arranged at one end of the limiting part 16 close to the convex strip 14.

The pin 22 of the terminal 2 is bent and extends along the direction parallel to the axial line of the hollow shaft of the body, the contact piece 4 is riveted and fixed on the body 1 and is electrically connected with the conductive part 21 of the terminal 2 through a first contact 43, the code disc 6 is fixed on the end surface of the wave disc 51 through plastic coating and is in sliding connection with a second contact 42 of the contact piece 4, the rotating shaft 5 enables the wave disc 51 and the code disc 6 to rotate relative to the contact piece 4, and the brush claws 41 of the contact piece 4 are enabled to be in contact with different coding parts of the code disc 6 to form coding signals.

The bracket 7 is riveted and fixed with the body 1 by bending the four riveting feet 71.

The utility model discloses rational in infrastructure, novel in design, practicality are strong, through set up shell fragment 3 and location tooth 52 on undulant dish 51 outer circumference and produce the location and feel, contact piece 4 cooperation in code wheel 6 and the body 1 mounting groove 11 at undulant dish 51 terminal surface produces the code signal, has optimized the inner structure of hollow encoder for the thickness direction of hollow encoder can further be optimized, makes the hollow encoder can be compatible more equipment; the contact area between the rotating shaft 5 and the body 1 is reduced through the convex strips 14 on the outer wall of the hollow shaft of the body, so that the friction force applied to the rotation of the rotating shaft 5 is reduced, the rotating abrasion of the rotating shaft 5 is reduced, the rotating stability of the rotating shaft 5 is improved, and the service life is prolonged; through spacing portion 16 bearing pivot 5, guarantee that wave driving disk 51 is unsettled in contact piece 4 top, reduce the frictional force that receives when pivot 5 rotates promptly and reduce wave driving disk 51 pressure to contact piece 4 again, improve the life of contact piece 4.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications to the above embodiments are all within the scope of the present invention.

Claims

1. The utility model provides a novel cavity encoder, its characterized in that, includes body, pivot, the pivot cover is established on the outer circumference of body quill shaft, the pivot is fixed on the body through the support rotation, be provided with contact piece and shell fragment on the body, the terminal electricity on contact piece and the body is connected, the pivot is including setting up the undulant dish between support and body, the terminal surface of undulant dish has the code wheel that produces coding signal with the contact piece cooperation, the shell fragment produces with the cooperation of the location tooth of undulant dish lateral wall and rotates the location and feel.

2. The novel hollow encoder according to claim 1, wherein the body is provided with a ring-shaped mounting groove for accommodating the wave disk, and a part of the terminal is molded in the body and exposes a conductive portion electrically connected with the contact piece at the groove bottom of the mounting groove.

3. The novel hollow encoder as claimed in claim 2, wherein the body is provided with a slot on the inner wall of the mounting groove, the elastic piece is embedded in the slot, and a protruding point cooperating with the positioning tooth is protruded towards the wave plate.

4. The novel hollow encoder according to claim 3, wherein the contact piece is fixed on the bottom of the mounting groove by a positioning column, and the contact piece is correspondingly provided with a positioning hole.

5. The novel hollow encoder according to claim 4, wherein the contact piece has five brush claws, the brush claws are provided with a first contact point and a second contact point which are opposite in protruding direction, the first contact point is contacted with the terminal under the pressure of the wave plate along the axial direction to form an electric connection, and the second contact point is connected with the code plate in a sliding mode.

6. The novel hollow encoder according to claim 5, wherein said code disc is molded around the wobble plate and leaks out of the code portion on the end face of the wobble plate.

7. The novel hollow encoder as claimed in claim 6, wherein the outer wall of the hollow shaft is provided with a plurality of ribs for reducing the contact area between the outer wall of the hollow shaft and the inner wall of the rotating shaft, the plurality of ribs are disposed on the outer wall of the hollow shaft at equal angles and parallel to the axial direction of the rotating shaft, and the plurality of ribs have curved surfaces which form line contact with the inner wall of the rotating shaft.

8. The novel hollow encoder as claimed in claim 7, wherein the body is provided with a plurality of limiting portions for supporting the rotation shaft to suspend the rotation shaft wave plate, the plurality of limiting portions are disposed on the outer wall of the hollow shaft of the body at equal angles, and the limiting portions are in contact with the steps on the inner wall of the rotation shaft.

9. The novel hollow encoder according to claim 8, wherein the limiting portion is disposed at an end of the protruding strip close to the wave disk, the width and thickness of the limiting portion are both greater than those of the protruding strip, and a slope is disposed at an end of the limiting portion close to the protruding strip.