CN201100845Y

CN201100845Y - Rotary coder

Info

Publication number: CN201100845Y
Application number: CNU200720119136XU
Authority: CN
Inventors: 洪金镳
Original assignee: SHENGWEI ELECTRONIC PRODUCTS (DONGGUAN) CO Ltd
Current assignee: Soundwell Electric Products Guangdong Co., Ltd.
Priority date: 2007-03-23
Filing date: 2007-03-23
Publication date: 2008-08-13
Anticipated expiration: 2017-03-23

Abstract

The utility model discloses a rotary encoder, which comprises three terminals which are mutually spaced, are arrayed in the same circumferential angle and are pressed into plate shape by conducting material, brushes which contact with the terminals, a cylindrical or a truncated cone shape shaft core and an encoder body which contains the shaft core in thereof and is not influenced to freely rotate along itself shaft line. The brushes are fixedly arranged on one end face wherein the shaft core is positively faced to the encoder body, each terminal has stable performance through coating and shaping on the surface of the encoder body. The utility model also comprises a supporting stand which contains a positioning spring plate, the shaft core and the encoder body, a riveting foot is arranged on the supporting stand, and the riveting foot is riveted on the rear face of the encoder body, and the structure is stable, a glue pillar is arranged on the encoder body, a through hole is arranged on the positioning spring p late, and the positioning spring plate and the encoder body are buckled and connected with the through hole through the glue pillar, and the positioning spring plate and the encoder body can be prevented from deadlocking.

Description

A kind of rotary encoder

Technical field

The utility model relates to a kind of rotary encoder, more particularly, relates in fields such as AV, household electrical appliance and wireless telecommunications.

Background technology

Existing rotary encoder, comprise support and the scrambler body that is fixed on the support, be provided with centrosymmetric semi open model cavity in the scrambler body, in the semi open model cavity, be provided with rotating shaft, be respectively equipped with electric contact piece with contacting of rotating shaft on the end face and electricity touches brush at the scrambler body, be provided with tooth portion on scrambler body one end dorsad in rotating shaft, on rack inner wall, be provided with some Location resilient pieces of inwardly tiltedly stretching and matching with tooth portion with given shape and arrangement regulation.On scrambler body outer wall, be provided with some glue posts, on support, be provided with and the corresponding circular hole of glue post, described support by circular hole and glue post mutually riveted fix.

The drawback of prior art is: reprocess inconvenience, reprocess the back body and easily scrap.

The utility model content

The purpose of this utility model is to overcome above-mentioned defective of the prior art, provides that a kind of structure is firm, the rotary encoder of stable performance.

For achieving the above object, the technical scheme that the utility model provides is as follows: construct a kind of rotary encoder, comprise that at least three equal circumference angles of space arrange and be pressed into by conductive material the terminal and the contacted brush of described terminal of sheet, described brush has at least three equal circumference angles and is arranged on the arrangement track that is parallel to described terminal and the resilient contact of mutual conduction, offers some apertures that arrange at the equal circumference angle at least on two in the described terminal; Comprise that also cylindric or round table-like axle core with described axle core Bao Na wherein and can center on the scrambler body that self axis freely rotates, described brush is installed in described axle core and faces on the end face of scrambler body, described terminal is located on the described scrambler body, described each terminal is by the plastic surface that is molded over described scrambler body, on the other end of described axle core or its outer circumference surface, be provided with some positioning tooths that arrange at the equal circumference angle, on described scrambler body, also be provided with the Location resilient piece that described positioning tooth matches.

Comprise also and receive the support of described Location resilient piece, axle core and scrambler body that be provided with the riveting pin on described support, described riveting pin riveted is at the back side of described scrambler body.

The extension downwards of the bottom of described each terminal passes described scrambler body and forms stitch, but the dress mode difference punching out of described stitch Yian becomes straight tabular or rectangular-shaped.

Be provided with the glue post on described scrambler body, be provided with through hole on described Location resilient piece, described Location resilient piece and described scrambler body are fastened and connected by described glue post and described through hole.

On described support, be provided with the feet that be used for connecting circuit plate identical with the installation direction of described stitch.

The beneficial effect of a kind of rotary encoder that the utility model provides is: the scrambler body is connected with the support riveted, and structure is firm; Each terminal is molded on the scrambler body stable performance by plastic; Location resilient piece and scrambler body are fastened and connected, and can prevent that Location resilient piece and scrambler body are stuck.

Description of drawings

Fig. 1 is a stereographic map of the present utility model;

Fig. 2 is an explosive view of the present utility model;

Fig. 3 is the stereographic map of embodiment of the present utility model.

Annotate: description of reference numerals

Scrambler body (1); Terminal (2); Brush (3); Axle core (4); Location resilient piece (5); Support (6); Resilient contact (7); Positioning tooth (8); Riveting pin (9); Feet (10); Glue post (11); Through hole (12); Stitch (13).

Embodiment

With reference to Fig. 1 and 2, a kind of rotary encoder is provided, comprise that three equal circumference angles of space arrange and be pressed into by conductive material the terminal (2) and the contacted brush of terminal (2) (3) of sheet, brush (3) has three equal circumference angles and is arranged on the arrangement track that is parallel to terminal (2) and the resilient contact (7) of mutual conduction, offers some apertures that arrange at the equal circumference angle at least two in the terminal (2); Comprise that also cylindric or round table-like axle core (4) wherein and not influences the scrambler body (1) that it freely rotates around self axis with axle core (4) Bao Na, brush (3) is installed in a core (4) and faces on the end face of scrambler body (1), terminal (2) is located on the scrambler body (1), each terminal (2) is by the plastic surface that is molded over scrambler body (1), on the other end of axle core (4), be provided with some positioning tooths (8) that arrange at the equal circumference angle, on scrambler body (1), also be provided with the Location resilient piece (5) that matches with positioning tooth (8); Comprise also and receive Location resilient piece (5), axle core (4) and scrambler body (1) and support (6) that be provided with riveting pin (9) on support (6), riveting pin (9) riveted is at the back side of scrambler body (1); Be provided with glue post (11) on scrambler body (1), be provided with through hole (12) on Location resilient piece (5), Location resilient piece (5) and scrambler body (1) are fastened and connected by glue post (11) and through hole (12).

When the utility model was specifically implemented: an axle core (4) drove a brush (3) and rotates, conducting or disconnect loop between each terminal (2), and then produce coded signal; Location resilient piece (5) positioning tooth (8) cooperates, and produces the sensation of location when making rotating shaft core (4).

With reference to Fig. 1 and 3, the extension downwards of the bottom of each terminal (2) passes scrambler body (1) and forms stitch, but the dress mode difference punching out of stitch Yian becomes straight tabular or rectangular-shaped; On support (6), be provided with the feet that be used for connecting circuit plate (10) identical with the installation direction of stitch.

Claims

1. rotary encoder, comprise that at least three equal circumference angles of space arrange and be pressed into by conductive material the terminal (2) and the contacted brush of described terminal (2) (3) of sheet, described brush (3) has at least three equal circumference angles and is arranged on the arrangement track that is parallel to described terminal (2) and the resilient contact (7) of mutual conduction, offers some apertures that arrange at the equal circumference angle at least two in the described terminal (2); It is characterized in that, comprise that also cylindric or round table-like axle core (4) with described axle core (4) Bao Na wherein and can center on the scrambler body (1) that self axis freely rotates, described brush (3) is installed in described axle core (4) and faces on the end face of scrambler body (1), described terminal (2) is located on the described scrambler body (1), described each terminal (2) is by the plastic surface that is molded over described scrambler body (1), on the other end of described axle core (4) or its outer circumference surface, be provided with some positioning tooths (8) that arrange at the equal circumference angle, on described scrambler body (1), also be installed with the Location resilient piece (5) that described positioning tooth (8) matches.

2. a kind of rotary encoder according to claim 1, it is characterized in that, also comprise and receive the support (6) of described Location resilient piece (5), axle core (4) and scrambler body (1), be provided with riveting pin (9) on described support (6), described riveting pin (9) riveted is at the back side of described scrambler body (1).

3. a kind of rotary encoder according to claim 1 is characterized in that, the extension downwards of the bottom of described each terminal (2) passes described scrambler body (1) and forms stitch, but the dress mode difference punching out of described stitch Yian becomes straight tabular or rectangular-shaped.

4. a kind of rotary encoder according to claim 1, it is characterized in that, on described scrambler body (1), be provided with glue post (11), be provided with through hole (12) on described Location resilient piece (5), described Location resilient piece (5) and described scrambler body (1) are fastened and connected by described glue post (11) and described through hole (12).

5. a kind of rotary encoder according to claim 2 is characterized in that, is provided with identically with the installation direction of described stitch on described support (6), is used for the feet (10) of connecting circuit plate.