Encoder base and encoder using same

Abstract

The invention discloses an encoder base and an encoder using the same. The encoder base comprises a plurality of groups of terminal hardware sheets and a plastic body wrapped outside the terminal hardware sheets in modeling mode, wherein each terminal hardware sheet comprises a terminal and an electric brush part, electric brushes of the electric brush part are formed in stamping forming mode and higher than the plane of the electric brush part, an avoidance position is arranged under the electric brushes, an extending part is arranged on the lateral surface of the electric brush part and adhered onto the bottom surface of the electric brush part after being bent so as to cover the avoidance position, and a plastic body is integrally wrapped and modeled with the extending part. The extending part is adhered onto the bottom surface of the electric brush part after being bent so as to cover the avoidance position, and accordingly the electric brushes cannot be damaged due to mutually staggered distribution. When the encoder base is used on the encoder, a bottom cover for protecting the electric brushes is not needed to be additionally arranged, the integral thickness of the encoder is remarkably improved, the encoder base and the encoder are waterproof, further materials are saved, and assembling hour is reduced.

Description

technical field [0001] The invention relates to the technical field of encoders and parts thereof, in particular to an encoder base and an encoder using the base. Background technique [0002] The reading of the coded information of the contact rotary encoder is completed by the code disc and the contact brush. The base of the existing contact rotary encoder is mainly composed of a terminal hardware sheet and a plastic body coated outside the terminal hardware sheet. The terminal hardware sheet mainly includes a terminal and a brush part. If it has a switch function, it also includes a switch contact. Point, the brush of the brush part is higher than the plane of the brush part due to stamping and forming, and there is a space under the brush. For the encoder base with this structure, during the storage and transportation of the terminal hardware pieces, multiple terminal hardware pieces will be superimposed on each other and the brushes will be staggered, which is easy to ...

AI Technical Summary

Problems solved by technology

For the encoder base with this structure, during the storage and transportation of the terminal hardware pieces, multiple terminal hardware pieces will be superimposed on each other and the brushes will be staggered, which is easy to damage the brushes; when the terminal hardware pieces and the plastic body are injected, the other The vacancy under the brush cannot be injected, resulting in a through hole under the brush part of the base. Therefore, when the encoder is produced, a bottom cover needs to be installed under the base to protect the brush structure. The bottom cover not only increases the The thickness of the encoder, and the joint between the bottom cover and the base is prone to gaps, which is not conducive to the waterproofing of the encoder, and also consumes materials and assembly man-hours

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