Photoelectric encoder

Abstract

The invention discloses a photoelectric encoder, which comprises a shell, a shaft core assembly, a rotating assembly and a sensor assembly, wherein the shaft core assembly comprises a support, a shaftsleeve and a shaft core; the shaft sleeve is arranged on the outer surface of the shaft core in a sleeving manner and penetrates through an opening cavity in the support; the sensor assembly comprises an anti-dazzling screen, a PCB and photoelectric transceivers; the anti-dazzling screen is arranged on the PCB and arranged on the outer surface of the shaft core in a sleeving mode, and the photoelectric transceivers are arranged on the PCB and arranged on the two sides of the anti-dazzling screen; the PCB is also provided with a connector, and the connector penetrates through the shell and isconnected with a connecting wire; the rotating assembly comprises a fluctuation disc and a rotating elastic piece; and the outer surface of the shaft core is sleeved with the fluctuation disc, and therotating elastic piece is arranged on the side face of the fluctuation disc and makes contact with the fluctuation disc in a movable fit mode to form gear positioning contact. Due to the fact that the principle of signal generation is a photoelectric type, the service life is long; and meanwhile, the positioning hand feeling mode is changed into the mode that the rotating elastic piece makes contact with the side face of the fluctuation disc, large torque can be generated, and the sensing of an operator is facilitated.

Description

technical field [0001] The invention relates to the technical field of encoders, in particular to a photoelectric encoder. Background technique [0002] Encoders are widely used in various fields. They are devices that compile and convert signals or data into signal forms that can be used for communication, transmission and storage. [0003] At present, in some electronic products, such as car audio, car air conditioners, multimedia products, etc., the encoders used to realize functions such as volume control and function switching are generally shaft-type encoders. However, the existing shaft-type encoders on the market Most of the encoders adopt the structure of mechanical principle, that is, the signal is generated by the cooperation of the metal contact brush and the metal contact piece. This structure inevitably has the disadvantages of short service life and easy to generate cluttered signals, which is not conducive to normal use. , and will also lead to high cost inp...

AI Technical Summary

Problems solved by technology

[0003] At present, in some electronic products, such as car audio, car air conditioners, multimedia products, etc., the encoders used to realize functions such as volume control and function switching are generally shaft-type encoders. However, the existing shaft-type encoders on the market Most of the encoders adopt the structure of mechanical principle, that is, the signal is generated by the cooperation of the metal contact brush and the metal contact piece. This structure inevitably has the disadvantages of short service life and easy to generate cluttered signals, which is not conducive to normal use. , and will also lead to high cost input

In addition, because the positioning feel of the existing shaft-shank encoder is produced by vertically pressing the metal shrapnel on the plastic positioning point, the torque is relatively weak, and the feel of crisp sound cannot be produced.

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