Multidirectional button and knob structure with light guide ring

Abstract

The invention discloses a multidirectional button and knob structure with a light guide ring. The multidirectional button and knob structure comprises a knob support and a knob sleeve, wherein a revolute pair is arranged between the knob support and the knob sleeve, the knob sleeve is uniformly provided with rectangular lattices along the circumferential direction, and the rectangular lattices are matched with a photoelectric sensor to generate a rotating signal. The knob sleeve is internally provided with a structure with a middle button and buttons in four directions. The light guide ring comprises a light reflecting surface with a sawtooth structure, and light can be uniformly dispersed along the circumferential direction, so that a lamplight dead zone is eliminated. The light guide ring and the knob sleeve are both arranged on the knob support, thus, the tolerance stackup in mounting is reduced, and uniform gaps can be kept between the light guide ring and the knob sleeve. A hoodle slides on a gear structure of the knob sleeve, so that a rhythm handfeeling is created, and the torque of a knob is conveniently adjusted. All the parts are sealed between the knob sleeve and the knob support and mounted from the inside to the outside, and after being assembled with an automobile sound panel, the knob support is also sealed and cannot jump out when impact and collision happen.

Description

Technical field: [0001] The invention relates to the field of electricity, in particular to a button and knob module used for a control panel of an electronic product, in particular to a multidirectional button knob structure with a light guide ring. Background technique: [0002] In the prior art, the knob assembly and the light guide ring on the car audio equipment are installed independently. The light guide ring is fixed on the plastic cover of the car audio equipment by buckle or hot stamping. The adjustment function of the car audio equipment is realized by rotating the knob in the knob assembly and driving the encoder. The knob is arranged in the light guide ring. The knob assembly is composed of a knob jacket, a knob core and a knob cover. The knob cover can be electroplated or made into various anti-slip patterns according to the requirements of different models; the shaft of the knob core is designed with a fixed rod, and the knob cover is usually made different...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a multi-directional button knob structure with a light guide ring. The multi-directional button knob structure with a light guide ring should solve the problem of the large amount of shaking and vibration of the knob on the car audio equipment in the prior art. Technical problems such as noise generation, large errors in assembly and matching with the light guide ring, few functions, and potential safety hazards in use

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