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Non-contact rotary switch

A rotary switch, non-contact technology, applied in the field of switches, can solve problems such as broken springs, short life of rotary switches, plastic deformation, etc.

Pending Publication Date: 2021-09-14
连云港杰瑞电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the life of the rotary switch using the contact scheme is short. After long-term use, there will be poor contact between the moving contact piece and the static contact piece, and there is a risk of fracture and plastic deformation of the spring after reaching the fatigue life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, with reference to figure 1 —7, it should be noted that, Image 6 Among them, "gear positioning balance position 1" and "gear positioning balance position 2" are actually the two pulse level signals of A and B when the switch shaft 3 is not turned, and "channel A" and "channel B" are the following A, B two-way pulse level number;

[0042] A non-contact rotary switch,

[0043] Including the outer casing 1, the outer casing 1 can be formed as a hollow cylindrical body whose cross-section is in the shape of a ring, and has,

[0044] The calculation board 2, the calculation board 2 can be formed into a cylindrical structure with a circular cross section;

[0045] The switch shaft 3 that can be rotated and pressed is placed under the resolving board 2. Specifically, the bottom surface of the outer shell 1 can be formed with a hole for installing the bearing 4, and the switch shaft 3 can be installed in the outer shell 1 through the bearing 4. For example, us...

Embodiment 2

[0051] Embodiment 2, a non-contact rotary switch described in Embodiment 1, when the switch shaft 3 is rotated, the magnet located on the switch shaft 3 rotates relative to the magnetic conversion chip 6, and the magnetic conversion chip 6 located above the magnet detects After the direction of the magnetic field of the magnet changes, two sinusoidal signals V with a phase difference of 90° are output 0 Sinθ and cosine signal V 0 Cosθ, the processor 7 outputs two-way pulse level signals A and B from the sine signal and cosine signal, and defines that when the switch shaft 3 rotates clockwise, the sine signal V 0 Sinθ leading cosine signal V 0 Cosθ90°, when the switch axis 3 rotates counterclockwise, the cosine signal V 0 Cosθ leads the sinusoidal signal V 0 Sinθ90°;

[0052] When the switch shaft 3 is pressed, the distance between the magnet on the switch shaft 3 and the magnetic conversion chip 6 decreases, and the magnetic conversion chip 6 senses that the magnetic field...

Embodiment 3

[0053] Embodiment 3, a non-contact rotary switch described in Embodiment 1,

[0054] The rotation damping assembly is composed of a rotation absorbing part placed on the switch shaft 3 and magnetized according to the rotation direction of the switch shaft 3, and a rotating damping part placed in the outer shell 1 with an adsorption surface capable of generating suction with the rotating absorbing part,

[0055] The rotary adsorption part includes a toothed disc 8 fixed on the switch shaft 3, and the toothed disc 8 is provided with a first axially magnetized magnetic ring 9 for magnetizing the toothed disc 8;

[0056] The outer shell 1 corresponding to the gear plate 8 is provided with a gear ring 10 arranged concentrically, and there is an adsorption gap between the tooth tips of the inner teeth of the gear ring 10 and the tooth tips of the outer teeth of the gear plate 8 .

[0057] In Embodiment 3, both the outer peripheral surface of the toothed disc 8 and the inner peripher...

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Abstract

The invention relates to a non-contact rotary switch. The non-contact rotary switch comprises L an outer shell in which a resolving plate is arranged; and a switch shaft which is arranged below the resolving plate and can be rotated and pressed. The free end of the switch shaft extends out of the outer shell; a rotary damping assembly, a pressing damping assembly and a radial magnetizing magnet are arranged in the outer shell; a processor capable of outputting pulse signals is mounted on the resolving board; and when the switch shaft is rotated or pressed, the magnetic conversion chip outputs sine and cosine signals after detecting the change of the axial magnetic field of the magnet, and the processor outputs corresponding pulse signals according to the rotation or pressing condition by collecting the sine and cosine signals output by the magnetic conversion chip. The rotary switch enables the magnetic field direction and the magnetic field intensity of the radial magnetizing magnet to be monitored by the magnetic conversion chip in a non-contact mode through different operation modes of rotation or pressing, so that sine and cosine signals are output, corresponding pulse signals are output according to different rotation directions, rotation angles and pressing conditions, the operability is high, and the service life is long.

Description

technical field [0001] The invention relates to a switch, in particular to a non-contact rotary switch. Background technique [0002] The rotary switch is mainly used on the front of the instrument or the control panel of audio-visual equipment and household appliances. Its main functions are function switching, volume adjustment, speed adjustment, temperature adjustment, etc. The traditional rotary switch uses moving contacts, static contacts and springs for positioning. Adjust the output pulse level through the on-off of the moving reed and the static contact. [0003] However, the life of the rotary switch using the contact scheme is short. After long-term use, there will be poor contact between the moving contact piece and the static contact piece, and the risk of fracture and plastic deformation of the spring after reaching the fatigue life. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a non-contact swit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H36/00
CPCH01H36/00
Inventor 石洪周柏郭潜高虎程亚博穆如传李重希韦厚余刘承志
Owner 连云港杰瑞电子有限公司
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