Hall switch

A technology of Hall switch and magnetic conductive sheet, applied in the field of switches, can solve the problems of magnetic block leakage, low sensitivity, poor waveform, etc., and achieve the effect of reducing the magnetic leakage phenomenon and increasing the sensitivity

Inactive Publication Date: 2012-04-04
SHANGHAI GENITE CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The Hall switch generates an analog signal by using the magnetic field change of the Hall element to its position. In the prior art, a Hall toggle switch is made by using the Hall principle. The Hall toggle switch is to place the magnetic conductive sheet Near a magnetic block, the magnetic conductive sheet is connected to a circuit board. When the magnetic block is rotated, the magnetic flux passing through the magnetic conductive sheet changes. The direction

Method used

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Experimental program
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Effect test

Embodiment （ 1

[0021] figure 1 is a structural schematic diagram of the Hall switch of the present invention, please refer to figure 1 , a Hall switch, comprising: a casing 1, the casing 1 is made of a non-magnetic material, wherein a magnetic block 3 is rotatably installed in the casing 1; a magnetic sheet 2 is wound around On the outside of the magnetic block 3, the magnetic flux leakage of the magnetic block 3 in the magnetic conductive sheet 2 is reduced by adopting a winding method, the magnetic flux of the magnetic conductive sheet 2 becomes larger, and the sensitivity of the Hall switch is higher when the magnetic block 3 is rotated. The response is faster, and the output waveform is also smoother; the magnetic sheet 2 has two lead-out ends 7, and the two lead-out ends 7 do not touch each other. The large size causes the measuring device to be unable to accurately determine the direction of rotation of the magnetic block and thus fail to perform switch operations, and the measuring d...

Embodiment （ 2

[0026] figure 2 It is a schematic structural diagram of Embodiment 2 of the Hall switch of the present invention, please refer to figure 2 , on the basis of Embodiment 1, the outer surface of the magnetically conductive sheet 2 of the Hall switch of the present invention is provided with a magnetic isolating plate 4, the magnetically isolating plate 4 completely covers the outer surface of the magnetically conducting sheet 2, and the magnetically isolating plate 4 is used In order to isolate the interference of the external magnetic field, it avoids the decrease of precision or even failure when the Hall switch of the present invention is used in an occasion with strong electromagnetic radiation.

[0027] Further, a magnetic isolation cover can be placed above the magnetic isolation plate 3, which can isolate the interference from the top of the magnetic conductive sheet 2 that cannot be isolated by the magnetic isolation plate 3, so as to achieve a better anti-interference ...

Embodiment （ 3

[0029] image 3 is a structural cross-sectional view of Embodiment 3 of the Hall switch of the present invention, Figure 4 is a schematic structural diagram of Embodiment 3 of the Hall switch of the present invention, please refer to image 3 , Figure 4 , on the basis of the above-mentioned embodiments, the Hall switch of the present invention also includes a rocker 5 connected to the magnetic block 3, the rocker 5 is installed between the magnetic block 3 and the housing 1, and the magnetic block is driven by the rocker 5 3. It is more convenient to rotate; the rocker 5 is made of non-magnetic material to avoid magnetic flux leakage and to avoid the introduction of external interference.

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Abstract

The invention discloses a hall-switch which comprises a shell, wherein a magnetic block is rotatably arranged in the shell; and a magnetic conductive sheet is wound at the outer side of the magnetic block and is provided with two leading-out terminals which are not mutually contacted. Due to the adoption of the technical scheme, the hall switch solves the problems that the hall switch of the prior art has poor switching sensitivity and worse output wave shapes due to serious magnetic leakage caused by the non-closed structure of the magnetic conductive sheet; and the hall switch provided by the invention is provided with the magnetic conductive sheet adopting the closed structure, so that the magnetic leakage phenomenon is greatly reduced, and further the sensitivity of the hall-switch is greatly improved.

Description

technical field [0001] The invention relates to a switch, in particular to a Hall switch. Background technique [0002] The Hall switch has the characteristics of non-contact, low power consumption, long service life, and high response frequency. The interior is sealed and integrated with epoxy resin, so it can work reliably in various harsh environments. Hall switch can be applied to proximity switch, pressure switch, toggle switch, odometer, etc., as a new type of electrical accessories. [0003] The Hall switch generates an analog signal by using the magnetic field change of the Hall element to its position. In the prior art, a Hall toggle switch is made by using the Hall principle. The Hall toggle switch is to place the magnetic conductive sheet Near a magnetic block, the magnetic conductive sheet is connected to a circuit board. When the magnetic block is rotated, the magnetic flux passing through the magnetic conductive sheet changes. The direction of rotation is diff...

Claims

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Application Information

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IPC IPC(8): H03K17/90
Inventor 张连来于向晖
Owner SHANGHAI GENITE CONTROL TECH
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