CN-122001358-A - Magneto-sensitive element structure of non-contact dual-redundancy position switch

Abstract

The utility model provides a magnetic sensor structure of non-contact dual-redundancy position switch, includes coil one, separates magnetic sheet, coil two and magnetic tank, be equipped with recess and oval groove on the magnetic tank, coil one and coil two are installed in the recess of magnetic tank, separate the magnetic sheet and install in oval inslot, separate magnetic sheet terminal surface and magnetic tank terminal surface and flush, separate the magnetic sheet to be located between coil one and the coil two, realize dual-redundancy's testing function through setting up two coils, the recess is the ring channel, coil one and coil two are annular, the magnetic tank is high magnetic alloy material, separates the magnetic sheet effectively to prevent interference between two coils, and this magnetic sensor interference killing feature is strong, and the reliability is high, if trouble all the way is still possible to continue to use in the flight, does not influence the safety of system work and flight, improves competitiveness and economic benefits, effectively promotes the flight safety of aircraft.

Inventors

• Lu Xiya
• JU HONGFU
• WANG XIAOYAN

Assignees

• 贵州新安航空机械有限责任公司

Dates

Publication Date

20260508

Application Date

20251211

Claims (5)

1. 1. The magnetic sensor structure of the non-contact type dual-redundancy position switch is characterized by comprising a first coil (1), a magnetic isolation sheet (2), a second coil (3) and a magnetic tank (4), wherein a groove and an elliptical groove are formed in the magnetic tank (4), the first coil (1) and the second coil (3) are arranged in the groove of the magnetic tank (4), the magnetic isolation sheet (2) is arranged in the elliptical groove, the end face of the magnetic isolation sheet (2) is flush with the end face of the magnetic tank (4), and the magnetic isolation sheet (2) is positioned between the first coil (1) and the second coil (3) and realizes the dual-redundancy detection function by arranging two coils.
2. 2. The structure of the magneto-resistive element of the non-contact dual-redundancy position switch of claim 1, wherein said recess is an annular groove, and said first coil (1) and second coil (3) are annular.
3. 3. The structure of the magnetic sensor of the non-contact dual-redundancy position switch of claim 1, wherein the magnetic tank (4) is made of high magnetic conductive alloy.
4. 4. The structure of the magneto-sensitive element of the non-contact dual-redundancy position switch of claim 1, wherein the first coil (1) and the second coil (3) are made of self-adhesive enameled wires.
5. 5. The magnetic sensor structure of the non-contact dual-redundancy switch of claim 1, wherein the magnetism isolating sheet (2) is made of high-performance magnetism isolating material, the height of the magnetism isolating sheet (2) is larger than or equal to the height of the coil, the width is larger than or equal to 1mm, and the length is larger than or equal to the diameter of the coil.

Description

Magneto-sensitive element structure of non-contact dual-redundancy position switch Technical Field The invention relates to the technical field of testing, in particular to a magneto-sensitive element structure of a non-contact dual-redundancy position switch. Background The non-contact type position switch is a sensor device which can detect the position of an object and trigger a switch signal without directly contacting the object to be detected, is widely used for detecting the position, is applied to the fields of industrial automation, aerospace and the like, such as landing gear position confirmation, cabin door closing state, control surface position feedback and the like, is usually detected by using a magneto-sensitive element, is usually a coil, is usually a single coil, has lower reliability, and is designed to independently work, so that the magneto-sensitive element structure of the non-contact type dual-redundancy position switch is designed. Disclosure of Invention In order to solve the above-mentioned problems in the prior art, the present invention provides a magneto-sensitive element structure of a non-contact dual-redundancy position switch. The invention discloses a magnetic sensor structure of a non-contact dual-redundancy position switch, which comprises a first coil, a magnetic isolation sheet, a second coil and a magnetic tank, wherein a groove and an elliptical groove are formed in the magnetic tank, the first coil and the second coil are arranged in the groove of the magnetic tank, the magnetic isolation sheet is arranged in the elliptical groove, the end face of the magnetic isolation sheet is level with the end face of the magnetic tank, and the magnetic isolation sheet is positioned between the first coil and the second coil, so that the dual-redundancy detection function is realized by arranging two coils. Further, the groove is an annular groove, and the first coil and the second coil are annular. Furthermore, the magnetic tank is made of high magnetic conduction alloy, and magnetic annealing treatment is carried out during processing to improve magnetic permeability. Furthermore, the coil I and the coil II are made of self-adhesive enameled wires, and the reliability is good. Furthermore, the magnetism isolating sheet is made of high-performance magnetism isolating materials, such as aluminum materials, the height of the magnetism isolating sheet is larger than or equal to the height of the coil, the width of the magnetism isolating sheet is larger than or equal to 1mm, the length of the magnetism isolating sheet is larger than or equal to the diameter of the coil, the two coils are effectively isolated, and the two coils are prevented from being interfered. Compared with the prior art, the magnetic sensor structure of the non-contact dual-redundancy position switch has the advantages that the dual-redundancy detection function is realized by arranging the two coils and the magnetism isolating sheet on the magnetic tank, the magnetism isolating sheet effectively prevents interference between the two coils, the anti-interference capability is strong, the reliability is high, if one path of faults occur during flight, the other path of faults still can be continuously used, the safety of system work and flight is not affected, the competitive capacity and economic benefit are improved, and the flight safety of an airplane is effectively improved. Drawings FIG. 1 is a schematic diagram of the structure of the present invention; in the figure, a first coil 1, a magnetism isolating sheet 2, a second coil 3 and a magnetic tank 4. Detailed Description As shown in fig. 1, a magneto-sensitive element structure of a non-contact dual-redundancy position switch comprises a first coil 1, a magnetism isolating sheet 2, a second coil 3 and a magnetic tank 4, wherein a groove and an elliptical groove are formed in the magnetic tank 4, the first coil 1 and the second coil 3 are arranged in the groove of the magnetic tank 4, the magnetism isolating sheet 2 is arranged in the elliptical groove, the end face of the magnetism isolating sheet 2 is flush with the end face of the magnetic tank 4, the magnetism isolating sheet 2 is positioned between the first coil 1 and the second coil 3, and the dual-redundancy detection function is realized by arranging two coils. The groove is an annular groove, the first coil 1 and the second coil 3 are annular, The magnetic tank 4 is made of high magnetic conduction alloy, magnetic annealing treatment is carried out during processing to improve magnetic permeability, the first coil 1 and the second coil 3 are made of self-adhesive enameled wires, reliability is good, the magnetic isolation sheet 2 is made of high-performance magnetic isolation materials, such as aluminum materials, the height of the magnetic isolation sheet 2 is greater than or equal to that of the coils, the width of the magnetic isolation sheet is greater than or equal to 1mm, the length of