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Integrated magnetic core for magnetic sensor

A magnetic sensor, an integrated technology, applied in the field of sensors, can solve the problems of single function, can not be used for special occasion detection, magnetic core can not detect temperature, etc., to ensure magnetic sensitivity, improve Curie temperature sensitivity and performance. Thermal stability performance, the effect of sensitive magnetic sensitivity detection

Inactive Publication Date: 2017-07-04
FOSHAN CHUANDONG MAGNETOELECTRICITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The core of the existing magnetic sensor is the magnetic core, but the existing magnetic core can not detect the temperature, only can detect the magnetic field, the function is single, and it cannot be used for the detection needs of special occasions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An integrated magnetic core for a magnetic sensor, comprising a soft magnetic part and a hard magnetic part arranged at both ends of the soft magnetic part, the soft magnetic part and the hard magnetic part are provided with cavities for placing the magnetic sensor, the The soft magnetic part and the hard magnetic part are integrally formed; the width of the soft magnetic part is smaller than that of the hard magnetic part, so that the side of the magnetic core structure is formed with a groove that is convenient for magnetizing the hard magnetic part, characterized in that, The main component of the soft magnetic part and its mass percentage is Fe 2 O 3 : 30%, NiO: 20%, ZnO: 0.2%, CuO: 5%, Co 2 O 3 : 0.15%, Si0: 1.0%, Mn0: 2.5%, Cr0 6 :2.0%, Cu0 2 :1.5%, C≤0.08%, P≤0.05%, S≤0.04%, Fe is the balance.

[0020] Further, the side surface of the magnetic core structure is symmetrically provided with two clamping planes which are convenient for the magnetizing device to clamp th...

Embodiment 2

[0030] An integrated magnetic core for a magnetic sensor, comprising a soft magnetic part and a hard magnetic part arranged at both ends of the soft magnetic part, the soft magnetic part and the hard magnetic part are provided with cavities for placing the magnetic sensor, the The soft magnetic part and the hard magnetic part are integrally formed; the width of the soft magnetic part is smaller than that of the hard magnetic part, so that the side of the magnetic core structure is formed with a groove that is convenient for magnetizing the hard magnetic part, characterized in that, The main component of the soft magnetic part and its mass percentage is Fe 2 O 3 : 35%, NiO: 25%, ZnO: 2.0%, CuO: 8%, Co 2 O 3 : 0.25%, Si0: 1.5%, Mn0: 3.5%, Cr0 6 :2.5%, Cu0 2 : 2%, C≤0.08%, P≤0.05%, S≤0.04%, Fe is the balance.

[0031] Further, the side surface of the magnetic core structure is symmetrically provided with two clamping planes which are convenient for the magnetizing device to clamp the...

Embodiment 3

[0041] An integrated magnetic core for a magnetic sensor, comprising a soft magnetic part and a hard magnetic part arranged at both ends of the soft magnetic part, the soft magnetic part and the hard magnetic part are provided with cavities for placing the magnetic sensor, the The soft magnetic part and the hard magnetic part are integrally formed; the width of the soft magnetic part is smaller than that of the hard magnetic part, so that the side of the magnetic core structure is formed with a groove that is convenient for magnetizing the hard magnetic part, characterized in that, The main component of the soft magnetic part and its mass percentage is Fe 2 O 3 : 40%, NiO: 30%, ZnO: 3.5%, CuO: 10%, Co 2 O 3 : 0.35%, Si0: 2.0%, Mn0: 4.0%, Cr0 6 :3.0%, Cu0 2 : 2.5%, C≤0.08%, P≤0.05%, S≤0.04%, Fe is the balance.

[0042] Further, the side surface of the magnetic core structure is symmetrically provided with two clamping planes which are convenient for the magnetizing device to clamp ...

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PUM

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Abstract

The invention discloses a material for additive manufacturing of a magnetic core. The material comprises a soft magnetic part and hard magnetic parts, wherein the hard magnetic parts are arranged at two ends of the soft magnetic part, cavities are formed in middle parts of the soft magnetic part and the hard magnetic parts and are used for placing magnetic sensitive components, the soft magnetic part and the hard magnetic parts are integratedly formed, the width of the soft magnetic part is smaller than those of the hard magnetic parts, a groove is formed in a side surface of a magnetic core structure and is conveniently used for magnetizing the hard magnetic parts, and the main constituents of the soft magnetic part based on percent by mass are as follows: 30-40% of Fe2O3, 20-30% of NiO, 0.2-3.5% of ZnO, 5-10% of CuO, 0.15-0.35% of Co2O3, 1.0-2.0% of SiO, 2.5-4.0% of MnO, 2.0-3.0% of CrO3, 1.5-2.5% of CuO2, less than or equal to 0.08% of C, less than or equal to 0.05% of P and less than or equal to 0.04% of S with the balance of Fe. With an integrated magnetic core for a magneto-dependent sensor, provided by the invention, the magneto-dependent sensor can sense change of a magnetic field, meanwhile, a temperature can also be sensed, various demands are adapted, the magnetic sensitivity can also be ensured, and sensitive magnetic detection is performed.

Description

Technical field [0001] The invention belongs to the field of sensors, and specifically relates to an integrated magnetic core for a magnetic sensor. Background technique [0002] The core of the existing magnetic sensor is the magnetic core, but the existing magnetic core cannot detect the temperature, but can only detect the magnetic field, has a single function, and cannot be used for the detection needs of special occasions. Summary of the invention [0003] In order to solve the above technical problems, the present invention provides an integrated magnetic core for a magnetic sensor. [0004] In order to achieve the above objectives, the technical solutions adopted by the present invention are: [0005] An integrated magnetic core for a magnetic sensor, comprising a soft magnetic part and a hard magnetic part arranged at both ends of the soft magnetic part, the soft magnetic part and the hard magnetic part are provided with cavities for placing the magnetic sensor, the The soft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F3/10H01F1/34C04B35/26C22C29/12G01D5/12
CPCH01F3/10C04B35/265C04B2235/3241C04B2235/3262C04B2235/3275C04B2235/3279C04B2235/3281C04B2235/3284C04B2235/3418C04B2235/405C04B2235/42C04B2235/422C22C29/005C22C29/12G01D5/12H01F1/344H01F2003/106
Inventor 龙克文颜天宝
Owner FOSHAN CHUANDONG MAGNETOELECTRICITY