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A magnetic flux detection tool for a ring permanent magnet

A technology for detecting tooling and permanent magnets, which is applied to the use of electromagnetic devices for magnetic field measurement, the size/direction of the magnetic field, etc., can solve the problem of low measurement efficiency, and achieve the effect of simple positioning, high accuracy and efficiency

Active Publication Date: 2021-10-22
HENGDIAN GRP DMEGC MAGNETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention overcomes the shortcomings of the need to arrange corresponding positioning structures or determine the center point of the magnet in the current testing process of the ring permanent magnet, which is relatively complicated and the measurement efficiency is low, and provides a magnetic flux detection tool for the ring permanent magnet, which can Ring permanent magnets of different specifications are tested to quickly determine the center of the magnet and improve the detection efficiency

Method used

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  • A magnetic flux detection tool for a ring permanent magnet
  • A magnetic flux detection tool for a ring permanent magnet
  • A magnetic flux detection tool for a ring permanent magnet

Examples

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Comparison scheme
Effect test

Embodiment 1

[0023] A kind of magnetic flux detection frock of annular permanent magnet 11, such as figure 1 , 2 As shown, it includes a base, a measuring coil 8, a cone 7 and a driver. The top of the base is provided with a top plate 1, the base includes a top plate 1 and a bottom plate 3, and the driver is arranged on the bottom plate 3. The measuring coil 8 is arranged on the top plate 1 and is surrounded by the measuring coil 8. The axis direction of the measuring coil 8 is arranged vertically. The cone 7 is arranged on the top plate 1. The cone 7 is coaxial with the measuring coil 8. Connect the cone 7. Specifically, the telescopic end of the driver is fixedly connected with a top block 6, and the top block 6 protrudes upwards to have a number of ejector rods 5. The top plate 1 is provided with a passage hole corresponding to the ejector rod 5, and the ejector rod 5 passes through. The hole abuts against the bottom of the cone 7 , and the push rods 5 are equidistantly arranged around...

Embodiment 2

[0030] Such as image 3 As shown, the conical body 7 is a rotating body, and the generatrix of the rotating body is an outwardly convex arc.

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Abstract

The invention discloses a magnetic flux detection tool for an annular permanent magnet, aiming at solving the problems that a corresponding positioning structure needs to be arranged in the current detection process of an annular permanent magnet, or the determination of the center point of the magnet is complicated and the measurement efficiency is low. The invention includes a base, a measuring coil, a cone and a driver. The top of the base is provided with a top plate. The measuring coil is arranged on the top plate and is surrounded by the measuring coil. The measuring coils are coaxial, the telescopic end of the driver moves up and down and is connected to the cone, and the measuring coils are connected with a flux meter. The cone is used for positioning, which can be adapted to ring permanent magnets of various specifications. When the ring permanent magnet is placed on the cone, the center positioning is completed, the positioning is simple, and the detection accuracy and efficiency are high.

Description

technical field [0001] The invention relates to a detection device, more specifically, it relates to a magnetic flux detection tool for an annular permanent magnet. Background technique [0002] With the improvement of people's living standards, home appliances and smart appliances are becoming more and more popular, such as home theaters, microwave ovens, washing machines, mahjong machines, computers and mobile phones. These electrical appliances are mainly divided into two categories: one is with a sound accessory speaker; the other is with a motor. And 90% of speakers are inseparable from a key component, the ring magnet. Most low-power motors are also equipped with magnetic rings. For the quality stability of the product, it is often necessary to control the magnetic properties of the magnet. The current measurement methods include measuring the surface magnetic field, measuring magnetic parameters (using demagnetization curves), measuring magnetic flux, and measuring...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/06
CPCG01R33/06
Inventor 翁凤华吴翔亮
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD
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