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Composite magnet

A composite magnet and magnet technology, used in the manufacture of magnets, magnetic objects, inductors/transformers/magnets, etc., can solve the problems of weakening, high temperature resistance, weak magnetic field strength, etc., to achieve good magnetization or polarization effect, large remanence , the effect of stable performance

Inactive Publication Date: 2009-10-07
康双双
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, existing magnetization devices are mainly composed of ferrite permanent magnets or NdFeB magnets. For example, a magnetization device made of a single ferrite permanent magnet has the advantage that it is not easy to demagnetize, and the disadvantage is that the magnetic field strength is weak. High temperature resistance; another example is that the magnetization device made of a single NdFeB magnet has the advantage of strong magnetic field strength (the magnet with the strongest magnetic field strength among magnets at present), but the disadvantage is that it is not resistant to high temperature and is easily affected by environmental conditions, causing the magnetic field strength to be greatly weakened.

Method used

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  • Composite magnet

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Embodiment Construction

[0012] specific implementation

[0013] exist figure 1 Among them, the composite magnet (1) is composed of NdFeB magnet (2) and SmCo magnet or AlNiCo magnet or FeCrCo magnet or ferrite magnet and other high temperature resistant magnets (4) one of the magnets is self- The composite magnet (1) with a heat insulating layer (3) can be formed by adding a heat insulating material between the NdFeB magnet (2) and other magnets if necessary. Certainly also can utilize NdFeB magnet (2) and plastic soft magnet or rubber soft magnet self-priming together to form composite magnet (1), also can all self-priming plastics on both sides of NdFeB magnet (2) when needed Soft magnets or rubber soft magnets form a composite magnet (1) whose two sides are soft magnets and the middle of which is hard magnets.

[0014] The shape of the composite magnet (1) can be various shapes such as square, rectangle, circle, ellipse, tile type, and the size of the composite magnet is determined according to n...

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Abstract

The invention relates to a composite magnet (1), which consists of a neodymium iron boron magnet (2) and other magnets (4) in a self-absorption way; thermal insulating layers are arranged between the neodymium iron boron magnet (2) and other magnets; the composite magnet (1) has stable magnetic property, high temperature resistance and high magnetic field strength, and has the application advantages after combination that a plurality of superposed magnetic fields can be generated, density of line of magnetic force is high, and the power stroke is long, therefore, the high magnetic energy can be utilized to a greater degree and in wider range of fields, thus achieving the purposes of utilizing the high magnetic energy, saving energy and protecting the environment. The devices or equipments manufactured by utilizing the composite magnet (1) are widely applied and particularly can be applied at high temperature.

Description

Technical field [0001] The invention relates to a composite magnet, especially the composite magnet can make full use of the advantages of various magnets, and at the same time overcome the defect that the NdFeB magnet with the strongest magnetism in the existing magnets is not high in temperature resistance, and can be used in practical applications. Play an excellent magnetization effect, so that the magnetization effect is further improved. technical background [0002] At present, the known magnets include ferrite magnets, neodymium iron boron magnets, samarium cobalt magnets, alnico magnets, iron chromium cobalt magnets, soft magnets and the like. Ferrite magnets have a maximum remanence of 0.45T, a maximum energy product of 40KJ / m3, and a maximum temperature resistance of 120°C. The maximum remanence of samarium-cobalt magnets is 1.1T, a maximum energy product of 220KJ / m3, and a maximum temperature resistance of 300°C. , the maximum remanence of alnico magnets is 1.1T...

Claims

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Application Information

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IPC IPC(8): H01F7/00H01F41/02
Inventor 康双双
Owner 康双双
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