High-temperature insulation composite, insulated conductor and magnetic element

A technology for insulated wires and magnetic components, applied in the fields of insulated wires and magnetic components, high temperature resistant insulating compositions, and insulating compositions, can solve the problems of low production efficiency, high assembly difficulty and cost, and low space utilization of magnetic components, etc. Achieve the effect of improving power density and performance, reducing manufacturing costs, and improving space utilization

Active Publication Date: 2010-10-13
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the magnetic components produced by this method have better magnetoelectric properties, this method still has relatively high assembly difficulty and cost, low production efficiency, and is not suitable for mass production. Disadvantages such as low utilization rate and unsuitability for high power density electronics

Method used

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  • High-temperature insulation composite, insulated conductor and magnetic element
  • High-temperature insulation composite, insulated conductor and magnetic element
  • High-temperature insulation composite, insulated conductor and magnetic element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] In the present invention, the organic material can be DowCorning's silicone resin OE6630, and the inorganic bonding material can be glass powder (preferably glass powder for sealing) with a softening temperature of about 450 degrees Celsius and a particle size of about 10 μm. The weight percentage content is in 10%-90%. Subsequently, the composition is evenly coated on the surface of the wire, baked and cured. After the cured insulating coating layer is sintered at 650 degrees Celsius for a period of time, the strength and insulating properties of the sintered product are still good. In this embodiment, its volume resistivity is higher than 1Mohm.m, and when the glass powder content is more than 40% , the strength is higher than ordinary iron aluminum silicon (FeAlSi).

Embodiment 2

[0044] In the present invention, the organic material can be polyimide, and the inorganic bonding material is glass powder (preferably glass powder for sealing) with a softening temperature of about 450 degrees Celsius and a particle size of about 10 μm, wherein the weight percentage of the glass powder In 10%-90%. Subsequently, the composition is evenly coated on the surface of the wire, baked and cured. After the cured insulating coating layer is sintered at 600 degrees Celsius for a period of time, the sintered product has good strength and insulation performance, and its volume resistivity is higher than 1 Mohm.m in this embodiment.

Embodiment 3

[0046] In the present invention, the organic material can be DowCorning's silicone resin OE6630, and the inorganic bonding material can be glass powder (preferably glass powder for sealing) with a softening temperature of about 450 degrees Celsius and a particle size of about 10 μm. The high temperature resistant insulating composition is formulated with the inorganic bonding material in equal proportions of 10:10, 10:7, 10:6 and 10:4. Subsequently, these compositions are respectively uniformly coated on the surface of the wire, baked and cured, wherein the thickness of the insulating coating layer applied to the surface of the wire (such as copper wire) is about 30 μm. Then, the insulated wire is wound into an insulated coil, and embedded in iron-aluminum-silicon (FeAlSi) magnetic material powder at, for example, 20 ton / cm 2 pressure compression molding. Subsequently, after annealing at 650 degrees Celsius for about one hour, the obtained magnetic components, such as inducto...

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Abstract

The invention relates to a high-temperature insulation composite, an insulated conductor and a magnetic element. The high-temperature insulation composite comprises an organic material and inorganic bond materials, wherein the weight percent content of the inorganic bond materials is between 10% and 90%; and the high-temperature insulation composite still has strength and insulating property after being subject to the process of high temperature above 400 DEG C, can be used for manufacturing the novel integrated magnetic element with high performance; and an insulated coil coated with the high-temperature insulation coating can be directly embedded in magnetic materials requiring high temperature annealing/sintering, thereby greatly improving the production efficiency of the magnetic element and being suitable for large-scale bulk production, improving the space use ratio of the magnetic element, reducing the manufacturing cost of the magnetic element, and improving the power density and performance of relative electronic products.

Description

technical field [0001] The invention relates to an insulating composition, an insulated wire and a magnetic element, in particular to a high-temperature-resistant insulating composition, an insulated wire using the high-temperature-resistant insulating composition as an insulating coating layer, and a magnetic element using the insulated wire. Background technique [0002] Magnetic components such as transformers and inductors are important components widely used in power supply systems or electrical equipment. The magnetic element mainly includes a coil and a magnetic core, wherein the magnetic core can be made of soft magnetic material, for example. One of the soft magnetic materials commonly used in magnetic cores of magnetic components is iron powder cores. In the prior art, iron powder cores are used to make magnetic components. For example, the method of inductance is as follows: first, provide a wire, and coat the wire with ordinary The insulating varnish is formed i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/00C08L79/08C08L67/00C08K3/40C08K7/14C08K3/38C08K3/22H01R3/00H01B7/02H01B7/29H01F27/32
Inventor 洪守玉杨威曾剑鸿应建平
Owner DELTA ELECTRONICS INC
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