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Integrated coil inductor

A forming coil and integrated technology, applied in the field of inductors, can solve the problems of incomplete inductance products, inductance with too large volume not allowed, complex production process, etc.

Pending Publication Date: 2019-07-26
深圳市斯比特电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally, in order to ensure that large current inductors can carry a larger rated current, enamelled round copper wires or flat copper wires with larger cross-sectional areas are often used as coils of inductance, enameled round copper wires or flat copper wires with larger cross-sectional areas Not only is it difficult to process and wind, but it also increases the volume of the inductor. However, high-density rate power supplies generally do not allow excessively large inductors. Therefore, inductors that use enameled round copper wires or flat copper wires with large cross-sectional areas as coils are common. Due to the limitation of volume, the production of inductance products cannot be completed
Moreover, the coil of enamelled round copper wire or flat copper wire generally includes two parts of conductor and insulating layer.
[0004] In addition, in the existing high-current inductors made of enamelled round copper wires or flat copper wires, since the enamelled round copper wires or flat copper wires have a greater impact on the insulating layer covering the surface of the bare wires during the production process, High heat resistance requirements, so inductors made of enamelled round copper wires or flat copper wires often have better heat resistance performance, so there is often no design for heat dissipation in inductors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Step 1: Mix and grind 4 parts of carbon powder, 15 parts of silicon carbide, and 6 parts of nano-zinc oxide to an average particle size of 0.2 μm, and then place it in a high-temperature furnace at 1500 ° C for 6 hours, and cool to room temperature after the calcination to obtain a resistant grinding mixture;

[0041] Step 2: Add 40 parts of acrylic resin, 8 parts of polyethylene wax, 5 parts of hydroxyethyl cellulose, 15 parts of sodium silicate, 50 parts of deionized water and the wear-resistant mixture prepared in step 1 into a high-speed mixer , at a speed of 1800 rev / min, after stirring for 20 minutes to mix evenly, a wear-resistant coating is obtained;

[0042] Step 3: Apply the wear-resistant coating prepared in step 2 evenly on the surface of the integrally formed copper strip, and after drying, the integrally formed copper strip with the wear-resistant coating on the surface is obtained.

Embodiment 2

[0044] Step 1: Mix and grind 8 parts of carbon powder, 18 parts of silicon carbide and 10 parts of nano-zinc oxide to an average particle size of 0.3 μm, then place it in a high-temperature furnace at 1800 ° C for 6 hours, cool to room temperature after the calcination, and obtain grinding mixture;

[0045] Step 2: Add 50 parts of acrylic resin, 10 parts of polyethylene wax, 8 parts of hydroxyethyl cellulose, 20 parts of sodium silicate, 65 parts of deionized water and the wear-resistant mixture prepared in step 1 into a high-speed mixer , at a speed of 2000 rev / min, after stirring for 25 minutes to mix evenly, a wear-resistant coating is obtained;

[0046] Step 3: Apply the wear-resistant coating prepared in step 2 evenly on the surface of the integrally formed copper strip, and after drying, the integrally formed copper strip with the wear-resistant coating on the surface is obtained.

Embodiment 3

[0048] Step 1: Mix and grind 12 parts of carbon powder, 25 parts of silicon carbide and 15 parts of nano-zinc oxide to an average particle size of 0.4 μm, then place it in a high-temperature furnace at 1800 ° C for 8 hours, cool to room temperature after the calcination, and obtain grinding mixture;

[0049] Step 2: Add 60 parts of acrylic resin, 15 parts of polyethylene wax, 10 parts of hydroxyethyl cellulose, 28 parts of sodium silicate, 80 parts of deionized water and the wear-resistant mixture prepared in step 1 into a high-speed mixer , at a speed of 2000 rev / min, after stirring for 30 minutes to mix evenly, a wear-resistant coating is obtained;

[0050] Step 3: Apply the wear-resistant coating prepared in step 2 evenly on the surface of the integrally formed copper strip, and after drying, the integrally formed copper strip with the wear-resistant coating on the surface is obtained.

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PUM

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Abstract

The invention discloses an integrated coil inductor. The integrated coil inductor comprises magnetic cores, a coil and air gap plates; the magnetic cores and the air gap plates are oppositely arrangedin pairs to form an concentric-square-shaped structure; and the coil is arranged on the magnetic core on one side in a sleeving mode, and is of a rectangular square tube structure formed by stampingand bending an integrated copper strip. According to the integrated coil inductor, a large current can be borne without increasing the volume of the inductor, and the requirements of the electrical technical indexes such as an inductance value, direct-current resistance, a withstand voltage and the like, and the heat dissipation performance of the inductor are met.

Description

technical field [0001] The invention belongs to the technical field of inductors, and in particular relates to an integrally formed coil inductor. Background technique [0002] An inductor is a component that converts electrical energy into magnetic energy and stores it. It is similar in structure to a transformer, but has only one winding. Inductors are generally composed of skeletons, windings, shields, packaging materials, magnetic cores or iron cores. [0003] Generally, in order to ensure that large current inductors can carry a larger rated current, enamelled round copper wires or flat copper wires with larger cross-sectional areas are often used as coils of inductance, enameled round copper wires or flat copper wires with larger cross-sectional areas Not only is it difficult to process and wind, but it also increases the volume of the inductor. However, high-density rate power supplies generally do not allow excessively large inductors. Therefore, inductors that use ...

Claims

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Application Information

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IPC IPC(8): H01F27/28H01B5/02H01B1/02C09D133/00C09D7/61C09D7/65
CPCH01F27/2847H01B5/02H01B1/02C09D133/00C09D7/61C09D7/65H01F2027/2861C08K2201/011C08K2003/2296C08L23/06C08L1/284C08K3/34C08K3/22C08K3/04
Inventor 夏代力谢荣光
Owner 深圳市斯比特电子有限公司