Novel tinned insulation winding wire
A technology of insulated windings and tin plating, applied in the direction of insulated cables, insulated conductors, transformers/inductor coils/windings/connections, etc., can solve problems that cannot meet safety, reliability, and stability, and reduce leakage inductance and distributed capacitance , Reduce material cost, high stability effect
Inactive Publication Date: 2013-12-04
丹阳利华电子有限公司
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Problems solved by technology
With the development trend of electronics, telecommunications, and power supply equipment, the temperature-resistant grades of Class E (120°C) and Class B (130°C) can no longer meet the requirements of safety, reliability, and stability, and the market is also urgently demanding higher heat-resistant grades Three-layer insulated winding wire
Method used
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Embodiment Construction
[0009] like figure 1 As shown, a new type of tin-plated insulated winding wire includes a copper conductor 1, a tin-plated layer 2, two layers of polyphenylene sulfide insulation layer 3, and a polyamide resin layer 4. The tin-plated layer 2 is plated on the copper conductor 1 On the outside, the two layers of polyphenylene sulfide insulating layers 3 are extruded on the outside of the tin-plated layer 2 in sequence, and the polyamide resin layer 4 is extruded on the outside of the two layers of polyphenylene sulfide insulating layers 3 .
[0010] Use a φ3mm copper rod to be thinned by a wire drawing machine, then annealed and tinned, and then two layers of polyphenylene sulfide insulating layer 3 and polyamide resin insulating layer 4 are extruded on the outside of the tinned copper conductor through a 30-type three-head extruder.
[0011] The properties of a new type of tinned insulated winding wire are:
[0012] (1) Production specification range: φ0.20~1.00mm;
[0013] (...
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Abstract
A novel tinned insulation winding wire is formed by a copper conductor, a tin coating, two polyphenylene sulfide insulating layers and a polyamide resin layer. The novel tinned insulation winding wire is characterized in that the copper conductor is plated with the tin coating, the two polyphenylene sulfide insulating layers wrap the tin coating in a squeezing mode in sequence, and the polyamide resin layer wraps the two polyphenylene sulfide insulating layers. The temperature classification of the novel tinned insulation winding wire reaches an F level (155 DEG C). Transformers and high frequency winding coils adopting the novel tinned insulation winding wire are safe, reliable and high in stability. Meanwhile, due to the fact that an interlayer insulating layer and an inner framework baffle are removed, a primary winding and a secondary winding are made to be coupled tightly, the transformers can be reduced by one second in size and one third in weight, material expense and processing expense can be reduced, leakage inductance and distributed capacitance are reduced remarkably, and the high frequency performance and the anti-interference performance of the transformers are improved remarkably.
Description
technical field [0001] The invention belongs to the technical field of three-layer insulated winding wire, which is applied to transformers and high-frequency winding coils whose safety standards meet UL1950 and IEC60950, and in particular relates to a novel tinned insulated winding wire. Background technique [0002] The three-layer insulated winding wire currently used on transformers is composed of copper conductors, two layers of polyester insulation and outer polyamide insulation. ℃). With the development trend of electronics, telecommunications, and power supply equipment, the temperature-resistant grades of Class E (120°C) and Class B (130°C) can no longer meet the requirements of safety, reliability, and stability, and the market is also urgently demanding higher heat-resistant grades Triple-layer insulated winding wire. Contents of the invention [0003] The purpose of the present invention is to provide a novel tin-plated insulated winding wire with a higher he...
Claims
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IPC IPC(8): H01B7/00H01B7/02H01B7/29H01F27/32
Inventor 汪亚英朱建华方澄秋
Owner 丹阳利华电子有限公司