Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Insulated wire

A technology for insulating wires and resins, which is applied to insulated cables, insulators, insulated conductors, etc., and can solve problems such as damage and deterioration of insulation coating.

Inactive Publication Date: 2011-10-05
PROTERIAL LTD
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to these, when a higher voltage such as a converter surge voltage is applied to the coil in the electrical equipment, there is a problem that the insulation coating may be deteriorated or damaged due to partial discharge.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Insulated wire
  • Insulated wire
  • Insulated wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited thereto. In addition, the composition of the resin composition constituting the insulating coating of Examples 1 to 11 is shown in Table 1 described later, and the composition of the resin composition constituting the insulating coating of Comparative Examples 1 to 3 is shown in Table 2 described below.

[0035] Preparation of Examples 1-11 and Comparative Examples 1-3

[0036] Use a copper wire with an outer diameter of 1.25mm as a conductor, use an extruder to extrude and coat the resin composition shown in Table 1 and Table 2 on the outer layer of the copper wire, and make the following: figure 1 Insulated wire of the shape shown. The temperature during the extrusion coating was about 300° C., and the thickness of the insulating coating was set to 150 μm. In Examples 3 to 11 and Comparative Examples 2 to 3, heat treatment was performed by ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melting pointaaaaaaaaaa
melting pointaaaaaaaaaa
relative permittivityaaaaaaaaaa
Login to View More

Abstract

An objective of the present invention is to provide an insulated wire having a higher partial discharge inception voltage than conventional insulated wires without sacrificing the adhesion between the wire conductor and the insulating coating. There is provided an insulated wire including a wire conductor and an insulation coating formed on the wire conductor by extrusion coating a resin composition. The resin composition is a mixture of a polyphenylene sulfide-based resin (A) and a polyamide-based resin (B), in which a ratio of parts by mass of the resin (B) to that of the resin (A), i.e. (B) / (A), is not less than 5 / 95 and not more than 30 / 70.

Description

technical field [0001] The present invention relates to an insulated wire used in coils of electrical equipment such as a rotating electric machine and a transformer, and more particularly to an insulated wire formed with an insulating coating (including an extruded coating). Background technique [0002] Insulated wires (insulated wires covered with enamel) used in coils of electrical equipment such as rotating machines and transformers are generally constructed so that a single or multiple layers of insulating coating are formed on the outer circumference of the conductor, in which the The conductor is formed into a cross-sectional shape (for example, circular or rectangular) conforming to the purpose and shape of the coil. The method of forming the insulating coating includes a method of applying an insulating paint obtained by dissolving a resin in an organic solvent on the conductor and baking it, and a method of extruding a pre-prepared resin composition onto the condu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/04H01B7/02H01B3/30H01B13/14
CPCH01B3/301H01B3/305
Inventor 山崎孝则渡边清安部淳一菊池英行日野大辅
Owner PROTERIAL LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com