Double-coating enameled wire for high-voltage relay
By introducing specific structures and materials into the enameled wires used in high-voltage relays, the problems of low tensile strength and poor heat insulation have been solved, achieving a significant improvement in high strength, wear resistance, and protective properties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-03
AI Technical Summary
Existing high-voltage relays use double-coated enameled wires with low tensile strength, prone to breakage, poor heat insulation, and are affected by the heat of the high-voltage relay.
It adopts a structure consisting of a metal wire core, a wire mesh wrapping layer, a filler layer, and a coating. The wire mesh wrapping layer includes titanium alloy fiber wire mesh and glass fiber wire mesh. The coating includes a corona-resistant coating and a waterproof coating. The coating materials are metal oxide polyesterimide varnish and polytetrafluoroethylene material.
It improves the tensile strength of the enameled wire, prevents wire breakage, enhances heat insulation and protection, and makes it wear-resistant, suitable for the operating environment of high-voltage relays.
Smart Images
Figure CN223967058U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of enameled wire technology, specifically to a double-coated enameled wire for high-voltage relays. Background Technology
[0002] Enameled wire is a major type of winding wire, consisting of a conductor and an insulation layer. The bare wire is annealed and softened, then coated with enamel multiple times and baked. However, producing products that meet both standard requirements and customer specifications is not easy, as it is affected by factors such as raw material quality, process parameters, production equipment, and the environment. Double-coated enameled wire refers to wire with two coatings on its outer surface, improving its performance and is widely used in the coils of high-voltage relays.
[0003] The existing double-coated enameled wire used in high-voltage relays has low tensile strength, is prone to breakage, and has poor heat insulation, making it susceptible to the effects of heat from the high-voltage relay. Utility Model Content
[0004] To address the problems in the existing technology, this utility model provides a double-coated enameled wire for high-voltage relays. The double-coated enameled wire for high-voltage relays has high tensile strength, is not easy to break, is durable, and has a significant heat insulation effect, unaffected by the heat of the high-voltage relay.
[0005] The technical solution adopted by this utility model to solve its technical problem is a double-coated enameled wire for high-voltage relays, including an enameled wire body. The enameled wire body is composed of a metal wire core, a wire mesh wrapping layer, a filling layer, a corona-resistant coating, and a waterproof coating. The outer surface of the metal wire core is provided with a wire mesh wrapping layer, the outer surface of the wire mesh wrapping layer is provided with a corona-resistant coating, and a filling layer is provided between the corona-resistant coating and the wire mesh wrapping layer.
[0006] The wire mesh wrapping layer includes a first titanium alloy fiber wire mesh, a second titanium alloy fiber wire mesh, and a glass fiber wire mesh. The outer surface of the first titanium alloy fiber wire mesh is provided with the second titanium alloy fiber wire mesh, and a glass fiber wire mesh is provided between the first titanium alloy fiber wire mesh and the second titanium alloy fiber wire mesh.
[0007] By adopting the above technical solution, the double-coated enameled wire used in the coil of the high-voltage relay has high tensile strength, is not easy to break, is durable, and has a significant heat insulation effect, and is not affected by the heat of the high-voltage relay.
[0008] Specifically, the outer layer of the corona-resistant coating is provided with a waterproof coating, which is specifically made of polytetrafluoroethylene material.
[0009] By adopting the above technical solution, a protective layer is formed on the surface of the double-coated enameled wire, which is wear-resistant and waterproof, greatly improving the protection in the use of high-voltage relays.
[0010] Specifically, the corona-resistant coating is a metal oxide polyesterimide varnish film.
[0011] Specifically, the filler layer is made of PU material.
[0012] Specifically, the metal core is made of copper.
[0013] By adopting the above technical solutions, copper materials have high electrical conductivity, are easy to process and produce, have good thermal stability, are corrosion resistant, and are durable.
[0014] The beneficial effects of this utility model are:
[0015] (1) The double-coated enameled wire for high voltage relay described in this utility model utilizes the first titanium alloy fiber mesh and the second titanium alloy fiber mesh of the wire mesh wrapping layer to make the double-coated enameled wire have high tensile strength, not easy to break wire, and durable when used in the coil of high voltage relay. The glass fiber mesh of the wire mesh wrapping layer improves the heat resistance of the double-coated enameled wire, and the heat insulation effect is significant and is not affected by the heat of high voltage relay.
[0016] (2) The double-coated enameled wire for high voltage relay described in this utility model utilizes a corona-resistant coating, specifically a metal oxide polyesterimide varnish film, which effectively provides corona resistance and high stability. The waterproof coating is specifically made of polytetrafluoroethylene material, forming a protective layer on the surface of the double-coated enameled wire, which is wear-resistant and has outstanding waterproof effect, greatly improving the protection in the use of high voltage relay. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a cross-sectional view of the present invention;
[0020] Figure 3 This is a schematic diagram of the wire mesh wrapping layer structure of this utility model.
[0021] In the figure: 1. Enamelled wire body; 2. Metal wire core; 3. Wire mesh wrapping layer; 4. Filling layer; 5. Corona-resistant coating; 6. Waterproof coating; 7. Fiberglass wire mesh; 8. First titanium alloy fiber wire mesh; 9. Second titanium alloy fiber wire mesh. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] Double-coated enameled wire is used in the coils of high-voltage relays to provide high tensile strength, resistance to breakage, durability, and significant heat insulation, unaffected by the heat of the high-voltage relay. Figure 1-3 As shown, the present invention discloses a double-coated enameled wire for a high-voltage relay, comprising an enameled wire body 1, wherein the enameled wire body 1 is composed of a metal wire core 2, a wire mesh wrapping layer 3, a filling layer 4, a corona-resistant coating 5, and a waterproof coating 6. The outer surface of the metal wire core 2 is provided with a wire mesh wrapping layer 3, the outer surface of the wire mesh wrapping layer 3 is provided with a corona-resistant coating 5, and a filling layer 4 is provided between the corona-resistant coating 5 and the wire mesh wrapping layer 3.
[0024] The mesh wrapping layer 3 includes a first titanium alloy fiber mesh 8, a second titanium alloy fiber mesh 9, and a glass fiber mesh 7. The outer surface of the first titanium alloy fiber mesh 8 is provided with the second titanium alloy fiber mesh 9, and the glass fiber mesh 7 is provided between the first titanium alloy fiber mesh 8 and the second titanium alloy fiber mesh 9.
[0025] When in use, the double-coated enameled wire used in the coil of the high-voltage relay has high tensile strength, is not easy to break, is durable, and has a significant heat insulation effect, so it is not affected by the heat of the high-voltage relay.
[0026] For example, such as Figure 1 As shown, the present invention also includes a waterproof coating 6 on the outer surface of the corona-resistant coating 5, and the waterproof coating 6 is specifically made of polytetrafluoroethylene material.
[0027] During use, a protective layer is formed on the surface of the double-coated enameled wire, which is wear-resistant and waterproof, greatly improving the protection in the use of high-voltage relays.
[0028] For example, such as Figure 1 As shown, the present invention also includes, specifically, a metal oxide polyesterimide varnish film, wherein the corona-resistant coating 5 is a metal oxide polyesterimide varnish film.
[0029] When in use, it effectively resists corona discharge and has high stability.
[0030] For example, such as Figure 1 As shown, the present invention also includes a filling layer 4 specifically made of PU material.
[0031] When in use, PU material is easy to manufacture and process, resistant to high temperatures and corrosion, not easily damaged, and durable.
[0032] For example, such as Figure 1 As shown, the present invention also includes the fact that the metal core 2 is specifically made of copper.
[0033] When in use, copper has high electrical conductivity, is easy to process and produce, has good thermal stability, is corrosion resistant, and is durable.
[0034] In use, this utility model utilizes the first titanium alloy fiber mesh 8 and the second titanium alloy fiber mesh 9 of the wire mesh wrapping layer 3 to make the double-coated enameled wire used in the coil of the high-voltage relay have high tensile strength, are not easy to break, and are durable.
[0035] The glass fiber mesh 7 of the mesh wrapping layer 3 improves the heat resistance of the double-coated enameled wire, with a significant heat insulation effect, and is not affected by the heat of the high voltage relay. The corona-resistant coating 5, specifically a metal oxide polyesterimide varnish film, effectively provides corona resistance and has high stability.
[0036] The waterproof coating 6 is made of polytetrafluoroethylene, forming a protective layer on the surface of the double-coated enameled wire. It is wear-resistant and has excellent waterproof effect, greatly improving the protection in the use of high-voltage relays.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A double-coated enameled wire for a high-voltage relay, characterized in that, The device includes an enameled wire body (1), which is composed of a metal wire core (2), a wire mesh wrapping layer (3), a filling layer (4), a corona-resistant coating (5), and a waterproof coating (6). The outer surface of the metal wire core (2) is provided with a wire mesh wrapping layer (3), the outer surface of the wire mesh wrapping layer (3) is provided with a corona-resistant coating (5), and a filling layer (4) is provided between the corona-resistant coating (5) and the wire mesh wrapping layer (3). The mesh wrapping layer (3) includes a first titanium alloy fiber mesh (8), a second titanium alloy fiber mesh (9) and a glass fiber mesh (7). The outer surface of the first titanium alloy fiber mesh (8) is provided with the second titanium alloy fiber mesh (9), and a glass fiber mesh (7) is provided between the first titanium alloy fiber mesh (8) and the second titanium alloy fiber mesh (9).
2. The double-coated enameled wire for a high-voltage relay according to claim 1, characterized in that, The outer surface of the corona-resistant coating (5) is provided with a waterproof coating (6), and the waterproof coating (6) is specifically made of polytetrafluoroethylene material.
3. The double-coated enameled wire for a high-voltage relay according to claim 1, characterized in that, The corona-resistant coating (5) is specifically a metal oxide polyesterimide varnish.
4. The double-coated enameled wire for a high-voltage relay according to claim 1, characterized in that, The filling layer (4) is specifically made of PU material.
5. The double-coated enameled wire for a high-voltage relay according to claim 1, characterized in that, The metal core (2) is specifically made of copper.