High-temperature-resistant enameled wire

Abstract

The utility model discloses a high-temperature-resistant enameled wire, and particularly relates to the technical field of enameled wires, the high-temperature-resistant enameled wire comprises an enameled wire main body, the enameled wire main body comprises an inner core, and the outer wall of the inner core is coated with an insulating layer, a first high-temperature-resistant layer, a reinforcing layer, a second high-temperature-resistant layer and a wear-resistant layer which are sequentially distributed from inside to outside. The first high-temperature-resistant layer and the second high-temperature-resistant layer are polyurethane sheaths, the two polyurethane sheaths are fixedly arranged on the outer wall of the insulating layer and the outer wall of the reinforcing layer in a sleeving mode respectively, and a plurality of annular cavities are formed in the two polyurethane sheaths. According to the utility model, the two polyurethane sheaths are sleeved on the outer wall of the inner core, and polyurethane has good heat insulation and sound insulation performance, so that the high temperature resistance effect of the inner core can be improved, cold air can be conveyed into the annular cavity for cooling, the high temperature resistance of the enameled wire main body is improved, and when the enameled wire main body is impacted, the service life of the enameled wire main body is prolonged. And the rubber convex blocks can play a buffering role through extrusion, so that the impact resistance of the enameled wire main body can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of enameled wires, more specifically to high temperature resistant enameled wires. Background Art

[0002] Enameled wire is a main type of winding wire, consisting of a conductor and an insulating layer. The bare wire is annealed and softened, then painted and baked multiple times. However, it is not easy to produce products that meet both standard requirements and customer requirements. It is affected by factors such as raw material quality, process parameters, production equipment, and environment. Therefore, the quality characteristics of various enameled wires are different, but they all have four major properties: mechanical properties, chemical properties, electrical properties, and thermal properties.

[0003] At present, in order to protect the connecting parts of the enameled wire, a high-temperature resistant enameled wire is disclosed with the prior art publication number CN217656127U. The utility model squeezes the second airbag through a movable ring so that the air inside the second airbag enters the first airbag through the air groove, so that the first airbag expands and fits tightly against the outside of the conductive block. A primary seal is performed through a threaded seal, and then a secondary seal is performed through the first airbag to prevent foreign matter from entering the contact position between the conductive block and the slot.

[0004] However, the above-mentioned prior art still has the following problems when used: the heat resistance is achieved by setting a heat-resistant layer, but the heat-resistant effect is low, which will further affect the inner core by the high temperature. Based on this, the utility model provides an enameled wire with strong high temperature resistance. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a high-temperature resistant enameled wire, which has a high-temperature resistance effect through two polyurethane sheaths on the outside of the inner core, and at the same time, cold air is transported into the annular cavity for cooling, thereby improving the high-temperature resistance of the enameled wire body, and when the enameled wire body is hit, the extrusion of the rubber protrusion can play a buffering role, thereby improving the impact resistance of the enameled wire body, so as to solve the problems arising from the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: high temperature resistant enameled wire, including an enameled wire body, the enameled wire body including an inner core, the outer wall of the inner core is covered with an insulating layer, a first high temperature resistant layer, a reinforcement layer, a second high temperature resistant layer and a wear-resistant layer distributed in sequence from the inside to the outside, the first high temperature resistant layer and the second high temperature resistant layer are both polyurethane sheaths, the two polyurethane sheaths are fixed on the outer walls of the insulating layer and the reinforcement layer respectively, a plurality of annular cavities are opened inside the two polyurethane sheaths, a connecting hole is opened between two adjacent annular cavities, the connecting hole is connected with the annular cavity, and a plurality of symmetrically distributed rubber protrusions are fixed on the inner wall of each annular cavity to improve the impact resistance of the inner core.

[0007] In a preferred embodiment, the wear-resistant layer is a nitrile rubber sleeve, which is fixed on the outer wall of the polyurethane sheath. Nitrile rubber is wear-resistant, high-temperature resistant and oil-resistant, so the wear resistance and high-temperature resistance of the enameled wire body can be improved.

[0008] In a preferred embodiment, a plurality of grooves are provided on the outer wall surface of the nitrile rubber sleeve, a mesh screen is fixed in each groove, and an insect repellent medicine bag is stored between the mesh screen and the groove. The insect repellent medicine bag can play an insect repellent effect and prevent insects from biting the nitrile rubber sleeve.

[0009] In a preferred embodiment, the insulating layer is a fiber sleeve, which is fixedly sleeved on the outer wall of the inner core. The fiber sleeve is woven together by a plurality of transverse fiber filaments and a plurality of vertical fiber filaments, so that the production of the fiber sleeve is convenient.

[0010] In a preferred embodiment, each transverse fiber filament is a carbon fiber filament with high strength, which is used to improve the strength of the fiber sleeve, and each vertical fiber filament is a polyester filament with high elasticity and high toughness, which is used to improve the elasticity and toughness of the fiber sleeve.

[0011] In a preferred embodiment, the outer wall of each carbon fiber yarn and each polyester yarn is coated with insulating paint, which is a coating with excellent electrical insulation properties and can greatly improve the insulation effect of the carbon fiber yarn and the polyester yarn.

[0012] In a preferred embodiment, the reinforcement layer is a steel wire mesh, and the steel wire mesh is fixedly sleeved between two polyurethane sheaths to improve the strength of the enameled wire body.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model provides two polyurethane sheaths on the outer wall of the inner core. The polyurethane has good heat insulation and sound insulation properties, so the high temperature resistance of the inner core can be improved. At the same time, cold air can be transported into the annular cavity for cooling, thereby improving the high temperature resistance of the enameled wire body. When the enameled wire body is hit, the rubber convex block can be squeezed to play a buffering role, thereby improving the impact resistance of the enameled wire body.

[0015] 2. By using nitrile rubber sleeve as the wear-resistant layer, nitrile rubber has wear resistance, high temperature resistance and oil resistance, so the wear resistance and high temperature resistance of the enameled wire body can be improved. Insect repellent bags are placed in multiple grooves for insect prevention, so as to extend the service life of the nitrile rubber sleeve. The fiber sleeve woven with carbon fiber yarn and polyester yarn has high strength, high elasticity and high toughness, so the strength, elasticity and toughness of the enameled wire body can be improved, and the strength of the enameled wire body can be further improved with the help of steel wire mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 This is a cross-sectional view of the first high temperature resistant layer of the utility model;

[0019] Figure 4 It is a schematic diagram of the wear-resistant layer of the utility model;

[0020] Figure 5 This is a structural diagram of the insulation layer of the utility model.

[0021] The reference numerals are: 1, enameled wire body; 2, inner core; 3, insulating layer; 4, first high temperature resistant layer; 5, reinforcement layer; 6, second high temperature resistant layer; 7, wear-resistant layer; 8, polyurethane sheath; 9, annular cavity; 10, connecting hole; 11, rubber bump;

[0022] 301, transverse fiber filaments; 302, vertical fiber filaments;

[0023] 701. groove; 702. mesh screen; 703. insect repellent bag. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Refer to the instruction manual Figure 1-5 The utility model provides a high-temperature resistant enameled wire, including an enameled wire body 1, the enameled wire body 1 includes an inner core 2, the outer wall of the inner core 2 is covered with an insulating layer 3, a first high-temperature resistant layer 4, a reinforcement layer 5, a second high-temperature resistant layer 6 and a wear-resistant layer 7 which are distributed from the inside to the outside in sequence, the first high-temperature resistant layer 4 and the second high-temperature resistant layer 6 are both polyurethane sheaths 8, and the two polyurethane sheaths 8 are respectively fixed on the outer walls of the insulating layer 3 and the reinforcement layer 5, and a plurality of annular cavities 9 are opened inside the two polyurethane sheaths 8, and a connecting hole 10 is opened between two adjacent annular cavities 9, and the connecting hole 10 is connected with the annular cavity 9, and a plurality of symmetrically distributed rubber protrusions 11 are fixed on the inner wall of each annular cavity 9 to improve the impact resistance of the inner core 2.

[0026] The high temperature resistance is improved by arranging the first high temperature resistant layer 4 and the second high temperature resistant layer 6 on the outside of the inner core 2. The first high temperature resistant layer 4 and the second high temperature resistant layer 6 are both polyurethane sheaths 8. Polyurethane has good heat insulation, sound insulation and shock resistance, so the high temperature resistance of the enameled wire body 1 can be improved. At the same time, a plurality of annular cavities 9 are opened inside the two polyurethane sheaths 8, and a connecting hole 10 is opened between two adjacent annular cavities 9. After the enameled wire body 1 is laid, the air pipe can be connected to the annular cavity 9, and cold air can be transported into the annular cavity 9 for cooling, so as to improve the high temperature resistance of the enameled wire body 1, and a plurality of rubber protrusions 11 are arranged inside each annular cavity 9. When the enameled wire body 1 is hit, the rubber protrusions 11 are squeezed to generate a reaction force, so as to play a buffering role and improve the impact resistance of the enameled wire body 1.

[0027] Refer to the instruction manual Figure 1-5 The wear-resistant layer 7 is a nitrile rubber sleeve, which is fixedly sleeved on the outer wall of the polyurethane sheath 8 to improve the wear resistance of the enameled wire body 1. A plurality of grooves 701 are provided on the outer wall surface of the nitrile rubber sleeve, and a mesh screen 702 is fixedly provided in each groove 701. An insect repellent bag 703 is stored between the mesh screen 702 and the groove 701. The insect repellent bag 703 can play an insect repellent effect and prevent insects from biting the nitrile rubber sleeve;

[0028] And, specifically, the insulating layer 3 is a fiber sleeve, the fiber sleeve is fixedly sleeved on the outer wall of the inner core 2, the fiber sleeve is woven together by a plurality of transverse fiber filaments 301 and a plurality of vertical fiber filaments 302, each transverse fiber filament 301 is a carbon fiber filament, which is used to improve the strength of the fiber sleeve, each vertical fiber filament 302 is a polyester filament, which is used to improve the elasticity and toughness of the fiber sleeve, and each carbon fiber filament and each polyester filament outer wall are coated with insulating paint, which is a coating with excellent electrical insulation, and improves the insulation effect of the carbon fiber yarn and the polyester filament;

[0029] Furthermore, the reinforcement layer 5 is a steel mesh, which is fixedly sleeved between two polyurethane sheaths 8 to improve the strength of the enameled wire body 1 .

[0030] A nitrile rubber sleeve is used as the wear-resistant layer 7. The nitrile rubber is wear-resistant, high-temperature resistant and oil-resistant, so the wear resistance and high-temperature resistance of the enameled wire body 1 can be improved. A plurality of grooves 701 are opened on the outer wall of the nitrile rubber sleeve, and an insect repellent bag 703 is placed in the groove 701 to prevent insects. A plurality of transverse fiber filaments 301 and a plurality of vertical fiber filaments 302 are woven into a fiber sleeve. Each transverse fiber filament 301 is made of carbon fiber filament, which has high strength, so the strength of the fiber sleeve can be improved. Each vertical fiber filament 302 is made of polyester filament, which has high elasticity and high toughness, so the elasticity and toughness of the fiber sleeve can be improved, thereby improving the strength, elasticity and toughness of the enameled wire body 1. A steel wire mesh is arranged between the two polyurethane sheaths 8, and the strength of the enameled wire body 1 can be further improved with the help of the steel wire mesh.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A high temperature resistant enameled wire, comprising an enameled wire body (1), Features: The enameled wire body (1) comprises an inner core (2), the outer wall of the inner core (2) is covered with an insulating layer (3), a first high temperature resistant layer (4), a reinforcement layer (5), a second high temperature resistant layer (6) and a wear-resistant layer (7) which are sequentially distributed from the inside to the outside, the first high temperature resistant layer (4) and the second high temperature resistant layer (6) are both polyurethane sheaths (8), and the two polyurethane sheaths (8) are fixedly sleeved on the outer walls of the insulating layer (3) and the reinforcement layer (5), respectively; A plurality of annular cavities (9) are provided inside the two polyurethane sheaths (8), a connecting hole (10) is provided between two adjacent annular cavities (9), the connecting hole (10) is connected to the annular cavities (9), and a plurality of symmetrically distributed rubber protrusions (11) are fixedly provided on the inner wall of each annular cavity (9) to improve the impact resistance of the inner core (2).

2. The high temperature resistant enameled wire according to claim 1, Features: The wear-resistant layer (7) is a nitrile rubber sleeve, which is fixedly sleeved on the outer wall of the polyurethane sheath (8) and is used to improve the wear resistance of the enameled wire body (1).

3. The high temperature resistant enameled wire according to claim 2, Features: The outer wall surface of the nitrile rubber sleeve is provided with a plurality of grooves (701), each groove (701) is fixedly provided with a mesh screen (702), and an insect repellent drug bag (703) is stored between the mesh screen (702) and the groove (701).

4. The high temperature resistant enameled wire according to claim 1, Features: The insulating layer (3) is a fiber sleeve, which is fixedly sleeved on the outer wall of the inner core (2), and the fiber sleeve is woven together by a plurality of transverse fiber filaments (301) and a plurality of vertical fiber filaments (302).

5. The high temperature resistant enameled wire according to claim 4, Features: Each transverse fiber filament (301) is a carbon fiber filament, which is used to improve the strength of the fiber sleeve, and each vertical fiber filament (302) is a polyester filament, which is used to improve the elasticity and toughness of the fiber sleeve.

6. The high temperature resistant enameled wire according to claim 5, Features: The outer wall of each carbon fiber yarn and each polyester yarn is coated with insulating paint to improve the insulation effect of the carbon fiber yarn and the polyester yarn.

7. The high temperature resistant enameled wire according to claim 1, Features: The reinforcement layer (5) is a steel wire mesh, which is fixedly sleeved between two polyurethane sheaths (8) and is used to improve the strength of the enameled wire body (1).

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