Enameled wire with high adhesive force

Abstract

The utility model discloses a high-adhesion enameled wire, which comprises a sleeve, a sleeve sleeved outside the sleeve, a wire core arranged inside the sleeve, an insulating sleeve fixedly connected outside the wire core, a buffer sleeve fixedly connected outside the insulating sleeve, and a damping sleeve fixedly connected outside the buffer sleeve. A containing groove is formed in the outer circumferential wall of the insulation sleeve, a placing block is fixedly connected to the position, corresponding to the containing groove, of the inner side wall of the buffering sleeve, the placing block is made of a rubber material, a silica gel block is fixedly connected to the inner side wall of the damping sleeve, and an empty groove is formed between the insulation sleeve and the buffering sleeve. According to the utility model, the insulating sleeve is internally provided with the heat dissipation holes, and the heat dissipation holes are communicated with the interior of the empty slot, so that compared with the existing high-adhesion enameled wire, the enameled wire provided by the utility model can greatly prolong the service life through the design.

Description

Technical Field

[0001] This utility model belongs to the field of enameled wire technology, specifically relating to a high-adhesion enameled wire. Background Technology

[0002] Enameled wire is a type of conductor formed by coating a metal conductor (such as copper, aluminum, or alloy) with multiple layers of insulating varnish and curing it at high temperature. It has both conductivity and insulation properties and is the core material for realizing electromagnetic energy conversion in motors, electrical appliances, and electronic equipment. Its name comes from the fact that the insulation layer is mainly composed of varnish film, and it is often called "enameled wire" or "winding wire".

[0003] During use, enameled wires inevitably experience radial compression, twisting, and circumferential bending forces. If the metal core layer does not have good buffering and absorption capacity and space, prolonged compression, twisting, and bending can easily damage the outer surface of the enameled wire and cause the internal layers to fall off, thereby further affecting the strength of the internal metal core layer and even causing it to break, ultimately shortening the service life of the enameled wire. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a high-adhesion enameled wire, which solves the problem that the core wire breaks and falls off due to the squeezing pressure when the enameled wire is wound.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a high-adhesion enameled wire, which includes a sleeve, a tube sleeved on the outside of the sleeve, a wire core inside the tube, an insulating sleeve fixedly connected to the outside of the wire core, a buffer sleeve fixedly connected to the outside of the insulating sleeve, a shock-absorbing sleeve fixedly connected to the outside of the buffer sleeve, and the inside of the tube fixedly connected to the shock-absorbing sleeve. A receiving groove is formed on the outer circumferential wall of the insulating sleeve, and a placement block is fixedly connected to the inner side wall of the buffer sleeve at a position corresponding to the receiving groove. The placement block is made of rubber.

[0008] When using the enameled wire of this technical solution, the extrusion pressure first impacts the shock-absorbing sleeve. At this time, the silicone block deforms, and its silicone material absorbs the extrusion pressure and buffers part of the pressure. Then the buffer sleeve is subjected to extrusion pressure and is squeezed towards the insulating sleeve. Subsequently, the placement block will buffer inside the receiving groove 7 to eliminate the extrusion pressure.

[0009] Preferably, a silicone block is fixedly connected to the inner wall of the shock-absorbing sleeve, a groove is formed between the insulating sleeve and the buffer sleeve, and heat dissipation holes are opened inside the insulating sleeve, which are interconnected with the inside of the groove.

[0010] Furthermore, the wire core is composed of a wear-resistant layer, a reinforcing layer, an adhesive varnish layer, and an epoxy resin varnish layer. The wear-resistant layer is located on the outermost layer of the wire core, the reinforcing layer is located on the inner side of the wear-resistant layer, the adhesive varnish layer is located inside the reinforcing layer, and the epoxy resin varnish layer is located inside the adhesive varnish layer.

[0011] Furthermore, the wear-resistant layer, the reinforcing layer, the adhesive paint layer, and the epoxy resin paint layer are laminated together, with the wear-resistant layer composed of polyamide-imide.

[0012] Furthermore, the reinforcing layer is composed of multiple sets of glass fibers, which form a mesh.

[0013] Furthermore, multiple sets of protrusions are provided on both sides of the adhesive paint layer, and a groove is provided on the side of the reinforcing layer that is close to the epoxy resin paint layer and at the position corresponding to the protrusions.

[0014] Furthermore, the epoxy resin coating consists of a topcoat layer and an outer coating layer. The topcoat layer is coated with an antistatic liquid, and the outer coating layer is a water-based epoxy material.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] The enameled wire of this utility model has a buffer sleeve design. First, the extrusion force impacts the shock-absorbing sleeve. At this time, the silicone block deforms and its silicone material absorbs the extrusion force, buffering part of the pressure. Then, the buffer sleeve is subjected to extrusion force and is squeezed towards the insulating sleeve. Subsequently, the placement block is buffered inside the receiving groove 7 to eliminate the extrusion force. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the device of this utility model;

[0019] Figure 2 This is a schematic diagram of the sleeve structure of the device of this utility model;

[0020] Figure 3 This is a schematic diagram of the insulating sleeve structure of the device of this utility model;

[0021] Figure 4 This is a schematic diagram of the buffer sleeve structure of the device of this utility model;

[0022] Figure 5 This is a schematic diagram of the shock-absorbing sleeve structure of the device of this utility model;

[0023] Figure 6 This is a schematic diagram of the internal structure of the wire core of the device of this utility model;

[0024] The markings in the attached diagram are as follows: 1. Sleeve; 2. Tube; 3. Core wire; 301. Wear-resistant layer; 302. Reinforcing layer; 303. Adhesive paint layer; 304. Epoxy resin paint layer; 4. Insulating sleeve; 5. Buffer sleeve; 6. Shock-absorbing sleeve; 7. Receiving groove; 8. Placement block; 9. Silicone block; 10. Empty groove; 11. Heat dissipation hole. Detailed Implementation

[0025] This specific embodiment is a high-adhesion enameled wire, the structural schematic diagram of which is shown below. Figure 1-6 As shown, the enameled wire includes a sleeve 1, a tube 2 is fitted over the outside of the sleeve 1, a wire core 3 is installed inside the tube 2, an insulating sleeve 4 is fixedly connected to the outside of the wire core 3, a buffer sleeve 5 is fixedly connected to the outside of the insulating sleeve 4, a shock-absorbing sleeve 6 is fixedly connected to the outside of the buffer sleeve 5, and the shock-absorbing sleeve 6 is fixedly connected to the inside of the tube 2. A receiving groove 7 is opened on the outer circumferential wall of the insulating sleeve 4, and a placement block 8 is fixedly connected to the inner side wall of the buffer sleeve 5 at a position corresponding to the receiving groove 7. The placement block 8 is made of rubber. When the wire core 3 is needed, by pulling one end of the tube 2, the sleeve 1 is rotated, and then the tube 2 is wound around the desired position. The wire core 3 will be subjected to compressive force, thereby causing the buffer sleeve 5 and the shock-absorbing sleeve 6 to bend. The placement block 8 absorbs the compressive and torsional forces, thus protecting the wire core 3.

[0026] In this embodiment, a silicone block 9 is fixedly connected to the inner wall of the shock-absorbing sleeve 6. A groove 10 is formed between the insulating sleeve 4 and the buffer sleeve 5. A heat dissipation hole 11 is opened inside the insulating sleeve 4. The heat dissipation hole 11 and the interior of the groove 10 are interconnected. When the wire core 3 is in use, heat will be generated. At this time, it will be discharged through the heat dissipation hole 11, then enter the interior of the groove 10, and finally be discharged outside the sleeve 2 to complete the heat dissipation. After the sleeve 2 is squeezed, it will first impact the shock-absorbing sleeve 6. At this time, the silicone block 9 will deform. Its silicone material will absorb the extrusion force and buffer part of the pressure. Then the buffer sleeve 5 will be squeezed towards the insulating sleeve 4. Then the placement block 8 will buffer inside the receiving groove 7 to eliminate the extrusion force.

[0027] Secondly, in this embodiment, the core 3 is composed of a wear-resistant layer 301, a reinforcing layer 302, an adhesive varnish layer 303, and an epoxy resin varnish layer 304. The wear-resistant layer 301 is located on the outermost layer of the core 3, the reinforcing layer 302 is located on the inner side of the wear-resistant layer 301, the adhesive varnish layer 303 is located inside the reinforcing layer 302, and the epoxy resin varnish layer 304 is located inside the adhesive varnish layer 303. The wear-resistant layer 301, the reinforcing layer 302, the adhesive varnish layer 303, and the epoxy resin varnish layer 304 are pressed together. The wear-resistant layer 301 is composed of polyamide-imide. Polyamide-imide can work stably in high-temperature environments above 180°C for a long time, has excellent thermal stability, and does not experience significant weight loss or electrical performance degradation at high temperatures. It can also withstand mechanical stress and high-frequency vibration during the winding process, reducing the risk of cracking and possessing strong wear resistance, protecting the conductor of the core 3 from physical damage and extending its service life.

[0028] Furthermore, in this embodiment, the reinforcing layer 302 is composed of multiple sets of glass fibers, which form a mesh. The glass fiber mesh provides additional physical protection for the wire core 3 through its high warp and weft tensile strength, reducing the risk of conductor wear or breakage during winding, transportation or vibration, dispersing external impact stress, and avoiding insulation layer cracking caused by local stress concentration.

[0029] Furthermore, in this embodiment, multiple sets of protrusions are formed on both sides of the adhesive paint layer 303, and a groove is formed on the side of the reinforcing layer 302 that is close to the epoxy resin paint layer 304 and at the position corresponding to the protrusions. The epoxy resin paint layer 304 consists of a topcoat layer and an outer paint layer. The topcoat layer is coated with an antistatic liquid, and the outer paint layer is a water-based epoxy material. By having the protrusions of the adhesive paint layer 303 respectively adhere to the grooves in the epoxy resin paint layer 304 and the reinforcing layer 302, multiple contact points are increased, thereby improving adhesion.

[0030] When using the device of this technical solution, pull one end of the sleeve 2, which will then drive the sleeve 1 to rotate. The sleeve 2 is then wound around the desired position, and the wire core 3 will be subjected to compressive force. First, it impacts the shock-absorbing sleeve 6, at which point the silicone block 9 deforms. Its silicone material absorbs the compressive force, buffering some of the pressure. Then, the buffer sleeve 5 is subjected to compressive force, being pressed towards the insulating sleeve 4. Subsequently, the placement block 8 buffers the force within the receiving groove 7, eliminating the compressive force. Polyamide-imide can work stably in high-temperature environments above 180℃ for extended periods, exhibiting excellent thermal stability. It shows no significant weight loss or degradation of electrical performance at high temperatures and can withstand the winding process. The mechanical stress and high-frequency vibration in the wire core 3 are reduced, and the wire core 3 is characterized by strong wear resistance. The fiberglass mesh provides additional physical protection for the wire core 3 through its high tensile strength, reducing the risk of conductor wear or breakage during winding, transportation or vibration. It also disperses external impact stress and avoids insulation layer cracking caused by local stress concentration. The protrusions of the adhesive varnish layer 303 are respectively attached to the grooves in the epoxy resin varnish layer 304 and the reinforcing layer 302, increasing multiple contact points and improving adhesion. Compared with existing enameled wires, this utility model can improve the overall practicality of enameled wires through design.

[0031] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A high-adhesion enameled wire, the enameled wire comprising a sleeve (1), characterized in that: The sleeve (1) is fitted with a tube (2) on the outside. The tube (2) is fitted with a wire core (3) inside. An insulating sleeve (4) is fixedly connected to the outside of the wire core (3). A buffer sleeve (5) is fixedly connected to the outside of the insulating sleeve (4). A shock-absorbing sleeve (6) is fixedly connected to the outside of the buffer sleeve (5). The shock-absorbing sleeve (6) is fixedly connected to the inside of the tube (2). A receiving groove (7) is opened on the outer circumferential wall of the insulating sleeve (4). A placement block (8) is fixedly connected to the inner side wall of the buffer sleeve (5) at a position corresponding to the receiving groove (7). The placement block (8) is made of rubber.

2. The high-adhesion enameled wire according to claim 1, characterized in that, A silicone block (9) is fixedly connected to the inner wall of the shock-absorbing sleeve (6). A groove (10) is formed between the insulating sleeve (4) and the buffer sleeve (5). A heat dissipation hole (11) is opened inside the insulating sleeve (4). The heat dissipation hole (11) and the interior of the groove (10) are interconnected.

3. The high-adhesion enameled wire according to claim 1, characterized in that, The wire core (3) is composed of a wear-resistant layer (301), a reinforcing layer (302), an adhesive varnish layer (303), and an epoxy resin varnish layer (304). The wear-resistant layer (301) is located on the outermost layer of the wire core (3), the reinforcing layer (302) is located on the inner side of the wear-resistant layer (301), the adhesive varnish layer (303) is located inside the reinforcing layer (302), and the epoxy resin varnish layer (304) is located inside the adhesive varnish layer (303).

4. The high-adhesion enameled wire according to claim 3, characterized in that, The wear-resistant layer (301), the reinforcing layer (302), the adhesive paint layer (303) and the epoxy resin paint layer (304) are laminated together, and the wear-resistant layer (301) is composed of polyamide imide.

5. The high-adhesion enameled wire according to claim 3, characterized in that, The reinforcing layer (302) is composed of multiple sets of glass fibers, which form a mesh.

6. The high-adhesion enameled wire according to claim 3, characterized in that, Multiple sets of protrusions are provided on both sides of the adhesive paint layer (303), and a groove is provided on the side of the reinforcing layer (302) that is close to the epoxy resin paint layer (304) and at the position corresponding to the protrusions.

7. The high-adhesion enameled wire according to claim 3, characterized in that, The epoxy resin paint layer (304) consists of a topcoat layer and an outer paint layer. The topcoat layer is coated with an antistatic liquid, and the outer paint layer is a water-based epoxy material.

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