High-temperature-resistant motor connecting wire
By designing a multi-layer insulation structure and anti-detachment components, the mechanical stress problem of the motor connection wire insulation layer in high-temperature environments is solved, achieving stability of insulation performance and structural integrity at high temperatures, and improving the reliability and service life of the motor connection wire.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-03-13
AI Technical Summary
In high-temperature environments, the relative displacement between the conductors and insulation materials of motor connection wires due to their different coefficients of thermal expansion may cause cracks, damage, or delamination of the insulation layer, reducing its insulation performance.
It adopts a multi-layer structure design, including wire core, first insulation layer, wrapping layer, high temperature resistant layer, second insulation layer and protective sleeve, combined with anti-detachment components, and enhances insulation performance and structural stability through the combination of silicone rubber, polychloroprene, synthetic resin film and Teflon materials.
It maintains stable insulation performance in high-temperature environments, enhances structural integrity and electrical isolation, prevents mechanical damage, and improves the reliability and service life of the connection wires.
Smart Images

Figure CN223993162U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor connection wire technology, specifically to a high-temperature resistant motor connection wire. Background Technology
[0002] Motor connection wires are the leads that connect the motor to the external power source. They play a crucial role in connecting the motor to the power source during operation.
[0003] Existing devices have some drawbacks during use. For example, in high-temperature environments, the conductors and insulation materials in the motor connection wires will undergo thermal expansion. Due to the different coefficients of thermal expansion of the conductors and insulation materials, the relative displacement between them may cause mechanical stress on the insulation layer. This mechanical stress may cause cracks, damage, or delamination of the insulation layer, thereby reducing the insulation performance of the connection wires. Utility Model Content
[0004] The purpose of this invention is to provide a high-temperature resistant motor connection wire to solve the problem of reduced insulation performance of the connection wire under high-temperature environments.
[0005] This utility model provides the following technical solution: a high-temperature resistant motor connecting wire, comprising multiple wire cores and a wrapping layer, wherein a first insulation layer is sleeved on the outside of the multiple wire cores and the multiple wire cores are disposed within the wrapping layer, and insulating paper is filled between the multiple wire cores, a high-temperature resistant layer is sleeved on the outside of the wrapping layer, a second insulation layer is sleeved on the outside of the high-temperature resistant layer, a protective sleeve is sleeved on the outside of the second insulation layer, and an anti-detachment component for preventing the connecting wire from falling off is provided on the outside of the protective sleeve.
[0006] As a preferred embodiment of the above technical solution, the anti-detachment component includes a bearing fixedly sleeved on the outside of the protective sleeve, a fixed insert sleeve fixedly sleeved on the outer wall of the bearing, a fixed sleeve sleeved on the outside of the fixed insert sleeve, an internal thread on the outer wall of the fixed insert sleeve, an external thread adapted to the internal thread on the inner wall of the fixed sleeve, the fixed insert sleeve and the fixed sleeve being threadedly connected, and a plurality of mounting rods for connecting and fixing with the motor being fixedly anularly on the outer wall of the fixed sleeve.
[0007] As a preferred embodiment of the above technical solution, the first insulating layer is made of silicone rubber.
[0008] As a preferred embodiment of the above technical solution, the second insulating layer is made of polychloroprene.
[0009] As a preferred embodiment of the above technical solution, the wrapping layer is made of a synthetic resin film.
[0010] As a preferred embodiment of the above technical solution, the high-temperature resistant layer is made of Teflon.
[0011] As a preferred embodiment of the above technical solution, the protective sleeve is made of extruded, tensile- and tear-resistant ceramicized silicone rubber.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] In this invention, the first insulation layer provides initial electrical isolation, preventing direct contact between the wire cores and between the wire cores and the external environment, thus ensuring safety in use. The wrapping layer tightly wraps multiple wire cores together, enhancing the overall structural strength of the connecting wire and also aiding in heat dissipation and maintaining the relative stability of the wire cores. The insulating paper filling between the wire cores further improves insulation performance, which is particularly important during high-voltage or high-frequency signal transmission. The high-temperature resistant layer maintains structural integrity and electrical stability in high-temperature environments, which is crucial for applications in high-temperature working environments such as motors. The second insulation layer provides additional electrical isolation, further enhancing the safety of the connecting wire. Attached Figure Description
[0014] Figure 1 A first-view schematic diagram of the overall structure of a high-temperature resistant motor connection cable;
[0015] Figure 2 This is a schematic diagram of the exploded structure of a high-temperature resistant motor connection wire.
[0016] Figure 3 A schematic diagram of the overall structure of a high-temperature resistant motor connection wire from a second perspective;
[0017] Figure 4 This is a partial cross-sectional view of a high-temperature resistant motor connection wire.
[0018] In the diagram: 1. Core wire; 11. Wrapping layer; 12. First insulation layer; 13. Insulating paper; 14. High temperature resistant layer; 15. Second insulation layer; 16. Protective sleeve; 2. Anti-detachment component; 21. Bearing; 22. Fixing sleeve; 221. Internal thread; 23. Fixing sleeve; 231. External thread; 24. Mounting rod. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0020] Example
[0021] like Figures 1-4As shown, this utility model provides a technical solution: a high-temperature resistant motor connecting wire, including multiple wire cores 1 and a wrapping layer 11. A first insulation layer 12 is sleeved on the outside of the multiple wire cores 1, and the multiple wire cores 1 are disposed within the wrapping layer 11. Insulating paper 13 is filled between the multiple wire cores 1. A high-temperature resistant layer 14 is sleeved on the outside of the wrapping layer 11, a second insulation layer 15 is sleeved on the outside of the high-temperature resistant layer 14, and a protective sleeve 16 is sleeved on the outside of the second insulation layer 15. An anti-detachment component 2 is provided on the outside of the protective sleeve 16 to prevent the connecting wire from falling off. In actual use, the multiple wire cores 1 serve as the main body for transmitting current. The first insulation layer 12 sleeved on their outside provides preliminary electrical isolation, preventing direct contact between the wire cores 1 and between the wire cores 1 and the external environment, ensuring safety in use. The wrapping layer 11 tightly wraps the multiple wire cores 1 together, strengthening the connecting wire. The overall structural strength is enhanced, which also helps with heat dissipation and maintains the relative position stability between the wire cores 1. The insulating paper 13 fills between the wire cores 1, further improving the insulation performance. This additional insulation layer is particularly important when transmitting high voltage or high frequency signals. The high temperature resistant layer 14 can maintain the structural integrity and electrical performance stability in high temperature environments, which is crucial for applications such as motors operating in high temperature environments. The second insulation layer 15 provides additional electrical isolation, further enhancing the safety of the connection wire. The protective sleeve 16, as the outermost layer of protection, can resist external threats such as mechanical damage and chemical corrosion, extending the service life of the connection wire. The anti-detachment component 2 can effectively prevent the connection wire from accidentally falling off during use. Especially in applications with vibration or frequent movement, this design greatly improves the reliability and stability of the connection.
[0022] As one implementation method in this embodiment, such as Figure 2 and Figure 3 As shown, the anti-detachment component 2 includes a bearing 21 fixedly sleeved on the outside of the protective sleeve 16. A fixed insert 22 is fixedly sleeved on the outer wall of the bearing 21. A fixed sleeve 23 is sleeved on the outside of the fixed insert 22. An internal thread 221 is formed on the outer wall of the fixed insert 22. An external thread 231 adapted to the internal thread 221 is formed on the inner wall of the fixed sleeve 23. The fixed insert 22 and the fixed sleeve 23 are threadedly connected. Multiple mounting rods 24 for connecting and fixing to the motor are circumferentially fixed on the outer wall of the fixed sleeve 23. In actual use, the mounting rods are first... 24 is fixed to the installation position with screws (or can be installed on the motor body), and then the end of the connecting wire is passed through the fixing sleeve 23. When the fixing insert 22 contacts the fixing sleeve 23, hold the gripping rod on the outside of the fixing sleeve 23 and then rotate the fixing sleeve 23. The fixing insert 22 rotates outside the protective sleeve 16 through the bearing 21, so that the fixing insert 22 is screwed into the fixing sleeve 23, thereby fixing the fixing insert 22. In this way, one end of the connecting wire can be fixed to prevent it from being pulled by external force or falling off due to vibration.
[0023] The first insulating layer 12 is made of silicone rubber, a high-performance elastomer with excellent heat resistance, cold resistance, electrical insulation, and chemical stability. The second insulating layer 15 is made of polychloroprene, a synthetic rubber with excellent oil resistance, solvent resistance, aging resistance, and flame retardancy. The wrapping layer 11 is made of synthetic resin film, such as polyester film and polyimide film, which has high strength, high insulation, and good processing performance. The high-temperature resistant layer 14 is made of Teflon, and the protective sleeve 16 is made of extruded, tensile, and tear-resistant ceramicized silicone rubber. Teflon (polytetrafluoroethylene, PTFE) is a plastic with extremely high heat resistance (-200℃ to +260℃) and chemical stability.
[0024] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A high temperature resistant motor connecting cord comprising a plurality of core wires (1) and a wrapping layer (11), characterized in that: A plurality of the wire core (1) is provided with a first insulation layer (12) outside, and a plurality of the wire core (1) is arranged in a wrapping layer (11), a plurality of the wire core (1) is filled with insulation paper (13), the wrapping layer (11) is provided with a high temperature resistant layer (14) outside, the high temperature resistant layer (14) is provided with a second insulation layer (15) outside, the second insulation layer (15) is provided with a protective sleeve (16) outside, the protective sleeve (16) is provided with a anti-drop assembly (2) for preventing the connecting wire from falling off outside.
2. A high temperature resistant motor connecting wire according to claim 1, characterized in that: The anti-drop assembly (2) comprises a bearing (21) fixedly sleeved outside the protective sleeve (16), a fixed insertion sleeve (22) is fixedly sleeved on the outer wall of the bearing (21), a fixed sleeve (23) is sleeved outside the fixed insertion sleeve (22), an internal thread (221) is formed on the outer wall of the fixed insertion sleeve (22), an external thread (231) matched with the internal thread (221) is formed on the inner wall of the fixed sleeve (23), the fixed insertion sleeve (22) is screwed with the fixed sleeve (23), and a plurality of mounting rods (24) for being fixedly connected with the motor are annularly fixed on the outer wall of the fixed sleeve (23).
3. The high temperature resistant motor connecting cord of claim 1, wherein: The first insulation layer (12) is made of silicone rubber.
4. The high temperature resistant motor connecting cord of claim 1, wherein: The second insulation layer (15) is made of polychloroprene.
5. A high temperature resistant motor connecting cord according to claim 1, wherein: The wrapping layer (11) is made of synthetic resin film.
6. A high temperature resistant motor connecting cord according to claim 1, wherein: The high temperature resistant layer (14) is made of Teflon.
7. A high temperature resistant motor connecting cord according to claim 1, wherein: The protective sleeve (16) is made of extruded tensile tear ceramicized silicone rubber.