Multi-core wire cable
By using the second filling layer and column groove combined with damping rod in a multi-core cable, and the design of the first insulating layer and inner groove combined with foam plastic, the problems of cable bending and cracking and the easing displacement of the spring shock absorber are solved, and the problem of cable bending and cracking is achieved. Higher signal stability and mechanical strength and service life of the cable.
Patent Information
- Application Number
- CN202420840907.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing multi-core cables are prone to bend and cracking during long-term use, and the internally installed spring shock absorber is complicated to operate and easily displace, resulting in failure of the buffering function.
The design of a second filling layer and column groove combined with damping rod is adopted. The column groove is filled with damping rod to absorb impact and vibration energy, reduce vibration propagation, and combine foam plastic through the first insulating layer and inner groove to absorb impact and vibration, improve the Flexibility and mechanical strength.
It effectively reduces the vibration propagation and noise propagation of the cable, improves the quality and stability of the signal transmission, enhances the safety and service life of the cable, and simplifies the production process.
Smart Images
Figure CN222190296U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cables, in particular to a multi-core cable. Background Art
[0002] Cable is a combination of conductive materials used to transmit electricity, telecommunication signals or data, usually composed of conductors, insulation layers, sheaths and other accessories. Cables can be divided into different types according to their uses. For example, power cables are used to transmit electricity, including low-voltage cables, medium-voltage cables and high-voltage cables, etc. Communication cables are used to transmit telephone, Internet and other communication signals, including fiber optic cables, coaxial cables, etc. Control cables are used to connect control devices and transmit control signals. Instrument cables are used to connect various instruments and transmit measurement signals. Electronic cables are used to connect electronic equipment such as computers, audio systems, etc.
[0003] For example, a multi-core cable disclosed in the authorization announcement number CN220106064U includes a protective component, a protective layer is arranged inside the protective component, a limiting layer is arranged on the inner wall of the protective layer, a plurality of wire cavities are opened inside the limiting layer, and an insulating layer is arranged inside the plurality of wire cavities. After adopting the above technical solution, the beneficial effects of the utility model are as follows: the problem of bending and cracking of the multi-core cable during long-term use is solved, and the practicality of the multi-core cable is greatly improved.
[0004] The above device has a simple structure and reasonable design, can meet the needs of users, and has great promotion value;
[0005] Although the above patent solves the problem of bending and cracking of multi-core cables during long-term use, the above cable uses springs to absorb shock, and setting springs in the cable structure is firstly cumbersome to operate, and secondly, the springs are prone to internal displacement, resulting in failure of the subsequent buffering function. Utility Model Content
[0006] The purpose of the utility model is to provide a multi-core cable to solve the problems raised in the above background technology.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] A multi-core cable comprising
[0009] An outer sheath, wherein a sheath layer is disposed inside the outer sheath, a first shielding layer is disposed inside the sheath layer, a first insulating layer is disposed inside the first shielding layer, and a first filling layer is disposed inside the first insulating layer;
[0010] A second shielding layer is arranged inside the first filling layer, a second insulating layer is arranged inside the second shielding layer, a second filling layer is arranged inside the second insulating layer, a plurality of conductors are arranged inside the second filling layer, and the outsides of the plurality of conductors are all covered with insulating sleeves.
[0011] Preferably, a plurality of inner grooves are transversely arranged inside the first insulating layer, and the interiors of the plurality of inner grooves are all filled with foam plastics;
[0012] Preferably, a plurality of column grooves are vertically arranged inside the second filling layer, and the interiors of the plurality of column grooves are all filled with damping rods;
[0013] Preferably, the first shielding layer is an aluminum foil shielding layer, the first insulating layer is butyl rubber, and the first filling layer is oil-impregnated paper;
[0014] Preferably, the second shielding layer is made of aluminum-magnesium alloy braided tape, the second insulating layer is made of cross-linked polyethylene, and the second filling layer is made of plastic;
[0015] Preferably, the conductor is made of pure copper or tinned copper.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] 1. This multi-core cable is used in conjunction with a second filling layer, a column groove and a damping rod. The column grooves vertically arranged inside the second filling layer are spaced equally, and the column grooves are filled with damping rods. The damping rods can absorb the impact and vibration energy received by the cable, thereby reducing the propagation and impact of vibration. The damping rods are tightly sleeved in the column grooves, and will not be displaced during daily use. The manufacture is also simple.
[0018] 2. This multi-core cable is used in combination with a first insulating layer, an inner groove and foam plastic. The inner grooves arranged laterally inside the first insulating layer are spaced equally apart, and the inner grooves are laterally filled with foam plastic. The foam plastic is mainly made of polymers, such as polystyrene, polyurethane, polypropylene, etc., and tiny bubbles or pore structures are formed by introducing gas or foaming agents into the plastic. The elasticity of the foam plastic can absorb impact and vibration, and the bubble structure of the foam plastic has good thermal insulation properties, and can effectively absorb sound to reduce noise transmission. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall main structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the conductor installation structure of the utility model;
[0021] Figure 3 This is a schematic diagram of the first insulating layer structure of the utility model;
[0022] Figure 4 This is a schematic diagram of the second filling layer structure of the present utility model.
[0023] In the figure: 1, outer sheath; 2, sheath layer; 3, first shielding layer; 4, first insulating layer; 401, inner groove; 402, foam plastic; 5, first filling layer; 6, second shielding layer; 7, second insulating layer; 8, second filling layer; 801, column groove; 802, damping rod; 9, conductor; 10, insulating sleeve. 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] like Figure 1-4 As shown, a technical solution provided by the utility model:
[0026] A multi-core cable comprises an outer sheath 1, wherein a sheath layer 2 is arranged inside the outer sheath 1, a first shielding layer 3 is arranged inside the sheath layer 2, a first insulating layer 4 is arranged inside the first shielding layer 3, a first filling layer 5 is arranged inside the first insulating layer 4; a second shielding layer 6 is arranged inside the first filling layer 5, a second insulating layer 7 is arranged inside the second shielding layer 6, a second filling layer 8 is arranged inside the second insulating layer 7, a plurality of conductors 9 are arranged inside the second filling layer 8, the conductors 9 are made of pure copper or tinned copper, and the outsides of the plurality of conductors 9 are all covered with insulating sleeves 10;
[0027] In this embodiment, the combined use of the first shielding layer 3, the first insulating layer 4, the first filling layer 5 and the second shielding layer 6, the second insulating layer 7 and the second filling layer 8 effectively reduces the electrical noise and signal interference of the cable, and improves the quality and stability of signal transmission. The conductor 9 is made of high-quality copper wire to ensure the conductivity of current transmission, reduce resistance, and reduce energy loss. The use of the first insulating layer 4 and the second insulating layer 7 improves the voltage resistance of the cable, reduces the risk of insulation breakdown between wires, and enhances the safety of the cable. The use of the first filling layer 5 and the second filling layer 8 increases the flexibility and mechanical strength of the cable, so that it can withstand external impact and extrusion in various complex environments. The use of the outer sheath 1 and the sheath layer 2 provides additional protection, so that the cable has good wear resistance and corrosion resistance, and extends the service life of the cable.
[0028] like Figure 3 As shown, a plurality of inner grooves 401 are transversely arranged inside the first insulating layer 4, and the interiors of the plurality of inner grooves 401 are all filled with foam plastic 402;
[0029] In this embodiment, the inner grooves 401 arranged laterally inside the first insulating layer 4 are equidistant from each other, and the inner grooves 401 are laterally filled with foam plastic 402. The foam plastic 402 is mainly made of polymers, such as polystyrene, polyurethane, polypropylene, etc., and tiny bubbles or pore structures are formed by introducing gas or foaming agent into the plastic. The elasticity of the foam plastic 402 can absorb shock and vibration, and the bubble structure of the foam plastic 402 has good thermal insulation properties, and can effectively absorb sound to reduce noise transmission.
[0030] like Figure 4 As shown, a plurality of column grooves 801 are vertically arranged inside the second filling layer 8, and the interiors of the plurality of column grooves 801 are all filled with damping rods 802;
[0031] In this embodiment, the column grooves 801 vertically arranged inside the second filling layer 8 are equidistant from each other, and the column grooves 801 are filled with damping rods 802. The damping rods 802 can absorb the impact and vibration energy received by the cable, thereby reducing the propagation and impact of vibration, and the damping rods 802 are tightly sleeved in the column grooves 801, and will not be displaced during daily use, and are easy to manufacture.
[0032] like Figure 1 As shown, the first shielding layer 3 is made of aluminum foil, the first insulating layer 4 is made of butyl rubber, and the first filling layer 5 is made of oil-impregnated paper;
[0033] In this embodiment, the first shielding layer 3 is a thin layer of aluminum foil covering the outside of the first insulating layer 4. This layer of aluminum foil has excellent conductive properties and can effectively shield external electromagnetic waves and interference signals. The aluminum foil shielding is used to ensure that the conductor 9 is effectively protected from external electromagnetic interference.
[0034] like Figure 1 As shown, the second shielding layer 6 is made of aluminum-magnesium alloy braided tape, the second insulating layer 7 is made of cross-linked polyethylene, and the second filling layer 8 is made of plastic;
[0035] In this embodiment, the second shielding layer 6 is made of aluminum-magnesium alloy and covered on the outside of the second insulating layer 7 in a woven form. The woven structure provides flexibility, so that the cable is not easily damaged when bent or moved. The woven structure also increases the mechanical strength of the second shielding layer 6.
[0036] Working principle: Through the combined use of the first shielding layer 3, the first insulating layer 4, the first filling layer 5 and the second shielding layer 6, the second insulating layer 7 and the second filling layer 8, the electrical noise and signal interference of the cable are effectively reduced, and the quality and stability of signal transmission are improved. The conductor 9 is made of high-quality copper wire to ensure the conductive performance of current transmission, reduce resistance, and reduce energy loss. The use of the first insulating layer 4 and the second insulating layer 7 improves the voltage resistance of the cable, reduces the risk of insulation breakdown between wires, and enhances the safety of the cable. The use of the first filling layer 5 and the second filling layer 8 increases the flexibility and mechanical strength of the cable, enabling it to withstand external impact and extrusion in various complex environments. The use of the outer sheath 1 and the sheath layer 2 provides additional protection, so that the cable has good wear resistance and corrosion resistance, and extends the service life of the cable.
[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A multi-core cable, characterized in that: include An outer sheath (1), wherein a sheath layer (2) is arranged inside the outer sheath (1), a first shielding layer (3) is arranged inside the sheath layer (2), a first insulating layer (4) is arranged inside the first shielding layer (3), and a first filling layer (5) is arranged inside the first insulating layer (4); A second shielding layer (6) is arranged inside the first filling layer (5), a second insulating layer (7) is arranged inside the second shielding layer (6), a second filling layer (8) is arranged inside the second insulating layer (7), a plurality of conductors (9) are arranged inside the second filling layer (8), and the outsides of the plurality of conductors (9) are all covered with insulating sleeves (10).
2. A multi-core cable according to claim 1, characterized in that: A plurality of inner grooves (401) are transversely arranged inside the first insulating layer (4), and the interiors of the plurality of inner grooves (401) are all filled with foam plastic (402).
3. A multi-core cable according to claim 1, characterized in that: A plurality of column grooves (801) are vertically arranged inside the second filling layer (8), and the interiors of the plurality of column grooves (801) are all filled with damping rods (802).
4. A multi-core cable according to claim 1, characterized in that: The first shielding layer (3) is made of an aluminum foil shielding layer, the first insulating layer (4) is made of butyl rubber, and the first filling layer (5) is made of oil-impregnated paper.
5. A multi-core cable according to claim 1, characterized in that: The second shielding layer (6) is made of an aluminum-magnesium alloy braided tape, the second insulating layer (7) is made of cross-linked polyethylene, and the second filling layer (8) is made of plastic.
6. A multi-core cable according to claim 1, characterized in that: The conductor (9) is made of pure copper or tinned copper.