Environment-friendly current collecting cable
By setting a cavity and elastic layer in the cable and combining specific materials, the cable is solved due to thermal expansion, cold contraction and cracking and fire hazardous substance emissions, and the improvement of compressive resistance, extension and environmental protection performance is achieved.
Patent Information
- Application Number
- CN202422346207.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-25
AI Technical Summary
Existing cables are prone to cracking due to pressure and temperature changes when used underground for a long time, resulting in short circuits, and release a large amount of harmful substances in the fire, polluting the environment.
It adopts a protective layer structure, including a fill layer, a fire-resistant layer, an environmentally friendly layer, a waterproof layer and an anti-wear layer, and has a cavity and an elastic layer inside. Polyphenylene elastomer and ceramicized refractory silicone rubber materials are used to enhance compressive resistance and ductility and reduce harmful gas emissions.
It improves the compression resistance and extension ability of the cable, reduces damage caused by thermal expansion and contraction, effectively isolates flame and gas emissions during fires, reduces the emission of harmful substances, and protects the environment.
Smart Images
Figure CN223140428U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of environmental protection current - collecting cables, and particularly relates to an environmental protection current - collecting cable. Background Art
[0002] An environmental protection cable refers to a wire and cable that does not contain heavy metals such as lead, cadmium, hexavalent chromium, mercury, does not contain brominated flame retardants, and meets the EU environmental protection requirements through the testing of environmental protection performance by an SGS - recognized testing institution. It does not produce harmful halogen gases, does not produce corrosive gases, has a small calorific value when burning, and does not pollute the soil. Due to its good characteristics, environmental protection cables are widely used in wiring and are also favored by a large number of customers.
[0003] Existing cables generally do not have good ductility and environmental protection performance. When cables are used, they are generally buried deep underground. When used underground for a long time, due to the thermal expansion and contraction caused by changes in pressure and temperature, the cables are easily cracked, resulting in short - circuits inside the cables. Moreover, once a cable catches fire, a large amount of harmful substances will be released during the intense combustion of the cable, which will affect the land and the surrounding environment. Summary of the Utility Model
[0004] In view of the problems existing in the above - mentioned existing cables, the present utility model is proposed.
[0005] Therefore, the purpose of the present utility model is to provide an environmental protection current - collecting cable, which solves the problems that when used underground for a long time, due to the thermal expansion and contraction caused by changes in pressure and temperature, the cables are easily cracked, resulting in short - circuits inside the cables, and moreover, once a cable catches fire, a large amount of harmful substances will be released during the intense combustion of the cable, which will affect the land and the surrounding environment.
[0006] To achieve the above purpose, the present utility model provides the following technical solution: An environmental protection current - collecting cable includes a protective layer and a plurality of electric cores. The protective layer includes a filling layer, a fire - resistant layer, an environmental protection layer, a waterproof layer, and an abrasion - resistant layer. The surface of the filling layer is fixedly connected to the inside of the fire - resistant layer. The surface of the fire - resistant layer is fixedly connected to the inside of the environmental protection layer. The surface of the environmental protection layer is fixedly connected to the inside of the waterproof layer. The surface of the waterproof layer is fixedly connected to the inside of the abrasion - resistant layer. The surface of each electric core is fixedly connected with a fire - proof insulation layer. The surface of each fire - proof insulation layer is fixedly connected to the inside of the filling layer. A cavity for separating the electric cores is formed inside the filling layer. A support column is fixedly arranged at the center of the cavity. An elastic layer is filled inside the cavity. The elastic layer is a polyphenylene ether elastomer layer. The environmental protection layer is a low - smoke and halogen - free polyolefin layer.
[0007] Preferably, the fire - proof insulation layer includes a mica paper layer and a glass fiber cloth layer.
[0008] Preferably, the fire-resistant layer is a ceramized refractory silicone rubber layer.
[0009] Preferably, the filling layer is a low-smoke and halogen-free asbestos filling rope layer.
[0010] Furthermore, the waterproof layer is a paraffin cloth layer.
[0011] Preferably, the abrasion-resistant layer is a neoprene layer.
[0012] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:
[0013] 1. In the present utility model, by providing a cavity and an elastic layer, the compressive and extensible capabilities of the cable are enhanced. When the cable is bent or expands and contracts, the polyphenylene ether elastomer inside the cavity is squeezed. Utilizing the characteristics of high tensile strength, elongation at break, and impact strength of the polyphenylene ether elastomer, the internal filling layer and the battery core are protected from being damaged due to extrusion, thermal expansion, and contraction.
[0014] 2. In the present utility model, once a fire occurs, the ceramized refractory silicone rubber will be ablated and transformed into a hard ceramic-like substance within a very short time, forming a good isolation layer to isolate the flames and gases inside. Additionally, by using the low-smoke and halogen-free polyolefin with high flame retardancy, the amount of halogen acid gas, toxic, and corrosive gases it releases is extremely small, reducing the emission of harmful gases and avoiding affecting the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.
[0016] Figure 1 is a schematic structural diagram of the present utility model;
[0017] Figure 2 is a sectional three-dimensional structural sectional view of the present utility model;
[0018] Figure 3 is a schematic structural diagram of the fire-resistant insulation layer in the present utility model.
[0019] Description of the reference numerals:
[0020] 1. Protective layer; 2. Battery core; 3. Filling layer; 4. Fire-resistant layer; 5. Environmental protection layer; 6. Waterproof layer; 7. Abrasion-resistant layer; 8. Fireproof insulation layer; 9. Cavity; 10. Support column; 11. Elastic layer. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] To enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0022] An embodiment of the present utility model discloses an environmentally friendly current-collecting cable.
[0023] The present utility model provides an environmentally friendly current-collecting cable as Figures 1-3 shown, which includes a protective layer 1 and a plurality of battery cells 2. The protective layer 1 includes a filling layer 3, a fire-resistant layer 4, an environmental protection layer 5, a waterproof layer 6 and an abrasion-resistant layer 7. The surface of the filling layer 3 is fixedly connected to the inside of the fire-resistant layer 4. The surface of the fire-resistant layer 4 is fixedly connected to the inside of the environmental protection layer 5. The surface of the environmental protection layer 5 is fixedly connected to the inside of the waterproof layer 6. The surface of the waterproof layer 6 is fixedly connected to the inside of the abrasion-resistant layer 7. The surface of each battery cell 2 is fixedly connected with a fireproof insulation layer 8. The surface of each fireproof insulation layer 8 is fixedly connected to the inside of the filling layer 3. A cavity 9 for separating the battery cells 2 is formed inside the filling layer 3. A support column 10 is fixedly arranged at the center inside the cavity 9. The inside of the cavity 9 is filled with an elastic layer 11. The elastic layer 11 is a polyphenylene ether elastomer layer. The fire-resistant layer 4 is a ceramized refractory silicone rubber layer. The environmental protection layer 5 is a low-smoke and halogen-free polyolefin layer.
[0024] By providing the cavity 9 and the elastic layer 11, the compressive resistance and extensibility of the cable are improved. When the cable is bent or expands and contracts, the polyphenylene ether elastomer inside the cavity 9 is extruded. By utilizing the characteristics of the polyphenylene ether elastomer with strong tensile strength, elongation rate and impact strength, the internal filling layer 3 and battery cells 2 are protected from being damaged due to extrusion and thermal expansion and contraction.
[0025] Once a fire occurs, the ceramized refractory silicone rubber will be ablated and transformed into a hard ceramic-like substance in a very short time, forming a good isolation layer to isolate the internal part of the flame and gas. Then, by using the low-smoke and halogen-free polyolefin with high flame retardancy, the amount of halogen acid gas, toxicity and corrosive gas it releases is extremely small, reducing the emission of harmful gases and avoiding affecting the surrounding environment.
[0026] To prevent conduction between the battery cells 2, as Figures 1-3 shown, the fireproof insulation layer 8 includes a mica paper layer and a fiberglass cloth layer.
[0027] As an insulating material, mica paper has excellent electrical properties and stability. Fiberglass cloth is an inorganic non-metallic material with the functions of fire prevention, flame retardancy and insulation. Since the fiberglass cloth has poor resistance, it needs to be used in combination with mica paper to achieve the functions of fire prevention and insulation, preventing conduction between the battery cells 2 and short circuit.
[0028] To reduce harmful gases, as Figures 1-3 shown, the filling layer 3 is a low-smoke and halogen-free asbestos filling cord layer.
[0029] The low-smoke and halogen-free asbestos-filled rope is a special cable filling material with the characteristics of low smoke and halogen-free, which can increase the roundness of the cable and at the same time provide flame retardant, fire resistance, halogen-free low-smoke flame retardant and other characteristics, reducing the generation of harmful gases when the cable burns.
[0030] In order to avoid the influence of underground humidity on the use of the cable, as Figures 1-3 shown, the waterproof layer 6 is a paraffin cloth layer.
[0031] Using paraffin cloth can avoid the influence of underground humidity on the use of the cable when it is buried underground.
[0032] Finally, in order to increase the service life of the cable, as Figures 1-3 shown, the abrasion-resistant layer 7 is a chloroprene rubber layer.
[0033] The physical and mechanical properties of chloroprene rubber are excellent, with good abrasion resistance, increasing the service life of the cable.
[0034] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.
Claims
1. An environmentally friendly current-collecting cable, comprising a protective layer (1) and a plurality of battery cells (2), characterized in that: The protective layer (1) includes a filling layer (3), a fire-resistant layer (4), an environmental protection layer (5), a waterproof layer (6), and an abrasion-resistant layer (7). The surface of the filling layer (3) is fixedly connected to the inside of the fire-resistant layer (4). The surface of the fire-resistant layer (4) is fixedly connected to the inside of the environmental protection layer (5). The surface of the environmental protection layer (5) is fixedly connected to the inside of the waterproof layer (6). The surface of the waterproof layer (6) is fixedly connected to the inside of the abrasion-resistant layer (7). A fireproof insulation layer (8) is fixedly connected to the surface of each cell (2). The surface of each fireproof insulation layer (8) is fixedly connected to the inside of the filling layer (3). A cavity (9) for separating the cells (2) is formed inside the filling layer (3). The cross-section of the cavity (9) is cross-shaped. A support column (10) is fixedly arranged at the center inside the cavity (9). The cavity (9) is filled with an elastic layer (11). The elastic layer (11) is a polyphenylene ether elastomer layer. The environmental protection layer (5) is a low-smoke and halogen-free polyolefin layer.
2. The environmentally friendly current-collecting cable according to claim 1, wherein: The fireproof insulation layer (8) includes a mica paper layer and a fiberglass cloth layer.
3. An environmentally friendly current-collecting cable according to claim 1, characterized in that: The fire-resistant layer (4) is a ceramicized refractory silicone rubber layer.
4. The environmentally friendly current-collecting cable according to claim 1, wherein: The filling layer (3) is a low-smoke and halogen-free asbestos filling rope layer.
5. An environmentally friendly current-collecting cable according to claim 1, characterized in that: The waterproof layer (6) is a paraffin cloth layer.
6. The environmentally friendly current-collecting cable according to claim 1, wherein: The abrasion-resistant layer (7) is a chloroprene rubber layer.