Flame-retardant power cable
By introducing a multi-layer flame-retardant structure and a temperature-sensing wire alarm system into the cable, the problem of poor flame-retardant effect of the cable is solved, enabling rapid fire alarm and flame control, and improving the safety of the cable.
Patent Information
- Application Number
- CN202422954707.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing power cables have poor flame retardancy, resulting in delayed fire detection and response, and poor safety.
It adopts a multi-layer structure design, including a copper core, a wrapping tape layer, a flame retardant layer, and a temperature-sensing wire. Combined with a flame retardant and a fire alarm system, the temperature-sensing wire detects temperature changes and triggers the alarm. The flame retardant absorbs heat as the flame spreads to form an isolation layer, enhancing the flame retardant performance.
It enables rapid fire alarm and delays the spread of flames in cables, improves the timeliness of fire response and the flame-retardant properties of cables, and enhances safety.
Smart Images
Figure CN223612130U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of flame -retardant power cable, concretely is a kind of flame -retardant power cable. BACKGROUND
[0002] Cable is the carrier of energy transmission, and is one of the essential facilities for power transmission. It is usually composed of several or several groups of twisted wires, each group of wires is insulated from each other, and a protective layer is wrapped on the outermost layer of the cable. The cable has the characteristics of internal power supply and external insulation, thereby transporting power from one place to another. The protective layer wrapped on the outermost layer of the cable can be set in different environments.
[0003] The structure of the existing power cable conductor is generally composed of an outer insulating layer, a conductive core and an inner insulating layer. The inner insulating layer is located outside the conductive core, and the conductive core is composed of multiple wires located in the outer insulating layer. The existing outer insulating layer has a circular cavity, and the wires are arranged randomly. The amount of flame-retardant material in the insulating layer is small, the flame-retardant effect is not good, the safety is poor during use, and it takes a long time for the staff to discover the fire of the cable when the cable catches fire, so that the fire cable cannot be handled in time. SUMMARY
[0004] The utility model aims to provide a kind of flame -retardant power cable, solve the problem raised in the above background.
[0005] To solve the above technical problems, the utility model is realized by the following technical solutions:
[0006] The utility model is a kind of flame -retardant power cable, comprising a plurality of copper cores, the copper core is provided with wrapping tape layer outside, the wrapping tape layer is provided with flame -retardant layer one outside, the flame -retardant layer one is provided with flame -retardant layer two outside, the flame -retardant layer one and flame -retardant layer two are filled with flame -retardant agent, the flame -retardant layer two is provided with multiple temperature sensing wires, the temperature sensing wires are connected with external fire alarm.
[0007] Further, the copper core is wrapped in the flame -retardant insulating layer, and the flame -retardant insulating layer and the wrapping tape layer are filled with an oxygen isolation layer.
[0008] Further, the wrapping tape layer is wrapped in the protective layer, the protective layer is wrapped in the shielding layer, the shielding layer is wrapped in the armor layer, the flame -retardant layer two is wrapped in the waterproof layer, and the waterproof layer is wrapped in the outer sheath.
[0009] Further, a containing groove is formed on one side of the waterproof layer close to the outer sheath, and the containing groove is filled with an insecticide.
[0010] Further, the flame -retardant insulating layer is wrapped with ceramicized silicone rubber composite tape.
[0011] Further, the flame retardant is aluminum hydroxide powder or aluminum phosphorus powder.
[0012] Further, the first and second flame retardant layers are made of chlorinated polyolefin material.
[0013] The utility model has the following beneficial effects:
[0014] The utility model discloses a power cable with a first flame retardant layer and a second flame retardant layer, wherein the first flame retardant layer is made of chlorinated polyolefin material, and the second flame retardant layer is made of aluminum hydroxide powder or aluminum phosphorus powder.
[0015] The utility model discloses a power cable with a first flame retardant layer and a second flame retardant layer, wherein the first flame retardant layer is made of chlorinated polyolefin material, and the second flame retardant layer is made of aluminum hydroxide powder or aluminum phosphorus powder.
[0016] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above at the same time. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be needed to use the drawings of the embodiment to make a brief introduction, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.
[0018] Figure 1 It is the sectional view of the utility model;
[0019] Figure 2 It is the sectional view of the utility model; Figure 1 It is the enlarged structure schematic view of A in the utility model;
[0020] Figure 3 It is the partial structure schematic view in the utility model; Figure 1 It is the partial structure schematic view in the utility model;
[0021] In the drawings, the component list represented by each sign is as follows:
[0022] In the drawings, the component list represented by each sign is as follows: 1, copper core; 2, flame-retardant insulating layer; 3, oxygen isolation layer; 4, wrapping tape layer; 5, protective layer; 6, shielding layer; 7, armored layer; 8, first flame-retardant layer; 9, flame retardant; 10, second flame-retardant layer; 11, temperature sensing wire; 12, waterproof layer; 1201, accommodating groove; 13, insect repellent; 14, outer sheath. DETAILED DESCRIPTION
[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0024] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the present application.
[0025] Please refer to Figures 1-3 As shown in the drawings, the utility model is a kind of flame-retardant power cable, including multiple copper core 1, the copper core 1 is provided with wrapping tape layer 4 outside, wrapping tape layer 4 is provided with flame-retardant layer one 8 outside, flame-retardant layer one 8 is provided with flame-retardant layer two 10 outside, flame-retardant layer one 8 and flame-retardant layer two 10 are filled with flame retardant 9, flame-retardant layer two 10 is provided with multiple temperature sensing wires 11, temperature sensing wire 11 is connected with external fire alarm, in the embodiment, the flame-retardant performance of the power cable can be effectively improved by flame-retardant layer two 10, flame spreading is prevented, when flame burns flame-retardant layer two 10, temperature sensing wire 11 receives temperature change and sends signal to fire alarm, fire alarm alarms so that staff can discover fire in time, then power-off fire extinguishing treatment is carried out, flame retardant 9 and flame-retardant layer one 8 are inside flame-retardant layer two 10, after fire alarm alarms, flame retardant 9 and flame-retardant layer one 8 can further slow down the spreading speed of flame, to provide more processing time for staff.
[0026] Among them, the copper core 1 is wrapped in flame-retardant insulation layer 2, the flame-retardant insulation layer 2 and wrapping tape layer 4 are filled with oxygen barrier layer 3, in the embodiment, copper core 1 for transmitting power is arranged in flame-retardant insulation layer 2, and flame-retardant insulation layer 2 and oxygen barrier layer 3 cooperate to further prevent flame from spreading to copper core 1.
[0027] The wrapping tape layer 4 is wrapped in the protection layer 5, the protection layer 5 is wrapped in the shielding layer 6, the shielding layer 6 is wrapped in the armored layer 7, the fire-retardant layer two 10 is wrapped in the waterproof layer 12, and the waterproof layer 12 is wrapped in the outer sheath 14, the protection layer 5 plays a protection role on the wrapping tape layer 4 in the embodiment, the shielding layer 6 can limit the electromagnetic field of the generated cable inside the cable, reduce the electromagnetic interference on external elements, and resist the influence of the external electromagnetic field on the internal signal of the cable, and the armored layer 7 can significantly increase the compression resistance and tensile capacity of the cable, and the waterproof layer 12 effectively prevents moisture from penetrating into the cable, and prevents the performance of the cable from being degraded and failure from occurring.
[0028] The waterproof layer 12 is provided with a containing groove 1201 on one side close to the outer sheath 14, and the containing groove 1201 is filled with the insect repellent 13, and the insect repellent 13 can effectively prevent the cable from being bitten and damaged by insects and mice in the embodiment.
[0029] The fire-retardant insulation layer 2 is wrapped by using a ceramicized silicone rubber composite tape, the ceramicized silicone rubber composite tape plays a fireproof and fire-resistant role in the embodiment, prevents circuit short circuit and open circuit, has good flexibility, has very superior tensile strength, meets the high-strength wrapping tension, and forms strong protection on the insulation of the inner layer.
[0030] The fire-retardant agent 9 is aluminum hydroxide powder or aluminum phosphorus powder, and the aluminum hydroxide powder or aluminum phosphorus powder decomposes and absorbs a large amount of heat and forms an isolation layer after being heated, thereby preventing combustion in the embodiment.
[0031] The fire-retardant layer one 8 and the fire-retardant layer two 10 are made of chlorinated polyolefin materials, and the fire-retardant layer made of chlorinated polyolefin has good fire-retardant performance and can effectively improve the fire resistance of the cable in the embodiment.
[0032] It can be understood that, first, when the flame burns the fire-retardant layer two 10, the temperature sensing wire 11 senses the temperature change and sends a signal to the fire alarm, and the fire alarm alarms, and the fire-retardant performance of the power cable is further improved through the fire-retardant layer one 8, after the flame breaks through the fire-retardant layer two 10, the fire-retardant agent 9 between the fire-retardant layer one 8 and the fire-retardant layer two 10 decomposes and absorbs a large amount of heat and forms an isolation layer, thereby preventing the flame from burning.
[0033] A specific application of the embodiment is that the second fire-retardant layer 10 can effectively improve the fire-retardant performance of the power cable, prevent the spread of fire, and when the flame burns the second fire-retardant layer 10, the temperature change is sensed by the temperature sensing conductor 11 to send a signal to the fire alarm, the fire alarm alarms to enable the staff to discover the fire in time, and then power-off and fire-extinguishing treatment is performed, the fire retardant 9 and the first fire-retardant layer 8 are inside the second fire-retardant layer 10, and after the fire alarm alarms, the fire retardant 9 and the first fire-retardant layer 8 can further slow down the spread speed of the flame, providing more processing time for the staff, the power cable is further provided with the fire-retardant insulating layer 2 and the oxygen isolation layer 3, which can slow down the spread of the flame to the copper core 1, the waterproof layer 12 is arranged outside the second fire-retardant layer 10 and the fire retardant 9, which can prevent the fire retardant 9 from being waterlogged and inactivated.
[0034] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0035] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.
Claims
1. A flame-retardant power cable, characterized by: The application relates to a copper core (1) wrapped with a wrapping tape layer (4), the wrapping tape layer (4) is wrapped with a fire-retardant layer one (8), the fire-retardant layer one (8) is wrapped with a fire-retardant layer two (10), the fire-retardant layer one (8) and the fire-retardant layer two (10) are filled with a fire-retardant agent (9), the fire-retardant layer two (10) is provided with a plurality of temperature sensing wires (11), and the temperature sensing wires (11) are connected with external fire alarms.
2. A fire resistant power cable according to claim 1, characterised in that: The copper core (1) is wrapped with a fire-retardant insulation layer (2), and the fire-retardant insulation layer (2) and the wrapping tape layer (4) are filled with an oxygen isolation layer (3).
3. A fire resistant power cable according to claim 1, characterised in that: The wrapping tape layer (4) is wrapped with a protection layer (5), the protection layer (5) is wrapped with a shielding layer (6), the shielding layer (6) is wrapped with an armored layer (7), the fire-retardant layer two (10) is wrapped with a waterproof layer (12), and the waterproof layer (12) is wrapped with an outer sheath (14).
4. A fire resistant power cable according to claim 3, characterised in that: The waterproof layer (12) is provided with a containing groove (1201) on one side close to the outer sheath (14), and the containing groove (1201) is filled with an insecticide (13).
5. A fire resistant power cable according to claim 2, characterised in that: The fire-retardant insulation layer (2) is wrapped with a ceramicized silicon rubber composite tape.
6. A fire resistant power cable according to claim 1, characterised in that: The fire-retardant agent (9) is aluminum hydroxide powder or aluminum phosphorus powder.
7. A fire resistant power cable according to claim 1, characterised in that: The fire-retardant layer one (8) and the fire-retardant layer two (10) are made of chlorinated polyolefin material.