CN219534127U

CN219534127U - Flame-retardant high-temperature-resistant cable

Info

Publication number: CN219534127U
Application number: CN202223591601.3U
Authority: CN
Inventors: 宋晨
Original assignee: Shenyang Zhenglian Wire And Cable Co ltd
Current assignee: Shenyang Zhenglian Wire And Cable Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-08-15
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a flame-retardant high-temperature-resistant cable which comprises a cable core, a filling layer, an inner protective layer, an outer protective layer, a heat insulation layer, a flame-retardant layer and an insulation sleeve, wherein the cable core is formed by twisting a plurality of wires, the cable core is wrapped in an inner cavity of the inner protective layer, the filling layer is arranged at a gap between the inner protective layer cavity and the cable core, the outer side of the inner protective layer is wrapped in the inner cavity of the outer protective layer, and the outer side of the outer protective layer is wrapped in the inner cavity of the heat insulation layer. Through equipartition at the ring middle part equi-angle on fire-retardant layer and be equipped with a plurality of fire-retardant holes, fire-retardant downthehole packing is equipped with dry powder fire extinguishing agent, ensures to realize putting out a fire fast under the circumstances of outside open flame, protects the cable core, sets up the insulating layer of polytetrafluoroethylene material, provides good high temperature resistance for the cable, makes it can have the operational environment that is applicable to high temperature, prevents the destruction of high temperature to the cable, and the material of filling layer is modified glass fiber in order to guarantee the rounding nature of cable, avoids the twist shape that appears on the cable surface in production and the use.

Description

Flame-retardant high-temperature-resistant cable

Technical Field

The utility model relates to the field of cables, in particular to a flame-retardant high-temperature-resistant cable.

Background

The cable is formed by combining one or more cables, and each cable is connected through an insulating coating layer, so that the condition of interference between the cables is avoided, and the cable is used for transmitting electric power and a signal.

In the process of using the existing cable, the internal current can generate high temperature in the process of transportation, and after long-time use, the cable insulating coating is easy to age, so that the condition of burning easily occurs, the potential safety hazard of use is increased, and the use is inconvenient. Accordingly, a flame-retardant and high-temperature-resistant cable is proposed in view of the above-mentioned problems.

Disclosure of Invention

The embodiment provides a fire-retardant high temperature resistant cable is arranged in solving the current cable in the prior art and is in the in-process of using, and inside electric current can produce the high temperature at the in-process of transportation, and after long-time use, it is ageing to cause cable insulation coating easily, and then the condition of taking place the burning easily has increased the potential safety hazard of use, uses comparatively inconvenient problem.

According to one aspect of the utility model, a flame-retardant and high-temperature-resistant cable is provided, and comprises a wire core, a filling layer, an inner protective layer, an outer protective layer, a heat-insulating layer, a flame-retardant layer and an insulating sleeve, wherein the wire core is formed by twisting a plurality of wires, the wire core is wrapped in an inner protective layer cavity, the filling layer is arranged at a gap between the inner protective layer cavity and the wire core, the outer side of the inner protective layer is wrapped in an outer protective layer cavity, the outer side of the outer protective layer is wrapped in a heat-insulating layer cavity, the outer side of the heat-insulating layer is wrapped in a flame-retardant layer cavity, and the outer side of the flame-retardant layer is wrapped in an insulating sleeve cavity.

Further, the inner protective layer is provided as an aluminum foil.

Further, the outer protective layer is formed by wrapping a plurality of layers of fire-resistant nets, and asbestos fibers are filled between the fire-resistant nets.

Further, the filling layer is made of modified glass fibers.

Further, a plurality of flame-retardant holes are uniformly formed in the middle of the circular ring of the flame-retardant layer at equal angles, and dry powder extinguishing agent is filled in the flame-retardant holes.

Further, the heat insulation layer is made of polytetrafluoroethylene.

According to the embodiment of the utility model, the flame-retardant high-temperature-resistant cable is adopted, so that the problems that the current in the cable can generate high temperature in the transportation process in the use process, the cable insulating coating is easy to age after long-time use, the combustion is easy to occur, the potential safety hazard of use is increased, the use is inconvenient and the use is more convenient are solved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic overall perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the overall internal structure of an embodiment of the present utility model;

fig. 3 is a schematic view showing an internal structure of a flame retardant layer according to an embodiment of the present utility model.

In the figure: 101. a wire core; 102. a filling layer; 103. an inner protective layer; 104. an outer protective layer; 105. a thermal insulation layer; 106. a flame retardant layer; 107. an insulating sleeve.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1-3, a flame-retardant and high-temperature-resistant cable comprises a cable core 101, a filling layer 102, an inner protection layer 103, an outer protection layer 104, a heat insulation layer 105, a flame-retardant layer 106 and an insulation sleeve 107, wherein the cable core 101 is formed by twisting a plurality of wires, the cable core 101 is wrapped in an inner cavity of the inner protection layer 103, the filling layer 102 is arranged at a gap between the inner cavity of the inner protection layer 103 and the cable core 101, the outer side of the inner protection layer 103 is wrapped in an inner cavity of the outer protection layer 104, the outer side of the outer protection layer 104 is wrapped in an inner cavity of the heat insulation layer 105, the outer side of the heat insulation layer 105 is wrapped in an inner cavity of the flame-retardant layer 106, and the outer side of the flame-retardant layer 106 is wrapped in an inner cavity of the insulation sleeve 107.

The inner protective layer 103 is arranged to be an aluminum foil sheet, the outer protective layer 104 is arranged to be formed by wrapping a plurality of layers of fire-resistant nets, asbestos fibers are filled between the fire-resistant nets, the material of the filling layer 102 is modified glass fibers, a plurality of flame-retardant holes are uniformly distributed in the middle of the circular ring of the flame-retardant layer 106 at equal angles, dry powder extinguishing agent is filled in the flame-retardant holes, and the heat insulation layer 105 is made of polytetrafluoroethylene.

When the cable is used, the electrical element is externally connected with a power supply and a control switch, the inner protective layer 103 is arranged, the inner protective layer 103 is an aluminum foil sheet with a rectangular and uniform cross section, and is a calendared aluminum product, so that the heat dissipation performance is good, the temperature on the cable core 101 can be conducted to the aluminum foil sheet, the heat dissipation and cooling effects are further achieved, the outer protective layer 104 is arranged, the outer protective layer 104 is formed by wrapping a plurality of layers of fire-resistant nets, asbestos fibers are filled between the fire-resistant nets, the plurality of layers of fire-resistant nets are rewound, the cable can be in a molten state at high temperature, and is not combusted, the molten material flows out through the fire-resistant flame-retardant layer 10642, the flame-retardant effect and the heat exchange air permeability are improved, a plurality of flame-retardant holes are uniformly formed in the middle part of the annular ring of the flame-retardant layer 106, and are filled with dry powder fire-extinguishing agent, the cable core 101 can be protected under the condition of external open fire, the heat dissipation performance is guaranteed, the heat-resistant performance is good, the cable can be provided with high-temperature performance, the cable can be prevented from being damaged by the high-temperature environment, the cable is prevented from being uniformly distributed by the fire-resistant fiber, and the whole-resistant fiber is prevented from being filled with the glass fiber in the cable, and the whole-shaped cable is prevented from being completely round, and the cable is prevented from being deformed, and the surface from being deformed.

The utility model has the advantages that:

1. the utility model is simple to operate, the inner protective layer is arranged as an aluminum foil sheet which is a rolled aluminum product with rectangular and uniform cross section, and has good heat radiation performance, so that the temperature on a cable core can be conducted to the aluminum foil sheet to further play roles of heat radiation and cooling;

2. the utility model has reasonable structure, the middle part of the circular ring of the flame-retardant layer is uniformly provided with a plurality of flame-retardant holes at equal angles, the flame-retardant holes are filled with the dry powder extinguishing agent, so that the rapid fire extinguishment can be realized under the condition of external open fire, the cable core is protected, the heat-insulating layer made of polytetrafluoroethylene is arranged, good high temperature resistance is provided for the cable, the cable can be suitable for a high-temperature operation environment, the damage of the high temperature to the cable is prevented, the material of the filling layer is modified glass fiber so as to ensure the roundness of the cable, and the twist shape on the surface of the cable in the production and use processes is avoided.

The circuit, the electronic components and the modules are all in the prior art, and can be completely realized by a person skilled in the art, and needless to say, the protection of the utility model does not relate to the improvement of software and a method.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a fire-retardant high temperature resistant cable which characterized in that: including sinle silk (101), filling layer (102), interior inoxidizing coating (103), outer inoxidizing coating (104), insulating layer (105), flame retardant coating (106) and insulating sheath (107), sinle silk (101) are stranded by stranded wire and are formed, sinle silk (101) parcel is in inoxidizing coating (103) inner chamber, just the space department between interior inoxidizing coating (103) inner chamber and sinle silk (101) is provided with filling layer (102), the parcel is in outer inoxidizing coating (104) inner chamber in interior inoxidizing coating (103) outside, the parcel is in insulating layer (105) inner chamber in outer inoxidizing coating (104) outside, the parcel is in flame retardant coating (106) inner chamber in insulating sheath (107) outside parcel.

2. A flame retardant, high temperature resistant cable according to claim 1, wherein: the inner protective layer (103) is provided as an aluminum foil.

3. A flame retardant, high temperature resistant cable according to claim 1, wherein: the outer protective layer (104) is formed by wrapping a plurality of layers of fire-resistant nets, and asbestos fibers are filled between the fire-resistant nets.

4. A flame retardant, high temperature resistant cable according to claim 1, wherein: the material of the filling layer (102) is modified glass fiber.

5. A flame retardant, high temperature resistant cable according to claim 1, wherein: the middle part of the circular ring of the flame retardant layer (106) is uniformly provided with a plurality of flame retardant holes at equal angles, and the flame retardant holes are filled with dry powder extinguishing agent.

6. A flame retardant, high temperature resistant cable according to claim 1, wherein: the heat insulation layer (105) is made of polytetrafluoroethylene.