CN207663829U - A kind of New Mineral insulated cable - Google Patents

Abstract

The utility model discloses a kind of New Mineral insulated cables, including cable core, the outside of the cable core is provided with refractory segments and burns layer, side of the refractory segments burning layer far from cable core, which is provided with, is dielectrically separated from fireprotection layer, the side of the fireprotection layer far from refractory segments burning layer that be dielectrically separated from is provided with filled layer, the filled layer is provided with fire-proof and water-proof separation layer far from the side for being dielectrically separated from fireprotection layer, the filled layer is internally provided with inorganic solidified ceramic reinforcing rib, the side of the fire-proof and water-proof separation layer far from filled layer is provided with attachment fastening circular layer, side of the attachment fastening circular layer far from fire-proof and water-proof separation layer is provided with buffer layer.The utility model can fix cable core, and effectively separate cable core and external temperature, play the integrality of protection metallic conductor, protection cable is unimpeded, to ensure that the unobstructed of circuit, enhances the high temperature-proof performance of cable, safe, can find broad application.

Description

A kind of New Mineral insulated cable

Technical field

The utility model is related to technical field of electric wires and cables, specially a kind of New Mineral insulated cable.

Background technology

The fast development of society, especially to the bright requirement with fire protection design of building, the bright high standard with building fire protection It is required that and cable act on an electric energy transmission staple product, also obtained rapidly and effectively developing, the fire prevention of the prior art Cable is mainly made of external sheath layer, metallic conductor and flame retardant coating and flame resistant filler material, although in opposite certain temperature And conducting function may be implemented in degree of catching fire, but the product stability in use of current cable craft technology production is poor, And flameproof effect is not obvious, and largely and on field affects the applicability of cable.

With the increase of demand, the diameter of cable conductor is also increasing in cable, and strong in order to reach insulation and fire resisting Degree and other effects, when installation, are more and more inconvenient, in order to reduce lapping and cost of manufacture, the overwhelming majority in the prior art Cable has and can not have very strong high temperature-proof effect, and security performance is poor, therefore is unfavorable for being widely used.

Utility model content

The purpose of this utility model is to provide a kind of New Mineral insulated cable, it is good to have a high temperature-proof effect, peace The higher advantage of full performance, solves cable high temperature-proof poor performance, the poor problem of security performance.

To achieve the above object, the utility model provides the following technical solutions：A kind of New Mineral insulated cable, packet Cable core is included, the outside of the cable core is provided with refractory segments and burns layer, and the refractory segments burn side of the layer far from cable core and are provided with insulation Fireprotection layer is isolated, the side of the fireprotection layer far from refractory segments burning layer that be dielectrically separated from is provided with filled layer, and the filled layer is separate The side for being dielectrically separated from fireprotection layer is provided with fire-proof and water-proof separation layer, and the filled layer is internally provided with inorganic solidified ceramic Reinforcing rib, the side of the fire-proof and water-proof separation layer far from filled layer are provided with attachment fastening circular layer, and the attachment fastens circular layer Side far from fire-proof and water-proof separation layer is provided with buffer layer, side of the buffer layer far from attachment fastening circular layer be provided with every Thermosphere, side of the thermal insulation layer far from buffer layer are provided with oversheath.

Preferably, the buffer layer is internally provided with accommodating chamber, and the accommodating chamber is internally provided with spring, the bullet The top and bottom of spring are fixedly connected with the inner wall of accommodating chamber.

Preferably, the quantity of the inorganic solidified ceramic reinforcing rib is four, the inorganic solidified ceramic reinforcing rib Side contacted with fireprotection layer is dielectrically separated from, the other side of the inorganic solidified ceramic reinforcing rib connects with fire-proof and water-proof separation layer It touches.

Preferably, the attachment fastens the reinforcer that is internally provided with of circular layer, and the quantity of the reinforcer is less than three.

Preferably, side of the oversheath far from thermal insulation layer is provided with sprayed coating.

Compared with prior art, the beneficial effects of the utility model are as follows：

1, the utility model can protect cable core by the setting that refractory segments burn layer and are dielectrically separated from fireprotection layer, carry The high fire resistance of cable, it is ceramic fireproof heat-barrier material that be dielectrically separated from fireprotection layer, which be high molecular material, for will Cable core is separated with external temperature, is played the role of fire prevention, moisture-proof, heat-insulated and waterproof, can be protected the metallic conductor in cable core Integrality simultaneously plays the role of waterproof, and polymer ceramic chemoprevention fire fire-resistant heat insulating material is made by pressing formula fashion of extrusion, resistance to Fiery section burns layer setting in cable core and between being dielectrically separated from fireprotection layer so that in case of fire, environment temperature reaches -- DEG C when, this is anti- Fire bed starts to be carbonized, refractory segments burn layer and attachment fastening circular layer using double-layer structure spiral winding be arranged, by filled layer with The setting of inorganic solidified ceramic reinforcing rib can fix cable core, and effectively separate cable core and external temperature, play protection metal The integrality of conductor, protection cable is unimpeded, to ensure that the unobstructed of circuit, enhances the high temperature-proof performance of cable, safety Height can find broad application.

2, the inorganic solidified ceramic reinforcing rib of the utility model is inorganic mineral oxide and hydroxide, reinforces filled layer Stability, enhance the warping resistance of cable, buffer protection played the role of to cable by the setting of buffer layer, passes through appearance The setting of chamber and spring received can be absorbed buffer layer by external impact power, reach the function of buffering, sprayed coating is set Oversheath can be protected by setting, and avoid long-term naked be exposed on the external of oversheath from being corroded, the setting of thermal insulation layer is slow for protecting Layer is rushed, avoids buffer layer by hot mastication.

Description of the drawings

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the connection structure schematic cross-sectional view of the utility model accommodating chamber and spring.

In figure：1 cable core, 2 refractory segments burn layer, 3 are dielectrically separated from fireprotection layer, 4 filled layers, 5 fire-proof and water-proof separation layers, 6 inorganic Solidification ceramic reinforcing rib, 7 attachment fastening circular layers, 8 buffer layers, 9 thermal insulation layers, 10 oversheaths, 11 accommodating chambers, 12 springs, 13 add Strong part, 14 sprayed coatings.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 2 are please referred to Fig.1, a kind of New Mineral insulated cable, including cable core 1, the outside of cable core 1 are provided with fire resisting Section burns layer 2, and cable core 1 is twisted by several metallic conductor copper wire outer layers, and every metallic conductor is made of copper free wire, refractory segments Side of the burning layer 2 far from cable core 1, which is provided with, is dielectrically separated from fireprotection layer 3, is dielectrically separated from fireprotection layer 3 burns layer 2 far from refractory segments one Side is provided with filled layer 4, and 4 material of filled layer is ceramic fireproof heat-barrier material, and filled layer 4 is separate to be dielectrically separated from fireprotection layer 3 side is provided with fire-proof and water-proof separation layer 5, and 5 material of fire-proof and water-proof separation layer is silicon halogen-free polyolefin antiultraviolet material, is filled out The inorganic solidified ceramic reinforcing rib 6 that is internally provided with of layer 4 is filled, the quantity of inorganic solidified ceramic reinforcing rib 6 is four, inorganic The side of solidification ceramic reinforcing rib 6 is contacted with fireprotection layer 3 is dielectrically separated from, the other side of inorganic solidified ceramic reinforcing rib 6 and Fire-proof and water-proof separation layer 5 contacts, and inorganic solidified ceramic reinforcing rib 6 is inorganic mineral oxide and hydroxide, reinforces filling The stability of layer 4 enhances the warping resistance of cable, and it is tight that side of the fire-proof and water-proof separation layer 5 far from filled layer 4 is provided with attachment Gu circular layer 7, attachment fastening circular layer 7 is internally provided with reinforcer 13, and the quantity of reinforcer 13 is less than three, attachment fastening circular layer 7 sides far from fire-proof and water-proof separation layer 5 are provided with buffer layer 8, and buffer layer 8 is internally provided with accommodating chamber 11, accommodating chamber 11 Be internally provided with spring 12, the top and bottom of spring 12 are fixedly connected with the inner wall of accommodating chamber 11, pass through buffer layer 8 Setting plays the role of buffer protection to cable, can be to buffer layer 8 by outside by the setting of accommodating chamber 11 and spring 12 Impact force is absorbed, and the function of buffering is reached, and side of the buffer layer 8 far from attachment fastening circular layer 7 is provided with thermal insulation layer 9, every The setting of thermosphere 9 avoids buffer layer 8 by hot mastication, side setting of the thermal insulation layer 9 far from buffer layer 8 for protecting buffer layer 8 There are oversheath 10, side of the oversheath 10 far from thermal insulation layer 9 to be provided with sprayed coating 14, the setting of sprayed coating 14 can be to oversheath 10 are protected, and are avoided long-term naked be exposed on the external of oversheath 10 from being corroded, are burnt layer 2 by refractory segments and be dielectrically separated from fireprotection layer 3 Setting cable core 1 can be protected, improve the fire resistance of cable, be dielectrically separated from fireprotection layer 3 is for high molecular material Ceramic fireproof heat-barrier material plays fire prevention, moisture-proof, heat-insulated and waterproof for separating cable core 1 with external temperature Effect, can protect the integrality of the metallic conductor in cable core 1 and play the role of waterproof, polymer ceramic chemoprevention fire refractory heat-insulating Material is made by pressing formula fashion of extrusion, and refractory segments burn the setting of layer 2 in cable core 1 and between being dielectrically separated from fireprotection layer 3 so that Under fire condition, when environment temperature reaches 650--3000 DEG C, this fireprotection layer starts to be carbonized, and burns layer 2 and attachment dead ring in refractory segments Layer 7 is arranged using double-layer structure spiral winding, by the setting of filled layer 4 and inorganic solidified ceramic reinforcing rib 6, can fix cable Core 1, and effectively separate cable core 1 and external temperature, the integrality of protection metallic conductor is played, protection cable is unimpeded, to protect The unobstructed of circuit has been demonstrate,proved, the high temperature-proof performance of cable is enhanced, it is safe, it can find broad application.

In use, it is high molecular material to be dielectrically separated from fireprotection layer 3, it is ceramic fireproof heat-barrier material, is used for cable Core 1 is separated with external temperature, is played the role of fire prevention, moisture-proof, heat-insulated and waterproof, can be protected the metallic conductor in cable core 1 Integrality simultaneously plays the role of waterproof, and refractory segments are burnt layer 2 and set in cable core 1 and between being dielectrically separated from fireprotection layer 3 so that in fire feelings Under condition, when environment temperature reaches 650--3000 DEG C, this fireprotection layer starts to be carbonized, and is reinforced by filled layer 4 and inorganic solidified ceramic The setting of muscle 6 can fix cable core 1, and effectively separate cable core 1 and external temperature, play the integrality of protection metallic conductor, protect It is unimpeded to protect cable.

In summary：The New Mineral insulated cable burns layer 2 by refractory segments, is dielectrically separated from fireprotection layer 3, filling The cooperation of layer 4, fire-proof and water-proof separation layer 5, inorganic solidified ceramic reinforcing rib 6 and attachment fastening circular layer 7, solves the anti-height of cable Warm poor performance, the poor problem of security performance.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of New Mineral insulated cable, including cable core（1）, it is characterised in that：The cable core（1）Outside be provided with Refractory segments burn layer（2）, the refractory segments burning layer（2）Far from cable core（1）Side be provided with and be dielectrically separated from fireprotection layer（3）, described It is dielectrically separated from fireprotection layer（3）Layer is burnt far from refractory segments（2）Side be provided with filled layer（4）, the filled layer（4）Far from insulation Fireprotection layer is isolated（3）Side be provided with fire-proof and water-proof separation layer（5）, the filled layer（4）Be internally provided with it is inorganic solidified Ceramic reinforcing rib（6）, the fire-proof and water-proof separation layer（5）Far from filled layer（4）Side be provided with attachment fastening circular layer （7）, the attachment fastening circular layer（7）Far from fire-proof and water-proof separation layer（5）Side be provided with buffer layer（8）, the buffer layer （8）Far from attachment fastening circular layer（7）Side be provided with thermal insulation layer（9）, the thermal insulation layer（9）Far from buffer layer（8）Side It is provided with oversheath（10）.

2. a kind of New Mineral insulated cable according to claim 1, it is characterised in that：The buffer layer（8）'s It is internally provided with accommodating chamber（11）, the accommodating chamber（11）Be internally provided with spring（12）, the spring（12）Top and Bottom is and accommodating chamber（11）Inner wall be fixedly connected.

3. a kind of New Mineral insulated cable according to claim 1, it is characterised in that：The inorganic solidified ceramics Change reinforcing rib（6）Quantity be four, the inorganic solidified ceramic reinforcing rib（6）Side and be dielectrically separated from fireprotection layer（3） Contact, the inorganic solidified ceramic reinforcing rib（6）The other side and fire-proof and water-proof separation layer（5）Contact.

4. a kind of New Mineral insulated cable according to claim 1, it is characterised in that：The attachment fastens circular layer （7）Be internally provided with reinforcer（13）, the reinforcer（13）Quantity be less than three.

5. a kind of New Mineral insulated cable according to claim 1, it is characterised in that：The oversheath（10）Far From thermal insulation layer（9）Side be provided with sprayed coating（14）.