CN216014921U

CN216014921U - High-low voltage crosslinked cable with high fire resistance

Info

Publication number: CN216014921U
Application number: CN202122001820.0U
Authority: CN
Inventors: 傅继达; 傅锦双; 马洪萍
Original assignee: ZHONGCE CABLE GROUP CO Ltd
Current assignee: ZHONGCE CABLE GROUP CO Ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-03-11
Anticipated expiration: 2031-08-24

Abstract

The utility model provides a high-low voltage crosslinked cable with strong fire resistance, which comprises a cable outer covering layer, a heat insulating layer, a filling layer, a fireproof pressure-resistant layer, a cable bracket and a cable core, wherein the cable is sequentially arranged into the outer covering layer, the heat insulating layer, the filling layer, the fireproof pressure-resistant layer, the cable bracket and the cable core from outside to inside, the center of the cable bracket is provided with a fixing body, a plurality of support lines in a shape like a Chinese character 'pin' are extended from the fixing body, a conductor structure is arranged between the support lines, a plurality of heat insulating cushion blocks are arranged in the pressure-resistant heat insulating layer, a plurality of heat dissipation holes are arranged on the heat insulating cushion blocks and are of square structures, a plurality of convex edges are also arranged in the heat dissipation holes, a fixing bulge is arranged in the middle of each heat insulating cushion block, the heat dissipation holes are symmetrically distributed at two sides of a fixing shaft, fixing holes are arranged in the middle of the fixing shaft, and are connected with the inner wall of the pressure-resistant heat insulating layer through connecting pieces in the fixing holes, the compression-resistant heat insulation layer has the functions of supporting compression resistance and heat dissipation and flow guide.

Description

High-low voltage crosslinked cable with high fire resistance

Technical Field

The utility model relates to the technical field of cable equipment, in particular to a high-low voltage crosslinked cable with strong fire resistance.

Background

Electrical wire products for transmitting power, transferring information, and implementing electromagnetic energy conversion are called wire cables. The product only containing metal conductor and the product with metal conductor, light protective layer and light protective layer (cotton yarn braided layer, glass fiber braided layer, plastic, rubber, etc.) are usually coated on the conductor, the insulated wire with simple structure, small external diameter and small voltage and current is called electric wire, and the product with complex structure and large section is called cable. The wire and cable products are applied to different occasions, so the performance requirements are various and very wide, wherein the mechanical performance refers to the tensile strength, the thermal performance refers to the temperature resistance grade and the working temperature of the product, the heating and heat dissipation characteristics of the wire and cable for power transmission and the like have extremely high requirements, and the common compression-resistant and heat-insulating performance design of the wire and cable is still required to be improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a high-low voltage crosslinked cable with strong fire resistance, which comprises a cable outer covering layer, a heat insulation layer, a filling layer, a fireproof pressure-resistant layer, a cable support and a cable core, wherein the cable outer covering layer, the heat insulation layer, the filling layer, the fireproof pressure-resistant layer, the cable support and the cable core are sequentially arranged from outside to inside, the center of the cable support is provided with a fixing body, a plurality of personal-shaped supporting lines extend out of the fixing body, a conductor structure is arranged between the supporting lines, a plurality of heat insulation cushion blocks are arranged in the pressure-resistant heat insulation layer, and the pressure-resistant heat insulation layer has the functions of supporting and resisting pressure and radiating and guiding.

As an improvement of the utility model, the heat insulation cushion block is provided with a plurality of heat dissipation holes, the heat dissipation holes are of a square structure, a plurality of convex edges are further arranged inside the heat dissipation holes, the middle part of the heat insulation cushion block is provided with a fixing bulge, the fixing bulge is convenient to contact with the compression-resistant heat insulation layer to play a role in supporting and fixing, the heat dissipation holes are symmetrically distributed at two sides of the fixing bulge, the middle of the fixing bulge is provided with a fixing hole, the fixing hole is connected with the inner wall of the compression-resistant heat insulation layer through a connecting piece inside the fixing hole, and the heat insulation cushion block can be fixed inside the compression-resistant heat insulation layer in a common connection mode.

As an improvement of the utility model, the heat dissipation sticking layer is arranged in the heat dissipation holes, the flame-retardant insulating sticker is selected as the heat dissipation sticking layer, the convex edges in the heat dissipation holes are convenient for the flame-retardant insulating sticker to be adhered, and the heat dissipation holes have the function of air diversion to a certain extent.

As an improvement of the utility model, the pressure-resistant heat-insulating layer is provided with a plurality of fine air holes, and the fine air holes on the pressure-resistant heat-insulating layer can release hot air in the conductor to avoid overhigh temperature near the conductor.

As an improvement of the utility model, the fixing body is provided with a plurality of air holes, and the air holes are arranged on the fixing body to facilitate the internal air circulation and play a role in heat dissipation.

As an improvement of the utility model, the filling layer is internally provided with fireproof filling, and the conventional and common fireproof filling is adopted.

As an improvement of the utility model, the fireproof filler is heat-conducting silica gel.

The utility model has the beneficial effects that:

1) the outer cladding layer, the heat insulation layer, the filling layer, the fireproof pressure-resistant layer and the cable support are sequentially arranged from outside to inside, and the fireproof and heat insulation performance inside the cable is integrally improved.

2) Through setting up on the thermal-insulated cushion, it has a plurality of louvres, the louvre is square structure, and the louvre is inside still to have a plurality of beads, the middle part of thermal-insulated cushion has a fixed arch, and the louvre symmetric distribution sets up the fixed orifices in the middle of the fixed arch in the both sides position of fixed axle, is connected with resistance to compression insulating layer inner wall through the inside connecting piece of fixed orifices, has played the fixed and thermal-insulated effect of support inside the cable.

Drawings

Fig. 1 is a schematic view of the internal structure of the cable according to the present invention.

FIG. 2 is a schematic view of the heat insulation mat block according to the present invention.

List of reference numerals: the cable comprises a cable outer covering 100, a heat insulation layer 101, a filling layer 102, a fireproof pressure-resistant layer 103, a heat insulation cushion block 105, a cable support 106, a fixing body 107, a conductor structure 108, heat-conducting silica gel 109, a fixing hole 110, a heat dissipation hole 111 and a convex rib 112.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the utility model and not as limiting the scope of the utility model.

Referring to fig. 1 to 2, the high-low voltage crosslinked cable with high fire resistance provided by the utility model comprises a cable outer covering 100, a heat insulating layer 101, a filling layer 102, a fireproof pressure-resistant layer 103, a cable support 106 and a cable core, wherein the cable is sequentially arranged from outside to inside into the outer covering, the heat insulating layer 101, the filling layer 102, the fireproof pressure-resistant layer 103, the cable support 106 and the cable core, a fixing body 107 is arranged in the center of the cable support 106, a plurality of support lines shaped like a Chinese character 'ren' extend from the fixing body 107, a conductor structure 108 is arranged between the support lines, a plurality of heat-insulating cushion blocks 105 are arranged inside the pressure-resistant heat insulating layer 101, and the pressure-resistant heat insulating layer 101 has the functions of supporting pressure resistance and heat dissipation and diversion. The heat insulation cushion block 105 is provided with a plurality of heat dissipation holes 111, the heat dissipation holes 111 are of a square structure, a plurality of convex ribs 112 are further arranged inside the heat dissipation holes 111, a fixing protrusion is arranged in the middle of the heat insulation cushion block 105, the fixing protrusion is in contact with the pressure-resistant heat insulation layer 101 to support and fix the heat insulation layer, the heat dissipation holes 111 are symmetrically distributed on two sides of the fixing protrusion, fixing holes 110 are formed in the middle of the fixing protrusion, the fixing holes 110 are connected with the inner wall of the pressure-resistant heat insulation layer 101 through connecting pieces inside the fixing holes 110, and the heat insulation cushion block 105 can be fixed inside the pressure-resistant heat insulation layer 101 in a common connection mode. The inside heat dissipation sticker layer that has still arranged of louvre 111, fire-retardant insulating sticker is chooseed for use on the heat dissipation sticker layer, and the bead 112 inside louvre 111 is convenient for let fire-retardant insulating sticker adhere to better, has the effect of air water conservancy diversion simultaneously to a certain extent. The pressure-resistant heat insulation layer 101 is provided with a plurality of fine air holes, and the fine air holes in the pressure-resistant heat insulation layer 101 can release hot air in the conductor, so that the overhigh temperature near the conductor is avoided. The fixing body 107 is provided with a plurality of air holes, and the air holes arranged on the fixing body 107 also have the function of facilitating the circulation of internal air and playing a role of heat dissipation. The filling layer 102 has fireproof filler inside, and conventional fireproof filler is adopted. The fireproof filler is heat-conducting silica gel 109.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various modifications can be made to the embodiments described in the foregoing embodiments, or some or all of the technical features of the embodiments can be equivalently replaced, and the modifications or the replacements do not make the essence of the corresponding technical solutions depart from the scope of the embodiments of the present invention.

Claims

1. The utility model provides a high low pressure crosslinked cable that fire resistance is strong, a serial communication port, the cable includes cable surrounding layer (100), insulating layer (101), filling layer (102), fire prevention resist compression layer (103), cable support (106) and cable core, the cable sets gradually to surrounding layer, insulating layer (101), filling layer (102), fire prevention resist compression layer (103), cable support (106) and cable core from outside to inside, cable support (106) center has a fixed body (107), fixed body (107) extend the support lines of a plurality of individual font, install conductor structure (108) between the support lines, a plurality of thermal-insulated cushion (105) have been installed to resistance compression insulating layer (101) inside.

2. The high-voltage and low-voltage crosslinked cable with high fire resistance as claimed in claim 1, wherein the heat insulating pad block (105) is provided with a plurality of heat dissipation holes (111), the heat dissipation holes (111) are of a square structure, a plurality of ribs (112) are further arranged inside the heat dissipation holes (111), a fixing protrusion is arranged in the middle of the heat insulating pad block (105), the heat dissipation holes (111) are symmetrically distributed at two sides of a fixing shaft, a fixing hole (110) is arranged in the middle of the fixing shaft, and the fixing hole (110) is connected with the inner wall of the pressure-resistant heat insulating layer (101) through a connecting piece inside the fixing hole (110).

3. The high-voltage and low-voltage crosslinked cable with high fire resistance as claimed in claim 2, wherein a heat dissipation coating is further disposed inside the heat dissipation hole (111).

4. The high-voltage and low-voltage crosslinked cable with high fire resistance as claimed in claim 2, wherein the pressure-resistant heat insulation layer (101) is provided with a plurality of fine air holes.

5. The high and low voltage crosslinked cable with high fire resistance as claimed in claim 1, wherein the fixing body (107) has a plurality of air holes.

6. The high-voltage and low-voltage cross-linked cable with strong fire resistance as claimed in claim 1, wherein the filling layer (102) is internally provided with a fireproof filler.

7. The high-voltage and low-voltage cross-linked cable with high fire resistance as claimed in claim 6, wherein the fireproof filler is heat-conducting silica gel (109).