CN214476581U

CN214476581U - Moisture-proof cable

Info

Publication number: CN214476581U
Application number: CN202120533055.4U
Authority: CN
Inventors: 周仁俊; 郑奥; 汤兴豪
Original assignee: Jiangxi Jiangxian Technology Co ltd
Current assignee: Jiangxi Jiangxian Technology Co ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-10-22
Anticipated expiration: 2031-03-15

Abstract

The utility model relates to a cable manufacture technical field especially relates to a moisture-proof cable, including sinle silk and insulating layer, the sinle silk is equipped with the insulating layer outward, the insulating layer is equipped with the band layer that blocks water outward, it is equipped with the filling layer to block water between band layer and the insulating layer, it is equipped with the tinned copper weaving layer outward to block water the band layer, be equipped with the interior protective layer outward outside the tinned copper weaving layer, be equipped with the layer that absorbs water outward outside the interior protective layer, it is equipped with the outer protective layer outward to absorb water outward, be equipped with the bleeder vent on the outer protective layer, the layer that absorbs water is connected to the bleeder vent. The utility model discloses the moisture resistance of cable has been improved effectively.

Description

Moisture-proof cable

Technical Field

The utility model relates to a cable manufacture technical field especially relates to a dampproofing cable.

Background

Typically a rope-like cable made up of several or groups of conductors (at least two in each group) twisted together, with the conductors of each group being insulated from one another and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation. However, the existing cable has poor moisture resistance and cannot resist moisture well.

Like chinese utility model patent, the grant bulletin number is CN201717022U, and the announcement day is 2010, 07, 19 days, announced a dampproofing cable, its technical scheme's main points are: the moisture absorbent is filled in the moisture absorbent, the moisture absorbent is wrapped outside the moisture absorbent, and the protective layer is wrapped outside the moisture absorbent.

Above-mentioned prior art absorbs moisture through the desiccator, but still wraps up protective layer and band outside the dampproof course, and after external moisture disappeared, the evaporation of moisture in the desiccator has been blockked in protective layer and band for the outer long-term moist dampproof course parcel of electric wire, if ageing appears in inside insulating layer, make inside moisture invade the cable easily.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a moisture-proof cable for the moisture resistance of cable obtains improving.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a moisture-proof cable, includes sinle silk and insulating layer, the sinle silk is equipped with the insulating layer outward, the insulating layer is equipped with the band layer that blocks water outward, it is equipped with the filling layer to block water between band layer and the insulating layer, it is equipped with tin-plated copper weaving layer outward to block water the band layer, be equipped with interior protective layer outward outside the tin-plated copper weaving layer, interior protective layer is equipped with the layer that absorbs water outward, be equipped with the outer protective layer outward outside the layer that absorbs water, be equipped with the bleeder vent on the outer protective layer, the layer that absorbs water is connected to the bleeder vent.

Further, the filling layer is a PP reticular fiber rope.

Furthermore, the tinned copper braided layer is formed by interweaving a first braided layer and a second braided layer, and the braiding density is 75% -85% so as to ensure the compressive strength of the cable.

Furthermore, the inner protection layer is a wear-resistant rubber layer and plays a role in blocking water vapor, so that the wire core is effectively protected from being affected by moisture.

Furthermore, the water absorbing layer is sponge, and the sponge water absorbing layer has stable property and certain buffering capacity besides the circulating water absorbing capacity.

Furthermore, the outer protection layer is a polyolefin insulating sheath layer and has strong aging resistance.

Furthermore, the aperture of the air holes is 0.2-0.5mm, so that moisture can be absorbed by sponge in the water absorption layer and can also be used as air holes for water vapor evaporation.

(III) advantageous effects

The arranged water blocking belt layer and the filling layer are PP reticular fiber ropes, so that the waterproof and moistureproof effects can be realized, and the cable can adapt to underground humid environment; the weight of the tinned copper braided layer is light, so that the compressive strength of the cable can be increased; the arranged inner protective layer is a wear-resistant rubber layer, so that the water vapor is blocked, and the wire core is protected from being affected by moisture; the water absorption layer is sponge, has stable property and certain buffering capacity besides the circulating water absorption capacity; be equipped with and be equipped with the bleeder vent on the outer protective layer, can make moisture absorb outside the layer absorbs water, can also pass through the bleeder vent with the steam in the layer that absorbs water under the effect of heat-conduction when electrically conductive.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the core and the insulating layer of the present invention.

In the figure: 1. the cable comprises a cable core, 2 insulating layers, 3 water-blocking tape layers, 4 filling layers, 5 tinned copper weaving layers, 6 inner protective layers, 7 water-absorbing layers, 8 outer protective layers and 9 air holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, a moisture-proof cable comprises a wire core 1 and an insulating layer 2, wherein the insulating layer 2 is arranged outside the wire core 1, a water-blocking tape layer 3 is arranged outside the insulating layer 2, a filling layer 4 is arranged between the water-blocking tape layer 3 and the insulating layer 2, the filling layer 4 is a PP reticular fiber rope, the water-blocking tape layer 3 and the filling layer 4 are PP reticular fiber ropes, the moisture-proof and waterproof effects can be achieved, the cable can adapt to underground humid environment, a tinned copper braid layer 5 is arranged outside the water-blocking tape layer 3, the tinned copper braid layer 5 is formed by weaving a first braid layer and a second braid layer in a staggered mode, the weaving density is 75% -85%, the compressive strength of the cable is ensured, an inner protective layer 6 is arranged outside the tinned copper braid layer 5, the inner protective layer 6 is a wear-resistant rubber layer, and the wear-resistant rubber layer plays a role in further isolating a water absorption layer 7 from the inner wire core 1, guarantee sinle silk 1 not receive the humidity, internal protection layer 6 is equipped with layer 7 that absorbs water outward, layer 7 that absorbs water is the sponge, and the sponge is except having the circulation ability of absorbing water, and its nature is more stable, and has certain buffer capacity, layer 7 that absorbs water is equipped with outer protective layer 8 outward, outer protective layer 8 is the insulating restrictive coating of polyolefin, be equipped with bleeder vent 9 on the outer protective layer 8, bleeder vent 9 aperture 0.2-0.5mm, layer 7 that absorbs water is connected to bleeder vent 9, and bleeder vent 9 can make moisture in the layer 7 that absorbs water absorb in addition, can also when electrically conductive, under heat-conducting effect, give off through bleeder vent 9 with the steam in the layer 7 that absorbs water.

The specific working principle is as follows: when the cable is in a humid environment, the generated water vapor is absorbed by the water absorption layer 7, the wire core 1 generates heat when the cable is electrified in dry weather, the heat is transferred to the water absorption layer 7 and can conduct heat to sponge in the water absorption layer 7, so that the sponge in the water absorption layer 7 is dried, the water vapor is diffused from the air holes 9, the wire core 1 and the water absorption layer 7 are isolated by the inner protection layer 6, the moisture resistance is improved, and the water blocking belt layer 3 and the filling layer 4 are PP reticular fiber ropes, so that the moisture resistance is further improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a moisture-proof cable, includes sinle silk (1) and insulating layer (2), sinle silk (1) is equipped with insulating layer (2) outward, its characterized in that: insulating layer (2) are equipped with the band layer (3) that blocks water outward, it is equipped with filling layer (4) to block water between band layer (3) and insulating layer (2), it is equipped with tin-plated copper weaving layer (5) to block water band layer (3) outward, tin-plated copper weaving layer (5) are equipped with inner protective layer (6) outward, inner protective layer (6) are equipped with layer (7) that absorb water outward, it is equipped with outer protective layer (8) outward to absorb water layer (7), be equipped with bleeder vent (9) on outer protective layer (8), layer (7) that absorb water is connected in bleeder vent (9).

2. A moisture resistant cable as claimed in claim 1, wherein: the filling layer (4) is a PP reticular fiber rope.

3. A moisture resistant cable as claimed in claim 1, wherein: the tinned copper braided layer (5) is formed by interweaving a first braided layer and a second braided layer, and the braiding density is 75% -85%.

4. A moisture resistant cable as claimed in claim 1, wherein: the inner protection layer (6) is a wear-resistant rubber layer.

5. A moisture resistant cable as claimed in claim 1, wherein: the water absorbing layer (7) is sponge.

6. A moisture resistant cable as claimed in claim 1, wherein: the outer protective layer (8) is a polyolefin insulating sheath layer.

7. A moisture resistant cable as claimed in claim 1, wherein: the aperture of the air holes (9) is 0.2-0.5 mm.