Low-temperature tensile charging pile power transmission cable

Abstract

The utility model discloses a low-temperature tensile charging pile power transmission cable, which comprises a non-woven fabric layer, the non-woven fabric layer is coated with a power line, a ground wire, a control line, a temperature feed optical cable and a communication line, a flame-retardant layer is filled between the non-woven fabric and the coated cable, the outer side of the non-woven fabric is coated with a shielding layer, and the outer side of the shielding layer is coated with a flame-retardant layer. The outer side of the shielding layer is coated with a tensile layer, the outer side of the tensile layer is coated with an outer sheath, reinforcing ropes are uniformly distributed in the outer sheath, the outer sheath comprises a sheath main body and annular bulges, and a plurality of annular bulges are arranged on the outer side of the sheath main body at equal intervals. According to the utility model, the outer side of the shielding layer is coated with the tensile layer, and the reinforcing ropes are uniformly distributed in the outer sheath, so that the tensile effect of the cable is improved through the dual functions of the tensile layer and the reinforcing ropes, and the problem that the cable sheath is damaged in the cable dragging process is solved; the annular protrusions can reduce friction between the sheath body and the ground to a certain extent, and the wear resistance of the cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging pile power transmission cables, in particular to a low-temperature, tensile-resistant charging pile power transmission cable. Background Art

[0002] With the increase of electric vehicles, many cities in China have built electric vehicle charging stations. Cables, as an indispensable component of car charging piles, have also received extensive attention from the cable industry. Most of the existing charging pile cables use ordinary cables with weak tensile strength. During the dragging process, the cables are easily damaged, resulting in cable failure.

[0003] The existing publication number CN113223764B discloses a new type of low-temperature resistant and tensile-resistant charging pile cable. By adopting a reinforced core in the center of the cable, it can ensure that the cable will not cause serious damage when it is subjected to external forces. By adding an insulation layer for insulation, the cable can adapt to the cold weather at high altitudes and improve the application range of the cable. By adding a tensile layer and a rubber protective layer, the cable has strong tensile resistance.

[0004] Although the existing technology uses a reinforcing core to enhance the tensile strength of the cable to a certain extent, its outer sheath does not have a good tensile strength effect. During the actual construction and dragging process, the cable sheath is easily damaged. For this reason, we propose a low-temperature tensile-resistant charging pile power transmission cable. Utility Model Content

[0005] The purpose of the utility model is to provide a low-temperature, tensile-resistant charging pile power transmission cable to solve the problem that although the use of a reinforcing core in the prior art enhances the tensile resistance of the cable to a certain extent, the outer sheath thereof does not have a good tensile resistance effect, and the cable sheath is easily damaged during actual construction and dragging.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-temperature, tensile-resistant charging pile power transmission cable, comprising a non-woven fabric layer, the non-woven fabric layer is coated with a power line, a ground line, a control line, a temperature feeding optical cable and a communication line, a flame retardant layer is filled between the non-woven fabric and the wrapped cable, the outside of the non-woven fabric is coated with a shielding layer, the outside of the shielding layer is coated with a tensile layer, the outside of the tensile layer is coated with an outer sheath, and reinforcing ropes are evenly distributed inside the outer sheath. Through the dual effects of the tensile layer and the reinforcing rope, the tensile resistance of the cable is improved, and the problem of damage to the cable sheath during cable dragging is solved. The outer sheath comprises a sheath body and annular protrusions, and a plurality of annular protrusions are arranged at equal intervals on the outside of the sheath body. The annular protrusions can reduce the friction between the sheath body and the ground to a certain extent, thereby improving the wear resistance of the cable.

[0007] Preferably, the sheath body and the annular protrusions are of an integral structure. The outer sheath is made of a TPU sheath, which has good low-temperature resistance.

[0008] Preferably, the shielding layer is made of a metal wire braided layer; the tensile layer is made of a fiber wire braided layer, which improves the tensile performance of the cable; the low-temperature resistant layer is made of a silicone layer, which further improves the low-temperature resistance of the cable.

[0009] Preferably, the reinforcing rope is a flexible metal rope or a fiber wire braided rope.

[0010] Preferably, the temperature-fed optical cable is composed of an optical fiber, a tight buffer tube, an armor layer, and a sheath layer, and the optical fiber, the tight buffer tube, the armor layer, and the sheath layer are arranged in sequence from inside to outside.

[0011] Preferably, the power line, the ground wire, and the control line are all composed of a conductor and an insulating layer, and the insulating layer is coated on the outside of the conductor.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By covering a tensile layer outside the shielding layer and evenly distributing reinforcing ropes inside the outer sheath, the anti-pulling effect of the cable is improved through the dual action of the tensile layer and the reinforcing ropes, solving the problem that the cable sheath is damaged during the cable dragging process.

[0014] 2. A plurality of annular protrusions are arranged at equal intervals on the outside of the sheath body, and the annular protrusions can reduce the friction between the sheath body and the ground to a certain extent, improving the wear resistance of the cable.

[0015] 3. The outer sheath is made of a TPU sheath, which has good low-temperature resistance; the low-temperature resistant layer is made of a silicone layer, which further improves the low-temperature resistance of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the outer sheath of the present utility model.

[0019] In the figure: 1, power cord; 2, ground wire; 3, control wire; 4, temperature-feeding optical cable; 5, communication wire; 6, non-woven fabric layer; 7, shielding layer; 8, tensile layer; 9, low-temperature resistant layer; 10, outer sheath; 11, reinforcing rope; 101, sheath main body; 102, annular protrusion. Specific embodiments

[0020] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model.

[0021] Please refer to Figure 1-2 , in an embodiment of the present utility model, a low-temperature resistant and tensile charging pile power transmission cable includes a non-woven fabric layer 6, the non-woven fabric layer 6 covers a power cord 1, a ground wire 2, a control wire 3, a temperature-feeding optical cable 4 and a communication wire 5, a flame-retardant layer is filled between the non-woven fabric and the wrapped cables, a shielding layer 7 is covered outside the non-woven fabric, a tensile layer 8 is covered outside the shielding layer 7, an outer sheath 10 is covered outside the tensile layer 8, and reinforcing ropes 11 are evenly distributed inside the outer sheath 10. By covering a tensile layer outside the shielding layer and evenly distributing reinforcing ropes inside the outer sheath, through the dual effects of the tensile layer and the reinforcing ropes, the anti-pulling effect of the cable is improved, and the problem of damage to the cable sheath during the dragging process of the cable is solved; the outer sheath 10 includes a sheath main body 101 and an annular protrusion 102, and a plurality of annular protrusions 102 are equidistantly arranged outside the sheath main body 101; the sheath main body 101 and the annular protrusion 102 are of an integral structure, and the outer sheath 10 adopts a TPU sheath with good low-temperature resistance; a plurality of annular protrusions are equidistantly arranged outside the sheath main body, and the annular protrusions can reduce the friction between the sheath main body and the ground to a certain extent and improve the wear resistance of the cable.

[0022] Such as Figure 1; The shielding layer 7 is made of a metal wire braided layer; the tensile layer 8 is made of a fiber wire braided layer, and the fiber wire braided layer improves the tensile performance of the cable; the low-temperature resistant layer 9 is made of a silicone layer, and the low-temperature resistant layer 9 further improves the low-temperature resistant performance of the cable; the strengthening rope 11 is made of a flexible metal rope or a fiber wire braided rope; through the dual effects of the tensile layer 8 and the strengthening rope 11, the anti-pulling effect of the cable is improved, and the problem of damage to the cable sheath during the dragging process of the cable is solved; the temperature-fed optical cable 4 is composed of an optical fiber, a tight tube, an armored layer, and a sheath layer, and the optical fiber, the tight tube, the armored layer, and the sheath layer are arranged in sequence from the inside to the outside; the power line 1, the ground line 2, and the control line 3 are all composed of a conductor and an insulating layer, and the insulating layer is coated on the outside of the conductor.

[0023] The working principle of the present utility model is as follows: during use, the power line 1, the ground line 2, the control line 3, the temperature-fed optical cable 4, and the communication line 5 are connected to the corresponding cables of the new energy charging pile; by covering the tensile layer 8 outside the shielding layer 7, the strengthening ropes 11 are evenly distributed in the outer sheath 10, and through the dual effects of the tensile layer 8 and the strengthening ropes 11, the anti-pulling effect of the cable is improved, and the problem of damage to the cable sheath during the dragging process of the cable is solved; a plurality of annular protrusions 102 are arranged at equal intervals on the outside of the sheath main body 101, and the annular protrusions 102 can reduce the friction between the sheath main body 101 and the ground to a certain extent and improve the wear resistance of the cable.

[0024] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A low-temperature tensile-resistant charging pile power transmission cable, comprising a non-woven fabric layer (6) and a low-temperature resistant layer (9), characterized in that: The non-woven fabric layer (6) is coated with a power line (1), a ground line (2), a control line (3), a temperature-feeding optical cable (4) and a communication line (5); a flame-retardant layer is filled between the non-woven fabric and the coated cables; the outer side of the non-woven fabric is coated with a shielding layer (7); the outer side of the shielding layer (7) is coated with a tensile layer (8); the outer side of the tensile layer (8) is coated with an outer sheath (10); reinforcement ropes (11) are evenly distributed inside the outer sheath (10); the outer sheath (10) comprises a sheath body (101) and annular protrusions (102); a plurality of annular protrusions (102) are evenly spaced outside the sheath body (101).

2. A low-temperature tensile-resistant charging pile power transmission cable according to claim 1, characterized in that: The sheath body (101) and the annular protrusion (102) are an integrated structure, and the outer sheath (10) is a TPU sheath.

3. A low-temperature tensile-resistant charging pile power transmission cable according to claim 1, characterized in that: The shielding layer (7) is made of a metal wire braided layer; the tensile layer (8) is made of a fiber wire braided layer; and the low temperature resistant layer (9) is made of a silicone layer.

4. A low-temperature tensile-resistant charging pile power transmission cable according to claim 1, characterized in that: The reinforcing rope (11) is a flexible metal rope or a fiber braided rope.

5. A low-temperature tensile-resistant charging pile power transmission cable according to claim 1, characterized in that: The temperature-feeding optical cable (4) consists of an optical fiber, a tight casing, an armor layer, and a sheath layer, and the optical fiber, the tight casing, the armor layer, and the sheath layer are arranged in sequence from the inside to the outside.

6. A low-temperature tensile-resistant charging pile power transmission cable according to claim 1, characterized in that: The power line (1), the ground line (2) and the control line (3) are all composed of a conductor and an insulating layer, and the insulating layer is coated on the outside of the conductor.

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