Cable for new energy charging pile

Abstract

The utility model relates to a cable for a new energy charging pile, and belongs to the field of cables, the cable comprises a cable core, the cable core comprises a signal wire harness and a power wire harness, the outer side of the signal wire harness is sequentially wrapped with a wrapping layer, a shielding layer and an inner protection layer from inside to outside, and the signal wire harness comprises two stranded signal wires; the signal wire comprises a copper wire and an elastic polyvinyl chloride layer arranged on the outer side of the copper wire, the power wire harness comprises a power line and an insulating layer wrapping the outer side of the power line, at least two limiting strips are fixedly connected in the cable core, a limiting groove is formed between every two adjacent limiting strips, and the power wire harness is embedded in the limiting grooves. According to the invention, the limiting strips can limit the power wire harness, thereby facilitating the installation of the power wire harness, improving the internal supporting strength of the cable core, and reducing the possibility of damage to the cable core.

Description

Technical Field

[0001] The present application relates to the field of cables, and in particular to a cable for a new energy charging pile. Background Art

[0002] New energy charging pile cables are cables that connect electric vehicles and charging piles and are used to transmit electrical energy to complete the charging process. Since charging piles are frequently dragged and moved during use and are exposed to the outdoor environment for a long time, they are susceptible to damage and corrosion from factors such as car crushing, sunlight, air oxidation, wet water environment, and acid-base compounds. Therefore, higher requirements are placed on the performance indicators of charging pile cables such as oxidation resistance, weather resistance, wear resistance, and resistance to mechanical external forces.

[0003] The above-mentioned related technologies have the following defects: since the charging pile cable is exposed to the outdoor environment for a long time, it is easily damaged by external influences, which reduces the service life of the charging pile cable. Utility Model Content

[0004] In order to improve the above problems, the present application provides a cable for a new energy charging pile.

[0005] The present application provides a new energy charging pile cable adopting the following technical solution:

[0006] A cable for a new energy charging pile comprises a cable core, the cable core comprises a signal wiring harness and a power wiring harness, the outer side of the signal wiring harness is wrapped with a sheath, a shielding layer and an inner protective layer in sequence from the inside to the outside, the signal wiring harness comprises two twisted signal wires, the signal wire comprises a copper wire and an elastic polyvinyl chloride layer arranged on the outer side of the copper wire, the power wiring harness comprises a power wire and an insulating layer wrapped on the outer side of the power wire, a limit strip is fixedly connected in the cable core, at least two limit strips are arranged, a limit groove is formed between two adjacent limit strips, and the limit groove is for the power wiring harness to be embedded.

[0007] By adopting the above technical scheme, the wrapping layer, shielding layer and inner protective layer can protect the signal wiring harness, and the insulating layer can protect the power line, reducing the possibility of damage to the signal wiring harness and the power line due to external influences; the limit strip can limit the power wiring harness, which is convenient for the installation of the power wiring harness, and improves the supporting strength inside the cable core, reducing the possibility of damage to the cable core, thereby increasing the service life of the charging pile cable.

[0008] Preferably, a limiting arc surface is provided on a side of the limiting strip away from the inner wall of the cable core, and the limiting arc surface is in contact with the surface of the signal harness.

[0009] By adopting the above technical solution, due to the setting of the limiting arc surface, the limiting arc surface can limit the signal wiring harness, which is convenient for the installation of the signal wiring harness and improves the stability of the signal wiring harness.

[0010] Preferably, a limiting plate is fixedly connected to the groove wall of the limiting groove, and the limiting plate is in contact with the power harness.

[0011] By adopting the above technical solution, the limiting plate can limit the power harness in the limiting groove, further improving the stability of the power harness and reducing the possibility of deviation of the power harness.

[0012] Preferably, a connecting plate is provided on the limiting bar, one side of the connecting plate is fixedly connected to one limiting bar, and the other side of the connecting plate is fixedly connected to another limiting bar.

[0013] By adopting the above technical solution, the connecting plate can reinforce the two limit bars, thereby improving the stability of the limit bars, thereby further improving the supporting strength inside the cable core and reducing the possibility of damage to the cable core.

[0014] Preferably, the wrapping layer is a polyester tape layer.

[0015] By adopting the above technical solution, the polyester belt layer is light in texture and can protect the signal line, and the polyester belt layer has high durability, thereby extending the service life of the signal line.

[0016] Preferably, the shielding layer is a bare copper wire braided layer.

[0017] By adopting the above technical solution, the bare copper wire braided layer has good conductivity and electromagnetic shielding performance, which can guide external electromagnetic interference to the ground wire, so that the signal passing through the signal line is not disturbed.

[0018] Preferably, the inner protective layer is a chlorinated polyethylene layer.

[0019] By adopting the above technical solution, the chlorinated polyethylene layer has good flexibility and toughness, protecting the signal line from damage by machinery, water, moisture, chemicals, light, etc.

[0020] Preferably, the insulating layer is a silicone rubber layer.

[0021] By adopting the above technical solution, the silicone rubber layer is resistant to high and low temperatures, and also has the functions of corrosion resistance, moisture resistance and flame resistance, thereby increasing the service life of the insulation layer.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Through the setting of the wrapping layer, shielding layer, inner sheath and limiting strip, the wrapping layer, shielding layer and inner sheath can protect the signal harness, and the insulating layer can protect the power line, reducing the possibility of damage to the signal harness and the power line caused by external influences; the limiting strip can limit the power harness, which is convenient for the installation of the power harness, and improves the supporting strength inside the cable core, reducing the possibility of damage to the cable core, thereby increasing the service life of the charging pile cable;

[0024] 2. By setting the limiting plate, the limiting plate can limit the power harness in the limiting groove, further improving the stability of the power harness and reducing the possibility of deviation of the power harness.

[0025] 3. Through the setting of the connecting plate, the connecting plate can reinforce the two limit strips, thereby improving the stability of the limit strips, thereby further improving the supporting strength inside the cable core and reducing the possibility of damage to the cable core. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the internal structure of the cable used for the new energy charging pile in the embodiment of the present application.

[0027] Explanation of the accompanying drawings: 1. cable core; 2. signal wire harness; 21. wrapping layer; 22. shielding layer; 23. inner sheath; 24. signal wire; 241. copper wire; 242. elastic polyvinyl chloride layer; 3. power wire harness; 31. electric wire; 32. insulating layer; 4. limit strip; 41. limit groove; 42. limit arc surface; 43. limit plate; 44. connecting plate. DETAILED DESCRIPTION

[0028] In order to make the purpose, features, and advantages of the invention of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] The following is combined with Figure 1 This application is described in further detail.

[0030] The present application embodiment discloses a cable for a new energy charging pile, such as Figure 1 As shown, it includes a cable core 1, and the cable core 1 includes a signal wire harness 2 and a power wire harness 3. In the embodiment of the present application, the number of the signal wire harness 2 is one, the number of the power wire harness 3 is three, and the axis of the signal wire harness 2 coincides with the axis of the cable core 1.

[0031] like Figure 1As shown, the signal harness 2 includes two twisted signal wires 24, and the signal wire 24 includes a copper wire 241 and an elastic polyvinyl chloride layer 242 arranged on the outside of the copper wire 241, and the elastic polyvinyl chloride layer 242 is acid-resistant, alkali-resistant and wear-resistant. The outer side of the signal harness 2 is wrapped with a wrapping layer 21, a shielding layer 22 and an inner sheath 23 from the inside to the outside. The wrapping layer 21 is a polyester tape layer, which is light in texture and has high durability. It can protect the signal wire 24 and extend the service life of the signal wire 24. The shielding layer 22 is a bare copper wire braided layer, which has good conductivity and electromagnetic shielding performance, and can guide external electromagnetic interference to the ground wire, so that the signal passing through the signal wire 24 is not interfered. The inner sheath 23 is a chlorinated polyethylene layer, which has good flexibility and toughness, and protects the signal wire 24 from mechanical, moisture, moisture, chemicals, light, etc. damage, thereby improving the service life of the signal wire 24.

[0032] like Figure 1 As shown, the power harness 3 includes a power line and an insulating layer 32 wrapped around the outside of the power line. The insulating layer 32 is a silicone rubber layer. The silicone rubber layer is resistant to high and low temperatures, and is also corrosion-resistant, moisture-proof and flame-resistant, which reduces the possibility of damage to the power line due to external influences and increases the service life of the insulating layer 32.

[0033] like Figure 1 As shown, the cable core 1 is fixedly connected with a limit strip 4. In the embodiment of the present application, the number of limit strips 4 is six, and two limit strips 4 are set as a group. A limit groove 41 is formed between a group of limit strips 4, and the limit groove 41 is for the power harness 3 to be embedded. The limit plate 43 is fixedly connected to the groove wall of the limit groove 41, and the limit plate 43 is in contact with the power harness 3. The limit plate 43 can improve the structural strength of the limit strips 4 on both sides. When the power harness 3 needs to be installed, the power harness 3 is moved so that the power harness 3 is embedded in the limit groove 41 and in contact with the limit plate 43. The limit groove 41 and the limit plate 43 can limit the power harness 3, so that the power harness 3 is located and fixed in the cable core 1, which improves the stability of the power harness 3 and extends the service life of the power harness 3.

[0034] like Figure 1 As shown, a connection plate 44 is provided on the limit strip 4, and the connection plate 44 is located between two groups of limit strips 4. In the embodiment of the present application, the number of the connection plates 44 is three, and one side of the connection plate 44 is fixedly connected to a limit strip 4 in one group, and the other side is fixedly connected to a limit strip 4 in another group. The connection plate 44 can reinforce the space between the two groups of limit strips 4, further improve the structural strength of the limit strips 4, thereby improving the overall structural strength of the cable core 1, and the limit strips 4 can protect the power harness 3, reduce the possibility of damage to the power harness 3 due to external influences, thereby extending the service life of the power harness 3.

[0035] like Figure 1 As shown, a limiting arc surface 42 is provided on one side of the limiting strip 4 away from the inside of the cable core 1, and the limiting arc surface 42 is in contact with the surface of the signal harness 2. When the signal harness 2 needs to be installed, the signal harness 2 is moved so that the limiting arc surface 42 is in contact with the surface of the signal harness 2, and the limiting arc surface 42 can limit the signal harness 2, so as to facilitate the stable installation of the signal harness 2.

[0036] The implementation principle of a cable for a new energy charging pile in the embodiment of the present application is:

[0037] When the power harness 3 needs to be installed, the power harness 3 is moved so that the power harness 3 is embedded in the limiting groove 41. At this time, the limiting plate 43 and the surface of the power harness 3 fit together. The setting of the limiting groove 41 facilitates the installation of the power harness 3. The setting of the limiting plate 43 makes the power harness 3 relatively fixed in the limiting groove 41, thereby facilitating the stable installation of the power harness 3, reducing the possibility of the power harness 3 being offset, reducing the possibility of damage to the power harness 3, and extending the service life of the power harness 3. When the signal harness 2 needs to be installed, the signal harness 2 is moved so that the surface of the signal harness 2 fits with the limiting arc surface 42. The limiting arc surface 42 can limit the signal harness 2, reducing the possibility of the signal harness 2 being offset, and protecting the signal harness 2, reducing the possibility of damage to the signal harness 2, and extending the service life of the signal harness 2.

[0038] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A cable for a new energy charging pile, characterized in that: The invention comprises a cable core (1), wherein the cable core (1) comprises a signal wire harness (2) and a power wire harness (3), wherein the outer side of the signal wire harness (2) is sequentially wrapped with a wrapping layer (21), a shielding layer (22) and an inner protective layer (23) from the inside to the outside, wherein the signal wire harness (2) comprises two twisted signal wires (24), wherein the signal wire (24) comprises a copper wire (241) and an elastic polyvinyl chloride layer (242) arranged on the outer side of the copper wire (241), wherein the power wire harness (3) comprises a power wire and an insulating layer (32) wrapped on the outer side of the power wire, wherein a limit strip (4) is fixedly connected inside the cable core (1), wherein at least two limit strips (4) are arranged, and a limit groove (41) is formed between two adjacent limit strips (4), wherein the limit groove (41) is provided for the power wire harness (3) to be embedded.

2. A cable for a new energy charging pile according to claim 1, characterized in that: A limiting arc surface (42) is provided on a side of the limiting strip (4) away from the inner wall of the cable core (1), and the limiting arc surface (42) is in contact with the surface of the signal harness (2).

3. A cable for a new energy charging pile according to claim 1, characterized in that: A limiting plate (43) is fixedly connected to the groove wall of the limiting groove (41), and the limiting plate (43) is fitted with the power harness (3).

4. A cable for a new energy charging pile according to claim 1, characterized in that: A connecting plate (44) is provided on the limiting strip (4); one side of the connecting plate (44) is fixedly connected to one limiting strip (4), and the other side of the connecting plate (44) is fixedly connected to another limiting strip (4).

5. A cable for a new energy charging pile according to claim 1, characterized in that: The wrapping layer (21) is a polyester tape layer.

6. A cable for a new energy charging pile according to claim 1, characterized in that: The shielding layer (22) is a bare copper wire braided layer.

7. A cable for a new energy charging pile according to claim 1, characterized in that: The inner protective layer (23) is a chlorinated polyethylene layer.

8. A cable for a new energy charging pile according to claim 1, characterized in that: The insulating layer (32) is a silicone rubber layer.

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