CN205692585U - Flexible new-energy automobile charging pile cable - Google Patents

Abstract

A charging pile cable for flexible new energy vehicles, including multiple main wire cores and two signal control wire cores, each signal control wire core includes two paired signal control wire conductors, and the outer parts of the two signal control wire conductors are sequentially The first aluminum-plastic composite tape shielding layer, the tinned copper wire shielding layer, the second aluminum-plastic composite tape shielding layer and the inner sheath are wrapped around, and the signal control line conductor is provided with a fiber reinforced core. The charging pile cable for flexible new energy vehicles of the utility model has good flexibility and high reliability. The shielding layer is made of three-layer composite shielding of aluminum-plastic composite tape, tinned copper wire, and aluminum-plastic composite tape, which enhances the shielding and anti-interference of the cable. Adding a fiber reinforced core to the cable improves the tensile strength and flexibility of the cable, and uses high-elastic thermoplastic elastomers as the insulation layer, inner sheath and sheath layer to protect the internal structure of the cable while increasing the flexibility of the cable sex.

Description

Charging pile cables for flexible new energy vehicles

technical field

The utility model relates to the technical field of cable manufacturing, in particular to a charging pile cable for a flexible new energy vehicle.

Background technique

The rapid development of the new energy automobile industry has driven the rapid growth of demand for charging piles and other supporting facilities in the industrial chain, and the market demand is huge. Due to the hard cables of many charging pile cables on the market, the local bending radius of the connection between the charging gun and the cable is too large, which affects the connection between the charging gun and the charging interface in the car to a certain extent, and the user experience is poor. .

Utility model content

The purpose of the utility model is to overcome the defects of the prior art, and provide a flexible new energy vehicle charging pile cable with good flexibility, high reliability, and fast connection between the charging gun and the charging interface.

In order to achieve the above object, the utility model adopts the following technical solutions:

A charging pile cable for flexible new energy vehicles, including multiple main wire cores and two signal control wire cores 2, each signal control wire core 2 includes two paired signal control wire conductors 20, two signal control wire conductors The outside of 20 is wrapped with a first aluminum-plastic composite tape shielding layer 21, a tinned copper wire shielding layer 22, a second aluminum-plastic composite tape shielding layer 23 and an inner sheath 24, and the signal control line conductor 20 is provided with a fiber Reinforcing core 202 .

Further, the signal control line conductor 20 includes a bare copper conductor 200 and a signal control line insulation layer 201 covered on the bare copper conductor 200, and the bare copper conductor 200 is composed of a bare copper wire with a hexagonal cross-sectional shape The bare copper conductor 200 is bundled and wrapped in the left direction, and the fiber reinforced core 202 is set inside the bare copper conductor 200 .

Further, the signal control line insulation layer 201 is a high-elasticity thermoplastic elastomer insulation layer, and the fiber-reinforced core 202 is a Kevlar fiber-reinforced core arranged at the center of the bare copper conductor 200 .

Further, the main wire cores include two first main wire cores 1a, a second main wire core 1b and two auxiliary wire cores 1c, and the cross-sectional area of the first main wire core 1a is larger than that of the second main wire core 1b Area, the cross-sectional area of the second main core 1 b is larger than the cross-sectional area of the signal control core 2 .

Further, two first main wire cores 1a and one second main wire core 1b are arranged in a triangle, two auxiliary wire cores 1c are respectively arranged on one side of the two first main wire cores 1a, and second main wire cores 1b are arranged on two sides. Between the auxiliary wire cores 1c, the two signal control wire cores 2 are arranged on the other side of the first main wire core 1a.

Further, the main core includes a main conductor 10 and a main core insulation layer 11 covered on the main conductor 10, and the main conductor 10 is made of bare copper wires with a hexagonal cross-section through layered compression twisting As a result, the beaming direction and wrapping direction of the main conductor 10 are leftward.

Further, the main core insulation layer 11 is a high elastic thermoplastic elastomer insulation layer.

Further, the main wire core and the signal control wire core 2 are cabled and wrapped successively with a non-woven fabric wrapping layer 3 and a sheath layer 4, and the sheath layer 4 and the inner sheath layer 24 are respectively high elastic thermoplastic Elastomeric protective layer.

Further, fillers are provided in the gaps between the non-woven fabric wrapping layer 3 and the main wire core and the signal control wire core 2 .

Further, the wrapping directions of the first aluminum-plastic composite tape shielding layer 21 and the second aluminum-plastic composite tape shielding layer 23 are leftward.

The charging pile cable for flexible new energy vehicles of the utility model has good flexibility and high reliability. The shielding layer is made of three-layer composite shielding of aluminum-plastic composite tape, tinned copper wire, and aluminum-plastic composite tape, which enhances the shielding and anti-interference of the cable. Adding a fiber reinforced core to the cable improves the tensile strength and flexibility of the cable, and uses high-elastic thermoplastic elastomers as the insulation layer, inner sheath and sheath layer to protect the internal structure of the cable while increasing the flexibility of the cable sex.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a schematic structural view of the signal control wire core of the present invention.

In the figure: 1a-first main wire core, 1b-second main wire core, 1c-auxiliary wire core, 10-main conductor, 11-main wire core insulation layer, 2-signal control wire core, 20-signal control wire conductor, 200 -bare copper conductor, 201-signal control line insulation layer, 202-fiber reinforced core, 21-first aluminum-plastic composite tape shielding layer, 22-tinned copper wire shielding layer, 23-second aluminum-plastic composite tape shielding layer, 24-Inner sheath, 3-Non-woven wrapping layer, 4-Sheath layer.

detailed description

The embodiments of the present invention are given below in conjunction with accompanying drawings 1 and 2, and the specific implementation of the charging pile cable for flexible new energy vehicles of the present invention is further described. The charging pile cable for flexible new energy vehicles of the present invention is not limited to the description of the following embodiments.

As shown in Figure 1, the charging pile cable for flexible new energy vehicles of the present utility model includes a plurality of main cores and two signal control cores 2, and each signal control core 2 includes two paired signal control wire conductors 20. The outer parts of the two signal control line conductors 20 are sequentially wrapped with a first aluminum-plastic composite tape shielding layer 21, a tinned copper wire shielding layer 22, a second aluminum-plastic composite tape shielding layer 23, and an inner sheath 24, and the signal A fiber reinforced core 202 is arranged inside the control line conductor 20 . The charging pile cable for flexible new energy vehicles of the utility model adopts a three-layer shielding structure to improve the anti-electromagnetic interference performance of the cable, and adding a fiber reinforcement core to the conductor enhances the tensile performance of the cable and improves the flexibility of the cable.

The main wire cores in Fig. 1 include two first main wire cores 1a, a second main wire core 1b and two auxiliary wire cores 1c, and the cross-sectional area of the first main wire core 1a is larger than the cross-sectional area of the second main wire core 1b , the cross-sectional area of the second main core 1b is greater than the cross-sectional area of the signal control core 2, and the cross-sectional area of the signal control core 2 is greater than the cross-sectional area of the auxiliary core 1c. Preferably, two first main wire cores 1a and one second main wire core 1b are arranged in a triangle, two auxiliary wire cores 1c are respectively arranged on one side of the first main wire core 1a, and the second main wire core 1b is set Between the two auxiliary cores 1c, two signal control cores 2 are arranged on the other side of the first main core 1a. Specifically, the main conductor 10 and the main core insulation layer 11 form the main core, and the bare copper wire with a hexagonal cross-sectional shape is used to form the main conductor 10 through layered compact twisting. All are left-handed, and the conductor resistance after stranding meets the requirements of the GB/T 3956-2008 standard. Preferably, the utility model adopts the 6th type of bare copper conductor, and the 6th type of conductor refers to the 6th type of conductor described in GB/T 3956-2008 "Cable Conductor", which has good flexibility Sex, increasing the bending performance of the core. The outer side of the main conductor 10 is covered with a high-elastic thermoplastic elastomer as the main core insulation layer 11. The high-elastic thermoplastic elastomer has high elasticity, high strength, high rebound rate and excellent processing performance. It is environmentally friendly and pollution-free, ensuring excellent insulation performance of the cable At the same time, it makes the cable more flexible and improves the production efficiency.

The signal control line conductor 20 in FIG. 2 includes a bare copper conductor 200 and a signal control line insulation layer 201 covered on the bare copper conductor 200. The sixth type of bare copper wire with a hexagonal cross-sectional shape is layered and compacted. The bare copper conductor 200 is made by stranding, the stranding direction and wrapping direction of the bare copper conductor 200 are leftward, and the conductor resistance after stranding meets the requirements of the GB/T 3956-2008 standard. Further, the bare copper conductor 200 is provided with a fiber-reinforced core 202 , and the bare copper wires are evenly distributed around the fiber-reinforced core 202 . Preferably, the bare copper wire is twisted around the fiber-reinforced core 202 and covered outside the fiber-reinforced core 202 , and the fiber-reinforced core 202 can also be twisted together with the bare copper wire to form the bare copper conductor 200 . Specifically, the fiber-reinforced core 202 is a Kevlar fiber-reinforced core arranged at the center of the bare copper conductor 200, which increases the flexibility of the cable and improves the tensile strength at the same time. The bare copper conductor 200 is extruded with a signal control line insulation layer 201, and the signal control line insulation layer 201 is a high elastic thermoplastic elastomer. Two signal control line conductors 20 are twisted with each other, and the twisted signal control line conductor 20 is provided with three layers of combined shielding, including an aluminum-plastic composite tape wrapped around the signal control line conductor 20 as the first aluminum-plastic composite tape shielding Layer 21, braiding tinned copper wires outside the first aluminum-plastic composite tape shielding layer 21 as the tinned copper wire shielding layer 22, wrapping aluminum-plastic composite tape outside the tinned copper wire shielding layer 22 as the second aluminum-plastic composite tape The shielding layer 23, the winding direction of the first aluminum-plastic composite tape shielding layer 21 and the second aluminum-plastic composite tape shielding layer 23 are all leftwards, and tinned copper wire shielding and aluminum-plastic composite tape shielding are used to ensure that the signal control line The core has excellent shielding and anti-interference performance, the braiding of tinned copper wire increases the bending resistance and tensile resistance of the core, and the use of aluminum-plastic composite tape reduces the production cost of the cable. An inner protective layer 24 is also provided outside the second aluminum-plastic composite tape shielding layer 23, and a high-elastic thermoplastic elastomer is also used as the inner protective layer 24, which ensures electrical insulation performance and improves flexibility at the same time.

The main wire core and the signal control wire core 2 are cabled and wrapped with a non-woven fabric wrapping layer 3 and a sheath layer 4 in sequence. Specifically, the main core and the signal control core 2 constitute a cable core, and the cable core is wrapped with a non-woven fabric wrapping layer 3, and the wrapping direction is left, so that the inner structure of the cable core is more compact. Preferably, fillers are provided in the gap between the non-woven fabric wrapping layer 3 and the main core and the signal control core 2 to make the surface of the cable core more smooth and orderly, which is beneficial to the stability of the internal structure. The non-woven fabric wrapping layer 3 is extruded with a sheath layer 4, and the sheath layer 4 is extruded from a high-elastic thermoplastic elastomer. The excellent elasticity of the high-elastic thermoplastic elastomer improves the bending performance of the cable , The high strength provides protection for the internal structure of the cable, making the cable durable. The direction of the conductor bundles, double stranding and the outer wrapping of the cable are all left-handed, and the same direction setting avoids the reverse stress during the bending process of the cable, and comprehensively improves the bending performance of the cable.

Referring to Fig. 1 below, the manufacturing process of the aluminum alloy core medium-voltage variable frequency refractory cable of the present invention will be described.

First, the bare copper wire is layered and tightly twisted to form the main conductor 10. The bundled direction of the main conductor 10 and the direction of re-twisting are both leftward, and the conductor 10 is extruded with a high-elastic thermoplastic elastomer as the main core insulation layer 11. , the conductor 10 and the main core insulating layer 11 constitute the main core. Kevlar fiber bundles are used as the fiber-reinforced core 202, and bare copper wires are twisted around the fiber-reinforced core 202 to obtain a bare copper conductor 200 with a fiber-reinforced core 202, and an insulating layer 201 of signal control lines is extruded outside the bare copper conductor 200 to obtain Signal control line conductor 20, two signal control line conductors 20 are twisted and then wrapped with aluminum-plastic composite tape on the outside as the first aluminum-plastic composite tape shielding layer 21, the wrapping direction is left; in the first aluminum-plastic composite tape Tinned copper wire is braided outside the shielding layer 21 as the tinned copper wire shielding layer 22, and the aluminum-plastic composite tape is wrapped outside the tinned copper wire shielding layer 22 as the second aluminum-plastic composite tape shielding layer 23, and the wrapping direction is still To the left, then extrude a high-elastic thermoplastic elastomer as the inner sheath 24 outside to obtain the signal control core 2 . The main wire core and the signal control wire core 2 constitute the cable core. When forming a cable, the non-woven fabric is wrapped around the cable core as the non-woven fabric wrapping layer 3, and the wrapping direction is leftward. At the same time, the non-woven fabric wrapping layer 3 and the Filling material is placed in the gap between the main wire core and the signal control wire core 2 . The sheath layer 4 is extruded on the outside of the non-woven wrapping layer 3 .

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For a person of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or substitutions can also be made, which should be regarded as belonging to the protection scope of the utility model.

Claims (10)

1. A charging pile cable for flexible new energy vehicles, comprising multiple main wire cores and two signal control wire cores (2), characterized in that: each signal control wire core (2) includes two twisted signal control wires line conductors (20), the exteriors of the two signal control line conductors (20) are successively wrapped with a first aluminum-plastic composite tape shielding layer (21), a tinned copper wire shielding layer (22), a second aluminum-plastic composite tape shielding layer layer (23) and inner sheath (24), and the signal control line conductor (20) is provided with a fiber reinforced core (202). 2. The charging pile cable for flexible new energy vehicles according to claim 1, characterized in that: the signal control line conductor (20) includes a bare copper conductor (200) and is coated on the bare copper conductor (200). The signal control line insulation layer (201), the bare copper conductor (200) is made of bare copper wires with a cross-sectional shape of hexagon through layered tight twisting, and the bundle direction of the bare copper conductor (200) and the winding direction is leftward, and the fiber reinforced core (202) is arranged in the bare copper conductor (200). 3. The flexible new energy vehicle charging pile cable according to claim 2, characterized in that: the signal control line insulation layer (201) is a high-elasticity thermoplastic elastomer insulation layer, and the fiber reinforced core (202 ) is a Kevlar fiber reinforced core located at the center of the bare copper conductor (200). 4. The charging pile cable for flexible new energy vehicles according to claim 1, characterized in that: the main cores include two first main cores (1a), one second main core (1b) and two Auxiliary wire core (1c), the cross-sectional area of the first main wire core (1a) is larger than the cross-sectional area of the second main wire core (1b), and the cross-sectional area of the second main wire core (1b) is larger than the signal control wire core (2) The cross-sectional area. 5. The charging pile cable for flexible new energy vehicles according to claim 4, characterized in that: two first main cores (1a) and one second main core (1b) are arranged in a triangle, and two auxiliary cores (1c) are respectively arranged on one side of the two first main wire cores (1a), the second main wire core (1b) is arranged between the two auxiliary wire cores (1c), and the two signal control wire cores (2 ) is arranged on the other side of the first main core (1a). 6. The charging pile cable for flexible new energy vehicles according to claim 1, characterized in that: the main core includes a main conductor (10) and a main core insulation layer (11) coated on the main conductor (10) ), the main conductor (10) is made of bare copper wire with hexagonal cross-section through layered compaction and twisting, and the beam direction and wrapping direction of the main conductor (10) are leftward. 7. The charging pile cable for flexible new energy vehicles according to claim 6, characterized in that: the main core insulation layer (11) is a high-elasticity thermoplastic elastomer insulation layer. 8. The charging pile cable for flexible new energy vehicles according to claim 1, characterized in that: the main wire core and the signal control wire core (2) are cabled and wrapped with non-woven fabric wrapping layers (3 ) and the sheath layer (4), the described sheath layer (4) and the inner sheath layer (24) are respectively high elastic thermoplastic elastomer protective layers. 9. The charging pile cable for flexible new energy vehicles according to claim 8, characterized in that: in the gap between the non-woven fabric wrapping layer (3) and the main core and signal control core (2) With padding. 10. The charging pile cable for flexible new energy vehicles according to claim 1, characterized in that: the winding of the first aluminum-plastic composite tape shielding layer (21) and the second aluminum-plastic composite tape shielding layer (23) The package direction is left.