CN217740225U

CN217740225U - Bending-resistant low-smoke halogen-free power cable for new energy vehicle charging device

Info

Publication number: CN217740225U
Application number: CN202222041743.6U
Authority: CN
Inventors: 周杏芬; 何泽球; 何宇勋; 张斌; 刘喜; 周君
Original assignee: Wuxi Linde Cable Co ltd
Current assignee: Wuxi Linde Cable Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-11-04
Anticipated expiration: 2032-08-04

Abstract

The utility model relates to the technical field of wires and cables, particularly to new energy vehicle charging device is with resistant crooked low smoke and zero halogen power cable, including power line core, control sinle silk, signal sinle silk, ground connection sinle silk, filling layer, shielding layer, fire-retardant layer and oversheath, the oversheath includes from interior to exterior in proper order crowded package in the first restrictive coating and the second restrictive coating outside the fire-retardant layer, the inboard of first restrictive coating is equipped with first pressure resistance area, the inboard of second restrictive coating is equipped with second pressure resistance area; through setting up double-deck oversheath, the inboard of every outer sheath all sets up the steel wire and dredges the resistance to compression area of winding formation, and its outer resistance to compression area can play wear-resisting effect to outer sheath, avoids the inlayer sheath to take place wearing and tearing, ensures the insulating nature of sheath, and the resistance to compression area common effect of ectonexine can play solid shape effect to the cable core of inboard, avoids loose deformation under the condition that the cable core was rolled, makes the whole effect that presents wear-resisting resistance to compression of cable.

Description

Bending-resistant low-smoke halogen-free power cable for new energy vehicle charging device

Technical Field

The utility model relates to a wire and cable technical field particularly relates to new energy vehicle charging device is with resistant crooked low smoke and zero halogen power cable.

Background

The cable for the electric automobile conduction charging system is used for charging and connecting an electric automobile and a power supply, is one of key equipment of the electric automobile conduction charging system, has direct influence on safe and reliable operation of the electric automobile due to the advantages and disadvantages of the conduction cable, particularly quickly charges at present, quickly charges even direct current more than 350KW under the premise that super charge gradually becomes a mainstream charging system, and provides new requirements for the safety, the service life and the weight of the charging cable.

Because electric automobile fills electric pile and sets up on ground parking area, charging station or high-speed along the line on a large scale, fill electric pile cable and follow and fill electric pile setting in open air environment, subaerial, the cable is after long-time the use, receive and pull repeatedly, under the muzzle such as the vehicle rolls, the outside sheath can take place ageing to pull the condition that friction or vehicle rolled with ground for a long time at the sheath, the insulating properties of the sheath that leads to descends or the local damage, causes the danger of electric leakage easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a new energy vehicle charging device is with resistant crooked low smoke and zero halogen power cable, include:

the cable comprises a power wire core, a control wire core and a signal wire core which are tangent to each other and are mutually twisted, wherein an insulating layer is extruded outside the power wire core, an insulating shielding layer is extruded outside the control wire core and the signal wire core, and single grounding wire cores are wound outside the power wire core and the signal wire core;

the filling layer is filled among the power wire core, the control wire core, the signal wire core and the grounding wire core, and is wrapped and fixed together by the wrapping layer to form a circular cross section;

the shielding layer is coated on the outer side of the wrapping layer;

the fire retardant layer is wrapped on the outer side of the shielding layer;

the outer sheath is extruded on the outer side of the fire retardant layer;

the outer sheath comprises a first sheath layer and a second sheath layer, wherein the first sheath layer and the second sheath layer are sequentially wrapped in an extruding mode from inside to outside, the inner side of the first sheath layer is provided with a first anti-compression belt, the first sheath layer is wrapped in an extruding mode, the outer side of the first anti-compression belt is wrapped on the fire retardant layer, the inner side of the second sheath layer is provided with a second anti-compression belt, the second sheath layer is wrapped in an extruding mode, and the outer sides of the first sheath layer and the second anti-compression belt are wrapped in the extruding mode.

Preferably, first pressure resistance area is including lapping the first steel wire more than a set of in the back-fire relief layer outside, second pressure resistance area is including lapping the second steel wire more than a set of in the first restrictive coating outside, just the diameter of first steel wire is greater than the diameter of second steel wire.

Preferably, each set of the first steel wires is provided with 5 to 7 first steel wires.

Preferably, each set of the second steel wires is provided with 5 to 7 second steel wires.

Preferably, the first compression resistant belt comprises three groups of first steel wires wrapped outside the fire retardant layer, and the second compression resistant belt comprises twelve groups of second steel wires wrapped outside the first sheath layer.

Preferably, the lapping direction of the first pressure resistant belt is opposite to the lapping direction of the second pressure resistant belt.

Preferably, the wrapping angles of the first and second pressure resistant belts are set to be 45-60 degrees.

Preferably, the diameter of the first pressure resistant belt is set to be 1/2 of the thickness of the first sheath layer, and the diameter of the second pressure resistant belt is set to be 1/4-1/3 of the thickness of the second sheath layer.

Preferably, the thickness of the first sheath layer is equal to the thickness of the second sheath layer.

Preferably, the first sheath layer and the second sheath layer each comprise a crosslinked polyethylene sheath.

Compared with the prior art, the utility model discloses resistant crooked low smoke and zero halogen power cable's apparent advantage lies in:

the utility model discloses a resistant crooked low smoke and zero halogen power cable is through setting up double-deck oversheath, the inboard of every layer of outer sheath all sets up the resistance to compression area that the steel wire dredged around formation, its outer resistance to compression area can play wear-resisting effect to outer sheath, avoid the inlayer sheath to take place wearing and tearing, the insulating nature of guarantee sheath, the resistance to compression area common effect of ectonexine, can play solid shape effect to the cable core of inboard, avoid loose deformation under the condition that the cable core was rolled, make the whole effect that presents wear-resisting resistance to compression of cable.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings.

Fig. 1 is the utility model discloses new energy vehicle charging device is with resistant crooked low smoke and zero halogen power cable's spatial structure sketch map shown in the embodiment.

Fig. 2 is the embodiment of the utility model discloses new energy vehicle charging device is with resistant crooked low smoke and zero halogen power cable's section structure sketch map.

Fig. 3 is a perspective view of another view angle of the bending-resistant low-smoke halogen-free power cable for the new energy vehicle charging device in the embodiment of the present invention.

Fig. 4 is a schematic view of a layer structure of a bending-resistant low-smoke halogen-free power cable for a new energy vehicle charging device in an embodiment of the present invention.

Detailed Description

For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

Fill electric pile often in the use to at present and pull the condition that friction and car rolled on subaerial, long-time back of using, the oversheath can appear wearing and tearing, the local condition of breaking or loosing to because fill electric pile cable often expose the sheath ageing with higher speed under the sunshine, under soaking or humid weather, steam permeates the cable body through the defect position on sheath surface, bring safe risk for the cable, from this, the utility model aims at providing a be fit for using in the open air to frequently pull, under the condition that rolls, still keep the sheath to have the fastening nature of better insulating nature and cable, improve the security that the cable used for a long time.

Combine fig. 1 and fig. 4 to show, the utility model provides a fill electric pile cable, including two liang tangent and the electric power sinle silk 1 of transposition each other, control sinle silk 2 and signal sinle silk 3, wherein, electric power sinle silk 1's conductor part adopts many annealing copper conductor transposition formation, the outside of conductor is the crowded package insulating layer all, provide the electric power transmission effect, control sinle silk 2, signal sinle silk 3's sinle silk part all adopts the area insulated conductor transposition formation of transposition, the outside adopts double-deck crowded package of crowded mode altogether to be insulated, the shielding layer, electric power sinle silk 1 and signal sinle silk 3's the outside is around having single earth connection sinle silk 4, earth connection core 4 sets up to the outside cladding insulating layer of single conductor, mainly play the ground connection effect.

Further, the filling layer 5 adopts low smoke and zero halogen flame retardant rope or glass fiber rope, fills between power core 1, control core 2, signal sinle silk 3 and earth connection core 4 to being wrapped the package together around the covering 6 and being circular cross section, wherein adopt non-woven fabrics or glass fiber cloth around the covering 6, mainly used is with the cable core solid form, makes the cable after the stranding whole more roundly.

Furthermore, the shielding layer 7 is coated on the outer side of the wrapping layer 6, and the fire retardant layer 8 is wrapped on the outer side of the shielding layer 7.

Specifically, shielding layer 7 adopts copper mesh or tinned copper net to the mode cladding of weaving is in the outside around covering 6, mainly plays electromagnetic shield's effect, avoids outside electromagnetic signal to influence the signal transmission of inside control sinle silk 2, signal sinle silk 3, and back-fire relief layer 8 adopts the mica tape, has good high temperature resistance and fire resistance, avoids the cable to catch fire under the short circuit condition.

As shown in connection with fig. 1-3, the outer jacket 9 is extruded over the fire barrier layer 8.

Wherein, oversheath 9 includes from interior to exterior in proper order crowded package first restrictive coating 91 and the second restrictive coating 92 in the fire retardant layer 8 outside, the inboard of first restrictive coating 91 is equipped with to dredge and presses area 93 at the first anti-pressure in the 8 outsides of fire retardant layer, the crowded package in fire retardant layer 8 of first restrictive coating 91 is pressed the outside of area 93 at first anti-pressure, the inboard of second restrictive coating 92 is equipped with to dredge and presses area 94 at the second anti-pressure in the first restrictive coating 91 outside, the crowded package in first restrictive coating 91 of second restrictive coating 92, the outside of second anti-pressure area 94.

In a specific embodiment, the thickness of the first sheath layer 91 is equal to that of the second sheath layer 92, and the first sheath layer 91 and the second sheath layer 92 both adopt crosslinked polyethylene sheaths which are subjected to crosslinking treatment, so that the heat resistance, oil resistance and chemical corrosion resistance of the sheaths are enhanced, the physical and aging properties are improved, and the cable is widely applicable to charging pile cables.

So, because the setting on two restrictive coating, after crackle or damaged defect appear through wearing and tearing when outside sheath, outside steam still can not pass through the first restrictive coating 91 of inlayer, make oversheath 9 whole still have good insulating nature, and cooperate the second anti-pressure area 94 that sets up in the second restrictive coating 92, the second is resisted and is pressed area 94 and can play and hinder the further possibility that causes the damage to first restrictive coating 91 of sharp-pointed object or other hard objects, can protect first restrictive coating 91 not damaged.

Further, first pressure resistant area 93 is including the first steel wire more than a set of around the package in the back-fire relief layer 8 outside, and second pressure resistant area 94 is including the second steel wire more than a set of around the package in the first restrictive coating 91 outside, and the diameter of first steel wire is greater than the diameter of second steel wire.

In an alternative embodiment, each set of first steel wires is provided with 5 to 7 steel wires, and each set of second steel wires is provided with 5 to 7 steel wires.

So, dredge around the first pressure resistant area 93 in the back-fire relief layer 8 outside and dredge around the second pressure resistant area 94 in the first restrictive coating 91 outside all can play the restriction effect to the cable core, make the cable core under the condition that is rolled, the loose condition can not appear to can outwards extrude the sheath, make the sheath be difficult to deform under the extrusion condition.

In a preferred embodiment, the first anti-pressure belt 93 comprises three groups of first steel wires wrapped outside the fire barrier layer 8, each group of first steel wires is arranged to be 6, and the second anti-pressure belt 94 comprises twelve groups of second steel wires wrapped outside the first sheath layer 91, each group of second steel wires is arranged to be 6.

Further, the wrapping direction of the first pressure resistant belt 93 is opposite to that of the second pressure resistant belt 94, the wrapping angles of the first pressure resistant belt 93 and the second pressure resistant belt 94 are set to be 60 degrees, the diameter of the first pressure resistant belt 93 is set to be 1/2 of the thickness of the first sheath layer 91, and the diameter of the second pressure resistant belt 94 is set to be 1/3 of the thickness of the second sheath layer 92.

So, first resistance pressure area 93 that the first steel wire that the inlayer set up was constituteed is great relatively to the radial support intensity of cable, can guarantee that a plurality of sinle silks in the cable core can not be loose under the state of rolling, the second resistance pressure area 94 axial position that outer second steel wire is constituteed distributes more, on the one hand with first resistance pressure area 93 together play the compressive action, on the other hand can avoid outside sharp-pointed object to pierce through second restrictive coating 92 and reach first restrictive coating 91, and can prevent to continue wearing and tearing to the inboard, play the guard action to first restrictive coating 91 on the inlayer, after crackle or damaged defect appear through wearing and tearing in outer second restrictive coating 92, outside steam still can not pass through first restrictive coating 91 on the inlayer, make oversheath 9 whole still have good insulating nature.

Combine above embodiment, through setting up double-deck sheath, the inboard of every layer of sheath all sets up the resistance to compression area that the steel wire dredged around formation, and its outer resistance to compression area can play wear-resisting effect to outer sheath, avoids the inlayer sheath to take place wearing and tearing, ensures the insulating nature of sheath, and the resistance to compression area combined action on ectonexine can play the solid shape effect to the cable core of inboard, avoids loose deformation under the condition that the cable core was rolled, makes the whole effect that presents wear-resisting resistance to compression of cable.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. The present invention is well known in the art and can be modified and decorated without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention is subject to the claims.

Claims

1. The utility model provides a new energy vehicle charging device is with resistant crooked low smoke and zero halogen power cable which characterized in that includes:

the power cable comprises a power cable core (1), a control cable core (2) and a signal cable core (3), wherein the power cable core (1), the control cable core and the signal cable core (3) are tangent to each other in pairs and are mutually twisted, and a single grounding cable core (4) is wound on the outer sides of the power cable core (1) and the signal cable core (3);

the filling layer (5) is filled among the power wire core (1), the control wire core (2), the signal wire core (3) and the grounding wire core (4), and is wrapped and fixed by the wrapping layer (6) to form a circular section;

the shielding layer (7) is coated on the outer side of the wrapping layer (6);

the fire retardant layer (8) is wrapped on the outer side of the shielding layer (7);

the outer sheath (9) is extruded on the outer side of the fire retardant layer (8);

wherein, oversheath (9) are including from interior to exterior in proper order crowded package first restrictive coating (91) and second restrictive coating (92) in back-fire relief layer (8) outside, the inboard of first restrictive coating (91) is equipped with to dredge around first anti-pressure area (93) in back-fire relief layer (8) outside, first restrictive coating (91) are crowded package is in the outside of back-fire relief layer (8) and first anti-pressure area (93), the inboard of second restrictive coating (92) is equipped with to dredge around second anti-pressure area (94) in first restrictive coating (91) outside, crowded package of second restrictive coating (92) is in the outside of first restrictive coating (91), second anti-pressure area (94).

2. The bending-resistant low-smoke zero-halogen power cable for the new energy vehicle charging device is characterized in that the first pressure resistant belt (93) comprises more than one group of first steel wires wrapped outside the fire retardant layer (8), the second pressure resistant belt (94) comprises more than one group of second steel wires wrapped outside the first sheath layer (91), and the diameter of the first steel wires is larger than that of the second steel wires.

3. The bending-resistant low-smoke zero-halogen power cable for the new energy vehicle charging device according to claim 2, wherein 5-7 first steel wires are arranged in each group.

4. The bending-resistant low-smoke zero-halogen power cable for the new energy vehicle charging device according to claim 2, wherein 5-7 second steel wires are arranged in each group.

5. The bending-resistant low-smoke zero-halogen power cable for the new energy vehicle charging device as claimed in claim 1, wherein the first pressure resistant belt (93) comprises three groups of first steel wires wrapped outside the fire retardant layer (8), and the second pressure resistant belt (94) comprises twelve groups of second steel wires wrapped outside the first sheath layer (91).

6. The bending-resistant low-smoke zero-halogen power cable for the new energy vehicle charging device according to any one of claims 1 to 5, characterized in that the wrapping direction of the first voltage-resistant belt (93) is opposite to the wrapping direction of the second voltage-resistant belt (94).

7. The bending-resistant low-smoke zero-halogen power cable for the new energy vehicle charging device according to any one of claims 1 to 5, wherein wrapping angles of the first voltage-resistant belt (93) and the second voltage-resistant belt (94) are set to be 45-60 degrees.

8. The bending-resistant low-smoke zero-halogen power cable for the new energy vehicle charging device according to claim 1, characterized in that the diameter of the first pressure-resistant belt (93) is set to be 1/2 of the thickness of the first sheath layer (91), and the diameter of the second pressure-resistant belt (94) is set to be 1/4-1/3 of the thickness of the second sheath layer (92).

9. The bending-resistant low-smoke halogen-free power cable for the new energy vehicle charging device according to claim 1, characterized in that the thickness of the first sheath layer (91) is equal to the thickness of the second sheath layer (92).

10. The bending-resistant low-smoke zero-halogen power cable for the new energy vehicle charging device according to claim 1, wherein the first sheath layer (91) and the second sheath layer (92) both comprise a crosslinked polyethylene sheath.