CN215680172U - Fill electric pile with flexible fire-retardant ceramic cable - Google Patents

Abstract

The utility model provides a flexible flame-retardant ceramic cable for a charging pile, which comprises: the cable comprises a lead group and an outer coating layer, wherein the outer coating layer comprises a mineral substance filling layer, a reinforcing band layer and an outer sheath layer which are sequentially arranged from inside to outside, the lead group is arranged in the mineral substance filling layer, and a plurality of polyolefin baffles are arranged on the inner wall of the reinforcing band layer at intervals.

Description

Fill electric pile with flexible fire-retardant ceramic cable

Technical Field

The utility model relates to the field of charging cables, in particular to a flexible flame-retardant ceramic cable for a charging pile.

Background

With the research and development and production of new energy electric vehicles, electric vehicles gradually enter the market and are used by the public in China. Since the charging cable of the electric vehicle is generally installed in the charging pile in the outdoor places such as parking lots, highway service areas and the like, and is easily corroded by sunlight or oil stains, and often subjected to dragging, the cable must have good flexibility, wear resistance and corrosion resistance, and in addition, in consideration of charging safety and fire resistance, the cable must also be heat-resistant, flame-retardant and have good insulating property.

Among the prior art, charging cable's structure is by the oversheath in proper order within the outer, reinforcement band layer, filling layer and monomer wire, this type of cable is when using, the mineral substance in its filling layer easily flows naturally in the cable, lead to the uneven distribution, the influence is to the holistic guard action of wire group, and the mineral substance is when cable somewhere is gathered, the compliance that the cable was located is relatively poor, reduce the experience when people used and feel, in addition, the flame retardant coating structure of monomer wire is mostly six layers of mica tape and directly winds the package on the conductor, the resistant high temperature ablation performance of the resistance of cable is relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the prior art, the utility model provides a flexible flame-retardant ceramic cable for a charging pile.

The flexible flame-retardant ceramic cable for the charging pile comprises the following structures:

the wire group sets up in the mineral substance filling layer, the interval is provided with a plurality of polyolefin baffle on the inner wall of reinforcement band layer.

Furthermore, the wire group comprises a plurality of first single wires, each first single wire comprises a metal wire bundle, a fire-resistant layer is wrapped outside the metal wire bundle, and each fire-resistant layer comprises a first transverse wrapping mica tape layer, a second transverse wrapping mica tape layer, a longitudinal wrapping mica tape layer and a ceramic silicon rubber insulating layer which are sequentially arranged from inside to outside.

Preferably, the wire group further comprises a plurality of second single wires, each second single wire also comprises a metal wire bundle, and the metal wire bundle of each second single wire is externally coated with a ceramic silicone rubber insulating layer.

Furthermore, the metal conducting wire bundle of each second single conducting wire is sequentially coated with an inner isolation layer, an aluminum-plastic composite tape wrapping and a composite shielding layer from inside to outside.

Further, each composite shielding layer is arranged on the inner side of the ceramic silicon rubber insulating layer.

Furthermore, the outside of each ceramic silicon rubber insulating layer is coated with an insulating isolation layer.

The utility model has the technical effects that:

1. according to the utility model, the polyolefin baffles are arranged on the inner wall of the reinforcing band layer at intervals, so that the filling layer is separated, mineral substances of the filling layer can be prevented from naturally flowing in the cable, the filling layer is uniformly distributed, the integral protection effect of a lead group is ensured, and the accumulation phenomenon in the filling layer is avoided, thus the flexibility of the cable is ensured, the experience feeling of people in use is improved, in addition, the polyolefin baffles also have the properties of low smoke, zero halogen and flame retardance, and the environment-friendly flame retardant property of the cable is improved.

2. According to the utility model, the fire-resistant layer of the first single conductor is composed of two layers of transverse coated mica tape layers with different winding directions, a layer of longitudinal coated mica tape and a ceramic silicon rubber insulating layer doped with a vulcanizing agent, and the ceramic silicon rubber insulating layer is also arranged in the insulating isolation layer of the second single conductor and has the elasticity and flexibility of common silicon rubber at normal temperature, so that a hard shell is formed after high-temperature flame ablation, a burned object is protected from being damaged, and the high-temperature ablation resistance of the flexible cable is greatly improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a longitudinal development of the reinforcement band of the present invention;

FIG. 3 is a schematic structural diagram of a first unit conductive line according to the present invention;

FIG. 4 is a schematic structural diagram of a second monolithic conductive wire according to the present invention;

the cable comprises a first single conductor, a second single conductor, a mineral filling layer, a reinforcing band layer, a reinforcing jacket layer, an outer sheath layer, an outer coating layer, a polyolefin baffle, a metal conductor bundle, a first transverse coating mica band layer, a second transverse coating mica band layer, a longitudinal coating mica band layer, a ceramic silicon rubber insulating layer, a metal conductor bundle, a first transverse coating mica band layer, a second transverse coating mica band layer, a longitudinal coating mica band layer, a ceramic silicon rubber insulating layer, an insulating isolating layer, an inner isolating layer, a plastic-aluminum composite band wrapping layer and a composite shielding layer, wherein the first single conductor, the second single conductor, the mineral filling layer, the reinforcing band layer, the outer sheath layer, the metal conductor bundle, the first transverse coating mica band layer, the second transverse coating mica band layer, the longitudinal coating mica band layer, the ceramic silicon rubber insulating isolating layer, the inner isolating layer, the aluminum-plastic composite band wrapping layer and the composite shielding layer are arranged in a mode.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example one

As shown in fig. 1 to 4, a flexible flame-retardant ceramic cable for a charging pile includes: the cable comprises a lead group and an outer coating layer 6, wherein the outer coating layer 6 comprises a mineral filling layer 3, a reinforcing belting layer 4 and an outer sheath layer 5 which are sequentially arranged from inside to outside, the mineral filling layer 3 is a zirconium-aluminum type aluminum silicate ceramic fiber layer and has the characteristics of high temperature resistance, heat insulation and soft material, the application of the charging cable in different environments is met, the reinforcing belting layer 4 is a polyolefin layer and has the characteristics of low smoke, zero halogen and flame retardance, an expansion reaction can be rapidly generated when the cable is on fire to form a compact porous carbon layer, the flame retardant material can absorb the heat on the surface of a combustion material to carry out chemical decomposition, the combustion process is further reduced, the decomposition reaction can generate magnesium oxide and water, the magnesium oxide can be attached to the surface of the combustion material, the water can dilute oxygen in the middle, the two jointly act to further prevent the combustion speed, and the lead group is arranged in the mineral filling layer 3, the interval is provided with a plurality of polyolefin baffle 7 on the inner wall of reinforcement band layer 4, play the effect of cutting off to the filling layer, can prevent that the mineral substance of filling layer from naturally flowing in the cable, make the filling layer distribute evenly, ensured the holistic guard action of wire group, the phenomenon of gathering appears in avoiding the filling layer, thereby the compliance of cable has been ensured, experience when improving people and using is felt, furthermore, polyolefin baffle 7 still has low smoke and zero halogen fire-retardant nature, promote the environmental protection flame retardant property of cable, wire group includes many first monomer wires 1, first monomer wire 1 sets up to three, wherein two are main insulation core, another one is the earth connection core, every first monomer wire 1 all includes metal wire harness 8, and metal wire harness 8's outside cladding has the flame retardant coating, every flame retardant coating all includes from interior to exterior first horizontal mica band layer 9 that sets gradually, The second transverse coated mica tape layer 10, the longitudinal coated mica tape layer 11 and the ceramic silicon rubber insulating layer 12, the first transverse coated mica tape layer 9 and the second transverse coated mica tape layer 10 are different in winding direction, the mica tape layer is improved, the lead group further comprises a plurality of second single leads 2, the number of the second single leads 2 is two, the second single leads 2 are signal control cores, each second single lead 2 also comprises a metal lead bundle 8, each metal lead bundle 8 can be a twisted copper conductor, the outer part of the metal lead bundle 8 of each second single lead 2 is coated with the ceramic silicon rubber insulating layer 12, the vulcanized ceramic silicon rubber has the elasticity and flexibility of common silicon rubber at normal temperature, and has the characteristics of excellent fire resistance, flame retardance, low smoke, no toxicity and the like, a hard shell is formed after ablation of high-temperature flame, and the hard shell is not melted and does not drop in a fire environment, the protection is not damaged by the object of burning, can guarantee under the conflagration condition that electric power transmission's unobstructed, improve flexible fireproof cable's fire-resistant function, the metal wire harness 8 outside from interior to exterior of every second monomer wire 2 has interior isolation layer 14 in the cladding in proper order, the compound area of aluminium-plastic winds package 15 and composite shielding layer 16, every composite shielding layer 16 all sets up in ceramic silicon rubber insulating layer 12's inboard, the outside of every ceramic silicon rubber insulating layer 12 all has the cladding of insulating isolation layer 13, oversheath layer 5, the material of insulating isolation layer 13 and interior isolation layer 14 all adopts polyethylene.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims (6)

1. The utility model provides a fill electric pile with flexible fire-retardant pottery cable which characterized in that includes: wire group and outer cladding (6), outer cladding (6) include mineral substance filling layer (3), reinforcement band layer (4) and oversheath layer (5) that from interior to exterior set gradually, the wire group sets up in mineral substance filling layer (3), the interval is provided with a plurality of polyolefin baffle (7) on the inner wall of reinforcement band layer (4).

2. The flexible flame-retardant ceramic cable for the charging pile according to claim 1, wherein the wire group comprises a plurality of first single wires (1), each first single wire (1) comprises a metal wire bundle (8), and the metal wire bundle (8) is coated with a flame-retardant layer, each flame-retardant layer comprises a first transverse coated mica tape layer (9), a second transverse coated mica tape layer (10), a longitudinal coated mica tape layer (11) and a ceramic silicon rubber insulating layer (12) which are sequentially arranged from inside to outside.

3. The flexible flame-retardant ceramic-made cable for the charging pile according to claim 2, wherein the wire group further comprises a plurality of second unit wires (2), each second unit wire (2) also comprises a metal wire bundle (8), and the metal wire bundle (8) of each second unit wire (2) is externally coated with a ceramic silicone rubber insulating layer (12).

4. The flexible flame-retardant ceramic cable for the charging pile according to claim 3, wherein the metal conductor bundle (8) of each second single conductor (2) is coated with an inner insulating layer (14), an aluminum-plastic composite tape wrapping (15) and a composite shielding layer (16) from inside to outside in sequence.

5. The flexible flame-retardant ceramic cable for charging pile according to claim 4, wherein each of the composite shield layers (16) is disposed on the inner side of the ceramic silicone rubber insulating layer (12).

6. The flexible flame-retardant ceramic cable for a charging pile according to claim 5, wherein each of the ceramic silicone rubber insulating layers (12) is externally coated with an insulating barrier layer (13).

Images