CN202632804U

CN202632804U - DC charging cable for electric vehicle

Info

Publication number: CN202632804U
Application number: CN 201220303603
Authority: CN
Inventors: 张冬冬; 何夕松; 王海岭; 张红艳; 王飞; 吉云星
Original assignee: Anhui Long'an Cable Group Co Ltd
Current assignee: Anhui Long'an Cable Group Co Ltd
Priority date: 2012-06-27
Filing date: 2012-06-27
Publication date: 2012-12-26
Anticipated expiration: 2022-06-27

Abstract

The utility model discloses a DC charging cable for an electric vehicle. Two charging communication cable cores and two charging connection determination cable cores are stranded and wound with a wrapping copper band shielding layer to form a first cable core; the first cable core and a DC power supply positive cable core, a DC power supply negative cable core, a low voltage auxiliary positive power supply cable core, a low voltage auxiliary negative power supply cable core as well as a grounding cable core are stranded to form a cable core, a filling layer is arranged in a gap of the cable core, and a wrapping layer and a polyurethane elastic body external sleeve are arranged outside the cable core. The DC charging cable for the electric vehicle is mainly used for connection of a charging system between a non-vehicle-mounted charger and a charging plug in a charging station, strict protection and control solution is provided for the cable during utilization process, damage to an operator, which caused by on-load push-pull, is avoided, and the DC charging cable for the electric vehicle has anti-bending, anti-abrasion, cold resistance, electric interference resistance, stability of signal transmission, anti- ultraviolet ray, anti-ozone, anti-atmospheric aging and the like.

Description

Used for electric vehicle DC charging cable

Technical field:

The utility model relates to a kind of used for electric vehicle DC charging cable.

Background technology:

Along with the surging and increasingly serious energy-saving and emission-reduction pressure of oil price, country is also increasing to the demand of energy field, and the existing energy can not satisfy the growing needs of people.Automobile industry is a global large-scale industry, therefore greatly develops the new focus that new-energy automobile becomes the world car competition in the industry.In this process, electric automobile becomes the representative of new-energy automobile gradually.Domestic charging cable commonly used at present is the signalization control line not; Perhaps simple and connect holding wire; Control signal receives the interference signal that the electric power transfer process of cable produces easily and disturbs like this, causes confusion, and is unfavorable for the control of charging process; And adopting independently electric power handling cable and separate signal control cable simple combination, the signal controlling cable is interfered easily.Common cable is general to adopt stranded core to make, and twists easily in the frequent plug process of charging, causes distortion of the cable, thereby influences electric power transfer, influences cable useful life.

Summary of the invention:

For overcoming the defective of prior art; The purpose of the utility model is to provide a kind of used for electric vehicle DC charging cable; Be mainly used in non-vehicle-mounted charge machine of charging station occasion and charging plug between the connection of charging system; In use require cable to have strict protection control measure; Avoid being with between plug and the socket and carry the injury that plug causes operating personnel, and require anti-bending, wear-resisting, cold-resistant, anti-electrical Interference, stable signal transmission, characteristics such as anti-ultraviolet, anti-ozone and anti-atmospheric aging.

The utility model technical solution problem adopts following technical scheme:

Used for electric vehicle DC charging cable; Connect the wrapped copper strips screen in the stranded back of affirmation core and constitute first core by two charging communication cores, two chargings; Said first core and the positive core of DC power supply, DC power supply negative wire core, the auxiliary positive supply core of low pressure, the auxiliary negative supply core of low pressure and ground connection core are stranded to be cable core; The cable core gap is provided with packed layer, and said cable core is provided with lapping layer and polyurethane elastomer oversheath outward.

This cable has increased by two charging communication cores (S+, S-), two chargings connect affirmation core (CC1, CC2), the auxiliary positive and negative power supply core (A+, A-) of low pressure.Non-vehicle-mounted charge equipment is through the battery management system power supply of the auxiliary positive and negative power supply core of low pressure to electric automobile.Non-vehicle-mounted charge equipment is through judging that charging connects the input voltage value of confirming core (CC1, CC2) and confirms whether the vehicle plug and the vehicle socket of charging plug and charging socket and electric automobile are coupled.After the plug and socket coupling was confirmed in non-vehicle-mounted charge equipment and electric motor car, the close switch control contactor was connected the DC charging loop, and battery management system and non-vehicle-mounted charge equipment communicate through the charging core of communicating by letter, to charging electric vehicle.Uninterruptedly monitor through charging is connected the input voltage signal of confirming core in the charging process, in case occur unusually, charging device cuts out DC power supply output, cut-off switch immediately.Battery management system and the non-vehicle-mounted charge equipment that has increased electric automobile is coordinated each other and on recharge logic, is protected, guaranteed vehicle plug and vehicle socket in unpluging process not bringing onto load separately increase the fail safe of charging operations.

Each core is insulated wire cores; Be made up of conductor and insulating barrier, conductor adopts the 5th kind or the 6th kind of zinc-plated or non-zinc-plated oxygen-free copper conductor stranded, and insulating barrier adopts ethylene-propylene rubber to extrude; Fill and wrapped low smoke and zero halogen environmental-protection flame-retardant band material during stranding; In order to prevent to disturb, charging communication core cable core is connected with charging confirms the stranded back of core integral weaving copper strips screen, and cable core extrudes polyurethane TPU elastomer oversheath outside belting layer.

Compared with present technology, the beneficial effect of the utility model is embodied in:

Compare with common on this construction of cable, having increased charging communication core, charging and having connected and confirm core, the auxiliary positive and negative power supply core of low pressure, guaranteed vehicle plug and vehicle socket in unpluging process not bringing onto load separately, the fail safe of increase charging operations; And increased anti-tampering property and the signal that shielding layer structure strengthened charging system and passed on accuracy.

Conductor adopt the 5th kind or the 6th kind of zinc-plated or non-zinc-plated oxygen-free copper conductor stranded, because very little of the oxygen content of copper, has strengthened the non-oxidizability of copper.Conductor is twisted into soft whipping wire with less pitch bundle, to improve the bendability and the flexibility of conductor, satisfies cable flexibility in use.

Insulating material uses anti-ozone, weather, ageing-resistant, anti-corona, anti-leakage electricity trace, electrical insulation properties, all good ethylene-propylene diene copolymer of anti-crooked flexibility, has well satisfied the mechanical performance of charging occasion and the requirement of electric property.Sheath material select to go up adopts polyurethane TPU elastomer to improve anti-flammability and cold resistance, resistance to wear, radiation hardness, the oil resistant, low temperature resistant of cable, even under subzero 30 degrees centigrade of cryogenic conditions, still can keep its pliability.

Description of drawings:

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

Label among the figure: 1 charging communication core, 2 chargings connect confirms core, 3 copper strips screens, the positive core of 4 DC power supplys; 5 DC power supply negative wire cores, 6 low pressure are assisted the positive supply core, and 7 low pressure are assisted negative supply core, 8 ground connection cores; 9 packed layers, 10 lapping layers, 11, oversheath.

Below pass through embodiment, and combine accompanying drawing that the utility model is described further.

Embodiment:

Embodiment: referring to Fig. 1; Present embodiment used for electric vehicle DC charging cable; Confirm that by two charging communication cores 1 (S+, S-), two charging connections core 2 (CC1, CC2) is stranded; The wrapped copper strips screen 3 in stranded back constitutes first core; First core and other five cores: the positive core 4 of DC power supply (DC+), DC power supply negative wire core 5 (DC-), the auxiliary positive supply core 6 (A+) of low pressure, the auxiliary negative supply core 7 (A-) of low pressure and ground connection core 8 (PE) are stranded to be cable core, and the cable core gap is provided with packed layer 9, and cable core is provided with lapping layer 10 and polyurethane elastomer oversheath 11 outward.

Claims

1. used for electric vehicle DC charging cable is characterized in that:

Connect the stranded wrapped copper strips screen in back of affirmation core (2) (3) and constitute first core by two charging communication cores (1), two chargings; Said first core and the positive core of DC power supply (4), DC power supply negative wire core (5), the auxiliary positive supply core (6) of low pressure, the auxiliary negative supply core (7) of low pressure and ground connection core (8) are stranded to be cable core; The cable core gap is provided with packed layer (9), and said cable core is provided with lapping layer (10) and polyurethane elastomer oversheath (11) outward.