Quick charging system based on charging pile

Abstract

The utility model discloses a rapid charging system based on a charging pile, and relates to the technical field of charging equipment, a plurality of charging terminals are connected with a control cabinet, the charging terminals are connected with a power grid through a transmission cable, the transmission cable is sleeved with an anti-leakage unit, and the anti-leakage unit comprises an insulating layer, a shielding layer and a protective layer which are sequentially arranged from inside to outside; the insulation layer isolates the transmission cable from the external environment, power leakage of the transmission cable is reduced, the shielding layer shields external electromagnetic interference, stability of transmission current in the transmission cable is guaranteed, and the protection layer reduces damage to the transmission cable. Each charging terminal is connected with a plurality of charging guns, a plurality of charging areas matched with the charging guns are arranged on the periphery of each charging terminal, and the operation range of each charging gun covers the corresponding charging area, so that equipment and space conditions are provided for simultaneous charging of a plurality of devices to be charged; according to the utility model, space, equipment and capability are provided, so that a plurality of to-be-charged equipment can be rapidly charged at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to charging equipment technical field especially, and it is a kind of fast charging system based on charging pile. BACKGROUND

[0002] In prior art, taxi or online car driver using electric vehicle as travel tool has strong fast charging demand, but charging pile in prior art is difficult to simultaneously meet the fast charging demand of multiple users.

[0003] Therefore, how to make charging pile can simultaneously realize the fast charging of multiple charging equipment becomes the technical problem that the technical personnel in the field need to solve urgently. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of fast charging system based on charging pile, to make the utility model can make electric vehicle and multiple charging equipment simultaneously fast charging.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme:

[0006] The utility model provides a kind of fast charging system based on charging pile, the fast charging system includes:

[0007] Control cabinet and charging terminal, several charging terminals are connected with the control cabinet respectively, the charging terminal is connected with power grid through conveying cable, the conveying cable is equipped with leakage prevention unit, the leakage prevention unit includes insulation layer, shielding layer and protection layer arranged in order from inside to outside, the insulation layer is used to isolate the conveying cable and external environment, the shielding layer is used to shield external electromagnetic interference;

[0008] Each charging terminal is connected with several charging guns, and the periphery of each charging terminal is provided with several charging areas matched with the corresponding charging guns, and the working range of each charging gun covers the corresponding charging area.

[0009] Preferably, the conveying cable includes a first cable and a second cable, and the first cable and the second cable are both sleeved with the leakage prevention unit; the control cabinet is provided with a power supply unit, the power supply unit is connected with the power grid through the first cable, and several charging terminals are connected with the power supply unit through the second cable; the length of the first cable is greater than the length of the second cable, and the first voltage output by the power grid to the power supply unit is greater than the second voltage output by the power supply unit to the charging terminal.

[0010] Preferably, the power transmission cable comprises several parallel third cables, both ends of the third cable are connected with the power grid and the charging terminal respectively, and the third cable is provided with the leakage-proof unit; the control cabinet is connected with the power grid through a fourth cable, and the length of the fourth cable is not less than the length of the third cable.

[0011] Preferably, the end of the power transmission cable is provided with a joint.

[0012] Preferably, the joint is provided with an anti-oxidation layer; and / or the joint is provided with a fastening part connected with the power grid or the charging terminal; and / or the joint is in a spiral or corrugated shape.

[0013] Preferably, the fast charging system comprises an energy storage assembly.

[0014] Preferably, the energy storage assembly is connected with the output port of the power grid and / or the charging gun through a fifth cable, and the output port of the energy storage assembly is connected with the charging terminal through a sixth cable, the fifth cable is provided with a first switch, and the sixth cable is provided with a second switch; when the power supply amount of the fast charging system is greater than the power demand amount of the device to be charged, the second switch is closed and the first switch is opened; when the power supply amount is less than the power demand amount, the second switch is opened and the first switch is closed.

[0015] Preferably, the power grid is connected with a wind power generation system and / or a solar power generation system.

[0016] Preferably, the fast charging system further comprises a heat dissipation assembly, the heat dissipation assembly comprises a first heat dissipation unit provided in the control cabinet and connected with a first heat generating component in the control cabinet, a second heat dissipation unit provided in the charging terminal and connected with a second heat generating component in the charging terminal, and a third heat dissipation unit sleeved outside the charging gun.

[0017] Preferably, a third switch is arranged between the charging gun and the charging terminal, the charging gun is connected with a temperature sensor, the temperature sensor, the third heat dissipation unit are all connected with a controller signal; when the controller determines that the temperature of the charging gun reaches a first set temperature according to the feedback of the temperature sensor, the controller starts the third heat dissipation unit; when the controller determines that the temperature of the charging gun reaches a second set temperature according to the feedback of the temperature sensor, the controller keeps the third heat dissipation unit open and closes the third switch; the first set temperature is higher than the working temperature of the charging gun, the second set temperature is greater than the safe working temperature of the charging gun, and the working temperature is lower than the safe working temperature.

[0018] Preferably, the quick charging system is located in a parking lot, the quick charging system comprises a guiding assembly, the guiding assembly comprises a detection member arranged at an entrance of the parking lot and a guiding lamp arranged at one side of the charging area, and the detection member and the guiding lamp are both signal-connected with the controller; when the controller determines that a device to be charged enters the parking lot according to the feedback of the detection member, the controller starts the guiding lamp.

[0019] Preferably, any of the charging terminals is provided with an input port for being connected with other charging terminals and an output port for being connected with a device to be charged.

[0020] Preferably, the quick charging system further comprises a power distribution assembly, the power distribution assembly comprises a first interface and a plurality of second interfaces connected in communication, the first interface is used for being connected with a device to be charged, and the second interfaces are used for being connected with the charging terminals.

[0021] Preferably, the input end of the control cabinet is provided with an overcurrent protection member and an overvoltage protection member; the control cabinet is connected with the ground through a first wire, and the charging terminals are connected with the ground through second wires.

[0022] The utility model discloses relative to prior art has obtained following technical effect:

[0023] The utility model discloses a quick charging system, control cabinet and charging terminal, a plurality of charging terminals and control cabinet are connected, and the charging terminal is connected with the power grid through the conveying cable, and the conveying cable is equipped with the anti -leakage unit, and the anti -leakage unit includes the insulating layer, shielding layer and protection layer that are sequentially arranged from inside to outside, the insulating layer is separated from the outside environment with conveying cable, and the power leakage in the operation process of conveying cable is reduced, shielding layer shields the electromagnetic interference of outside, guarantees the stability of conveying current in conveying cable, and the protection layer reduces the external mechanical damage of conveying cable, in short, the utility model discloses through the anti -leakage unit makes conveying cable can convey the power of power grid output to charging terminal efficiently, reduces the leakage in the power transmission process, and lays the foundation for the quick charging of charging terminal to the device to be charged.

[0024] And, in the utility model, each charging terminal is connected with a plurality of charging guns, the periphery of each charging terminal is equipped with a plurality of charging areas matched with the charging guns, and the working range of each charging gun covers the corresponding charging area, so that when more than the number of charging terminals of electric vehicles and other devices to be charged need to be charged at the same time, the charging areas provide space conditions for the charging of multiple devices to be charged, and the charging guns provide equipment conditions for the simultaneous charging of multiple devices to be charged.

[0025] In summary, the utility model has space, equipment and ability to enable multiple devices to be charged to be charged at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0027] Figure 1 It is a structural schematic diagram of the fast charging system based on the charging pile.

[0028] Figure 2 It is a structural schematic diagram of the leakage prevention unit.

[0029] Among them, 1, charging pile; 2, control cabinet; 3, charging terminal; 4, conveying cable; 5, insulation layer; 6, shielding layer; 7, protective layer; 8, charging area; 9, charging gun; 10, energy storage assembly; 11, wind power generation system; 12, solar power generation system; 13, power grid. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort are within the scope of protection of the present application.

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] As shown in Figure 1 , Figure 2 The present application discloses a fast charging system based on a charging pile 1. The fast charging system comprises a control cabinet 2 and a charging terminal 3. A plurality of charging terminals 3 are respectively connected to the control cabinet 2. The charging terminal 3 is connected to a power grid 13 through a conveying cable 4. The conveying cable 4 is provided with a leakage prevention unit. The leakage prevention unit comprises an insulation layer 5, a shielding layer 6 and a protective layer 7 arranged in sequence from inside to outside. The insulation layer 5 is used to isolate the conveying cable 4 and the external environment. The shielding layer 6 is used to shield external electromagnetic interference. Each charging terminal 3 is connected to a plurality of charging guns 9. Each charging terminal 3 is provided with a plurality of charging areas 8 matched with the corresponding charging guns 9. The working range of each charging gun 9 covers the corresponding charging area 8.

[0033] The utility model discloses a quick charging system includes control cabinet 2 and charging terminal 3, if a plurality of charging terminal 3 and control cabinet 2 are connected, and charging terminal 3 is connected through conveying cable 4 and power grid 13, and conveying cable 4 is equipped with the anti -leakage unit, and the anti -leakage unit includes the insulating layer 5 that sets gradually from inside to outside, shielding layer 6 and protection layer 7, conveying cable 4 is isolated from outside environment by insulating layer 5, and the power leakage in the operation process of conveying cable 4 is reduced, shielding layer 6 shields the electromagnetic interference of outside, guarantees the stability of conveying current in conveying cable 4, and protection layer 7 reduces the external mechanical damage of conveying cable 4, in short, the utility model discloses a conveying cable 4 can transmit the power of power grid 13 output to charging terminal 3 efficiently through the anti -leakage unit, and the leakage in power transmission process is reduced, and the foundation is laid for charging terminal 3 to carry out quick charging to the charging equipment, and furthermore, every charging terminal 3 in the utility model is connected with a plurality of charging guns 9, and the periphery of every charging terminal 3 is equipped with a plurality of charging areas 8 that cooperate with charging gun 9, and the operation range of every charging gun 9 covers the corresponding charging area 8, and therefore, when the electric automobile of more than charging terminal 3 number waits charging equipment needs to charge simultaneously, the above-mentioned charging area 8 provides space condition for the charging of a plurality of charging equipment, and charging gun 9 provides equipment condition for the simultaneous charging of a plurality of charging equipment, and in conclusion, the utility model has space, has equipment, has the ability to make a plurality of charging equipment charge simultaneously.

[0034] The charging terminal 3 is connected with the control cabinet 2, that is, the control board and other control components in each charging terminal 3 and the man-machine interactive display screen and other structures are integrated in the control cabinet 2, the control components in the control cabinet 2 are respectively connected with each charging terminal 3, in this way, the user can start the corresponding charging terminal 3 and select different charging modes by operating the man-machine interactive display screen connected with the control components; the charging terminal can be a charging pile, the signal connection between the control cabinet 2 and the charging terminal 3 is prior art, and the detailed structure will not be described herein. The power grid 13 refers to a device capable of generating and outputting electric energy. The transmission cable 4 refers to a power line capable of outputting electric energy in the power grid 13 to the charging terminal 3. The insulation layer 5 can be made of polyethylene and other materials capable of preventing current leakage in the transmission cable 4; the shielding layer 6 can be made of copper foil or metal mesh and other materials capable of balancing the electric field, reducing the electric field concentration phenomenon and shielding electromagnetic interference; the protective layer 7 can be made of polyvinyl chloride or polyethylene and other materials with high strength and wear resistance. The charging area 8 refers to the area where the electric vehicle waits for the charging device to charge. The cooperation between the charging area 8 and the charging gun 9 refers to that the number of the charging gun 9 is not less than the number of the charging area 8, and each charging area 8 is provided with one charging gun 9. The working range of each charging gun 9 covers the corresponding charging area 8, that is, the cable between the charging gun 9 and the charging terminal 3 in the charging area 8 is long enough to enable the charging gun 9 to charge the devices to be charged in each area in the corresponding charging area 8, which improves the flexibility of the devices to be charged in the charging area 8.

[0035] When the charging terminal 3 is indirectly connected with the power grid 13 through the transmission cable 4, the transmission cable 4 comprises a first cable and a second cable, the first cable and the second cable are both provided with a leakage prevention unit; the control cabinet 2 is provided with a power supply unit, the power supply unit is connected with the power grid 13 through the first cable, and the plurality of charging terminals 3 are respectively connected with the power supply unit through the second cable, the length of the first cable is greater than that of the second cable, the first voltage output by the power grid 13 to the power supply unit is greater than the second voltage output by the power supply unit to the charging terminal 3. Among them, the first voltage output by the power grid 13 to the power supply unit is high-voltage electricity, such as 6kv-35kv alternating current, which is converted into low-voltage electricity under the action of the transformer, rectifier circuit and other structures in the control cabinet 2; the second voltage output by the power supply unit to the charging terminal 3 is low-voltage electricity, such as 200-600v direct current or alternating current; and the length of the first cable is greater than that of the second cable, and when the power is constant, the greater the voltage, the smaller the current, which shortens the transmission distance of the low-voltage electricity, thereby reducing the power loss in the transmission process, enabling the charging terminal 3 to supply higher power to the device to be charged, and realizing faster charging.

[0036] The power supply unit refers to the device capable of temporarily storing electric energy in the control cabinet 2. At this time, the power supply unit can also be arranged in each charging terminal 3. In this way, the first cable will deliver electric energy to the power supply unit in the charging terminal 3. Alternatively, the power supply unit can also not be arranged in the charging terminal 3. At this time, the output end of the first cable is connected with the input interface of the charging terminal 3, the input interface of the charging terminal 3 is connected with the output interface, and the output interface is connected with the charging gun 9. In this way, the first cable directly outputs electric energy to the charging gun 9, and the charging gun 9 supplies electric energy to the device to be charged. At this time, the size of the charging terminal 3 is reduced. The specific arrangement mode is determined according to the working condition requirements.

[0037] When the charging terminal 3 is directly connected with the power grid 13, and the electric power output by the power grid 13 does not pass through the control cabinet 2, the transmission cable 4 includes a plurality of parallel third cables, the two ends of the third cable are respectively connected with the power grid 13 and the charging terminal 3, and the third cable is externally provided with a leakage prevention unit. The transmission cable 4 includes a plurality of parallel third cables. This reduces the total cross-sectional area of the transmission cable 4, reduces the resistance of the transmission cable 4, and thus reduces the power loss of electric power in the transmission process. The control cabinet 2 is connected with the power grid 13 through a fourth cable, and the length of the fourth cable is not less than the length of the third cable. This shortens the path required to be passed by the electric energy in the power grid 13 to reach the charging terminal 3, and reduces the loss of electric power in the transmission process.

[0038] Moreover, the end of the transmission cable 4 is provided with a joint. An antioxidant layer is arranged on the joint to improve the oxidation resistance of the joint, so that the joint is not easy to increase the resistance due to oxidation, and the problems of increased resistance at the joint and increased power transmission loss due to oxidation of the joint are reduced. The antioxidant layer can be a silver plating layer or a tin plating layer. Moreover, the joint is provided with a fastening part connected with the power grid 13 and / or the charging terminal 3. The fastening part is arranged to ensure the stability of the connection between the joint and the charging terminal 3 and the power grid 13, so as to prevent the problems of unstable power transmission due to loose connection between the third cable and the power grid 13 and the charging terminal 3. The fastening part can be an external thread or an internal thread arranged at the joint, or a clamping structure arranged at the joint. The charging terminal 3 and the power grid 13 are provided with an external thread or an internal thread or a clamping structure matched with the fastening part. Moreover, the joint is in a spiral or corrugated shape, which increases the contact area between the joint and the power grid 13 and the charging terminal 3, so that the transmission cable 4 can be more stably connected with the power grid 13 or the charging terminal 3.

[0039] Further, the quick charging system comprises an energy storage assembly 10; wherein the energy storage assembly 10 is connected with the output of the power grid 13 and / or the charging gun 9 through a fifth cable, the output of the energy storage assembly 10 is connected with the charging terminal 3 through a sixth cable, the fifth cable is provided with a first switch, and the sixth cable is provided with a second switch; when the power supply amount of the quick charging system is greater than the power demand amount of the to-be-charged equipment, the second switch is closed and the first switch is opened; when the power supply amount is less than the power demand amount, the second switch is opened and the first switch is closed. Through the above structure, when the quick charging system is idle, that is, the power supply amount is greater than the power demand amount, the excess power is stored in the energy storage assembly 10; when the quick charging system is busy, that is, the power supply amount is less than the power demand amount, the power in the energy storage assembly 10 is released and supplied to the to-be-charged equipment; this makes the quick charging system in the utility model can continuously output higher power in the power peak period and the power low period, and meets the quick charging demand of the to-be-charged equipment. The opening and closing of the first switch and the second switch can be realized manually by the operator, and can also be realized by the controller connected with the first switch and the second switch.

[0040] And / or, the power grid 13 is connected with a wind power generation system 11 and / or a solar power generation system 12, which improves the stability of the output power of the power grid 13 and the charging terminal 3, so that the quick charging demand of the to-be-charged equipment in the utility model can be more stably met. The wind power generation system 11 is a device that can generate electricity by wind energy and output power, and the solar power generation system 12 is a device that can generate electricity by solar energy and output power; the wind power generation system 11 and the solar power generation system 12 are prior art, and the specific structure will not be described again.

[0041] And, the utility model discloses a quick charging system still includes heat dissipation subassembly, heat dissipation subassembly includes being located in control cabinet 2, with the first heat dissipation unit that is connected with the first heating component in control cabinet 2, be located in charging terminal 3, with the second heat dissipation unit that is connected with the second heating component in charging terminal 3, and the third heat dissipation unit of sleeve set in charging gun 9 outside. The first heating component refers to the structure that generates heat in control cabinet 2, such as power supply, circuit board etc. The second heating component refers to the structure that generates heat in charging terminal 3, such as power supply, circuit board etc. The first heat dissipation unit and the first heating component are connected, and the first heat dissipation unit can take away the heat generated by the first heating component. Similarly, the second heat dissipation unit and the second heating component are connected, and the second heat dissipation unit can take away the heat generated by the second heating component. The third heat dissipation unit can take away the heat generated by charging gun 9. The first heat dissipation unit, the second heat dissipation unit and the third heat dissipation unit can be air-cooled heat dissipation equipment or liquid-cooled heat dissipation equipment. For example, when the third heat dissipation unit is liquid-cooled heat dissipation equipment, the third heat dissipation unit includes coil pipe that is sleeve set in charging gun 9 outside, both ends of the coil pipe are connected with storage tank, the storage tank stores cooling medium, and the coil pipe is equipped with circulating pump, and the cooling medium in the storage tank is input into the coil pipe through the circulating pump, and the circulation of the cooling medium in the coil pipe can take away the heat generated by charging gun 9, avoid overheating of charging gun 9, so that charging gun 9 can not overheat in the state of quick charging.

[0042] Further, the third switch is arranged between the charging gun 9 and the charging terminal 3, the charging gun 9 is connected with a temperature sensor, and the temperature sensor and the third heat dissipation unit are connected with the controller; when the controller determines that the temperature of the charging gun 9 reaches the first set temperature according to the feedback of the temperature sensor, the controller starts the third heat dissipation unit; when the controller determines that the temperature of the charging gun 9 reaches the second set temperature according to the feedback of the temperature sensor, the controller keeps the third heat dissipation unit open and closes the third switch; the first set temperature is higher than the working temperature of the charging gun 9, the second set temperature is greater than the safe working temperature of the charging gun 9, and the working temperature is lower than the safe working temperature. In this way, the third heat dissipation unit can cool down when the charging gun 9 needs to cool down, that is, reaches the first set temperature, and stops working when the charging gun 9 does not reach the first set temperature, which reduces the power consumption of the third heat dissipation unit and reduces the cost of quick charging. When the charging equipment has a charging demand before the temperature of the charging gun 9 reaches the second set temperature, the third switch at the corresponding charging terminal 3 is opened; when the temperature of the charging gun 9 reaches the second set temperature, the third switch is closed, and the power supply of the charging terminal 3 to the charging gun 9 is stopped to prevent the charging terminal 3 from overheating and being damaged.

[0043] The quick charging system is located in a parking lot, and the quick charging system comprises a guiding assembly, the guiding assembly comprising a detection member arranged at an entrance of the parking lot, a guiding lamp and a loudspeaker arranged at one side of the charging area 8, the detection member, the guiding lamp and the loudspeaker being signal-connected with a controller; when the controller determines that a charging device is about to enter the parking lot according to the feedback of the detection member, the controller starts the guiding lamp and the loudspeaker. When the controller determines that a charging device is about to enter the parking lot according to the feedback of the detection member, the controller starts the guiding lamp and the loudspeaker at the charging area 8 of the corresponding number of charging terminals 3, so as to assist the user to quickly find the charging area 8, shorten the time for the user to find the idle charging terminal 3, and enable the charging device to start the quick charging in a shorter time. The detection member can be a camera, an infrared sensor or other devices capable of detecting that the charging device enters the parking lot. The guiding lamp is a lamp capable of emitting bright light. The loudspeaker can broadcast voice to the outside world to prompt the user to the position of the charging area 8.

[0044] Any charging terminal 3 is provided with an input port for being connected with other charging terminals 3 and an output port for being connected with the charging device. When the output power of a single charging terminal 3 is less than the power required by the charging device for quick charging, the corresponding number of charging terminals 3 are connected in series through the charging gun 9 or the cable, so that the corresponding number of charging terminals 3 connected in series can output the power required by the charging device. For example, if the maximum output power of a single charging device is 50v and the power required by the charging device for quick charging is 150v, three charging terminals 3 can be connected in series at this time, and the output power of the charging terminal 3 at the end will be 150v. The series connection between the charging terminals 3 can be realized through the charging gun 9 or the cable. When the charging terminals 3 are connected in series through the charging gun 9, the input port and the charging gun 9 are matched, and the charging gun 9 can output the power of the self charging terminal 3 to another charging terminal 3. When the charging terminals 3 are connected in series through the cable, the input port and the connectors at both ends of the cable are matched.

[0045] The quick charging system further comprises a power distribution assembly, the power distribution assembly comprising a first interface and a plurality of second interfaces connected in communication, the first interface being used for being connected with the charging device, and the second interface being used for being connected with the charging terminal 3. When the output power of a single charging terminal 3 is less than the power required by the charging device for quick charging, the corresponding number of charging terminals 3 are connected with the second interface, so that the first interface can superimpose a plurality of charging devices and output the power required by the charging device to the charging device. The first interface can be connected with the charging device through the charging gun 9 or the cable, the second interface can be connected with the charging terminal 3 through the charging gun 9 or the cable, and the power distribution assembly can be understood as a power line with an output end and a plurality of input ends, the first interface being the output end of the power line and the second interface being the input end of the power line.

[0046] The input end of the control cabinet 2 and the input end of the charging terminal 3 are provided with overcurrent protection devices and overvoltage protection devices; the control cabinet 2 is connected with the ground through a first wire, and the charging terminal 3 is connected with the ground through a second wire. The overcurrent protection device can be an air switch or the like that can be disconnected when the current in the circuit exceeds the rated current; the overvoltage protection device can be a voltage stabilizer or the like that can stabilize the voltage within a set range; the first wire and the second wire are both ground wires, which ensures good contact of the control cabinet 2, the charging terminal 3 and the ground. Once the charging terminal 3 or the control cabinet 2 leaks electricity, the current can quickly flow into the ground, ensuring the safety of personnel and surrounding equipment.

[0047] The and / or in this document refers to the text content located and / or in front of the text content, and the text content located and / or behind the text content can exist simultaneously or separately; for example, A and / or B includes only A or B, and A and B exist simultaneously.

[0048] The utility model discloses multiple technical schemes, but does not exist to give opposite technical inspiration case.

[0049] In the description of the present disclosure, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present disclosure.

[0050] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0051] In the present disclosure, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, they can be fixedly connected, or can be detachably connected, or can be integrated; they can be mechanically connected, or can be electrically connected; they can be directly connected, or can be indirectly connected through an intermediate medium; they can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0052] In the present disclosure, unless specifically defined otherwise and limited, the "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "on", "above" and "upper" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The "under", "below" and "lower" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is less than the second feature in horizontal height.

[0053] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the specification.

[0054] Other embodiments of the present disclosure will be apparent to those skilled in the art upon consideration of the specification and practice of the applications disclosed herein. The present application is intended to cover any variations, uses or adaptive changes of the present disclosure following the general principles of the present disclosure and including known or customary technical means in the art not disclosed in the present disclosure. The specification and examples are only considered as exemplary, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0055] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used to help understand the method and core idea of the utility model; at the same time, for the general technical personnel in the art, according to the idea of the utility model, there will be changes in specific implementation mode and application range. In view of the above, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A fast charging system based on a charging pile, characterized in that, The rapid charging system comprises: a control cabinet and charging terminals, a plurality of the charging terminals are connected to the control cabinet respectively, the charging terminals are connected to the power grid through a delivery cable, the delivery cable is provided with a leakage-proof unit, the leakage-proof unit comprises an insulation layer, a shielding layer and a protective layer arranged in sequence from inside to outside, the insulation layer is used for isolating the delivery cable and the external environment, and the shielding layer is used for shielding external electromagnetic interference; each of the charging terminals is connected to a plurality of charging guns, and the periphery of each of the charging terminals is provided with a plurality of charging areas matched with the corresponding charging guns, and the working range of each of the charging guns covers the corresponding charging area.

2. The fast charging system of claim 1, wherein, The delivery cable comprises a first cable and a second cable, and the first cable and the second cable are both provided with the leakage-proof unit; the control cabinet is provided with a power supply unit, the power supply unit is connected to the power grid through the first cable, a plurality of the charging terminals are connected to the power supply unit through the second cable, the length of the first cable is greater than the length of the second cable, and the first voltage output by the power grid to the power supply unit is greater than the second voltage output by the power supply unit to the charging terminals.

3. The fast charging system of claim 1, wherein, The delivery cable comprises a plurality of parallel third cables, the two ends of the third cable are connected to the power grid and the charging terminal respectively, and the third cable is provided with the leakage-proof unit; the control cabinet is connected to the power grid through a fourth cable, and the length of the fourth cable is not less than the length of the third cable. And / or, the end of the delivery cable is provided with a joint; wherein, the joint is provided with an antioxidant layer; and / or, the joint is provided with a fastening part connected to the power grid or the charging terminal; and / or, the joint is in a spiral or corrugated shape.

4. The fast charging system of claim 3, wherein, The rapid charging system comprises an energy storage assembly; wherein, the energy storage assembly is connected to the output port of the power grid and / or the charging gun through a fifth cable, the output port of the energy storage assembly is connected to the charging terminal through a sixth cable, the fifth cable is provided with a first switch, and the sixth cable is provided with a second switch; when the power supply amount of the rapid charging system is greater than the power demand amount of the device to be charged, the second switch is closed and the first switch is opened; when the power supply amount is less than the power demand amount, the second switch is opened and the first switch is closed; And / or, the power grid is connected to a wind power generation system and / or a solar power generation system.

5. The fast charging system of claim 1, wherein, The rapid charging system further comprises a heat dissipation assembly, the heat dissipation assembly comprises a first heat dissipation unit arranged in the control cabinet and connected to a first heat generating component in the control cabinet, a second heat dissipation unit arranged in the charging terminal and connected to a second heat generating component in the charging terminal, and a third heat dissipation unit arranged outside the charging gun.

6. The fast charging system of claim 5, wherein, The third switch is arranged between the charging gun and the charging terminal, the temperature sensor is connected with the charging gun, and the temperature sensor and the third heat dissipation unit are both connected with the controller.

7. The fast charging system of claim 6, wherein, The fast charging system is arranged in a parking lot, and the fast charging system comprises a guiding assembly, the guiding assembly comprises a detection member arranged at an entrance of the parking lot and a guiding lamp arranged at one side of the charging area, and the detection member and the guiding lamp are both connected with the controller.

8. The fast charging system of claim 1, wherein, Any of the charging terminals is provided with an input port for being connected with other charging terminals and an output port for being connected with a device to be charged.

9. The fast charging system of claim 1, wherein, The fast charging system further comprises a power distribution assembly, the power distribution assembly comprises a first interface and a plurality of second interfaces connected in communication, the first interface is used for being connected with a device to be charged, and the second interface is used for being connected with the charging terminal.

10. The fast charging system of claim 1, wherein, The input end of the control cabinet is provided with an overcurrent protection member and an overvoltage protection member, the control cabinet is connected with the ground through a first wire, and the charging terminal is connected with the ground through a second wire.

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