CN218054873U - Multi-gun direct current charging pile power intelligent distribution system - Google Patents

Multi-gun direct current charging pile power intelligent distribution system Download PDF

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Publication number
CN218054873U
CN218054873U CN202220934093.5U CN202220934093U CN218054873U CN 218054873 U CN218054873 U CN 218054873U CN 202220934093 U CN202220934093 U CN 202220934093U CN 218054873 U CN218054873 U CN 218054873U
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charging
switch
group
power
switch group
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苏梅
李明明
陈瑞林
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Zhuhai Titans Technology Co ltd
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Zhuhai Titans Technology Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

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Abstract

The utility model aims at providing a can coordinate a plurality of rifle power of charging and with low costs many guns direct current and fill electric pile power intelligent distribution system. The utility model discloses a plurality of groups are connected many mouthfuls of charging units with power module, power module carries out voltage conversion with outside mains connection, many mouthfuls of charging units are including the at least three group that set up side by side rifle subassembly that charges, and are adjacent two sets of the rifle subassembly that charges is connected through first switch block, and is a set of the rifle subassembly that charges is respectively through a plurality of second switch blocks nonadjacent the rifle subassembly that charges is connected, the rifle subassembly that charges with treat that the charging vehicle cooperates and is connected, every group the rifle subassembly that charges all with power module's an output port is connected. The utility model discloses be applied to the technical field who fills the electric pile structure.

Description

Multi-gun direct current charging pile power intelligent distribution system
Technical Field
The utility model discloses be applied to the technical field who fills the electric pile structure, in particular to stake power intelligent distribution system is filled to many guns direct currents.
Background
Along with the progress of science and technology, electric automobile compares in traditional petrol drive vehicle can great reduction carbon emission, and electric automobile's power supply comprises motor and vehicle mounted power source, provides stable operating voltage for the motor by vehicle mounted power source, makes motor drive vehicle advance. The electric quantity stored by the vehicle-mounted power supply is limited, and the vehicle can be ensured to normally run only by charging the vehicle-mounted power supply. In the electric vehicle charging device, on the basis of expansibility, better power utilization rate can be realized, split charging piles supporting intelligent distribution are increasingly used, and the prior art mainly uses two types of annular distribution and one-input-multiple-output control.
As shown in fig. 1, the circular distribution scheme is to equally distribute charging power to each charging gun, each charging gun and the adjacent charging gun can be controlled to be opened or closed through a contactor, all the charging guns form a circular shape, when the adjacent charging gun is idle, the charging gun can be switched to the current charging gun through the adjacent loop to improve the charging power, and meanwhile, the charging gun can extend towards two sides; taking a six-port charger as an example, the annular distribution scheme requires six pairs of contactors, and the positive and negative poles of one group of ports need to be provided with contactors, so twelve contactors are required in total.
As shown in fig. 2 and fig. 3, in the one-input-multiple-output control scheme, a plurality of ports are branched from the output end of the power unit, each port needs to be correspondingly connected to each charging gun through a pair of matrix contactors, and the ports can be infinitely expanded according to different numbers of the gun ports, but the matrix devices are multiplied; specifically, each charging gun needs to be ensured to work independently, so that the number of power units needs to be matched with that of the charging guns, and one charging gun needs to be connected with all the power units simultaneously to achieve simultaneous connection and improve charging efficiency, so that the number of the matrix contactors is increased by times, the number of connecting wire harnesses is increased greatly, and the cost is greatly improved; taking a four-port charger as an example, a one-input and multi-output control scheme requires sixteen pairs of contactors, and the positive and negative electrodes of one group of ports need to be provided with contactors, so that thirty-two contactors are required totally.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art not enough, provide one kind and can coordinate a plurality of rifle power of charging and with low costs many guns direct current and fill electric pile power intelligent distribution system.
The utility model adopts the technical proposal that: the multi-gun direct-current charging pile power intelligent distribution system comprises a plurality of groups of charging units connected with a power supply module, the power supply module is connected with an external mains supply to perform voltage conversion, each multi-gun charging unit comprises at least three groups of charging gun assemblies arranged in parallel, the adjacent charging gun assemblies are connected through a first switch group and are one group of charging gun assemblies, the charging gun assemblies are respectively connected with the non-adjacent charging gun assemblies through a plurality of second switch groups, the charging gun assemblies are connected with a vehicle to be charged in a matched mode, and each charging gun assembly is connected with an output port of the power supply module.
According to the scheme, the power supply module is connected with a mains supply to convert the voltage, and the voltage is output from the corresponding output port and is connected with a vehicle through the charging gun assembly to be charged. Two adjacent groups of charging gun assemblies are connected through the first switch group, so that the two adjacent groups of charging gun assemblies are connected in series to enable two output ports to be connected into one group of charging gun assemblies, and the power of the single group of charging gun assemblies is improved. The plurality of charging gun assemblies can be connected with each other pairwise through the second switch group. Realize only needing less switch block can realize through above-mentioned scheme the interconnection of the rifle subassembly that charges guarantees simultaneously per two the rifle subassembly homoenergetic that charges all can be connected, and does not receive the influence of middle node damage, can guarantee to connect smoothly.
According to a preferable scheme, a plurality of groups of multi-port charging units are arranged in parallel and connected in sequence, adjacent multi-port charging units are connected through a cascade switch group, the cascade switch group comprises a plurality of third switch groups, and charging gun assemblies with the same number in the adjacent two groups of multi-port charging units are connected through the third switch groups.
According to the scheme, the cascade switch is used for connecting two adjacent groups of multi-port charging units, the charging gun assemblies of the two groups of multi-port charging units, which are numbered, are connected through the third switch group, and the charging gun assemblies of the two groups of multi-port charging units can be connected in pairs.
A further preferred scheme is, the utility model discloses still include the controller, power module, a plurality of first switchgroup, a plurality of second switchgroup, a plurality of third switchgroup and a plurality of the rifle subassembly that charges all with the controller electricity is connected.
According to the scheme, the controller is used for controlling the plurality of first switch groups, the plurality of second switch groups, the plurality of third switch groups and the plurality of charging gun assemblies.
Further preferably, the first switch group, the second switch group and the third switch group each include a positive contact switch and a negative contact switch, and the positive contact switch and the negative contact switch are respectively connected to a positive bus and a negative bus of the charging gun assembly.
According to the scheme, each switch group consists of a positive contact switch and a negative contact switch, and the positive bus and the negative bus are respectively controlled.
Still further preferably, each group of the charging gun assemblies is provided with a current and voltage sensor and a trigger switch which are in electric signal connection with the controller.
According to the scheme, the connection state of the charging gun assembly is detected through the trigger switch. And detecting the charging power of a loop where the charging gun assembly is located through the current and voltage sensor.
Drawings
FIG. 1 is a schematic diagram of the connection of a ring allocation scheme;
FIG. 2 is a schematic diagram of the connection of individual power cells in a one-in-multiple-out control scheme;
FIG. 3 is a schematic diagram of the overall system connections in a one-in-multiple-out control scheme;
FIG. 4 is a schematic diagram of the connection of the multi-port charging unit;
FIG. 5 is a schematic diagram of the connection of two sets of the multi-port charging units;
FIG. 6 is a schematic diagram of the connection of three sets of the multi-port charging units;
fig. 7 is a schematic diagram of the connection of the controller.
Detailed Description
As shown in fig. 4 to 7, in this embodiment, the multi-gun dc charging pile power intelligent distribution system includes a plurality of groups and a power supply module connected to a multi-port charging unit 1, the power supply module is connected to an external mains supply to perform voltage conversion, the multi-port charging unit 1 includes at least three groups of charging gun assemblies 2 arranged in parallel, two adjacent groups of the charging gun assemblies 2 are connected through a first switch group 3, one group of the charging gun assemblies 2 are respectively connected to the non-adjacent charging gun assemblies 2 through a plurality of second switch groups 4, the charging gun assemblies 2 are connected to a vehicle to be charged in a matching manner, and each group of the charging gun assemblies 2 is connected to an output port of the power supply module.
In this embodiment, a plurality of groups of multi-port charging units 1 are arranged in parallel and connected in sequence, adjacent multi-port charging units 1 are connected through a cascade switch group, the cascade switch group comprises a plurality of third switch groups 5, and the charging gun assemblies 2 with the same number in the adjacent two groups of multi-port charging units 1 are connected through the third switch groups 5.
In this embodiment, the utility model discloses still include controller 6, power module, a plurality of first switch group 3, a plurality of second switch group 4, a plurality of third switch group 5 and a plurality of the rifle subassembly of charging 2 all with controller 6 electricity is connected.
In this embodiment, the first switch group 3, the second switch group 4, and the third switch group 5 each include a positive contact switch and a negative contact switch, and the positive contact switch and the negative contact switch are respectively connected to the positive bus bar and the negative bus bar of the charging gun assembly 2.
In this embodiment, each set of the charging gun assembly 2 is provided with a current-voltage sensor and a trigger switch, which are electrically connected to the controller 6.
The working method of the utility model comprises the following steps:
step S1, the controller 6 detects the real-time power of each group of the charging gun assemblies 2 and the state of the trigger switch through the current voltage sensor on each group of the charging gun assemblies 2, judges whether the charging gun assemblies 2 are in a power supply state, and when the trigger switch is in a conducting state and the real-time power is matched with the output power of the power supply module, the charging gun assemblies 2 are in the power supply state; when the trigger switch is in an off state and the real-time power is zero, the charging gun assembly 2 is in an idle state; when the trigger switch is in a conducting state but the real-time power is zero, judging that the charging gun assembly 2 is in a fault state;
step S2, after the controller 6 determines that the charging gun assembly 2 is in an idle state for a certain time, the controller 6 turns on the first switch group 3, the second switch group 4, or the third switch group 5 connected to the group of charging gun assemblies 2, and connects the output port of the power supply module connected to the group of charging gun assemblies 2 to another group of charging gun assemblies 2 in a power supply state to increase charging power;
step S3, the controller 6 detects the charging gun assemblies 2 with enhanced power through the corresponding current-voltage sensors, detects whether the current-voltage parameters of the group of charging gun assemblies 2 are correspondingly increased, and if the current-voltage parameters of the group of charging gun assemblies 2 are increased to a rated power, the state of the two groups of charging gun assemblies 2 connected is maintained until the state of the trigger switch of one group of charging gun assemblies 2 is changed;
and S4, when the real-time power of the charging gun assembly 2 in power supply is not increased to the rated power after connection is detected, judging the charging gun assembly 2 in the connected idle state as a fault state, and connecting the rest charging gun assemblies 2 in the idle state with the charging gun assembly 2 with power to be increased through another loop, or connecting the charging gun assembly 2 in the nearest idle state with the charging gun assembly 2 in the fault state to increase the charging power.
The single-path output of the power unit of the charger is composed of positive and negative buses, only one pole is marked in the upper figure, the number of actual switches needs to be doubled, and the number of contactor switches under three schemes is compared by taking a four-port charger, an eight-port charger and a twelve-port charger as examples:
four-port charger: the number of the annular distribution schemes is 8, the number of the one-inlet four-outlet schemes is 32, and the number of the annular distribution schemes is 12;
eight-port charger: the number of the ring distribution schemes is 16, and the number of the one-in eight-out schemes is 128; the number of the utility model is 32;
twelve-port charger: the number of the ring distribution schemes is 24; 288 in one-in-twelve-out schemes; the utility model is 52.
Therefore, the utility model discloses the realization only needs less switch block can realize the interconnection of the rifle subassembly that charges guarantees every two simultaneously the rifle subassembly that charges homoenergetic can be connected, and does not receive the influence of intermediate node damage, can guarantee to connect smoothly.

Claims (5)

1. The utility model provides a stake power intelligent distribution system is filled to many guns direct current which characterized in that: it includes that a plurality of groups are connected many mouthfuls of charging units (1) with power module, power module carries out voltage conversion with outside mains connection, many mouthfuls of charging units (1) are including the at least three group that set up side by side rifle subassembly (2) that charge, and adjacent two sets of it is connected through first switch group (3) to charge rifle subassembly (2), and is a set of it is respectively through a plurality of second switch group (4) and nonadjacent to charge rifle subassembly (2) and be connected, it is connected with the vehicle cooperation of waiting to charge rifle subassembly (2), every group charge rifle subassembly (2) all with power module's an output port is connected.
2. The system of claim 1, wherein the system comprises: a plurality of groups of multi-port charging units (1) are arranged in parallel and connected in sequence, the adjacent multi-port charging units (1) are connected through a cascade switch group, the cascade switch group comprises a plurality of third switch groups (5), and the charging gun assemblies (2) with the same number in the adjacent two groups of multi-port charging units (1) are connected through the third switch groups (5).
3. The intelligent power distribution system for multi-gun direct-current charging piles according to claim 2, characterized in that: the multi-gun direct-current charging pile power intelligent distribution system further comprises a controller (6), and the power supply module, the first switch group (3), the second switch group (4), the third switch group (5) and the charging gun assemblies (2) are all electrically connected with the controller (6).
4. The system of claim 2, wherein the system comprises: the first switch group (3), the second switch group (4) and the third switch group (5) respectively comprise a positive contact switch and a negative contact switch, and the positive contact switch and the negative contact switch are respectively connected with a positive electricity bus and a negative electricity bus of the charging gun assembly (2) correspondingly.
5. The intelligent power distribution system for multi-gun DC charging piles according to claim 3, characterized in that: and each group of charging gun assembly (2) is provided with a current-voltage sensor and a trigger switch which are electrically connected with the controller (6).
CN202220934093.5U 2022-04-22 2022-04-22 Multi-gun direct current charging pile power intelligent distribution system Active CN218054873U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220934093.5U CN218054873U (en) 2022-04-22 2022-04-22 Multi-gun direct current charging pile power intelligent distribution system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220934093.5U CN218054873U (en) 2022-04-22 2022-04-22 Multi-gun direct current charging pile power intelligent distribution system

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Publication Number Publication Date
CN218054873U true CN218054873U (en) 2022-12-16

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