CN207967969U - A kind of DC charging system - Google Patents

A kind of DC charging system Download PDF

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Publication number
CN207967969U
CN207967969U CN201721818353.8U CN201721818353U CN207967969U CN 207967969 U CN207967969 U CN 207967969U CN 201721818353 U CN201721818353 U CN 201721818353U CN 207967969 U CN207967969 U CN 207967969U
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China
Prior art keywords
charging
power supply
output
unit
switch
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CN201721818353.8U
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Chinese (zh)
Inventor
李习东
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New Energy (shenzhen) Co Ltd
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New Energy (shenzhen) Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The utility model provides a kind of DC charging system, it includes multiple charging units, each charging unit includes the charge power supply of a main control unit and multiple and different specifications, the anode and cathode of the charge power supply are connected to the anode and cathode of corresponding charging output end group by switch respectively, the anode and cathode of the charge power supply are further connected by switching with the cathode power supply busbar and negative power supply busbar being connected between multiple charging units, and the main control unit of the multiple charging unit is connected with each other.Output power of power supply can be adjusted flexibly in the DC charging system of the utility model.

Description

A kind of DC charging system
Technical field
The utility model is related to field of power supplies, more particularly to a kind of DC charging system.
Background technology
The in the industry cycle extensive use of multi-output power supply system, multi output charging use is very frequent for charging industry, right It is various in charging vehicle type, charge power size identical property and bad unification and low voltage high current and high pressure low current Selection, this proposed for power-supply system how flexible configuration power, how to carry out diversification charging and how to configure high pressure The problem of low pressure charges.
When a set of distribution system can only provide fixed certain power, and in cell or charging station both need to fill it is high-power Such as when 350KW and small-power 30KW or 60KW, distribution system has to apply for that more powerful transformer makes to meet With, expend money while, be not met by Operation at full power.
Utility model content
In view of this, it is necessary to provide a kind of DC charging system that output power of power supply can be adjusted flexibly, to ensure Need high-power overabsorption some power supplys output, small few distribution some power supplys output of power, required for different automobile types Power regulation output power size.
In the utility model embodiment, a kind of DC charging system, including multiple charging units are provided, it is each to charge Device all includes the charge power supply of a main control unit and multiple and different specifications, and the anode and cathode of the charge power supply lead to respectively Anode and cathode that switch is connected to corresponding charging output end group are crossed, the anode and cathode of the charge power supply further lead to It crosses to switch and be connected with the cathode power supply busbar and negative power supply busbar being connected between multiple charging units, the multiple charging The main control unit of device is connected with each other.
In the utility model embodiment, each charging unit further includes a communication module, the communication module It is connected respectively with the multiple switch in charging unit where the main control unit and its.
In the utility model embodiment, the communication module is connected by communication bus with the multiple switch.
In the utility model embodiment, the communication bus is CAN bus or RS485 buses.
In the utility model embodiment, the switch is relay, semiconductor switch pipe or microcontactor.
In the utility model embodiment, overcurrent protective device, reverse protection are further provided in the charging unit Device and warning device.
Compared with prior art, the DC charging system of the utility model has the characteristics that following several respects:
1. control is simple, power is flexibly allocated, real only by the connection of communication and the main control unit in charging module The flexible control of the outbound course and system output pattern to power supply system is showed;Each charging can be allowed electric by controlling signal Source is discrete to be charged to each system output system, and all modules and machine can also be allowed to be output to the output system all the way of host system System.
2. control accuracy is high, main control unit can accurately send commands to each charge power supply and be switched with control, simultaneously It can accurately be interacted by communication between each charging unit, the output state of each system can accurately be fed back to very much Main control unit;
3. control medium it is flexible, under equal conditions output control switch can select relay, semiconductor switch pipe, Small micro contactor etc.;
4. safeguard measure is complete, included overcurrent, reverse protection circuit and alarm inside power module itself, different Can actively it be isolated in the case of often, it is ensured that the safety of system;
5. using convenient and efficient, it is really achieved intelligent flexible charging, can both allow in each charging unit discrete fills To the output system of each charging unit, all charging units and machine can also be allowed to be output to the output system all the way of host system System, is really achieved soft protective system reasonable demand and is not take up resource.
Description of the drawings
Fig. 1 is the structural schematic diagram of the DC charging system of the utility model embodiment one.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.
The realization of the utility model is described in detail below in conjunction with specific embodiment.
It should be noted that this system is a kind of DC charging system, wherein a charging unit can be used as host, remaining Charging unit is as slave, by communication control, all charging units may be implemented and machine is to an output end group, can also divide Vertical equalization is output to all output end groups, is truly realized system power flexibly allotment and output, flexibly matches according to actual needs It sets, six groups of output systems of this system A, B, C, D, E, F are described, and system output is not limited to 6 groups above, can be according to reality Increase the number of output, thinking can be consistent.
As shown in Figure 1, in the utility model embodiment, a kind of DC charging system, including multiple chargings dress are provided 1 is set, each charging unit 1 includes the charge power supply 3 of a main control unit 2 and multiple and different specifications, the charging electricity The anode and cathode in source 3 are connected to corresponding charging output end group by switch 4 respectively(A, B, C, D, E or F)Anode and it is negative Pole, the anode and cathode of the charge power supply 3 further pass through switch 4 and the anode being connected between multiple charging units 1 Power source bus 5 is connected with negative power supply busbar 6, and the main control unit 2 of the multiple charging unit 1 is connected with each other.
Further, each charging unit 1 further includes a communication module(It is not shown), the communication module difference It is connected with the multiple switch 4 where the main control unit 2 and its in charging unit.The communication module by communication bus with The multiple switch 4 is connected.The communication bus can be CAN bus or RS485 buses.
The switch 4 is relay, semiconductor switch pipe or microcontactor.Further it is arranged in the charging unit 1 There are overcurrent protective device, reverse protection and warning device, to be protected to the charging unit 1.
The operation principle of above-mentioned DC charging system is as follows:
In above-mentioned DC charging system, the main control unit of one of charging unit is as host, remaining multiple charging dress It is slave to set, and output circuit can and machine output or discrete fill:And when machine output, the charging unit as host Main control unit transmitting order to lower levels give each charge power supply and switch so that the charge power supply of two slaves and the charging electricity of host Simultaneously machine is all output to output end group A in source, and output power is system nominal Maximum Power Output at this time;It is discrete when filling, it is each The main control unit of supply unit respectively at this point, simultaneously machine control switch does not conform to put down by each charge power supply of transmitting order to lower levels and switch It is assigned to the respective two-way output circuit of each supply unit, output power is system nominal Maximum Power Output at this time 1/N。
In conclusion the DC charging system of the utility model has the characteristics that following several respects:
1. control is simple, power is flexibly allocated, real only by the connection of communication and the main control unit in charging module The flexible control of the outbound course and system output pattern to power supply system is showed;Each charging can be allowed electric by controlling signal Source is discrete to be charged to each system output system, and all modules and machine can also be allowed to be output to the output system all the way of host system System.
2. control accuracy is high, main control unit can accurately send commands to each charge power supply and be switched with control, simultaneously It can accurately be interacted by communication between each charging unit, the output state of each system can accurately be fed back to very much Main control unit;
3. control medium it is flexible, under equal conditions output control switch can select relay, semiconductor switch pipe, Small micro contactor etc.;
4. safeguard measure is complete, included overcurrent, reverse protection circuit and alarm inside power module itself, different Can actively it be isolated in the case of often, it is ensured that the safety of system;
5. using convenient and efficient, it is really achieved intelligent flexible charging, can both allow in each charging unit discrete fills To the output system of each charging unit, all charging units and machine can also be allowed to be output to the output system all the way of host system System, is really achieved soft protective system reasonable demand and is not take up resource.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model Protection domain within.

Claims (6)

1. a kind of DC charging system, which is characterized in that including multiple charging units, each charging unit includes a master control The charge power supply of unit and multiple and different specifications, the anode and cathode of the charge power supply are connected to accordingly by switch respectively Charge output end group anode and cathode, the charge power supply anode and cathode further by switch be connected to it is multiple Cathode power supply busbar between charging unit is connected with negative power supply busbar, and the main control unit of the multiple charging unit is mutual Connection.
2. DC charging system as described in claim 1, which is characterized in that each charging unit further includes a communication mould Block, the communication module are connected with the multiple switch in charging unit where the main control unit and its respectively.
3. DC charging system as claimed in claim 2, which is characterized in that the communication module by communication bus with it is described Multiple switch is connected.
4. DC charging system as claimed in claim 3, which is characterized in that the communication bus is that CAN bus or RS485 are total Line.
5. DC charging system as claimed in claim 3, which is characterized in that the switch is relay, semiconductor switch pipe Or microcontactor.
6. DC charging system as described in claim 1, which is characterized in that be further provided with overcurrent in the charging unit Protective device, reverse protection and warning device.
CN201721818353.8U 2017-12-22 2017-12-22 A kind of DC charging system Active CN207967969U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721818353.8U CN207967969U (en) 2017-12-22 2017-12-22 A kind of DC charging system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721818353.8U CN207967969U (en) 2017-12-22 2017-12-22 A kind of DC charging system

Publications (1)

Publication Number Publication Date
CN207967969U true CN207967969U (en) 2018-10-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721818353.8U Active CN207967969U (en) 2017-12-22 2017-12-22 A kind of DC charging system

Country Status (1)

Country Link
CN (1) CN207967969U (en)

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