CN210007455U

CN210007455U - electric automobile charging equipment suitable for public transport or logistics station

Info

Publication number: CN210007455U
Application number: CN201921067375.4U
Authority: CN
Inventors: 付海军; 王泰麟; 钟凯
Original assignee: Chengdu Zhibang Technology Co Ltd
Current assignee: Chengdu Zhibang Technology Co Ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-01-31
Anticipated expiration: 2029-07-09

Abstract

The utility model discloses an electric automobile battery charging outfit suitable for public transit or commodity circulation station belongs to new energy automobile's technical field, including many rifle that charges, the switch matrix includes a plurality of charging path groups, each charging path group all is equipped with charging path, and each charging path all is equipped with the relay, each the control end of relay all with control module links to each other, and power supply module includes a plurality of charging module groups, each charging module group all is connected with assists ac contactor, and each the control end of assisting ac contactor all with control module links to each other, each charging module group all includes charging module at least, each charging module's output is connected respectively each charging path group to reach and arrange in a flexible way with furthest to the requirement that reduces the place to the rifle that charges, realized the different strategies of charging under the different circumstances, guaranteed the interim dispatch demand, and effectively reduced the power consumption cost, realized the economy of maximize equipment and the purpose of social.

Description

electric automobile charging equipment suitable for public transport or logistics station

Technical Field

The utility model belongs to the technical field of new energy automobile, particularly, relate to kinds of electric automobile battery charging outfit that are applicable to public transit or commodity circulation station.

Background

In recent years, electric vehicles have been largely supported and pushed by governments with zero emission, and are also increasingly applied.

The public transport and logistics vehicles have the characteristics of fixed driving routes and controllable mileage, so that the electric vehicles are being rapidly applied. At present, most of charging equipment operated in the market mainly aims at quickly charging and serving social vehicles, and daily scheduling and operating costs for buses and logistics vehicles cannot be well balanced, and the charging equipment specifically comprises the following components:

(1) the existing direct current charging equipment mainly aims at meeting the demand of fast electricity supplement in daytime or temporarily for social vehicles, is not particularly optimized for buses and logistics vehicles, and is not beneficial to the service life and the overall management and scheduling of the buses or the logistics vehicles;

(2) the existing slow-speed charging equipment mainly comprises 7kW alternating current charging equipment, and cannot completely fill batteries of public transport and logistics vehicles at night, so that the vehicle endurance is influenced;

(3) present many guns (4 guns and above) are mostly with split type (the rectifier cabinet with fill electric pile separation), and every fills electric pile and need be equipped with sets of control and operating means alone, the cost increase.

SUMMERY OF THE UTILITY MODEL

In view of this, in order to solve the above-mentioned problem that prior art exists, the utility model aims at providing electric automobile battery charging outfit that are applicable to public transit or commodity circulation station in order to reach to charge the rifle and arrange in a flexible way and reduce the requirement to the place with furthest, have realized the different strategies of charging under the different situation, have guaranteed the temporary dispatching demand to effectively reduced the power consumption cost, realized the purpose of the economy and the social of maximize equipment.

The utility model adopts the technical scheme that electric automobile battery charging outfits suitable for public transit or commodity circulation station, including many rifle that charges, still include alternating current power supply and protection device, power supply module, switch matrix and control module, switch matrix includes a plurality of charging circuit groups, each charging circuit group all is equipped with respectively with each the charging circuit that corresponds and electric connection charges, and each charging circuit all is equipped with the relay, the control end of each relay all links to each other with control module, power supply module includes a plurality of charging module groups, each charging module group all is connected with supplementary ac contactor, each supplementary ac contactor's end all with alternating current power supply and protection device's output is connected, and each supplementary ac contactor's control end all with control module links to each other, each charging module group all includes at least charging module, each charging module's output connects respectively each charging circuit group.

, the control module comprises a main control module and a power control module, the signal end of each charging module is connected with the power control module in a communication way, the control end of each relay is connected with the power control module in an electric way, the power control module is connected with the main control module in a communication way, and the main control module is connected with the charging communication CAN interface of each charging gun in a communication way.

, the main control module is connected with a user interaction module, the user interaction module includes a card reader, a monitor screen and an indicator light, and the card reader, the monitor screen and the indicator light are respectively connected with the main control module.

, the main control module is connected with a wireless communication module, which is set as a 2G/3G/4G network module, a WIFI module or an Ethernet module to enrich the function of accessing the network and establish communication connection with the remote server.

, the system further comprises an auxiliary power supply, wherein the live wire phase and the zero wire phase of the three-phase alternating current power supply are connected with the auxiliary power supply through a miniature circuit breaker, the output end of the auxiliary power supply respectively supplies power to the main control module, the power control module and the low-voltage auxiliary power supply interface of each charging gun, and the low-voltage auxiliary power supply interface is used for connecting the charging gun with an off-board charger to provide a low-voltage auxiliary power supply for the electric automobile.

, the AC power supply and protection device comprises a three-phase AC power supply, a main breaker and an AC contactor, wherein the three-phase AC power supply, the main breaker and the main AC contactor are sequentially connected in series, the output end of the main AC contactor is connected with the power supply module, the three phases of the three-phase AC power supply are connected with a second miniature breaker and a lightning protection device in series, and the other end of the lightning protection device is grounded.

, the relay is set as high voltage DC relay, which can realize effective control of on/off of the charging path.

, four charging guns are arranged, and the charging module groups are four and each charging module group comprises two charging modules.

The utility model has the advantages that:

1. adopt the utility model provides an electric automobile battery charging outfit suitable for public transit or commodity circulation station, this battery charging outfit realize charging simultaneously a plurality of vehicles through many the rifle that charges, simultaneously, power supply module and respectively adopt the switch matrix to regulate and control each the module quantity of charging that the rifle actually inserts of charging between the rifle of charging to guarantee that the vehicle is in the quick electricity of benefit, the most efficient ground has utilized power supply module, in order to reach the purpose of practicing thrift the electric energy.

2. Adopt the utility model provides an electric automobile battery charging outfit suitable for public transit or commodity circulation station, it has adopted many guns that charge, can support to charge simultaneously between the many cars, respectively also can arrange in a flexible way the rifle that charges, the nimble distribution of power.

Drawings

Fig. 1 is a system flow block diagram of an electric vehicle charging device suitable for a bus or a logistics station provided by the present invention;

fig. 2 is a circuit connection diagram of the whole electric vehicle charging device suitable for the public transportation or logistics station;

fig. 3 is a schematic view of a local circuit connection of an electric vehicle charging device suitable for a bus or a logistics station;

the drawings are labeled as follows:

miniature circuit breaker-QF 1, main circuit breaker-QF, main AC contactor-ZKM, auxiliary AC contactor-FKM, second miniature circuit breaker-QF 2, third miniature circuit breaker-QF 3, lightning arrester-FLQ, fuse-FU, shunt-FL, electrostatic discharger-LD, main contactor-KM.

Detailed Description

To further clarify the objects, features and advantages of embodiments of the present invention, a more complete description of embodiments of the present invention is now provided by reference to the drawings which form a part hereof, and it is to be understood that there is described herein a partial embodiment of rather than a complete embodiment thereof.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once a item is defined in figures, it need not be further defined and explained by in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that the indication of the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is conventionally placed when the utility model is used, or the orientation or positional relationship which is conventionally understood by those skilled in the art, or the orientation or positional relationship which is conventionally placed when the utility model is used, is only for the convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as limiting the utility model, furthermore, the terms "", "second" are only used for distinguishing description, and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed" and "connected" are to be construed as , which can be, for example, fixedly connected or detachably connected or physically connected, directly connected or indirectly connected through an intermediate medium.

Example 1

The embodiment specifically provides electric vehicle charging equipment suitable for buses or logistics stations, which comprises four charging guns, wherein the four charging guns are respectively an A charging gun, a B charging gun, a C charging gun and a D charging gun, the A charging gun, the B charging gun, the C charging gun and the D charging gun can simultaneously charge a plurality of vehicles, the four charging guns are flexibly arranged, and the utilization efficiency of the charging guns is improved.

The charging system comprises a charging gun , a switch matrix and a control module, and is characterized by further comprising an alternating current power supply and protection device, a power supply module, the switch matrix and the control module, wherein the switch matrix comprises eight charging path groups, each charging path group is provided with four charging paths, the four charging paths correspond to the four charging guns respectively and are electrically connected, each charging path is provided with a relay, the relays are high-voltage direct-current relays, control ends of the relays are connected with the control module, and the control module sends an instruction to the high-voltage direct-current relays to distribute the charging modules corresponding to the charging path groups to the A/B/C/D charging guns, so that the purpose of flexibly distributing charging power to different charging guns is achieved.

The power supply module comprises four charging module groups, each charging module group is connected with an auxiliary alternating current contactor FKM, the other end of each auxiliary alternating current contactor FKM is connected with the output end of the alternating current power supply and protection device, a power supply source is provided for each auxiliary alternating current contactor FKM through the alternating current power supply and protection device, the control end of each auxiliary alternating current contactor FKM is connected with the control module, the control module sends an instruction to the auxiliary alternating current contactor FKM to adjust whether each charging module group works or not through the auxiliary alternating current contactor FKM, each charging module group comprises two charging modules, the output end of each charging module is respectively connected with the charging passage group, namely eight charging modules in total, eight charging modules (as shown in figure 3, a charging module 1-a charging module 8) are respectively connected with eight charging passage groups correspondingly, a local circuit schematic diagram provided in figure 3 is known, the negative output end of the eight charging modules is respectively connected with a direct current gun charging branch, a direct current gun charging adjustment and a gun charging passage A, B charging passage A, C charging module, a charging passage A and B charging passage A are respectively connected with a positive electrode adjustment branch of a bus charging module, a charging relay, the charging passage A branch of the bus, the bus charging module A and B charger, the bus charger is connected with the charger, the charger module A branch of the charger, the charger is connected with the charger, the.

Preferably, STM32 is adopted as the main control chips of the main control module and the power control module, an STM32 single chip microcomputer is programmed by using the prior art means to obtain the expected functional requirements, the main control module communicates with a vehicle BMS through the charging communication CAN interface of the charging gun to complete the analysis of the vehicle charging requirements and obtain the charging power data and feeds the charging power main control data back to the main control module, the main control module feeds the charging power data back to the power control module, the power control module adjusts the charging parameters (output voltage and current) in the aspect of charging, in addition, monitors and feeds the working state of each charging module to the main control module in real time so as to enable the output of the charging power data to be capable of normally charging the vehicle, and simultaneously allocates the charging parameters (output voltage and current) to the relay modules according to the current charging state control time interval and allocates the charging power control modules to the relay modules to meet the charging requirements (the charging gun control time interval) and control the charging gun modules to meet the charging requirements specifically.

In order to improve user experience of the electric vehicle charging equipment, the main control module is in communication connection with a user interaction module, the user interaction module comprises a card reader, a monitoring screen and an indicator light, the card reader, the monitoring screen and the indicator light are in communication connection with the main control module respectively, the card reader is used for reading a management card to adjust parameters of the main control module, the monitoring screen is used for providing functions of charging operation guidance, charging settlement and the like for a user, and the indicator light is used for providing equipment running state, alarm information and the like for the user.

In order to further improve the network access function of the electric vehicle charging equipment, the main control module is in communication connection with a wireless communication module, the wireless communication module is set to be a 2G/3G/4G network module, a WIFI module or an Ethernet module, wherein the model of the 2G/3G/4G network module is USR-GPRS232-7S3, the model of the WIFI module is USR-WIFI232-A, and the model of the Ethernet module is W5500, so that data communication between the electric vehicle charging equipment and a remote server is achieved.

The auxiliary power supply is mainly used for converting alternating current into low-voltage direct current required by the electric automobile BMS and the control module, a live wire phase and a zero line phase of the three-phase alternating current power supply are connected with the auxiliary power supply through an micro circuit breaker QF1, the output end of the auxiliary power supply respectively supplies power to the main control module, the power control module and low-voltage auxiliary power supply interfaces of the charging guns, the low-voltage auxiliary power supply interfaces are used for connecting the charging guns with a non-vehicle-mounted charger to provide a low-voltage auxiliary power supply for the electric automobile, the positive end of the micro circuit breaker QF1 is connected with A of the live wire phase, the negative end of the charging guns is connected with the zero line phase (N phase), and the micro circuit breaker QF1 is used for controlling the on-off.

The alternating current power supply and protection device comprises a three-phase alternating current power supply, a main circuit breaker QF and a main alternating current contactor ZKM, wherein the three-phase alternating current power supply, the main circuit breaker QF and the main alternating current contactor ZKM are sequentially connected in series, the output end of the main alternating current contactor ZKM is connected with the power supply module, three phases of the three-phase alternating current power supply are connected with a second miniature circuit breaker QF2 and a lightning arrester FLQ in series, the other end of the lightning arrester FLQ is grounded to achieve a good lightning protection effect, preferably, the alternating current power supply and protection device further comprises a cooling fan and a socket, the positive and negative poles of the cooling fan and the socket are respectively connected with the phase C and the phase N of the main circuit breaker QF to meet the power supply requirements of the cooling fan and the socket, and the phase.

Preferably, the input end of each charging gun is further connected with an electrostatic bleeder LD and a main contactor KM in sequence, the positive end of the main contactor KM is connected with a fuse FU in series, the negative end of the main contactor KM is connected with a shunt FL in series, the shunt FL performs direct current sampling, and the other ends of the fuse FU and the shunt FL are connected with the positive wire and the negative wire respectively, so as to realize real-time protection of each charging gun and real-time monitoring of the charging current of each charging gun.

On the basis of embodiment 1, the working principle of the electric vehicle charging equipment suitable for the public transport or logistics station is as follows:

(1) dividing the working time periods of the electric automobile charging equipment, and respectively defining a daytime time period and a night time period, wherein the daytime time period is set to be from eight morning hours to nine evening hours, and can be other time periods, the time period from nine evening hours to morning hours is the night time period, if the current time period is in the daytime time period, entering (2), and if the current time period is in the night time period, entering (3);

(2) the control module (main control module) performs priority sequencing according to the time sequence of inserting the charging guns into the vehicle, distributes the number of the charging modules to which the charging guns are connected according to the priority sequencing, and meets the charging requirements of the charging guns according to the priority sequencing; in this embodiment, in order to meet the demand of the vehicle for quickly supplementing electric quantity during the daytime, the control module issues an instruction to the corresponding relay to disconnect the branch leads corresponding to the charging guns C and D, so that the charging gun only capable of charging a and the charging gun only capable of charging B are realized, that is, only 2 vehicles are allowed to be charged simultaneously, and in this state, the charging gun only capable of charging a and the charging gun only capable of charging B can be charged, so that the demand of the bus and the logistics vehicle for charging during the daytime is met;

the method comprises the steps of establishing communication connection between a charging communication CAN interface on each charging gun and a vehicle BMS, monitoring charging required power of the vehicle corresponding to each charging gun in real time, judging whether the charging power of other charging guns is insufficient or not if the charging required power of the vehicle corresponding to the current charging gun is reduced by a value which is larger than or equal to the rated power of the charging module, quitting any charging module of the current charging gun and distributing the charging module to a lower priority charging gun of the current charging gun, and closing the charging module if the charging required power of the vehicle corresponding to the current charging gun is not reduced by the value.

The method comprises the following specific steps:

if the charging gun A is inserted into the th vehicle firstly, then the charging gun B is inserted into the second vehicle, at the moment, the priority of the charging gun A is greater than that of the charging gun B, and the charging gun A is the highest priority, all the charging modules are obtained, namely, all relays are controlled through a power control module to realize that all charging passages on a positive lead of the charging gun A are in a conducting state to meet the charging requirement of the th vehicle, along with continuous charging, a communication connection is established between a charging communication CAN interface on the charging gun A and a BMS of the th vehicle (the charging communication CAN interface is connected with a charging main control module, and the charging main control module is in communication connection with the BMS of the th vehicle), the charging required power of the th vehicle is monitored in real time, if the reduced value of the required power of the th vehicle is greater than or equal to the rated power of the charging module, whether the charging power of the charging gun B is enough is judged, if the charging power of the B is not enough, the 38964 charging module is shut down preferentially.

In the step, if a certain vehicle needs to be temporarily scheduled, an administrator can temporarily adjust the priority of the charging gun corresponding to the vehicle through the management card, the administrator enters an administrator interface through the management card, adjusts the priority through the monitoring screen to preferentially meet the charging requirement of the vehicle, and distributes the surplus power of the electric vehicle charging equipment to the vehicles corresponding to the charging guns with different priorities in real time according to the first-come first-get strategy.

(3) The remote server collects data information of a municipal power grid in real time, the remote server sends a charging instruction to the control module according to peak-valley periods of power utilization, the control module distributes equal number of charging modules to charging guns according to the number of charging guns currently inserted into a vehicle, namely after a night vehicle returns, if the night vehicle is in peak periods of power utilization, the charging guns A, B, C and D are respectively inserted into the vehicle without charging operation, if the night vehicle returns, the control module regulates and controls relays to enable charging paths to be conducted, and the charging guns A, B, C and D are respectively distributed with two charging modules, preferably, the charging guns are respectively provided with charging module groups, auxiliary alternating current contactors corresponding to the charging module groups are switched to a connection state, or after the night vehicle returns, if the night vehicle is in peak periods of power utilization, the charging guns A, B and C are respectively plugged into a connection state, the charging guns are respectively switched to a connection state, the charging contactors corresponding FKM are switched to a connection state, the charging modules are respectively switched to a connection state, and the FKM and the charging modules are distributed to a charging modules in peak periods, and are switched to a charging modules corresponding to a charging modules, and are switched to FKM, and the charging modules are distributed to a charging modules corresponding to enable charging modules to be switched to be in a charging modules.

In the charging method for the electric vehicle, it should be noted that in the charging path group connected with each charging module, only relays are switched on and three relays are switched off or four relays are simultaneously switched off, that is, charging modules or a plurality of charging modules can only supply power to charging guns, and a plurality of charging guns cannot be used to supply power to charging modules.

The mobile terminal is in communication connection with the control module through scanning the two-dimensional code, and the control module receives a charging or stopping charging instruction of the mobile terminal and feeds charging information back to the mobile terminal. The working principle is as follows: the mobile terminal is in communication connection with a remote server through scanning the two-dimensional code, the remote server is in communication connection with a wireless communication module, so that a charging or stopping instruction of the mobile terminal can be transmitted to a control module in real time, the control module collects charging information in real time and feeds the charging information back to the mobile terminal, and the remaining charging time and the charged amount are displayed on a charging pile APP of the mobile terminal in real time,

if the station is open to the society, the social vehicles can complete charging and settlement in a two-dimensional code scanning mode, the user can scan the two-dimensional code through the charging pile app to charge, the charging can be conducted by clicking after the code scanning is successful, the remaining charging time and the charged amount can be displayed on the app in real time, when the charging is completed, the clicking is stopped, and the maximum utilization of the charging equipment is achieved.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

The electric vehicle charging equipment suitable for the public transport or logistics stations comprises a plurality of charging guns and is characterized by further comprising an alternating current power supply and protection device, a power supply module, a switch matrix and a control module, wherein the switch matrix comprises a plurality of charging path groups, each charging path group is provided with a charging path which corresponds to each charging gun and is electrically connected with the charging gun, each charging path is provided with a relay, the control end of each relay is connected with the control module, the power supply module comprises a plurality of charging module groups, each charging module group is connected with an auxiliary alternating current contactor, the other end of each auxiliary alternating current contactor is connected with the output end of the alternating current power supply and protection device, the control end of each auxiliary alternating current contactor is connected with the control module, each charging module group comprises at least charging modules, and the output end of each charging module is connected with each charging path group.
2. The electric vehicle charging equipment suitable for the public transportation or logistics stations as claimed in claim 1, wherein the control module comprises a main control module and a power control module, a signal end of each charging module is in communication connection with the power control module, and a control end of each relay is electrically connected with the power control module; the power control module is in communication connection with a main control module, and the main control module is in communication connection with the charging communication CAN interfaces of the charging guns respectively.
3. The electric vehicle charging equipment suitable for the public transportation or logistics field station as claimed in claim 2, wherein the main control module is in communication connection with a user interaction module, the user interaction module comprises a card reader, a monitoring screen and an indicator light, and the card reader, the monitoring screen and the indicator light are in communication connection with the main control module respectively.
4. The electric vehicle charging device suitable for the public transportation or logistics field station as claimed in claim 2, wherein the main control module is in communication connection with a wireless communication module, and the wireless communication module is set as a 2G/3G/4G network module, a WIFI module or an Ethernet module.
5. The electric vehicle charging equipment suitable for the public transportation or logistics stations as claimed in claim 2, further comprising an auxiliary power supply, wherein the live line phase and the zero line phase of the three-phase alternating current power supply are connected with the auxiliary power supply through an miniature circuit breaker, and the output end of the auxiliary power supply respectively supplies power to the main control module, the power control module and the low-voltage auxiliary power supply interface of each charging gun.
6. The electric vehicle charging equipment suitable for the public transportation or logistics field station as claimed in claim 1, wherein the ac power supply and protection device comprises a three-phase ac power supply, a main circuit breaker and an ac contactor, the three-phase ac power supply, the main circuit breaker and the main ac contactor are sequentially connected in series, an output end of the main ac contactor is connected with the power supply module, three phases of the three-phase ac power supply are connected in series with a second miniature circuit breaker and a lightning protection device, and the other end of the lightning protection device is grounded.
7. The electric vehicle charging equipment suitable for the public transportation or logistics stations as claimed in claim 1, wherein the relay is a high voltage direct current relay.
8. The electric vehicle charging equipment suitable for the public transportation or logistics station as claimed in claim 1, wherein the number of the charging guns is four, the number of the charging module groups is four, and each charging module group comprises two charging modules.