AGV (Automatic Guided Vehicle) battery replacement system

Abstract

The utility model discloses an AGV (Automatic Guided Vehicle) battery changing system, which comprises an AGV, a charger, a main BMS (Battery Management System) collector and a dispatching center, the AGV comprises a main power battery and an auxiliary battery, the main power battery is provided with a first battery plug connector, the AGV is provided with a second battery plug connector, the charger is provided with a third battery plug connector, and the battery charger is provided with a second battery plug connector. The main BMS collector is connected with the charger and the first battery plug connector, and the main BMS collector is connected with the dispatching center through a local area network. According to the utility model, the AGV can be replaced without power failure during the power replacement, the communication interruption with the dispatching center caused by the power loss of the AGV in the power replacement process is prevented, the AGV is restarted after power failure, and the dispatching center is connected again for a long time, so that the service life of the AGV is prolonged, and the overall operation efficiency of the AGV is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery replacement, and in particular to an AGV battery replacement system. Background Art

[0002] Now unmanned warehousing is becoming more and more a development trend, so the application of handling AGV vehicles (i.e., automated guided transport vehicles) in warehousing and transportation is becoming more and more widespread. AGV vehicles use battery packs as driving power. When the power of the battery pack is close to exhaustion, it needs to be replenished in time. Most of them adopt automatic charging working mode, that is, through the charging brush plate end installed on the automatic guided vehicle, contact the charging electrode on the charging pile to perform charging operations. However, this charging method requires the AGV vehicle to maintain a connection with the charging equipment as a whole until the battery is full. During the charging process, the AGV vehicle cannot work, so a lot of time will be wasted. Using multiple AGV vehicles to work alternately will increase production costs.

[0003] Normally, when an AGV vehicle needs to swap batteries, it will shut down and request a battery swap. The battery swap station will start the battery swap operation, take out the battery pack and place it in the charging position, and then place the fully charged battery pack in the AGV vehicle. Although the downtime of the AGV vehicle can be shortened during this battery swap process, the battery swap process itself may take a certain amount of time. If the battery swap time is too long, it may affect the overall operating efficiency of the AGV vehicle. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present utility model is to provide an AGV battery replacement system that can continuously shut down the AGV vehicle when replacing its battery, thereby preventing the frequent starting of the AGV vehicle during the battery replacement process, and the problem of loss of connection with the dispatching center due to long startup time. It can also extend the service life of the AGV vehicle and improve the overall operating efficiency of the AGV vehicle.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: an AGV battery replacement system, including an AGV vehicle, a charger, a main BMS collector, and a dispatching center. The AGV vehicle includes a main power battery and a secondary battery. The main power battery is provided with a first battery connector, the AGV vehicle is provided with a second battery connector, and the charger is provided with a third battery connector. The first battery connector is cooperatively connected with the second battery connector and the third battery connector. The first battery connector is connected to the third battery connector and the secondary battery of the charger. The first battery connector is connected to a BMS battery management unit, and the second battery connector is connected in series with a power unit, a DC / DC unit, and a PLC control unit. The PLC control unit is connected to the secondary battery, the first battery connector, and the second battery connector. The main BMS collector is connected to the charger and the first battery connector, and the main BMS collector is connected to the dispatching center through a local area network.

[0006] As a preferred solution, the dispatch center is connected to a virtual server, a host computer, and a cloud platform.

[0007] As a preferred solution, the BMS battery management unit transmits data to the virtual server, the virtual server transmits data to the dispatching center, and the main BMS collector transmits data to the charger. At the same time, the main BMS collector transmits the data fed back by the charger to the dispatching center, and the virtual server forwards it to the BMS battery management unit, and the BMS battery management unit then forwards it to the AGV vehicle.

[0008] As a preferred solution, the host computer is connected to a virtual server, and the virtual server saves the data of the main power battery and pushes it to the host computer in the local area network.

[0009] As a preferred solution, the cloud platform is connected to the virtual server, and the cloud platform includes a PC terminal or a mobile phone terminal.

[0010] As a preferred solution, the BMS battery management unit and the charger are provided with a wireless unit, and the BMS battery management unit and the charger are connected to the virtual server via the wireless unit.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model can replace the power without interruption when the AGV vehicle replaces the power, thereby preventing the communication with the dispatching center from being interrupted due to power loss of the AGV vehicle during the power replacement process. The AGV vehicle needs a long time to be restarted and connect to the dispatching center again, thereby extending the service life of the AGV vehicle and improving the overall operation efficiency of the AGV vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a principle block diagram of the utility model;

[0013] List of illustration symbols: AGV vehicle 1, charger 2, main BMS collector 3, dispatch center 4, main power battery 5, auxiliary battery 6, first battery connector 7, second battery connector 8, third battery connector 9, BMS battery management unit 10, power unit 11, DC / DC unit 12, PLC control unit 13, virtual server 14, host computer 15, cloud platform 16, wireless unit 17, first battery positive pin 18, first battery negative pin 19, first communication pin 20, first switch indicator pin 21, second battery positive pin 22, second battery negative pin 23, second communication pin 24, third battery positive pin 25, third battery negative pin 26, third communication pin 27, discharge interface 28, charging interface 29. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with specific embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0015] Example:

[0016] like Figure 1 As shown, an AGV battery replacement system includes an AGV vehicle 1, a charger 2, a main BMS collector 3, and a dispatch center 4. The AGV vehicle 1 includes a main power battery 5 and a secondary battery 6. The main power battery 5 is provided with a first battery connector 7, the AGV vehicle 1 is provided with a second battery connector 8, and the charger 2 is provided with a third battery connector 9. The first battery connector 7 is matched with the second battery connector 8 and the third battery connector 9 to be connected. The first battery connector 7 is connected to the third battery connector 9 and the secondary battery 6 of the charger 2. The first battery connector 7 is connected to a BMS battery management unit 10. The second battery connector 8 is serially connected with a power unit 11, a DC / DC unit 12, and a PLC control unit 13. The PLC control unit 13 is connected to the secondary battery 6, the first battery connector 7, and the second battery connector 8. The main BMS collector 3 is connected to the charger 2 and the first battery connector 7, and the main BMS collector 3 is connected to the dispatch center 4 through a local area network.

[0017] Preferably, the dispatch center 4 is connected to a virtual server 14 , a host computer 15 , and a cloud platform 16 .

[0018] More preferably, the BMS battery management unit 10 transmits data to the virtual server 14, the virtual server 14 transmits data to the dispatch center 4, and the main BMS collector 3 transmits data to the charger 2. At the same time, the main BMS collector 3 transmits the data fed back by the charger 2 to the dispatch center 4, and the virtual server 14 forwards it to the BMS battery management unit 10, and the BMS battery management unit 10 then forwards it to the AGV vehicle 1.

[0019] Specifically, two-way data interaction is achieved through the virtual server 14.

[0020] More preferably, the host computer 15 is connected to the virtual server 14 , and the virtual server 14 saves the data of the main power battery 5 and pushes it to the host computer 15 in the local area network.

[0021] Specifically, the host computer 15 can save data in real time, and in actual use, the operating status of each device can be viewed in real time by accessing the IP address of the server on the WEB side.

[0022] More preferably, the cloud platform 16 is connected to the virtual server 14, and the cloud platform 16 includes a PC terminal or a mobile phone terminal.

[0023] Specifically, the cloud platform 16 can monitor the operating status of the charger 2 and the main power battery 5 in real time on the Internet.

[0024] Preferably, the BMS battery management unit 10 and the charger 2 are provided with a wireless unit 17 , and the BMS battery management unit 10 and the charger 2 are connected to the virtual server 14 via the wireless unit 17 .

[0025] Specifically, data is exchanged through a wireless network, so that the operating status of each device can be viewed in real time.

[0026] In a specific implementation, the first battery connector 7 includes a first battery positive pin 18, a first battery negative pin 19, a first communication pin 20, and a first switch indicator pin 21; the second battery connector 8 includes a second battery positive pin 22, a second battery negative pin 23, and a second communication pin 24; the third battery connector 9 includes a third battery positive pin 25, a third battery negative pin 26, and a third communication pin 27; the auxiliary battery 6 is provided with a discharge interface 28 and a charging interface 29, and the discharge interface 28 is connected to the PLC control The charging interface 29 is connected to the first battery connector 7 of the main power battery 5. During the specific battery replacement operation, the AGV vehicle 1 will be powered off and stopped during the battery replacement and request a battery replacement. The battery replacement station starts to perform the battery replacement operation, takes out the main power battery 5 and places it in the charging position to connect it to the charger 2. At this time, the first battery connector 7 of the main power battery 5 is connected with the third battery connector 9 of the charger 2, as follows: the first battery positive pin 18 is connected to the third battery positive pin 25, and the first battery negative pin 19 is connected to the third battery negative pin The first communication pin 26 is connected, the first communication pin 20 is connected to the third communication pin 27, and the first communication pin 20 and the third communication pin 27 are both connected to the main BMS collector 3, and then the other fully charged main power battery 5 is placed in the AGV vehicle 1. At this time, the first battery connector 7 of the fully charged main power battery 5 is connected with the second battery connector 8 of the AGV vehicle 1, as follows: the first battery positive pin 18 is connected to the second battery positive pin 22, the first battery negative pin 19 is connected to the second battery negative pin 23, and the first battery positive pin 18 is connected to the second battery positive pin 22. A communication pin 20 is connected to a second communication pin 24, and the first communication pin 20 and the second communication pin 24 are connected to the PLC control unit 13. In addition, the first communication pin 20 and the first switch indicator pin 21 are connected to the BMS battery management unit 10, the second battery positive pin 22 and the second battery negative pin 23 are connected to the power unit 11, and a DC / DC charger is connected in series between the first battery positive pin 18, the first battery negative pin 19 and the charging interface 29, and the charging interface 29 is connected to the first communication pin 20.

[0027] The utility model adopts the auxiliary battery 6 to power the AGV vehicle 1 when the AGV vehicle 1 changes power, which can replace the power without interruption, thus preventing the AGV vehicle 1 from losing connection with the dispatch center 4 during the power replacement process, extending the service life of the AGV vehicle 1, and improving the overall operation efficiency of the AGV vehicle 1. When the auxiliary battery 6 is low on power, the main power battery 5 can charge the auxiliary battery 6.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An AGV battery replacement system, characterized in that: It includes an AGV vehicle, a charger, a main BMS collector, and a dispatching center. The AGV vehicle includes a main power battery and a secondary battery. The main power battery is provided with a first battery connector, the AGV vehicle is provided with a second battery connector, and the charger is provided with a third battery connector. The first battery connector is cooperatively connected with the second battery connector and the third battery connector. The first battery connector is connected with the third battery connector and the secondary battery of the charger. The first battery connector is connected with a BMS battery management unit. The second battery connector is serially connected with a power unit, a DC / DC unit, and a PLC control unit. The PLC control unit is connected with the secondary battery, the first battery connector, and the second battery connector. The main BMS collector is connected with the charger and the first battery connector, and the main BMS collector is connected with the dispatching center through a local area network.

2. The AGV battery replacement system according to claim 1, characterized in that: The dispatch center is connected to a virtual server, a host computer, and a cloud platform.

3. The AGV battery replacement system according to claim 2, characterized in that: The BMS battery management unit transmits data to the virtual server, the virtual server transmits data to the dispatching center, and the main BMS collector transmits data to the charger. At the same time, the main BMS collector transmits the data fed back by the charger to the dispatching center, and the virtual server forwards it to the BMS battery management unit, and the BMS battery management unit then transfers it to the AGV vehicle.

4. The AGV battery replacement system according to claim 2, characterized in that: The host computer is connected to the virtual server, and the virtual server saves the data of the main power battery and pushes it to the host computer in the local area network.

5. The AGV battery replacement system according to claim 2, characterized in that: The cloud platform is connected to the virtual server, and the cloud platform includes a PC terminal or a mobile phone terminal.

6. The AGV battery replacement system according to claim 2, characterized in that: The BMS battery management unit and the charger are provided with a wireless unit, and the BMS battery management unit and the charger are connected to the virtual server through the wireless unit.

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