A shared rail type electric vehicle charging system and method

Abstract

The present invention discloses a shared track type electric vehicle charging system, comprising a suspended track, an AGV trolley, a mobile charging station, a navigation unit and a touch-slip conductive device, the touch-slip conductive device comprising a touch-slip wire and a current collector, the mobile charging station receiving power from the touch-slip wire through the current collector, the mobile charging station comprising an AGV main control, a charging main control, a wireless network module, a main drive motor, a charging wire, a cable tie, a cable storage wheel, and a cable storage wheel driving motor, the AGV main control and the charging main control can receive control instructions and / or send status information through the wireless network module, the AGV main control controls the main drive motor and the cable storage wheel driving motor, the charging main control controls charging, the charging plug is adapted to the charging socket of the electric vehicle and is connected to the charging wire through the cable tie, and the charging plug comprises an automatic locking device and an automatic disengagement device matched with the charging of the electric vehicle. The present invention improves the utilization rate and convenience of use of the electric vehicle charging equipment.

Description

Technical Field

[0001] The present invention relates to the field of smart city technology, and in particular to a shared track type electric vehicle charging system and method. Background Art

[0002] At present, the development technology of China's charging pile industry has the following defects and deficiencies:

[0003] 1. Uneven distribution of charging infrastructure construction: According to authoritative statistics, the ratio of new energy vehicles to public charging piles in China is 8.7:1. However, there are also major problems in the distribution of charging facilities. The main distribution places of charging piles in China are public underground parking lots, parking lots in residential and office areas, gas stations or highway service areas. Among them, some places in many regions, such as underground parking lots in shopping malls, have relatively many idle charging piles, while some places with large traffic such as schools and hospitals have problems with insufficient charging piles and queuing for charging.

[0004] 2. Fuel vehicles "occupy" charging parking spaces: The shortage of parking spaces in Chinese cities has been a long-standing problem. In addition, due to profit factors in some parking lots and the lack of "self-discipline" of some car owners, electric vehicle charging spaces are often occupied by fuel vehicles.

[0005] 3. Since charging piles are installed in fixed parking spaces, there is resource utilization rate, and the core of the sharing economy cannot be improved.

[0006] Therefore, technicians in this field are committed to developing a shared track electric vehicle charging system and method. Summary of the invention

[0007] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is how to improve the utilization rate and convenience of use of electric vehicle charging equipment.

[0008] To achieve the above-mentioned purpose, the present invention provides a shared track type electric vehicle charging system, comprising a suspended track arranged above a parking space in a parking lot, an AGV trolley configured to be movable on the track, a mobile charging station fixedly connected to the AGV trolley, a navigation unit configured to determine the position information of the AGV trolley and a touch-slip conductive device, the touch-slip conductive device comprising a touch-slip wire and a current collector, the mobile charging station receiving power from the touch-slip wire through the current collector, the mobile charging station comprising an AGV main control, a charging main control, a wireless network module, a main drive motor, a charging wire, a wire harness, a wire storage wheel, and a wire storage wheel drive motor, the The AGV master control and the charging master control can receive control instructions and / or send status information through the wireless network module. The AGV master control is configured to control the main drive motor and the wire storage wheel drive motor, and the charging master control is configured to control charging. The main drive motor is configured to drive the AGV trolley to move on the track, and the wire storage wheel drive motor is configured to rotate the wire storage wheel so that the charging cable can be stored on the wire storage wheel. The charging plug is adapted to the charging socket of the electric vehicle and is connected to the charging cable through the cable tie, and the charging plug includes an automatic locking device and an automatic disengagement device that cooperate with the charging of the electric vehicle.

[0009] Furthermore, the navigation unit includes an RFID reader arranged on the AGV trolley and an RFID tag arranged on the track. When the RFID reader and the RFID tag are close to each other, the navigation unit is configured to send the position information corresponding to the RFID tag to the AGV master control.

[0010] Furthermore, the contact wire is fixedly installed along the lateral direction of the track, the current collector is fixedly set to the AGV vehicle and is slidable relative to the contact wire, the current collector includes a shell, a terminal fixedly set on the shell and a carbon brush, the terminal is electrically connected to the carbon brush, and the carbon brush is in slidable contact with the contact wire.

[0011] Furthermore, the current collector further comprises a cleaning brush fixed on the shell, and the cleaning brush and the contact wire are in sliding contact.

[0012] Furthermore, the automatic locking device includes an electromagnetic lock arranged at the end of the charging plug and matching with the charging socket.

[0013] Furthermore, the automatic disengagement device comprises a slide block which is arranged at the end of the charging plug and can be pushed and pulled, and the slide block is configured to enable the charging socket to be disengaged from the charging plug.

[0014] Furthermore, the automatic disengagement device also includes an electric push rod fixedly arranged inside the charging plug, the electric push rod having a fixed end and a movable end, the movable end of the electric push rod is fixedly connected to the slider and is configured to be extendable or retractable relative to the fixed end.

[0015] Furthermore, the charging plug also includes a position sensor that can indicate that the charging plug is inserted into the charging socket.

[0016] Furthermore, the electric vehicle charging system also includes a network control terminal, a city-level management platform, a third-party settlement center, and an operation and maintenance client. The network control terminal, the city-level management platform, and the operation and maintenance client are communicatively connected to the mobile charging station via the Internet. The city-level management platform is communicatively connected to the third-party settlement center. The network control terminal is configured to send an appointment request to the city-level management platform. The city-level management platform is configured to distribute tasks to the mobile charging station. The mobile charging station is configured to receive tasks, charge, and feed back charging results to the city-level management platform. The operation and maintenance client is configured to send operation and maintenance instructions to the mobile charging station and receive feedback status signals. The third-party settlement center is configured to settle charges for electric vehicle charging.

[0017] The present invention also provides a charging method for the shared track type electric vehicle charging system as described above, comprising the following steps:

[0018] a) The mobile charging station receives the electric vehicle charging control instructions through the wireless network module;

[0019] b) Automatically navigate the AGV according to the position information required by the charging control instructions;

[0020] c) determining that the AGV has reached the charging position based on the position information determined by the navigation unit;

[0021] d) Control the rotation of the cable storage wheel to release the charging cable to an operable position above the electric vehicle to be charged;

[0022] e) The user manually extends the charging plug to the electric vehicle charging position;

[0023] f) Insert the charging plug into the charging socket of the electric vehicle, and the automatic locking device locks the charging plug and the charging socket to automatically charge the electric vehicle;

[0024] g) When the mobile charging station detects that charging is complete, it automatically stops charging and the automatic locking device is unlocked;

[0025] h) The automatic disengagement device of the charging plug is actuated, so that the charging plug is separated from the charging socket;

[0026] i) The automatic disengagement device of the charging plug is reset, and the wire storage wheel is controlled to rotate to retract the charging wire to the wire storage wheel;

[0027] j) The mobile charging station enters standby mode, waiting for the next task.

[0028] Beneficial effects of the present invention:

[0029] 1. By installing track-mounted suspended mobile charging stations in parking lots, all mixed parking spaces can be shared, which greatly reduces the investment in fixed charging piles and realizes the core value of the sharing economy.

[0030] 2. The automatic disengagement device of the charging socket and the automatic recycling of the charging cable can greatly improve the efficiency of the charging equipment, save users' valuable time, enhance user experience and convenience, and provide support for the promotion and popularization of new energy vehicles.

[0031] 3. Through the "Internet +" model, self-service charging reservation and settlement can be realized, making the electric vehicle charging process efficient and flexible.

[0032] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a shared track type electric vehicle charging system according to a preferred embodiment of the present invention;

[0034] Figure 2 It is a structural schematic diagram of a touch-slip conductive device of a preferred embodiment of the present invention;

[0035] Figure 3 is a schematic structural diagram of a charging plug according to a preferred embodiment of the present invention;

[0036] Figure 4 is a schematic diagram of a shared rail-type electric vehicle charging system according to another preferred embodiment of the present invention;

[0037] Figure 5 It is a flow chart of a shared track type electric vehicle charging system according to another preferred embodiment of the present invention.

[0038] Among them, 1-track, 2-contact slide line, 3-collector, 4-AGV trolley, 5-mobile charging station, 61-AGV main control, 62-charging main control, 7-main drive motor, 8-pulley, 9-cable tie, 10-charging cable, 11-charging plug, 12-storage wheel, 13-pivot, 14-storage wheel drive motor, 15-transmission device, 16-RFID reader, 17-RFID tag, 18-housing, 19-terminal, 20-carbon brush, 21-cleaning brush, 22-electromagnetic lock, 23-slider, 24-electric push rod, 25-Internet, 26-network control terminal, 27-city-level management platform, 28-operation and maintenance client, 29-third-party settlement center. DETAILED DESCRIPTION

[0039] The following describes several preferred embodiments of the present invention with reference to the drawings in the specification, so that the technical content is clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned in the text.

[0040] In the drawings, components with the same structure are indicated by the same numerical reference numerals, and components with similar structures or functions are indicated by similar numerical reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is appropriately exaggerated in some places in the drawings.

[0041] Example 1

[0042] Figure 1 A shared rail-type electric vehicle charging system is shown. A suspended rail 1 is installed above a parking space in a public parking lot, and a touch-slip conductive device is laid along the side direction of the rail 1. The touch-slip conductive device includes a touch-slip wire 2 and a current collector 3 fixed to an Automated Guided Vehicle (AGV) trolley 4. Multiple mobile charging stations 5 with AGV trolleys 4 are arranged on each set of rails 1. The mobile charging station 5 is powered by the touch-slip conductive device, and the main drive motor 7 is controlled by the AGV main control 61 to drive the pulley 8 of the AGV trolley 4, so that the AGV trolley 4 moves on the rail 1. The mobile charging station 5 connects the charging line 10 to the charging plug 11 through an elastically retractable and bendable cable tie 9. When the mobile charging station 5 is in standby mode, the charging line 10 is wrapped around the cable storage wheel 12 in the mobile charging station 5.

[0043] The user reserves a parking space to be charged through a network control terminal (such as a desktop computer, mobile phone, tablet computer, etc.) (for example, through a mobile phone APP or mini program). The electric vehicle charging system sends a command to the mobile charging station 5 on the corresponding track 1 through the wireless network module built into the mobile charging station 5. The AGV car 4 moves the mobile charging station 5 to the corresponding reserved parking space. The AGV car 4 is equipped with an RFID reader 16. An RFID tag 17 containing parking space location information is affixed to the corresponding parking space in the parking lot on the track 1. When the RFID reader 16 approaches the RFID tag 17, the location information corresponding to the RFID tag 17 is sent to the AGV main control 61. When the AGV trolley 4 arrives at the reserved parking space, the mobile charging station 5 controls the rotation of the wire storage wheel drive motor 14 through the AGV main control 61, and the wire storage wheel drive motor 14 drives the wire storage wheel 12 to rotate around the pivot 13 through the transmission device 15 (such as a chain or belt, etc.), and automatically releases the charging plug 11 to an operable position above the electric vehicle. The user manually stretches the charging plug 11 (through the elastically retractable and bendable cable tie 9) to the charging position of the electric vehicle and inserts it into the charging socket of the electric vehicle. The charging main control 62 activates the automatic locking device to lock the charging plug 11 and the charging socket, and automatically charges the electric vehicle. The mobile charging station 5 is equipped with a charging monitoring system. When it is detected that the battery is fully charged, the charging main control 62 automatically stops charging, unlocks the automatic locking device, and drives the charging plug 11 The automatic disengagement device automatically disengages the charging plug 11 from the electric vehicle charging socket, and the mobile charging station 5 controls the wire storage wheel drive motor 14 to rotate through the AGV main control 61, and the wire storage wheel drive motor 14 drives the wire storage wheel 12 to rotate around the pivot 13 through the transmission device 15 (such as a chain or belt, etc.). The charging line 10 is retracted to the wire storage wheel 12 of the mobile charging station, and the mobile charging station 5 enters a standby state, waiting for the next task.

[0044] like Figure 2 As shown, the contact-slip conductive device is composed of a contact-slip wire 2 and a hub, the hub includes an electrically insulating housing 18, a terminal 19 and a conductive carbon brush 20, the terminal 19 is connected to the carbon brush 20, and the carbon brush 20 is in sliding contact with the contact-slip wire 2. Preferably, a cleaning brush 21 is also installed on the collector, and when the collector moves in the moving direction (indicated by the arrow in the figure), the residue on the contact-slip wire 2 can be removed to keep the contact-slip wire 2 clean.

[0045] like Figure 3As shown, this embodiment is provided with an automatic locking device and an automatic disengagement device that match the charging of the electric vehicle on the basis of a universal electric vehicle charging plug. The automatic locking device includes an electromagnetic lock 22 that is arranged at the end of the charging plug and matches the charging socket. The automatic disengagement device includes a semi-arc push-pull slider 23 arranged on both sides of the end of the charging plug and an electric push rod 24 arranged inside the charging plug. The electric push rod 24 has a fixed end and a movable end. The movable end of the electric push rod 24 is connected to the slider 23. The movable end of the electric push rod 24 can be extended or retracted relative to the fixed end, so that the charging socket can be separated from the charging plug. Preferably, the charging plug also includes a position sensor, such as a proximity switch, a photoelectric switch or a Hall sensor, which is used to indicate that the charging plug is reliably inserted into the charging socket and send this state to the charging main control 62. When the monitoring charging is completed, the charging main control 62 releases the automatic locking device, and through the slider 23, the electric push rod 24 applies a thrust to push the charging plug away from the charging socket of the electric vehicle. After the slider 23 is reset, the charging cable recovery device (storage wheel) of the mobile charging station recovers the charging cable.

[0046] Example 2

[0047] This embodiment provides a charging method for the shared rail-type electric vehicle charging system as described above, comprising the following steps:

[0048] a) The mobile charging station receives the electric vehicle charging control instructions through the wireless network module;

[0049] b) Automatically navigate the AGV according to the position information required by the charging control instructions;

[0050] c) determining that the AGV has reached the charging position based on the position information determined by the navigation unit;

[0051] d) Control the rotation of the cable storage wheel to release the charging cable to an operable position above the electric vehicle to be charged;

[0052] e) The user manually extends the charging plug to the electric vehicle charging position;

[0053] f) Insert the charging plug into the charging socket of the electric vehicle, and the automatic locking device locks the charging plug and the charging socket to automatically charge the electric vehicle;

[0054] g) When the mobile charging station detects that charging is complete, it automatically stops charging and the automatic locking device is unlocked;

[0055] h) The automatic disengagement device of the charging plug is actuated, so that the charging plug is separated from the charging socket;

[0056] i) The automatic disengagement device of the charging plug is reset, and the wire storage wheel is controlled to rotate to retract the charging wire to the wire storage wheel;

[0057] j) The mobile charging station enters standby mode, waiting for the next task.

[0058] Example 3

[0059] like Figure 4 As shown, a shared rail-type electric vehicle charging system includes N mobile charging stations 5 with AGV trolleys. The mobile charging station 5 communicates with the wired or wireless Internet 25 through a wireless network module, and the network control terminal 26, the city-level management platform 27, and the operation and maintenance client 28 communicate with the mobile charging station 5 through the Internet 25. Preferably, the city-level management platform 27 is connected to a third-party settlement center 29 to realize self-service reservation charging and settlement.

[0060] like Figure 5 As shown, the network control terminal (such as a desktop, mobile phone, tablet computer, etc.) sends a reservation request (for example, through a mobile phone APP or applet) to the city-level management platform. The city-level management platform distributes tasks to mobile charging stations. The mobile charging station receives the task, moves to the reserved parking space, releases the charging plug, and starts charging when the charging plug is in place. When the charging is detected to be complete, the charging plug is detached and the charging line is recovered. After that, the mobile charging station enters the standby state, and the charging result data is fed back to the city-level management platform, and the self-test signal is fed back regularly. The operation and maintenance client sends operation and maintenance instructions to the mobile charging station and receives the feedback status signal. The third-party settlement center settles the charges for electric vehicle charging.

[0061] The preferred specific embodiments of the present invention are described in detail above. It should be understood that ordinary technicians in the field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by technicians in the technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. A shared track type electric vehicle charging system, comprising a suspended track arranged above a parking space, an AGV vehicle configured to be movable on the track, a mobile charging station fixedly connected to the AGV vehicle, a navigation unit configured to determine the position information of the AGV vehicle, and a touch-slip conductive device, characterized in that: The touch-slip conductive device includes a touch-slip wire and a current collector, the mobile charging station receives power from the touch-slip wire through the current collector, the mobile charging station includes an AGV main control, a charging main control, a wireless network module, a main drive motor, a charging wire, a charging plug, a cable tie, a wire storage wheel, and a wire storage wheel drive motor, the AGV main control and the charging main control can receive control instructions and / or send status information through the wireless network module, the AGV main control is configured to control the main drive motor and the wire storage wheel drive motor, the charging main control is configured to control charging, the main drive motor is configured to drive the AGV trolley to move on the track, the wire storage wheel drive motor is configured to rotate the wire storage wheel so that the charging wire can be stored on the wire storage wheel, and the charging plug is adapted to the electric vehicle. The charging socket is connected to the charging cable through the cable tie, and the charging plug includes an automatic locking device and an automatic disengagement device that cooperate with the charging of the electric vehicle; the navigation unit includes an RFID reader arranged on the AGV trolley and an RFID tag arranged on the track, and when the RFID reader and the RFID tag are close, the navigation unit is configured to send the position information corresponding to the RFID tag to the AGV main control; the contact line is fixedly installed along the lateral direction of the track, the collector is fixedly set to the AGV trolley and can slide relative to the contact line, the collector includes a shell, a terminal fixedly set on the shell and a carbon brush, the terminal is electrically connected to the carbon brush, and the carbon brush is in slidable contact with the contact line.

2. The shared rail type electric vehicle charging system as claimed in claim 1, characterized in that: The current collector further comprises a cleaning brush fixed on the housing, and the cleaning brush and the contact wire are in sliding contact.

3. The shared rail type electric vehicle charging system as claimed in claim 1, characterized in that: The automatic locking device comprises an electromagnetic lock arranged at the end of the charging plug and matched with the charging socket.

4. The shared rail type electric vehicle charging system as claimed in claim 1, characterized in that: The automatic disengagement device comprises a slide block which is arranged at the end of the charging plug and can be pushed and pulled, and the slide block is configured to enable the charging socket to be disengaged from the charging plug.

5. The shared rail type electric vehicle charging system as claimed in claim 4, characterized in that: The automatic disengagement device also includes an electric push rod fixedly arranged inside the charging plug, the electric push rod having a fixed end and a movable end, the movable end of the electric push rod is fixedly connected to the slider and is configured to be extendable or retractable relative to the fixed end.

6. The shared rail type electric vehicle charging system as claimed in claim 1, characterized in that: The charging plug also includes a position sensor that can indicate that the charging plug is inserted into the charging socket.

7. The shared rail type electric vehicle charging system as claimed in claim 1, characterized in that: The electric vehicle charging system also includes a network control terminal, a city-level management platform, a third-party settlement center, and an operation and maintenance client. The network control terminal, the city-level management platform, and the operation and maintenance client are connected to the mobile charging station through the Internet. The city-level management platform is connected to the third-party settlement center. The network control terminal is configured to send an appointment request to the city-level management platform. The city-level management platform is configured to distribute tasks to the mobile charging station. The mobile charging station is configured to receive tasks, charge and feedback charging results to the city-level management platform. The operation and maintenance client is configured to send operation and maintenance instructions to the mobile charging station and receive feedback status signals. The third-party settlement center is configured to settle charges for electric vehicle charging.

8. A charging method for a shared rail-type electric vehicle charging system as claimed in claim 1, characterized in that: The following steps are involved: a) The mobile charging station receives the electric vehicle charging control instructions through the wireless network module; b) Automatically navigate the AGV according to the position information required by the charging control instructions; c) Determining that the AGV has reached the charging position based on the position information determined by the navigation unit; d) Control the rotation of the cable storage wheel to release the charging cable to an operable position above the electric vehicle to be charged; e) The user manually extends the charging plug to the electric vehicle charging position; f) Insert the charging plug into the charging socket of the electric vehicle, and the automatic locking device locks the charging plug and the charging socket to automatically charge the electric vehicle; g) When the mobile charging station detects that charging is complete, it automatically stops charging and the automatic locking device is unlocked; h) The automatic disengagement device of the charging plug is actuated, so that the charging plug is separated from the charging socket; i) The automatic disengagement device of the charging plug is reset, and the cable storage wheel is controlled to rotate to retract the charging cable to the cable storage wheel; j) The mobile charging station enters standby mode, waiting for the next task.

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