[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0036] like Figure 1-3 As shown, the electric vehicle charging system of the three-dimensional parking lot in this embodiment includes an integrated charging box 1, wherein the integrated charging box 1 outputs several charging cables 2, and the ends of the charging cables 2 are connected to the first docking device 3 on the storage position of the three-dimensional garage. The first docking device 3 is arranged on the garage space 4 . Each parking plate 5 of the three-dimensional parking lot is provided with a second docking device 6 and a charging plug-in device (not shown in the figure), and the parking plate 5 drives the second docking device 6 and the charging plug-in device to move up and down, left and right, thereby When moving into or out of the parking space, when the parking plate 5 drives the second docking device 6, the charging plug-in device and the electric vehicle to park on the garage space, on the one hand, the parking of the electric vehicle is realized; The contacts of the second docking device 6 are in contact and conducting, therefore, the integrated charging box 1 can be connected to the electric vehicle through the charging cable 2, the first docking device 3, the second docking device 6, and the charging plug-in device, using the stop time Charge electric vehicles.
[0037] like Figure 4 , Figure 5 As shown, the first docking device 3 of this embodiment is preferably arranged on the translation frame 41 of the garage space 4, and the translation frame 41 is provided with a lifting mechanism 42 and a translation mechanism 43, and the lifting mechanism 42 drives the parking plate 5 and the The second docking device 6 , the charging plug-in device and the electric vehicle lift up and down, and the translation mechanism 43 drives the translation frame 41 and the parking plate 5 on the translation frame 41 , the lifting mechanism 42 and the first docking device 3 to move in the horizontal direction.
[0038] The first docking device 3 includes a mounting bracket 31 and a contact 32 embedded on the mounting bracket 31 .
[0039]The second docking device 6 in this embodiment is installed on the parking plate 5 , and the second docking device 6 includes a mounting bracket 61 , a connecting rod 62 , a contact bracket 63 and a contact 64 , and the contact 64 is installed on the contact bracket 63 , One end of the connecting rod 62 is connected to the installation bracket 61 through the rotating shaft, and the other end of the connecting rod 62 is connected to the contact bracket 63 through the rotating shaft. not shown). Preferably, the reset member is a torsion spring sleeved on the rotating shaft, one end of the torsion spring is pressed against the mounting bracket 61 , and the other end is pressed against the connecting rod 62 . The connecting rod 62 and the reset member form a buffer mechanism to avoid component damage caused by hard contact between the first docking device 3 and the second docking device 6 when the parking plate 5 is parked on the garage space 4 . This embodiment is described by taking the buffer mechanism located on the second docking device 6 as an example. Of course, the arrangement of the buffer mechanism located on the first docking device 3 is similar, so it will not be described in detail, and it is all within the protection scope of the present invention. Inside.
[0040] When the electric vehicle is parked, the electric vehicle is first parked on the parking plate 5, and the lifting mechanism 42 drives the parking plate 5 and the electric vehicle to lift to the garage space 4. After the parking plate 5 is parked in place, the first docking device 3 on the translation frame 41 is moved. It is just in contact with the second docking device 6 of the parking plate 5, and the contacts of the two are in contact with each other and conduct. Therefore, during the lifting and lowering process of the parking plate 5, the charging path is cut off, and the charging path is turned on after the lifting and lowering in place. During the process that the translation mechanism 43 drives the translation frame 41 to move horizontally, the first docking device 3 and the second docking device 6 are always in contact, so the charging path is always connected.
[0041] like Image 6 As shown, in order to ensure that when the parking space 5 moves up and down, the first docking device 3 and the second docking device 6 are not charged, the translation frame 41 is provided with a travel switch 7 whose switch portion is connected in series with the charging cable 2. The switch part is in a normally open state, when the parking board 5 is parked on the garage space 4, the parking board 5 triggers the travel switch 7, and the switch part of the travel switch 7 is closed. When the parking plate 5 descends and leaves the garage space 4, the switch part of the travel switch 7 is reset, and returns to the normally open state, and the charging path is disconnected.
[0042] like Figure 7 As shown, the integrated charging box of this embodiment includes a box body, and integrated in the box body:
[0043] The residential electricity load monitoring module is used to detect the residential electricity load W1 in this area in real time and send it to the control module.
[0044] The electric vehicle charging monitoring module is used to detect the electric vehicle charging load W2 in this area in real time and send it to the control module; it is used to detect the charging load W2i of each electric vehicle that is being charged and send it to the control module.
[0045] The electric vehicle residual power detection device is used to detect the electric vehicle residual power, calculate the reserved charging load, and send the reserved charging load to the control module.
[0046] The electric vehicle charging load monitoring module is used for real-time detection of the single-phase charging load of each electric vehicle being charged to the control module.
[0047] The detection circuit is used to detect the connection state information of the charging plug-in device, and send the connection state information of the charging plug-in device to the control module.
[0048] The control module is used to judge the relationship between W1, W2 and W. If W1+W2≤W, keep the current electric vehicle charging state or continue to charge some electric vehicles to ensure that W1+W2≤W; if W1+W2>W, Suspend the charging of some electric vehicles to ensure that W1+W2≤W. When W1+W2>W, according to the charging load W2i of each electric vehicle being charged and the charging mode, determine the electric vehicle whose charging is suspended, and suspend its charging. When W1+W2≤W, according to the charging mode of the electric vehicle to be charged and the reserved charging load, determine the electric vehicle to be charged, and start charging it. It is used to judge whether the three-phase unbalance of the charging load of each phase exceeds the rated value. When it exceeds the rated value, it will control the access phases of some electric vehicles to achieve the balance of the three-phase load.
[0049] In this embodiment, W is the total rated electricity load in the area.
[0050] The charging mode in this embodiment includes an instant charging mode and a controllable charging mode; in the instant charging mode, the electric vehicle remaining power detection device collects the remaining power of the connected electric vehicle, calculates the reserved charging load and sends it to the control module, and the control module judges the reserved charging When the charging load is less than or equal to W-W1-W2, the control module controls the charging of the electric vehicle; in the controllable charging mode, the electric vehicle remaining power detection device collects the remaining power of the connected electric vehicle and calculates the reserved charging load, delaying until the power consumption Charging during valley period.
[0051] like Figure 8 As shown, the monitoring process includes the following steps:
[0052] S1. Detect the residential electricity load W1 and the electric vehicle charging load W2 in the area in real time.
[0053] S2. Determine the relationship between the rated total electricity load W, the residential electricity load W1, and the electric vehicle charging load W2; if W1+W2≤W, go to step S3, otherwise, go to step S8.
[0054] S3. Detect whether there is an electric vehicle that needs to be continuously put into charging, if yes, go to step S4; otherwise, go to step S7.
[0055] S4. Continue to put some electric vehicles into charging, but ensure that W1+W2≤W; specifically, detect the charging mode and reserved charging load of each electric vehicle to be put into charging, and determine the charging mode according to the electric vehicle charging mode and reserved charging load. electric car and start charging it.
[0056] S5. Determine whether the charging mode of the electric vehicle is an instant charging mode.
[0057] S6. Priority is given to charging the electric vehicle in the instant charging mode. The method for putting the electric vehicle in the instant charging mode is as follows: collect the remaining power of the electric vehicle and calculate the reserved charging load. If the reserved charging load is ≤W-W1-W2, the electric vehicle is charged. If all electric vehicles in the instant charging mode are put into charging and still W1+W2≤W, the electric vehicles in the controllable charging mode can continue to be put into operation, as long as W1+W2≤W is ensured. The method for putting the electric vehicle in the controllable charging mode is the same as the method for putting the electric vehicle in the instant charging mode, and will not be repeated here.
[0058] S7. Maintain the current charging state of the electric vehicle.
[0059] S8. Suspend the charging of some electric vehicles to ensure that W1+W2≤W; specifically, detect the charging load W2i and charging mode of each electric vehicle that is being charged, and determine the electric vehicle whose charging is suspended according to the charging load W2i and charging mode of each electric vehicle. car and suspend its charging.
[0060] S9. Determine whether the charging mode of the electric vehicle is a controllable charging mode.
[0061] S10. Priority is given to suspending the charging of the electric vehicle in the controllable charging mode. The specific method for suspending the charging of electric vehicles in the controllable charging mode is to collect the remaining power of the connected electric vehicle, calculate the reserved charging load, and delay the charging. W, continue to suspend the electric vehicle in the instant charging mode until W1+W2≤W. The charging method of the electric vehicle in the suspended instant charging mode is the same as the charging method of the electric vehicle in the suspended controllable mode, and will not be repeated here.
[0062] In the above steps, it is also necessary to monitor the single-phase charging load of each electric vehicle being charged in real time, and determine whether the three-phase unbalance of the charging load of each phase exceeds the rated value. When it exceeds the rated value, control the connection of some electric vehicles. Into the phase, to achieve the balance of the three-phase load.
[0063] When charging, the user connects the charging plug-in device on the parking board to the electric vehicle, scans the QR code information of the charging plug-in device with the terminal, and sends the information of the charging plug-in device to the control module. The user can send charging start and end commands to the control module through the terminal. After the user sends the charging start command to the control module through the terminal, the control module calculates the charging strategy according to the current working state of the integrated charging box, and controls the on-off of the switch device. need. The electric energy metering device collects the power consumption information of the charging branch corresponding to the charging plug-in device and transmits it to the control module, and the charging process is monitored in real time by the control module; the control module pushes the power consumption information and charging process to the terminal, and charges at the same time , make network payment through the terminal that sends the charging plug-in device information to the control module.
[0064] like Figure 9 As shown, when the system is provided with a cloud server, the terminal directly communicates with the cloud server, and the cloud server communicates with the control module.
[0065] The terminal is used to send instructions to start and stop charging to the cloud server, and to send information about the charging plug-in device; it is used to make network payments to the cloud server;
[0066] The cloud server is used to receive the control command sent by the terminal and send the control command to the integrated charging box; it is used to receive the charging process information sent by the integrated charging box and push it to the terminal.
[0067] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
