Charging pile, charging method, device and controller

Abstract

The application provides a charging pile, a charging method, a device and a controller, and relates to the technical field of charging piles. The charging pile comprises a controller, at least two power supply modules, a gun line traction device and at least one charging gun. The gun line traction device is in communication connection with the controller, and the gun line traction device is connected with the power supply cables corresponding to the power supply modules and the gun heads of the charging guns. The controller is used for determining the target cable quantity required by the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged. In the case that the target charging gun and the vehicle to be charged are in a plugging state, the connection state of the target cable quantity of power supply cables and the gun heads of the target charging gun is controlled by the gun line traction device, so as to control the charging state of the vehicle to be charged. In the application, the power supply cables and the charging guns are separately arranged, and the extension and contraction of the power supply cables are controlled, so that the weight of the gun line during the plugging and unplugging of the charging gun is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of charging pile technology, and in particular to a charging pile, charging method, device and controller. Background Technology

[0002] The charging station can charge various types of electric vehicles according to different voltage levels. The output end of the charging station is equipped with a charging gun. After the charging gun is inserted into the charging port of the electric vehicle, the electric vehicle is charged. After charging is completed, the charging gun is pulled out from the charging port and put back into the charging station.

[0003] However, as charging stations become increasingly powerful, especially high-power DC charging stations, the charging cables in the charging guns are becoming heavier, resulting in a poor user experience when plugging and unplugging the charging guns. Therefore, effectively reducing the weight of the charging cables during plugging and unplugging is a pressing issue that needs to be addressed. Summary of the Invention

[0004] This invention provides a charging pile, charging method, device, and controller to solve the problem of heavy charging cable weight when users plug and unplug the charging gun in related technologies.

[0005] This invention provides a charging pile, comprising: a controller, at least two power modules, a charging cable traction device, and at least one charging gun, wherein:

[0006] The charging cable pulling device is communicatively connected to the controller, and the charging cable pulling device is connected to the power cable corresponding to each power module and the charging head of each charging gun.

[0007] The controller is used to determine the number of target cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged; when the target charging gun and the vehicle to be charged are in a plug-in state, the controller controls the gun cable traction device to control the connection state of the number of target cables and the gun head of the target charging gun, so as to control the charging state of the vehicle to be charged.

[0008] According to the charging pile provided by the present invention, the controller is specifically used for:

[0009] After the target charging gun is plugged into the vehicle to be charged, the gun cable pulling device is controlled to pull the target cable power cables to connect to the gun head of the target charging gun in order to charge the vehicle to be charged.

[0010] After the vehicle to be charged has finished charging, the gun cable traction device is controlled to pull the target cable power cable disconnected from the gun head of the target charging gun, and then the target charging gun is unlocked.

[0011] According to the charging pile provided by the present invention, the charging cable traction device includes traction sub-devices corresponding to each power cable, wherein:

[0012] Each of the aforementioned traction sub-devices includes: a traction motor, a guide rail assembly, and a traction cable, wherein: the power cable connects the traction motor and the guide rail assembly through the traction cable, the guide rail assembly connects to the head of the charging gun, and both the guide rail assembly and the traction motor are communicatively connected to the controller;

[0013] The controller is used to drive the traction motor to rotate, thereby driving the traction cable to slide the power cable in the guide rail assembly, and controlling the connection state between the power cable and the guide rail assembly, thereby controlling the connection state between the power cable and the charging gun head.

[0014] According to the charging pile provided by the present invention, the guide rail assembly includes a cable guide rail, a connector, and a sensor assembly, wherein:

[0015] The cable guide rail is connected to the connector, the connector is connected to the charging gun head, the sensor assembly is disposed on the inner wall of the cable guide rail, and the sensor assembly is communicatively connected to the controller. The sensor assembly is used to detect the sliding position of the power cable in the cable guide rail, and the controller is used to determine the connection status of the power cable and the charging gun head based on the sliding position of the power cable in the cable guide rail.

[0016] According to the charging pile provided by the present invention, the sensor assembly includes at least an upper pressure sensor and a lower pressure sensor, both connected to the controller, wherein:

[0017] The upper pressure sensor is disposed on the upper end of the inner wall of the cable guide rail, and the lower pressure sensor is disposed on the lower end of the inner wall of the cable guide rail.

[0018] When the power cable slides within the cable guide rail, the upper pressure sensor detects the upper pressure signal between the power cable and the upper end of the inner wall of the cable guide rail; the lower pressure sensor detects the lower pressure signal between the power cable and the lower end of the inner wall of the cable guide rail; the controller determines the sliding position of the power cable within the cable guide rail based on the upper and lower pressure signals, thereby determining the connection status between the power cable and the charging gun head.

[0019] According to the charging pile provided by the present invention, a plug is provided at one end of the power cable near the guide rail assembly, and a socket is provided inside the plug connector.

[0020] The controller is used to control the connection status between the plug and the socket, thereby controlling the connection status between the power cable and the charging gun head.

[0021] The present invention also provides a charging method for use with a charging pile as described in any of the above claims, the method comprising the following steps.

[0022] Based on the maximum charging power negotiated between the charging pile and the vehicle to be charged, the number of target cables required for the target charging gun is determined.

[0023] When the target charging gun and the vehicle to be charged are in a plugged-in state, the gun cable traction device controls the connection state of the target cable power cables to the gun head of the target charging gun, so as to control the charging state of the vehicle to be charged.

[0024] According to the charging method provided by the present invention, determining the number of target cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged includes:

[0025] Obtain the rated power of each power module in the charging pile;

[0026] Based on the maximum charging power and the rated power, determine the number of target cables required for the target charging gun.

[0027] The present invention also provides a charging device, comprising the following modules.

[0028] The determination module is used to determine the number of target cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged.

[0029] The control module is used to control the connection status of the target cable power cables and the head of the target charging gun when the target charging gun and the vehicle to be charged are in a plugged-in state, so as to control the charging status of the vehicle to be charged.

[0030] The present invention also provides a controller, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the charging method as described above.

[0031] The present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the charging method as described above.

[0032] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the charging method as described above.

[0033] The charging pile, charging method, device, and controller provided by this invention determine the number of target cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged. After the target charging gun is plugged into the vehicle, the connection state of the target cables and the charging gun head is controlled by a cable traction device to control the charging state of the vehicle. In this invention, the power cables are separated from each charging gun. When the target charging gun is plugged into or removed from the vehicle, only the weight-sensitive target charging gun needs to be operated. After the target charging gun is plugged into or before it is removed, the connection state of the heavier target cables and the charging gun head is controlled by the cable traction device to control the charging state of the vehicle. By controlling the extension and retraction of the power cables, the weight of the charging gun cables during plugging and unplugging is effectively reduced, improving the user's charging experience. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in this invention or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the charging pile provided in an embodiment of the present invention.

[0036] Figure 2 This is a schematic cross-sectional view of the gun head of the charging gun provided in an embodiment of the present invention.

[0037] Figure 3 This is a schematic diagram of the traction device provided in an embodiment of the present invention.

[0038] Figure 4 This is a schematic diagram of the guide rail assembly provided in an embodiment of the present invention.

[0039] Figure 5 This is a schematic diagram of the sliding state of the power cable provided in an embodiment of the present invention.

[0040] Figure 6 This is a schematic flowchart of the charging method provided in an embodiment of the present invention.

[0041] Figure 7 This is a schematic diagram of the charging device provided in an embodiment of the present invention.

[0042] Figure 8 This is a schematic diagram of the controller provided in an embodiment of the present invention.

[0043] Figure label:

[0044] 110: Controller; 120: Power module; 121: Power cable; 122: Plug; 123: Upper traction cable connector; 124: Lower traction cable connector; 130: Gun cable traction device; 140: Charging gun; 141: Gun head; 150: Traction sub-device; 151: Traction motor; 152: Guide rail assembly; 153: Traction cable; 154: Guide ring; 161: Cable guide rail; 162: Connector; 1621: Socket; 163: Sensor assembly; 1631: Upper pressure sensor; 1632: Lower pressure sensor. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0046] To address the issue of heavy charging cables when users plug and unplug charging guns in related technologies, this invention provides a charging station. Figure 1 This is a schematic diagram of the structure of the charging pile provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the charging station includes: a controller 110, at least two power modules 120, a charging cable traction device 130, and at least one charging gun 140.

[0047] The charging cable traction device 130 is communicatively connected to the controller 110, and the charging cable traction device 130 is connected to the power cable 121 corresponding to each power module 120 and the charging head 141 of each charging gun 140.

[0048] The controller 110 is used to determine the number of target cables required for the target charging gun 140 based on the maximum charging power negotiated between the charging pile and the vehicle to be charged; when the target charging gun 140 and the vehicle to be charged are in a plug-in state, the controller controls the gun cable traction device 130 to control the connection state of the number of target cables 121 and the gun head 141 of the target charging gun 140, so as to control the charging state of the vehicle to be charged.

[0049] Specifically, in this embodiment of the invention, the power cable 121 is separately disposed from each charging gun 140. One end of each power cable 121 is connected to the corresponding power module 120 and the charging gun cable traction device 130. When not charging, the other end of each power cable 121 is not connected to the head 141 of each charging gun 140. The head 141 of each charging gun 140 is only connected to the charging gun cable traction device 130. That is, when not charging, the head 141 of each charging gun 140 does not include the heavier power cable 121. When the vehicle to be charged needs to be charged, the controller 110 can calculate the number of power modules 120 that the target charging gun 140 can support, i.e., the number of target cables required by the target charging gun 140, through the maximum charging power negotiated between the charging pile and the vehicle to be charged. Then, before or after charging, the user can directly operate the lighter head 141 of the target charging gun 140 to control the connection status between the head 141 of the target charging gun 140 and the charging port of the vehicle to be charged. When the head 141 of the target charging gun 140 is plugged into the vehicle to be charged, the controller 110 controls the gun cable traction device 130 to control the extension and retraction of the heavy target cable and the power cables 121, so as to control the connection between the power cables 121 and the head 141 of the target charging head, thereby controlling the charging status of the vehicle to be charged, effectively reducing the weight of the gun cable during the plugging and unplugging process of the target charging gun 140.

[0050] It should be noted that the maximum charging power negotiated between the charging pile and the vehicle to be charged is the maximum charging power supported by the vehicle to be charged.

[0051] Furthermore, the controller 110 is specifically used for:

[0052] After the target charging gun 140 is connected to the vehicle to be charged, the gun cable pulling device 130 is controlled to pull the target cable power cables 121 to the gun head 141 of the target charging gun 140 to charge the vehicle to be charged.

[0053] After the vehicle to be charged has finished charging, the gun cable traction device 130 is controlled to pull the target cable power cables 121 to disconnect from the gun head 141 of the target charging gun 140, and then the target charging gun 140 is unlocked.

[0054] Specifically, before charging, the user can directly insert the lighter head 141 of the target charging gun 140 into the charging port of the vehicle to be charged. Then, the controller 110 controls the cable pulling device 130 to extend the target power cables 121 until they connect to the head 141 of the target charging gun 140, and then controls the power modules 120 of the target cables to charge the vehicle. After charging is complete, the controller 110 first controls the cable pulling device 130 to shorten the target power cables 121 until they disconnect from the head 141 of the target charging gun 140 and return to their initial state. Then, the target charging gun 140 can be unlocked, and the user is prompted to remove the target charging gun 140 from the charging port of the vehicle.

[0055] It should be noted that, Figure 2 This is a schematic diagram of the cross-sectional view of the charging gun head provided in an embodiment of the present invention, as shown below. Figure 2 As shown, the charging gun 140's head 141 includes a fixed cable ( Figure 2 (shown in blue) and at least one set of charging cables, wherein: the fixed cables include a charging communication cable, a signal line for the charging head 141, a power supply line for the charging head 141, and a ground wire, etc. Each set of charging cables includes two power cables 121 ( Figure 2 (The green portion shown) represents the positive and negative power cables, respectively. During charging, the positive power cable is connected to the positive terminal of the charging head 141, and the negative power cable is connected to the negative terminal of the charging head 141.

[0056] Optionally, after unlocking the target charging gun 140, the user can be notified through human-computer interaction or voice broadcast to remove the target charging gun 140 from the charging port of the vehicle to be charged. This embodiment of the invention does not limit this.

[0057] Furthermore, Figure 3 This is a schematic diagram of the traction device provided in an embodiment of the present invention, as shown below. Figure 3 As shown, the gun cable pulling device 130 includes a pulling sub-device 150 corresponding to each power cable 121, wherein:

[0058] Each of the aforementioned traction sub-devices 150 includes: a traction motor 151, a guide rail assembly 152, and a traction cable 153, wherein: the power cable 121 connects the traction motor 151 and the guide rail assembly 152 through the traction cable 153, the guide rail assembly 152 connects to the head 141 of the charging gun 140, and both the guide rail assembly 152 and the traction motor 151 are communicatively connected to the controller 110;

[0059] The controller 110 is used to drive the traction motor 151 to rotate, thereby driving the traction cable 153 to slide the power cable 121 in the guide rail assembly 152, and controlling the connection state of the power cable 121 with the guide rail assembly 152, thereby controlling the connection state of the power cable 121 with the head 141 of the charging gun 140.

[0060] Specifically, in the cable pulling device 130, each power cable 121 corresponds to one pulling sub-device 150, that is, each pulling sub-device 150 can control the extension and retraction state of the corresponding power cable 121, specifically as follows: Figure 3 As shown, the outer shell of the power cable 121 is provided with an upper traction cable connector 123 and a lower traction cable connector 124. The upper traction cable connector 123 is located on the outer shell of the power cable 121 near the power module 120, and the lower traction cable connector 124 is located on the outer shell of the power cable 121 near the charging gun 140. Both ends of the traction cable 153 are connected to the upper traction cable connector 123 and the lower traction cable connector 124, respectively. That is, after one end of the traction cable 153 is fixedly connected to the upper traction cable connector 123, it is connected to the traction motor 151. A guide ring 154 is provided on the guide rail assembly 152 near the charging gun 140. After the traction cable 153 is connected to the traction motor 151, it passes through the guide ring 154 and is fixedly connected to the lower traction cable connector 124. Subsequently, the controller 110 can control the rotation of the traction motor 151. Different rotation directions of the traction motor 151 result in different sliding directions of the power cable 121 in the guide rail assembly 152. For example, when the controller 110 controls the traction motor 151 to rotate forward, the traction motor 151 drives the traction cable 153 to rotate counterclockwise. The traction cable 153 can drive the power cable 121 to slide towards the charging gun 140 within the guide rail assembly 152 until the power cable 121 is plugged into the guide rail assembly 152, ensuring that the power cable 121 is connected to the head 141 of the charging gun 140 connected to the guide rail assembly 152, thereby charging the vehicle to be charged. When the controller 110 controls the traction motor 151 to rotate in the reverse direction, the traction motor 151 drives the traction cable 153 to rotate clockwise. The traction cable 153 can drive the power cable 121 to slide towards the power module 120 within the guide rail assembly 152 until the power cable 121 is disconnected and is at the entrance of the guide rail assembly 152. Then, the charging gun 140 is unlocked, and the user is notified that charging is complete.

[0061] It should be noted that the initial state of the power cable 121 is that the power cable 121 is not inside the traction device 150.

[0062] Furthermore, Figure 4 This is a schematic diagram of the guide rail assembly provided in an embodiment of the present invention, as shown below. Figure 4 As shown, the guide rail assembly 152 includes a cable guide rail 161, a connector 162, and a sensor assembly 163, wherein:

[0063] The cable guide rail 161 is connected to the connector 162, and the connector 162 is connected to the head 141 of the charging gun 140. The sensor assembly 163 is disposed on the inner wall of the cable guide rail 161 and is communicatively connected to the controller 110. The sensor assembly 163 is used to detect the sliding position of the power cable 121 in the cable guide rail 161. The controller 110 is used to determine the connection status between the power cable 121 and the head 141 of the charging gun 140 based on the sliding position of the power cable 121 in the cable guide rail 161.

[0064] Cable guide rail 161 Figure 2 The red portion shown refers to the cable guide 161, which is a flexible guide and can be made of insulating materials such as polyethylene. A lubricant can be applied to the inner wall of the cable guide 161 to reduce the resistance of the power cable 121 as it slides within it. The cable guide 161 is fixedly connected to the connector 162, and is positioned above the connector 162. Specifically, the connector 162 is connected to the cable guide 161 at the top and to the positive or negative terminal of the charging gun head 141 at the bottom.

[0065] Furthermore, a plug 122 is provided at one end of the power cable 121 near the guide rail assembly 152, and a socket 1621 is provided inside the plug-in 162;

[0066] The controller 110 is used to control the connection status between the plug 122 and the socket 1621, so as to control the connection status between the power cable 121 and the head 141 of the charging gun 140.

[0067] Specifically, such as Figure 4 As shown, a plug 122 is provided at the end of the power cable 121 near the charging gun 140. This plug 122 can be a crown spring plug, which is a conductor. A socket 1621 is provided in the connector 162, which can also be a crown spring socket, which is a conductor, and connects to the positive or negative terminal of the charging gun head 141 of the charging gun 140. After the plug 122 below the power cable 121 is inserted into the socket 1621 in the connector 162, since both the plug 122 and the socket 1621 are conductors, the power cable 121 can be connected to the charging gun head 141 of the charging gun 140. After the plug 122 below the power cable 121 is pulled out of the socket 1621 in the connector 162, the power cable 121 can be disconnected from the charging gun head 141 of the charging gun 140.

[0068] In addition, a sensor assembly 163 is provided on the inner wall of the cable guide rail 161. When the power cable 121 slides in the cable guide rail 161, the sensor assembly 163 can sense the sliding position of the power cable 121, so that the controller 110 can determine whether the power cable 121 is connected to the connector 162 based on the sliding position uploaded by the sensor assembly 163, and then determine whether the power cable 121 is connected to the head 141 of the charging gun 140.

[0069] Furthermore, such as Figure 4 As shown, the sensor assembly 163 includes at least an upper pressure sensor 1631 and a lower pressure sensor 1632, both connected to the controller 110, wherein:

[0070] The upper pressure sensor 1631 is disposed on the upper end of the inner wall of the cable guide rail 161, and the lower pressure sensor 1632 is disposed on the lower end of the inner wall of the cable guide rail 161.

[0071] When the power cable 121 slides within the cable guide rail 161, the upper pressure sensor 1631 detects the upper pressure signal between the power cable 121 and the upper end of the inner wall of the cable guide rail 161; the lower pressure sensor 1632 detects the lower pressure signal between the power cable 121 and the lower end of the inner wall of the cable guide rail 161; the controller 110 determines the sliding position of the power cable 121 within the cable guide rail 161 based on the upper pressure signal and the lower pressure signal, thereby determining the connection status between the power cable 121 and the head 141 of the charging gun 140.

[0072] Specifically, when the power cable 121 slides within the cable guide rail 161, the outer shell of the power cable 121 presses against the upper pressure sensor 1631, which then detects an upper pressure signal, indicating that the power cable 121 is in contact with the upper end of the inner wall of the cable guide rail 161. After the power cable 121 slides towards the charging gun 140, the outer shell of the power cable 121 presses against the lower pressure sensor 1632, which then detects a lower pressure signal, indicating that the power cable 121 is in contact with the lower end of the inner wall of the cable guide rail 161.

[0073] It should be noted that, Figure 5 This is a schematic diagram of the sliding state of the power cable provided in an embodiment of the present invention, as shown below. Figure 5As shown, (a) indicates that the power cable 121 is in its initial state, that is, the power cable 121 is not inside the cable guide 161. (b) indicates that the power cable 121 is in the intermediate sliding state, that is, the power cable 121 slides into the cable guide 161 to prepare to start charging, or the cable is sliding out of the cable guide 161 to prepare to end charging. (c) indicates that the power cable 121 is in the inserted state, that is, the power cable 121 slides in the cable guide 161 until the plug 122 is inserted into the socket 1621 and charging begins.

[0074] When the power cable 121 is in its initial state, the outer shell of the power cable 121 does not compress the upper pressure sensor 1631 and the lower pressure sensor 1632. At this time, both the upper pressure sensor 1631 and the lower pressure sensor 1632 output a no-pressure signal to the controller 110. The controller 110 can then confirm that the power cable 121 is in its initial state and that its sliding position is at the entrance of the cable guide rail 161. At this time, the power cable 121 is not connected to the charging gun head 141 of the charging gun 140. The traction motor 151 drives the traction cable 153 to continue sliding the power cable 121 towards the charging gun 140 within the cable guide rail 161, i.e., in the intermediate sliding state. At this time, the outer shell of the power cable 121 compresses the upper pressure sensor 1631 but not the lower pressure sensor 1632. Therefore, the upper pressure sensor 1631 outputs an upper pressure signal to the controller 110, and the lower pressure sensor 1632 outputs a no-pressure signal to the controller 110. The controller 110 can clearly determine that the power cable 121 is sliding within the cable guide 161, and that the power cable 121 is not connected to the charging gun head 141 of the charging gun 140. Then, the traction motor 151 drives the traction cable 153 to continue sliding the power cable 121 towards the charging gun 140 within the cable guide 161 until the plug 122 in the power cable 121 is inserted into the socket 1621 of the connector 162, thus reaching the fully inserted state. At this time, the outer shell of the power cable 121 presses against both the upper pressure sensor 1631 and the lower pressure sensor 1632. Therefore, the upper pressure sensor 1631 outputs an upper pressure signal to the controller 110, and the lower pressure sensor 1632 outputs a lower pressure signal to the controller 110. After receiving the upper and lower pressure signals, the controller 110 can determine that the sliding position of the power cable 121 indicates that the plug 122 of the power cable 121 is connected to the socket 1621 in the connector 162. At this time, the power cable 121 is connected to the head 141 of the charging gun 140, and the controller controls the traction motor 151 to stop rotating. After all the target number of power cables 121 are inserted into place, the controller 110 can control the target number of power modules 120 to charge the vehicle to be charged.

[0075] After charging is completed, the controller 110 can control the traction motor 151 to rotate in the opposite direction, driving the traction cable 153 to move the power cable 121 in the cable guide rail 161 towards the traction motor 151, that is, from the insertion position corresponding to (c) to the intermediate sliding position corresponding to (b). At this time, the controller 110 receives the upper pressure signal sent by the upper pressure sensor 1631 and the no pressure signal sent by the lower pressure sensor 1632, indicating that the power cable 121 is disconnected from the gun head 141 of the charging gun 140. Subsequently, the controller 110 continues to control the traction motor 151 to rotate in the opposite direction, driving the traction cable 153 to slide the power cable 121 in the cable guide 161 towards the traction motor 151, that is, sliding from the intermediate sliding state corresponding to (b) to the initial state corresponding to (a). At this time, the controller 110 receives no-pressure signals from the upper pressure sensor 1631 and the lower pressure sensor 1632, confirming that the power cable 121 is disconnected from the head 141 of the charging gun 140, and the power cable 121 returns to its initial state. At this time, the controller 110 can control the traction motor 151 to stop rotating. After all the power cables 121 in the head 141 of the charging gun 140 have returned to their initial state, the charging gun 140 can be unlocked, and the user is prompted to unplug the charging head from the charging port of the vehicle to be charged to end the charging process.

[0076] It should be noted that the charging station also includes a switch module, which connects the controller 110 and each power module 120. This switch module controls the on / off state between each power module 120 and its corresponding power cable 121. Specifically, when charging is needed, the controller 110 controls the switch module to open the circuit between the power cable 121 (which is inserted into the target charging gun 140) and the corresponding power module 120, allowing the power module 120 to charge the vehicle. After charging is complete, the controller 110 controls the switch module to disconnect the circuit between the power cable 121 and the corresponding power module 120, stopping the power module 120 from charging the vehicle.

[0077] The charging pile provided in this embodiment of the invention determines the number of target cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged by a controller. After the target charging gun and the vehicle to be charged are plugged in, the connection state of the target number of power cables to the gun head of the target charging gun is controlled by a gun cable traction device to control the charging state of the vehicle to be charged. In this embodiment of the invention, the power cables are separately set from each charging gun. When the target charging gun is plugged into or removed from the vehicle to be charged, only the target charging gun with a reduced weight needs to be operated. After the target charging gun is plugged into or before it is removed from the vehicle to be charged, the connection state of the heavier target number of power cables to the gun head of the target charging gun is controlled by the gun cable traction device to control the charging state of the vehicle to be charged. By controlling the extension and retraction of the power cables, the weight of the charging gun cables during plugging and unplugging is effectively reduced, improving the user's charging experience.

[0078] This invention also provides a charging method applicable to charging piles as described in any of the preceding embodiments. Figure 6 This is a schematic flowchart of the charging method provided in an embodiment of the present invention, as shown below. Figure 6 As shown, the method includes steps 610 and 620.

[0079] Step 610: Based on the maximum charging power negotiated between the charging pile and the vehicle to be charged, determine the number of target cables required for the target charging gun.

[0080] Specifically, after the charging pile communicates with the vehicle to be charged via the charging communication cable in the head of the target charging gun to obtain the maximum charging power supported by the vehicle to be charged, the target number of power modules required by the vehicle to be charged can be calculated based on the maximum charging power. The power modules and power cables are one-to-one, so the target number of power modules is the target number of cables required by the target charging gun.

[0081] Furthermore, determining the number of target cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged includes:

[0082] Obtain the rated power of each power module in the charging pile;

[0083] Based on the maximum charging power and the rated power, determine the number of target cables required for the target charging gun.

[0084] Specifically, after determining the maximum charging power supported by the vehicle to be charged, the rated power of each power module in the charging pile is equal. Therefore, the quotient of the maximum charging power and the rated power can be calculated, and this quotient can be rounded up to obtain the number of target cables required for the target charging gun. For example, if the maximum charging power supported by the vehicle to be charged is 100kW, and the rated power of each power module in the charging pile is 30kW, then the quotient of the maximum charging power and the rated power is 10 / 3. Rounding this quotient up, the number of target cables required for the target charging gun is 4. That is, the vehicle to be charged needs 4 power modules for charging, and 4 power cables need to be inserted into the target charging gun.

[0085] Step 620: When the target charging gun and the vehicle to be charged are in a plugged-in state, the control gun cable traction device controls the connection state of the target cable power cables to the gun head of the target charging gun, so as to control the charging state of the vehicle to be charged.

[0086] Specifically, before charging, the user can directly insert the lighter target charging gun's nozzle into the charging port of the vehicle to be charged. Then, the controller can control the cable pulling device to extend the target power cables until they connect to the target charging gun's nozzle, and then control the target power modules to charge the vehicle. After charging is complete, the controller first controls the cable pulling device to shorten the target power cables until they disconnect from the target charging gun's nozzle and return to their initial state. At this point, the target charging gun can be unlocked, and the user is prompted to remove it from the vehicle's charging port.

[0087] The charging method provided in this invention determines the number of target cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged. After the target charging gun and the vehicle to be charged are plugged in, the connection state of the target cables and the gun head of the target charging gun is controlled by a gun cable traction device to control the charging state of the vehicle to be charged. In this invention, the power cables are separated from each charging gun. When the target charging gun is plugged into or removed from the vehicle, only the target charging gun with a lighter weight needs to be operated. After the target charging gun is plugged into or before it is removed from the vehicle, the connection state of the heavier target cables and the gun head of the target charging gun is controlled by the gun cable traction device to control the charging state of the vehicle to be charged. By controlling the extension and retraction of the power cables, the weight of the charging cables during plugging and unplugging is effectively reduced, improving the user's charging experience.

[0088] The charging device provided by the present invention will be described below. The charging device described below can be referred to in correspondence with the charging method described above.

[0089] This invention also provides a charging device. Figure 7 This is a schematic diagram of the charging device provided in an embodiment of the present invention, such as... Figure 7 The charging device 700 includes a determination module 710 and a control module 720.

[0090] The determination module 710 is used to determine the number of target cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged.

[0091] The control module 720 is used to control the connection status of the target cable power cables and the head of the target charging gun when the target charging gun and the vehicle to be charged are in a plugged-in state, so as to control the charging status of the vehicle to be charged.

[0092] The charging device provided in this invention determines the number of target cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged, using a controller. After the target charging gun and the vehicle to be charged are plugged in, the connection state of the target cables and the charging gun head is controlled by a cable traction device to control the charging state of the vehicle. In this invention, the power cables are separated from each charging gun. When the target charging gun is plugged into or removed from the vehicle, only the lighter target charging gun needs to be operated. Before or after the target charging gun is removed, the connection state of the heavier target cables and the charging gun head is controlled by the cable traction device, thereby controlling the charging state of the vehicle. By controlling the extension and retraction of the power cables, the weight of the charging gun cables during plugging and unplugging is effectively reduced, improving the user's charging experience.

[0093] Optionally, the determining module 710 is specifically used for:

[0094] Obtain the rated power of each power module in the charging pile;

[0095] Based on the maximum charging power and the rated power, determine the number of target cables required for the target charging gun.

[0096] Figure 8 This is a schematic diagram of the controller provided in an embodiment of the present invention, as shown below. Figure 8As shown, the controller may include a processor 810, a communications interface 820, a memory 830, and a communication bus 840, wherein the processor 810, the communications interface 820, and the memory 830 communicate with each other via the communication bus 840. The processor 810 can call logical instructions in the memory 830 to execute a charging method, which includes:

[0097] Based on the maximum charging power negotiated between the charging pile and the vehicle to be charged, determine the number of target cables required for the target charging gun.

[0098] When the target charging gun and the vehicle to be charged are in a plugged-in state, the gun cable traction device controls the connection state of the target cable power cables to the gun head of the target charging gun, so as to control the charging state of the vehicle to be charged.

[0099] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0100] On the other hand, the present invention also provides a computer program product, the computer program product comprising a computer program that can be stored on a computer-readable storage medium, wherein when the computer program is executed by a processor, the computer is able to execute the charging method provided by the above methods, the method comprising:

[0101] Based on the maximum charging power negotiated between the charging pile and the vehicle to be charged, determine the number of target cables required for the target charging gun.

[0102] When the target charging gun and the vehicle to be charged are in a plugged-in state, the gun cable traction device controls the connection state of the target cable power cables to the gun head of the target charging gun, so as to control the charging state of the vehicle to be charged.

[0103] In another aspect, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform the charging methods provided by the methods described above, the method comprising:

[0104] Based on the maximum charging power negotiated between the charging pile and the vehicle to be charged, determine the number of target cables required for the target charging gun.

[0105] When the target charging gun and the vehicle to be charged are in a plugged-in state, the gun cable traction device controls the connection state of the target cable power cables to the gun head of the target charging gun, so as to control the charging state of the vehicle to be charged.

[0106] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0107] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A charging pile, characterized in that, include: The system comprises a controller, at least two power modules, a charging cable traction device, and at least one charging gun, wherein: The charging cable pulling device is communicatively connected to the controller, and the charging cable pulling device is connected to the power cable corresponding to each power module and the charging head of each charging gun. The controller is used to determine the number of target cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged; when the target charging gun and the vehicle to be charged are in a plug-in state, the controller controls the gun cable traction device to control the connection state of the number of target cables and the gun head of the target charging gun, so as to control the charging state of the vehicle to be charged. The gun cable pulling device includes pulling sub-devices corresponding to each power cable, wherein: Each of the aforementioned traction sub-devices includes: a traction motor, a guide rail assembly, and a traction cable, wherein: the power cable connects the traction motor and the guide rail assembly through the traction cable, the guide rail assembly connects to the head of the charging gun, and both the guide rail assembly and the traction motor are communicatively connected to the controller; The controller is used to drive the traction motor to rotate, thereby driving the traction cable to slide the power cable in the guide rail assembly, and controlling the connection state between the power cable and the guide rail assembly, thereby controlling the connection state between the power cable and the charging gun head.

2. The charging pile according to claim 1, characterized in that, The controller is specifically used for: After the target charging gun is plugged into the vehicle to be charged, the gun cable pulling device is controlled to pull the target cable power cables to connect to the gun head of the target charging gun in order to charge the vehicle to be charged. After the vehicle to be charged has finished charging, the gun cable traction device is controlled to pull the target cable power cable disconnected from the gun head of the target charging gun, and then the target charging gun is unlocked.

3. The charging pile according to claim 1, characterized in that, The guide rail assembly includes a cable guide rail, connectors, and a sensor assembly, wherein: The cable guide rail is connected to the connector, the connector is connected to the charging gun head, the sensor assembly is disposed on the inner wall of the cable guide rail, and the sensor assembly is communicatively connected to the controller. The sensor assembly is used to detect the sliding position of the power cable in the cable guide rail, and the controller is used to determine the connection status of the power cable and the charging gun head based on the sliding position of the power cable in the cable guide rail.

4. The charging pile according to claim 3, characterized in that, The sensor assembly includes at least an upper pressure sensor and a lower pressure sensor, both connected to the controller, wherein: The upper pressure sensor is disposed on the upper end of the inner wall of the cable guide rail, and the lower pressure sensor is disposed on the lower end of the inner wall of the cable guide rail. When the power cable slides within the cable guide rail, the upper pressure sensor detects the upper pressure signal between the power cable and the upper end of the inner wall of the cable guide rail; the lower pressure sensor detects the lower pressure signal between the power cable and the lower end of the inner wall of the cable guide rail; the controller determines the sliding position of the power cable within the cable guide rail based on the upper and lower pressure signals, thereby determining the connection status between the power cable and the charging gun head.

5. The charging pile according to claim 3, characterized in that, The power cable has a plug at one end near the guide rail assembly, and the connector has a socket inside. The controller is used to control the connection status between the plug and the socket, thereby controlling the connection status between the power cable and the charging gun head.

6. A charging method, characterized in that, Applied to a charging pile as described in any one of claims 1-5, the method comprises: Based on the maximum charging power negotiated between the charging pile and the vehicle to be charged, determine the number of target cables required for the target charging gun. When the target charging gun and the vehicle to be charged are in a plugged-in state, the gun cable traction device controls the connection state of the target cable power cables to the gun head of the target charging gun, so as to control the charging state of the vehicle to be charged.

7. The charging method according to claim 6, characterized in that, The determination of the number of target cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged includes: Obtain the rated power of each power module in the charging pile; Based on the maximum charging power and the rated power, determine the number of target cables required for the target charging gun.

8. A charging device, characterized in that, The device is applied to a charging pile as described in any one of claims 1-5, the device comprising: The determination module is used to determine the number of target cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged. The control module is used to control the connection status of the target cable power cables and the head of the target charging gun when the target charging gun and the vehicle to be charged are in a plugged-in state, so as to control the charging status of the vehicle to be charged.

9. A controller comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that, When the processor executes the computer program, it implements the charging method as described in claim 6 or 7.

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