Charging pile, charging method and device and controller

Abstract

The invention provides a charging pile, a charging method, a charging device and a controller, and relates to the technical field of charging piles.The charging pile comprises the controller, at least two power modules, a gun line traction device and at least one charging gun, the gun wire traction device is connected with a power supply cable corresponding to each power supply module and a gun head of each charging gun; the controller is used for determining the number of target cables required by the target charging gun based on the maximum charging power after negotiation between the charging pile and the to-be-charged vehicle; and under the condition that the target charging gun and the to-be-charged vehicle are in the plug-in state, the gun wire traction device is controlled to control the connection state of the target cable number of the power cables and the gun head of the target charging gun so as to control the charging state of the to-be-charged vehicle. According to the invention, the power supply cable and each charging gun are separately arranged, and the gun wire weight when the charging gun is plugged and unplugged is effectively reduced by controlling the extension and retraction of the power supply cable.

Description

Technical Field

[0001] The present invention relates to the technical field of charging piles, and in particular to a charging pile, a charging method, a device and a controller. Background Art

[0002] The charging pile can charge various types of electric vehicles according to different voltage levels. The output end of the charging pile 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 pile.

[0003] However, as the power of charging piles increases, especially high-power DC charging piles, the gun wire in the charging gun becomes heavier, resulting in a very poor user experience when plugging and unplugging the charging gun. Therefore, how to effectively reduce the weight of the gun wire when plugging and unplugging the charging gun is an urgent problem to be solved. Summary of the invention

[0004] The present invention provides a charging pile, a charging method, a device and a controller, which are used to solve the defect in the related art that the gun line is heavy when the user plugs in and out the charging gun.

[0005] The present invention provides a charging pile, comprising: a controller, at least two power modules, a gun line pulling device and at least one charging gun, wherein: The gun line pulling device is communicatively connected with the controller, and the gun line pulling device is connected with the power cables corresponding to each power module and the gun head of each charging gun; The controller is used to determine the target number of 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 plugged-in state, control the gun line traction device to control the connection state of the target number of power cables and the gun head of the target charging gun to control the charging state of the vehicle to be charged.

[0006] According to the charging pile provided by the present invention, the controller is specifically used for: After the target charging gun is plugged into the vehicle to be charged, the gun line pulling device is controlled to pull the target number of power cables to connect with the gun head of the target charging gun to charge the vehicle to be charged; After the charging of the vehicle to be charged is completed, the gun line pulling device is controlled to pull the target number of power cables to disconnect them from the gun head of the target charging gun, and then the target charging gun is unlocked.

[0007] According to the charging pile provided by the present invention, the gun line traction device includes a traction sub-device corresponding to each power cable, wherein: Each of the traction sub-devices comprises: a traction motor, a guide rail assembly and a traction cable, wherein: the power cable is connected to the traction motor and the guide rail assembly through the traction cable, the guide rail assembly is connected to the gun head of the charging gun, and the guide rail assembly and the traction motor are both communicatively connected to the controller; The controller is used to drive the traction motor to rotate, so as to drive the traction cable to drive the power cable to slide in the guide rail assembly, control the connection state of the power cable and the guide rail assembly, and control the connection state of the power cable and the gun head of the charging gun.

[0008] 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: The cable guide is connected to the connector, and the connector is connected to the gun head of the charging gun. The sensor assembly is arranged on the inner wall of the cable guide, 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, and the controller is used to determine the connection status of the power cable and the gun head of the charging gun based on the sliding position of the power cable in the cable guide.

[0009] According to the charging pile provided by the present invention, the sensor assembly comprises at least an upper pressure sensor and a lower pressure sensor both connected to the controller, wherein: The upper pressure sensor is arranged at the upper end of the inner wall of the cable guide rail, and the lower pressure sensor is arranged at the lower end of the inner wall of the cable guide rail; When the power cable slides in the cable guide, the upper pressure sensor is used to detect the upper pressure signal between the power cable and the upper end of the inner wall of the cable guide; the lower pressure sensor is used to detect the lower pressure signal between the power cable and the lower end of the cable guide; the controller is used to determine the sliding position of the power cable in the cable guide based on the upper pressure signal and the lower pressure signal, so as to determine the connection status of the power cable and the gun head of the charging gun.

[0010] According to the charging pile provided by the present invention, a plug is provided at one end of the power cable close to the guide rail assembly, and a socket is provided in the connector; The controller is used to control the connection state between the plug and the socket, so as to control the connection state between the power cable and the gun head of the charging gun.

[0011] The present invention also provides a charging method, which is applied to the charging pile as described in any one of the above items, and the method comprises the following steps.

[0012] Based on the maximum charging power negotiated between the charging pile and the vehicle to be charged, a target number of cables required for the target charging gun is determined.

[0013] When the target charging gun and the vehicle to be charged are in a plugged-in state, the gun line pulling device controls the connection state of the target number of power cables and the gun head of the target charging gun to control the charging state of the vehicle to be charged.

[0014] According to the charging method provided by the present invention, the determining of the target number of 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: Obtaining the rated power corresponding to each power module in the charging pile; Based on the maximum charging power and the rated power, a target number of cables required for the target charging gun is determined.

[0015] The present invention also provides a charging device, comprising the following modules.

[0016] The determination module is used to determine the target number of cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged.

[0017] The control module is used to control the gun line pulling device to control the connection status of the target number of power cables and the gun head of the target charging gun when the target charging gun and the vehicle to be charged are in a plug-in state, so as to control the charging state of the vehicle to be charged.

[0018] The present invention also provides a controller, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, any of the charging methods described above is implemented.

[0019] The present invention also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the charging method described above is implemented.

[0020] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the charging method described above is implemented.

[0021] The charging pile, charging method, device and controller provided by the present invention determine the target number of cables required by the target charging gun according to the maximum charging power negotiated between the charging pile and the vehicle to be charged through the controller. After the target charging gun and the vehicle to be charged are in a plugged-in state, the connection state of the target number of cables and the gun head of the target charging gun is controlled by controlling the gun line traction device to control the charging state of the vehicle to be charged. In the present invention, the power cable is separated from each charging gun. When the target charging gun is plugged in to the vehicle to be charged or the target charging gun is unplugged from the vehicle to be charged, only the target charging gun with a heavy weight needs to be operated. After the target charging gun is plugged in to the vehicle to be charged or before the target charging gun is unplugged from the vehicle to be charged, the connection state of the target number of cables and the gun head of the target charging gun is controlled by the gun line traction device to control the charging state of the vehicle to be charged. By controlling the expansion and contraction of the power cable, the weight of the gun line when the charging gun is plugged in and out is effectively reduced, thereby improving the charging experience of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of a charging pile provided in an embodiment of the present invention.

[0024] Figure 2 It is a schematic cross-sectional view of a gun line in a gun head of a charging gun provided in an embodiment of the present invention.

[0025] Figure 3 It is a schematic structural diagram of a traction device provided in an embodiment of the present invention.

[0026] Figure 4 It is a schematic structural diagram of a guide rail assembly provided in an embodiment of the present invention.

[0027] Figure 5 It is a schematic diagram of the sliding state of the power cable provided by an embodiment of the present invention.

[0028] Figure 6 It is a flow chart of a charging method provided by an embodiment of the present invention.

[0029] Figure 7 It is a schematic diagram of a flow chart of a charging device provided in an embodiment of the present invention.

[0030] Figure 8 It is a schematic diagram of the structure of a controller provided by an embodiment of the present invention.

[0031] Reference numerals: 110: controller; 120: power module; 121: power cable; 122: plug; 123: upper traction cable connector; 124: lower traction cable connector; 130: gun line traction device; 140: charging gun; 141: gun head; 150: traction device; 151: traction motor; 152: guide rail assembly; 153: traction cable; 154: guide ring; 161: cable guide; 162: connector; 1621: socket; 163: sensor assembly; 1631: upper pressure sensor; 1632: lower pressure sensor. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In view of the problem in the related art that the gun wire is heavy when the user plugs in and out the charging gun, an embodiment of the present invention provides a charging pile. Figure 1 is a schematic diagram of the structure of a charging pile provided by an embodiment of the present invention, such as Figure 1 As shown, the charging pile includes: a controller 110 , at least two power modules 120 , a gun line pulling device 130 and at least one charging gun 140 .

[0034] The gun line pulling device 130 is in communication connection with the controller 110 , and the gun line pulling device 130 is connected to the power cables 121 corresponding to each power module 120 and the gun heads 141 of each charging gun 140 .

[0035] The controller 110 is used to determine the target number of cables required by 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 plugged-in state, the gun line traction device 130 controls the connection state of the target number of power cables 121 and the gun head 141 of the target charging gun 140 to control the charging state of the vehicle to be charged.

[0036] Specifically, in the embodiment of the present invention, the power cable 121 is separated from each charging gun 140, and one end of each power cable 121 is connected to the corresponding power module 120 and the gun line pulling device 130. When in a non-charging state, the other end of each power cable 121 is not connected to the gun head 141 of each charging gun 140, and the gun head 141 of each charging gun 140 is only connected to the gun line pulling device 130, that is, when in a non-charging state, the gun head 141 of each charging gun 140 does not include a heavy 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, that is, the target number of cables required by the target charging gun 140, through the maximum charging power negotiated between the charging pile and the vehicle to be charged. Afterwards, before or after charging, the user can directly operate the gun head 141 of the target charging gun 140 with a lighter weight to control the connection state of the gun head 141 of the target charging gun 140 and the charging port of the vehicle to be charged. When the gun head 141 of the target charging gun 140 is in a plugged-in state with the vehicle to be charged, the controller 110 controls the gun wire traction device 130 to control the extension and retraction state of the power cables 121 with heavier weight, so as to control the connection state between the power cables 121 and the gun head 141 of the target charging head, and then controls the charging state of the vehicle to be charged, thereby effectively reducing the gun wire weight during the plugging and unplugging process of the target charging gun 140.

[0037] 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.

[0038] Furthermore, the controller 110 is specifically configured to: After the target charging gun 140 is plugged into the vehicle to be charged, the gun line pulling device 130 is controlled to pull the target number of power cables 121 to connect with the gun head 141 of the target charging gun 140 to charge the vehicle to be charged; After the charging of the to-be-charged vehicle is completed, the gun line pulling device 130 is controlled to pull the target number of power cables 121 to disconnect them from the gun head 141 of the target charging gun 140 , and then the target charging gun 140 is unlocked.

[0039] Specifically, before charging, the user can directly operate the gun head 141 of the lighter target charging gun 140 to plug it into the charging port of the vehicle to be charged. Afterwards, the controller 110 can control the gun line traction device 130 to pull the target number of power cables 121 to extend until they are connected to the gun head 141 of the target charging gun 140, and then control the target number of power modules 120 to charge the vehicle to be charged. After charging is completed, the controller 110 first controls the gun line traction device 130 to pull the target number of power cables 121 to shorten until they are disconnected from the gun head 141 of the target charging gun 140 and restored to the initial state, then the target charging gun 140 can be unlocked, and the user is prompted to unplug the target charging gun 140 from the charging port of the vehicle to be charged.

[0040] It should be noted that Figure 2 FIG. 1 is a schematic cross-sectional view of a gun line in a gun head of a charging gun provided in an embodiment of the present invention. Figure 2 As shown, the gun line in the gun head 141 of the charging gun 140 includes a fixed cable ( Figure 2 The blue part shown) and at least one set of charging cables, wherein: the fixed cables include charging communication cables, gun head 141 signal lines, gun head 141 power lines and ground lines, etc. Each set of charging cables includes two power cables 121 ( Figure 2 The positive power cable is connected to the positive pole of the gun head 141, and the negative power cable is connected to the negative pole of the gun head 141.

[0041] Optionally, after the target charging gun 140 is unlocked, the user may be notified through human-computer interaction or language broadcasting to unplug the target charging gun 140 from the charging port of the vehicle to be charged, which is not limited in this embodiment of the present invention.

[0042] Further, Figure 3 is a schematic diagram of the structure of the traction device provided by an embodiment of the present invention, such as Figure 3 As shown, the gun line traction device 130 includes a traction sub-device 150 corresponding to each power cable 121, wherein: Each of the traction sub-devices 150 includes: a traction motor 151, a guide rail assembly 152 and a traction cable 153, wherein: the power cable 121 is connected to the traction motor 151 and the guide rail assembly 152 through the traction cable 153, the guide rail assembly 152 is connected to the gun head 141 of the charging gun 140, and the guide rail assembly 152 and the traction motor 151 are both communicatively connected to the controller 110; The controller 110 is used to drive the traction motor 151 to rotate, so as to drive the traction cable 153 to drive the power cable 121 to slide in the guide rail assembly 152, and control the connection status between the power cable 121 and the guide rail assembly 152, so as to control the connection status between the power cable 121 and the gun head 141 of the charging gun 140.

[0043] Specifically, in the gun line traction device 130, each power cable 121 corresponds to a traction sub-device 150, that is, each traction sub-device 150 can control the extension state of the corresponding power cable 121, specifically: Figure 3 As shown, an upper traction cable connector 123 and a lower traction cable connector 124 are provided on the housing of the power cable 121, wherein the upper traction cable connector 123 is provided on the housing of the power cable 121 at one end close to the power module 120, and the lower traction cable connector 124 is provided on the housing of the power cable 121 at one end close to the charging gun 140. The two ends of the traction cable 153 are respectively connected to the upper traction cable connector 123 and the lower traction cable connector 124, 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 at one end of the guide rail assembly 152 close to the charging gun 140, and the traction cable 153 passes through the guide ring 154 after being connected to the traction motor 151, and is fixedly connected to the lower traction cable connector 124. Afterwards, the controller 110 can control the traction motor 151 to rotate, and the rotation direction of the traction motor 151 is different, and the sliding direction of the power cable 121 in the guide rail assembly 152 is different. 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, and the traction cable 153 can drive the power cable 121 to slide in the guide rail assembly 152 toward the charging gun 140 until the power cable 121 is plugged into the guide rail assembly 152, ensuring that the power cable 121 is connected to the gun head 141 of the charging gun 140 connected to the guide rail assembly 152, and then charging the vehicle to be charged. When the controller 110 controls the traction motor 151 to rotate reversely, the traction motor 151 drives the traction cable 153 to rotate clockwise, and the traction cable 153 can drive the power cable 121 to slide in the guide rail assembly 152 toward the power module 120 until the power cable 121 is disconnected and the power cable 121 is at the entrance of the guide rail assembly 152, then the charging gun 140 is unlocked and the user is prompted that charging is over.

[0044] It should be noted that the initial state of the power cable 121 is that the power cable 121 is not in the traction device 150 .

[0045] Further, Figure 4 is a schematic diagram of the structure of the guide rail assembly provided by an embodiment of the present invention, such as Figure 4 As shown, the guide rail assembly 152 includes a cable guide rail 161, a connector 162 and a sensor assembly 163, wherein: The cable guide 161 is connected to the connector 162, and the connector 162 is connected to the gun head 141 of the charging gun 140. The sensor assembly 163 is arranged on the inner wall of the cable guide 161, and the sensor assembly 163 is communicatively connected with the controller 110. The sensor assembly 163 is used to detect the sliding position of the power cable 121 in the cable guide 161. The controller 110 is used to determine the connection status of the power cable 121 and the gun head 141 of the charging gun 140 based on the sliding position of the power cable 121 in the cable guide 161.

[0046] The cable guide 161 is Figure 2 The red part shown, the cable guide 161 is a flexible guide, and the cable guide 161 can be made of insulating materials such as polyethylene. Lubricating material can be applied to the inner wall of the cable guide 161 to reduce the sliding resistance of the power cable 121 when the power cable 121 slides in the cable guide 161. The cable guide 161 is fixedly connected to the connector 162, and the cable guide 161 is arranged above the connector 162, that is, the connector 162 is connected to the cable guide 161 on the top, and connected to the positive pole of the gun head 141 of the charging gun 140 or the negative pole of the gun head 141 on the bottom.

[0047] Furthermore, a plug 122 is provided at one end of the power cable 121 close to the guide rail assembly 152, and a socket 1621 is provided in the connector 162; The controller 110 is used to control the connection state between the plug 122 and the socket 1621 , so as to control the connection state between the power cable 121 and the gun head 141 of the charging gun 140 .

[0048] Specifically, Figure 4 As shown, a plug 122 is provided at one end of the power cable 121 near the charging gun 140, and the plug 122 may be a crown spring plug, which is a conductor. A socket 1621 is provided in the connector 162, and the socket 1621 may be a crown spring socket, which is a conductor and is connected to the positive pole of the gun head 141 of the charging gun 140 or the negative pole of the gun head 141. After the plug 122 below the power cable 121 is plugged 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 gun head 141 of the charging gun 140. After the plug 122 below the power cable 121 is pulled out from the socket 1621 in the connector 162, the power cable 121 can be disconnected from the gun head 141 of the charging gun 140.

[0049] In addition, a sensor component 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 component 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 according to the sliding position uploaded by the sensor component 163, and then determine whether the power cable 121 is connected to the gun head 141 of the charging gun 140.

[0050] Furthermore, if 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: The upper pressure sensor 1631 is disposed at the upper end of the inner wall of the cable guide rail 161 , and the lower pressure sensor 1632 is disposed at the lower end of the inner wall of the cable guide rail 161 ; When the power cable 121 slides in the cable guide 161, the upper pressure sensor 1631 is used to detect the upper pressure signal between the power cable 121 and the upper end of the inner wall of the cable guide 161; the lower pressure sensor 1632 is used to detect the lower pressure signal between the power cable 121 and the lower end of the cable guide 161; the controller 110 is used to determine the sliding position of the power cable 121 in the cable guide 161 based on the upper pressure signal and the lower pressure signal, so as to determine the connection status of the power cable 121 and the gun head 141 of the charging gun 140.

[0051] Specifically, when the power cable 121 slides in the cable guide 161, the outer shell of the power cable 121 squeezes the upper pressure sensor 1631, and the upper pressure sensor 1631 can detect 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 161; after the power cable 121 slides toward the charging gun 140, the outer shell of the power cable 121 squeezes the lower pressure sensor 1632, and the lower pressure sensor 1632 can detect 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 161.

[0052] It should be noted that Figure 5 is a schematic diagram of a power cable sliding state provided by an embodiment of the present invention, such as Figure 5As shown, (a) indicates that the power cable 121 is in the initial state, that is, the power cable 121 is not in the cable guide 161. (b) indicates that the power cable 121 is in the intermediate sliding state, that is, the power cable 121 is inserted into the cable guide 161 to start charging, or the cable is in the process of sliding out of the cable guide 161 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 plugged into the socket 1621, and charging starts.

[0053] When the power cable 121 is in the initial state, the shell of the power cable 121 does not squeeze the upper pressure sensor 1631 and the lower pressure sensor 1632. At this time, the upper pressure sensor 1631 and the lower pressure sensor 1632 both output a no-pressure signal to the controller 110. At this time, the controller 110 can clearly see that the power cable 121 is in the initial state, and the sliding position of the power cable 121 is the entrance of the cable guide 161. At this time, the power cable 121 is not connected to the gun head 141 of the charging gun 140. The traction motor 151 drives the traction cable 153 to drive the power cable 121 to continue to slide in the cable guide 161 toward the charging gun 140, that is, it is in the middle sliding state. At this time, the shell of the power cable 121 squeezes the upper pressure sensor 1631, but does not squeeze 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 know that the sliding position of the power cable 121 is sliding into the cable guide 161, and the power cable 121 is not connected to the gun head 141 of the charging gun 140. Afterwards, the traction motor 151 drives the traction cable 153 to drive the power cable 121 to continue sliding in the cable guide 161 toward the charging gun 140, until the plug 122 in the power cable 121 is inserted into the socket 1621 in the connector 162, that is, it is in the inserted position state. At this time, the outer shell of the power cable 121 squeezes 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 pressure signal and the lower pressure signal, the controller 110 can determine that the sliding position of the power cable 121 is 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 gun head 141 of the charging gun 140, and the traction motor 151 is controlled to stop rotating. After the target number of power cables 121 are inserted in place, the controller 110 can control the target number of power modules 120 to charge the vehicles to be charged.

[0054] After charging is completed, the controller 110 can control the traction motor 151 to rotate in the opposite direction, drive the traction cable 153 to drive the power cable 121 to slide in the cable guide 161 toward the traction motor 151, that is, slide from the inserted state corresponding to (c) to the intermediate sliding state 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. Afterwards, the controller 110 continues to control the traction motor 151 to rotate in the opposite direction, driving the traction cable 153 to drive the power cable 121 to slide in the cable guide 161 toward 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 the pressure-free signal sent by the upper pressure sensor 1631 and the lower pressure sensor 1632, respectively, and it is clear that the power cable 121 is disconnected from the gun head 141 of the charging gun 140, and the power cable 121 returns to the 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 gun head 141 of the charging gun 140 have returned to the 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 charging.

[0055] It should be noted that the charging pile also includes a switch module, which connects the controller 110 and each power module 120, and the switch module can control the on / off state between each power module 120 and the corresponding power cable 121. That is, when charging is required, the controller 110 can control the switch module to conduct the passage between the power cable 121 in the target charging gun 140 that is in the inserted state and the corresponding power module 120, and charge the vehicle to be charged through the power module 120. After charging is completed, the controller 110 can control the switch module to disconnect the passage between the power cable 121 and the corresponding power module 120, so that the power module 120 stops charging the vehicle to be charged.

[0056] The charging pile provided by the embodiment of the present invention determines the target number of cables required by the target charging gun according to the maximum charging power negotiated between the charging pile and the vehicle to be charged through a controller. After the target charging gun and the vehicle to be charged are in a plugged-in state, the connection state of the target number of cables and the gun head of the target charging gun is controlled by controlling the gun line traction device to control the charging state of the vehicle to be charged. In the embodiment of the present invention, the power cable is separated from each charging gun. When the target charging gun is plugged in to the vehicle to be charged or the target charging gun is unplugged from the vehicle to be charged, only the target charging gun with a heavier weight needs to be operated. After the target charging gun is plugged in to the vehicle to be charged or before the target charging gun is unplugged from the vehicle to be charged, the connection state of the target number of cables and the gun head of the target charging gun is controlled by the gun line traction device to control the charging state of the vehicle to be charged. By controlling the extension and retraction of the power cable, the weight of the gun line when the charging gun is plugged in and out is effectively reduced, thereby improving the user's charging experience.

[0057] The embodiment of the present invention further provides a charging method, which is applied to the charging pile as described in any one of the above items. Figure 6 is a flow chart of a charging method provided by an embodiment of the present invention, such as Figure 6 As shown, the method includes the following steps 610 and 620.

[0058] Step 610: Determine the target number of cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged.

[0059] Specifically, after the charging pile communicates with the BMS (Battery Management System) of the vehicle to be charged through the charging communication cable in the gun head of the target charging gun, the maximum charging power supported by the vehicle to be charged is negotiated. After that, the target number of power modules required for the vehicle to be charged can be calculated based on the maximum charging power. The power modules correspond to the power cables one by one. Therefore, the target number of power modules is the target number of cables required for the target charging gun.

[0060] Furthermore, the determining of the target number of 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: Obtaining the rated power corresponding to each power module in the charging pile; Based on the maximum charging power and the rated power, a target number of cables required for the target charging gun is determined.

[0061] 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 the quotient is rounded up to obtain the target number of cables required for the target charging gun. For example, the maximum charging power supported by the vehicle to be charged is 100kw, and the rated power corresponding to each power module in the charging pile can be 30kw. At this time, the quotient of the maximum charging power and the rated power is 10 / 3. The quotient is rounded up to obtain the target number of cables required for the target charging gun, which is 4, that is, the vehicle to be charged requires 4 power modules for charging, and 4 power cables need to be inserted into the target charging gun.

[0062] Step 620: When the target charging gun and the vehicle to be charged are in a plugged-in state, the gun line pulling device is controlled to control the connection state between the target number of power cables and the gun head of the target charging gun to control the charging state of the vehicle to be charged.

[0063] Specifically, before charging, the user can directly operate the gun head of the lighter target charging gun to plug it into the charging port of the vehicle to be charged. Afterwards, the controller can control the gun line traction device to pull the target number of power cables to extend until they are connected to the gun head of the target charging gun, and then control the target number of power modules to charge the vehicle to be charged. After charging is completed, the controller first controls the gun line traction device to pull the target number of power cables to shorten until they are disconnected from the gun head of the target charging gun and restored to the initial state, then the target charging gun can be unlocked and the user is prompted to unplug the target charging gun from the charging port of the vehicle to be charged.

[0064] The charging method provided in the embodiment of the present invention determines the target number of cables required by the target charging gun according to 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 in a plugged-in state, the connection state of the target number of cables and the gun head of the target charging gun is controlled by controlling the gun line traction device to control the charging state of the vehicle to be charged. In the embodiment of the present invention, the power cable is separated from each charging gun. When the target charging gun is plugged in to the vehicle to be charged or the target charging gun is unplugged from the vehicle to be charged, only the target charging gun with a heavier weight needs to be operated. After the target charging gun is plugged in to the vehicle to be charged or before the target charging gun is unplugged from the vehicle to be charged, the connection state of the target number of cables and the gun head of the target charging gun is controlled by the gun line traction device to control the charging state of the vehicle to be charged. By controlling the extension and retraction of the power cable, the weight of the gun line when the charging gun is plugged in and out is effectively reduced, thereby improving the user's charging experience.

[0065] The charging device provided by the present invention is described below. The charging device described below and the charging method described above can be referred to each other.

[0066] The embodiment of the present invention further provides a charging device, Figure 7 is a schematic diagram of a charging process of a charging device provided by an embodiment of the present invention. Figure 7 As described above, the charging device 700 includes: a determination module 710 and a control module 720 .

[0067] The determination module 710 is used to determine the target number of cables required for the target charging gun based on the maximum charging power negotiated between the charging pile and the vehicle to be charged.

[0068] The control module 720 is used to control the gun line pulling device to control the connection status of the target number of power cables and the gun 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 state of the vehicle to be charged.

[0069] The charging device provided in the embodiment of the present invention determines the target number of cables required by the target charging gun according to the maximum charging power negotiated between the charging pile and the vehicle to be charged through a controller. After the target charging gun and the vehicle to be charged are in a plugged-in state, the connection state of the target number of cables and the gun head of the target charging gun is controlled by controlling the gun line traction device to control the charging state of the vehicle to be charged. In the embodiment of the present invention, the power cable is separated from each charging gun. When the target charging gun is plugged in to the vehicle to be charged or the target charging gun is unplugged from the vehicle to be charged, only the target charging gun with a heavier weight needs to be operated. After the target charging gun is plugged in to the vehicle to be charged or before the target charging gun is unplugged from the vehicle to be charged, the connection state of the target number of cables and the gun head of the target charging gun is controlled by the gun line traction device to control the charging state of the vehicle to be charged. By controlling the extension and retraction of the power cable, the weight of the gun line when the charging gun is plugged in and out is effectively reduced, thereby improving the user's charging experience.

[0070] Optionally, the determining module 710 is specifically configured to: Obtaining the rated power corresponding to each power module in the charging pile; Based on the maximum charging power and the rated power, a target number of cables required for the target charging gun is determined.

[0071] Figure 8 is a schematic diagram of the structure of a controller provided by an embodiment of the present invention, such as 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 through the communication bus 840. The processor 810 may call the logic instructions in the memory 830 to execute the charging method, which includes: Determine the target number of 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 plugged-in state, the gun line pulling device controls the connection state of the target number of power cables and the gun head of the target charging gun to control the charging state of the vehicle to be charged.

[0072] In addition, the logic instructions in the above-mentioned memory 830 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0073] On the other hand, the present invention further provides a computer program product, the computer program product includes a computer program, the computer program can be stored in a computer-readable storage medium, when the computer program is executed by a processor, the computer can execute the charging method provided by the above methods, the method includes: Determine the target number of 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 plugged-in state, the gun line pulling device controls the connection state of the target number of power cables and the gun head of the target charging gun to control the charging state of the vehicle to be charged.

[0074] In another aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the charging method provided by the above methods is implemented, and the method includes: Determine the target number of 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 plugged-in state, the gun line pulling device controls the connection state of the target number of power cables and the gun head of the target charging gun to control the charging state of the vehicle to be charged.

[0075] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0076] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions 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: A controller, at least two power modules, a gun line pulling device and at least one charging gun, wherein: The gun line pulling device is communicatively connected with the controller, and the gun line pulling device is connected with the power cables corresponding to each power module and the gun head of each charging gun; The controller is used to determine the target number of 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 plugged-in state, the gun line pulling device is controlled to control the connection state of the target number of power cables and the gun head of the target charging gun to control the charging state of the vehicle to be charged.

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 line pulling device is controlled to pull the target number of power cables to connect with the gun head of the target charging gun to charge the vehicle to be charged; After the charging of the vehicle to be charged is completed, the gun line pulling device is controlled to pull the target number of power cables to disconnect them 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 or 2, characterized in that: The gun line traction device includes a traction sub-device corresponding to each power cable, wherein: Each of the traction sub-devices comprises: a traction motor, a guide rail assembly and a traction cable, wherein: the power cable is connected to the traction motor and the guide rail assembly through the traction cable, the guide rail assembly is connected to the gun head of the charging gun, and the guide rail assembly and the traction motor are both communicatively connected to the controller; The controller is used to drive the traction motor to rotate, so as to drive the traction cable to drive the power cable to slide in the guide rail assembly, control the connection state of the power cable and the guide rail assembly, and control the connection state of the power cable and the gun head of the charging gun.

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

5. The charging pile according to claim 4, characterized in that: The sensor assembly comprises at least an upper pressure sensor and a lower pressure sensor both connected to the controller, wherein: The upper pressure sensor is arranged at the upper end of the inner wall of the cable guide rail, and the lower pressure sensor is arranged at the lower end of the inner wall of the cable guide rail; When the power cable slides in the cable guide, the upper pressure sensor is used to detect the upper pressure signal between the power cable and the upper end of the inner wall of the cable guide; the lower pressure sensor is used to detect the lower pressure signal between the power cable and the lower end of the cable guide; the controller is used to determine the sliding position of the power cable in the cable guide based on the upper pressure signal and the lower pressure signal, so as to determine the connection status of the power cable and the gun head of the charging gun.

6. The charging pile according to claim 4, characterized in that: The power cable is provided with a plug at one end close to the guide rail assembly, and the connector is provided with a socket; The controller is used to control the connection state between the plug and the socket, so as to control the connection state between the power cable and the gun head of the charging gun.

7. A charging method, characterized in that: Applied to the charging pile according to any one of claims 1 to 6, the method comprises: Determine the target number of 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 plugged-in state, the gun line pulling device controls the connection state of the target number of power cables and the gun head of the target charging gun to control the charging state of the vehicle to be charged.

8. The charging method according to claim 7, characterized in that: The determining the target number of 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: Obtaining the rated power corresponding to each power module in the charging pile; Based on the maximum charging power and the rated power, a target number of cables required for the target charging gun is determined.

9. A charging device, characterized in that: include: A determination module, used to determine the target number of 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 gun line pulling device to control the connection status of the target number of power cables and the gun head of the target charging gun when the target charging gun and the vehicle to be charged are in a plug-in state, so as to control the charging state of the vehicle to be charged.

10. 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, the charging method according to claim 7 or 8 is implemented.

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