A charging device matched with a charging gun

Abstract

The application relates to the technical field of vehicle charging, and discloses a branch charging equipment matched with a charging gun, which comprises a main control module, a charging wire, a power supply module for supplying power to the main control module, a first charging head and a second charging head for being connected with a charging vehicle to realize charging of the charging vehicle, a power supply switch module, a signal switch module, and the main control module controls the working state of the power supply switch module and the signal switch module, so that the first charging head or the second charging head is connected with the charging wire; the main control module controls the working state of the signal switch module, so that an external signal line is connected with the first charging head or the second charging head; when the main control module controls the power supply switch module and the signal switch module to be in a first preset state, the first charging head charges the charging vehicle; when the main control module controls the power supply switch module and the signal switch module to be in a second preset state, the second charging head charges the charging vehicle. Therefore, a new power supply equipment is provided, the charging gun can be expanded to have multiple charging heads, and the charging equipment can adapt to higher charging demands in some scenes.

Description

Technical Field

[0001] This application relates to the field of vehicle charging technology, specifically to a split-line charging device that is compatible with a charging gun. Background Technology

[0002] With the continuous advancement of technology, the global demand for sustainable energy solutions is constantly increasing. New energy vehicles, as a key technology, are gradually replacing traditional fuel vehicles and gaining widespread market acceptance. However, the widespread promotion and application of new energy vehicles is constrained by existing power infrastructure. This constraint is mainly reflected in the inadequacy of power supply facilities and the inefficiency of power resource allocation.

[0003] Currently, in order to achieve efficient charging of power supply facilities, multiple charging guns are usually set up on the same charging pile. However, this setting method still cannot meet the charging needs of multiple vehicles in some application scenarios. Summary of the Invention

[0004] In view of the above problems, this application provides a split-line charging device that matches the charging gun, which can expand the charging gun to multiple charging heads, thereby adapting to the higher charging needs in certain scenarios.

[0005] The charging device, matched with the charging gun, includes: a main control module; a charging cable, which connects to the external charging cable of the charging gun when the charging device is connected; a power supply module, which connects to the external charging cable of the charging gun to supply power to the main control module; a first charging head and a second charging head, used to connect to the charging vehicle to charge it; and a power supply switch module, connected to the charging cable, the main control module, the first charging head, and the second charging head. The main control module controls the working state of the power supply switch module to enable the first charging head or the second charging head to charge. The charging head is connected to the charging cable; the signal switch module is connected to the first charging head, the second charging head, and the main control module. When the split-line charging device is connected to the charging gun, the signal switch module is connected to the external signal line of the charging gun. The main control module controls the working state of the signal switch module to connect the external signal line to the first or second charging head. Specifically, when the main control module controls the power supply switch module and the signal switch module to be in a first preset state, the first charging head charges the vehicle; when the main control module controls the power supply switch module and the signal switch module to be in a second preset state, the second charging head charges the vehicle.

[0006] In some specific embodiments, the power supply switch module includes a first switch module and a second switch module. The first switch module is connected to the charging cable and the main control module, respectively. The second switch module is connected to the charging cable, the first charging head, the second charging head, and the main control module, respectively. The main control module controls the on / off state of the charging cable by controlling the working state of the first switch module, and controls the on / off state of the charging cable with the first charging head and the second charging head by controlling the working state of the second switch module.

[0007] In some specific embodiments, the charging cable includes a first charging cable and a second charging cable, and the first switch module includes a first switch and a first relay body. The first switch is disposed on the first charging cable, and the first relay body is connected to the second charging cable and the first output port of the main control module respectively. When the first output port outputs a first voltage, the first switch is turned off to disconnect the charging cable; when the first output port outputs a second voltage, the first relay body controls the first switch to connect to make the charging cable conduct.

[0008] In some specific embodiments, the main control module is provided with a first input port, which is connected to the power supply module; when the main control module controls the first input port to disconnect from the first output port, the first output port outputs a first voltage; when the main control module controls the first input port to connect with the first output port, the power supply module outputs a second voltage to the first output port.

[0009] In some specific embodiments, the power supply module includes an ACDC module. When the split-line charging device is connected to the charging gun, the ACDC module is connected to the external charging cable of the charging gun. The ACDC module is also connected to the main control module through the positive wire and the ground wire, and the first input port is connected to the positive wire.

[0010] In some specific embodiments, the charging cable includes a first charging cable and a second charging cable, and the second switch module includes a second switch and a second relay body. The second switch is connected to the first charging cable, the first charging head, and the second charging head, respectively. The second relay body is connected to the second output port and the ground port of the main control module. Specifically, when the second output port outputs a third voltage, the second switch is open; when the second output port outputs a fourth voltage, the second relay body controls the second switch to be in a first connected state, connecting the first charging cable and the first charging head; when the second output port outputs a fifth voltage, the second relay body controls the second switch to be in a second connected state, connecting the first charging cable and the second charging head.

[0011] In some specific embodiments, the signal switch module includes a third switch and a third relay body. The third switch is connected to the first charging head and the second charging head. When the split-line charging device is connected to the charging gun, the third switch is connected to the external signal line of the charging gun. The third relay body is connected to the third output port and the ground port of the main control module respectively. Specifically, when the third output port outputs a sixth voltage, the third switch is disconnected; when the third output port outputs a seventh voltage, the third relay body controls the third switch to be in a third connected state so that the external signal line is connected to the first charging head; when the third output port outputs an eighth voltage, the third relay body controls the third switch to be in a fourth connected state so that the external signal line is connected to the second charging head.

[0012] In some specific embodiments, the main control module further includes a fourth output port and a fifth output port. The fourth output port is connected to the first charging head, and the fifth output port is connected to the second charging head. The fourth and fifth output ports are respectively used to output a ninth voltage. When the fourth output port outputs the ninth voltage and receives a handshake signal, the main control module controls the third output port to output a seventh voltage and controls the fourth output port to stop outputting the ninth voltage. When the fifth output port outputs the ninth voltage and receives a handshake signal, the main control module controls the third output port to output an eighth voltage and controls the fifth output port to stop outputting the ninth voltage.

[0013] In some specific embodiments, the split-line charging device also includes a signal connection line. One end of the signal connection line is connected to the signal input port of the main control module. When the split-line charging device is connected to the charging gun, the other end of the signal connection line is connected to the external signal line of the charging gun. The third switch is connected to the signal connection line. When the split-line charging device is connected to the charging gun and the third switch is on, the charging signal of the charging gun is input to the first charging head or the second charging head.

[0014] In some specific embodiments, the main control module further includes a first communication terminal and a second communication terminal, which are used to connect with the first communication terminal and the second communication terminal of the main control module of the extended split-line charging device that matches the charging gun to realize communication between the two.

[0015] In some specific embodiments, the main control module is provided with a CC signal terminal, which is connected to the resistor module of the charging gun. The CC signal terminal detects the connection status between the split-line charging device and the charging gun by detecting the resistance of the resistor module.

[0016] In some specific embodiments, the split-line charging device further includes a ground wire, a first resistor module, and a second resistor module. The first resistor module is connected to the ground wire and the first charging head, and the second resistor module is connected to the second charging head and the ground wire.

[0017] The beneficial technical effects of this application are at least as follows: Based on the split-line charging device matched with the charging gun provided in this application, it includes: a main control module; a charging cable, which is connected to the external charging cable of the charging gun when the split-line charging device is connected to the charging gun; a power supply module, which is connected to the external charging cable of the charging gun to supply power to the main control module when the split-line charging device is connected to the charging gun; a first charging head and a second charging head, used to connect to a charging vehicle to charge the vehicle; and a power supply switch module, connected to the charging cable, the main control module, the first charging head, and the second charging head, wherein the main control module controls the working state of the power supply switch module to enable… The system connects either a first or second charging head to a charging cable. A signal switch module connects to the first and second charging heads, as well as the main control module. When the split-line charging device is connected to the charging gun, the signal switch module connects to the external signal line of the charging gun. The main control module controls the operating state of the signal switch module to connect the external signal line to either the first or second charging head. Specifically, when the main control module controls the power supply switch module and the signal switch module to a first preset state, the first charging head charges the vehicle; when the main control module controls the power supply switch module and the signal switch module to a second preset state, the second charging head charges the vehicle. Therefore, by providing a novel power supply device, the charging gun can be expanded to have multiple charging heads, thus adapting to higher charging demands in certain scenarios.

[0018] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0019] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0020] Figure 1 This is a structural block diagram of an embodiment of the split-line charging device that is matched with the charging gun provided in this application;

[0021] Figure 2 This is a structural block diagram of another embodiment of the split-line charging device that matches the charging gun provided in this application;

[0022] Figure 3 This is a circuit diagram of yet another embodiment of the split-line charging device that is compatible with the charging gun provided in this application.

[0023] Explanation of reference numerals in the attached drawings: A split-line charging device 100 matched with the charging gun; a main control module 10; a first output port 11; a first input port 12; a second output port 13; a third output port 14; a fourth output port 15; a fifth output port 16; a signal input port 17; a first communication terminal 18; a second communication terminal 19; a grounding port a; a CC signal terminal b; a power detection terminal c; a charging cable 20; a first charging cable 21; a second charging cable 22; a first charging head 30; a second charging head 40; a power supply switch module 50; a first switch module 51; a first switch 511; a first relay body 512; a second switch module 52; a second switch 521; a second relay body 522; a signal switch module 60; a third switch 61; a third relay body 62; a power supply module 70; an ACDC module 71; a positive wire 72; a negative wire 73; a signal connection line 81; and a power detection module 90.

[0024] Charging gun 200, external charging cable 201, external signal cable 202, ground wire 203, charging vehicle 300. Detailed Implementation

[0025] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited to the embodiments set forth herein. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0026] If the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, if the word "and / or" appears throughout the text, it means including three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0027] This application provides a split-line charging device 100 that matches a charging gun, for matching with the charging gun of a charging pile, thereby expanding one charging gun into multiple charging heads to meet the charging needs in certain scenarios, especially the charging needs of multiple vehicles queuing for charging.

[0028] Figure 1 This is a structural block diagram of an embodiment of the split-line charging device 100 that is matched with the charging gun provided in this application.

[0029] Combination Figure 1 The split-line charging device 100, which is matched with the charging gun, includes a main control module 10, a charging cable 20, a first charging head 30, a second charging head 40, a power supply switch module 50, and a signal switch module 60. The main control module 10 controls the power supply switch module 50 and the signal switch module 60, thereby controlling the split-line charging device to charge the charging vehicle 300 through the first charging head 30 or the second charging head 40.

[0030] The main control module 10 is a device with control functions, such as an MCU (Microcontroller Unit). When the split-line charging device 100, which is matched with the charging gun, is connected to the charging gun 200, the charging cable 20 is connected to the external charging cable 201 of the charging gun 200. It should be understood that the charging gun 200 achieves current transmission through the external charging cable 201, thereby realizing charging. When the external charging cable 201 is connected to the charging cable 20, the external charging cable 201 can transmit current to the charging cable 20. The split-line charging device 100, which is matched with the charging gun, may be provided with a connection port, into which the charging gun 200 can be inserted to achieve electrical connection between the two.

[0031] When the charging adapter 100, which is matched with the charging gun, is connected to the charging gun 200, the power supply module 70 is connected to the external charging cable 201 of the charging gun 200 to supply power to the main control module 10. It should be understood that the charging adapter 100 is independent of the charging pile, and when connected to the charging gun 200, it needs to operate independently. At this time, the main control module 10 can operate independently through the power supply from the external charging cable 201. The current type of the external charging cable 201 may be different from that required by the main control module 10; a corresponding conversion device can be used to convert the current of the external charging cable 201 into the operating current required by the main control module 10.

[0032] The first charging head 30 and the second charging head 40 are used to connect to the charging vehicle 300 to charge it. It should be understood that when multiple vehicles are queuing for charging, the first charging head 30 and the second charging head 40 can be connected to different charging vehicles 300 respectively. After charging a vehicle 300 with one charging head, it can be immediately charged with another charging head. Therefore, by setting up the first charging head 30 and the second charging head 40, a single charging gun 200 can be expanded to include multiple charging heads, thereby meeting charging needs in certain specific scenarios. In scenarios where multiple vehicles are queuing for charging, different charging heads can be inserted into different charging vehicles 300 respectively, thereby achieving automatic sequential charging and improving charging efficiency.

[0033] The power supply switch module 50 is connected to the charging cable 20, the main control module 10, the first charging head 30, and the second charging head 40. The main control module 10 controls the operating state of the power supply switch module 50, enabling either the first charging head 30 or the second charging head 40 to connect to the charging cable 20. The power supply switch module 50, through its connection to the charging cable 20, can control the on / off state of the charging cable 20. The power supply switch module 50, through its connection to the first charging head 30 and the second charging head 40, can control the current flowing from the charging cable 20 into either the first charging head 30 or the second charging head 40, thus selecting which charging head 300 to charge the vehicle 300. The power supply switch module 50, through its connection to the main control module 10, enables the main control module 10 to control the power supply switch module 50, thereby achieving specific control over the charging process.

[0034] The signal switch module 60 is connected to the first charging head 30, the second charging head 40, and the main control module 10. When the split-line charging device 100, which matches the charging gun, is connected to the charging gun 200, the signal switch module 60 is connected to the external signal line 202 of the charging gun 200, thereby enabling the charging signal from the external signal line 202 to be transmitted to the signal switch module 60, and then to the first charging head 30 or the second charging head 40. At this time, the main control module 10 controls the working state of the signal switch module 60 to connect the external signal line 202 to the first charging head 30 or the second charging head 40, so that the charging signal transmitted by the external signal line 202 is transmitted to the first charging head 30 or the second charging head 40 through the signal switch module 60. It should be understood that if the first charging head 30 needs to charge the charging vehicle 300, it needs to connect the external signal line 202 to the first charging head 30, thereby enabling the charging signal to be transmitted to the first charging head 30 and then further transmitted to the charging vehicle 300. Similarly, the same applies to charging the second charging head 40.

[0035] Based on the above, the main control module 10 controls the charging of the first charging head 30 and the second charging head 40 by controlling the power supply switch module 50 and the signal switch module 60. Specifically, when the main control module 10 controls the power supply switch module 50 and the signal switch module 60 to a first preset state, the first charging head 30 charges the vehicle 300. When the main control module 10 controls the power supply switch module 50 and the signal switch module 60 to a second preset state, the second charging head 40 charges the vehicle 300. The first and second preset states can be set according to actual conditions and are not specifically limited in this embodiment. It should be understood that in this embodiment, the main control module 10 can only control one of the first charging head 30 and the second charging head 40 to charge the vehicle 300, and will not control both the first charging head 30 and the second charging head 40 to charge the vehicle 300 simultaneously.

[0036] Figure 2 This is a structural block diagram of another embodiment of the split-line charging device 100 that is matched with the charging gun provided in this application.

[0037] Combination Figure 2 In some specific embodiments, the power supply switch module 50 includes a first switch module 51 and a second switch module 52. The first switch module 51 is connected to the charging cable 20 and the main control module 10, respectively, and the second switch module 52 is connected to the charging cable 20, the first charging head 30, the second charging head 40, and the main control module 10, respectively. The first switch module 51 may be mounted on the charging cable 20. Figure 2 The connection between the second switch module 52 and the charging cable 20 is not shown in the embodiment. The second switch module 52 can be directly connected to the first switch module 51 or it can be set on the charging cable 20. This embodiment does not impose any specific limitations.

[0038] At this time, the main control module 10 controls the on / off state of the charging cable 20 by controlling the working state of the first switch module 51. Only when the charging cable 20 is in the connected state can the charging cable 20 transmit current to the first charging head 30 or the second charging head 40. The main control module 10 controls the on / off state of the charging cable 20 with the first charging head 30 and the second charging head 40 by controlling the working state of the second switch module 52. Only when the charging cable 20 is connected to the first charging head 30 can it transmit current to the first charging head 30, and only when the charging cable 20 is connected to the second charging head 40 can it transmit current to the second charging head 40.

[0039] Figure 3 This is a circuit diagram of yet another embodiment of the split-line charging device 100 that is matched with the charging gun provided in this application.

[0040] Combination Figure 3In some specific embodiments, the charging cable 20 includes a first charging cable 21 and a second charging cable 22. The first charging cable 21 can be a live wire, and the second charging cable 22 can be a neutral wire. The second charging cable 22 can be directly connected to the first charging head 30 and the second charging head 40.

[0041] The first switch module 51 includes a first switch 511 and a first relay body 512. The first switch 511 is disposed on the first charging cable 21, with both ends of the first switch 511 connected to the first charging cable 21. The first relay body is connected to the second charging cable 22 and the first output port 11 of the main control module 10. The first output port 11 can control the on / off state of the first switch 511 by outputting voltage. In some application scenarios, the first relay body 512 and the first switch 511 can together constitute a relay.

[0042] At this time, when the first output port 11 outputs the first voltage, the first switch 511 opens, disconnecting the charging cable 20. The first voltage can be 0V, but is not limited to this. When the first output port 11 outputs the second voltage, the first relay body 512 controls the first switch 511 to connect, turning on the charging cable 20. The second voltage can be 12V, but is not limited to this. Therefore, when the first output port 11 outputs the second voltage, the first switch 511 is connected, thereby connecting the first charging cable 21, which in turn connects the entire charging cable 20.

[0043] Continue to combine Figure 3 In some specific embodiments, the main control module 10 is provided with a first input port 12, which is connected to the power supply module 70. In this case, the power supply module 70 can input voltage to the first input port 12.

[0044] Specifically, when the main control module 10 disconnects the first input port 12 from the first output port 11, the first output port 11 outputs a first voltage. At this time, the power supply module 70 cannot output voltage to the first output port 11. When the main control module 10 connects the first input port 12 to the first output port 11, the power supply module 70 can input voltage to the first output port 11 through the first input port 12, that is, the power supply module 70 outputs a second voltage to the first output port 11.

[0045] Continue to combine Figure 3 In some specific embodiments, the power supply module 70 includes an ACDC module 71. When the split-line charging device is connected to the charging gun 200, the ACDC module 71 is connected to the external charging cable 201 of the charging gun 200. The ACDC module 71 is also connected to the main control module 10 through the positive line 72 and the grounding line 203. The first input port 12 is connected to the positive line 72.

[0046] The ACDC module 71 functions as a current converter, transforming alternating current (AC) into direct current (DC) and converting the high voltage of the external charging cable 201 into a low voltage usable by the main control module 10. By connecting the first input port 12 to the positive line 72, voltage can be directly input to the first input port 12 via the positive line 72. Therefore, the positive line 72 of the ACDC module 71 can output 12V, thereby enabling the first output port 11 to output 12V.

[0047] Continue to combine Figure 3 In some specific embodiments, the second switch module 52 includes a second switch 521 and a second relay body 522. The second switch 521 is connected to the first charging cable 21, the first charging head 30, and the second charging head 40, respectively. The second relay body 522 is connected to the second output port 13 and the ground port a of the main control module 10. The second switch 521 includes three connection terminals, which are respectively connected to the first charging cable 21, the first charging head 30, and the second charging head 40. The second output port 13 controls the second relay body 522.

[0048] Specifically, when the second output port 13 outputs the third voltage, the second switch 521 is open. When the second output port 13 outputs the fourth voltage, the second relay body 522 controls the second switch 521 to be in the first connected state, connecting the first charging cable 21 to the first charging head 30. For example, combined with... Figure 3 The first connected state can be the state where the switch is thrown. When the second output port 13 outputs the fifth voltage, the second relay body 522 controls the second switch 521 to be in the second connected state, so that the first charging cable 21 is connected to the second charging head 40. For example, combined with Figure 3 The second connected state can be the up-throw state of a switch. In some applications, the third voltage can be 0V, the fourth voltage can be +12V, and the fifth voltage can be -12V, but these are not limitations.

[0049] It should be understood that the connection point between the second switch 521 and the first high-voltage line is located after the first switch 511. Only after the first switch 511 is connected can the first high-voltage line input voltage to the second switch 521.

[0050] Continue to combine Figure 3 In some specific embodiments, the signal switch module 60 includes a third switch 61 and a third relay body 62. The third switch 61 is connected to the first charging head 30 and the second charging head 40. When the split-line charging device is connected to the charging gun 200, the third switch 61 is connected to the external signal line 202 of the charging gun 200. The third relay body 62 is connected to the third output port 14 and the grounding port a of the main control module 10, respectively.

[0051] Specifically, the third switch 61 may have three connection terminals, two of which are connected to the first charging head 30 and the second charging head 40, respectively. When the split-line charging device 100, which is matched with the charging gun, is connected to the charging gun 200, the third connection terminal of the third switch 61 is connected to the external signal line 202, thereby enabling the external signal line 202 to transmit the charging signal to the third switch 61. The split-line charging device 100, which is matched with the charging gun, may have an internal signal line, which can be connected to the third connection terminal of the third switch 61. When the split-line charging device 100, which is matched with the charging gun, is connected to the charging gun 200, the external signal line 202 is connected to the internal signal line, thereby enabling the charging signal to be transmitted to the third switch 61 through the internal signal line.

[0052] At this time, when the third output port 14 outputs the sixth voltage, the third switch 61 is open. When the third output port 14 outputs the seventh voltage, the third relay body 62 controls the third switch 61 to be in the third connected state, connecting the external signal line 202 to the first charging head 30. When the third output port 14 outputs the eighth voltage, the third relay body 62 controls the third switch 61 to be in the fourth connected state, connecting the external signal line 202 to the second charging head 40. In some specific application scenarios, the sixth voltage can be 0V, and when the third switch 61 is open, the third switch 61 is not connected to the first charging head 30 or the second charging head 40. The seventh voltage can be +12V, the eighth voltage can be -12V, the third connected state can be the switch down-throw state, and the fourth connected state can be the switch up-throw state.

[0053] Continue to combine Figure 3 In some specific embodiments, the main control module 10 further includes a fourth output port 15 and a fifth output port 16. The fourth output port 15 is connected to the first charging head 30, and the fifth output port 16 is connected to the second charging head 40. The fourth output port 15 and the fifth output port 16 are respectively used to output the ninth voltage.

[0054] Specifically, when the fourth output port 15 and the fifth output port 16 output the ninth voltage, if the first charging head 30 is connected to the charging vehicle 300, then the fourth output port 15 will receive a handshake signal; if the second charging head 40 is connected to the charging vehicle 300, then the fifth output port 16 will receive a handshake signal. The ninth voltage can be 12V, and the handshake signal can be a voltage change signal from 12V to 9V and then to 6V. Therefore, when the fourth output port 15 receives a handshake signal, it indicates that the first charging head 30 is connected to the charging vehicle 300; when the fifth output port 16 receives a handshake signal, it indicates that the second charging head 40 is connected to the charging vehicle 300.

[0055] When the fourth output port 15 outputs the ninth voltage and receives a handshake signal, the main control module 10 controls the third output port 14 to output the seventh voltage, that is, controls the third switch 61 to connect with the first charging head 30, so that the charging signal is input to the first charging head 30. Furthermore, it controls the fourth output port 15 to stop outputting the ninth voltage to avoid the ninth voltage affecting the charging signal. Similarly, when the fifth output port 16 outputs the ninth voltage and receives a handshake signal, the main control module 10 controls the third output port 14 to output the eighth voltage, that is, controls the third switch 61 to connect with the second charging head 40, so that the charging signal is input to the second charging head 40. Furthermore, it controls the fifth output port 16 to stop outputting the ninth voltage to avoid the ninth voltage affecting the charging signal.

[0056] Continue to combine Figure 3 In some specific embodiments, the split-line charging device 100 matched with the charging gun also includes a signal connection line 81. One end of the signal connection line 81 is connected to the signal input port 17 of the main control module 10. When the split-line charging device is connected to the charging gun 200, the other end of the signal connection line 81 is connected to the external signal line 202 of the charging gun 200.

[0057] It should be understood that when the split-line charging device is connected to the charging gun 200, since the other end of the signal connection line 81 is connected to the external signal line 202 of the charging gun 200, the charging gun 200 can detect that the external signal line 202 has been connected, "inducing" the charging gun 200 to smoothly enter a state where it can be charged at any time, so that the charging gun 200 can output charging current to the first charging head 30 or the second charging head 40.

[0058] When the charging device is connected to the charging gun 200 and the third switch 61 is activated, since the third switch 61 is connected to the signal connection line 81, the charging signal of the charging gun 200 is input to the first charging head 30 or the second charging head 40, thereby enabling the first charging head 30 and the second charging head 40 to charge smoothly. The charging signal is a PWM signal, containing charging-related information, which is essential for charging.

[0059] Continue to combine Figure 3 In some specific embodiments, the main control module 10 further includes a first communication terminal 18 and a second communication terminal 19. The first communication terminal 18 and the second communication terminal 19 are used to connect with the first communication terminal 18 and the second communication terminal 19 of the main control module 10 of the extended split-line charging device 100 that is matched with the charging gun to realize communication between the two.

[0060] It should be understood that Figure 3The first vertical dashed line represents the charging gun 200 to the left, and the second vertical dashed line represents the main control module 10 of the extended charging branch device 100 that matches the charging gun to the right. The area between the two vertical dashed lines represents the main control module 10 of the charging branch device 100 that matches the charging gun to the right. The extended charging branch device 100 that matches the charging gun to the right can be the same device as the charging branch device 100 that matches the charging gun to the right provided in this application. By setting up the extended charging branch device 100 that matches the charging gun to the right, the charging gun 200 can be extended to have more charging heads, thereby meeting the charging needs of more vehicles. The connection between the first communication terminal 18 and the second communication terminal 19 enables them to communicate, thus facilitating the integration of the entire device.

[0061] Continue to combine Figure 3 In some specific embodiments, the main control module 10 is provided with a CC signal terminal b, which is connected to the resistor module of the charging gun 200. The resistor module is connected to the ground wire 203. The CC signal terminal b detects the connection status between the split-line charging device and the charging gun 200 by detecting the resistance of the resistor module. When the split-line charging device and the charging gun 200 have different connection statuses, the CC signal terminal b can detect different resistance values. Correspondingly, the charging gun 200 can also be configured to detect the resistance of the resistor module to identify the connection status. The resistor module includes a first resistor R1 and a second resistor R2; the resistance value of the resistor module can be changed by different connection statuses between them.

[0062] Continue to combine Figure 3 At this time, the split-line charging device 100 matched with the charging gun also includes a ground wire 203. When the split-line charging device 100 matched with the charging gun 200 is connected, their ground wires 203 are also connected. The split-line charging device 100 matched with the charging gun also includes a first resistor module and a second resistor module. The first resistor module is connected to the ground wire 203 and the first charging head 30, and the second resistor module is connected to the second charging head 40 and the ground wire 203. The settings of the first resistor module and the second resistor module can refer to the settings of the resistor modules described above. At this time, the charging vehicle 300 can determine the connection status between the charging head and the vehicle by detecting the resistance value of the first resistor module or the second resistor module.

[0063] In addition, in order to detect the charging power, a power detection module 90 can be set on the charging cable 20. The power detection module 90 is connected to the power detection terminal c of the main control module 10, so that the main control module 10 can detect the charging power through the power detection terminal c and the power detection module 90.

[0064] In summary, the split-line charging device 100 provided in this application, which is matched with a charging gun, includes: a main control module 10; a charging cable 20, which is connected to an external charging cable 201 of the charging gun 200 when the split-line charging device is connected to the charging gun 200; a power supply module 70, which is connected to the external charging cable 201 of the charging gun 200 to supply power to the main control module 10 when the split-line charging device is connected to the charging gun 200; a first charging head 30 and a second charging head 40, which are used to connect to the charging vehicle 300 to charge the charging vehicle 300; and a power supply switch module 50, which is connected to the charging cable 20, the main control module 10, the first charging head 30, and the second charging head 40. The main control module 10 controls the working state of the power supply switch module 50 to enable the first charging head 30 to charge the vehicle 300. The first charging head 30 or the second charging head 40 is connected to the charging cable 20. The signal switch module 60 is connected to the first charging head 30, the second charging head 40, and the main control module 10. When the split-line charging device is connected to the charging gun 200, the signal switch module 60 is connected to the external signal line 202 of the charging gun 200. The main control module 10 controls the working state of the signal switch module 60 to connect the external signal line 202 to either the first charging head 30 or the second charging head 40. Specifically, when the main control module 10 controls the power supply switch module 50 and the signal switch module 60 to be in a first preset state, the first charging head 30 charges the vehicle 300; when the main control module 10 controls the power supply switch module 50 and the signal switch module 60 to be in a second preset state, the second charging head 40 charges the vehicle 300. Therefore, by providing a novel power supply device, the charging gun 200 can be expanded to have multiple charging heads, thus adapting to higher charging demands in certain scenarios.

[0065] The above description is merely a preferred exemplary embodiment of this application and is not intended to limit the implementation of this application. Those skilled in the art can easily make corresponding modifications or alterations based on the main concept and spirit of this application. Therefore, the scope of protection of this application should be determined by the scope of protection claimed in the claims.

Claims

1. A split-line charging device compatible with a charging gun, characterized in that, include: Main control module; The charging cable is connected to the external charging cable of the charging gun when the split-line charging device is connected to the charging gun. The power supply module is connected to the external charging cable of the charging gun when the branch charging device is connected to the charging gun to supply power to the main control module. The first and second charging heads are used to connect to the charging vehicle to enable charging of the vehicle. A power supply switch module is connected to the charging cable, the main control module, the first charging head, and the second charging head. The main control module controls the working state of the power supply switch module to connect the first charging head or the second charging head to the charging cable. The signal switch module is connected to the first charging head, the second charging head, and the main control module. When the split-line charging device is connected to the charging gun, the signal switch module is connected to the external signal line of the charging gun. The main control module controls the working state of the signal switch module to make the external signal line connected to the first charging head or the second charging head. Specifically, when the main control module controls the power supply switch module and the signal switch module to be in a first preset state, the first charging head charges the vehicle; when the main control module controls the power supply switch module and the signal switch module to be in a second preset state, the second charging head charges the vehicle.

2. The split-line charging device according to claim 1, characterized in that, The power supply switch module includes a first switch module and a second switch module. The first switch module is connected to the charging cable and the main control module respectively, and the second switch module is connected to the charging cable, the first charging head, the second charging head and the main control module respectively. The main control module controls the connection and disconnection of the charging cable by controlling the working state of the first switch module, and controls the connection and disconnection between the charging cable and the first charging head and the second charging head by controlling the working state of the second switch module.

3. The split-line charging device according to claim 2, characterized in that, The charging cable includes a first charging cable and a second charging cable. The first switch module includes a first switch and a first relay body. The first switch is disposed on the first charging cable, and the first relay body is connected to the second charging cable and the first output port of the main control module, respectively. When the first output port outputs a first voltage, the first switch is turned off to disconnect the charging cable; when the first output port outputs a second voltage, the first relay body controls the first switch to connect to make the charging cable conduct.

4. The split-line charging device according to claim 3, characterized in that, The main control module is provided with a first input port, which is connected to the power supply module. When the main control module controls the first input port to be disconnected from the first output port, the first output port outputs the first voltage. When the main control module controls the first input port to be connected to the first output port, the power supply module outputs the second voltage to the first output port.

5. The split-line charging device according to claim 4, characterized in that, The power supply module includes an ACDC module. When the split-line charging device is connected to the charging gun, the ACDC module is connected to the external charging cable of the charging gun. The ACDC module is also connected to the main control module through a positive wire and a ground wire. The first input port is connected to the positive wire.

6. The split-line charging device according to claim 2, characterized in that, The charging cable includes a first charging cable and a second charging cable. The second switch module includes a second switch and a second relay body. The second switch is connected to the first charging cable, the first charging head, and the second charging head respectively. The second relay body is connected to the second output port and the ground port of the main control module. Specifically, when the second output port outputs a third voltage, the second switch is disconnected; when the second output port outputs a fourth voltage, the second relay body controls the second switch to be in a first connected state, so that the first charging cable is connected to the first charging head; when the second output port outputs a fifth voltage, the second relay body controls the second switch to be in a second connected state, so that the first charging cable is connected to the second charging head.

7. The charging device according to claim 1, characterized in that, The signal switch module includes a third switch and a third relay body. The third switch is connected to the first charging head and the second charging head. When the split-line charging device is connected to the charging gun, the third switch is connected to the external signal line of the charging gun. The third relay body is connected to the third output port and the ground port of the main control module respectively. Specifically, when the third output port outputs a sixth voltage, the third switch is disconnected; when the third output port outputs a seventh voltage, the third relay body controls the third switch to be in a third connected state so that the external signal line is connected to the first charging head; when the third output port outputs an eighth voltage, the third relay body controls the third switch to be in a fourth connected state so that the external signal line is connected to the second charging head.

8. The split-line charging device according to claim 7, characterized in that, The main control module also includes a fourth output port and a fifth output port. The fourth output port is connected to the first charging head, and the fifth output port is connected to the second charging head. The fourth output port and the fifth output port are respectively used to output the ninth voltage. When the fourth output port outputs the ninth voltage and receives a handshake signal, the main control module controls the third output port to output the seventh voltage and controls the fourth output port to stop outputting the ninth voltage; when the fifth output port outputs the ninth voltage and receives a handshake signal, the main control module controls the third output port to output the eighth voltage and controls the fifth output port to stop outputting the ninth voltage.

9. The split-line charging device according to claim 7, characterized in that, The split-line charging device also includes a signal connection line. One end of the signal connection line is connected to the signal input port of the main control module. When the split-line charging device is connected to the charging gun, the other end of the signal connection line is connected to the external signal line of the charging gun. When the third switch is connected to the signal connection line, and the split-line charging device is connected to the charging gun and the third switch is on, the charging signal of the charging gun is input to the first charging head or the second charging head.

10. The split-line charging device according to claim 1, characterized in that, The main control module further includes a first communication terminal and a second communication terminal, which are used to connect with the first and second communication terminals of the main control module of the extended split-line charging device that matches the charging gun to realize communication between the two.

11. The split-line charging device according to claim 1, characterized in that, The main control module is equipped with a CC signal terminal, which is connected to the resistor module of the charging gun. The CC signal terminal detects the connection status between the split-line charging device and the charging gun by detecting the resistance of the resistor module.

12. The split-line charging device according to claim 1, characterized in that, The split-line charging device also includes a ground wire, a first resistor module, and a second resistor module. The first resistor module is connected to the ground wire and the first charging head, and the second resistor module is connected to the second charging head and the ground wire.

Images