Branching charging equipment matched with charging gun

Abstract

The invention relates to the technical field of vehicle charging, and discloses a branching charging device matched with a charging gun. A charging line; the power supply module supplies power to the main control module; the first charging head and the second charging head are used for being connected with a charging vehicle to charge the charging vehicle; the main control module enables the first charging head or the second charging head to be connected with the charging line by controlling the working state of the power supply switch module; the main control module enables an external signal line to be connected with the first charging head or the second charging head by controlling the working state of the signal switch module; 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 a charging vehicle; and 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, by providing brand new power supply equipment, the charging gun can be expanded to obtain a plurality of charging heads, so that the charging gun can adapt to relatively high charging requirements in some scenes.

Description

Technical Field

[0001] The present application relates to the field of vehicle charging technology, and in particular to a split-line charging device that matches a charging gun. Background Art

[0002] With the continuous improvement of science and technology, the global demand for sustainable energy solutions is increasing. As a key technology, new energy vehicles are gradually replacing traditional fuel vehicles and gaining wide market recognition. However, the widespread promotion and application of new energy vehicles are restricted by the existing power infrastructure. This restriction is mainly reflected in the insufficiency of power supply facilities and the inefficiency of power resource allocation.

[0003] At present, in order to achieve efficient charging of power supply facilities, multiple charging guns are generally installed 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, the present application provides a split-line charging device that matches a charging gun, which can expand the charging gun to obtain multiple charging heads, thereby being able to adapt to higher charging requirements in certain scenarios.

[0005] Among them, the split-line charging device matched with the charging gun includes: a main control module; a charging line, when the split-line charging device is connected to the charging gun, the charging line is connected to the external charging line of the charging gun; a power supply module, when the split-line charging device is connected to the charging gun, the power supply module is connected to the external charging line of the charging gun to power the main control module; a first charging head and a second charging head are used to connect to the charging vehicle to charge the charging vehicle; a power supply switch module is connected to the charging line, the main control module, the first charging head and the second charging head, and the main control module controls the working state of the power supply switch module to make the first charging head or the second charging head The power head is connected to the charging line; the signal switch module is connected to the first charging head, the second charging head and the main control module. When the branch 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 charging head or the second charging head; wherein, 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.

[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 respectively connected to the charging cable and the main control module, and the second switch module is respectively connected to the charging cable, the first charging head, the second charging head and the main control module; wherein the main control module controls the on and off of the charging cable by controlling the working state of the first switch module, and the main control module controls the on and off of the charging cable and 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 line includes a first charging line and a second charging line, the first switch module includes a first switch and a first relay body, the first switch is arranged on the first charging line, and the first relay body is respectively connected to the second charging line and the first output port of the main control module; wherein, when the first output port outputs a first voltage, the first switch is disconnected to disconnect the charging line; when the first output port outputs a second voltage, the first relay body controls the first switch to be connected to connect the charging line.

[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 be disconnected from the first output port, the first output port outputs a 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 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 line of the charging gun. The ACDC module is also connected to the main control module through the positive line and the ground line, and the first input port is connected to the positive line.

[0010] In some specific embodiments, 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 respectively connected to the first charging cable, the first charging head and the second charging head, and the second relay body is connected to the second output port and the ground port of the main control module; wherein, 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.

[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 branch line charging device is connected to the charging gun, the third switch is connected to the external signal line of the charging gun, and the third relay body is respectively connected to the third output port and the ground port of the main control module; wherein, when the third output port outputs the sixth voltage, the third switch is disconnected; when the third output port outputs the 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 the 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 also includes a fourth output port and a fifth output port, the fourth output port is connected to the first charging head, the fifth output port is connected to the second charging head, and the fourth output port and the fifth output port are respectively used to output a ninth voltage; wherein, after 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; after 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.

[0013] In some specific embodiments, the branch-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, and when the branch-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; wherein, the third switch is connected to the signal connection line, and when the branch-line charging device is connected to the charging gun and the third switch is connected, 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 also includes a first communication terminal and a second communication terminal, and the first communication terminal and the second communication terminal are used to connect to the first communication terminal and the second communication terminal of the main control module of the extended branch line charging device matching 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 resistance module of the charging gun. The CC signal terminal detects the connection status between the branch-line charging device and the charging gun by detecting the resistance of the resistance module.

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

[0017] The present application has at least the following beneficial technical effects: the split-line charging device matched with the charging gun provided by the present application comprises: a main control module; a charging line, which is connected to the external charging line 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 line 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, which are used to connect to the charging vehicle to charge the charging vehicle; a power supply switch module, which is connected to the charging line, the main control module, the first charging head and the second charging head, and the main control module controls the working state of the power supply switch module to enable the charging of the charging vehicle. The first charging head or the second charging head is connected to the charging line; the signal switch module is connected to the first charging head, the second charging head and the main control module. When the branch 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 so that the external signal line is connected to the first charging head or the second charging head; wherein, when the main control module controls the power switch module and the signal switch module to be in the first preset state, the first charging head charges the charging vehicle; when the main control module controls the power switch module and the signal switch module to be in the second preset state, the second charging head charges the charging vehicle. Therefore, by providing a new power supply device, the charging gun can be expanded to obtain multiple charging heads, which can adapt to higher charging requirements in certain scenarios.

[0018] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present application. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0020] Figure 1 It is a structural block diagram of an embodiment of a split-line charging device matched with a charging gun provided by the present application;

[0021] Figure 2 It is a structural block diagram of another embodiment of a split-line charging device matched with a charging gun provided by the present application;

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

[0023] Description of the accompanying drawings: a split-line charging device 100 matched with a 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 line 20, a first charging line 21, a second charging line 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 line 72, a negative line 73, a signal connection line 81, and a power detection module 90;

[0024] Charging gun 200 , external charging line 201 , external signal line 202 , ground line 203 , and charging vehicle 300 . DETAILED DESCRIPTION

[0025] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0026] If there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0027] The present application provides a split-line charging device 100 that matches a charging gun, which is used to match the charging gun of a charging pile, and then expand one charging gun to obtain multiple charging heads to meet the charging needs in certain scenarios, especially to meet the charging needs of multiple vehicles queuing for charging.

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

[0029] Combination Figure 1 The split-line charging device 100 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 switch module 50 and a signal switch module 60. The main control module 10 controls the power switch module 50 and the signal switch module 60, and then controls the split-line charging device to charge the charging vehicle 300 through the first charging head 30 or the second charging head 40.

[0030] Among them, the main control module 10 is a device with a control function, such as an MCU (Microcontroller Unit). When the split-line charging device 100 matching the charging gun is connected to the charging gun 200, the charging line 20 is connected to the external charging line 201 of the charging gun 200. It should be understood that the charging gun 200 realizes current transmission through the external charging line 201, thereby realizing charging. When the external charging line 201 is connected to the charging line 20, the external charging line 201 can transmit current to the charging line 20. Among them, the split-line charging device 100 matching the charging gun can be provided with a connection port, and the charging gun 200 can be inserted into the connection port to realize the electrical connection between the two.

[0031] When the split-line charging device 100 matched with the charging gun is connected to the charging gun 200, the power supply module 70 is connected to the external charging line 201 of the charging gun 200 to power the main control module 10. It should be understood that the split-line charging device 100 matched with the charging gun is independent of the charging pile. When the split-line charging device 100 matched with the charging gun is connected to the charging gun 200, the split-line charging device 100 matched with the charging gun needs to work independently. At this time, the main control module 10 can work independently through the power supply of the external charging line 201. Among them, the current type of the external charging line 201 can be different from the type required by the main control module 10, and the current of the external charging line 201 can be converted into the working current required by the main control module 10 through the corresponding conversion device.

[0032] As for the first charging head 30 and the second charging head 40, the first charging head 30 and the second charging head 40 are used to connect with the charging vehicle 300 to realize charging of the charging vehicle 300. It should be understood that when there are multiple vehicles 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 the charging vehicle 300 with one charging head, the charging vehicle 300 can be immediately charged with another charging head. Therefore, through the setting of the first charging head 30 and the second charging head 40, one charging gun 200 can be expanded to obtain multiple charging heads, thereby realizing charging requirements in certain specific scenarios. In the scenario where multiple vehicles are queuing for charging, different charging heads can be inserted into different charging vehicles 300 respectively, thereby realizing automatic charging in sequence and improving charging efficiency.

[0033] As for the power supply switch module 50, the power supply switch module 50 is connected to the charging line 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 so that the first charging head 30 or the second charging head 40 is connected to the charging line 20. The power supply switch module 50 is connected to the charging line 20 so that the power supply switch module 50 can realize the on-off control of the charging line 20. The power supply switch module 50 is connected to the first charging head 30 and the second charging head 40 so that the current of the charging line 20 is controlled to be introduced into the first charging head 30 or the second charging head 40, and then the first charging head 30 or the second charging head 40 is selected to charge the charging vehicle 300. The power supply switch module 50 is connected to the main control module 10 so that the main control module 10 can realize the control of the power supply switch module 50, and then realize the specific control of charging.

[0034] As for the signal switch module 60, 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 matching 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, so that the charging signal of the external signal line 202 can be transmitted to the signal switch module 60, and then can be transmitted 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 is necessary to connect the external signal line 202 to the first charging head 30, so that the charging signal is transmitted to the first charging head 30 and further transmitted to the charging vehicle 300. The same applies to charging of the second charging head 40 .

[0035] In combination with the above content, the main control module 10 realizes charging control for the first charging head 30 and the second charging head 40 by controlling the power switch module 50 and the signal switch module 60. Among them, when the main control module 10 controls the power switch module 50 and the signal switch module 60 to be in the first preset state, the first charging head 30 charges the charging vehicle 300. When the main control module 10 controls the power switch module 50 and the signal switch module 60 to be in the second preset state, the second charging head 40 charges the charging vehicle 300. The first preset state and the second preset state 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 charging vehicle 300, and will not control the first charging head 30 and the second charging head 40 to charge the charging vehicle 300 at the same time.

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

[0037] Combination Figure 2 In some specific embodiments, the power 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 can be set on the charging cable 20. Figure 2 The connection relationship between the second switch module 52 and the charging line 20 is not shown. The second switch module 52 can be directly connected to the first switch module 51 or can be set on the charging line 20. This embodiment is not specifically limited.

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

[0039] Figure 3 It is a circuit diagram of another embodiment of a split-line charging device 100 matched with a charging gun provided in the present 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 may be a live cable, and the second charging cable 22 may be a neutral cable. The second charging cable 22 may be directly connected to the first charging head 30 and the second charging head 40.

[0041] Among them, the first switch module 51 includes a first switch 511 and a first relay body 512. The first switch 511 is set on the first charging line 21. At this time, both ends of the first switch 511 are respectively connected to the first charging line 21. The first relay body is respectively connected to the second charging line 22 and the first output port 11 of the main control module 10. The first output port 11 can realize the on-off control of the first switch 511 by outputting a 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 is disconnected to disconnect the charging line 20. The first voltage can be 0V, but it 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 to turn on the charging line 20, and the second voltage can be 12V, but it is not limited to this. Therefore, when the first output port 11 outputs the second voltage, the first switch 511 is connected, and then the first charging line 21 is connected, that is, the entire charging line 20 is connected.

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

[0044] Specifically, when the main control module 10 controls the first input port 12 to be disconnected from the first output port 11, the first output port 11 outputs the 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 controls the first input port 12 to be connected 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 the 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 line 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 ground line 203, and the first input port 12 is connected to the positive line 72.

[0046] Among them, the ACDC module 71 has the function of current conversion, which can convert AC power into DC power, and convert the high voltage of the external charging line 201 into a low voltage available to the main control module 10. By connecting the first input port 12 with the positive line 72, the positive line 72 can directly input voltage to the first input port 12. In combination with the above content, the positive line 72 of the ACDC module 71 can output a voltage of 12V, thereby enabling the first output port 11 to output a voltage of 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 line 21, the first charging head 30 and the second charging head 40 respectively, and 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 line 21, the first charging head 30 and the second charging head 40, and the second output port 13 realizes the control of the second relay body 522.

[0048] When the second output port 13 outputs the third voltage, the second switch 521 is disconnected. 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 so that the first charging line 21 is connected to the first charging head 30. Figure 3 , the first connection state can be the state of the switch being thrown down. 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 connection state so that the first charging line 21 is connected to the second charging head 40. For example, in combination Figure 3 The second connection state may be a state where the switch is thrown upward. In some application scenarios, the third voltage may be 0V, the fourth voltage may be +12V, and the fifth voltage may be -12V, but this is not intended to be limiting.

[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 , and only after the first switch 511 is connected, the first high-voltage line can 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 branch 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, and the third relay body 62 is respectively connected to the third output port 14 of the main control module 10 and the ground port a.

[0051] Specifically, the third switch 61 may be provided with three connection ends, two of which are respectively connected to the first charging head 30 and the second charging head 40. When the split-line charging device 100 matching the charging gun is connected to the charging gun 200, the third connection end of the third switch 61 is connected to the external signal line 202, so that the external signal line 202 can transmit the charging signal to the third switch 61. Among them, an internal signal line may be provided inside the split-line charging device 100 matching the charging gun, and the internal signal line may be connected to the third connection end of the third switch 61. When the split-line charging device 100 matching the charging gun is connected to the charging gun 200, the external signal line 202 is connected to the internal signal line, so that the charging signal can 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 disconnected. 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 connection state so that the external signal line 202 is connected 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 connection state so that the external signal line 202 is connected to the second charging head 40. In some specific application scenarios, the sixth voltage can be 0v, and when the third switch 61 is disconnected, the third switch 61 is not connected to the first charging head 30 and the second charging head 40. The seventh voltage can be +12v, the eighth voltage can be -12v, the third connection state can be the state of the switch down, and the fourth connection state can be the state of the switch up.

[0053] Continue to combine Figure 3 In some specific embodiments, the main control module 10 also 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, the fifth output port 16 is connected to the second charging head 40, and the fourth output port 15 and the fifth output port 16 are respectively used to output a 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, the fourth output port 15 will receive a handshake signal, and if the second charging head 40 is connected to the charging vehicle 300, the fifth output port 16 will receive a handshake signal. Among them, the ninth voltage can be 12v, and at this time the handshake signal can be a voltage change signal in which the voltage changes from 12v to 9v and then to 6v. Therefore, when the fourth output port 15 receives a handshake signal, it means that the first charging head 30 is connected to the charging vehicle 300, and when the fifth output port 16 receives a handshake signal, it means that the second charging head 40 is connected to the charging vehicle 300.

[0055] Among them, after the fourth output port 15 outputs the ninth voltage and receives the 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 be connected to the first charging head 30, so that the charging signal is input to the first charging head 30. In addition, the fourth output port 15 will be controlled to stop outputting the ninth voltage to avoid the influence of the ninth voltage on the charging signal. Similarly, after the fifth output port 16 outputs the ninth voltage and receives the 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 be connected to the second charging head 40, so that the charging signal is input to the second charging head 40. In addition, the fifth output port 16 will be controlled to stop outputting the ninth voltage to avoid the influence of the ninth voltage on 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, and 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, and "induce" 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 like the first charging head 30 or the second charging head 40.

[0058] When the split-line charging device is connected to the charging gun 200 and the third switch 61 is connected, the third switch 61 is connected to the signal connection line 81, so the charging signal of the charging gun 200 is input to the first charging head 30 or the second charging head 40, so that the first charging head 30 and the second charging head 40 can be charged smoothly. Among them, the charging signal is a PWM signal, which contains charging-related information and is necessary information for charging.

[0059] Continue to combine Figure 3 In some specific embodiments, the main control module 10 also includes a first communication terminal 18 and a second communication terminal 19, and 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 branch line charging device 100 that matches the charging gun to realize communication between the two.

[0060] It should be understood that Figure 3The left side of the first vertical dotted line represents the charging gun 200, the right side of the second vertical dotted line represents the main control module 10 of the extended branch-line charging device 100 that matches the charging gun, and the area between the two vertical dotted lines represents the main control module 10 of the branch-line charging device 100 that matches the charging gun. Among them, the extended branch-line charging device 100 that matches the charging gun and the branch-line charging device 100 that matches the charging gun provided in this application can be the same device. Through the setting of the extended branch-line charging device 100 that matches the charging gun, the charging gun 200 can expand more charging heads to meet the charging needs of more vehicles. The connection between the first communication terminal 18 and the second communication terminal 19 is achieved through the setting of the two, which enables the two to communicate, thereby 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, and the CC signal terminal b is connected to the resistance module of the charging gun 200, and the resistance module is connected to the ground wire 203. Among them, the CC signal terminal b detects the connection status between the branch charging device and the charging gun 200 by detecting the resistance of the resistance module. Among them, when there are different connection states between the branch charging device and the charging gun 200, the CC signal terminal b can detect different resistance values. Correspondingly, the charging gun 200 can also be set to detect the resistance of the resistance module to identify the connection state. Among them, the resistance module includes a first resistor R1 and a second resistor R2, and the resistance value of the resistance module can be changed by different connection states between the two.

[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 is connected to the charging gun 200, the ground wires 203 of the two 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. Among them, the settings of the first resistor module and the second resistor module can refer to the settings of the above-mentioned resistor modules. 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 line 20, and 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 matched with the charging gun provided in the present application includes: a main control module 10; a charging line 20, when the split-line charging device is connected to the charging gun 200, the charging line 20 is connected to the external charging line 201 of the charging gun 200; a power supply module 70, when the split-line charging device is connected to the charging gun 200, the power supply module 70 is connected to the external charging line 201 of the charging gun 200 to power the main control module 10; 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; a power supply switch module 50, which is connected to the charging line 20, the main control module 10, the first charging head 30 and the second charging head 40, and the main control module 10 controls the working state of the power supply switch module 50 so that the first charging head 3 0 or the second charging head 40 is connected to the charging line 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 so that the external signal line 202 is connected to the first charging head 30 or the second charging head 40; wherein, when the main control module 10 controls the power switch module 50 and the signal switch module 60 to be in the first preset state, the first charging head 30 charges the charging vehicle 300; when the main control module 10 controls the power switch module 50 and the signal switch module 60 to be in the second preset state, the second charging head 40 charges the charging vehicle 300. Therefore, by providing a new power supply device, the charging gun 200 can be expanded to obtain multiple charging heads, which can adapt to higher charging requirements in certain scenarios.

[0065] The above content is only a preferred exemplary embodiment of the present application and is not intended to limit the implementation scheme of the present application. A person skilled in the art can easily make corresponding changes or modifications based on the main concept and spirit of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection required by the claims.

Claims

1. A split-line charging device matching a charging gun, characterized in that: include: Main control module; A charging line, when the split-line charging device is connected to the charging gun, the charging line is connected to the external charging line of the charging gun; A power supply module, when the split-line charging device is connected to the charging gun, the power supply module is connected to the external charging line of the charging gun to supply power to the main control module; The first charging head and the second charging head are used to connect to the charging vehicle to charge the charging vehicle; a power 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 switch module so that the first charging head or the second charging head is connected to the charging cable; A 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 so that the external signal line is connected to the first charging head or the second charging head. When the main control module controls the power 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 switch module and the signal switch module to be in a second preset state, the second charging head charges the charging 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 respectively connected to the charging cable and the main control module, and the second switch module is respectively connected to the charging cable, the first charging head, the second charging head and the main control module; The main control module controls the on / off of the charging cable by controlling the working state of the first switch module, and the main control module controls the on / off of 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 line includes a first charging line and a second charging line, the first switch module includes a first switch and a first relay body, the first switch is arranged on the first charging line, and the first relay body is respectively connected to the second charging line and the first output port of the main control module; When the first output port outputs a first voltage, the first switch is turned off to disconnect the charging line; when the first output port outputs a second voltage, the first relay body controls the first switch to connect to connect the charging line.

4. The split-line charging device according to claim 3, characterized in that: The main control module is provided with a first input port, and the first input port 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 line of the charging gun. The ACDC module is also connected to the main control module through a positive line and a ground line, and the first input port is connected to the positive line.

6. The split-line charging device according to claim 2, characterized in that: The charging line includes a first charging line and a second charging line, the second switch module includes a second switch and a second relay body, the second switch is respectively connected to the first charging line, the first charging head and the second charging head, and the second relay body is connected to the second output port and the ground port of the main control module; 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 line 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 line is connected to the second charging head.

7. The split-line 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, and the third relay body is respectively connected to the third output port and the ground port of the main control module; Among them, when the third output port outputs the sixth voltage, the third switch is disconnected; when the third output port outputs the 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 the 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 further includes a fourth output port and a fifth output port, the fourth output port is connected to the first charging head, the fifth output port is connected to the second charging head, and the fourth output port and the fifth output port are respectively used to output a ninth voltage; Among them, after 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; after 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 further includes a signal connection line, one end of which is connected to the signal input port of the main control module, and 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; Wherein, the third switch is connected to the signal connection line, and when the branch line charging device is connected to the charging gun and the third switch is connected, 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 also includes a first communication terminal and a second communication terminal, and the first communication terminal and the second communication terminal are used to connect with the first communication terminal and the second communication terminal of the main control module of the extended branch 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 provided with a CC signal terminal, and the CC signal terminal is connected to the resistance module of the charging gun. The CC signal terminal detects the connection status between the branch line charging device and the charging gun by detecting the resistance of the resistance module.

12. The split-line charging device according to claim 1, characterized in that: The split-line charging device further includes a ground line, a first resistance module and a second resistance module, wherein the first resistance module is connected to the ground line and the first charging head, and the second resistance module is connected to the second charging head and the ground line.

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