Charging devices and vehicles

Abstract

This application discloses a charging device and a vehicle. The charging device includes an AC charging base, a fixed charging structure electrically connected to the AC charging base, and a three-phase AC charger detachably connected to the fixed charging structure. The AC charging base is used to connect to single-phase AC power or three-phase AC power. The fixed charging structure includes an on-board AC charger, which converts single-phase AC power to DC power, and the three-phase AC charger, which converts three-phase AC power to DC power. The on-board AC charger and the three-phase AC charger are not simultaneously in operation. In this embodiment, the user can choose to charge using a high-output-power three-phase AC charger or a low-output-power on-board AC charger according to actual needs, to meet the user's different output power requirements.

Description

Technical Field

[0001] This application relates to the field of vehicle charging technology, and in particular to a charging device and a vehicle. Background Technology

[0002] Electric vehicles can be charged using AC charging, DC charging, and other methods.

[0003] In AC charging, the AC mains power is used, and the AC charger in the vehicle system converts the AC power to DC power for charging. In DC charging, DC power is used, and an external DC fast charging station adapts and converts the mains power to charge the vehicle.

[0004] However, in AC charging, the AC charger in the charging system is connected to single-phase AC power, and its output power is fixed and low, which cannot meet the user's needs for different output power. Utility Model Content

[0005] This application provides a charging device and a vehicle, which aims to at least solve the technical problem in the prior art that the output power of the charging system in AC charging is fixed and low, and cannot meet the user's needs for different output power.

[0006] In a first aspect, embodiments of this application provide a charging device, including an AC charging base, a fixed charging structure electrically connected to the AC charging base, and a three-phase AC charger detachably connected to the fixed charging structure.

[0007] The AC charging dock is used to connect to single-phase AC power or three-phase AC power. The fixed charging structure includes a vehicle-mounted AC charger, which is used to convert the single-phase AC power into DC power. The three-phase AC charger is used to convert the three-phase AC power into DC power. The vehicle-mounted AC charger and the three-phase AC charger are not in operation at the same time.

[0008] Optionally, the fixed charging structure further includes an input adapter and an output adapter, wherein the AC charging dock, the input adapter, the vehicle AC charger, and the output adapter are electrically connected in sequence;

[0009] The three-phase AC charger is detachably connected to the input adapter via a first connecting line and detachably connected to the output adapter via a second connecting line.

[0010] Optionally, one end of the first connecting line is fixedly connected to the three-phase AC charger, and the other end is connected to a first connector. The input adapter includes an output connector, and the first connector is plugged into the output connector.

[0011] One end of the second connecting line is fixedly connected to the three-phase AC charger, and the other end is connected to a second connector. The output adapter includes an access connector, and the second connector is plugged into the access connector.

[0012] Optionally, one end of the first connecting line is fixedly connected to the input terminal of the three-phase AC charger, and the other end is connected to a first connector. The input adapter includes an output connector, and the first connector is plugged into the output connector.

[0013] One end of the second connecting line is fixedly connected to the output terminal of the three-phase AC charger, and the other end is connected to a second connector. The output adapter includes an access connector, and the second connector is plugged into the access connector.

[0014] Optionally, the first electronically controlled switch is disposed in the input adapter and electrically connected to the output connector, and the second electronically controlled switch is disposed in the output adapter and electrically connected to the input connector;

[0015] The first and second electronically controlled switching devices are electrically connected to the vehicle-mounted AC charger.

[0016] Optionally, of the first connector and the outlet connector, at least the outlet connector is provided with a first electrical interlocking structure, and of the second connector and the inlet connector, at least the inlet connector is provided with a second electrical interlocking structure. The first electrical interlocking structure and the second electrical interlocking structure are electrically connected to the vehicle AC charger.

[0017] Optionally, the input adapter has a first input terminal and a first output terminal, wherein the first input terminal is electrically connected to the first output terminal and the output connector;

[0018] The first access terminal is electrically connected to the AC charging dock via an input line, and the first output terminal is electrically connected to the input terminal of the vehicle AC charger via a third connection line.

[0019] One end of the input line is fixedly connected to the AC charging dock, and the other end is fixedly connected to the first access terminal. One end of the third connection line is fixedly connected to the first output terminal, and the other end is fixedly connected to the input terminal of the vehicle AC charger.

[0020] Optionally, the first access terminal includes a three-phase access terminal, a neutral access terminal, and a ground access terminal; the first output terminal includes a single-phase output terminal, a first neutral output terminal, and a first ground output terminal; and the output connector includes a three-phase output terminal, a second neutral output terminal, and a second ground output terminal.

[0021] Optionally, the output adapter has a second input terminal and a second output terminal, the second output terminal being electrically connected to the second input terminal and the input connector, and being used for electrical connection to a battery pack;

[0022] The second access terminal is electrically connected to the output terminal of the vehicle AC charger via a fourth connecting line. One end of the fourth connecting line is fixedly connected to the output terminal of the vehicle AC charger, and the other end is fixedly connected to the second access terminal of the output adapter.

[0023] Secondly, embodiments of this application provide a vehicle including a battery pack and a charging device as described above, wherein the charging device is electrically connected to the battery pack.

[0024] In this embodiment, the charging device includes a three-phase AC charger and a vehicle-mounted AC charger. The vehicle-mounted AC charger is used to convert single-phase AC power into DC power, and the three-phase AC charger is used to convert three-phase AC power into DC power. The vehicle-mounted AC charger and the three-phase AC charger are not in operation at the same time. Users can choose to charge using a three-phase AC charger with high output power or a vehicle-mounted AC charger with low output power according to their actual needs, so as to meet the user's needs for different output power.

[0025] Furthermore, the three-phase AC charger is detachably connected to the fixed charging structure. Being detachable and not vehicle-mounted, it does not need to be a standard feature of the vehicle. Users can choose to install the three-phase AC charger based on their actual needs. For some users who require low-cost charging, the three-phase AC charger can be omitted, resulting in almost no increase in overall vehicle cost. For other users who require higher charging power and shorter charging time, the three-phase AC charger can be installed. In summary, this charging device can simultaneously meet the needs of both groups of users.

[0026] Furthermore, when charging via a three-phase AC charger, the output power is more than three times that of an onboard AC charger, reducing charging time by over 66%. In addition, compared to DC charging stations, three-phase AC chargers are less expensive and can be privately owned by users.

[0027] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an existing charging system;

[0029] Figure 2 Schematic diagram of the charging device provided in the embodiments of this application Figure 1 ;

[0030] Figure 3 Schematic diagram of the charging device provided in the embodiments of this application Figure 2 ;

[0031] Figure 4 This is a schematic diagram of the structure of the input adapter in the charging device provided in the embodiments of this application;

[0032] Figure 5 This is a schematic diagram of the output adapter in the charging device provided in the embodiments of this application.

[0033] Figure label:

[0034] 1-AC charger, 2-power battery;

[0035] 10-Fixed charging structure, 11-Input adapter, 111-L1 adapter cable, 112-L2 adapter cable, 113-L3 adapter cable, 114-Neutral adapter cable, 115-Ground adapter cable, 116-First adapter cable, 117-Second adapter cable, 118-Third adapter cable, 119-First adapter point, 12-Vehicle AC charger, 13-Output adapter, 131-Positive adapter cable, 132-Negative adapter cable, 133-Fourth adapter cable, 134-Fifth adapter cable, 14-Input line, 15-Third connection line, 16-Fourth connection line, 17-Output line;

[0036] 20 - Three-phase AC charger, 30 - First connecting wire, 40 - Second connecting wire, 50 - Battery pack. Detailed Implementation

[0037] 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 may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0038] Reference Figure 1In AC charging, the AC mains power supply is used, and the AC charger 1 in the charging system converts the AC power into DC power to charge the power battery 2. However, in AC charging, the AC charger 1 in the charging system is connected to single-phase AC power, and its output power is fixed, for example, 6.6 kW (kilowatts), which is relatively low and cannot meet the user's needs for different output power. To solve the above problems, this application provides a charging device and a vehicle, which are described in detail below.

[0039] Firstly, referring to Figure 2 and Figure 3 This application discloses a charging device, including an AC charging base, a fixed charging structure 10 electrically connected to the AC charging base, and a three-phase AC charger 20 detachably connected to the fixed charging structure 10. The AC charging base is used to connect to single-phase AC power or three-phase AC power. The fixed charging structure 10 includes a vehicle-mounted AC charger 12, which is used to convert single-phase AC power into DC power. The three-phase AC charger 20 is used to convert three-phase AC power into DC power. The vehicle-mounted AC charger 12 and the three-phase AC charger 20 are not in working state at the same time.

[0040] This charging device is used for electric vehicles that require charging, such as pure electric vehicles and plug-in hybrid electric vehicles. The AC charging socket, also known as an AC charging port, is used to connect to a charging gun, which is connected to a charging cable. When the electric vehicle is charging, the charging gun is inserted into the AC charging socket, and AC power from outside the vehicle is transmitted to the vehicle through the charging cable and the charging gun.

[0041] The charging cable includes L1, L2, L3, N, and PE wires. In a three-phase AC power supply, L1 is the first phase, L2 is the second phase, L3 is the third phase, N is the neutral wire, and PE is the protective ground wire. The AC charging socket includes L1, L2, L3, N, and PE terminals. After the charging gun is inserted into the AC charging socket, the L1, L2, L3, N, and PE terminals in the AC charging socket are electrically connected to the L1, L2, L3, N, and PE wires in the charging cable, respectively, through the charging gun.

[0042] The English abbreviation for On-Board Charger 12 is OBC. When the On-Board Charger 12 is in working condition, it converts single-phase AC power to DC power, specifically converting single-phase 220V AC power from the AC mains into DC output. When the Three-Phase AC Charger 20 is in working condition, it converts three-phase AC power to DC power, specifically converting three-phase 380V AC power from the AC mains into DC output. The On-Board Charger 12 and the Three-Phase AC Charger 20 cannot be in working condition simultaneously; that is, at any given time, only one of them is in working condition.

[0043] The charging device has a first state and a second state. Figure 2 In the first state, the charging device is connected to the fixed charging structure 10, and the battery pack 50 is charged through the three-phase AC charger 20 or the vehicle AC charger 12. Figure 3 In the second state, the three-phase AC charger 20 is disconnected from the fixed charging structure 10, and is not connected to the fixed charging structure 10. The battery pack 50 can only be charged via the on-board AC charger 12. The output power of the three-phase AC charger 20 is greater than the output power of the on-board AC charger 12; the output power of the on-board AC charger 12 can be 6.6kW, while the output power of the three-phase charger 20 can be 22kW.

[0044] In this embodiment, the charging device includes a three-phase AC charger 20 and a vehicle-mounted AC charger 12. The vehicle-mounted AC charger 12 is used to convert single-phase AC power into DC power, and the three-phase AC charger 20 is used to convert three-phase AC power into DC power. The vehicle-mounted AC charger 12 and the three-phase AC charger 20 are not in working state at the same time. Users can choose to charge using the three-phase AC charger 20 with high output power or the vehicle-mounted AC charger 12 with low output power according to their actual needs, so as to meet the user's needs for different output power.

[0045] Furthermore, the three-phase AC charger 20 is detachably connected to the fixed charging structure 10. Since the three-phase AC charger 20 is detachable and not vehicle-mounted, it does not need to be a basic vehicle configuration. Users can choose to install the three-phase AC charger 20 according to their actual needs. For some users who require low-cost charging, the three-phase AC charger 20 can be omitted, resulting in almost no increase in overall vehicle cost. For other users who require increased charging power and shorter charging time, the three-phase AC charger 20 can be installed. In summary, this charging device can simultaneously meet the needs of both types of users.

[0046] Furthermore, when charging via the three-phase AC charger 20, its output power is more than three times that of the on-board AC charger 12, resulting in a charging time reduction of over 66%. In addition, compared to DC charging stations, the three-phase AC charger 20 is less expensive and can be privately owned by the user.

[0047] In some embodiments, refer to Figure 2 and Figure 3 The fixed charging structure 10 also includes an input adapter 11 and an output adapter 13. The AC charging base, the input adapter 11, the vehicle AC charger 12 and the output adapter 13 are electrically connected in sequence. The three-phase AC charger 20 is detachably connected to the input adapter 11 via the first connecting line 30 and detachably connected to the output adapter 13 via the second connecting line 40.

[0048] The vehicle-mounted AC charger 12 is electrically connected to the AC charging dock via an input adapter 11, and is electrically connected to the battery pack 50 via an output adapter 13. When the three-phase AC charger 20 is connected to the fixed charging structure 10, the three-phase AC charger 20 is electrically connected to the AC charging dock via an input adapter 11, and is electrically connected to the battery pack 50 via an output adapter 13.

[0049] As one example, one end of the first connecting wire 30 is fixedly connected to the three-phase AC charger 20, and the other end is detachably connected to the input adapter 11. As another example, one end of the first connecting wire 30 is detachably connected to the three-phase AC charger 20, and the other end is detachably connected to the input adapter 11. As yet another example, one end of the first connecting wire 30 is detachably connected to the three-phase AC charger 20, and the other end is fixedly connected to the input adapter 11.

[0050] As one example, one end of the second connecting wire 40 is fixedly connected to the three-phase AC charger 20, and the other end is detachably connected to the output adapter 13. As another example, one end of the second connecting wire 40 is detachably connected to the three-phase AC charger 20, and the other end is detachably connected to the output adapter 13. As yet another example, one end of the second connecting wire 40 is detachably connected to the three-phase AC charger 20, and the other end is fixedly connected to the output adapter 13.

[0051] The detachable connection between the end of the first connecting line 30 and the input adapter 11 or the three-phase AC charger 20 can be achieved using a detachable connector, such as a plug-in connector. Similarly, the detachable connection between the end of the second connecting line 40 and the output adapter 13 or the three-phase AC charger 20 can be achieved using a detachable connector, such as a plug-in connector or a threaded connector. In this embodiment, the input adapter 11 and the output adapter 13 provide access points for the three-phase AC charger 20 to connect to the fixed charging structure 10, facilitating its connection.

[0052] In some embodiments, refer to Figure 2 and Figure 3 One end of the first connecting line 30 is fixedly connected to the input terminal of the three-phase AC charger 20, and the other end is connected to the first connector. The input adapter 11 includes an output connector, and the first connector and the output connector are plugged into each other. One end of the second connecting line 40 is fixedly connected to the output terminal of the three-phase AC charger 20, and the other end is connected to the second connector. The output adapter 13 includes an input connector, and the second connector and the input connector are plugged into each other.

[0053] The connection between one end of the first connecting line 30 and the input terminal of the three-phase AC charger 20 can be either soldered or screw-fitted; the connection cannot be easily disassembled. The first connector can be a male connector, and correspondingly, the output connector is a female connector. The second connector can be a male connector, and correspondingly, the input connector is a female connector. The terminals in the male connector are pins, and the terminals in the female connector are sockets.

[0054] In this embodiment, the first connector is plugged into the outlet connector and the second connector is plugged into the inlet connector. The three-phase AC charger 20 can be installed by inserting the first connector and the second connector, and the three-phase AC charger 20 can be disassembled by pulling out the first connector and the second connector. This enables the three-phase AC charger 20 to be flexibly disassembled and conveniently installed, allowing users to disassemble or install the three-phase AC charger 20 themselves.

[0055] In some embodiments, the charging device further includes a first electronically controlled switch and a second electronically controlled switch. When the three-phase AC charger 20 is connected to the fixed charging structure 10, the first electronically controlled switch is used to control the on / off connection of the input adapter 11 and the three-phase AC charger 20, and the second electronically controlled switch is used to control the on / off connection of the output adapter 13 and the three-phase AC charger 20.

[0056] When the three-phase AC charger 20 is connected to the fixed charging structure 10, the first connector and the output connector are engaged, and the second connector and the input connector are engaged. The first and second electronically controlled switching devices can be relays, MOSFETs (metal-oxide-semiconductor field-effect transistors), etc. The first electronically controlled switching device is preferably a first relay, and the second electronically controlled switching device is preferably a second relay. When the first and second relays are closed, the electrical connection between the three-phase AC charger 20 and the input adapter 11 and the output adapter 13 is conducted; when the first and second relays are open, the electrical connection between the three-phase AC charger 20 and the input adapter 11 and the output adapter 13 is disconnected.

[0057] The first electronically controlled switch can be located on the input adapter 11, the first connecting line 30, or the three-phase AC charger 20. The first electronically controlled switch can be controlled by the on-board AC charger 12 or by other control modules. The second electronically controlled switch can be located on the output adapter 13, the second connecting line 40, or the three-phase AC charger 20. The second electronically controlled switch can be controlled by the on-board AC charger 12 or by other control modules.

[0058] In this embodiment, after the three-phase AC charger 20 is connected to the fixed charging structure 10, the on / off connection of the three-phase AC charger 20 with the input adapter 11 and the output adapter 13 can be controlled by controlling the first and second electronic control switching devices, thereby enabling the three-phase AC charger 20 to be selectively activated as needed.

[0059] In some embodiments, a first electronically controlled switch (not shown) is disposed in the input adapter 11 and electrically connected to the output connector, and a second electronically controlled switch (not shown) is disposed in the output adapter 13 and electrically connected to the input connector; the first electronically controlled switch and the second electronically controlled switch are electrically connected to the vehicle AC charger 12.

[0060] The vehicle-mounted AC charger 12 includes a control unit, and a first electronically controlled switch and a second electronically controlled switch are specifically electrically connected to the control unit in the vehicle-mounted AC charger 12. There are five first electronically controlled switches, which can be respectively located on the first adapter cable 116, L2 adapter cable, L3 adapter cable, second adapter cable 117, and third adapter cable 118 in the input adapter 11. In this embodiment, the first and second electronically controlled switches can be controlled by the vehicle-mounted AC charger 12, eliminating the need for additional control devices.

[0061] In some embodiments, of the first connector and the outlet connector, at least the outlet connector is provided with a first electrical interlocking structure, and of the second connector and the inlet connector, at least the inlet connector is provided with a second electrical interlocking structure. The first electrical interlocking structure and the second electrical interlocking structure are electrically connected to the vehicle AC charger 12.

[0062] Specifically, the first and second electrical interlocking structures are electrically connected to the control unit in the vehicle AC charger 12. The vehicle AC charger 12 determines whether the first connector and the outlet connector are effectively connected by monitoring whether the two first electrical contacts in the first electrical interlocking structure are closed. Effective connection means that the first connector is fully inserted into the outlet connector. Before the first connector and the outlet connector are effectively connected, the two first electrical contacts of the first electrical interlocking structure are not closed; after the first connector and the outlet connector are effectively connected, the two first electrical contacts of the first electrical interlocking structure are closed.

[0063] The vehicle-mounted AC charger 12 determines whether the second connector and the access connector are effectively connected by monitoring whether the two second electrical contacts in the second electrical interlock structure are closed. Effective connection means that the second connector is fully inserted into the access connector. Before the second connector and the access connector are effectively connected, the two second electrical contacts in the second electrical interlock structure are not closed. After the second connector and the access connector are effectively connected, the two second electrical contacts in the second electrical interlock structure are closed.

[0064] The first connector and the outlet connector can be mechanically interlocked through a first mechanical interlocking structure, and the second connector and the inlet connector can be mechanically interlocked through a second mechanical interlocking structure. The first and second mechanical interlocking structures can be snap-locks, rotary locks, sliding locks, etc.

[0065] The first electrical interlocking structure can be a first U-shaped metal spring, with two first electrical contacts integrated into one first U-shaped metal spring. In this case, only the outgoing connector has the first electrical interlocking structure. Before the first connector and the outgoing connector are effectively connected, the two first electrical contacts at the two ends of the first U-shaped metal spring are not closed. After the first connector and the outgoing connector are effectively connected, the two first electrical contacts at the two ends of the first U-shaped metal spring are closed.

[0066] The second electrical interlocking structure can be a second U-shaped metal spring, with two second electrical contacts integrated into one second U-shaped metal spring. In this case, only the access connector has the second electrical interlocking structure. Before the second connector is effectively inserted into the access connector, the two second electrical contacts at the two ends of the second U-shaped metal spring are not closed. After the second connector is effectively inserted into the access connector, the two second electrical contacts at the two ends of the second U-shaped metal spring are closed.

[0067] In other examples, the first electrical interlock structure and the second electrical interlock structure can be a pair of interlocking electrical contacts. For the first electrical interlock structure, two of the pair of interlocking electrical contacts are respectively located on the first connector and the outlet connector. For the second electrical interlock structure, two of the pair of interlocking electrical contacts are respectively located on the second connector and the inlet connector.

[0068] In this embodiment, by setting the first electrical interlock structure and the second electrical interlock structure, it is possible to determine whether the first connector and the outlet connector are effectively plugged in, and whether the second connector and the inlet connector are effectively plugged in, so as to ensure that the three-phase AC charger 20 is activated only after the first connector and the outlet connector are effectively plugged in and the second connector and the inlet connector are effectively plugged in, thereby ensuring the normal operation of the three-phase AC charger 20.

[0069] In some embodiments, refer to Figure 2 and Figure 3 The input adapter 11 has a first input terminal and a first output terminal. The first input terminal is electrically connected to the first output terminal and the output connector. The first input terminal is electrically connected to the AC charging dock via an input line 14, and the first output terminal is electrically connected to the input terminal of the vehicle AC charger 12 via a third connecting line 15. One end of the input line 14 is fixedly connected to the AC charging dock, and the other end is fixedly connected to the first input terminal. One end of the third connecting line 15 is fixedly connected to the first output terminal, and the other end is fixedly connected to the input terminal of the vehicle AC charger 12.

[0070] The input line 14 can be connected to the AC charging dock and the first input terminal by welding or screw crimping, but this connection method does not allow for easy disassembly. Similarly, the third connection line 15 can be connected to the input terminal and the first output terminal of the vehicle AC charger 12 by welding or screw crimping, but this connection method also does not allow for easy disassembly. In this embodiment, the two ends of the input line 14 are fixedly connected to the AC charging dock and the first input terminal, respectively, and the two ends of the third connection line 15 are fixedly connected to the input terminal and the first output terminal of the vehicle AC charger 12, respectively, which improves the stability and reliability of the electrical connection.

[0071] In some embodiments, the first access terminal includes a three-phase access terminal, a neutral access terminal, and a ground access terminal; the first output terminal includes a single-phase output terminal, a first neutral output terminal, and a first ground output terminal; and the output connector includes a three-phase output terminal, a second neutral output terminal, and a second ground output terminal.

[0072] The three-phase input terminals include L1, L2, and L3 input terminals, and the three-phase output terminals include L1, L2, and L3 output terminals. The first input terminal is used to input single-phase AC power or three-phase AC power, the first output terminal is used to output single-phase AC power to the vehicle AC charger 12, and the output connector is used to output three-phase AC power to the three-phase AC charger 20.

[0073] Input line 14 includes five input sub-wires, which are connected to the L1, L2, L3, N, and PE terminals of the AC charging dock and the L1, L2, L3, neutral, and ground terminals of the first input terminal of the input adapter 11. Third connection line 15 includes three third sub-wires, which are connected to the single-phase output terminal, first neutral output terminal, and first ground output terminal of the input adapter 11 and the L1, N, and PE terminals of the input terminal of the vehicle AC charger 12. First connection line 30 includes five first sub-wires, which are connected to the L1, L2, L3, second neutral, and second ground output terminals of the output connector of the AC charging dock and the L1, L2, L3, N, and PE terminals of the input terminal of the three-phase AC charger 20.

[0074] Reference Figure 4 The input adapter 11 includes input adapter cables, which include L1 adapter cable 111, L2 adapter cable 112, L3 adapter cable 113, neutral adapter cable 114, ground adapter cable 115, first adapter cable 116, second adapter cable 117, and third adapter cable 118. L1 adapter cable 111 is electrically connected to the L1 input terminal and the single-phase output terminal. The first adapter cable 116 is electrically connected to both L1 adapter cable 111 and the L1 output terminal, and the connection point between the first adapter cable 116 and L1 adapter cable 111 is the first connection point 119. L2 adapter cable 112 is electrically connected to both the L2 input terminal and the L2 output terminal, and L3 adapter cable 113 is electrically connected to both the L3 input terminal and the L3 output terminal. Neutral adapter 114 is electrically connected to the neutral input terminal and the first neutral output terminal. Second adapter 117 is electrically connected to neutral adapter 114 and the second neutral output terminal; the connection point between second adapter 117 and neutral adapter 114 is the second adapter point. Ground adapter 115 is electrically connected to the ground input terminal and the first ground output terminal. Third adapter 118 is electrically connected to ground adapter 115 and the second ground output terminal; the connection point between third adapter 118 and ground adapter 115 is the third adapter point.

[0075] In some embodiments, refer to Figure 2 and Figure 3The output adapter 13 has a second input terminal and a second output terminal. The second output terminal is electrically connected to the second input terminal and the input connector, and is used to electrically connect to the battery pack 50. The second input terminal is electrically connected to the output terminal of the vehicle AC charger 12 via a fourth connecting line 16. One end of the fourth connecting line 16 is fixedly connected to the output terminal of the vehicle AC charger 12, and the other end is fixedly connected to the second input terminal of the output adapter 13.

[0076] The fourth connecting wire 16 can be connected to the output terminal and the second input terminal of the vehicle AC charger 12 by welding or screw pressing, but this connection method does not allow for easy disassembly. The second output terminal of the output adapter 13 is electrically connected to the battery pack 50 via the output wire 17, with both ends of the output wire 17 fixedly connected to the second output terminal and the battery pack 50, respectively. In this embodiment, the two ends of the fourth connecting wire 16 are fixedly connected to the AC charging socket and the first input terminal, respectively, and the two ends of the third connecting wire 15 are fixedly connected to the output terminal and the second input terminal of the vehicle AC charger 12, which can improve the stability and reliability of the electrical connection.

[0077] The second input terminal of the output adapter 13 includes a first positive input terminal and a first negative input terminal, and the second output terminal of the output adapter 13 includes a positive output terminal and a negative output terminal. The fourth connecting line 16 includes two fourth sub-wires, which are connected to the OUT+ and OUT- terminals of the output terminal of the vehicle AC charger 12 and the first positive and first negative input terminals of the second input terminal of the output adapter 13. The output line 17 includes two output sub-wires, which are connected to the positive and negative output terminals of the second output terminal of the output adapter 13 and the HV+ and HV- terminals of the battery pack 50. The input connector includes a second positive input terminal and a second negative input terminal. The second connecting line 40 includes two second sub-wires, which are connected to the OUT+ and OUT- terminals of the output terminal of the three-phase AC charger 20 and the second positive and second negative input terminals of the input connector of the output adapter 13.

[0078] Reference Figure 5 The output adapter 13 includes output adapter cables, which include a positive adapter cable 131, a negative adapter cable 132, a fourth adapter cable 133, and a fifth adapter cable 134. The positive adapter cable 131 is electrically connected to a first positive input terminal and a positive output terminal. The fourth adapter cable 133 is electrically connected to the positive adapter cable 131 and a second positive input terminal; the connection point between the fourth adapter cable 133 and the positive adapter cable 131 is the fourth adapter point. The negative adapter cable 132 is electrically connected to a first negative input terminal and a negative output terminal. The fifth adapter cable 134 is electrically connected to the negative adapter cable 132 and a second negative input terminal; the connection point between the fifth adapter cable 134 and the negative adapter cable 132 is the fifth adapter point.

[0079] The charging device has a first state and a second state, as shown in the reference. Figure 2 In the first state, the three-phase AC charger 20 is connected to the fixed charging structure 10. The three-phase AC charger 20 is connected to the input adapter 11 and the output adapter 13 via the first connecting line 30 and the second connecting line 40. The first connector is effectively inserted into the output connector, and the second connector is effectively inserted into the input connector. (Refer to...) Figure 3 In the second state, the detachable connection between the three-phase AC charger 20 and the fixed charging structure 10 is disconnected, the first connecting line 30 and the input adapter 11, the second connecting line 40 and the output adapter 13 are not connected in place, the first connector and the output connector are not effectively plugged in, and the second connector and the input connector are not effectively plugged in.

[0080] Charging Requirement 1: Voltage input is received at terminals L1, L2, and L3 of the AC charging dock, indicating a need for three-phase AC charging to increase charging power and shorten charging time. Charging Requirement 2: Voltage input is received only at terminal L1 of the AC charging dock, with no voltage input at terminals L2 and L3, indicating a need for single-phase AC charging. Normal power charging is sufficient. The voltage input status of the AC charging dock can be detected using the vehicle AC charger 12.

[0081] When the charging device is in the first state and the charging demand is one, the vehicle AC charger 12 controls the first relay and the second relay to close, thereby making the electrical connection between the three-phase AC charger 20 and the input adapter 11 and the output adapter 13 connected. Three-phase AC power is input to the three-phase AC charger 20, and the three-phase AC charger 20 is activated to charge, realizing the conversion of three-phase AC power to DC power. At this time, the vehicle AC charger 12 itself does not start working and is in a non-working state, and cannot realize the conversion of AC power to DC power.

[0082] When the charging device is in the first state and the charging demand is the second, the vehicle AC charger 12 controls the first relay and the second relay to disconnect, thereby disconnecting the electrical connection between the three-phase AC charger 20 and the input adapter 11 and the output adapter 13. The three-phase AC power cannot be input to the three-phase AC charger 20, and the three-phase AC charger 20 is not activated. At this time, the vehicle AC charger 12 starts working on its own and is in working state, realizing the conversion of single-phase AC power to DC power.

[0083] When the charging device is in the second state, regardless of whether it is charging demand one or charging demand two, it will work according to charging demand two by default. That is, the vehicle AC charger 12 controls the first relay and the second relay to disconnect, the three-phase AC charger 20 is not enabled, and the vehicle AC charger 12 starts working on its own.

[0084] Secondly, embodiments of this application provide a vehicle including a battery pack and the charging device provided in the first aspect, wherein the charging device is electrically connected to the battery pack. This vehicle is an electric vehicle requiring charging, such as a pure electric vehicle or a plug-in hybrid electric vehicle.

[0085] The vehicle includes a body, which may have recesses for inserting a three-phase AC charger 20 into the charging device. The input adapter 11 and output adapter 13 can be bolted to the body.

[0086] The vehicle also includes a vehicle controller, which is electrically connected to the on-board AC charger 12. The vehicle controller can control whether the on-board AC charger 12 starts working, that is, control whether the on-board AC charger 12 is in a working state or a non-working state.

[0087] Since the vehicle includes the aforementioned charging device, it also possesses the beneficial effects of the aforementioned charging device, which will not be elaborated here.

[0088] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0089] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims. All of these forms are within the protection scope of this application.

Claims

1. A charging device, characterized by, The invention includes an AC charging dock, a fixed charging structure electrically connected to the AC charging dock, and a three-phase AC charger detachably connected to the fixed charging structure. The AC charging dock is used to connect to single-phase AC power or three-phase AC power. The fixed charging structure includes a vehicle-mounted AC charger, which is used to convert the single-phase AC power into DC power. The three-phase AC charger is used to convert the three-phase AC power into DC power. The vehicle-mounted AC charger and the three-phase AC charger are not in operation at the same time.

2. The charging device of claim 1, wherein, The fixed charging structure also includes an input adapter and an output adapter, and the AC charging dock, the input adapter, the vehicle AC charger and the output adapter are electrically connected in sequence; The three-phase AC charger is detachably connected to the input adapter via a first connecting line and detachably connected to the output adapter via a second connecting line.

3. The charging device of claim 2, wherein, One end of the first connecting line is fixedly connected to the input terminal of the three-phase AC charger, and the other end is connected to a first connector. The input adapter includes an output connector, and the first connector is plugged into the output connector. One end of the second connecting line is fixedly connected to the output terminal of the three-phase AC charger, and the other end is connected to a second connector. The output adapter includes an access connector, and the second connector is plugged into the access connector.

4. The charging device of claim 3, wherein, The charging device further includes a first electronically controlled switch and a second electronically controlled switch. When the three-phase AC charger is connected to the fixed charging structure, the first electronically controlled switch is used to control the on / off connection of the input adapter and the three-phase AC charger, and the second electronically controlled switch is used to control the on / off connection of the output adapter and the three-phase AC charger.

5. The charging device of claim 4, wherein, The first electronically controlled switch is disposed in the input adapter and electrically connected to the output connector; the second electronically controlled switch is disposed in the output adapter and electrically connected to the input connector. The first and second electronically controlled switching devices are electrically connected to the vehicle-mounted AC charger.

6. The charging device according to any one of claims 3 to 5, characterized in that, Of the first connector and the outlet connector, at least the outlet connector is provided with a first electrical interlocking structure, and of the second connector and the inlet connector, at least the inlet connector is provided with a second electrical interlocking structure. The first electrical interlocking structure and the second electrical interlocking structure are electrically connected to the vehicle AC charger.

7. The charging device according to any one of claims 3 to 5, characterized in that, The input adapter has a first input terminal and a first output terminal, and the first input terminal is electrically connected to the first output terminal and the output connector. The first access terminal is electrically connected to the AC charging dock via an input line, and the first output terminal is electrically connected to the input terminal of the vehicle AC charger via a third connection line. One end of the input line is fixedly connected to the AC charging dock, and the other end is fixedly connected to the first access terminal. One end of the third connection line is fixedly connected to the first output terminal, and the other end is fixedly connected to the input terminal of the vehicle AC charger.

8. The charging device of claim 7, wherein, The first access terminal includes a three-phase access terminal, a neutral access terminal, and a ground access terminal; the first output terminal includes a single-phase output terminal, a first neutral output terminal, and a first ground output terminal; and the output connector includes a three-phase output terminal, a second neutral output terminal, and a second ground output terminal.

9. The charging device according to any one of claims 3 to 5, characterized in that, The output adapter has a second input terminal and a second output terminal, the second output terminal being electrically connected to the second input terminal and the input connector, and is used for electrical connection to a battery pack; The second access terminal is electrically connected to the output terminal of the vehicle AC charger via a fourth connecting line. One end of the fourth connecting line is fixedly connected to the output terminal of the vehicle AC charger, and the other end is fixedly connected to the second access terminal of the output adapter.

10. A vehicle characterized by comprising: It includes a battery pack and a charging device as described in any one of claims 1 to 9, wherein the charging device is electrically connected to the battery pack.

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