Charging and discharging equipment for new energy automobile

Abstract

The utility model discloses a charging and discharging device for a new energy automobile. The charging and discharging equipment comprises a direct-current electricity taking unit and an alternating-current charging unit. The input end of the direct-current electricity taking unit is connected with a direct-current charging interface of the new energy automobile, the output end of the direct-current electricity taking unit is connected with electric equipment, and the direct-current electricity taking unit is used for converting direct-current electric energy stored in a battery of the new energy automobile into alternating-current electric energy and supplying power to the electric equipment; the input end of the alternating-current charging unit is connected with the output end of the alternating-current power supply, and the output end of the alternating-current charging unit is connected with an alternating-current charging interface of the new energy automobile; the input end of the direct current electricity taking unit is connected with a direct current charging interface of one new energy automobile, the output end of the alternating current charging unit is connected with an alternating current charging interface of the other new energy automobile, and the output end of the direct current electricity taking unit is connected with the input end of the alternating current charging unit. And one new energy automobile charges the other new energy automobile.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and particularly relates to a charging and discharging device for new energy vehicles. Background Technique

[0002] In recent years, with the enhancement of environmental awareness and policy support, the new energy vehicle industry has developed rapidly. Correspondingly, the demand for new energy vehicle charging and discharging equipment has also shown a continuous expanding trend. In order to meet the growing market demand, the production and construction speed of various charging and discharging equipment has been continuously accelerated, promoting the rapid progress of related technologies. Currently, with the promotion of applications in multiple fields such as power electronics, Internet of Things, and big data, the technical level of new energy vehicle charging and discharging equipment has been significantly improved, and the intelligence and efficiency levels of the equipment have been continuously enhanced.

[0003] The main types of new energy vehicle charging and discharging equipment include DC fast charging and AC slow charging, in order to meet the charging needs in different scenarios. Nevertheless, there is still a certain gap between the construction scale of existing charging and discharging equipment and the popularization speed of new energy vehicles. Although the number of charging facilities is increasing, their distribution is not balanced, and the charging facilities in some areas are relatively insufficient, bringing inconvenience to users. Therefore, in order to meet specific usage requirements, some new energy vehicle owners sometimes need to prepare their own portable charging and discharging equipment.

[0004] Most of the existing charging and discharging equipment in the market has relatively single functions. Either it only has a charging function or only has a discharging function, and it cannot meet diverse usage requirements simultaneously, with a small scope of application. Content of the Utility Model

[0005] For this reason, the embodiment of the utility model provides a charging and discharging device for new energy vehicles to solve the problems of single function and small scope of application of the existing charging and discharging equipment for new energy vehicles.

[0006] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solutions:

[0007] A charging and discharging device for new energy vehicles includes a DC power taking unit and an AC charging unit;

[0008] The input end of the DC power taking unit is connected to the DC charging interface of the new energy vehicle, the output end of the DC power taking unit is connected to the electrical equipment, and the DC power taking unit is used to convert the DC electric energy stored in the battery of the new energy vehicle into AC electric energy and supply power to the electrical equipment;

[0009] The input end of the AC charging unit is connected to the output end of the AC power supply, the output end of the AC charging unit is connected to the AC charging interface of the new energy vehicle, and the output end of the AC power supply charges the battery of the new energy vehicle through the AC charging unit;

[0010] Wherein, when the input end of the DC power taking unit is connected to the DC charging interface of one new energy vehicle, the output end of the AC charging unit is connected to the AC charging interface of another new energy vehicle, and the output end of the DC power taking unit is connected to the input end of the AC charging unit, the one new energy vehicle charges the other new energy vehicle.

[0011] Optionally, the charging and discharging device further includes a charging and discharging integrated controller;

[0012] The first end of the charging and discharging integrated controller is connected to the output end of the DC power taking unit, and the second end of the charging and discharging integrated controller is connected to the input end of the AC charging unit;

[0013] Wherein, the charging and discharging integrated controller is used to control the connection between the output end of the DC power taking unit and the input end of the AC charging unit.

[0014] Optionally, the DC power taking unit includes a discharge gun, a first relay group, a main control module, an inverter, a first detection circuit and an output socket;

[0015] The input end of the discharge gun is connected to the DC charging interface of the first new energy vehicle, and the output end of the discharge gun is respectively connected to the first detection circuit and the inverter through the first relay group;

[0016] The first detection circuit is respectively connected to the inverter and the input end of the output socket;

[0017] The first relay group, the inverter and the first detection circuit are all controlled by the main control module.

[0018] Optionally, the first detection circuit includes an input detection circuit and an output detection circuit;

[0019] The input end of the input detection circuit is connected to the output end of the first relay group, the output end of the input detection circuit is connected to the input end of the inverter, the output end of the inverter is connected to the input end of the output detection circuit, and the output end of the output detection circuit is connected to the input end of the output socket;

[0020] The input detection circuit and the output detection circuit are both controlled by the main control module.

[0021] Optionally, the first relay group includes a first relay, a second relay, and a third relay;

[0022] The input ends of the first relay and the second relay are both connected to the positive pole of the DC voltage output by the discharge gun. The output end of the first relay is connected to the input detection circuit, and the output end of the second relay is connected to the input detection circuit through a pre-charge circuit;

[0023] The input end of the third relay is connected to the negative pole of the DC voltage output by the discharge gun, and the output end of the third relay is connected to the inverter;

[0024] The first relay, the second relay, and the third relay are all controlled by the main control module.

[0025] Optionally, the discharge gun is a DC 9-hole discharge gun.

[0026] Optionally, the AC charging unit includes an input socket, a second detection circuit, a second relay group, a power supply controller, and a charging gun;

[0027] The input end of the input socket is connected to the output end of the AC power supply. The output end of the input socket is divided into two paths. One path is connected to the first input end of the second relay group through the second detection circuit, and the other path is connected to the second input end of the second relay group;

[0028] The first output end and the second output end of the second relay group are respectively connected to the input end of the charging gun. The output end of the charging gun is connected to the AC charging interface of the second new energy vehicle;

[0029] The second relay group is controlled by the power supply controller.

[0030] Optionally, the second relay group includes a fourth relay and a fifth relay;

[0031] One path of the output end of the input socket is connected to the input end of the fourth relay through the second detection circuit;

[0032] The other path of the output end of the input socket is connected to the input end of the fifth relay;

[0033] The output end of the fourth relay and the output end of the fifth relay are both connected to the input end of the charging gun. The fourth relay and the fifth relay are both controlled by the power supply controller.

[0034] Optionally, the AC charging unit further includes a leakage protector, and the leakage protector is respectively connected to the fourth relay and the fifth relay.

[0035] Optionally, the charging gun is a 7-hole AC charging gun.

[0036] The utility model has at least the following beneficial effects:

[0037] The utility model provides a charging and discharging device for new energy vehicles, which can extract DC electric energy from the battery of a new energy vehicle through a DC power taking unit and convert it into AC electric energy to supply power to various external electrical devices. It can also charge the battery of a new energy vehicle by using an external AC power supply through an AC charging unit, meeting the user's usage requirements in various scenarios and greatly improving the practicability of the charging and discharging device. At the same time, by connecting a DC power taking unit connected to one new energy vehicle to an AC charging unit connected to another new energy vehicle, the direct charging function between the two new energy vehicles can be realized, providing a flexible and convenient charging solution for users and enhancing the convenience and safety of using new energy vehicles. In addition, the design of the utility model is simple, the device is small in size and easy to carry, and can meet the user's charging needs at any time. Compared with the charging and discharging devices in the prior art, the charging and discharging device provided by the utility model has significant advantages in terms of function integration and portability, can better adapt to the diverse needs of new energy vehicle users, effectively solves the problem of incomplete functions of existing portable charging and discharging devices, and has a wide range of applications. Description of the Drawings

[0038] In order to more clearly illustrate the prior art and the present utility model, the drawings required for describing the prior art and the embodiments of the present utility model will be briefly introduced below. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other drawings can be obtained by extension according to the provided drawings without creative efforts.

[0039] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the present utility model.

[0040] Figure 1 It is a circuit principle block diagram of a charging and discharging device for new energy vehicles provided by an embodiment of the present utility model;

[0041] Figure 2 It is another circuit principle block diagram of a charging and discharging device for new energy vehicles provided by an embodiment of the present utility model. Detailed Embodiments

[0042] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more. Terms such as "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present utility model and the above-mentioned drawings are intended to distinguish the objects being referred to. For a solution with a time sequence process, this way of term expression does not have to be understood as describing a specific order or sequence. For a solution of a device structure, this way of term expression does not distinguish the importance level or positional relationship, etc.

[0044] In addition, the terms "comprising", "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units that are clearly listed, but may also include other steps or units that are inherent to these processes, methods, products or devices but are not clearly listed, or steps or units added by further optimized solutions based on the concept of the present utility model.

[0045] As Figure 1 shown, a charging and discharging device for a new energy vehicle includes a DC power taking unit and an AC charging unit;

[0046] The input end of the DC power taking unit is connected to the DC charging interface of the new energy vehicle, the output end of the DC power taking unit is connected to the electrical equipment, and the DC power taking unit is used to convert the DC electrical energy stored in the battery of the new energy vehicle into AC electrical energy and supply power to the electrical equipment;

[0047] The input end of the AC charging unit is connected to the output end of the AC power supply, the output end of the AC charging unit is connected to the AC charging interface of the new energy vehicle, and the output end of the AC power supply charges the battery of the new energy vehicle through the AC charging unit;

[0048] Among them, when the input end of the DC power taking unit is connected to the DC charging interface of one new energy vehicle, the output end of the AC charging unit is connected to the AC charging interface of another new energy vehicle, and the output end of the DC power taking unit is connected to the input end of the AC charging unit, the one new energy vehicle charges the other new energy vehicle.

[0049] Among them, the DC power extraction unit is used to convert the DC electrical energy stored in the new energy vehicle battery into AC electrical energy. For example, when camping outdoors or during a power outage, the vehicle owner can use the DC power extraction unit to provide power support for other devices.

[0050] It should be noted that when the DC power extraction unit of the charging and discharging device for new energy vehicles is used alone, insert the discharge gun of the DC power extraction unit into the DC charging interface of the new energy vehicle, start the charging and discharging device for new energy vehicles, and the output terminal of the DC power extraction unit of the charging and discharging device for new energy vehicles can output an AC 220V power supply.

[0051] For example, as Figure 1 shown, when power needs to be extracted from new energy vehicle 1, insert the discharge gun in the DC power extraction unit into the DC charging interface of new energy vehicle 1, and start the charging and discharging device. The external connection line 1 of the charging and discharging device can output an AC 220V power supply.

[0052] Among them, the AC charging unit adopts the AC charging method. By connecting to a power socket (i.e., the output terminal of the AC power supply), it provides an AC power supply for the on-board charger of the new energy vehicle, thereby realizing the charging of the battery of the new energy vehicle.

[0053] The AC charging unit has the characteristics of being convenient and practical, charging safely, efficiently and quickly, and being energy-saving and environmentally friendly. It solves the charging problem when there is no condition to install a charging pile or there is no fixed charging facility, and provides an important solution for the emergency charging of new energy vehicles.

[0054] It should be noted that when the AC charging unit of the charging and discharging device for new energy vehicles is used alone, connect the input terminal of the AC charging unit to the output terminal of the AC 220V power supply, insert the charging gun at the output terminal of the AC charging unit into the AC charging interface of the new energy vehicle, and start the charging and discharging device to charge the new energy vehicle.

[0055] For example, as Figure 1 shown, when charging new energy vehicle 2, connect the input terminal (external connection line 2) of the AC charging unit to the AC 220V power supply, insert the output terminal (charging gun) of the AC charging unit into the AC charging interface of new energy vehicle 2, and start the charging and discharging device to charge new energy vehicle 2.

[0056] Among them, the volume of the charging and discharging device is less than 26×17×13 cm 3 , and the weight is less than 4 kg.

[0057] In one embodiment of the present application, the input end of the DC power taking unit can be connected to the DC charging interface of a new energy vehicle, the output end of the AC charging unit can be connected to the AC charging interface of another new energy vehicle, and when the output end of the DC power taking unit is connected to the input end of the AC charging unit, the charging and discharging device is started, and then one new energy vehicle can charge another new energy vehicle.

[0058] It should be noted that when one new energy vehicle charges another new energy vehicle through the charging and discharging device provided by the present utility model, it is necessary to connect the output end of the DC power taking unit connected to one new energy vehicle to the input end of the AC charging unit connected to another new energy vehicle through an external connecting wire to achieve charging from one new energy vehicle to another new energy vehicle.

[0059] As Figure 1 shown, connect the external connecting wire 1 to the external connecting wire 2 and start the charging and discharging device, and then new energy vehicle 1 can charge new energy vehicle 2.

[0060] The present utility model simultaneously has charging function, discharging function and vehicle-to-vehicle charging function, has a wide range of applications, and is small in size and convenient to carry.

[0061] The present utility model provides a charging and discharging device for new energy vehicles, which can extract DC electric energy from the battery of a new energy vehicle through a DC power taking unit and convert it into AC electric energy to supply power to various external electrical devices, and can also charge the battery of a new energy vehicle by using an external AC power source through an AC charging unit, meeting the user's usage requirements in various scenarios and greatly improving the practicability of the charging and discharging device; at the same time, it can also realize the direct charging function between two new energy vehicles by connecting the DC power taking unit connected to one new energy vehicle to the AC charging unit connected to another new energy vehicle, providing a flexible and convenient charging solution for users and improving the convenience and safety of using new energy vehicles. In addition, the design of the present utility model is simple, the device is small in size and easy to carry, and can meet the user's charging needs at any time. Compared with the charging and discharging devices in the prior art, the charging and discharging device provided by the present utility model has significant advantages in terms of function integration and portability, can better adapt to the diverse needs of new energy vehicle users, effectively solves the problem of incomplete functions of existing portable charging and discharging devices, and has a wide range of applications.

[0062] As Figure 2 shown, in one embodiment of the present application, the charging and discharging device further includes a charge-discharge integrated controller;

[0063] The first end of the charging and discharging integrated controller is connected to the output end of the DC power taking unit, and the second end of the charging and discharging integrated controller is connected to the input end of the AC charging unit;

[0064] Wherein, the charging and discharging integrated controller is used to control the connection between the output end of the DC power taking unit and the input end of the AC charging unit.

[0065] In another embodiment of the present application, a charging and discharging integrated controller can be arranged between the output end of the DC power taking unit and the input end of the AC charging unit, and the first end of the charging and discharging integrated controller is connected to the output end of the DC power taking unit, and the second end of the charging and discharging integrated controller is connected to the input end of the AC charging unit, so as to control the connection between the output end of the DC power taking unit and the input end of the AC charging unit through the charging and discharging integrated controller.

[0066] When the input end of the DC power taking unit is connected to the DC charging interface of a new energy vehicle, the output end of the AC charging unit is connected to the AC charging interface of another new energy vehicle, and the charging and discharging integrated controller controls the connection between the output end of the DC power taking unit and the input end of the AC charging unit, charging from one new energy vehicle to another new energy vehicle can be realized.

[0067] Wherein, the charging and discharging integrated controller is used to control the disconnection and closing of the 220V AC power line at the output of the DC power taking unit and the 220V AC power line at the input of the AC charging unit. When vehicle-to-vehicle charging is carried out, the internal of the charging and discharging equipment can control the closing of the 200V input and output lines, without the need for external connection outside the charging and discharging equipment, and the connection is convenient and simple.

[0068] It should be noted that the charging and discharging integrated controller can be set through the interface panel to close the 220V AC power line at the output of the DC inverter and the 220V AC power line at the input of the AC charger, so as to realize charging from one new energy vehicle to another new energy vehicle when the charging and discharging equipment is started.

[0069] In an embodiment of the present application, the DC power taking unit includes a discharge gun, a first relay group, a main control module, an inverter, a first detection circuit and an output socket;

[0070] The input end of the discharge gun is connected to the DC charging interface of the first new energy vehicle, and the output end of the discharge gun is respectively connected to the first detection circuit and the inverter through the first relay group;

[0071] The first detection circuit is respectively connected to the inverter and the input end of the output socket;

[0072] The first relay group, the inverter and the first detection circuit are all controlled by the main control module.

[0073] It should be noted that the discharge gun is a 9-hole DC discharge gun, which is used to connect to the DC charging interface of new energy vehicles.

[0074] The main control module is the main control unit of the charging and discharging device, which is used for communication between the charging and discharging device and the CAN module of the new energy vehicle, controlling the closing and opening of the main power line relay, controlling the working state of the inverter, and controlling each module of the charging and discharging device and the user interface, such as the power-on / off button, indicator light display, Bluetooth communication, etc.

[0075] The inverter is the main functional module of the charging and discharging device, mainly used for converting direct current into alternating current.

[0076] The structure of the inverter can refer to the structure of the inverter disclosed in the Chinese invention patent with the application number CN202211663171.3 and the title "An Inverter Circuit Based on a Three-Phase Full-Bridge Intelligent Power Module".

[0077] The detection circuit is an important module to ensure the safe operation of the device, which is used to detect the voltage and current status in real time. When an abnormality occurs, the device operation is stopped in time through the main control module. When the device is operating normally, the data detected by the detection circuit can be used to display the device operation status in real time through the display screen or the Bluetooth applet.

[0078] The output socket is a standard 5-hole power socket, with one each of 10A and 16A, which is used to connect various common electrical devices.

[0079] In an embodiment of the present application, the first detection circuit includes an input detection circuit and an output detection circuit;

[0080] The input end of the input detection circuit is connected to the output end of the first relay group, the output end of the input detection circuit is connected to the input end of the inverter, the output end of the inverter is connected to the input end of the output detection circuit, and the output end of the output detection circuit is connected to the input end of the output socket;

[0081] Both the input detection circuit and the output detection circuit are controlled by the main control module.

[0082] In an embodiment of the present application, the first relay group includes a first relay, a second relay, and a third relay;

[0083] The input ends of the first relay and the second relay are both connected to the positive pole of the DC voltage output by the discharge gun. The output end of the first relay is connected to the input detection circuit, and the output end of the second relay is connected to the input detection circuit through a pre-charge circuit;

[0084] The input end of the third relay is connected to the negative pole of the DC voltage output by the discharge gun, and the output end of the third relay is connected to the inverter;

[0085] The first relay, the second relay, and the third relay are all controlled by the main control module.

[0086] In an embodiment of the present application, the discharge gun is a DC 9-hole discharge gun.

[0087] In an embodiment of the present application, the AC charging unit includes an input socket, a second detection circuit, a second relay group, a power supply controller, and a charging gun;

[0088] The input end of the input socket is connected to the output end of the AC power supply. The output end of the input socket is divided into two paths. One path is connected to the first input end of the second relay group through the second detection circuit, and the other path is connected to the second input end of the second relay group;

[0089] The first output end and the second output end of the second relay group are respectively connected to the input end of the charging gun, and the output end of the charging gun is connected to the AC charging interface of the second new energy vehicle;

[0090] The second relay group is controlled by the power supply controller.

[0091] It should be noted that the charging gun is a standard 7-hole AC charging gun for connecting to the AC charging port of a new energy vehicle.

[0092] The power supply controller is used to control the state of the relay during the charging process and configure the current during AC charging.

[0093] The detection circuit includes leakage detection and current detection, and plays a circuit protection function.

[0094] The input socket is a 3-hole aviation connector socket and is connected to the AC 220V household electricity through a patch cord.

[0095] In an embodiment of the present application, the second relay group includes a fourth relay and a fifth relay;

[0096] One path of the output end of the input socket is connected to the input end of the fourth relay through the second detection circuit;

[0097] The other path of the output end of the input socket is connected to the input end of the fifth relay;

[0098] The output end of the fourth relay and the output end of the fifth relay are both connected to the input end of the charging gun, and the fourth relay and the fifth relay are both controlled by the power supply controller.

[0099] In an embodiment of the present application, the AC charging unit further includes a leakage protector, and the leakage protector is respectively connected to the fourth relay and the fifth relay.

[0100] In an embodiment of the present application, the charging gun is a 7-hole AC charging gun.

[0101] The above embodiments only represent the specific implementation manners of the present utility model, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A charging and discharging device for a new energy vehicle, characterized in that, It includes a DC power taking unit and an AC charging unit; The input end of the DC power taking unit is connected to the DC charging interface of the new energy vehicle, the output end of the DC power taking unit is connected to the electrical equipment, and the DC power taking unit is used to convert the DC electric energy stored in the battery of the new energy vehicle into AC electric energy and supply power to the electrical equipment; The input end of the AC charging unit is connected to the output end of the AC power supply, the output end of the AC charging unit is connected to the AC charging interface of the new energy vehicle, and the output end of the AC power supply charges the battery of the new energy vehicle through the AC charging unit; Wherein, when the input end of the DC power taking unit is connected to the DC charging interface of a new energy vehicle, the output end of the AC charging unit is connected to the AC charging interface of another new energy vehicle, and the output end of the DC power taking unit is connected to the input end of the AC charging unit, the one new energy vehicle charges the other new energy vehicle.

2. The charging and discharging device for a new energy vehicle according to claim 1, characterized in that, The charging and discharging device further includes a charging and discharging integrated controller; The first end of the charging and discharging integrated controller is connected to the output end of the DC power taking unit, and the second end of the charging and discharging integrated controller is connected to the input end of the AC charging unit; Wherein, the charging and discharging integrated controller is used to control the connection between the output end of the DC power taking unit and the input end of the AC charging unit.

3. The charging and discharging device for a new energy vehicle according to claim 1, characterized in that The DC power taking unit includes a discharge gun, a first relay group, a main control module, an inverter, a first detection circuit and an output socket; The input end of the discharge gun is connected to the DC charging interface of the first new energy vehicle, and the output end of the discharge gun is respectively connected to the first detection circuit and the inverter through the first relay group; The first detection circuit is respectively connected to the inverter and the input end of the output socket; The first relay group, the inverter and the first detection circuit are all controlled by the main control module.

4. The charging and discharging device for a new energy vehicle according to claim 3, characterized in that, The first detection circuit includes an input detection circuit and an output detection circuit; The input end of the input detection circuit is connected to the output end of the first relay group, the output end of the input detection circuit is connected to the input end of the inverter, the output end of the inverter is connected to the input end of the output detection circuit, and the output end of the output detection circuit is connected to the input end of the output socket; The input detection circuit and the output detection circuit are both controlled by the main control module.

5. The charging and discharging device for a new energy vehicle according to claim 4, characterized in that, The first relay group includes a first relay, a second relay and a third relay; The input ends of the first relay and the second relay are both connected to the positive pole of the DC voltage output by the discharge gun, the output end of the first relay is connected to the input detection circuit, and the output end of the second relay is connected to the input detection circuit through a pre-charge circuit; The input end of the third relay is connected to the negative pole of the DC voltage output by the discharge gun, and the output end of the third relay is connected to the inverter; The first relay, the second relay and the third relay are all controlled by the main control module.

6. The charging and discharging device for a new energy vehicle according to claim 3, wherein, The discharge gun is a DC 9-hole discharge gun.

7. The charging and discharging device for a new energy vehicle according to claim 1, characterized in that, The AC charging unit includes an input socket, a second detection circuit, a second relay group, a power supply controller, and a charging gun; The input end of the input socket is connected to the output end of the AC power supply. The output end of the input socket is divided into two paths. One path is connected to the first input end of the second relay group through the second detection circuit, and the other path is connected to the second input end of the second relay group; The first output end and the second output end of the second relay group are respectively connected to the input end of the charging gun. The output end of the charging gun is connected to the AC charging interface of the second new energy vehicle; The second relay group is controlled by the power supply controller.

8. The charging and discharging device for a new energy vehicle according to claim 7, characterized in that, The second relay group includes a fourth relay and a fifth relay; One path of the output end of the input socket is connected to the input end of the fourth relay through the second detection circuit; The other path of the output end of the input socket is connected to the input end of the fifth relay; The output end of the fourth relay and the output end of the fifth relay are both connected to the input end of the charging gun. The fourth relay and the fifth relay are both controlled by the power supply controller.

9. The charging and discharging device for a new energy vehicle according to claim 8, characterized in that, The AC charging unit further includes a leakage protector, and the leakage protector is respectively connected to the fourth relay and the fifth relay.

10. The charging and discharging device for a new energy vehicle according to claim 7, characterized in that, The charging gun is a 7-hole AC charging gun.

Images