Charging and discharging integrated gun, charging and discharging integrated row socket and charging and discharging control method

Abstract

The invention provides a charging and discharging integrated gun, an integrated row socket and a control method, a charging and discharging integrated gun body comprises a first gun body connecting end connected with charging and discharging main body equipment and a second gun body connecting end used for supplying power or discharging, and the first gun body connecting end comprises a first live wire end, a first zero wire end and a first ground wire end; the second gun body connecting end comprises a second live wire end, a second zero wire end, a second ground wire end and a discharging contact end; the charging and discharging integrated gun body further comprises a first switch module, a second switch module, a first resistor, a main control module and a contact point power supply module; the first live wire end is connected to the second live wire end through the first switch module, the first null line end is connected to the second null line end through the second switch module, and the second ground wire end is connected with the second ground wire end; the first control end of the main control module is connected to the control ends of the first switch module and the second switch module; and the main control module realizes charging and discharging control of the charging and discharging main body equipment based on the detection signal value of the detection end.

Description

Technical Field

[0001] The present application relates to the field of charging and discharging and vehicle technology, and in particular to a discharge integrated gun, a charge and discharge integrated socket and a charge and discharge control method. Background Art

[0002] In the field of charging and discharging main equipment such as new energy vehicles, the integrated charging and discharging technology is currently in the stage of development and improvement, with a high technical level and broad application prospects. Taking new energy vehicles as an example, the integrated charging and discharging technology means that new energy vehicles can not only charge from the power grid, but also reversely supply power to external loads or the power grid when the external loads and the power grid need electricity, so that new energy vehicles can play a role similar to a "mobile power bank". The application of this integrated charging and discharging technology is particularly important, especially when outdoor electrical equipment needs electricity or other electric vehicles need to be charged in an emergency and no power module is found. It not only helps to improve the use efficiency of new energy vehicles, but also provides support to the power grid during peak periods of electricity demand and relieves power pressure.

[0003] In the traditional solution, most car discharge sockets are equipped with cables, and this type of electric vehicle discharge socket can only be used for discharging but not for charging. If a new energy electric vehicle is to be charged, it must be charged with another dedicated charging gun, which not only increases the cost of charging and discharging but also makes it inconvenient to carry. There are also some solutions that do not have charging and discharging sockets with cables. The charging and discharging sockets are connected to the communication protocol module through wires, and the communication module and the charging and discharging integrated gun control the on and off of the switch in the charging and discharging integrated gun through a protocol to achieve charging and discharging control. However, this increases costs and adds unnecessary debugging work. Summary of the invention

[0004] The purpose of the present application is to provide a charging and discharging integrated gun, a charging and discharging integrated socket and a charging and discharging control method to solve the problems of high cost or complex debugging of traditional charging and discharging integrated solutions.

[0005] This application is implemented as follows: In a first aspect, a charging and discharging integrated gun is provided, wherein the charging and discharging integrated gun body comprises a first gun body connection end connected to a charging and discharging main device, and a second gun body connection end for power supply or discharge, wherein the first gun body connection end comprises a first live wire end, a first neutral wire end, and a first ground wire end, and the second gun body connection end comprises a second live wire end, a second neutral wire end, a second ground wire end, and a discharge contact end, and the charging and discharging integrated gun body further comprises a first switch module, a second switch module, a first resistor, a main control module, and a contact point power supply module; The first live wire terminal is connected to the second live wire terminal through the first switch module, the first neutral wire terminal is connected to the second neutral wire terminal through the second switch module, and the second ground wire terminal is connected to the second ground wire terminal; The first control end of the main control module is connected to the control ends of the first switch module and the second switch module, the detection end of the main control module is connected to the discharge contact end, and the discharge contact end is connected to the contact point power supply module through the first resistor; The main control module implements the charge and discharge control of the charge and discharge main device based on the detection signal value of the detection end.

[0006] Furthermore, the second live wire terminal, the second neutral wire terminal, the second ground wire terminal and the discharge contact terminal of the second gun body connection end are respectively used to connect with the first live wire terminal, the first neutral wire terminal, the first ground wire terminal and the discharge contact terminal of the charging and discharging integrated socket, and the discharge contact terminal of the charging and discharging integrated socket is connected to the ground wire of the charging and discharging integrated socket; The main control module implements the charge and discharge control of the charge and discharge main device based on the detection signal value of the detection end, including: The main control module compares the detection signal of the detection end with a preset debugging value, and when the comparison result is a first result, closes the first switch module and the second switch module to enable the charging and discharging main device to discharge the charging and discharging integrated socket.

[0007] Furthermore, the charging and discharging integrated socket further comprises a second resistor, and the discharge contact end of the charging and discharging integrated socket is connected to the ground wire of the charging and discharging integrated socket through the second resistor.

[0008] Furthermore, the second live wire terminal, the second neutral wire terminal, and the second ground wire terminal of the second gun body connection end are respectively used for connecting the live wire terminal, the neutral wire terminal, and the ground wire terminal of the power supply interface; The main control module implements the charge and discharge control of the charge and discharge main device based on the detection signal value of the detection end, including: The main control module compares the detection signal of the detection end with a preset debugging value, and when the comparison result is a second result, disconnects the first switch module and the second switch module, so that the power supply interface charges the charging and discharging main device.

[0009] Furthermore, the second gun body connection end further includes a third resistor, and the discharge contact end of the second gun body connection end is connected to the second ground wire end through the third resistor.

[0010] Furthermore, the resistance accuracy of the resistor is less than a preset accuracy, and the preset accuracy includes 1 percent.

[0011] Furthermore, the first gun body connection end further includes a CC detection end and a CP detection end, and the charging and discharging integrated gun further includes a CC circuit module and a CP circuit module; One end of the CC circuit module is connected to the CC detection end, and the other end of the CC circuit module is connected to the ground wire of the charging and discharging integrated gun by switching different resistance values ​​through switches S3 and S4. The CC circuit module is used to cooperate with the CC detection circuit of the charging and discharging main device through the CC detection end to realize CC detection; One end of the CP circuit module is connected to the CP detection end, and the CP circuit module cooperates with the CP detection circuit of the charging and discharging main device through the CP detection end to realize CP detection.

[0012] In a second aspect, a charging and discharging integrated socket is provided for use with the charging and discharging integrated gun body described in any one of the above items; The first live wire terminal, the first neutral wire terminal, the first ground wire terminal and the discharge contact terminal of the charging and discharging integrated socket are respectively used to connect with the second live wire terminal, the second neutral wire terminal, the second ground wire terminal and the discharge contact terminal of the charging and discharging integrated gun body. The first live wire terminal, the first neutral wire terminal and the first ground wire terminal of the charging and discharging integrated gun body are used to connect with the charging and discharging main equipment. The discharge contact terminal of the charging and discharging integrated socket is connected to the ground wire of the charging and discharging integrated socket; After the charging and discharging integrated gun body detects that the charging and discharging integrated gun body is in contact with the discharge contact end of the charging and discharging integrated socket, the charging and discharging main device is controlled to discharge the charging and discharging integrated socket.

[0013] Furthermore, the charging and discharging integrated socket further comprises a third switch module, and the first live wire terminal of the charging and discharging integrated socket is connected to the second live wire terminal of the charging and discharging integrated socket via the third switch module.

[0014] In a third aspect, a charging and discharging method is provided, based on the charging and discharging integrated gun as described in any one of the above items, the method comprising: Comparing the detection signal of the detection end with a preset debugging value; When the comparison result is the first result, the first switch module and the second switch module are closed, so that the charging and discharging main device discharges the charging and discharging integrated socket; When the comparison result is the second result, the first switch module and the second switch module are disconnected so that the power supply interface charges the charging and discharging main device.

[0015] It can be seen that the present application provides a charging and discharging integrated solution, in which the charging and discharging device body is connected to the first gun body connection end of the charging and discharging integrated gun, and the charging and discharging integrated gun can determine whether the charging and discharging contact points of the charging and discharging integrated socket are in contact with the charging and discharging contact points of the charging and discharging integrated gun through the detection signal value of the detection end, thereby determining whether the two are connected, and then determining whether the current charging and discharging integrated gun is discharging or charging, so as to realize the charging and discharging control of the charging and discharging main device. There is no need to process the charging and discharging process with different equipment, and there is no need to charge with another dedicated charging gun when charging; and there is no need to increase unnecessary module costs and debugging work by adding a communication protocol module, and the charging and discharging process is realized only by adding the discharge contact end and the processing of its connection relationship, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a schematic diagram of the circuit principle of a charging and discharging integrated socket provided by an embodiment of the present application; Figure 2 This is a schematic diagram of a physical structure of a charging and discharging integrated power strip provided by an embodiment of the present application; Figure 3 This is a structural schematic diagram of a second gun body connection end of a charging and discharging integrated gun provided by an embodiment of the present application; Figure 4 It is a schematic diagram of an electrical circuit realized by the cooperation of a charging and discharging integrated gun, a charging and discharging integrated socket, and a charging and discharging main device provided by an embodiment of the present application; Figure 5 It is a schematic diagram of the internal circuit principle of a charging and discharging integrated gun provided in an embodiment of the present application. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is 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.

[0019] In order to illustrate the technical solution of the present application, a specific embodiment is provided below for illustration.

[0020] As explained in the background above, most car discharge sockets are equipped with cables, and such electric vehicle discharge sockets can only be used for discharging but not for charging. If a new energy electric vehicle is to be charged, it must be charged with another dedicated charging gun, which not only increases the cost of charging and discharging but also makes it inconvenient to carry. There are also some solutions for charging and discharging sockets without cables, in which the charging and discharging sockets are connected to the communication protocol module through wires, and the communication module and the charging and discharging integrated gun control the on and off of the switch in the charging and discharging integrated gun through a protocol to achieve charging and discharging control. However, this increases costs and adds unnecessary debugging work for the communication protocol module.

[0021] To solve the above problems, the embodiments of the present application provide an integrated charging and discharging solution, including an integrated charging and discharging gun, an integrated charging and discharging socket, and a charging and discharging control method. The integrated charging and discharging solution provided by the embodiments of the present application can achieve integrated charging and discharging. There is no need to use different devices for the charging and discharging process, and there is no need to use another dedicated charging gun for charging; and there is no need to add a communication protocol module, thereby reducing unnecessary communication protocol module costs and debugging work. Below, each embodiment provided in the embodiments of the present application is described in detail.

[0022] An embodiment of the present application provides a charging and discharging integrated gun, wherein the charging and discharging integrated gun body includes a first gun body connection end for connecting to a charging and discharging main device (for example, including but not limited to new energy vehicles, etc.), and a second gun body connection end for power supply or discharge, and the second gun body connection end is used to connect to the charging and discharging integrated socket provided in the embodiment of the present application, or to connect to a power supply interface; the charging and discharging integrated socket can be used to supply power to an external load, such as household appliances, etc.; the power supply interface is an interface of a power supply module for charging the charging and discharging main device, for example, including a household socket, etc.

[0023] The first gun body connection end or the second gun body connection end can be in the form of a plug or a socket, respectively, without specific limitation. For example, the first gun body connection end is in the form of a car end plug, and the second gun body connection end is in the form of a household plug. For example, Figure 3 In some examples, the second gun body connection end may be a structural module that is detachably connected to the charging and discharging integrated gun body, thereby realizing the change of the physical module of the second gun body connection end, so as to be adaptable to different application scenarios, which is not specifically limited.

[0024] To facilitate understanding of the embodiments of the present application, the integrated charging and discharging socket provided in the embodiments of the present application is first introduced.

[0025] like Figure 1 As stated, Figure 1: This is a schematic diagram of the circuit principle of a charging and discharging integrated socket provided in an embodiment of the present application, wherein the charging and discharging integrated socket comprises a first live wire terminal L1, a first neutral wire terminal N1, a first ground wire terminal PE1, a discharge contact terminal PS1, a second live wire terminal L1', a second neutral wire terminal N1' and a second ground wire terminal PE1'; the first live wire terminal L1, the first neutral wire terminal N1, the first ground wire terminal PE1 and the discharge contact terminal PS1 of the charging and discharging integrated socket are respectively used to be connected to the relevant ports of the charging and discharging integrated gun body, and the discharge contact terminal PS1 of the charging and discharging integrated socket is connected to the ground wire of the charging and discharging integrated socket.

[0026] In one embodiment, if Figure 1 The charging and discharging integrated socket further includes a second resistor R2, and the discharge contact terminal PS1 of the charging and discharging integrated socket is connected to the PE ground wire of the charging and discharging integrated socket through the second resistor R2.

[0027] In one embodiment, the charging and discharging integrated socket may further include a third switch module K3, and the first live wire terminal L1 of the charging and discharging integrated socket is connected to the second live wire terminal L1' of the charging and discharging integrated socket through the third switch module K3.

[0028] It should be noted that the above Figure 1 This is a schematic diagram of the circuit principle of the integrated charging and discharging socket. The corresponding physical product form structure can be formed based on the above circuit principle diagram, which is described below: like Figure 2 The invention provides a charging and discharging integrated socket for cooperating with a charging and discharging integrated gun body, wherein the charging and discharging integrated socket comprises a shell, the socket surface of the shell comprises a discharge socket 1 and a power supply socket, and the shell comprises a circuit module; The discharge socket includes a live wire interface 4, a neutral wire interface 2, a ground wire interface 3 and a resilient discharge contact metal point 5, and the power supply socket includes a live wire interface 9, a neutral wire interface 8 and a ground wire interface 7; The circuit module includes a first live terminal L1, a first neutral terminal N1, a first ground terminal PE1, a discharge contact terminal PS1, a second live terminal L1', a second neutral terminal N1' and a second ground terminal PE1', and the discharge contact terminal PS1 is connected to the ground wire of the charging and discharging integrated socket; The first live wire terminal L1, the first neutral wire terminal N1, the first ground wire terminal PE1, and the discharge contact terminal PS1 of the circuit module are respectively connected to the live wire interface 4, the neutral wire interface 2, the ground wire interface 3, and the discharge contact metal point 5 of the discharge socket; The second live wire terminal L1', the second neutral wire terminal N1', and the second ground wire terminal PE1' of the circuit module are respectively connected to the live wire interface 9, the neutral wire interface 8, and the ground wire interface 7 of the power socket.

[0029] In this way, the charging and discharging gun can determine the charging and discharging by whether the discharge contact metal point of the second gun body connection end is connected with the discharge contact metal point on the discharge socket of the charging and discharging integrated socket. When the second gun body connection end of the charging and discharging integrated gun is plugged into the discharge socket of the charging and discharging integrated socket, the two discharge metal contact points are connected and discharge is performed; otherwise, discharge does not occur.

[0030] In one embodiment, the charging and discharging integrated socket includes a POGO PIN spring pin, one end of the POGO PIN spring pin is exposed on the socket surface as the elastic discharge contact metal point, and the other end of the POGO PIN spring pin is located in the shell and connected to the discharge contact end of the circuit module.

[0031] In this embodiment, the spring-loaded discharge contact metal point is realized by using the POGO PIN spring pin.

[0032] In one embodiment, the socket surface of the charging and discharging integrated socket further includes a key switch 6, and the key switch 6 is used to cut off or conduct the connection between the first live wire terminal L1 and the second live wire terminal L1' of the circuit module.

[0033] In one embodiment, the socket surface of the shell also includes one or more power adapter sockets 10, and the second live wire terminal L1' and the second neutral wire terminal N1' of the circuit module are respectively connected to the live wire interface and the neutral wire interface of the power adapter socket 10; and / or the second live wire terminal L1', the second neutral wire terminal N1', and the third ground wire terminal PE1' of the circuit module are respectively connected to the live wire interface, the neutral wire interface, and the ground wire interface of the power adapter socket.

[0034] As an example, see Figure 2 The physical structure of the integrated charging and discharging socket includes a discharge socket 1, a neutral wire N copper sheet 2, a ground wire PE copper sheet 3, a live wire L copper sheet 4, a metal PS contact point 5, a key switch 6, a power supply socket ground wire PE socket 7, a power supply socket neutral wire N socket 8, a power supply socket live wire L socket 9 and a power supply socket extension socket 10.

[0035] Among them, the metal PS contact point 5, the live wire L copper sheet 4, the neutral wire N copper sheet 2, and the ground wire PE copper sheet correspond to the discharge contact terminal PS1, the first live wire terminal L1, the first neutral wire terminal N1, and the first ground wire terminal PE1 on the circuit schematic diagram respectively; the push button switch 6 corresponds to the third switch module K3, and the power supply socket ground wire PE socket 7, the power supply socket neutral wire N socket 8, and the power supply socket live wire L socket 9 correspond to the second ground wire terminal PE1', the second neutral wire terminal N1', and the first live wire terminal L1' respectively. Similarly, other power supply socket extension sockets 10 are connected in the same way to the second ground wire terminal PE1', the second neutral wire terminal N1', and the first live wire terminal L1'. In addition, the structural form of the second gun body connection terminal corresponding to the discharge socket 1 can be as follows: Figure 3 The socket type shown includes a PE socket, a neutral wire N socket, a live wire L socket and a PS metal contact point.

[0036] As an example, the physical structure of the integrated charging and discharging socket is in a flat square shape. The three-pole copper sheets of the sockets L, N, and PE can be fixedly riveted on the socket shell respectively, and the discharge ends of the L and N contact sheets are controlled by the plastic key switch 6, and the closing and disconnection of the power supply socket of the integrated charging and discharging socket are controlled to control the switch path and the open circuit respectively. The metal contact point 5 is fixed next to the L, N, and PE of the discharge socket 1 of the integrated charging and discharging socket, so that when the integrated charging and discharging gun is plugged into the discharge socket 1, the metal contact points of the two are just connected and coupled.

[0037] It should be noted that the above-mentioned physical structure is only an example description here and does not limit the physical structure of the integrated charging and discharging socket provided in the embodiment of the present application. More principles of the above-mentioned setting will be described in conjunction with the integrated charging and discharging gun provided in subsequent embodiments.

[0038] It is also worth noting that the switch and plastic shell of the physical structure of the charging and discharging integrated socket are preferred. The reason for the preference is that the switch is only used to increase the function of controlling the on and off of the key switch, and the on and off effect of the switch can be achieved by plugging and unplugging the discharge plug and the charging plug without the switch. The plastic shell is only used to fix the metal sheet with insulating material, and it can be replaced with other insulating materials if necessary, such as wood or ceramic, etc., without specific limitation.

[0039] The shapes and structures of the components of the physical structure of these integrated charging and discharging sockets are diverse. In order to more intuitively illustrate the application examples of this technical solution, the actual application includes but is not limited to Figure 2 The structural diagram is shown, but the principle is the same.

[0040] like Figure 4 and 5 As shown, Figure 4A schematic diagram of a circuit principle when a charging and discharging integrated gun, a charging and discharging main device, and a charging and discharging integrated socket are matched with each other in an embodiment of the present application. Figure 5 A schematic diagram of the internal circuit of a charging and discharging integrated gun provided in an embodiment of the present application, wherein the charging and discharging integrated gun body includes a first gun body connection end connected to a charging and discharging main device (for example, including but not limited to new energy vehicles, etc.), and a second gun body connection end for power supply or discharge, the second gun body connection end is used to connect to the charging and discharging integrated socket provided in the embodiment of the present application, or to a power supply interface such as a household power supply interface; the charging and discharging integrated socket is used to supply power to an external load, such as household appliances; the power supply interface is an interface of a power supply module for charging the charging and discharging main device, including a household socket, etc., and the second gun body connection end includes a 10A household three-plug or a 16A household three-plug specification to adapt to different charging and discharging requirements, which are not specifically limited.

[0041] The first gun body connection end includes a first live wire terminal L2, a first neutral wire terminal N2, and a first ground wire terminal PE2; the second gun body connection end includes a second live wire terminal L2', a second neutral wire terminal N2', a second ground wire terminal PE2' and a discharge contact terminal PS2; the charging and discharging integrated gun body also includes a first switch module K1, a second switch module K2, a first resistor R1, a control circuit, a main control module M and a contact point power supply module VCC1; the control circuit is a circuit for realizing charging and discharging of the charging and discharging integrated gun body, including a switching control circuit of the first switch module K1, a second switch module K2 and other detection circuits, etc. The main control module M can be, for example, an MCU chip, etc., and the contact point power supply module VCC1 can be 3.3V or other example situations, which are not specifically limited.

[0042] In the charging and discharging integrated gun body, the first live wire terminal L2 of the first gun body connection end is connected to the second live wire terminal L2' through the first switch module K1, the first neutral wire terminal N2 is connected to the second neutral wire terminal N2' through the second switch module K2, and the second ground wire terminal PE2 is connected to the second ground wire terminal PE2'; In the charging and discharging integrated gun body, the first control end of the main control module M is connected to the control ends of the first switch module K1 and the second switch module K2, and the main control module M can control the on and off of the first switch module K1 and the second switch module K2; the detection end of the main control module M is connected to the discharge contact end PS2, and the discharge contact end PS2 is connected to the contact point power supply module VCC1 through the first resistor R1; The main control module M realizes the charge and discharge control of the charge and discharge main device based on the detection signal value of the detection end.

[0043] It can be seen that in this embodiment, a charging and discharging integrated gun is provided, and the charging and discharging device body is connected to the first gun body connection end of the charging and discharging integrated gun. The charging and discharging integrated gun can determine whether the discharge contact terminal PS2 of the charging and discharging integrated socket is in contact with the discharge contact terminal PS1 of the charging and discharging integrated gun through the detection signal value of the detection end, thereby determining whether the two are connected, and then determining whether the current charging and discharging integrated gun is in a discharging or charging state, so as to realize the charging and discharging control of the charging and discharging main device.

[0044] In this embodiment, through the integrated charging and discharging gun provided in the embodiment of the present application, there is no need to use different equipment to handle the charging and discharging process, and there is no need to use another dedicated charging gun for charging; and there is no need to add a communication protocol module to increase unnecessary module costs and debugging work. The charging and discharging process is achieved by simply adding the discharge contact terminal and the processing of its connection relationship, which is simple and convenient.

[0045] In one embodiment, the second live wire terminal L2', the second neutral wire terminal N2', the second ground wire terminal PE2' and the discharge contact terminal PS2 of the charging and discharging integrated gun are respectively used to connect with the first live wire terminal L1, the first neutral wire terminal N1, the first ground wire PE1 and the discharge contact terminal PS1 of the charging and discharging integrated socket, and the discharge contact terminal PS1 of the charging and discharging integrated socket is connected to the ground wire of the charging and discharging integrated socket; The main control module M realizes the charge and discharge control of the charge and discharge main device based on the detection signal value of the detection end, including: The main control module M compares the detection signal of the detection end with the preset debugging value. When the comparison result is the first result, it indicates that the PS point of the charging and discharging integrated socket and the charging and discharging integrated gun are coupled, and the first switch module K1 and the second switch module K2 are closed to enable the charging and discharging main device to discharge the charging and discharging integrated socket. In this way, the charging and discharging integrated socket can be discharged to the outside. In this process, the above-mentioned discharge process can be further controlled by the key switch 6 of the charging and discharging integrated socket to achieve the purpose of discharging the charging and discharging main device to the outside.

[0046] In one embodiment, the second live wire terminal L2', the second neutral wire terminal N2', and the second ground wire terminal PE2' of the second gun body connection end are respectively used for connecting the live wire terminal, the neutral wire terminal, and the ground wire terminal of the power supply interface, and the power supply interface includes a household interface; The main control module M realizes the charge and discharge control of the charge and discharge main device based on the detection signal value of the detection end, including: The main control module M compares the detection signal of the detection end with the preset debugging value. When the comparison result is the second result, it indicates that the PS points of the charging and discharging integrated socket and the charging and discharging integrated gun are not coupled, and the first switch module K1 and the second switch module K2 are disconnected so that the power supply interface can charge the charging and discharging main device.

[0047] like Figure 5 As shown, there is a resistor R1 in the charging and discharging integrated gun, one end of which is connected to the discharge contact terminal PS2, and the other end is connected to the contact point power module (for example, 3.3V) on the charging and discharging integrated gun, and one end of the resistor R2 on the discharge socket of the charging and discharging integrated row socket is connected to the PS2 end, and the other end is connected to the PE grounding wire. When in use, the first gun body connection end of the charging and discharging integrated gun is inserted into the charging and discharging main device, and the second gun body connection end is inserted into the discharge socket 1 of the charging and discharging integrated row socket. The L, N, and PE metal sheets of the second gun body connection end of the charging and discharging integrated gun are respectively in contact with the L, N, and PE three-terminal metal sheets on the discharge socket 1 of the charging and discharging integrated row socket. Therefore, the PS metal contact point on the charging and discharging integrated gun is connected and coupled with the PS metal contact point of the discharge socket 1. The main control module M can detect the detection signal value through the PS2 end to determine whether it is correct, so as to control charging and discharging. Specifically, when the second gun body connection end of the charging and discharging integrated gun is connected to the discharge socket 1 of the charging and discharging integrated row socket, the resistor R1 on the charging and discharging integrated gun and the resistor R2 on the socket are connected through the PS metal contact point and the PE grounding wire end to form a loop. The main control module M compares the detection signal value detected by the analog-to-digital conversion port with the pre-debugging value to determine whether it meets the standard, thereby controlling the closing and opening of the first switch module K1 and the second switch module K2 on the charging and discharging integrated gun. At this time, the user can connect the external load through the power supply interface of the charging and discharging integrated socket to use the power of the charging and discharging main device. At the end of use, the user can disconnect the second gun body connection end of the charging and discharging integrated gun by pressing the key switch 6 or pulling out the charging and discharging integrated gun to stop the power supply of the charging and discharging main device. When the second gun body connection end of the charging and discharging integrated gun is inserted into a power supply interface such as a household socket, the above-mentioned discharge mode will not be triggered because the household socket does not have a PS end. In addition, if the two charging and discharging sockets are the same, the analog-to-digital conversion interface (ADC) of the main control MCU module can determine whether it is used as a charging socket or a discharging socket by detecting the voltage value of the resistor on the charging and discharging socket.

[0048] The configuration of the discharge socket of the integrated charging and discharging power strip socket can be configured according to different application scenario requirements, such as the specific value of the resistor R2 or whether the switch module K3 can be configured, etc., without specific limitation.

[0049] In one embodiment, the second gun body connection end may further include a third resistor R3, and the discharge contact end PS2 of the second gun body connection end is connected to the second ground terminal through the third resistor R3, so that the main control module M can effectively detect whether the discharge contact end of the charging and discharging integrated gun is connected to the charging and discharging integrated socket.

[0050] In one embodiment, the resistance accuracy of the above-mentioned resistors is less than a preset accuracy, and the preset accuracy includes 1%. For example, the accuracy of the resistors R2 and R3 is 1%, thereby ensuring the accuracy of charge and discharge control.

[0051] In one embodiment, the first gun body connection end further includes a CC detection end and a CP detection end, and the control circuit part of the charging and discharging integrated gun includes a CC circuit module and a CP circuit module; one end of the CC circuit module is connected to the CC detection end, and the other end of the CC circuit module is connected to the ground wire of the charging and discharging integrated gun, and the CC circuit module is used to cooperate with the CC detection circuit of the charging and discharging main device through the CC detection end to realize CC detection; one end of the CP circuit module is connected to the CP detection end, and the CP circuit module cooperates with the CP detection circuit of the charging and discharging main device through the CP detection end to realize CP detection.

[0052] In this embodiment, the first gun body connection end of the charging and discharging integrated gun is also provided with a CC detection end and a CP detection end. The control circuit in the charging and discharging integrated gun body includes a CC circuit module and a CP circuit module, which are used to cooperate with the charging and discharging main equipment to realize CC detection and CP detection of the charging and discharging process, thereby ensuring the safety and compliance of the charging and discharging process of the charging and discharging integrated gun.

[0053] like Figure 4 As shown, as an example, the CC circuit module of the charging and discharging integrated gun includes a resistor R4, a resistor R5, a resistor RC1, a resistor RC2, and a third switch S3 and a fourth switch S4, and the connection relationship is as follows Figure 4 The control ends of the third switch S3 and the fourth switch S4 are connected to the main control module M, and the main control module M controls the switches.

[0054] like Figure 4As shown, as an example, the CP circuit module of the charging and discharging integrated gun includes a power supply control module, a diode and a fifth switch S5. The CP end of the first gun body connection end of the charging and discharging integrated gun is connected to one end of the fifth switch S5, and the other end of the fifth switch S5 is suspended or switched to be connected to the cathode of the diode, and the anode of the diode is connected to the power supply control module. The power supply control module is connected to the main control module, and the fifth switch S5 is connected to the main control module M. Exemplarily, the power supply control module is used to provide a 12V voltage with a PWM duty cycle corresponding to the CP signal.

[0055] In combination with the above embodiments, Figure 4 Taking the circuit as an example, and combining the charging and discharging main device as an electric vehicle as an example, the complete charging and discharging control process is further explained, including: Car discharge status: charging and discharging integrated socket with charging and discharging integrated gun, continue to refer to Figure 4 As shown: Discharge state: The charging and discharging gun is in the discharge state by default. At this time, switches S3 and S4 are both on the left contact point, and S5 is in the suspended state by default. Figure 4 As shown, when the first gun body connection end (such as the vehicle-end plug) of the charging and discharging integrated gun is connected to the charging port of the car, the car MCU will detect the CC resistance. If it meets the standard, the vehicle MCU closes S6, and the car's detection circuit 12 outputs 12V for CP detection. If both are qualified, the car's on-board charger will discharge the charging and discharging integrated gun to activate the auxiliary power module VCC2 of the charging and discharging integrated gun to power the main control module M of the charging and discharging integrated gun. The main control module M starts working. The main control module M detects the PS line, that is, detects the PS2 end to identify the resistance R2 of the charging and discharging integrated socket, and the main control module M closes K1 and K2, so that the car discharges to the charging and discharging integrated socket, and the charging and discharging integrated socket can supply power to the outside.

[0056] Vehicle charging status: the integrated charging and discharging socket is not matched with the integrated charging and discharging gun. When the second gun body connection end (such as three-plug) of the integrated charging and discharging gun is connected to the household electricity 220V, the auxiliary power module VCC2 of the integrated charging and discharging gun is activated to power the main control module of the integrated charging and discharging gun. The main control module M identifies the resistance specification of the household three-plug (such as 16A three-plug or 10A three-plug). The main control module M controls S5 to close to the negative end of the diode, adjusts the corresponding CP signal duty cycle (for example, 16A duty cycle is 26.7%, 10A duty cycle is 16.7%), and adjusts the S3 and S4 contacts to the right. The first gun body connection end (vehicle end plug) of the integrated charging and discharging gun is connected to the car charging port. After the car detects the CC resistance, it controls S6 to close to the car charging circuit, so that the household electricity can charge the car through the integrated charging and discharging gun and the car charging circuit.

[0057] In one embodiment, a charging and discharging method is provided, which is implemented based on the charging and discharging integrated gun, and the method includes: Comparing the detection signal of the detection end with a preset debugging value; When the comparison result is the first result, the first switch module and the second switch module are closed, so that the charging and discharging main device discharges the charging and discharging integrated socket; When the comparison result is the second result, the first switch module and the second switch module are disconnected so that the power supply interface charges the charging and discharging main device.

[0058] Regarding the content of this method, please refer to the description of the charging and discharging process in the aforementioned embodiment, which will not be repeated here.

[0059] It can be seen that the present application is implemented by connecting or adding a resistor between the discharge contact terminal PS1 of the charge-discharge integrated socket and the ground wire PE, and the second gun body connection terminal of the charge-discharge integrated gun also has a PS contact terminal, that is, the discharge contact terminal PS2. When the second gun body connection terminal of the charge-discharge integrated gun is not in use, the charge-discharge integrated gun main control module detects the discharge contact terminal PS2, and the discharge contact terminal PS2 is connected to the voltage of the contact point power module through a resistor R1. At this time, the pin of the charge-discharge integrated gun main control module detects the voltage of the contact point power module. Therefore, the second gun body connection terminal of the charge-discharge integrated gun is not in use. There will be no voltage output at the gun body connection end. When the second gun body connection end of the charging and discharging integrated gun is inserted into the charging and discharging integrated socket, the L, N, PE and PS ports are coupled and connected respectively. At this time, the voltage of the contact point power module on the charging and discharging integrated gun and the resistance on the charging and discharging integrated socket form a loop through the PE terminal. After the main control module of the charging and discharging integrated gun detects the correct value, it controls K1\K2 to close and supply power to the discharge socket of the charging and discharging integrated socket. The discharge socket of the charging and discharging integrated socket is connected to the power socket through the button switch 6. At this time, the user can use the power module through the power socket.

[0060] When not in use, the second gun body connection end of the charging and discharging integrated gun is pulled out and returns to the initial state. This allows the charging and discharging integrated gun to be used safely and conveniently, reduces costs and reduces unnecessary debugging work. Users can use the charging and discharging integrated gun to power electrical equipment outdoors, or charge other electric vehicles through a socket strip, meeting the requirements for safe electricity use and complying with preset charging and discharging standards, such as the relevant requirements of GB / T 18487-2023.

[0061] It is also worth noting that the integrated charging and discharging socket and integrated charging and discharging gun provided by this application can promote the integrated charging and discharging gun of new energy electric vehicles to be widely used in the field of electric vehicle charging and discharging. It integrates charging and discharging, is easy to carry, reduces costs, is easy to debug and produce, has broad development prospects, and helps enterprises reduce costs and increase profits. The current development status of the integrated charging and discharging socket is reflected in the continuous strengthening of charging infrastructure construction and technological progress to meet the rapidly growing needs of the new energy vehicle market, and can provide strong support for the popularization and development of new energy vehicles.

[0062] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A charging and discharging integrated gun, characterized in that: The charging and discharging integrated gun body includes a first gun body connection end connected to the charging and discharging main device, and a second gun body connection end for power supply or discharge, the first gun body connection end includes a first live wire end, a first neutral wire end, and a first ground wire end, the second gun body connection end includes a second live wire end, a second neutral wire end, a second ground wire end, and a discharge contact end, and the charging and discharging integrated gun body also includes a first switch module, a second switch module, a first resistor, a main control module, and a contact point power supply module; The first live wire terminal is connected to the second live wire terminal through the first switch module, the first neutral wire terminal is connected to the second neutral wire terminal through the second switch module, and the second ground wire terminal is connected to the second ground wire terminal; The first control end of the main control module is connected to the control ends of the first switch module and the second switch module, the detection end of the main control module is connected to the discharge contact end, and the discharge contact end is connected to the contact point power supply module through the first resistor; The main control module implements the charge and discharge control of the charge and discharge main device based on the detection signal value of the detection end.

2. The charging and discharging integrated gun according to claim 1, characterized in that: The second live wire terminal, the second neutral wire terminal, the second ground wire terminal and the discharge contact terminal of the second gun body connection end are respectively used to connect with the first live wire terminal, the first neutral wire terminal, the first ground wire terminal and the discharge contact terminal of the charging and discharging integrated socket, and the discharge contact terminal of the charging and discharging integrated socket is connected to the ground wire of the charging and discharging integrated socket; The main control module implements the charge and discharge control of the charge and discharge main device based on the detection signal value of the detection end, including: The main control module compares the detection signal of the detection end with a preset debugging value, and when the comparison result is a first result, closes the first switch module and the second switch module to enable the charging and discharging main device to discharge the charging and discharging integrated socket.

3. The charging and discharging integrated gun according to claim 2, characterized in that: The charging and discharging integrated socket further includes a second resistor, and the discharge contact end of the charging and discharging integrated socket is connected to the ground wire of the charging and discharging integrated socket through the second resistor.

4. The charging and discharging integrated gun according to claim 1, characterized in that: The second live wire terminal, the second neutral wire terminal, and the second ground wire terminal of the second gun body connection end are respectively used for connecting the live wire terminal, the neutral wire terminal, and the ground wire terminal of the power supply interface; The main control module implements the charge and discharge control of the charge and discharge main device based on the detection signal value of the detection end, including: The main control module compares the detection signal of the detection end with a preset debugging value, and when the comparison result is a second result, disconnects the first switch module and the second switch module, so that the power supply interface charges the charging and discharging main device.

5. The charging and discharging integrated gun according to any one of claims 1 to 4, characterized in that: The second gun body connection end further includes a third resistor, and the discharge contact end of the second gun body connection end is connected to the second ground wire end through the third resistor.

6. The charging and discharging integrated gun according to any one of claims 1 to 4, characterized in that: The resistance accuracy of the resistor is less than a preset accuracy, and the preset accuracy includes 1 percent.

7. The charging and discharging integrated gun according to any one of claims 1 to 4, characterized in that: The first gun body connection end further includes a CC detection end and a CP detection end, and the charging and discharging integrated gun further includes a CC circuit module and a CP circuit module; One end of the CC circuit module is connected to the CC detection end, and the other end of the CC circuit module is connected to the ground wire of the charging and discharging integrated gun. The CC circuit module is used to cooperate with the CC detection circuit of the charging and discharging main device through the CC detection end to realize CC detection; One end of the CP circuit module is connected to the CP detection end, and the CP circuit module cooperates with the CP detection circuit of the charging and discharging main device through the CP detection end to realize CP detection.

8. A charging and discharging integrated socket for use with the charging and discharging integrated gun body as claimed in any one of claims 1 to 7, characterized in that: The first live wire terminal, the first neutral wire terminal, the first ground wire terminal and the discharge contact terminal of the charging and discharging integrated socket are respectively used to connect with the second live wire terminal, the second neutral wire terminal, the second ground wire terminal and the discharge contact terminal of the charging and discharging integrated gun body. The first live wire terminal, the first neutral wire terminal and the first ground wire terminal of the charging and discharging integrated gun body are used to connect with the charging and discharging main equipment. The discharge contact terminal of the charging and discharging integrated socket is connected to the ground wire of the charging and discharging integrated socket; After the charging and discharging integrated gun body detects that the charging and discharging integrated gun body is in contact with the discharge contact end of the charging and discharging integrated socket, the charging and discharging main device is controlled to discharge the charging and discharging integrated socket.

9. The charging and discharging integrated gun body as claimed in claim 8, characterized in that: The charging and discharging integrated socket further includes a third switch module, and the first live wire end of the charging and discharging integrated socket is connected to the second live wire end of the charging and discharging integrated socket via the third switch module.

10. A charging and discharging method, based on the charging and discharging integrated gun according to any one of claims 1 to 7, characterized in that: The method comprises: Comparing the detection signal of the detection end with a preset debugging value; When the comparison result is the first result, the first switch module and the second switch module are closed, so that the charging and discharging main device discharges the charging and discharging integrated socket; When the comparison result is the second result, the first switch module and the second switch module are disconnected so that the power supply interface charges the charging and discharging main device.

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