Charging and discharging device

Abstract

The utility model discloses a kind of charging and discharging devices, it is related to charging and discharging technical field, the charging and discharging device includes row plug, charging and discharging gun and control module, and the row plug is equipped with discharge socket;One end of the charging and discharging gun is equipped with gun head, and the gun head is used to access vehicle end, and the other end of the charging and discharging gun is equipped with plug, and the plug is used to access power supply end or the discharge socket;The control module is located in the charging and discharging gun, and the control module is used to detect the power supply end of the charging and discharging gun and the plug insertion object, and according to the power supply end of the charging and discharging gun and the plug insertion object control the working mode of the charging and discharging device.The utility model provides technical scheme to make the same device have charging function, and also have discharging function.

Description

Technical Field

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

[0002] With the promotion and popularization of new energy, there are more and more vehicles on the market that use electricity as an energy source. As automotive technology becomes more and more mature, while charging technology meets people's daily needs, discharging technology has emerged, enabling new energy vehicles to act as mobile power stations to meet the electricity needs outside the vehicle.

[0003] However, existing charging guns and discharging guns are two completely different products, which means that users need to carry two products with them in order to meet their charging and discharging needs. This not only takes up space in the car, but is also inconvenient to use. Utility Model Content

[0004] The main purpose of this utility model is to propose a charging and discharging device that enables the same device to have both charging and discharging functions.

[0005] To achieve the above objectives, this utility model proposes a charging and discharging device, which includes:

[0006] The power strip is equipped with a discharge socket;

[0007] A charging and discharging gun, one end of which is provided with a gun head for connecting to a vehicle, and the other end of which is provided with a plug for connecting to a power source or a discharge socket;

[0008] A control module is provided on the charging and discharging gun. The control module is used to detect the power supply terminal of the charging and discharging gun and the insertion object of the plug, and to control the working mode of the charging and discharging device according to the power supply terminal of the charging and discharging gun and the insertion object of the plug.

[0009] In one embodiment, the control module is configured to control the charging and discharging device to enter a discharging mode when it detects that the vehicle is powered and the plug is inserted into the discharge socket; the control module is also configured to control the charging and discharging device to enter a charging mode when it detects that the power supply is powered.

[0010] In one embodiment, the plug has a first contact, the power strip has a second contact, and the control module is used to detect whether the first contact is connected to the second contact in order to determine whether the plug is inserted into the discharge socket.

[0011] In one embodiment, the first contact is connected to the ground wire of the charging / discharging gun, the second contact is connected to the ground wire of the power strip, and an identification resistor is connected between the second contact and the ground wire of the power strip. The control module includes an identification unit, which is used to identify the identification resistor to determine whether the first contact is connected to the second contact.

[0012] In one embodiment, the control module further includes a voltage detection unit, which is used to detect voltage to determine the power supply terminal of the charging and discharging gun.

[0013] In one embodiment, the control module further includes a switching unit disposed on the charging / discharging gun, the switching unit being used to disconnect the circuit of the charging / discharging gun when the charging / discharging device is not in the discharging mode or charging mode.

[0014] In one embodiment, the charging and discharging gun is provided with an overload protection unit, which is used to disconnect the circuit of the charging and discharging gun when the charging and discharging gun is overloaded.

[0015] In one embodiment, the power strip is further provided with a plurality of power sockets, which are spaced apart on the power strip and are used to connect electrical devices.

[0016] In one embodiment, the discharge socket is provided with a receiving groove for inserting the plug into the discharge socket. The receiving groove has a limiting groove on its side wall and a limiting protrusion on the periphery of the plug for limiting engagement with the limiting groove.

[0017] In one embodiment, the side wall of the receiving groove is further provided with a grounding spring, the grounding spring is connected to the ground wire of the plug, and a grounding metal plate is provided on the periphery of the plug, the grounding metal plate is connected to the ground wire of the charging and discharging gun, and the grounding metal plate is used for the grounding spring to support it.

[0018] In this invention, the power strip can connect to external electrical equipment and includes a discharge socket. One end of the charging / discharging gun can be connected to the vehicle, while the other end can be connected to the power supply or the power strip's discharge socket. A control module is built into the charging / discharging gun, detecting the power supply and plug insertion, and correspondingly controlling the charging / discharging device's operating mode. This allows the device to intelligently enter either charging or discharging mode. This integrated charging and discharging functionality allows users to carry only one device in their vehicle, saving space and improving usability. Furthermore, this charging / discharging device eliminates the need for any switching operations; simply connecting for charging or discharging initiates the corresponding operation, significantly enhancing ease of use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 An exploded view of the charging and discharging device in one embodiment of this utility model;

[0021] Figure 2 A schematic diagram of the plug and socket in one embodiment of this utility model;

[0022] Figure 3 A schematic diagram of the circuit structure in one embodiment of this utility model.

[0023] Explanation of icon numbers:

[0024] 100. Charging / discharging device; 1. Charging / discharging gun; 11. Gun head; 12. Plug; 121. First contact; 122. Limiting protrusion; 123. Grounding metal piece; 2. Power strip; 21. Discharge socket; 211. Second contact; 212. Receiving groove; 213. Limiting groove; 214. Grounding spring; 22. Power socket;

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] Please combine Figure 1 and Figure 2 As shown, this utility model proposes a charging and discharging device 100, which includes a power strip 2, a charging and discharging gun 1, and a control module. The power strip 2 is provided with a discharging socket 21. One end of the charging and discharging gun 1 is provided with a gun head 11, which is used to connect to a vehicle. The other end of the charging and discharging gun 1 is provided with a plug 12, which is used to connect to a power supply or the discharging socket 21. The control module is located on the charging and discharging gun 1. The control module is used to detect the power supply end of the charging and discharging gun 1 and the insertion object of the plug 12, and control the working mode of the charging and discharging device 100 according to the power supply end of the charging and discharging gun 1 and the insertion object of the plug 12.

[0030] In this embodiment, the power strip 2 can connect to external electrical equipment and is equipped with a discharge socket 21. The nozzle 11 at one end of the charging / discharging gun 1 can be connected to the vehicle, while the plug 12 at the other end can be connected to the power supply or the discharge socket 21 of the power strip 2. The nozzle 11 and plug 12 are electrically connected via a connecting wire. The control module is built into the charging / discharging gun 1 and can detect the power supply end of the charging / discharging gun 1 and the insertion of the plug 12, and accordingly control the working mode of the charging / discharging device 100, enabling the charging / discharging device 100 to intelligently enter a working state, i.e., charging mode or discharging mode. Thus, the charging / discharging device 100 integrates charging and discharging functions into one unit. Users only need to carry one device with them to achieve charging and discharging, saving vehicle space and facilitating user use. Furthermore, with this charging / discharging device 100, users do not need to perform any mode switching operations; simply connecting for charging or discharging allows the charging / discharging device 100 to enter the corresponding working mode, greatly improving ease of use.

[0031] Specifically, when charging a vehicle using this charging and discharging device 100, the nozzle 11 of the charging and discharging gun 1 is inserted into the vehicle's interface, and the plug 12 of the charging and discharging gun 1 is inserted into the external power supply interface, enabling the external power supply to charge the vehicle's battery. The external power supply is typically a mains circuit, and the plug 12 is connected to the mains by engaging a socket. When discharging using this charging and discharging device 100, the nozzle 11 of the charging and discharging gun 1 is inserted into the vehicle's interface, and the plug 12 of the charging and discharging gun 1 is inserted into the discharge socket 21 of the power strip 2, discharging the electrical device through the power strip 2. Specifically, as... Figure 3 As shown, the charging gun has a live wire L1, a neutral wire N1, and a ground wire PE1. The two ends of the live wire L1, neutral wire N1, and ground wire PE1 are respectively located at the gun head 11 and the plug 12. The power strip 2 has a live wire L2, a neutral wire N2, and a ground wire PE2. The two ends of the live wire L1, neutral wire N1, and ground wire PE1 are respectively located at the discharge socket 21 and the power socket 22 of the power strip 2. When the plug 12 is inserted into the discharge socket 21, the live wire L1 connects to the live wire L2, the neutral wire N2 connects to the neutral wire N1, and the ground wire PE1 connects to the ground wire PE2. The control module can be integrated into a control board, which is located inside the gun head 11 and electrically connected to the gun head 11 and the plug 12.

[0032] Understandably, the charging and discharging device 100 has two operating modes: charging mode and discharging mode. In charging mode, current flows from the external power source to the vehicle battery, and the charging and discharging gun 1 sends a PWM signal to the vehicle. The vehicle's battery management system controls the input power according to the battery status and controls the bidirectional on-board charger to rectify the AC power into DC power to charge the battery. In discharging mode, current flows from the vehicle to the electrical equipment connected to the discharge socket 21, and the charging and discharging gun 1 sends a discharge signal to the vehicle. The bidirectional on-board charger rectifies the DC power from the vehicle battery into AC power, and the vehicle controls the corresponding output power to supply power to the external electrical equipment.

[0033] In an embodiment of this utility model, the control module is configured to control the charging and discharging device 100 to enter the discharging mode when it detects that the vehicle is powered and the plug 12 is inserted into the discharge socket 21; the control module is also configured to control the charging and discharging device 100 to enter the charging mode when it detects that the power supply is powered.

[0034] In this embodiment, the charging / discharging device 100 only enters the discharging mode when the control module detects power supply from the vehicle and the plug 12 is inserted into the discharging socket 21. This avoids the control module controlling the charging / discharging device 100 to enter the discharging mode only when it detects power supply from the vehicle, which would cause the plug 12 to be energized before being inserted into the discharging socket 21, potentially leading to a hazard. It also prevents the user from accidentally connecting the plug 12 to the power source, resulting in two opposing currents that could damage the charging / discharging device 100 or even endanger the user's safety. Conversely, when the control module detects power supply from the power source, it controls the charging / discharging device 100 to enter the charging mode.

[0035] Understandably, the charging head 11 is always used to connect to the vehicle. The control module can detect the power supply after confirming that the charging head 11 is connected to the vehicle. After the charging head 11 is connected to the vehicle, the control module can determine the power supply of the charging gun by detecting whether it is powered by a power source. When the control module detects power supply, it can determine that the power supply of the charging gun is an external power source. When the control module detects no power supply and detects that the plug 12 is inserted into the discharge socket 21, it can determine that the power supply of the charging gun is the vehicle. Therefore, when the charging head 11 is connected to the vehicle, the control module does not detect power supply, but detects that the plug 12 is inserted into the discharge socket 21, it can control the charging and discharging device 100 to enter the discharge mode. Conversely, when the charging head 11 is connected to the vehicle and the control module detects power supply, it can control the charging and discharging device 100 to enter the charging mode. This avoids the charging head 11 becoming energized before it is connected to the vehicle after the plug 12 is connected to the power source.

[0036] Optionally, the connection status between the gun head 11 and the vehicle end can be determined based on whether communication has been established between the gun head 11 and the vehicle end. When the gun head 11 successfully communicates with the vehicle end, the gun head 11 and the vehicle end are connected.

[0037] Alternatively, when the control module detects power supply from the power source and that plug 12 is not connected to the discharge socket 21, it controls the charging / discharging device 100 to enter charging mode. This prevents user misoperation, such as connecting the gun head 11 to the vehicle, inserting plug 12 into the discharge socket 21, and connecting plug 12 to the power source via connector 2. This could lead to a malfunction or misjudgment of the control module, causing the charging device 100 to discharge while simultaneously entering charging mode, resulting in damage to the charging / discharging device 100 or even endangering the user's personal safety.

[0038] In embodiments of this utility model, such as Figures 1 to 3 As shown, the plug 12 is provided with a first contact 121, and the power strip 2 is provided with a second contact 211. The control module is used to detect whether the first contact 121 is connected to the second contact 211 in order to determine whether the plug 12 is inserted into the discharge socket 21.

[0039] In this embodiment, when the plug 12 is plugged into the discharge socket 21 of the power strip 2, the first contact 121 of the plug 12 successfully matches the second contact 211 of the power strip 2. The control module determines that the plug 12 has been inserted into the discharge socket 21, and then controls the charging and discharging device 100 to enter the discharge mode in accordance with the power supply status of the charging and discharging gun 1.

[0040] Optionally, when the first contact 121 on the plug 12 does not match the second contact 211, the control module determines that the plug 12 is not inserted into the discharge socket 21, and controls the charging and discharging device 100 to enter the charging mode in conjunction with the power supply status of the charging and discharging gun.

[0041] In actual implementation, the first contact 121 and the second contact 211 can be matched by a digital communication chip, by an identification resistor R1, or by a Hall sensor and an induction magnet.

[0042] Optionally, the first contact 121 and the second contact 211 can be configured as resilient contacts to ensure stability when they come into contact.

[0043] In embodiments of this utility model, such as Figures 1 to 3 As shown, the first contact 121 is connected to the ground wire of the charging and discharging gun 1, and the second contact 211 is connected to the ground wire PE2 of the power strip 2. An identification resistor R1 is connected between the second contact 211 and the ground wire PE2 of the power strip 2. The control module includes an identification unit, which is used to identify the identification resistor R1 to determine whether the first contact 121 is connected to the second contact 211.

[0044] In this embodiment, when the first contact 121 and the second contact 211 are connected, the identification resistor R1 located between the second contact 211 and the ground wire of the power strip 2 is also connected to the ground wire PE2 of the charging and discharging gun 1. At this time, the identification unit located in the charging and discharging gun 1 can identify the identification resistor R1 and thus determine that the plug 12 has been plugged into the discharge socket 21. Conversely, if the identification resistor R1 is not detected, it is determined that the plug 12 is not inserted into the discharge socket 21.

[0045] In actual implementation, the first contact 121 is a branch of the ground wire of the charging / discharging gun 1, and the second contact 211 is also a branch of the ground wire of the power strip 2. The plug 12 and the discharge socket 21 do not connect the ground wires PE1 and PE2 through the connection of the first contact 121 and the second contact 211. The plug 12 and the discharge socket 21 are also provided with grounding plates to achieve grounding connection. Optionally, the identification unit is a resistance measurement circuit. One detection terminal can be set on the first contact 121, and the other detection terminal can be set on the grounding plate of the plug 12. When the plug 12 is connected to the discharge socket 21, the identification unit can detect the resistance value in the circuit of the first contact 121-the second contact 211-the grounding plate of the discharge socket 21-the grounding plate of the plug 12. When the detected resistance value of the identification resistor R1 meets the preset resistance value, it can be determined that the plug 12 is inserted into the discharge socket 21. If no resistance is detected, it can be determined that the plug 12 is not inserted into the discharge socket 21. Optionally, the first contact 121 and the second contact 211 are made of highly conductive materials, such as copper or silver.

[0046] In an embodiment of this utility model, the control module further includes a voltage detection unit, which is used to detect voltage to determine the power supply terminal of the charging and discharging gun 1.

[0047] In this embodiment, the voltage detection unit can detect the voltage of the plug 12. When a voltage is detected at the plug 12, it is determined that the plug 12 of the charging and discharging gun 1 is connected to the power supply terminal, and the power supply terminal is used as the power supply terminal.

[0048] In actual implementation, the two detection terminals of the voltage detection unit are connected to the neutral and live wire terminals of plug 12, respectively, and the voltage of plug 12 is converted to a safe low voltage. The voltage detection unit determines whether plug 12 is connected to the power supply terminal by comparing whether this safe low voltage meets a preset value. If it meets the preset value, plug 12 is determined to be connected to the power supply terminal, and the power supply terminal is the power supply terminal; if the voltage is much lower than the preset value, plug 12 is determined not to be connected to the power supply terminal, and the vehicle terminal is the power supply terminal.

[0049] In an embodiment of this utility model, the control module further includes a switching unit, which is disposed on the charging and discharging gun 1. The switching unit is used to disconnect the circuit of the charging and discharging gun 1 when the charging and discharging device 100 is not in the discharging mode or the charging mode.

[0050] In this embodiment, when the charging / discharging device 100 is not in discharge mode or charging mode, the switching unit always disconnects the circuit of the charging / discharging gun 1, keeping it in a non-powered state, thereby further improving the safety of the charging / discharging device 100 during use. When the charging / discharging device 100 enters discharge mode or charging mode, the switching unit connects the circuit of the charging / discharging gun 1, enabling the charging / discharging gun 1 to be powered on.

[0051] Specifically, the switching unit can be located on the neutral wire N1 or the live wire L1 between the nozzle 11 and the plug 12. In actual implementation, when both the nozzle 11 and the plug 12 are unused, the switching unit disconnects the circuit of the charging / discharging gun 1; when the nozzle 11 is unused and the plug 12 is inserted into the discharge socket 21 or connected to the power supply, the switching unit disconnects the circuit of the charging / discharging gun 1; when the nozzle 11 is connected to the vehicle and the plug 12 is unused, the switching unit disconnects the circuit of the charging / discharging gun 1.

[0052] Optionally, the switching unit can control the on / off state of the charging / discharging gun 1 circuit via a relay.

[0053] In an embodiment of this utility model, the charging and discharging gun 1 is provided with an overload protection unit, which is used to disconnect the circuit of the charging and discharging gun 1 when the charging and discharging gun 1 is overloaded.

[0054] In this embodiment, during the charging or discharging process of the charging / discharging gun 1, if the current exceeds the safety limit, the overload protection unit automatically cuts off the circuit of the charging / discharging gun 1 to prevent damage to the charging / discharging gun 1 or a safety accident caused by excessive current. Optionally, the overload protection unit can control the on / off state of the charging / discharging gun 1 circuit through a relay.

[0055] In actual implementation, both the charging / discharging gun 1 and the power strip 2 are equipped with a temperature control unit. This unit can detect the operating temperature of the charging / discharging gun 1 and the power strip 2. When the temperature exceeds a preset range, the temperature control unit can feed this information back to the vehicle. The vehicle then controls the output power accordingly to reduce the operating temperature of the charging / discharging gun 1 and the power strip 2, thus preventing any potential hazards. When the temperature exceeds a safe limit, the temperature control unit can control the charging / discharging gun 1 to disconnect the circuit.

[0056] In embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the power strip 2 is also provided with multiple power sockets 22, which are spaced apart and used to connect electrical equipment.

[0057] In this embodiment, the arrangement of multiple power sockets 22 allows the charging and discharging device 100 to supply power to multiple electrical devices, thereby meeting the different power needs of users.

[0058] Specifically, the live wire, neutral wire, and ground wire of the electrical socket 22 are connected in parallel with the live wire L2, neutral wire N2, and ground wire PE2 inside the power strip 2. That is, the power strip 2 has a total live wire L2, neutral wire N2, and ground wire PE2, and the live wire, neutral wire, and ground wire of each electrical socket 22 are respectively connected to the total live wire L2, neutral wire N2, and ground wire PE2.

[0059] Optionally, the multiple power outlets 22 can be two-prong outlets, three-prong outlets, etc., to accommodate the plugs 12 of different electrical devices. Optionally, the power strip 2 is equipped with an indicator light; when the charging / discharging device 100 enters the discharging module, the indicator light illuminates to indicate to the user that the power strip 2 is energized. Optionally, the power strip 2 can also be equipped with a master switch, allowing the user to simultaneously switch the circuit between the power outlets 22 and the discharging outlet 21 as needed.

[0060] In embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the discharge socket 21 is provided with a receiving groove 212, which is used for inserting the plug 12 into the discharge socket 21. The side wall of the receiving groove 212 is provided with a limiting groove 213, and the periphery of the plug 12 is provided with a limiting protrusion 122, which is used to limit and cooperate with the limiting groove 213.

[0061] In this embodiment, the shape of the receiving groove 212 matches the shape of the plug 12 housing. When the user inserts the plug 12 into the socket, the side wall of the receiving groove 212 serves as a preliminary guide and prevents misinsertion. The limiting groove 213 on the side wall of the receiving groove 212 extends along the insertion and removal direction of the plug 12 and is connected to the opening of the receiving groove 212. When the user inserts the plug 12 into the socket, the limiting protrusion 122 on the periphery of the plug 12 follows the plug 12 into the limiting groove 213. The limiting cooperation between the limiting protrusion 122 and the limiting groove 213 can further guide and limit the plug 12, so that the pins on the plug 12 are accurately inserted into the socket of the discharge socket 21, improving the convenience of use for the user.

[0062] Optionally, multiple sets of limiting grooves 213 and limiting protrusions 122 can be provided. Multiple limiting grooves 213 are arranged at intervals along the circumference of receiving groove 212, and multiple limiting protrusions 122 are arranged at intervals along the circumference of plug 12, so as to further ensure the stability of plug 12 when it is plugged into discharge socket 21.

[0063] In embodiments of this utility model, such as Figure 1 and Figure 2As shown, the side wall of the receiving groove 212 is also provided with a grounding spring 214, which is connected to the ground wire of the power strip 2. The periphery of the plug 12 is provided with a grounding metal piece 123, which is connected to the ground wire of the charging and discharging gun 1. The grounding metal piece 123 is used for the grounding spring 214 to support it.

[0064] In this embodiment, when the plug 12 is inserted into the discharge socket 21, the grounding metal piece 123 located around the plug 12 abuts against the grounding spring piece 214 on the side wall of the receiving groove 212, thereby connecting the ground wire of the charging / discharging gun 1 with the ground wire of the power strip 2. The grounding spring piece 214 has a certain elasticity and can abut tightly against the grounding metal piece 123 to ensure the reliability of the connection between the ground wire of the charging / discharging gun 1 and the ground wire of the power strip 2. It can also limit the plug 12 to a certain extent, improving the safety of the power strip 2 during use.

[0065] Specifically, the socket of the discharge socket 21 is located at the bottom of the receiving groove 212, and the grounding spring 214 is located on the side wall of the receiving groove 212. Thus, when the user inserts the plug 12 into the discharge socket, before the live wire pin and neutral wire pin of the plug 12 contact the corresponding live wire contact and neutral wire contact inside the socket, the grounding metal piece 123 located around the plug 12 first contacts the grounding spring 214 on the side wall of the receiving groove 212. That is, the ground wire of the plug 12 and the ground wire of the socket 2 are connected before the neutral and live wires and disconnected after the neutral and live wires, ensuring reliable grounding and greatly reducing the risk of electric shock.

[0066] Optionally, plug 12 is a European standard plug, and power strip 2 is a European standard power strip. Optionally, there are two grounding springs 214, which are arranged opposite each other. Correspondingly, there are also two grounding metal pieces 123, which are located on both sides of plug 12 to increase the grounding path. If one set of grounding springs 214 and grounding metal pieces 123 has poor contact, the other set of grounding springs 214 and grounding metal pieces 123 can still ensure the connection of the ground wire, improving the reliability of grounding. Optionally, the power socket 22 on power strip 2 can be set with reference to the discharge socket 21. Optionally, there is a groove on the periphery of plug 12, and the grounding metal piece 123 is located in the groove. The grounding spring 214 extends into the groove and abuts against the grounding metal piece 123.

[0067] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A charging and discharging device, characterized in that, The charging and discharging device includes: The power strip is equipped with a discharge socket; A charging and discharging gun, one end of which is provided with a gun head for connecting to a vehicle, and the other end of which is provided with a plug for connecting to a power source or a discharge socket; A control module is provided on the charging and discharging gun. The control module is used to detect the power supply terminal of the charging and discharging gun and the insertion object of the plug, and to control the working mode of the charging and discharging device according to the power supply terminal of the charging and discharging gun and the insertion object of the plug.

2. The charging and discharging device as described in claim 1, characterized in that, The control module is configured to control the charging and discharging device to enter the discharging mode when it detects that the vehicle is powered and the plug is inserted into the discharging socket; the control module is also configured to control the charging and discharging device to enter the charging mode when it detects that the power supply is powered.

3. The charging and discharging device as described in claim 2, characterized in that, The plug has a first contact, the power strip has a second contact, and the control module is used to detect whether the first contact is connected to the second contact in order to determine whether the plug is inserted into the discharge socket.

4. The charging and discharging device as described in claim 3, characterized in that, The first contact is connected to the ground wire of the charging / discharging gun, the second contact is connected to the ground wire of the power strip, and an identification resistor is connected between the second contact and the ground wire of the power strip. The control module includes an identification unit, which is used to identify the identification resistor to determine whether the first contact is connected to the second contact.

5. The charging and discharging device as described in claim 2, characterized in that, The control module also includes a voltage detection unit, which is used to detect voltage to determine the power supply terminal of the charging and discharging gun.

6. The charging and discharging device as described in claim 2, characterized in that, The control module further includes a switching unit located on the charging / discharging gun. The switching unit is used to disconnect the circuit of the charging / discharging gun when the charging / discharging device is not in the discharging mode or charging mode.

7. The charging and discharging device according to any one of claims 1 to 6, characterized in that, The charging and discharging gun is equipped with an overload protection unit, which is used to disconnect the circuit of the charging and discharging gun when the charging and discharging gun is overloaded.

8. The charging and discharging device according to any one of claims 1 to 6, characterized in that, The power strip is also equipped with multiple power sockets, which are spaced apart and used to connect electrical equipment.

9. The charging and discharging device according to any one of claims 1 to 6, characterized in that, The discharge socket is provided with a receiving groove for inserting the plug into the discharge socket. The side wall of the receiving groove is provided with a limiting groove, and the periphery of the plug is provided with a limiting protrusion for limiting and engaging with the limiting groove.

10. The charging and discharging device as described in claim 9, characterized in that, The side wall of the receiving slot is also provided with a grounding spring, which is connected to the ground wire of the socket. The periphery of the plug is provided with a grounding metal plate, which is connected to the ground wire of the charging and discharging gun. The grounding metal plate is used for the grounding spring to support it.

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