Charging and discharging gun and charging equipment

Abstract

The utility model provides a charging and discharging gun and charging equipment. The charging and discharging gun comprises a housing which is provided with an inner cavity; the control circuit assembly comprises a circuit board body and a control and protection circuit arranged on the front face of the circuit board body, and the control circuit assembly is arranged in the inner cavity; the pin assembly comprises a plurality of pins, and the plurality of pins are respectively connected with the control circuit assembly; one end of the cable extends into the inner cavity and is connected with the control circuit assembly, and the other end of the cable is used for being electrically connected with a commercial power grid. The charging and discharging gun is provided with a control and protection circuit of the charging pile in a limited space, so that efficient integration of functions of the charging pile and the charging gun is realized, the overall structure of equipment is obviously optimized, the overall size of the equipment is reduced, and the integration level of the equipment is improved.

Description

Technical Field

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

[0002] New energy vehicles have different charging requirements in different scenarios. In practical applications, a suitable charging mode can be selected according to one's own needs and charging conditions. However, the current charging system has high costs, large volume, and complicated installation.

[0003] Therefore, there is a need to provide a charging gun and a charging device to at least partially solve the above problems. Summary of the Utility Model

[0004] A series of simplified concepts are introduced in the summary of the utility model, which will be further described in detail in the specific implementation section. The summary of the utility model does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0005] To at least partially solve the above problems, a first aspect of the utility model provides a charging and discharging gun, comprising:

[0006] A housing having an inner cavity;

[0007] A control circuit assembly, which includes a circuit board body and a control and protection circuit provided on the front surface of the circuit board body, and the control circuit assembly is disposed in the inner cavity;

[0008] A pin assembly, which includes a plurality of pins respectively connected to the control circuit assembly;

[0009] A cable, one end of which extends into the inner cavity and is respectively connected to the control circuit assembly, and the other end of the cable is used for electrically connecting to the municipal power grid.

[0010] According to the charging and discharging gun provided by the first aspect of the utility model, the control and protection circuit of the charging pile is arranged in the limited space of the charging and discharging gun, realizing the efficient integration of the functions of the charging pile and the charging gun, significantly optimizing the overall structure of the device, reducing the overall volume of the device, and improving the integration degree of the device.

[0011] Optionally, the housing includes a button, the control circuit assembly includes a switching element disposed on the back surface of the circuit board body and located below the button, so that the switching element is triggered when the button is pressed.

[0012] Optionally, the charging and discharging gun further includes a locking mechanism, which is integrally provided with the button.

[0013] Optionally, the circuit board body includes a first PCB board, and the cable is connected to the first PCB board.

[0014] Optionally, the first PCB board is provided with a pin socket, and the pins of the switching element are inserted into the pin socket.

[0015] Optionally, the circuit board body further includes a second PCB board, which is disposed opposite to the first PCB board below and is electrically connected to the first PCB board.

[0016] Optionally, the control and protection circuit includes a control sub-circuit and a protection sub-circuit. The control sub-circuit is disposed on the first PCB board, and the protection sub-circuit is disposed on the second PCB board.

[0017] Optionally, the first PCB board or the second PCB board is provided with an avoidance groove, and at least one of the pins passes through the avoidance groove and is connected to the other PCB board by soldering.

[0018] Optionally, the cable is connected to the PCB board connected to the plurality of pins or the control and protection circuit.

[0019] Optionally, the control and protection circuit includes an electric control element. The electric control element includes a common terminal, a normally open terminal, and a normally closed terminal. The plurality of pins are respectively connected to the common terminal. The cable passes between the first PCB board and the second PCB board and is connected to the normally closed terminal. The switching element is electrically connected to the normally open terminal.

[0020] Optionally, the pin socket includes a first connection portion, a second connection portion, and a third connection portion that are connected in sequence. The first connection portion and the third connection portion are disposed opposite to each other. The second connection portion is connected between the first connection portion and the third connection portion, and the second connection portion is used for connecting to the first PCB board;

[0021] The distance between the first connection portion and the third connection portion gradually increases from the middle toward the direction away from the second connection portion.

[0022] Optionally, the housing includes a head and a handle portion. The head and the handle portion are hermetically connected. The pin assembly is disposed between the head and the handle and is fixedly connected to the housing by potting, so that the head, the handle portion, and the pin assembly form a sealed inner cavity.

[0023] Optionally, at least one card slot is provided in the housing and / or the pin assembly along the insertion direction of the plurality of pins into the vehicle socket, and the card slot is used to fix the circuit board body.

[0024] Optionally, when there are multiple card slots, the multiple card slots are arranged side by side in a direction perpendicular to the insertion direction.

[0025] Optionally, the pin assembly further includes:

[0026] A pin board, which is formed with a plurality of fixing holes for fixing the plurality of pins;

[0027] A reinforcing portion, which is inserted and connected to the plurality of pins.

[0028] Optionally, the reinforcing portion is configured as a hollow structure, and the pins are inserted into the reinforcing portion; or,

[0029] The pins are configured as hollow structures, and the reinforcing portion is inserted into the pins.

[0030] Optionally, the pin board and the reinforcing portion are integrally formed.

[0031] Optionally, the pin assembly further includes a boss portion, the boss portion is connected to the pin board, and the boss portion surrounds the periphery of the fixing hole, and the plurality of pins are inserted into the boss portion.

[0032] Optionally, the plurality of pins include a CC pin, a CP pin, an L pin, a PE pin, and an N pin.

[0033] The second aspect of the present invention provides a charging device, including the above-mentioned charge and discharge gun.

[0034] According to the charging device of the second aspect of the present invention, the integrated charge and discharge gun, as a part of the charging device, can provide a convenient charging experience for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The following drawings of the embodiments of the present invention are hereby used as a part of the present invention to understand the present invention. The embodiments and descriptions thereof shown in the drawings are used to explain the principles of the present invention. In the drawings,

[0036] Figure 1 is an external view of a charge and discharge gun according to an embodiment of the present application;

[0037] Figure 2 is a schematic internal structure diagram of a charge and discharge gun according to an embodiment of the present application;

[0038] Figure 3Is a three-dimensional schematic diagram of a pin socket according to an embodiment of the present application;

[0039] Figure 4 Is a cross-sectional schematic diagram of a charge and discharge gun according to an embodiment of the present application;

[0040] Figure 5 Is a three-dimensional exploded schematic diagram of a charge and discharge gun according to an embodiment of the present application;

[0041] Figure 6 Is a schematic diagram of the internal structure of a charge and discharge gun according to an embodiment of the present application;

[0042] Figure 7 Is a three-dimensional schematic diagram of a pin assembly according to an embodiment of the present application;

[0043] Figure 8 Is a three-dimensional exploded schematic diagram of a pin assembly according to an embodiment of the present application;

[0044] Figure 9 Is a schematic diagram of the internal structure of a charge and discharge gun according to another embodiment of the present application;

[0045] Figure 10 Is a three-dimensional schematic diagram of a pin assembly according to another embodiment of the present application;

[0046] Figure 11 Is a three-dimensional schematic diagram of a pin board, a strengthening part and a boss part according to another embodiment of the present application;

[0047] Figure 12 Is a three-dimensional schematic diagram of a pin according to another embodiment of the present application;

[0048] Figure 13 Is a connection schematic diagram of a head and a PCB board according to another embodiment of the present application;

[0049] Figure 14 Is an external view of a charging device according to an embodiment of the present application;

[0050] Figure 15 Is an external view of a charging device according to another embodiment of the present application;

[0051] Figure 16 Is an external view of the combined V2L discharge socket system of the charge and discharge gun of the present utility model.

[0052] Description of the Reference Numerals

[0053] 10: Housing

[0054] 11: Head

[0055] 111: Protection cover

[0056] 112: Sealing ring

[0057] 113: Head card slot

[0058] 12: Handle part

[0059] 121: Button cover plate

[0060] 122: Sealing element

[0061] 123: First accommodation hole

[0062] 124: Second accommodation hole

[0063] 13: Button

[0064] 101: Inner cavity

[0065] 20: Control circuit component

[0066] 21: First PCB board

[0067] 210: Pin socket

[0068] 211: First connection part

[0069] 212: Second connection part

[0070] 213: Third connection part

[0071] 214: Avoidance groove

[0072] 22: Second PCB board

[0073] 23: Switch element

[0074] 30: Pin assembly

[0075] 31: Pin board

[0076] 311: Fixing hole

[0077] 32: Pin

[0078] 321: Opening

[0079] 33: Reinforcing part

[0080] 34: Boss part

[0081] 40: Cable

[0082] 50: Locking mechanism

[0083] 1: Charging and discharging gun

[0084] 2: Pile body

[0085] 3: Three - pin plug

[0086] 4: Power strip

[0087] D1: First direction Detailed implementation mode

[0088] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the embodiments of the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the embodiments of the present utility model, some well-known technical features in the art are not described.

[0089] In this article, ordinal numbers such as "first" and "second" cited in the present utility model are only identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component".

[0090] In this article, "up", "down", "front", "back", "left", "right", etc. are only used to represent the relative positional relationship between relevant parts, rather than defining the absolute positions of these relevant parts.

[0091] In this article, "equal", "same", etc. are not strict mathematical and / or geometric limitations, and also include errors that can be understood by those skilled in the art and are allowed in manufacturing or using, etc.

[0092] Unless otherwise specified, the numerical ranges in this article include not only the entire range within its two endpoints, but also several sub-ranges included therein.

[0093] Now, exemplary embodiments according to the present utility model will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many different forms and should not be construed as being limited only to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present utility model is thorough and complete, and the concept of these exemplary embodiments is fully conveyed to those of ordinary skill in the art.

[0094] In the existing integrated charging gun, the on-cable control and protection device of Mode 2 is integrated in the charging gun, which can only support low-current charging and cannot meet the requirements of large-current (such as above 16A) loads; while the charging system including the charging pile in Mode 3 has high cost, large volume and cumbersome installation. Therefore, this application proposes a charging and discharging gun and charging equipment, which can set the control and protection circuit of the charging pile in the limited space of the charging gun, realizing the efficient integration of the functions of the charging pile and the charging gun and improving the integration degree of the equipment. The following is a detailed description thereof.

[0095] Refer toFigures 1 to 2 , the present utility model provides a charging and discharging gun 1, comprising: a housing 10, a control circuit assembly 20, a pin assembly 30, and a cable 40.

[0096] Among them, the housing 10 has an inner cavity; the control circuit assembly 20 includes a circuit board body and a control and protection circuit disposed on the front surface of the circuit board body, and the control circuit assembly 20 is disposed in the inner cavity; the pin assembly 30 includes a plurality of pins 32, and the plurality of pins 32 are respectively connected to the control circuit assembly 20; one end of the cable 40 extends into the inner cavity and is respectively connected to the control circuit assembly 20, and the other end of the cable 40 is used for electrical connection to the municipal power grid.

[0097] In the present utility model, the control circuit assembly 20 is not only used to implement the functions of the original control and guidance circuit in the charging gun, but also can implement the relevant functions of the power supply device (charging pile) of Mode 3 stipulated by relevant national standards, control the entire charging process during charging, monitor various data during the charging process, and ensure the safety of the charging process. Integrating the charging pile function circuit into the charging and discharging gun 1 can save or reduce the volume of the charging pile.

[0098] In a specific implementation, the control and protection circuit 20 includes functions such as charging protection, charging status detection, remote reservation charging, and card swiping charging. Specifically, it includes a relay, a transformer, an instrument transformer, a current detection integrated circuit, a voltage detection integrated circuit, etc.

[0099] Since the main difference between Mode 2 and Mode 3 is that the output current of Mode 2 is lower than that of Mode 3, therefore, the control and protection circuit 20 in the present utility model can also implement the relevant functions of Mode 2.

[0100] In the present utility model, the housing 10 may include one or more components, and each component may be integrally injection molded by a plastic part, which will not be elaborated here. When the housing 10 may include multiple components, the multiple components can be assembled together to form a sealed housing.

[0101] In the present utility model, the cable 40 is an input cable for the municipal power supply and is used to supply power to the charging and discharging gun. The cable 40 is composed of three wires: a live wire (L), a null wire (N), and a protective earthing wire (PE).

[0102] In the present utility model, the pin assembly 30, the control circuit assembly 20, and the cable 40 are connected in sequence to form a current transmission link from the vehicle interface to the power grid. Among them, the pin assembly 30 is directly connected to the control circuit assembly 20, avoiding the setting of connecting components such as wires, thereby saving the occupied space of the control circuit assembly 20 and the pin assembly 30, and further improving the utilization rate of the inner cavity space, enabling the inner cavity to accommodate the control and protection circuits of the entire charging pile.

[0103] The charging and discharging gun 1 provided by the present utility model sets the control and protection circuits of the charging pile in a limited space, realizing the efficient integration of the functions of the charging pile and the charging gun, significantly optimizing the overall structure of the device, reducing the overall volume of the device, and improving the integration degree of the device.

[0104] Please continue to refer to Figure 1 and 2 , in a specific implementation, the housing 10 includes a head 11 and a handle portion 12. The head 11 is hermetically connected to the handle portion 12. The pin assembly 30 is disposed between the head 11 and the handle 12 and is fixedly connected to the housing 10 by potting, so that the head 11, the handle portion 12, and the pin assembly 30 form a sealed inner cavity 101.

[0105] The potting fixed connection can ensure a firm bond between the pin assembly 30 and the housing 10, and at the same time form a sealing layer between the pin assembly 30 and the housing 10, which can protect the internal circuits and electronic components from external forces and the external environment.

[0106] It can be understood that the inside of the head 11 and the inside of the handle portion 12 are both hollow. The head 11 is used for plugging and mating with the charging port on the new energy vehicle. The head 11 also forms an inner cavity together with the pin assembly 30 and the handle portion 12. The control circuit assembly 20 is installed in the inner cavity.

[0107] Preferably, the head 11 includes a protective cover 111. The protective cover 111 is movably connected to the head 11. In this way, when the charging and discharging gun 1 is not in use, the protective cover 111 can be sleeved on the head 11 of the housing 10 to cover the charging and discharging gun 1 and achieve the protection and waterproofing of the discharging gun 1.

[0108] Please continue to refer to Figure 2 , in a specific implementation, the housing 10 may include a button 13. The control circuit assembly 20 includes a switching element (not shown in the figure). The switching element is disposed on the back of the circuit board body and is located below the button 13, so that the switching element is triggered when the button 13 is pressed.

[0109] It can be understood that the button 13 is movably mounted on the charging and discharging gun housing 10, and the switching element is disposed below the button 13 and on the movement path of the button 13. Therefore, the switching element can be triggered by the button 13 to generate a feedback signal.

[0110] Exemplarily, the button 13 has a pin hole, and the pin hole is connected to the charging and discharging gun housing 10 through a fixed shaft, so that the button 13 is movably mounted on the charging and discharging gun housing 10.

[0111] By directly triggering the switching element with the button, the space inside the charging and discharging gun can be saved, the space utilization rate can be improved, and a foundation can be laid for arranging the functional circuit of the charging pile inside the charging and discharging gun.

[0112] According to an embodiment of the present application, the circuit board body includes a first PCB board, and the cable is connected to the first PCB board.

[0113] When the circuit board body includes a first PCB board, a plurality of pins are respectively connected to the first PCB board, and the switching element is disposed on the back of the first PCB board.

[0114] In a specific implementation, the first PCB board is provided with a pin socket, and the pins of the switching element are inserted into the pin socket.

[0115] By inserting the pins of the switching element into the pin socket instead of using signal lines, the space inside the charging and discharging gun can be saved, and the space utilization rate can be improved.

[0116] Next, refer to Figure 3 to describe the pin socket according to an embodiment of the present application.

[0117] As Figure 3 shown, in this embodiment, the pin socket 210 includes a first connection portion 211, a second connection portion 212, and a second connection portion 213 that are connected in sequence. The first connection portion 211 and the second connection portion 213 are disposed opposite to each other, and the second connection portion 212 is connected between the first connection portion 211 and the second connection portion 213. The second connection portion 212 is used to connect to the first PCB; the distance between the first connection portion 211 and the second connection portion 213 gradually increases from the middle toward the direction away from the second connection portion 212.

[0118] Optionally, the first connecting portion 211 and the second connecting portion 213 form a structure similar to an "X" shape. Specifically, the ends of the first connecting portion 211 and the second connecting portion 213 that are away from the second connecting portion 212 are provided with a structure with gradually expanding openings for receiving the switching element, so that the switching element can be inserted and positioned more easily and stably. The distance between the middle of the first connecting portion 211 and the middle of the second connecting portion 213 is the smallest to maintain contact when connecting with the switching element. The switching element can deform the first connecting portion 211 and the second connecting portion 213, so as to ensure good contact between the first connecting portion 211, the second connecting portion 213 and the switching element respectively, thereby providing a stable electrical connection effect.

[0119] According to an embodiment of the present application, the circuit board body further includes a second PCB board, which is disposed opposite to the first PCB board below and is electrically connected to the first PCB board.

[0120] Since the switching element is disposed on the back of the first PCB board, in this embodiment, the second PCB board is disposed opposite to the first PCB board below, which not only means that the second PCB board is parallelly disposed directly below the first PCB board, on the front side of the first PCB board; but also means that the front of the first PCB board is opposite to the front of the first PCB board. Therefore, the control and protection circuit is disposed in the interval between the first PCB board and the second PCB board. The interval space between the first PCB board and the second PCB board is used to place the control and protection circuit, and fine layout is carried out in a limited space, optimizing the space layout inside the charging and discharging gun to maximize the use of the limited space and reduce the volume of the overall charging and discharging gun. While achieving integration, the normal operation of each function is ensured.

[0121] Specifically, when the circuit board body includes the first PCB board and the second PCB board, multiple pins on the pin assembly can only be connected to one PCB board, either directly connected to the first PCB board or directly connected to the second PCB board, and no specific limitation is made in this application.

[0122] However, it should be noted that no matter which PCB board the pin is connected to, the cable must be connected to the same PCB board as the pin, which simplifies the circuit and reduces the signal transmission between the two PCB boards.

[0123] By providing two PCB boards, the circuit board area can be effectively increased, so as to be able to accommodate the control and protection circuit in a high-power charging and discharging gun and improve the power of the charging and discharging gun.

[0124] Optionally, the control and protection circuit includes a control sub-circuit and a protection sub-circuit. The control sub-circuit is disposed on the first PCB board, and the protection sub-circuit is disposed on the second PCB board.

[0125] Refer to the following Figure 4 and 5 to describe the charging and discharging gun according to an embodiment of the present invention.

[0126] As Figure 4 and 5 shown, the charging and discharging gun 1 of this embodiment includes: a housing 10, a control circuit assembly 20, a pin assembly 30, a cable 40, and a locking mechanism 50.

[0127] The housing 10 includes a head 11, a handle portion 12, and a button 13. The head 11 is hermetically connected to the handle portion 12. The pin assembly 30 is disposed between the head 11 and the handle 12. At least two buckles can be provided inside the head 11. When the pin board assembly 30 is inserted into the head 11, the buckles inside the head 11 will catch the pin board assembly 30. At this time, the pin board assembly 30 is fixed to the head 11 and is fixedly connected to the housing 10 by potting, so that a sealed inner cavity 101 is formed between the head 11, the pin assembly 30, and the handle portion 12. The control circuit assembly 20 is disposed in the inner cavity 101.

[0128] The housing 10 further includes a seal 122. A first receiving hole 123 is formed in the housing 10. The seal 122 can cooperate with the first receiving hole 123, so that when the seal 122 is installed on the housing 10, it is assembled and sealed with the housing 10; wherein, a through hole is formed in the seal 122, and the cable 40 passes through the through hole and extends into the charging and discharging gun housing 10 and is assembled and sealed with the seal 122.

[0129] The head 11 of the housing 10 includes a protective cover 111, and the protective cover 111 is movably connected to the head 11.

[0130] The handle portion 12 of the housing 10 includes a button cover plate 121. A second receiving hole 124 is formed in the button cover plate 121, and the button 13 is disposed in the second receiving hole 124.

[0131] The head 11 and the handle portion 12 can be hermetically connected through a sealing ring 112. Exemplarily, the sealing ring 112 in the present invention can be specifically set as a rubber part or a silicone part, so that the whole sealing ring 112 can be compressed and deformed, and the assembly seal between the head 11 and the handle portion 12 can be achieved.

[0132] Specifically, there is a groove on the outer side of the rear end of the head 11, and the sealing ring 112 is placed in the groove. When the head 11 together with the sealing ring 112 is inserted into the handle portion 12, the sealing ring will have a certain interference with the housing, thereby preventing moisture outside the gun from entering the gun.

[0133] The control circuit assembly 20 includes a switching element 23, and a first PCB board 21 and a second PCB board 22 spaced apart along the first direction D1. The first PCB board 21 is electrically connected to the second PCB board 22. The switching element 23 is disposed on the back surface of the first PCB board 21 and is located below the button 13. The first PCB board 21 is provided with a pin socket 210, and the pins of the switching element 23 are inserted into the pin socket 210.

[0134] By arranging the first PCB board 21 and the second PCB board 22 at intervals, the internal space layout of the charging and discharging gun 1 is optimized, making the volume of the entire charging and discharging gun 1 more compact and facilitating carrying and use.

[0135] Exemplarily, optionally, the switching element 23 is a micro switch, which is used to control or start specific functions, such as starting charging, stopping charging, etc. When the user presses the button and triggers the switching element 23, the mechanical structure inside it will change, causing the moving contact to contact or disconnect from the fixed contact, thereby establishing or disconnecting an electrical connection with the circuit on the first PCB board 21 through the pin socket 210.

[0136] The locking mechanism 50 is integrally provided with the button 13. A pin hole is provided between the locking mechanism 50 and the button 13. The pin hole is connected to the charging and discharging gun housing 10 through a fixed shaft, so that the locking mechanism 50 can be lifted when the button 13 is pressed to achieve unlocking. At this time, the charging and discharging gun 1 can be unplugged or inserted; when the button 13 is released, the locking mechanism 50 can fall. At this time, if the charging and discharging gun 1 has been inserted into the vehicle interface, locking can be achieved.

[0137] The pin assembly 30 includes a pin board 31 and a plurality of pins 32. The plurality of pins 32 are respectively connected to the control circuit assembly 20; one end of the cable 40 extends into the inner cavity and is respectively connected to the control circuit assembly 20. The other end of the cable 40 is used to be connected to the municipal power grid.

[0138] The following will separately describe the cases where the plurality of pins 32 of the pin assembly 30 and the cable 40 are connected to the first PCB board 21 and the second PCB board 22.

[0139] Figure 6 is a schematic diagram of the internal structure of a charging and discharging gun according to an embodiment of the present application. As Figure 6 shown, the plurality of pins 32 of the pin assembly 30 are all connected to the electronic control components of the control and protection circuit. The cable 40 passes between the first PCB board 21 and the second PCB board 22 and is connected to the electronic control components of the control and protection circuit.

[0140] Specifically, the electronic control component can be a relay. The electronic control component includes a common terminal, a normally open terminal, and a normally closed terminal. A plurality of pins 32 are respectively connected to the common terminal, the cable 40 is connected to the normally closed terminal, and the switching element is electrically connected to the normally open terminal. The connection method here can be a welding connection, which not only provides a physical connection but also ensures good electrical conduction between the pin assembly 30 and the PCB board. The metal connection formed by the welding point can effectively transmit current and signals, ensuring the normal operation of the circuit.

[0141] Since transmitting the power signal through the PCB board will increase the size of the circuit board, in this embodiment, the cable 40 and the plurality of pins 32 are both connected to the electronic control component, thereby reducing the occupied space on the circuit board and improving the space utilization rate.

[0142] The pin assembly 30 further includes: a pin board 31, and the pin board 31 is formed with a plurality of fixing holes for fixing the plurality of pins 32;

[0143] A reinforcing portion 33, and the reinforcing portion 33 is plugged and connected with the plurality of pins 32.

[0144] The following Figures 7 - 8 specifically describes the pin assembly 30 in this embodiment.

[0145] As Figures 7 - 8 shown, the pin assembly 30 includes a pin board 31, pins 32, a reinforcing portion 33, and a boss portion 34. The pin board 31 is installed in the inner cavity 101, and the pin board 31 is formed with fixing holes 311. The fixing holes 311 penetrate through the pin board 31.

[0146] The reinforcing portion 33 is configured as a hollow structure, and the pins 32 are inserted through the reinforcing portion 33. That is, the reinforcing portion 33 is sleeved outside the pins 32, so that the strength of the pins 32 can be effectively improved. Optionally, the pins 32 and the reinforcing portion 33 jointly pass through the fixing holes 311.

[0147] The strength of the pins 32 is relatively low, and they may be deformed or broken when bearing a certain load. This solution combines the pin board 31, the reinforcing portion 33, and the pins 32 to improve the strength of the pins 32. Through the arrangement of the reinforcing portion 33, the pins 32 can maintain a relatively high strength, are less likely to be deformed or broken when bearing a load, have a long service life, and high durability.

[0148] The fixing holes 311 extend from the middle of the pin board 31 to the periphery of the pin board 31. That is, the fixing holes 311 are of a notch structure. The pins 32 can be installed from the periphery of the pin board 31 into the fixing holes 311, and the pin board 31 can be easily installed or removed.

[0149] Optionally, the processing methods of the pins 32 include but are not limited to stamping process and turning process. The aforementioned processing methods are applicable to mass production, can complete the processing of the pins 32 quickly and efficiently, and can achieve high-precision processing, reducing production costs and improving production efficiency. Preferably, the processing method of the pins 32 is the stamping process. The pins 32 produced by the stamping process greatly improve the production efficiency compared with the pins 32 produced by the turning process, and also save a large amount of raw material costs.

[0150] Optionally, the surface of the pins 32 is treated by nickel plating or silver plating. The nickel plating or silver plating treatment can form a uniform and well-conductive metal film on the surface of the pins 32 to reduce the contact resistance on the surface of the pins 32 and increase the solderability. In addition, it can effectively prevent the surface of the pins 32 from being oxidized and corroded, and extend the service life of the pins 32.

[0151] The boss portion 54 is connected to the pin board 51, and the boss portion 54 surrounds the periphery of the fixing hole 511. The inner wall of the boss portion 54 is connected to the inner wall of the fixing hole 511 to form a smooth wall surface. The pin 52 is inserted into the boss portion 54. The boss portion 54 surrounds the periphery of the fixing hole 511, providing additional support and stability for the pin 52, making the connection between the pin 52 and the pin board 51 more firm and reliable, reducing the risk of loosening or falling off, and also improving the mechanical strength of the pin assembly 50.

[0152] Figure 9 is a schematic diagram of the internal structure of a charging and discharging gun according to another embodiment of the present application. As Figure 9 shown, the PCB board 20 includes a first PCB board 21 and a second PCB board 22. The pin assembly 30 includes a pin board 31, pins 32 and a reinforcing portion 33. A plurality of pins 32 are all connected to the second PCB board 22. The cable 40 is connected to one end of the second PCB board 22 away from the pin assembly 30. Specifically, the connection method here can be a welding connection.

[0153] When the pins 32 are all electrically connected to the second PCB board 22, due to the limited space in the inner cavity of the housing 10, the first PCB board 21 is provided with an avoidance groove 214, and at least one pin 32 passes through the avoidance groove 214 and is welded to the second PCB board 22. The avoidance groove 214 is used for the pins 32 to pass through, so as to balance and control the spatial layout of the circuit assembly 20 and the pins 32.

[0154] In this embodiment, the cable 40 and a plurality of pins 32 are all connected to the second PCB board 22, thereby reducing the occupied space of the cable 40 and improving the space utilization rate.

[0155] The following will be combined with Figures 10 - 12 to specifically describe the pin assembly 30 in this embodiment.

[0156] As Figures 10 - 11 shown, the pin assembly 30 includes a pin board 31, pins 32, a reinforcing portion 33, and a boss portion 34.

[0157] The pin 32 is configured as a hollow structure, and the reinforcing portion 33 is inserted into the pin 32. The hollow pin 32 can reduce the overall weight. The hollow pin 32 has lower strength compared to a solid pin 32. Although the pin 32 is a hollow structure, with the arrangement of the reinforcing portion 33, it can still maintain a relatively high strength, thus reducing the overall weight of the plug while maintaining a certain strength. The hollow pin 32 is less likely to deform or break when bearing a load, and the pin 32 has a long service life and high durability.

[0158] In this embodiment, the pin board 31 and the reinforcing portion 33 are integrally formed. That is, the reinforcing portion 33 and the pin board 31 together define a fixing hole 311. The fixing hole 311 is connected to the pin 32.

[0159] Optionally, the pin board 31 and the reinforcing portion 33 are formed by in-mold injection molding of the pin 32. Specifically, by injecting plastic in a mold provided with the pin 32, after hardening and demolding, the pin assembly 30 can be obtained.

[0160] In-mold injection molding is an efficient, high-precision, high-production-efficiency, and low-cost production method. Through this method, the pin board 31 and the reinforcing portion 33 can be integrally formed, and at the same time of injection molding, the assembly of the pin board 31, the reinforcing portion 33, and the pin 32 can be achieved. The integrally formed pin assembly 30 has high overall strength and stability.

[0161] The fixing holes 311 include a plurality of them, and the plurality of fixing holes 311 are arranged at intervals on the base; a plurality of pins 32, and the plurality of pins 32 correspond to the plurality of fixing holes 311 one by one. The pins 32 are inserted into the corresponding fixing holes 311 and fixed to the base, and one end of the pin 32 passes through the fixing hole 311 and extends out of one side surface of the base.

[0162] Optionally, the part of the reinforcing portion 33 passing through the fixing hole 311 is fixedly connected to the inner wall of the fixing hole 311.

[0163] Optionally, on a plane perpendicular to the first direction D1, the projection of the fixing hole 311 and the projection of the opening 321 at least partially overlap. That is, at the fixing hole 311, the reinforcing portion 33 can be exposed from the opening 321 and connected to the pin board 31. The forming structure of the reinforcing portion 33 and the pin board 31 is simple and the connection is reliable.

[0164] In this embodiment, the boss portion 34 and the reinforcing portion 33 can be combined. Optionally, the boss portion 34, the reinforcing portion 33, and the pin board 31 are integrally formed; thereby, the plastic coating length of the pin 32 can be increased to avoid insufficient bonding strength caused by too short plastic coating length of the pin 32.

[0165] The boss portion 34 is connected to the pin board 31, and the boss portion 34 surrounds the periphery of the fixing hole 311. The pin 32 is inserted into the boss portion 34. The boss portion 34 surrounds the periphery of the fixing hole 311, providing additional support and stability for the pin 32, making the connection between the pin 32 and the pin board 31 more firm and reliable, reducing the risk of loosening or falling off, and also improving the mechanical strength of the pin assembly 30. Optionally, the boss portion 34 is connected to the first side and / or the second side of the pin board 31. The boss portion 34 protrudes from the first side and / or the second side.

[0166] Figure 12 is a three-dimensional schematic diagram of a pin according to another embodiment of the present application. As Figure 12 shown, the pin 32 is provided with an opening 321 for the reinforcing portion 33 to be exposed, and the exposed reinforcing portion 33 is fixedly connected to the pin board 31. Thus, the reinforcing portion 33 and the pin board 31 can be integrally formed. The structure of the pin assembly 30 provided by the present utility model is stable and not prone to loosening or falling off, improving the use safety.

[0167] It should be noted that the above two different pin assemblies can both be applied to Figure 6 and Figure 9 the charging and discharging gun with the structure shown, but the pins need to be connected to the same PCB board or switching device as the cable.

[0168] According to an embodiment of the present application, at least one card slot is provided in the housing and / or the pin assembly along the insertion direction of the plurality of pins into the vehicle socket, and the card slot is used to fix the circuit board body.

[0169] The housing may include a head portion and a handle portion. Therefore, the card slot in the handle portion can cooperate with the card slot in the head portion / pin assembly to define the positional relationship between the control circuit assembly of the charging and discharging gun and the housing of the charging and discharging gun in the vertical and horizontal directions.

[0170] Figure 13 is a schematic diagram of the connection between the head portion and the PCB board according to an embodiment of the present application. As Figure 13 shown, the PCB board includes a first PCB board 21 and a second PCB board 22. The head portion 11 is provided with a plurality of card slots 113, and the plurality of card slots 113 are arranged side by side at least along the direction perpendicular to the insertion direction, and the extension direction of the card slots 113 is the same as that of the PCB board. At the same time, in the horizontal direction, two groups of card slots are provided on the left and right sides of the head portion. The first PCB board 21 and the second PCB board 22 are connected to the card slots 113. Through the arrangement of the card slots 113, the first PCB board 21 and the second PCB board 22 can be firmly installed inside the housing 10, reducing the risk of the PCB board loosening or falling off due to vibration or external force.

[0171] According to an embodiment of the present application, the plurality of pins include a CC pin, a CP pin, an L pin, a PE pin, and an N pin.

[0172] It should be noted that the CP pin may not be used when only used as a discharge gun.

[0173] The present utility model also provides a charging device, including the above-mentioned charge and discharge gun.

[0174] As a part of the charging device, the integrated charge and discharge gun can provide a convenient charging experience for users.

[0175] The following refers to Figure 14 to illustrate the charging device according to an embodiment of the present utility model.

[0176] As Figure 14 shown, in this embodiment, the charging device includes a charge and discharge gun 1 and a pile body 2. The pile body 2 is used to connect to an external structure, and the charge and discharge gun 1 is detachably connected to the pile body 2.

[0177] There is no electrical connection between the pile body 2 of the charging pile and the charge and discharge gun 1. The pile body 2 of the charging pile is small in volume, and the pile body 2 is fixed to a wall or a column through fasteners.

[0178] The cable 40 is an input cable. One end of the cable 40 is connected to the mains network, and the other end is connected into the charge and discharge gun 1. Thus, the charge and discharge gun 1 can be directly electrically connected to the mains through the cable 40. At this time, the charge and discharge gun 1 can be charged in Mode 3, and the charge and discharge gun 1 is used as a charging gun.

[0179] The following refers to Figure 15 to illustrate the charging device according to another embodiment of the present utility model.

[0180] As Figure 15 shown, in this embodiment, the charging device includes a charge and discharge gun 1 and a three-pin plug 3. The cable 40 is an input cable. One end of the cable 40 is connected to the three-pin plug 3, and the other end is connected into the charge and discharge gun 1. The three-pin plug 3 is used to connect to the household power grid. At this time, the charge and discharge gun 1 can be charged in Mode 2, and the charge and discharge gun 1 is used as a charging gun.

[0181] Preferably, the charging device may further include a power strip 4.

[0182] As Figure 16As shown, one end of the three-pin plug 3 is connected to the cable 40, and the plug end can be inserted into the socket strip 4. The cable 40 is connected to the charging and discharging gun 1. The cable 40 can be used as an output cable or an input cable. When the three-pin plug 3 is inserted into the socket strip 4 and the socket strip is connected to the user's electrical equipment, the charging and discharging gun 1 can discharge in the vehicle-to-load (V2L) mode; when the three-pin plug 3 is pulled out of the socket strip 4 and connected to the household power grid, the charging and discharging gun 1 serves as a charging gun.

[0183] Through the charging device of the present utility model, it is possible to support multiple application scenarios such as Mode 2, Mode 3, and V2L mode, achieving low cost, miniaturization, and integration of the charging device.

[0184] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the technical field of the present utility model. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. Terms such as "arranged" that appear herein can mean either that one component is directly attached to another component or that one component is attached to another component through an intermediate member. The features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0185] The present utility model has been described through the above embodiments. However, it should be understood that the above embodiments are only for the purpose of illustration and example, and are not intended to limit the present utility model within the scope of the described embodiments. Those skilled in the art can understand that according to the teachings of the present utility model, more variations and modifications can be made, and these variations and modifications all fall within the scope claimed by the present utility model.

Claims

1. A charging and discharging gun, characterized in that: include: a housing having an inner cavity; A control circuit assembly, the control circuit assembly comprising a circuit board body and a control and protection circuit arranged on the front side of the circuit board body, the control circuit assembly being arranged in the inner cavity; A pin assembly, the pin assembly comprising a plurality of pins, the plurality of pins being respectively connected to the control circuit assembly; A cable, one end of which extends into the inner cavity and is respectively connected to the control circuit components, and the other end of which is used to be electrically connected to the mains power grid.

2. The charge-discharge gun according to claim 1, characterized in that: The housing comprises a button, and the control circuit assembly comprises a switch element, which is arranged on the back of the circuit board body and below the button so that the switch element is triggered when the button is pressed.

3. The charge-discharge gun according to claim 2, characterized in that: The charging and discharging gun further comprises a locking mechanism, and the locking mechanism is integrally arranged with the button.

4. The charge-discharge gun according to claim 2, characterized in that: The circuit board body includes a first PCB board, and the cable is connected to the first PCB board.

5. The charge-discharge gun according to claim 4, characterized in that: The first PCB board is provided with a pin socket, and the pins of the switch element are plugged into the pin socket.

6. The charge-discharge gun according to claim 4, characterized in that: The circuit board body also includes a second PCB board, which is relatively arranged below the first PCB board and is electrically connected to the first PCB board.

7. The charge-discharge gun according to claim 6, characterized in that: The control and protection circuit includes a control subcircuit and a protection subcircuit. The control subcircuit is arranged on the first PCB board, and the protection subcircuit is arranged on the second PCB board.

8. The charge-discharge gun according to claim 6, characterized in that: The first PCB board or the second PCB board is provided with an avoidance groove, and at least one of the pins passes through the avoidance groove and is connected to the other PCB board by welding.

9. The charge-discharge gun according to claim 6, characterized in that: The cable is connected to a PCB board connected to the plurality of pins or the control and protection circuit.

10. The charge-discharge gun according to claim 9, characterized in that: The control and protection circuit includes an electronic control element, which includes a common end, a normally open end and a normally closed end. The multiple pins are respectively connected to the common end. The cable is inserted between the first PCB board and the second PCB board and connected to the normally closed end. The switch element is electrically connected to the normally open end.

11. The charge-discharge gun according to claim 5, characterized in that: The pin socket comprises a first connection portion, a second connection portion and a third connection portion which are connected in sequence, the first connection portion and the third connection portion are arranged opposite to each other, the second connection portion is connected between the first connection portion and the third connection portion, and the second connection portion is used to be connected to the first PCB board; The distance between the first connection portion and the third connection portion gradually increases from the middle portion toward a direction away from the second connection portion.

12. The charge-discharge gun according to claim 2, characterized in that: The shell includes a head and a handle, the head and the handle are sealed and connected, the pin assembly is arranged between the head and the handle, and is fixedly connected to the shell by glue filling, so that the head, the handle and the pin assembly form a closed inner cavity.

13. The charge-discharge gun according to claim 2, characterized in that: The housing and / or the pin assembly is provided with at least one slot along the plugging direction of the plurality of pins and the vehicle socket, and the slot is used to fix the circuit board body.

14. The charge-discharge gun according to claim 13, characterized in that: When there are multiple card slots, the multiple card slots are arranged side by side along a direction perpendicular to the plugging direction.

15. The charge-discharge gun according to claim 1, characterized in that: The pin assembly also includes: A pin board, wherein the pin board is formed with a plurality of fixing holes, and the plurality of fixing holes are used to fix the plurality of pins; A reinforcing portion is plug-connected to the plurality of pins.

16. The charge-discharge gun according to claim 15, characterized in that: The reinforcement part is a hollow structure, and the insertion pin is inserted into the reinforcement part; or, The insertion pin is a hollow structure, and the reinforcement portion is inserted into the insertion pin.

17. The charge-discharge gun according to claim 15, characterized in that: The pin plate and the reinforcement portion are integrally formed.

18. The charge-discharge gun according to claim 15, characterized in that: The pin assembly also includes a boss portion, which is connected to the pin plate and is arranged around the periphery of the fixing hole. The plurality of pins are plugged into the boss portion.

19. The charge-discharge gun according to any one of claims 1 to 18, characterized in that: The multiple pins include a CC pin, a CP pin, an L pin, a PE pin, and an N pin.

20. A charging device, characterized in that: It comprises the charge-discharge gun according to any one of claims 1 to 19.

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