Electricity taking gun converter

Abstract

The utility model relates to the field of new energy automobiles, in particular to an electricity taking gun converter which comprises a gun head assembly and a socket assembly which are fixedly connected, the gun head assembly comprises a gun head and a pin assembly arranged in the gun head, and the socket assembly comprises a base, a plug bush assembly installed in the base and a panel shell. One end of the panel shell is provided with a jack, the other end of the panel shell is connected with the gun head assembly, a circuit board and a waterproof assembly are further arranged between the gun head assembly and the panel shell, the circuit board is installed between the gun head assembly and the base and electrically connected with the pin assembly, the circuit board is arranged between the gun head assembly and the socket assembly, design and maintenance are simplified, and the waterproof assembly is arranged on the base. Later expansion is facilitated, and compatibility is enhanced; when a plug pin of an electric appliance is inserted into the jack, the plug pin is sealed by the waterproof assembly to ensure that the contact part of the plug pin and the plug bush assembly is dry, the service life of the socket assembly is prolonged, and electricity utilization safety is ensured.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicles, specifically to a power gun converter for use in new energy vehicles. Background Technology

[0002] With the rapid development of new energy vehicles and the energy storage advantages of their power batteries, related electrical accessories have also emerged rapidly. Power gun converters, as a member of the new energy vehicle discharge accessory product family, have become a mainstream product due to their convenience and cost-effectiveness. Currently, most products on the market adopt a stacked assembly mode with solder connections, resulting in low assembly efficiency and complex processes. Furthermore, existing power gun converters have low integration of control components, limited functionality, and are inconvenient to maintain. The plugs often use external waterproof covers to prevent internal water ingress, but the waterproofing effect is not ideal. Summary of the Invention

[0003] The purpose of this invention is to overcome at least one defect of the prior art and provide a power gun converter.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A power supply adapter includes a fixedly connected gun head assembly and a socket assembly. The gun head assembly is used to connect to a vehicle for power supply and includes a gun head and a pin assembly disposed within the gun head. The socket assembly includes a base, a socket assembly mounted within the base, and a panel housing. One end of the panel housing has a socket hole, and the other end is connected to the gun head assembly. The adapter is characterized by a circuit board, a base, and a waterproof component disposed between the gun head assembly and the panel housing. The socket assembly is disposed on the side of the base facing the socket hole. The circuit board is mounted between the gun head assembly and the base and is electrically connected to the pin assembly. The pin assembly passes through the circuit board and a first through hole in the base and is electrically connected to the socket assembly. The waterproof component is disposed between the base and the socket hole for sealing the pins of external electrical appliances.

[0006] Furthermore, the pin assembly includes a power pin and a CC control pin. The power pin includes an L pin, an N pin, and a PE pin. The socket assembly is correspondingly provided with an L socket, an N socket, and a PE socket. The CC control pin is electrically connected to the circuit board.

[0007] Furthermore, the circuit board portion extends through the base into the socket assembly.

[0008] Furthermore, the circuit board is equipped with a micro switch and a detection resistor. The micro switch is used to manually trigger the power supply of the power gun converter, and the detection resistor is connected between the CC control pin and the PE socket to detect the connection status with the vehicle system.

[0009] Furthermore, the circuit board is also equipped with a temperature control element, which is used to sense the internal temperature of the socket assembly and cut off the circuit when the temperature exceeds a temperature threshold.

[0010] Furthermore, the circuit board includes a second circuit board and a first circuit board that are vertically connected, with the second circuit board extending into the socket assembly and the first circuit board located between the base and the gun head.

[0011] Furthermore, the micro switch and the sensing resistor are mounted on the second circuit board.

[0012] Furthermore, the temperature control element is disposed on the first circuit board, and the temperature control element extends into the socket groove through a second through hole opened on the base.

[0013] Furthermore, the base has a socket groove on the side facing the socket, the socket groove includes an L-pole socket mounting groove, an N-pole socket mounting groove and a PE-pole socket mounting groove, the base also includes a fixing groove, the fixing groove is located on the side of the socket groove near the panel shell, and the second circuit board extends into the socket assembly through the fixing groove.

[0014] Furthermore, the first circuit board is provided with pin soldering holes, and each pin soldering hole corresponds to a pin assembly. The pin assemblies pass through the pin soldering holes and are electrically connected to the first circuit board. The CC control pin passes through the pin soldering holes and is located between the first circuit board and the base.

[0015] Furthermore, the micro switch is located on the side of the second circuit board facing the panel housing, and the panel housing has a switch button at the position corresponding to the micro switch.

[0016] Furthermore, the waterproof component is disposed close to the socket and includes a support frame and a deformable adhesive layer. The support frame has waterproof sockets corresponding to the sockets on the panel housing, and the adhesive layer fills the waterproof sockets.

[0017] Furthermore, the adhesive layer wraps around the support frame and fills the waterproof socket. The adhesive layer inside the waterproof socket protrudes in a symmetrical double "W" shape on the opposite side walls of the waterproof socket, forming three sealing strips at both ends and the middle of the waterproof socket.

[0018] Furthermore, the waterproof component is provided with a limiting hole, and a corresponding mounting post is provided on the inner side of the panel housing. The waterproof component is limited and installed on the mounting post on the inner side of the panel housing through the limiting hole.

[0019] Furthermore, the outer wall of the gun head is provided with an annular groove. The annular groove is located at the connection between the gun head assembly and the panel housing and surrounds the outer wall of the gun head. A waterproof ring is set in the annular groove. When the gun head assembly is connected to the panel housing, the waterproof ring is in close contact with the inner wall of the panel housing.

[0020] Furthermore, the PE pole socket is located in the middle of the socket groove, and the L pole socket and N pole socket are symmetrically arranged on both sides of the PE pole socket. The L pole socket, N pole socket and PE pole socket include a power socket and a pin socket connected by the main connecting arm. The power socket is used to connect with the plug of an external electrical appliance, and the pin socket is elastically clamped to the power plug.

[0021] Furthermore, the L-pole socket, N-pole socket, and PE-pole socket unfold into an "I" shape, with power sockets or pin sockets on both sides of the "I" shape, connected by the main connecting arm.

[0022] Furthermore, the power sockets of the L-pole and N-pole sockets are U-shaped elastic structures distributed on both sides of one end of the main connecting arm, and the power socket of the PE-pole socket is bent upwards towards the main connecting arm; the pin sockets of the L-pole, N-pole, and PE-pole sockets include an observation hole opened at the other end of the main connecting arm, a first connecting arm is provided on the side of the observation hole away from the power socket, and second connecting arms are provided on both sides of the first connecting arm. The two second connecting arms extend away from the first connecting arm to form an arc-shaped connecting arm, and are folded in the same direction in the order of arc-shaped connecting arm, second connecting arm, and first connecting arm to form a pin socket. The arc-shaped connecting arm is located below the observation hole and is used to clamp the power pin.

[0023] Furthermore, it also includes a protective door assembly, which is disposed between the insert assembly and the waterproof assembly. The base has a protective door mounting groove facing the protective door assembly, and the protective door assembly has an insert limiting post facing the base. The protective door assembly is limited and installed in the protective door mounting groove, and the insert limiting post extends into the insert mounting groove to limit the insert assembly.

[0024] Furthermore, the L-pole sleeve, N-pole sleeve, and PE-pole sleeve each have an observation hole at one end of the main connecting arm. The sleeve limiting posts include an L-pole limit post, an N-pole limit post, a first PE-pole limiting post, and a second PE-pole limiting post. The L-pole limit post and the N-pole limit post are located above the main connecting arm of the L-pole sleeve and the N-pole sleeve, the first PE-pole limiting post is located above the observation hole of the PE-pole sleeve, and the second PE-pole limiting post is located above the end of the main connecting arm of the PE-pole sleeve away from the observation hole.

[0025] Furthermore, the gun head assembly and the socket assembly are connected by a snap-fit ​​connection. The gun head assembly is provided with a mounting clip arm for fixed connection with the panel housing. The mounting clip arm is located at the connection between the gun head assembly and the socket assembly and is symmetrically distributed about the center of the gun head assembly.

[0026] Furthermore, the gun head assembly has an annular anti-collision structure on the inner side of the mounting buckle arm. The shape of the annular anti-collision structure is the same as the radial cross section of the gun head. An integrally formed gun head limiting post is provided on it. The gun head limiting post extends into the limiting post groove correspondingly provided on the inner wall of the panel housing.

[0027] Furthermore, the L-pole pin, N-pole pin, and PE-pole pin are provided with a first annular limiting step at the end facing the socket, and the first annular limiting step abuts against the bottom surface of the base.

[0028] Furthermore, a second annular limiting step is provided at the connection point between the gun head and the pin assembly facing the socket assembly. The first annular limiting step and the second annular limiting step are coaxially arranged, and the second annular limiting step abuts against the bottom surface of the first circuit board.

[0029] Furthermore, the pin assembly is integrally injection molded with the gun head.

[0030] Furthermore, the height of the power gun converter is 75-85mm, the radial cross-sectional diameter of the socket assembly is 58-65mm, the height of the socket assembly is 43-48mm, and the height of the gun head 201 is 32-37mm.

[0031] The power gun converter of this utility model adopts modular assembly, and each component can be designed and manufactured independently, saving production costs, reducing assembly difficulty, and improving assembly efficiency. At the same time, the circuit board is placed between the gun head assembly and the socket assembly, which simplifies design and maintenance, facilitates future expansion, and enhances compatibility. The waterproof component separates the internal and external environments of the socket assembly. When the plug of an electrical appliance is inserted into the socket, it is first sealed by the waterproof component to ensure that the part in contact with the socket assembly is dry, extending the service life of the socket assembly and ensuring electrical safety.

[0032] In addition, the circuit board consists of a first circuit board and a second circuit board arranged perpendicularly to each other. This structure effectively utilizes the space between the gun head assembly and the socket assembly, as well as the internal space of the socket assembly, while maximizing the area of ​​the circuit board to facilitate modular design and enhance scalability, making production and upgrade maintenance easier and extending the product's service life.

[0033] In addition, the symmetrical double "W" shaped rubber layer overcomes the problem of high friction when inserting and removing the pin due to complete filling, avoids excessive deformation of the rubber layer inside the waterproof socket to ensure the sealing effect, and extends the service life of the waterproof component. Furthermore, the three-layer sealing structure further ensures the sealing effect after the pin is inserted, prevents corrosion of internal components, and ensures electrical safety.

[0034] In addition, during assembly, the power pins and pin sockets are connected by a plug-in method, which reduces the difficulty of assembly and improves the assembly efficiency. An observation hole is set above the connection point to facilitate the confirmation of the connection position and status during assembly, prevent incorrect operation, and improve the product safety performance.

[0035] In addition, multiple positioning and limiting structures are set at the connection between the socket assembly and the gun head assembly to effectively ensure correct connection during installation, facilitate production and assembly. The annular limiting step separates the internal structure of the socket assembly from the gun head and fixes it in the installation position to prevent the internal structure from loosening during use and enhance stability. The annular anti-collision structure set along the edge of the gun head improves the product's pressure and drop resistance.

[0036] In addition, the one-piece injection molded gun head assembly helps to simplify the production process, improve production efficiency, and reduce production costs. Attached Figure Description

[0037] Figure 1-2 This is a schematic diagram of the overall structure of the power gun converter of this utility model;

[0038] Figure 3 This is an exploded view of the structure of the power gun converter of this utility model;

[0039] Figure 4-5 This is a structural diagram of the circuit board in this utility model;

[0040] Figure 6-7 This is a schematic diagram showing the mating relationship between the circuit board and the base in this utility model;

[0041] Figure 8 This is a structural diagram of the waterproof component in this utility model;

[0042] Figure 9 This is a cross-sectional view of the waterproof component in this utility model;

[0043] Figure 10-11 This is a structural diagram of the base in this utility model;

[0044] Figure 12-13 This is a structural diagram and unfolded view of the L-pole socket and N-pole socket in this utility model;

[0045] Figure 14-15 This is a structural diagram and unfolded view of the PE electrode socket in this utility model;

[0046] Figure 16 This is a schematic diagram showing the mating relationship between the power pin and the socket assembly in this utility model;

[0047] Figure 17-18 This is a structural diagram of the protective door assembly in this utility model;

[0048] Figures 19-20This is a schematic diagram showing the cooperation relationship between the insert limiting post and the insert assembly in this utility model;

[0049] Figure 21-22 This is a structural diagram of the connection between the gun head assembly and the socket assembly in this utility model;

[0050] Figure 23 This is an internal structural diagram of the panel shell in this utility model;

[0051] Figures 24a-24e This is a schematic diagram of the assembly relationship of the power gun converter of this utility model;

[0052] Figure label:

[0053] 1-Socket assembly; 101-Panel housing; 102-Switch button; 103-Snap fastener; 2-Head assembly; 201-Head; 202-Pin assembly; 2021-Power pin; 2023-First annular limiting step; 2024-Second annular limiting step; 203-Mounting clip arm; 204-Annular anti-collision structure; 2041-Head limiting post; 2042-Limiting post groove; 205-Annular groove; 206-Waterproof ring; 3-Circuit board; 301-First circuit board; 3011-Temperature control element; 3012-Pin soldering hole; 302-Second circuit board; 3021-Micro switch; 3022-Power indicator light; 4-Base; 401-Socket groove; 402-First through hole ; 403-Second through hole; 404-Fixing groove; 405-Protective door mounting groove; 4051-Right angle mounting groove; 5-Plug assembly; 501-Main connecting arm; 5011-Observation hole; 502-Power plug; 503-Pin plug; 5031-First connecting arm; 5032-Second connecting arm; 5033-Arc-shaped connecting arm; 6-Protective door; 601-Plug limit post; 6011-First limit post; 6012-Second limit post; 602-Slider mounting groove; 603-Protective door slider; 604-Spring; 7-Waterproof assembly; 701-Support frame; 7011-Waterproof insertion hole; 702-Coating layer; 703-Coating positioning post; 704-Limiting hole; 705-Mounting post; Detailed Implementation

[0054] The following embodiments, in conjunction with the accompanying drawings, further illustrate the specific implementation of the power take-off converter for new energy vehicles according to this utility model. The power take-off converter of this utility model is not limited to the descriptions in the following embodiments.

[0055] like Figure 1-3As shown, the power adapter in this embodiment includes a fixedly connected gun head assembly 2 and a socket assembly 1. The gun head assembly 2 is used to connect to the vehicle for power, and the socket assembly 1 is used to connect to external electrical appliances. The gun head assembly 2 includes a gun head 201 whose shape is adapted to the vehicle's charging port and a pin assembly 202 disposed in the gun head 201. The pin assembly 202 passes through the gun head 201, with one end of the pin assembly 202 facing away from the socket assembly 1 connected to the vehicle for power, and the other end extending into the adapter for internal circuit conduction. The socket assembly 1 includes a base 4, a socket assembly 5 installed in the base 4, and a panel housing 101. One end of the panel housing 101 is provided with a socket, and the other end is connected to the gun head assembly 2. The socket is used for inserting external electrical appliances for power. In use, the end with the gun head assembly 2 is connected to the vehicle's charging port, and the plug of the external electrical appliance is inserted into the socket assembly 1 to complete the power supply.

[0056] Furthermore, such as Figure 3-5 As shown, the power gun converter in this embodiment also includes a circuit board 3 and a waterproof component 7. The circuit board 3, the base 4, and the waterproof component 7 are disposed between the gun head assembly 2 and the panel housing 101. The circuit board 3 is equipped with a current controller for controlling the on / off state of the internal current under different conditions. The current controller can be a resistor, microcontroller, switch, relay, or other components that can control the circuit to be connected or disconnected. The circuit board 3 is used to realize functions including but not limited to power control and safety protection. Different modules such as communication and fault diagnosis can be integrated on the circuit board 3 according to actual production and use. All of the above functions can be realized using existing technologies. In addition, other auxiliary components can be further added to the circuit board 3 to realize different functions.

[0057] The improvement of this embodiment is that, Figure 3-7 As shown, the circuit board 3 is installed between the gun head assembly 2 and the base 4 and is electrically connected to the pin assembly 202. During assembly, the end of the pin assembly 202 facing the socket assembly 1 extends into the socket assembly 1 through the circuit board 3. After installation, the pin assembly 202 is electrically connected to the circuit board 3 and the socket assembly 5 located in the socket assembly 1. In this way, the circuit board 3 is placed between the gun head assembly 2 and the socket assembly 1, which simplifies the design and maintenance, facilitates future expansion, and enhances compatibility.

[0058] like Figure 3 , 8 As shown, the waterproof component 7 is disposed between the base 4 and the socket. The waterproof component 7 separates the internal and external environments of the socket assembly 1. When the plug of the appliance is inserted into the socket, it is first sealed by the waterproof component 7 to ensure that the part in contact with the plug assembly 5 is dry, thereby extending the service life of the socket assembly 1 and ensuring electrical safety.

[0059] like Figure 3 , 10As shown in Figure -11, the base 4 and the panel housing 101 together form the internal space of the socket assembly 1. The socket assembly 5 is disposed on the side of the base 4 facing the socket hole. The pin assembly 202 passes through the base 4 and extends into the interior of the socket assembly 1 to be electrically connected to the socket assembly 5. Specifically, the base 4 has a socket groove 401 on the side facing the socket hole. The socket assembly 5 is fixedly installed in the socket groove 401. The bottom of the base 4 has a first through hole 402. The first through hole 402 is opened in the socket groove 401. The pin assembly 202 passes through the first through hole 402 to be electrically connected to the socket assembly 5.

[0060] Preferably, the circuit board 3 extends through the base 4 into the socket assembly 1 to facilitate the aforementioned power control and safety protection functions. Of course, the entire circuit board 3 can also be located between the base 4 and the gun head assembly 2; both are within the scope of this application.

[0061] Furthermore, such as Figure 1 , 10 As shown in Figures 11 and 16, the pin assembly 202 includes a power pin 2021 and a CC control pin. The two ends of the power pin 2021 are electrically connected to the vehicle electrode and the socket assembly 5 respectively to conduct the circuit. It includes an L-pin, an N-pin, and a PE-pin. The socket assembly 5 is correspondingly provided with an L-sleeve, an N-sleeve, and a PE-sleeve. The L-sleeve, N-sleeve, and PE-sleeve are respectively connected to the power pin 2021 of the same polarity. The CC control pin passes through the gun head 201, and its two ends are electrically connected to the vehicle and the circuit board 3 respectively. The circuit board 3 is provided with a detection resistor, which is connected between the CC control pin and the PE-sleeve to confirm the connection status between the power gun converter and the vehicle. In addition, depending on the actual situation, the CC control pin may also have other functions applied in standards and / or existing technologies.

[0062] Furthermore, the socket groove 401 includes an L-pole socket mounting groove, an N-pole socket mounting groove, and a PE-pole socket mounting groove. The L-pole socket, N-pole socket, and PE-pole socket are respectively installed in their corresponding same-pole sockets. The L-pole socket and N-pole socket are symmetrically arranged, and the PE-pole socket is located between the L-pole socket and the N-pole socket. The base 4 also includes a second through hole 403 and a fixing groove 404. The second through hole 403 is formed in the socket groove 401 and located between the L-pole socket and the N-pole socket. The fixing groove 404 is located on the side of the socket groove 401 near the panel housing 101. The circuit board 3 partially passes through the second through hole 403 and the fixing groove 404. 04. The socket assembly 1 is inserted into the socket. Specifically, in this embodiment, the PE pole socket mounting groove is flush with one end of the L pole socket mounting groove and the N pole socket mounting groove. The other ends of the L pole socket mounting groove, the N pole socket mounting groove and the PE pole socket mounting groove form a triangular space. The second through hole 403 is opened on the bottom surface of the base 4 in the triangular space. The cross-section of the panel shell 101 is approximately circular, and the side of it near the PE pole socket mounting groove is a plane. The fixing groove 404 is set on the side of the PE pole socket mounting groove facing the plane, including a limiting structure set along the side wall of the socket groove 401 and a notch opened at the bottom of the base for the circuit board 3 to extend into.

[0063] like Figure 4-5 As shown, the circuit board 3 includes a first circuit board 301 and a second circuit board 302. The first circuit board 301 is used to integrate the aforementioned functional modules, and the second circuit board is mainly used to control the circuit switch. The first circuit board 301 is located between the base 4 and the gun head 201. The second circuit board 302 extends into the socket assembly 1 along the fixing groove 404. The first circuit board 301 and the second circuit board 302 are connected by soldering and placed at 90° to each other. To ensure smooth installation of the circuit board 3, the first circuit board 301 is preferably arranged parallel to the bottom surface of the base 4 so that the second circuit board 302 can extend vertically into the socket assembly 1.

[0064] Furthermore, the current controller includes a micro switch 3021, a sensing resistor, a temperature control element 3011, a power indicator light 3022, a ballast diode, and other auxiliary functional devices. The micro switch 3021 is used to manually trigger and control the power supply of the power gun converter. The sensing resistor and the micro switch 3021 are connected between the CC control pin and the PE terminal socket to confirm the connection status of the power gun converter and the vehicle.

[0065] Preferably, the micro switch 3021 and the power indicator light 3022 are disposed on the second circuit board 302, and the detection resistor is disposed on the first circuit board 301 or the second circuit board 302. In one embodiment, the micro switch 3021 is connected between the CC control pin and the PE electrode socket. When the power gun converter is plugged into the new energy vehicle, closing the micro switch 3021 connects the circuit between the CC control pin and the PE electrode, and opening the micro switch 3021 disconnects the circuit between the CC control pin and the PE electrode. After receiving the detection command, the vehicle system issues a discharge or non-discharge command, and the power indicator light 3022 lights up and / or turns off depending on the circuit connection. In this embodiment, the micro switch 3021 and the detection resistor are connected in series between the CC control pin and the PE electrode socket, and the power gun converter socket can only obtain power when the vehicle system issues a discharge command when the micro switch 3021 is closed. The power indicator light 3022 can also be connected in series between the CC control pin and the PE electrode socket. In another embodiment, an electronic switch can be connected in series between the CC and PE terminals. The control terminal of the electronic switch is connected to a microcontroller, which is connected to the micro switch 3021. The microcontroller receives signals indicating that the micro switch 3021 is closed or open, and thus controls the electronic switch to close or open. The electronic switch can be a MOSFET, transistor, or similar device. Obviously, in other embodiments, the micro switch 3021, temperature control element 3011, power indicator 3022, etc., may not be included. In another embodiment, the micro switch 3021 can also be connected in series between the L terminal pin and the L terminal socket.

[0066] The temperature control element 3011 is disposed on the first circuit board 301. The temperature control element 3011 extends through the second through hole 403 into the socket slot 401 and is electrically connected to the L-pole pin and L-pole socket or the N-pole pin and N-pole socket. It is used to sense the internal temperature of the socket assembly 1. The temperature control element 3011 includes components such as a thermistor and / or a thermal switch. When an electrical power overload occurs or the temperature exceeds a temperature threshold, the temperature control element 3011 disconnects the circuit, realizing the current disconnection function, thereby protecting electrical safety. Preferably, the temperature control element 3011 is electrically connected to the L-pole pin and L-pole socket to ensure that the circuit is disconnected immediately in the event of overheating due to an abnormal problem.

[0067] As one embodiment of the temperature control element 3011, the temperature control element 3011 includes a temperature control switch connected in series in the CC and PE detection circuits, a thermistor connected to the L pole pin or L pole socket, the thermistor being connected to the microcontroller and outputting a signal to the microcontroller, the microcontroller detecting the temperature based on the thermistor, and when the temperature exceeds the temperature threshold, the microcontroller controls the temperature control switch to open, at which time the vehicle system cannot receive the detection command and stops discharging.

[0068] As one embodiment of the temperature control element 3011, the temperature control element 3011 includes a thermal switch, which is connected in series between the L-pin and the L-socket or between the N-pin and the N-socket. When the temperature exceeds the temperature threshold, the temperature control element 3011 disconnects the circuit to disconnect the current.

[0069] Furthermore, the first circuit board 301 is also provided with pin soldering holes 3012, which correspond one-to-one with the pin assembly 202. The pin assembly 202 passes through the pin soldering holes 3012 and is soldered and electrically connected to the first circuit board 301. Preferably, the solder connection is located on the side of the first circuit board 301 facing the base 4, which facilitates soldering during installation and desoldering during maintenance. The CC control pin is mainly used to confirm the connection status and does not need to be connected to the socket assembly 5 or external electrical appliances. Therefore, after passing through the pin soldering hole 3012, the CC control pin is preferably located between the first circuit board 301 and the base 4, which takes into account the stability of the connection and optimizes the internal space. Of course, the above position can be changed arbitrarily on the premise that the two ends of the CC control pin are electrically connected to the vehicle and the circuit board 3. Only the preferred embodiment is given here.

[0070] Preferably, the micro switch 3021 is disposed on the side of the second circuit board 302 facing the panel housing 101. The panel housing 101 is provided with a switch button 102 at a position corresponding to the micro switch 3021. The switch button 102 is movably connected to the panel housing 101. Pressing the switch button 102 triggers the micro switch 3021, thereby controlling the circuit on / off. In this embodiment, the second circuit board 302 is disposed on the side facing the plane of the panel housing 101. The switch button 102 is disposed in the middle of this plane. The micro switch 3021 is disposed at a corresponding position on the second circuit board 302. The power indicator light 3022 is disposed above the micro switch 3021. The panel housing 101 is provided with indicator light observation holes corresponding to the power indicator light 3022. In this way, the overall shape of the power gun converter is more suitable for holding and operation. The flat design of the panel housing 101 helps to reduce the travel distance of the switch button 102 towards the micro switch 3021, ensuring the sealing effect inside the product.

[0071] The circuit board 3 in the power gun converter of this utility model consists of a first circuit board 301 and a second circuit board 302 arranged perpendicularly to each other. This structure effectively utilizes the space between the gun head assembly 2 and the socket assembly 1 as well as the internal space of the socket assembly 1, while maximizing the area of ​​the circuit board 3 to facilitate modular design and enhance scalability, making it easier to produce, upgrade and maintain, and extend the product's service life.

[0072] like Figure 8 , 24dAs shown, an embodiment of a waterproof component 7 is provided. The waterproof component 7 is set close to the socket to obtain a better sealing effect. The waterproof component 7 includes a support frame 701 and a deformable adhesive layer 702. The support frame 701 serves as the structural support of the waterproof component 7. A waterproof socket 7011 is opened on it corresponding to the socket of the panel housing 101. The adhesive layer 702 fills the waterproof socket 7011 to separate the internal and external environments of the socket component 1. It can be understood that the adhesive layer 702 filled in the waterproof socket 7011 has a gap for the pin to pass through. In the original state, the gap is closed and sealed, and dust, water, etc. cannot pass through the gap. After the adhesive layer 702 deforms with the insertion of the pin, the gap opens and seals the pin. The adhesive layer 702 can be a waterproof soft rubber or sealant of different materials in the prior art.

[0073] Furthermore, the overmolding layer 702 wraps around the support frame 701 and fills the waterproof insertion hole 7011. The support frame 701 is provided with at least one overmolding positioning post 703, used to ensure that the overmolding layer 702 completely wraps around the support frame 701 while being injection molded. In this embodiment, each of the four corners of the support frame 701 is provided with an overmolding positioning post 703 to prevent unevenness of the overmolding layer 702 formed during injection molding from affecting the sealing effect. Preferably, the overmolding layer 702 inside the waterproof insertion hole 7011 protrudes symmetrically in a double "W" shape on the opposite side walls of the waterproof insertion hole 7011, forming three sealing strips at both ends and the middle of the waterproof insertion hole 7011 (see...). Figure 9 In other words, after the pin enters, the rubber layer 702 inside the waterproof socket 7011 wraps the pin in a symmetrical double "W" shape, forming three sealing strips at both ends and the middle of the waterproof socket 7011. That is, when the pin enters, the rubber layer 702 forms a sealing strip at the end of the waterproof socket 7011 near the external environment, the middle section of the waterproof socket 7011, and the end of the waterproof socket 7011 near the inside of the socket assembly 1, completely wrapping the pin. A "V" shaped notch is provided between each pair of adjacent sealing strips to allow the rubber layer 702 to deform and reduce the friction when the pin moves. Obviously, as a deteriorated implementation, the number of sealing strips can be increased or decreased, and the notch between adjacent sealing strips can be omitted or other shapes of notches can be used. Only the preferred implementation is given here.

[0074] The aforementioned symmetrical double "W" shaped encapsulation layer 702 overcomes the problem of high friction during pin insertion and removal caused by complete filling, avoids excessive deformation of the encapsulation layer 702 inside the waterproof socket 7011 to ensure sealing effect, and extends the service life of the waterproof component 7. In addition, the three-layer sealing structure further ensures the sealing effect after the pin is inserted, prevents corrosion of internal components, and ensures electrical safety.

[0075] Furthermore, the waterproof component 7 is provided with a limiting hole 704, and a mounting post 705 is correspondingly provided on the inner side of the panel housing 101. The waterproof component 7 is limited and installed on the mounting post 705 on the inner side of the panel housing 101 through the limiting hole 704. Preferably, there are three limiting holes 704, which are distributed in a triangle on the waterproof component 7 to make the connection between the waterproof component 7 and the panel housing 101 more stable. The limiting hole 704 passes through the support frame 701 and the adhesive layer 702. After installation, the waterproof insertion hole 7011 corresponds to the insertion hole on the panel housing 101. The adhesive layer 702 of the waterproof component 7 facing the insertion hole adheres to the inner wall of the panel housing 101, completely sealing the insertion hole position.

[0076] like Figure 3 , 24c As shown, a waterproof ring 206 is also provided at the connection between the socket assembly 1 and the gun head assembly 2. Specifically, the outer wall of the gun head 201 is provided with an annular groove 205. The annular groove 205 is located at the connection between the gun head assembly 2 and the panel housing 101 and surrounds the outer wall of the gun head 201. The waterproof ring 206 is disposed in the annular groove 205. When the gun head assembly 2 is connected to the panel housing 101, the waterproof ring 206 is in close contact with the inner wall of the panel housing 101, further enhancing the sealing of the connection.

[0077] like Figure 1 , 6 As shown in -7 and 12-15, the PE pole pin is located at the center of the gun head assembly 2. The L pole pin and N pole pin are symmetrically arranged on both sides of the PE pole pin. Correspondingly, the PE pole sleeve is located in the middle of the sleeve groove 401. The L pole sleeve and N pole sleeve are symmetrically arranged on both sides of the PE pole sleeve. The L pole sleeve, N pole sleeve and PE pole sleeve include a power socket 502 and a pin socket 503 connected by the main connecting arm 501. The power socket 502 is used to connect with the plug of an external electrical appliance. The pin socket 503 is elastically clamped and connected to the power socket 2021. In the above embodiments, as a preferred solution, the socket assembly 1 includes a set of two-phase sockets and a set of three-phase sockets. The power socket 502 of the socket assembly 5 corresponds to the sockets to adapt to the different specifications of the external electrical appliances. It is understood that without changing the connection relationship between the pin assembly 202 and the socket assembly 5, the shape and number of the sockets and the power socket 502 can be changed to suit different application scenarios.

[0078] Preferred, such as Figure 12-16 As shown, the L-pole sleeve, N-pole sleeve, and PE-pole sleeve unfold into an "I" shape. Figure 13 This is a structural diagram and an unfolded view of the L-pole socket and N-pole socket in this utility model. Figure 15This is a structural diagram and unfolded view of the PE electrode socket in this utility model. The two ends of the "I" shape are a power socket 502 or a pin socket 503, which are connected to each other by the main connecting arm 501. The "I" shaped socket is easy to process and assemble. After being bent into a socket, it has a larger contact area, which enhances the stability and reliability of the connection.

[0079] Specifically, in the bent state, the power sockets 502 of the L-pole and N-pole sockets are U-shaped elastic structures distributed on both sides of one end of the main connecting arm 501, as shown in the figure. The power sockets 502 on both sides of the main connecting arm 501 of the L-pole and N-pole sockets correspond to the L-pole and N-pole of the two-phase plug and the three-phase plug, respectively. The power socket 502 of the PE-pole socket is bent towards the top of the main connecting arm 501. In the unfolded state, the power socket 502 is located at one end of the "I" shape. Preferably, to ensure electrical safety, the power socket 502 of the PE-pole socket is located on the side of the two-phase sockets of the L-pole and N-pole sockets, so that the two-phase plug and the three-phase plug cannot be inserted at the same time, ensuring that only one external electrical appliance is connected to the circuit at a time.

[0080] Furthermore, the L-pole socket, N-pole socket, and PE-pole socket's pin socket 503 include an observation hole 5011 at the other end of the main connecting arm 501. The observation hole 5011 is used during installation to observe the position of the power pin 2021 and its connection to the power socket 502. In the unfolded state, a first connecting arm 5031 is located on the side of the observation hole 5011 away from the power socket 502. Second connecting arms 5032 are located on both sides of the first connecting arm 5031. The two second connecting arms 5032 extend away from the first connecting arm 5031 to form an arc-shaped connecting arm 5033. The first connecting arm 5031, the second connecting arm 5032, and the arc-shaped connecting arm 5033 extend along... The "I"-shaped structure is distributed at one end. During bending, the arc-shaped connecting arm 5033, the second connecting arm 5032, and the first connecting arm 5031 are folded in the same direction to form the pin sleeve 503. In this embodiment, the arc-shaped connecting arms 5033 at both ends are first folded to be close to the second connecting arm 5032, forming two semi-arc contact surfaces at both ends. Then, the second connecting arm 5032 is folded in the same direction by about 90°, so that the two semi-arc contact surfaces come together to form a clamping part for clamping the power pin 2021. Then, the first connecting arm 5031 is folded in the same direction by about 90°. At this time, the arc-shaped connecting arm 5033 is located below the observation hole 5011 for clamping the power pin 2021.

[0081] In the assembly of the power gun converter of this utility model, the power pin 2021 and the pin socket 503 adopt a plug-in connection, which reduces the assembly difficulty and improves the assembly efficiency. An observation hole 5011 is provided above the connection to facilitate the confirmation of the connection position and status during assembly, prevent incorrect operation, and improve the product safety performance.

[0082] like Figure 3 , 17 As shown in Figure -20, an embodiment of a protective door assembly 6 is provided. The protective door assembly 6 is disposed between the insert assembly 5 and the waterproof assembly 7 to prevent accidental insertion of conductors and to prevent electric shock accidents. The base 4 is provided with a protective door mounting groove 405 facing the protective door assembly 6 (see Figure 20). Figure 10-11 The protective door assembly 6 is installed in the protective door mounting groove 405. The protective door assembly 6 has a sleeve limiting post 601 facing the base 4. The sleeve limiting post 601 extends into the sleeve mounting groove and abuts against the sleeve assembly 5, limiting the sleeve assembly 5 within the sleeve groove 401 to prevent misalignment during use. Specifically, the sleeve limiting post 601 includes an L-limit post, an N-limit post, a first PE pole limiting post 6011, and a second PE pole limiting post 6012, corresponding to each pole of the sleeve assembly 5. The L-limit post and N-limit post are located above the main connecting arm 501 of the L-pole sleeve and N-pole sleeve, respectively, with their ends abutting against the main connecting arm of the L-pole sleeve and N-pole sleeve, thus limiting the L-pole sleeve assembly 5. The N-pole sleeve and the N-pole sleeve are pressed into the sleeve groove 401. The first limiting post 6011 of the PE pole is located above the observation hole 5011 of the PE pole sleeve, and the second limiting post 6012 of the PE pole is located above the end of the main connecting arm 501 of the PE pole sleeve away from the observation hole 5011. The first limiting post 6011 and the second limiting post 6012 of the PE pole abut against the observation hole 5011 and the end of the main connecting arm 501 of the PE pole sleeve, respectively, pressing the PE pole sleeve into the sleeve groove 401. Preferably, the first limiting post 6011 is cylindrical and abuts against the observation hole 5011 to prevent the first limiting post 6011 from extending into the observation hole 5011 due to vibration or other reasons, thus affecting the limiting effect.

[0083] like Figure 10-11 As shown in 17-18 and 24c, the protective door mounting groove 405 includes four right-angle mounting grooves 4051. The openings of the right-angle mounting grooves 4051 face the center of the base 4. The protective door assembly 6 is limited and installed between the four right-angle mounting grooves 4051. Specifically, the protective door assembly 6 is rectangular in shape. The four right-angle mounting grooves 4051 enclose and form a rectangular protective door mounting groove 405, and each right-angle mounting groove 4051 corresponds to one corner of the protective door assembly 6. The right-angle mounting grooves 4051 extend upward from the bottom of the base 4 to a height higher than the insert groove 401. The four corners of the protective door assembly 6 are limited and installed in the right-angle mounting grooves 4051, and its bottom surface abuts against the top of the insert groove 401.

[0084] Furthermore, the protective door assembly 6 has a sliding plate mounting groove 602 on the other side opposite to the insert sleeve limiting post 601. The bottom of the sliding plate mounting groove 602 has a protective door insertion hole corresponding to the insertion hole. The protective door sliding plate 603 is installed in the sliding plate mounting groove 602 and covers the protective door insertion hole. The middle part of the protective door sliding plate 603 is provided with a spring 604 along the sliding plate movement direction. Specifically, the two ends of the spring 604 are respectively connected to the sliding plate mounting groove 602 and the protective door sliding plate 603. The position of the protective door sliding plate 603 corresponding to the L and N pole protective door insertion holes is an inclined surface and covers the protective door insertion hole. When the pin is inserted, it abuts against the inclined surface. The protective door sliding plate 603 slides horizontally along the inclined surface and compresses / stretches the spring 604. When the protective door insertion hole is exposed, the pin enters the socket assembly 1. After the pin is pulled out, the spring 604 is released / contracted, so that the protective door sliding plate 603 is reset and covers the protective door insertion hole.

[0085] like Figure 21-23 As shown, the specific structure at the connection between the socket assembly 1 and the gun head assembly 2 is as follows: the gun head assembly 2 and the socket assembly 1 are connected by a snap-fit. The gun head assembly 2 is provided with a mounting snap-fit ​​arm 203 for fixed connection with the panel housing 101. The mounting snap-fit ​​arm 203 is located at the connection between the gun head assembly 2 and the socket assembly 1. Specifically, the mounting snap-fit ​​arm 203 is located at the outermost part of the gun head 201 and extends towards the socket assembly 1. A slot is formed in the middle of the arm. A corresponding snap-fit ​​103 is provided on the inner wall of the panel housing 101 to cooperate with the mounting snap-fit ​​arm 203. The snap-fit ​​103 has an inclined surface on one side facing the gun head assembly 2 and a flat surface on the other side. During connection, the mounting snap-fit ​​arm 203 slides along the inclined surface. After installation, the slot... The inner wall abuts against the plane side of the buckle 103. To ensure the reliability of the connection between the gun head assembly 2 and the socket assembly 1, the mounting buckle arms 203 are preferably arranged in pairs. In this embodiment, there are two pairs of four mounting buckle arms 203, which are symmetrically distributed about the center of the gun head assembly 2. Of course, the connection method between the gun head assembly 2 and the socket assembly 1 is not limited to the method described in this embodiment. Other existing fixing methods can also be used to replace the buckle arm-buckle. It is understood that when the waterproof ring 206 is used together with the buckle arm-buckle structure in this embodiment, the mounting buckle arms 203 and the waterproof ring 206 are set separately. In this embodiment, the annular groove 205 is located below the mounting buckle arm 203.

[0086] Furthermore, the gun head assembly 2 is provided with an annular anti-collision structure 204 on the inner side of the mounting buckle arm 203. The shape of the annular anti-collision structure 204 is the same as the radial cross-section of the gun head 201. That is, the annular anti-collision structure 204 is set along the edge of the gun head 201 and its radius is smaller than the cross-sectional radius of the gun head 201. The mounting buckle arm 203 is set on the outer side of the annular anti-collision structure. The annular anti-collision structure 204 is integrally provided with a gun head limiting post 2041. The inner wall of the panel housing 101 is provided with a corresponding limiting post groove 2042. The gun head limiting post 2041 and the limiting post groove 2042 are used for positioning when the panel housing 101 and the gun head 201 are connected. When the gun head limiting post 2041 extends into the limiting post groove 2042, it ensures that the connection direction and position of the two are correct. The number of gun head limiting posts 2041 and limiting post grooves 2042 is not limited. In this embodiment, there are three sets of triangular distribution.

[0087] The L-pin, N-pin, and PE-pin are provided with a first annular limiting step 2023 at the end facing the socket, and a second annular limiting step 2024 is provided at the connection between the gun head 201 and the pin assembly 202. The second annular limiting step 2024 is arranged towards the socket assembly 1. The first annular limiting step 2023 and the second annular limiting step 2024 are coaxially arranged. When the socket assembly 1 and the gun head assembly 2 are connected, the first annular limiting step 2023 abuts against the bottom surface of the base 4, and the second annular limiting step 2024 abuts against the bottom surface of the first circuit board 301. Soldering is performed on the opposite side of the limiting surface to realize the electrical connection between the circuit board 3 and the pin assembly 202.

[0088] The power gun converter of this utility model has multiple positioning and limiting structures at the connection between the socket assembly 1 and the gun head assembly 2. These structures effectively ensure correct connection during installation, facilitate production and assembly, and the annular limiting step separates the internal structure of the socket assembly 1 from the gun head 201 and fixes it in the installation position to prevent the internal structure from loosening during use and enhance stability. The annular anti-collision structure 204 set along the edge of the gun head 201 improves the product's pressure and drop resistance.

[0089] Preferably, the gun head assembly 2 is integrally injection molded, and the pin assembly 202 and the gun head 201 are integrally injection molded. The L-pole pin, N-pole pin, PE-pole pin, and CC control pin are placed into the mold and integrally injection molded. After the injection molding is completed, the gun head assembly 2 is formed. The integrally injection molded gun head assembly is conducive to simplifying the production process, improving production efficiency, and reducing production costs.

[0090] Preferably, the height of the power gun converter is 75-85mm, the radial cross-sectional diameter of the socket assembly 1 is 58-65mm, the height of the socket assembly 1 is 43-48mm, and the height of the gun head 201 is 32-37mm.

[0091] This utility model also provides an assembly method for the aforementioned power gun converter, such as... Figures 24a-24e As shown, the specific steps include the following:

[0092] Step 1: Place the L-pole pin, N-pole pin, PE-pole pin, and CC control pin into the mold and use one-piece injection molding. After injection molding, the gun head assembly 2 is formed.

[0093] Step 2: Insert the circuit board 3 along the L-pin, N-pin, PE-pin, and CC control pin of the gun head assembly 2. The first circuit board 301 is attached to the second annular limiting step 2024 of the gun head assembly 2 and connected by solder.

[0094] Step 3: Insert the base 4 along the L-pole pin, N-pole pin, and PE-pole pin, and insert the circuit board 3 into the side fixing groove 404 of the base 4.

[0095] Step 4: Place the L-pole sleeve, N-pole sleeve, and PE-pole sleeve into the corresponding sleeve slots 401 of the base 4, and fully engage the pin sleeve 503 with the power pin 2021 of the gun head assembly 2. Confirm the correctness of the installation position through the observation hole 5011.

[0096] Step 5: Install the waterproof ring 206 into the annular groove 205 of the gun head 201.

[0097] Step 6: Place the protective door assembly 6 into the right-angle mounting slot 4051 of the base 4, with the top of the protective door assembly 6 flush with the top of the right-angle mounting slot 4051 of the base 4.

[0098] Step 7: Align the limiting hole 704 of the waterproof component 7 with the mounting post 705 of the panel housing 101 and install it; insert and fix the switch button 102 from the side.

[0099] Step 8: Align the side planes of the components assembled in Step 6 with those assembled in Step 7, press the components from Step 6 into place, and fasten them together to complete the assembly of the finished product.

[0100] The power-collecting gun converter of this invention adopts modular assembly, and each component can be designed and manufactured independently, saving production costs, reducing assembly difficulty, and improving assembly efficiency.

[0101] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0102] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A power-charging adapter, comprising a fixedly connected gun head assembly (2) and a socket assembly (1), wherein the gun head assembly (2) is used to connect to a vehicle for power supply, and includes a gun head (201) and a pin assembly (202) disposed within the gun head (201); the socket assembly (1) includes a base (4), a socket assembly (5) installed within the base (4), and a panel housing (101), wherein one end of the panel housing (101) is provided with a socket hole, and the other end is connected to the gun head assembly (2), characterized in that, A circuit board (3), a base (4), and a waterproof component (7) are provided between the gun head assembly (2) and the panel housing (101). The socket assembly (5) is located on the side of the base (4) facing the socket. The circuit board (3) is installed between the gun head assembly (2) and the base (4) and is electrically connected to the pin assembly (202). The pin assembly (202) passes through the circuit board (3) and the first through hole (402) opened on the base (4) and is electrically connected to the socket assembly (5). The waterproof component (7) is located between the base (4) and the socket and is used to seal the pin of the external electrical appliance.

2. The power-collecting gun converter according to claim 1, characterized in that, The pin assembly (202) includes a power pin (2021) and a CC control pin. The power pin (2021) includes an L pin, an N pin, and a PE pin. The socket assembly (5) is provided with an L socket, an N socket, and a PE socket. The CC control pin is electrically connected to the circuit board (3).

3. The power-collecting gun converter according to claim 1, characterized in that, The circuit board (3) extends through the base (4) into the socket assembly (1).

4. The power gun converter according to claim 2, characterized in that, The circuit board (3) is provided with a micro switch (3021) and a detection resistor. The micro switch (3021) is used to manually trigger the power supply of the power gun converter. The detection resistor is connected between the CC control pin and the PE socket and is used to detect the connection status with the vehicle system.

5. The power-collecting gun converter according to claim 4, characterized in that, The circuit board (3) is also provided with a temperature control element (3011), which is used to sense the internal temperature of the socket assembly (1) and cut off the circuit when the temperature exceeds the threshold.

6. The power-collecting gun converter according to claim 5, characterized in that, The circuit board (3) includes a second circuit board (302) and a first circuit board (301) connected vertically. The second circuit board (302) extends into the socket assembly (1), and the first circuit board (301) is located between the base (4) and the gun head (201).

7. The power-collecting gun converter according to claim 6, characterized in that, The micro switch (3021) and the sensing resistor are mounted on the second circuit board (302).

8. The power-collecting gun converter according to claim 7, characterized in that, The temperature control element (3011) is disposed on the first circuit board (301), and the temperature control element (3011) extends into the socket groove (401) through the second through hole (403) opened on the base (4).

9. The power-collecting gun converter according to claim 8, characterized in that, The base (4) has a socket groove (401) on the side facing the socket. The socket groove (401) includes an L-pole socket mounting groove, an N-pole socket mounting groove and a PE-pole socket mounting groove. The base (4) also includes a fixing groove (404). The fixing groove (404) is located on the side of the socket groove (401) near the panel housing (101). The second circuit board (302) passes through the fixing groove (404) and extends into the socket assembly (1).

10. The power-collecting gun converter according to claim 6, characterized in that, The first circuit board (301) is provided with a pin soldering hole (3012), and the pin soldering hole (3012) corresponds one-to-one with the pin assembly (202). The pin assembly (202) passes through the pin soldering hole (3012) and is electrically connected to the first circuit board (301). The CC control pin passes through the pin soldering hole (3012) and is located between the first circuit board (301) and the base (4).

11. The power-collecting gun converter according to claim 7, characterized in that, The micro switch (3021) is located on the side of the second circuit board (302) facing the panel housing (101), and the panel housing (101) is provided with a switch button (102) at the position corresponding to the micro switch (3021).

12. The power-collecting gun converter according to claim 1, characterized in that, The waterproof component (7) is installed close to the socket and includes a support frame (701) and a deformable adhesive layer (702). The support frame (701) has a waterproof socket (7011) corresponding to the socket of the panel shell (101), and the adhesive layer (702) fills the waterproof socket (7011).

13. The power-collecting gun converter according to claim 12, characterized in that, The adhesive layer (702) wraps around the support frame (701) and fills the waterproof socket (7011). The adhesive layer (702) inside the waterproof socket (7011) protrudes in a symmetrical double "W" shape on the opposite side walls of the waterproof socket (7011), forming three sealing strips at both ends and the middle of the waterproof socket (7011).

14. The power-collecting gun converter according to claim 13, characterized in that, The waterproof component (7) is provided with a limiting hole (704), and the inner side of the panel shell (101) is provided with a corresponding mounting post (705). The waterproof component (7) is limited and installed on the mounting post (705) on the inner side of the panel shell (101) through the limiting hole (704).

15. The power-collecting gun converter according to claim 1, characterized in that, The outer wall of the gun head (201) is provided with an annular groove (205). The annular groove (205) is located at the connection between the gun head assembly (2) and the panel shell (101) and surrounds the outer wall of the gun head (201). A waterproof ring (206) is set in the annular groove (205). When the gun head assembly (2) is connected to the panel shell (101), the waterproof ring (206) is in close contact with the inner wall of the panel shell (101).

16. The power-collecting gun converter according to claim 2, characterized in that, The PE pole socket is located in the middle of the socket groove (401). The L pole socket and N pole socket are symmetrically arranged on both sides of the PE pole socket. The L pole socket, N pole socket and PE pole socket include a power socket (502) and a pin socket (503) connected by the main connecting arm (501). The power socket (502) is used to connect with the plug of an external electrical appliance. The pin socket (503) is elastically clamped and connected to the power pin (2021).

17. The power-collecting gun converter according to claim 16, characterized in that, The L-pole socket, N-pole socket and PE-pole socket unfold into an "I" shape, with the two sides of the "I" shape being a power socket (502) or a pin socket (503), which are connected by the main connecting arm (501).

18. The power-collecting gun converter according to claim 16, characterized in that, The power sockets (502) of the L-pole and N-pole sockets are U-shaped elastic structures distributed on both sides of one end of the main connecting arm (501). The power socket (502) of the PE-pole socket is bent upwards towards the main connecting arm (501). The pin sockets (503) of the L-pole, N-pole, and PE-pole sockets include an observation hole (5011) opened at the other end of the main connecting arm (501). A first connecting arm (5031) is provided on the side of the observation hole (5011) away from the power socket (502). The first connecting arm (5031) has a second connecting arm (5032) on both sides. The two second connecting arms (5032) extend away from the first connecting arm (5031) to form an arc-shaped connecting arm (5033). The arc-shaped connecting arm (5033), the second connecting arm (5032), and the first connecting arm (5031) are folded in the same direction to form a pin sleeve (503). The arc-shaped connecting arm (5033) is located below the observation hole (5011) and is used to hold the power pin (2021).

19. The power-collecting gun converter according to claim 16, characterized in that, It also includes a protective door assembly (6), which is disposed between the insert assembly (5) and the waterproof assembly (7). The base (4) is provided with a protective door mounting groove (405) facing the protective door assembly (6), and the protective door assembly (6) is provided with an insert limiting post (601) facing the base (4). The protective door assembly (6) is limited and installed in the protective door mounting groove (405), and the insert limiting post (601) extends into the insert mounting groove to limit the insert assembly (5).

20. The power-collecting gun converter according to claim 19, characterized in that, The L-pole socket, N-pole socket, and PE-pole socket each have a pin socket (503) with an observation hole (5011) at one end of the main connecting arm (501). The socket limiting post (601) includes an L-limit post, an N-limit post, a first PE-pole limiting post (6011), and a second PE-pole limiting post (6012). The L-limit post and N-limit post are located above the main connecting arm (501) of the L-pole socket and the N-pole socket, the first PE-pole limiting post (6011) is located above the observation hole (5011) of the PE-pole socket, and the second PE-pole limiting post (6012) is located above the end of the main connecting arm (501) of the PE-pole socket away from the observation hole (5011).

21. The power-collecting gun converter according to claim 1, characterized in that, The gun head assembly (2) and the socket assembly (1) are connected by a snap-fit. The gun head assembly (2) is provided with a mounting snap-fit ​​arm (203) for fixed connection with the panel housing (101). The mounting snap-fit ​​arm (203) is located at the connection between the gun head assembly (2) and the socket assembly (1) and is symmetrically distributed about the center of the gun head assembly (2).

22. The power-collecting gun converter according to claim 21, characterized in that, The gun head assembly (2) has an annular anti-collision structure (204) on the inner side of the mounting buckle arm (203). The annular anti-collision structure (204) has the same shape as the radial section of the gun head (201). It has an integrally formed gun head limiting post (2041) on it. The gun head limiting post (2041) extends into the limiting post groove (2042) corresponding to the inner wall of the panel shell (101).

23. The power-collecting gun converter according to claim 2, characterized in that, The L-pole pin, N-pole pin and PE-pole pin are provided with a first annular limiting step (2023) at the end facing the socket, and the first annular limiting step (2023) abuts against the bottom surface of the base (4).

24. The power-collecting gun converter according to claim 23, characterized in that, A second annular limiting step (2024) is provided at the connection between the gun head (201) and the pin assembly (202) facing the socket assembly (1). The first annular limiting step (2023) and the second annular limiting step (2024) are coaxially arranged, and the second annular limiting step (2024) abuts against the bottom surface of the first circuit board (301).

25. The power-collecting gun converter according to claim 1, characterized in that, The pin assembly (202) and the gun head (201) are integrally injection molded.

26. The power-collecting gun converter according to claim 1, characterized in that, The height of the power gun converter is 75-85mm, the radial cross-sectional diameter of the socket assembly (1) is 58-65mm, the height of the socket assembly (1) is 43-48mm, and the height of the gun head (201) is 32-37mm.

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