An AC charging pile with a drawer-type input line installation box

Abstract

The present application relates to an AC charging pile with a drawer-type input line installation box, which includes an input line box, a charging pile body, a sealing assembly, and an inflation assembly. The side wall of the input line box is provided with an inlet hole for the input line to enter, and a plurality of male terminals are provided inside the box for conductive connection with the input line; the charging pile body is provided with a plug hole for the input line box to be inserted, and a female terminal matching the male terminal is provided inside the plug hole. When the input line box is inserted into the plug hole, the male terminal and the female terminal are conductively connected; the sealing assembly is composed of a sleeve, a sleeve, and a first sealing ring. The first sealing ring is pushed by rotating the sleeve to achieve sealing of the input line; the inflation assembly includes a gas tank and a control valve. When the sleeve moves, inert gas is automatically injected into the input line box. The present application has the effect of improving the convenience of charging pile installation and maintenance and enhancing the sealing performance of the charging pile.

Description

Technical Field

[0001] The present application relates to the technical field of charging pile installation, and in particular to an AC charging pile with a drawer-type input line installation box. Background Art

[0002] A charging pile is a device that provides energy replenishment for electric vehicles. Its function is similar to that of a gas pump in a gas station. It can be fixed on the ground or on the wall and installed in public buildings (charging stations, shopping malls, public parking lots, etc.) and residential parking lots. It can charge various types of electric vehicles according to the adjusted voltage and current. The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles.

[0003] The common structure of existing AC charging piles is to lock the main control, electronic control, card swiping and other functional modules into two front and rear shells, with a waterproof sealing ring between the two shells. When installing, the user needs to unscrew the screws locking the front and rear shells, open the front shell, pass the input line through the wire hole and connect it, then replace the front shell, tighten the screws, and use fireproof putty to fill the gap between the wire hole and the input line.

[0004] However, this installation step is relatively cumbersome. Non-professionals may easily damage other components due to improper operation after opening the shell, and it is difficult to ensure the sealing of the shell after installation. In addition, the fireproof mud takes a long time to solidify and the sealing effect is poor. It is difficult to remove the fireproof mud when repairing the input line later. Summary of the Invention

[0005] In order to improve the convenience of installation and maintenance of the charging pile and enhance the sealing performance of the charging pile, the present application provides an AC charging pile with a drawer-type input line installation box.

[0006] The AC charging pile with a drawer-type input line installation box provided in this application adopts the following technical solution:

[0007] An AC charging pile with a drawer-type input line installation box, comprising:

[0008] An input wire box, wherein a side wall of the input wire box is provided with a wire entry hole for input wires to enter, and a plurality of male terminals are provided in the input wire box, and the male terminals are conductively connected to the input wires;

[0009] The charging pile body has a socket for inserting an input box therein, and female terminals are provided in the socket for matching with multiple male terminals. The female terminals are used to connect to an external power source to supply power to the charging pile body. When the male terminal is inserted into the socket, the female terminal is conductively connected to the male terminal.

[0010] A sealing assembly, comprising a sleeve, a sleeve, and a first sealing ring, wherein the sleeve is arranged on the outside of the input line box near the wire entry hole, the sleeve is used to be sleeved on the outside of the input line, the first sealing ring can be elastically sleeved on the sleeve, the sleeve is sleeved on the sleeve and is threadedly connected to the sleeve, and the sleeve abuts the side of the first sealing ring away from the wire entry hole; when the sleeve is rotated to move toward the wire entry hole, the sleeve can push the first sealing ring to slide on the sleeve and disengage from the sleeve, so that the inner wall of the first sealing ring is in sealing contact with the outer wall of the input line, and the side of the first sealing ring away from the sleeve covers the wire entry hole and is in sealing contact with the outer wall of the input line box to form a seal for the wire entry hole;

[0011] An inflation component includes a gas tank and a control valve. A gas supply hole is provided on the input line box. The gas tank is arranged on the side wall of the input line box and is filled with inert gas. The control valve connects the gas tank and the gas supply hole. When the sleeve moves toward the side of the inlet hole, the control valve can be opened synchronously to allow the gas tank to input inert gas into the input line box.

[0012] By adopting the above technical solution, the installation and maintenance steps of the charging pile are simplified, and the overall sealing performance of the charging pile is enhanced; the design of the input wire box allows it to be pulled out from the charging pile body like a drawer, which is convenient for users to connect the input wire to the male terminal, avoiding the complicated steps of opening the shell required by the traditional method, and reducing the risk of misoperation by non-professionals; the sleeve, first sealing ring and sleeve in the sealing assembly work together. When the sleeve is tightened, the first sealing ring can fit tightly to the outer wall of the input wire and the edge of the wire inlet hole, effectively preventing moisture and dust from entering, and improving the dust and water proof ability of the charging pile; the inflation assembly can automatically open the control valve when the sleeve moves toward the wire inlet hole, and inject inert gas into the input wire box, further isolating it from external moisture and corrosive substances, extending the service life of the equipment and ensuring electrical safety.

[0013] Optionally, the inflation component also includes a limit sleeve and a pressure plate, and the control valve adopts an aerosol valve; the limit sleeve is arranged on the outside of the input line box, and the gas tank is slidably arranged in the limit sleeve, one end of the control valve is connected to the gas outlet of the gas tank, and the other end is abutted against the outer wall of the input line box and connected to the gas supply hole; the pressure plate is slidably arranged in the limit sleeve, and one end of the pressure plate extends to the outside of the limit sleeve and slidably abuts against the sleeve; when the sleeve moves toward the side of the line inlet hole, it can drive the pressure plate to push the gas tank to press down the control valve to open the control valve, and the gas tank inputs inert gas into the input line box.

[0014] By adopting the above technical solution, effective linkage between the inflation component and the sealing component is achieved. When the sleeve is tightened toward the wire inlet hole, it can not only push the first sealing ring to fit tightly and seal the input wire and the wire inlet hole, but also drive the pressure plate to move, thereby causing the gas tank to press down the control valve. Since the control valve adopts an aerosol valve design, it will automatically open when subjected to force, thereby releasing the inert gas in the gas tank into the interior of the input box. This design not only improves the sealing performance of the input box, but also effectively prevents moisture or other impurities from entering the box, thereby extending the service life and reliability of the charging pile. In addition, the structure is simple and compact, easy to install and maintain, and greatly improves the user experience.

[0015] Optionally, the sleeve includes a first abutting portion, a clamping portion and a second abutting portion connected in sequence; the first abutting portion and the second abutting portion are both circular ring-shaped, and the clamping portion is hexagonal nut-shaped; the end of the first abutting portion facing away from the clamping portion is used to abut against the first sealing ring; the second abutting portion slides against the pressure plate and can drive the pressure plate to move.

[0016] By adopting the above technical solution, the convenience and accuracy of the sleeve operation can be effectively improved; specifically, the design of the first abutment portion ensures that the first sealing ring can be pushed smoothly during the screwing of the sleeve, avoiding poor sealing problems caused by uneven extrusion; the clamping portion is designed as a hexagonal nut, which is convenient for tool gripping and improves installation efficiency; the second abutment portion is responsible for accurately pushing the pressure plate to achieve stable control of the gas tank, further improving the reliability of the entire system and user experience.

[0017] Optionally, the inflation assembly further includes an elastic member, which is disposed between the pressure plate and the gas tank, with two ends of the elastic member respectively abutting the pressure plate and the gas tank.

[0018] By adopting the above technical solution, the elastic part can provide a certain elastic buffer space for the pressure plate and the cylinder. When the sleeve is over-tightened and abuts against the first sealing ring, the elastic part can prevent the pressure plate from excessively squeezing the gas tank and causing damage to the control valve or the gas tank, thereby improving the reliability and safety of the entire system.

[0019] Optionally, a fixing component is also included, which includes a supporting seat and a wire pressing plate. The supporting seat is fixed in the input wire box and supports the input wire. The wire pressing plate abuts the side of the input wire away from the supporting seat and the wire pressing plate is connected to the supporting seat by screws.

[0020] By adopting the above technical solution, the fixing component can ensure that the input line is firmly installed inside the input box, preventing the input line from loosening and falling off due to vibration or external pulling, thereby improving the safety and reliability of the charging pile; at the same time, the design of the support seat and wire pressing plate simplifies the installation process, reduces installation time and difficulty, and facilitates subsequent maintenance and inspection.

[0021] Optionally, it further includes a plurality of wire locking terminals, which are conductively connected to the male terminal, and are used to lock the plurality of sub-wires in the input wire and are conductively connected to the plurality of sub-wires in the input wire.

[0022] By adopting the above technical solution, multiple locking wire terminals can not only ensure the stable connection between the multiple sub-wires in the input line and the male terminal, preventing poor contact caused by looseness, but also reduce line failures caused by external vibration or impact to a certain extent, thereby improving the overall reliability and safety of the charging pile.

[0023] Optionally, a snap-in hole is provided on the side wall of the input box, and a snap-in pin is provided in the plug-in hole of the charging pile body. The snap-in pin cooperates with the snap-in hole to quickly lock the relative position of the input box and the charging pile body.

[0024] By adopting the above technical solution, the coordinated design of the snap-in pin and the snap-in hole realizes the rapid locking and unlocking between the input box and the charging pile body, simplifies the installation process and improves the installation efficiency; at the same time, the design also ensures the stability and reliability of the connection between the input box and the charging pile body, avoiding safety hazards caused by looseness.

[0025] Optionally, a second sealing ring is provided between the opening of the plug hole and the input wire box; and a third sealing ring is provided between the abutting surface of the input wire box and the control valve.

[0026] By adopting the above technical solution, the setting of the second sealing ring effectively improves the sealing between the plug-in hole and the input box, preventing moisture and dust from entering the inside of the input box, thereby extending the service life of the charging pile; at the same time, the third sealing ring further enhances the sealing effect between the input box and the abutting surface of the control valve, ensuring that the inert gas will not leak, thereby improving the stability and reliability of the entire system.

[0027] Optionally, a protective shell is further included, which is arranged on the outside of the sealing component and the inflation component and abuts against the side wall of the input wire box.

[0028] By adopting the above technical solution, the protective case can greatly reduce the intrusion of impurities such as dust and moisture in the external environment into the sealing components and inflation components, thereby extending the service life of these components, ensuring the long-term and stable operation of the charging pile, and at the same time improving the overall aesthetics of the charging pile to a certain extent.

[0029] Optionally, the inner ring diameter of the first sealing ring is smaller than the input line diameter, and the outer ring diameter of the first sealing ring is larger than the aperture of the wire inlet hole.

[0030] By adopting the above technical solution, the inner ring diameter of the first sealing ring is smaller than the diameter of the input line, ensuring that the inner wall of the first sealing ring fits tightly with the input line, thereby improving the sealing performance; the outer ring diameter of the first sealing ring is larger than the aperture of the wire inlet hole, and can effectively block the wire inlet hole under the push of the sleeve, further enhancing the dustproof and waterproof capabilities.

[0031] In summary, this application has the following beneficial technical effects:

[0032] 1. Simplify the installation and maintenance steps of the charging pile and enhance the overall sealing performance of the charging pile. The design of the input wire box allows it to be pulled out from the charging pile body like a drawer, making it convenient for users to connect the input wire to the male terminal. This avoids the complex steps of opening the shell in traditional methods and reduces the risk of misoperation by non-professionals. The sleeve, first sealing ring and sleeve in the sealing assembly work together. When the sleeve is tightened, the first sealing ring can tightly fit the outer wall of the input wire and the edge of the wire inlet, effectively preventing moisture and dust from entering, and improving the dust and water resistance of the charging pile. The inflation assembly can automatically open the control valve when the sleeve moves toward the wire inlet, injecting inert gas into the input wire box, further isolating the external moisture and corrosive substances, extending the service life of the equipment and ensuring electrical safety.

[0033] 2. The inflatable component and the sealing component are effectively linked. When the sleeve is tightened toward the cable entry hole, it not only pushes the first sealing ring to fit tightly and seal the input cable and the cable entry hole, but also drives the pressure plate to move, thereby causing the gas tank to press down on the control valve. Because the control valve adopts an aerosol valve design, it automatically opens when force is applied, thereby releasing the inert gas in the gas tank into the interior of the input cable box. This design not only improves the sealing performance of the input cable box, but also effectively prevents moisture or other impurities from entering the input cable box, thereby extending the service life and reliability of the charging pile. In addition, the simple and compact structure is easy to install and maintain, greatly improving the user experience.

[0034] 3. It can effectively improve the convenience and accuracy of sleeve operation; specifically, the design of the first abutment part ensures that the first sealing ring can be pushed smoothly during the sleeve screwing process, avoiding poor sealing problems caused by uneven extrusion; the clamping part is designed as a hexagonal nut, which is convenient for tool grip and improves installation efficiency; the second abutment part is responsible for accurately pushing the pressure plate to achieve stable control of the gas tank, further improving the reliability of the entire system and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0036] Figure 2 It mainly displays the input box, sealing assembly and inflation assembly of the embodiment of the application.

[0037] Figure 3 It mainly displays the charging pile body of the application embodiment.

[0038] Explanation of the accompanying drawings: 100, input line; 1, input box; 11, wire entry hole; 12, male terminal; 13, gas transmission hole; 14, snap-in hole; 2, charging pile body; 21, plug-in hole; 22, female terminal; 23, snap-in pin; 3, sealing assembly; 31, sleeve; 32, sleeve; 321, first abutting portion; 322, clamping portion; 323, second abutting portion; 33, first sealing ring; 4, inflation assembly; 41, gas tank; 42, control valve; 43, limiting sleeve; 431, guide groove; 44, pressure plate; 45, elastic part; 5, fixing assembly; 51, supporting seat; 52, wire pressing plate; 6, locking wire terminal; 61, threading hole; 62, fastening screw; 7, second sealing ring; 8, third sealing ring; 9, protective shell; 10, mounting bracket. DETAILED DESCRIPTION

[0039] The following combination Figure 1-Figure 3 This application is described in further detail.

[0040] An embodiment of the present application discloses an AC charging pile with a drawer-type input line installation box.

[0041] Reference Figure 1 and Figure 2 In this embodiment, the AC charging pile includes an input box 1, a charging pile body 2, a sealing component 3 and an inflation component 4.

[0042] The input box 1 is a rectangular box shaped like a drawer and is made of high-strength plastic. It can ensure its own mechanical strength while also having high corrosion resistance and insulation performance; a circular wire entry hole 11 is opened on the side wall of the input box 1, and the aperture of the wire entry hole 11 is slightly larger than the diameter of the input wire 100 to facilitate the input wire 100 to pass through it; three neatly arranged male terminals 12 are provided in the input box 1, and these male terminals 12 are fixed to the bottom of the input box 1 by screws. Each male terminal 12 corresponds to a conductive connection of a sub-wire in the input wire 100, and the three male terminals 12 correspond to the neutral wire, the live wire, and the ground wire respectively; the male terminals 12 are made of copper, which has the advantages of low contact resistance and excellent conductivity; in other embodiments, the number of male terminals 12 can also be flexibly adjusted according to the number of sub-wires of the input wire 100; the male terminals 12 can also be made of silver or tin alloy.

[0043] Reference Figure 2 and Figure 3In this embodiment, the charging pile body 2 is provided with a square plug-in hole 21. The dimensions of the plug-in hole 21 match the external dimensions of the input line box 1, allowing the input line box 1 to be smoothly inserted into the plug-in hole 21. The plug-in hole 21 contains three female terminals 22 for connecting an external power source to the charging pile body 2. These female terminals 22 are fixed to the charging pile body 2. When the input line box 1 is inserted into the plug-in hole 21, the three female terminals 22 form a one-to-one conductive connection with the three male terminals 12. The female terminals 22 are also made of copper, ensuring good conductivity. In other embodiments, the number of female terminals 22 can be flexibly adjusted according to the number of circuits in the charging pile body 2. The female terminals 22 can also be made of silver or tin alloy.

[0044] Reference Figure 2 and Figure 3 In this embodiment, the AC charging pile also includes three locking wire terminals 6 that are respectively conductively connected to the three sub-wires in the input line 100, and the three locking wire terminals 6 are respectively conductively connected to the three male terminals 12; the material of the locking wire terminal 6 is consistent with that of the male terminal 12, and the locking wire terminal 6 and the male terminal 12 are an integrated structure; a wire threading hole 61 is opened on the locking wire terminal 6, and a fastening screw 62 that can be inserted into the wire threading hole 61 is also threaded on the locking wire terminal 6; the sub-wires of the transmission line are passed through the wire threading hole 61 and are fixed to the inner wall of the wire threading hole 61 by the fastening screw 62.

[0045] Reference Figure 2 and Figure 3 In this embodiment, the sidewall of the input cable box 1 is further provided with a latching hole 14, and a latching pin 23 is provided within the insertion hole 21 of the charging pile body 2. The latching pin 23 cooperates with the latching hole 14 to quickly lock the relative position of the input cable box 1 and the charging pile body 2. The latching pin 23 is cylindrical, with one end slidingly inserted into the charging pile body 2 and the other end extending into the insertion hole 21 for insertion and mating with the latching hole 14. A spring is provided between the latching pin 23 and the charging pile body 2 to cause the latching pin 23 to spring into the insertion hole 21. The end of the latching pin 23 that engages the insertion hole 14 is rounded and chamfered. When installing the charging pile, the input cable box 1 is inserted into the insertion hole 21. The latching pin 23 is abutted by the sidewall of the input cable box 1 and retracts until the input cable box 1 reaches the predetermined position, at which point the latching pin 23 automatically pops out and inserts into the latching hole 14 for quick locking. In other embodiments, screws may be used to fix the input box 1 to the charging pile body 2 to achieve position locking of the input box 1 and the charging pile body 2 .

[0046] Reference Figure 2 and Figure 3In this embodiment, a mounting bracket 10 is provided on the side of the input line box 1 near the wire inlet hole 11, and the sealing assembly 3 includes a sleeve 31, a sleeve 32 and a first sealing ring 33; the mounting bracket 10 has an L-shaped appearance and is also made of high-strength plastic. The mounting bracket 10 is fixed to the input line box 1 by screws; the sleeve 31 and the sleeve 32 are both tubular, and the sleeve 31 is arranged on the outside of the input line box 1 near the wire inlet hole 11 and is coaxial with the wire inlet hole 11. The end of the sleeve 31 facing away from the wire inlet hole 11 is fixed to the mounting bracket 10, and a certain gap is left between the end of the sleeve 31 near the wire inlet hole 11 and the wire inlet hole 11; the inner diameter of the sleeve 31 is slightly larger than the diameter of the input line 100 to facilitate the passage of the input line 100.

[0047] The sleeve 32 is sleeved on the sleeve 31 and the inner wall of the sleeve 32 is threadedly connected to the outer wall of the sleeve 31. The sleeve 32 includes a first abutting portion 321, a clamping portion 322 and a second abutting portion 323 connected in sequence. The first abutting portion 321 and the second abutting portion 323 are both circular and have outer diameters larger than the outer diameter of the clamping portion 322. The clamping portion 322 is in the shape of a hexagonal nut to facilitate tool clamping and rotation.

[0048] The first sealing ring 33 is located at one end of the sleeve 32 close to the wire inlet hole 11; the inner diameter of the first sealing ring 33 is smaller than the diameter of the input line 100, and the outer diameter of the first sealing ring 33 is larger than the diameter of the wire inlet hole 11; when the charging pile leaves the factory, the first sealing ring 33 is elastically sleeved on the end of the sleeve 31 close to the wire inlet hole 11; when installing the charging pile, the sleeve 32 is rotated, and the sleeve 32 moves toward the side of the wire inlet hole 11, and the side of the first abutting portion 321 away from the clamping portion 322 abuts against the side of the first sealing ring 33 away from the wire inlet hole 11. Continuously rotating the sleeve 32 pushes the first sealing ring 33 to slide on the sleeve 31 until it detaches from the sleeve 31; at this time, the inner wall of the first sealing ring 33 is in sealing contact with the outer wall of the input line 100, and the side of the first sealing ring 33 away from the sleeve 32 covers the wire inlet hole 11 and is in sealing contact with the outer wall of the input line box 1 to form a seal for the wire inlet hole 11.

[0049] Preferably, both the sleeve 31 and the sleeve 32 are made of high-strength plastic, ensuring both strength and high insulation. The first sealing ring 33 is an O-ring made of rubber, which exhibits excellent elasticity and sealing properties. In other embodiments, the sleeve 31 and the sleeve 32 may also be made of an aluminum alloy with higher strength. The first sealing ring 33 may also be made of silicone to improve heat resistance and service life.

[0050] Reference Figure 2 and Figure 3In this embodiment, the inflation component 4 is mainly used to inject inert gas into the input line box 1 to further improve the moisture-proof performance. The inflation component 4 includes a gas tank 41, a control valve 42, a limiting sleeve 43, a pressure plate 44 and an elastic member 45. The input line box 1 is also provided with a gas delivery hole 13; the limiting sleeve 43 is fixed to the side of the mounting frame 10 close to the sleeve 32 to support and guide the movement of the gas tank 41, and the gas tank 41 is slidably set in the limiting sleeve 43 and the output port of the gas tank 41 is facing the gas delivery hole 13. The inner diameter of the limiting sleeve 43 is slightly larger than the outer diameter of the gas tank 41 to ensure that the gas tank 41 can slide freely inside it, and the sliding direction of the gas tank 41 is parallel to the central axis of the sleeve 32; the gas tank 41 can use a disposable ultra-small steel gas cylinder filled with high-pressure nitrogen.

[0051] The control valve 42 is an aerosol valve. One end of the control valve 42 seals the air outlet of the gas tank 41, and the other end abuts against the outer wall of the input line box 1 and seals the air supply hole 13. In this design, when the gas tank 41 slides toward the input line box 1, the control valve 42 will be pressed down and automatically opened, allowing the gas tank 41 to inject inert gas into the input line box 1 through the air supply hole 13.

[0052] The pressure plate 44 is also made of high-strength plastic. The pressure plate 44 is slidably arranged in the limit sleeve 43 and is located on the side of the gas tank 41 away from the control valve 42. A guide groove 431 is also provided on the side of the limit sleeve 43 close to the sleeve 32; one end of the pressure plate 44 is located in the limit sleeve 43, and the other end extends to the outside of the limit sleeve 43 through the guide groove 431 and slides and abuts against the side of the second abutting portion 323 close to the clamping portion 322. When the sleeve 32 moves toward the side of the wire inlet hole 11, the second abutting portion 323 drives the pressure plate 44 to move toward the side of the wire inlet hole 11, thereby pushing the gas tank 41 to press down the control valve 42, so that the control valve 42 is opened.

[0053] The elastic member 45 is installed between the pressure plate 44 and the gas tank 41, with its two ends respectively abutting the pressure plate 44 and the gas tank 41; the elastic member 45 is a spring, and the elastic member 45 can provide a certain elastic buffer for the pressure plate 44 and the cylinder. When the sleeve 32 is over-tightened and abuts the first sealing ring 33, the elastic member 45 can prevent the pressure plate 44 from excessively squeezing the gas tank 41 and causing damage to the control valve 42 or the gas tank 41.

[0054] Reference Figure 2 and Figure 3In this embodiment, the AC charging pile also has a fixed component 5, which includes a supporting seat 51 and a wire pressing plate 52; the supporting seat 51 is used to support the input line 100, and its appearance is a U-shaped pillar. The supporting seat 51 and the input line box 1 are an integrated structure. The width of the supporting seat 51 is slightly larger than the diameter of the input line 100 to ensure that the input line 100 can be placed firmly; the wire pressing plate 52 is a U-shaped plastic thin plate, which is fixed to the supporting seat 51 by screws and is used to press the input line 100 on the supporting seat 51 to prevent it from loosening.

[0055] Preferably, a second sealing ring 7 is provided between the orifice of the plug-in hole 21 and the input box 1, and a third sealing ring 8 is provided between the abutting surface of the input box 1 and the control valve 42; the second sealing ring 7 is provided at the orifice of the plug-in hole 21, and is used to seal the gap between the input box 1 and the plug-in hole 21; the second sealing ring 7 is an O-type rubber sealing ring, which has good flexibility and temperature resistance; the third sealing ring 8 is provided between the abutting surface of the input box 1 and the control valve 42, and is used to prevent gas leakage; the third sealing ring 8 also is an O-type rubber sealing ring, which has good sealing performance.

[0056] Reference Figure 1 In this embodiment, the AC charging pile also includes a protective shell 9, which is arranged to cover the outside of the sealing component 3 and the inflatable component 4 and abut against the side wall of the input box 1 where the wire entry hole 11 is opened; the main function of the protective shell 9 is to protect the sealing component 3 and the inflatable component 4 from the influence of the external environment and extend the service life of the sealing component 3 and the inflatable component 4; the protective shell 9 is also made of high-strength plastic material, and the inner cavity size of the protective shell 9 is slightly larger than the maximum size of the sealing component 3 and the inflatable component 4 to ensure that all components can be completely covered.

[0057] The implementation principle of the embodiment of this application is as follows: Using the drawer-style input cable box 1 design, when installing the charging pile, the user simply connects the input cable 100 to the male terminal 12 inside the input cable box 1, then inserts the input cable box 1 into the socket 21 on the charging pile body 2. Then, tighten the sleeve 32 to seal the first sealing ring 33 against the cable inlet 11. The gas tank 41 then fills the input cable box 1 with inert gas, completing the installation. This installation method eliminates the need to disassemble the front and rear housings, greatly simplifying the installation process and avoiding the risk of equipment damage caused by misoperation by non-professionals. It also ensures the tightness of the charging pile and extends the service life of the equipment.

[0058] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An AC charging pile with a drawer-type input line installation box, characterized in that: include: An input wire box (1), wherein a side wall of the input wire box (1) is provided with a wire entry hole (11) for the input wire (100) to enter, and a plurality of male terminals (12) are provided in the input wire box (1), and the male terminals (12) are conductively connected to the input wire (100); A charging pile body (2), wherein the charging pile body (2) is provided with a plug hole (21) for inserting an input box (1), and female terminals (22) are provided in the plug hole (21) and respectively match a plurality of male terminals (12), and the female terminals (22) are used for supplying power to the charging pile body (2) via an external power source, and when the male terminal (12) is inserted into the plug hole (21), the female terminal (22) is conductively connected to the male terminal (12); A sealing assembly (3), the sealing assembly (3) comprising a sleeve (31), a sleeve (32) and a first sealing ring (33), the sleeve (31) being arranged on the outside of the input line box (1) near the line inlet hole (11), the input line box (1) being provided with a mounting frame (10) on one side near the line inlet hole (11), the mounting frame (10) being L-shaped in appearance; the mounting frame (10) being fixed on the input line box (1), the end of the sleeve (31) facing away from the line inlet hole (11) being fixed on the mounting frame (10); the sleeve (31) being used to be sleeved on the outside of the input line (100), the first sealing ring (33) being able to be elastically sleeved on the sleeve (31) ), the sleeve (32) is sleeved on the sleeve (31) and is threadedly connected to the sleeve (31), and the sleeve (32) abuts against the side of the first sealing ring (33) away from the wire inlet hole (11); when the sleeve (32) is rotated to move toward the side of the wire inlet hole (11), the sleeve (32) can push the first sealing ring (33) to slide on the sleeve (31) and disengage from the sleeve (31), so that the inner wall of the first sealing ring (33) is in sealing contact with the outer wall of the input line (100), and the side of the first sealing ring (33) away from the sleeve (32) covers the wire inlet hole (11) and is in sealing contact with the outer wall of the input line box (1) to form a seal for the wire inlet hole (11); An air filling assembly (4), the air filling assembly (4) comprising a gas tank (41) and a control valve (42), a gas delivery hole (13) being provided on the input box (1), the gas tank (41) being arranged on a side wall of the input box (1), and the gas tank (41) being filled with inert gas, the control valve (42) being in communication with the gas tank (41) and the gas delivery hole (13), and the control valve (42) being synchronously opened when the sleeve (32) moves toward the side of the inlet hole (11) to allow the gas tank (41) to input inert gas into the input box (1); the first sealing ring (33) being located at one end of the sleeve (32) close to the inlet hole (11); The inflation assembly (4) further comprises a limiting sleeve (43) and a pressure plate (44), and the control valve (42) adopts an aerosol valve; the limiting sleeve (43) is arranged on the outside of the input line box (1), and the gas tank (41) is slidably arranged in the limiting sleeve (43); one end of the control valve (42) is connected to the gas outlet of the gas tank (41), and the other end is in contact with the outer wall of the input line box (1) and is connected to the gas delivery hole (13); the pressure plate (44) is slidably arranged in the limiting sleeve (43), and one end of the pressure plate (44) extends to the outside of the limiting sleeve (43) and is in slidable contact with the sleeve (32); when the sleeve (32) moves toward the side of the inlet hole (11), it can drive the pressure plate (44) to push the gas tank (41) to press the control valve (42) downward to open the control valve (42), and the gas tank (41) inputs inert gas into the input line box (1); The inner diameter of the first sealing ring (33) is smaller than the diameter of the input line (100), and the outer diameter of the first sealing ring (33) is larger than the aperture of the line inlet hole (11).

2. The AC charging pile with a drawer-type input line installation box according to claim 1, characterized in that: The sleeve (32) includes a first abutting portion (321), a clamping portion (322), and a second abutting portion (323) connected in sequence; the first abutting portion (321) and the second abutting portion (323) are both annular, and the clamping portion (322) is in the shape of a hexagonal nut; an end of the first abutting portion (321) facing away from the clamping portion (322) is used to abut against the first sealing ring (33); the second abutting portion (323) slides against the pressure plate (44) and can drive the pressure plate (44) to move.

3. The AC charging pile with a drawer-type input line installation box according to claim 1, characterized in that: The inflation assembly (4) further comprises an elastic member (45), wherein the elastic member (45) is arranged between the pressure plate (44) and the gas tank (41), and two ends of the elastic member (45) respectively abut against the pressure plate (44) and the gas tank (41).

4. The AC charging pile with a drawer-type input line installation box according to claim 1, characterized in that: The invention also includes a fixing assembly (5), wherein the fixing assembly (5) includes a supporting seat (51) and a wire pressing plate (52), wherein the supporting seat (51) is fixed in the input wire box (1) and supports the input wire (100), and the wire pressing plate (52) abuts against a side of the input wire (100) facing away from the supporting seat (51), and the wire pressing plate (52) is connected to the supporting seat (51) by screws.

5. The AC charging pile with a drawer-type input line installation box according to claim 1, characterized in that: It also includes a plurality of wire locking terminals (6), the wire locking terminals (6) being conductively connected to the male terminal (12), and the plurality of wire locking terminals (6) being used to lock the plurality of sub-wires in the input wire (100) and conductively connected to the plurality of sub-wires in the input wire (100).

6. The AC charging pile with a drawer-type input line installation box according to claim 1, characterized in that: A snap-in hole (14) is provided on the side wall of the input box (1), and a snap-in pin (23) is provided in the plug-in hole (21) of the charging pile body (2). The snap-in pin (23) cooperates with the snap-in hole (14) to quickly lock the relative positions of the input box (1) and the charging pile body (2).

7. The AC charging pile with a drawer-type input line installation box according to claim 1, characterized in that: A second sealing ring (7) is provided between the opening of the plug hole (21) and the input box (1); and a third sealing ring (8) is provided between the contact surface of the input box (1) and the control valve (42).

8. The AC charging pile with a drawer-type input line installation box according to claim 1, characterized in that: It also includes a protective shell (9), which is arranged on the outside of the sealing component (3) and the inflation component (4) and abuts against the side wall of the input box (1).

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