Alternating current charging pile with drawer type input line mounting box

Abstract

The invention relates to an alternating current charging pile with a drawer type input line mounting box, the alternating current charging pile comprises 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 a line inlet hole for an input line to enter, and the input line box is internally provided with a plurality of male end terminals which are conductively connected with the input line; the charging pile body is provided with a plug hole for the input wire box to insert, the plug hole is internally provided with a female end terminal matched with the male end terminal, and when the input wire box is inserted into the plug hole, the male end terminal is conductively connected with the female end terminal; the sealing assembly is composed of a casing pipe, a sleeve and a first sealing ring, and the first sealing ring is pushed by rotating the sleeve to achieve sealing of the input line. The inflation assembly comprises a gas tank and a control valve, and inert gas is automatically injected into the input wire box when the sleeve moves. The charging pile has the effects of improving the convenience when the charging pile is installed and maintained 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 replenishes power 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 a 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 that the main control, electronic control, card swiping and other functional modules are locked in the front and rear shells, and there is a waterproof sealing ring between the two shells. When installing, the user needs to unscrew the screws that lock the front and rear shells, open the front shell, pass the input line through the wire hole and connect it, then cover the front shell again, tighten the screws, and use fireproof mud 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 misoperation after opening the shell, and it is difficult to ensure the sealing of the shell after it is installed. 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: An AC charging pile with a drawer-type input line installation box, comprising: An input wire box, wherein a side wall of the input wire box is provided with a wire entry hole for the input wire to enter, and a plurality of male terminals are arranged in the input wire box, and the male terminals are conductively connected to the input wire; A charging pile body, wherein the charging pile body is provided with a plug-in hole for inserting an input wire box, wherein female terminals respectively matching with a plurality of male terminals are arranged in the plug-in hole, wherein the female terminals are used for supplying power to the charging pile body with an external power source, and when the male terminal is inserted into the plug-in hole, the female terminal is conductively connected with the male terminal; A sealing assembly, the sealing assembly comprising a sleeve, a sleeve and a first sealing ring, the sleeve being arranged at the outside of the input line box near the wire entry hole, the sleeve being used to be sleeved on the outside of the input line, the first sealing ring being able to be elastically sleeved on the sleeve, the sleeve being sleeved on the sleeve and being threadedly connected with the sleeve, and the sleeve abutting against a 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; An inflation component, the inflation component includes a gas tank and a control valve, a gas supply hole is opened on the input line box, the gas tank is arranged on the side wall of the input line box, and the gas tank is filled with inert gas, the control valve connects the gas tank and the gas supply hole, and when the sleeve moves to 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.

[0007] By adopting the above technical scheme, the steps of installation and maintenance 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, the first sealing ring and the sleeve in the sealing assembly work together, and 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 resistance 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 external moisture and corrosive substances, extending the service life of the equipment and ensuring electrical safety.

[0008] 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 to 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.

[0009] By adopting the above technical scheme, 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 after being 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.

[0010] Optionally, the sleeve includes a first abutment portion, a clamping portion and a second abutment portion connected in sequence; the first abutment portion and the second abutment portion are both in the shape of a circular ring, and the clamping portion is in the shape of a hexagonal nut; the end of the first abutment portion facing away from the clamping portion is used to abut against a first sealing ring; the second abutment portion slides against the pressure plate and can drive the pressure plate to move.

[0011] 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 smoothly pushed during the screwing of the sleeve, avoiding poor sealing problems caused by uneven extrusion; the clamping portion is designed as a hexagonal nut to facilitate tool gripping and improve 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.

[0012] Optionally, the inflation assembly further includes an elastic member, wherein the elastic member is disposed between the pressure plate and the gas tank, and two ends of the elastic member abut against the pressure plate and the gas tank respectively.

[0013] 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.

[0014] Optionally, it also includes a fixing component, 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.

[0015] By adopting the above technical solution, the fixing component can ensure that the input line is firmly installed inside the input line 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 the wire pressing plate simplifies the installation process, reduces the installation time and difficulty, and facilitates later maintenance and repair.

[0016] 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 conductively connected to the plurality of sub-wires in the input wire.

[0017] 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, and prevent 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.

[0018] 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.

[0019] By adopting the above technical solution, the matching design of the snap-in pin and the snap-in hole realizes the quick 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.

[0020] 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.

[0021] 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 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.

[0022] Optionally, a protective shell is further included, wherein the protective shell cover is arranged on the outside of the sealing component and the inflation component and abuts against the side wall of the input wire box.

[0023] 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 the inflation components, thereby extending the service life of these components and ensuring the long-term and stable operation of the charging pile, while also improving the overall aesthetics of the charging pile to a certain extent.

[0024] 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 input line hole.

[0025] By adopting the above technical solution, the inner ring diameter of the first sealing ring is smaller than the input line diameter, ensuring that the inner wall of the first sealing ring fits tightly against the input line and 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 dust and water proof capabilities.

[0026] In summary, this application includes the following beneficial technical effects: 1. Simplify the steps of charging pile installation and maintenance, 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, which is convenient for users to connect the input wire to the male terminal, avoiding the complex steps of opening the shell in the traditional method, and reducing the risk of misoperation by non-professionals; the sleeve, the first sealing ring and the sleeve in the sealing component work together. When the sleeve is tightened, the first sealing ring can fit tightly against 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 resistance of the charging pile; the inflation component can automatically open the control valve while the sleeve moves toward the wire inlet hole, and inject inert gas into the input wire box, further isolating external moisture and corrosive substances, extending the service life of the equipment and ensuring electrical safety; 2. The effective linkage between the inflation component and the sealing component is realized. 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, so that the gas tank presses down the control valve. Since the control valve adopts the aerosol valve design, it will automatically open after being stressed, thereby releasing the inert gas in the gas tank into the input wire box. This design not only improves the sealing performance of the input wire box, but also effectively prevents moisture or other impurities from entering the input wire 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. 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 smoothly pushed during the screwing process of the sleeve, avoiding poor sealing problems caused by uneven extrusion; the clamping part is designed as a hexagonal nut, which is convenient for tool gripping 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

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 The input box, sealing assembly and inflation assembly of the application embodiment are mainly displayed.

[0029] Figure 3 Mainly display the charging pile body of the application embodiment.

[0030] Explanation of the reference numerals: 100, input line; 1, input box; 11, line 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 abutment portion; 322, clamping portion; 323, second abutment portion; 33, first sealing ring; 4, inflation assembly; 41, gas tank; 42, control valve; 43, limit sleeve; 431, guide groove; 44, pressure plate; 45, elastic member; 5, fixing assembly; 51, supporting seat; 52, wire pressing plate; 6, wire locking terminal; 61, threading hole; 62, fastening screw; 7, second sealing ring; 8, third sealing ring; 9, protective shell; 10, mounting bracket. DETAILED DESCRIPTION

[0031] The following combination Figure 1-Figure 3 This application is described in further detail.

[0032] The embodiment of the present application discloses an AC charging pile with a drawer-type input line installation box.

[0033] Reference Figure 1 and Figure 2 In this embodiment, the AC charging pile includes an input wire box 1, a charging pile body 2, a sealing component 3 and an inflation component 4.

[0034] The input box 1 is a rectangular box shaped like a drawer, 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 line 100, so that the input line 100 can pass through it; three neatly arranged male terminals 12 are arranged in the input box 1, and these male terminals 12 are fixed to the bottom of the input box 1 by screws, and each male terminal 12 corresponds to a conductive connection of a sub-wire in the input line 100, and the three male terminals 12 correspond to the neutral line, the live wire, and the ground wire respectively; the male terminal 12 is 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 line 100; the male terminal 12 can also be made of silver or tin alloy.

[0035] Reference Figure 2 and Figure 3In this embodiment, a square plug hole 21 is provided on the charging pile body 2. The size of the plug hole 21 matches the external size of the input line box 1, and the input line box 1 can be smoothly inserted into the plug hole 21; three female terminals 22 are provided in the plug hole 21 for an external power source to supply power to the charging pile body 2; these female terminals 22 are fixed on the charging pile body 2; when the input line box 1 is inserted into the plug hole 21, the three female terminals 22 are conductively connected to the three male terminals 12 one by one; the female terminals 22 are also made of copper to ensure good conductivity. In other embodiments, the number of female terminals 22 can also be flexibly adjusted according to the number of lines of the charging pile body 2; the female terminals 22 can also be made of silver or tin alloy.

[0036] Reference Figure 2 and Figure 3 In this embodiment, the AC charging pile also includes three locking wire terminals 6 which 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 threading hole 61 is provided on the locking wire terminal 6, and a fastening screw 62 which can be inserted into the threading hole 61 is also threadedly connected on the locking wire terminal 6; the sub-wires of the transmission line are passed through the threading hole 61 and are fixed to the inner wall of the threading hole 61 by the fastening screw 62.

[0037] Reference Figure 2 and Figure 3 In this embodiment, the side wall of the input box 1 is also provided with a snap-in hole 14, and the plug-in hole 21 of the charging pile body 2 is provided with a snap-in pin 23. The snap-in pin 23 cooperates with the snap-in hole 14 to quickly lock the relative position of the input box 1 and the charging pile body 2; the snap-in pin 23 is cylindrical and one end is slidably plugged into the charging pile body 2, and the other end extends into the plug-in hole 21 for plugging and cooperating with the snap-in hole 14. A spring is provided between the snap-in pin 23 and the charging pile body 2 to make the snap-in pin 23 bounce into the plug-in hole 21, and one end of the snap-in pin 23 for cooperating with the snap-in hole 14 is chamfered with a round head. When installing the charging pile, the input box 1 is inserted into the plug-in hole 21, and the snap-in pin 23 is retracted after being abutted by the side wall of the input box 1 until the input box 1 reaches the predetermined position, and the snap-in pin 23 automatically pops out and plugs into the snap-in hole 14 to achieve rapid 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 .

[0038] Reference Figure 2 and Figure 3In this embodiment, a mounting frame 10 is provided on one side of the input line box 1 close to the line inlet hole 11, and the sealing assembly 3 includes a sleeve 31, a sleeve 32 and a first sealing ring 33; the mounting frame 10 is L-shaped in appearance and is also made of high-strength plastic, and the mounting frame 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 outer side of the input line box 1 close to the line inlet hole 11 and is coaxial with the line inlet hole 11, and the end of the sleeve 31 away from the line inlet hole 11 is fixed to the mounting frame 10, and a certain gap is left between the end of the sleeve 31 close to the line inlet hole 11 and the line inlet hole 11; the inner diameter of the sleeve 31 is slightly larger than the diameter of the input line 100 to facilitate the input line 100 to pass through.

[0039] 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 abutment portion 321, a clamping portion 322 and a second abutment portion 323 which are connected in sequence. The first abutment portion 321 and the second abutment portion 323 are both circular and have outer diameters greater 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.

[0040] 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 one 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, and the sleeve 32 is continuously rotated to push the first sealing ring 33 to slide on the sleeve 31 until it is separated from the sleeve 31; at this time, the inner wall of the first sealing ring 33 is sealed against 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 sealed against the outer wall of the input line box 1 to form a seal for the wire inlet hole 11.

[0041] Preferably, the sleeve 31 and the sleeve 32 are both made of high-strength plastic material, which ensures strength and has high insulation; the first sealing ring 33 is an O-ring made of rubber material, which has good elasticity and sealing performance. In other embodiments, the sleeve 31 and the sleeve 32 can also be made of aluminum alloy with higher strength; the first sealing ring 33 can also be made of silicone material to improve temperature resistance and service life.

[0042] 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 limit 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 limit 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 limit sleeve 43 and the output port of the gas tank 41 faces the gas delivery hole 13. The inner diameter of the limit 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.

[0043] 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, so that the gas tank 41 injects inert gas into the input line box 1 through the air supply hole 13.

[0044] 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 abutment 323 close to the clamping portion 322. When the sleeve 32 moves toward the side of the wire inlet hole 11, the second abutment 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.

[0045] The elastic member 45 is installed between the pressure plate 44 and the gas tank 41, and its two ends abut against the pressure plate 44 and the gas tank 41 respectively; 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-screwed and abuts against the first sealing ring 33, the elastic member 45 can prevent the pressure plate 44 from excessively squeezing the gas tank 41 to cause damage to the control valve 42 or the gas tank 41.

[0046] 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, and 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.

[0047] 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 surfaces 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 surfaces of the input box 1 and the control valve 42, and is used to prevent gas leakage; the third sealing ring 8 is also an O-type rubber sealing ring, which has good sealing performance.

[0048] Reference Figure 1 In this embodiment, the AC charging pile 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 line box 1 with the wire entry hole 11; the main function of the protective shell 9 is to protect the sealing component 3 and the inflation component 4 from the influence of the external environment and extend the service life of the sealing component 3 and the inflation 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 inflation component 4 to ensure that all components can be completely covered.

[0049] The implementation principle of the embodiment of the present application is as follows: through the design of the drawer-type input wire box 1, when installing the charging pile, the user only needs to connect the input wire 100 to the male terminal 12 in the input wire box 1, and then insert the input wire box 1 into the plug hole 21 on the charging pile body 2, and then screw the sleeve 32 to make the first sealing ring 33 seal the wire inlet hole 11, and the gas tank 41 fills the input wire box 1 with inert gas to complete the installation. This installation method does not require the removal of the front and rear shells, greatly simplifies the installation steps, avoids the risk of equipment damage caused by misoperation by non-professionals, and also ensures the sealing of the charging pile and extends the service life of the equipment.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope 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 inside the input wire box (1), and the male terminals (12) are conductively connected to the input wire (100); A charging pile body (2), the charging pile body (2) being provided with a plugging hole (21) for inserting an input wire box (1), the plugging hole (21) being provided with female terminals (22) respectively matching with a plurality of male terminals (12), the female terminals (22) being used for supplying power to the charging pile body (2) from an external power source, and when the male terminal (12) is inserted into the plugging 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 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) being sleeved on the sleeve (31) and being threadedly connected to the sleeve (31), and the sleeve (32) being in contact with the first sealing ring (33) away from the side of the inlet hole (11); when the sleeve (32) is rotated to move toward the side of the inlet hole (11), the sleeve (32) can push the first sealing ring (33) to slide on the sleeve (31) and detach 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 inlet hole (11) and is in sealing contact with the outer wall of the input line box (1) to form a seal for the 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) is provided on the input line box (1); the gas tank (41) is arranged on a side wall of the input line box (1), and the gas tank (41) contains an inert gas; the control valve (42) connects the gas tank (41) and the gas delivery hole (13); when the sleeve (32) moves toward the side of the inlet hole (11), the control valve (42) can be opened synchronously to allow the gas tank (41) to input the inert gas into the input line box (1).

2. 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 a limiting sleeve (43) and a pressing plate (44); the control valve (42) is an aerosol valve; the limiting sleeve (43) is arranged outside the input line box (1); the gas tank (41) is slidably arranged inside the limiting sleeve (43); one end of the control valve (42) is connected to the gas outlet of the gas tank (41); the other end abuts against the outer wall of the input line box (1) and is connected to the gas delivery hole (13); the pressing plate (44) is slidably arranged inside the limiting sleeve (43); one end of the pressing plate (44) extends outside the limiting sleeve (43) and slidably abuts against the sleeve (32); when the sleeve (32) moves toward the side of the inlet hole (11), it can drive the pressing plate (44) to push the gas tank (41) to press down the control valve (42) so that the control valve (42) is opened, and the gas tank (41) inputs inert gas into the input line box (1).

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

4. The AC charging pile with a drawer-type input line installation box according to claim 2, 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).

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

6. The AC charging pile with a drawer-type input line installation box according to claim 1, characterized in that: It also comprises 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 a plurality of sub-wires in the input wire (100) and conductively connected to the plurality of sub-wires in the input wire (100).

7. 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 wire 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 position of the input wire box (1) and the charging pile body (2).

8. 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 wire box (1); and a third sealing ring (8) is provided between the abutting surface of the input wire box (1) and the control valve (42).

9. The AC charging pile with a drawer-type input line installation box according to claim 1, characterized in that: It also comprises 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 wire box (1).

10. The AC charging pile with a drawer-type input line installation box according to claim 1, characterized in that: 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 hole diameter of the input hole (11).

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