Safe plugging assembly special for charging and discharging of new energy automobile

Abstract

The utility model discloses a safety plugging assembly special for charging and discharging of a new energy automobile, which comprises a charging gun plug, the charging gun plug is respectively provided with a three-pin plugging sheet I and two cylindrical grooves, and probes are fixed in the cylindrical grooves; a slot matched with the charging gun plug is formed in one side of the conversion plug, the charging gun plug is connected with the slot in a pluggable mode, a three-pin jack matched with the first three-pin insertion piece and two protruding columns connected with the two cylindrical grooves in a pluggable mode one by one are arranged in the slot, spring needles are fixed in the protruding columns, and the spring needles are connected with the two cylindrical grooves in a pluggable mode. The other side corresponding to the conversion plug is an external plugging area, a resistor and ground wire hardware are fixed in the conversion plug, two ends of the ground wire hardware are respectively in one-to-one correspondence with the ground wire hole site on the three-pin jack and the external plugging area, one end of the spring needle is in contact conduction with the corresponding probe, and the other end of the spring needle is electrically connected with the ground wire hardware through the resistor. The utility model has the beneficial effect that the purpose of improving the use convenience is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of safety plug-in components for charging and discharging, and in particular to a safety plug-in component for charging and discharging new energy vehicles. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source (or use conventional vehicle fuels but employ new onboard power systems), integrating advanced technologies in vehicle power control and drive to form vehicles with new technologies and structures. New energy vehicles include pure electric vehicles, range-extended electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, and hydrogen engine vehicles. The current concept of new energy vehicles can be broadly defined as those that convert various forms of energy into electrical energy, using their own batteries to drive an electric motor for vehicle propulsion, while the large-capacity batteries can also discharge externally.

[0003] In the existing technology, in order to meet the needs of daily discharge of new energy vehicles or to adapt to charging with sockets of different rated currents (the rated current of power sockets is generally 10A or 16A), the electric guns equipped with new energy vehicles are often connected to plugs of corresponding specifications by plugging in. Therefore, it is necessary to set the plug interface on the cable connected to the electric gun to accommodate plugs of different specifications. This makes the manufacturing process of the electric gun complicated, and it also requires different plugs to be used, which makes it inconvenient to use. Utility Model Content

[0004] This invention aims to overcome the inconvenience of using electric guns for external charging and discharging in existing technologies, and provides a special safety plug-in component for charging and discharging new energy vehicles to improve ease of use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A safety connector assembly for charging and discharging new energy vehicles, comprising:

[0007] A charging gun plug, wherein the charging gun plug is provided with a three-pronged insert and two cylindrical slots, and a probe is fixed in the cylindrical slots;

[0008] The adapter has a slot on one side that matches the charging gun plug. The charging gun plug is plugged into the slot. The slot has a three-pronged socket that matches the three-pronged prong and two protrusions that are plugged into two cylindrical slots. A spring pin is fixed inside the protrusion. The other side of the adapter is an external connection area. A resistor and ground wire are fixed inside the adapter. The two ends of the ground wire correspond to the ground hole on the three-pronged socket and the external connection area, respectively. One end of the spring pin is in contact with the corresponding probe and is conductive. The other end of the spring pin is electrically connected to the ground wire through the resistor. The default rated current of the charging gun plug is 16A. When it needs to be charged or discharged from an external socket with a 10A rating, an adapter can be used. During the insertion of the charging gun plug into the adapter's slot, the triangular prongs simultaneously insert into the triangular sockets, and the protruding pins insert into the corresponding cylindrical slots. Signal transmission is achieved through spring pins and corresponding probes, allowing the charging gun plug to receive the appropriate signal for discharge or to recognize the 10A current and switch the output current to 10A before plugging it into a regular socket for charging. This improves safety. Furthermore, this invention eliminates the need for frequent plugging and unplugging of different plugs; the adapter allows for current switching and discharge, enhancing convenience. The protruding pins in the slot also help prevent the insertion of other ordinary plugs, further improving safety.

[0009] Preferably, the charging gun plug is equipped with a waterproof ring and a locking cover. The waterproof ring is fixedly connected to the outer wall of the charging gun plug, and the locking cover is fitted onto the charging gun plug and rotatably connected to it. One end of the charging gun plug is inserted into the slot and locked in place by the locking cover engaging with the outer wall of the slot. The waterproof ring is sealed to the open end of the slot under the pressure of the locking cover. The other end of the charging gun plug is fixed with a cable that is electrically connected to the first triangular connector and the probe, respectively. The charging gun plug is directly connected to the charging gun via the cable, eliminating the need for a separate connector on the cable to meet the daily needs of the charging gun, thus simplifying the manufacturing process. After the charging gun plug is inserted into the slot of the adapter plug, it is locked in place by the locking cover, preventing the charging gun plug from falling out. Simultaneously, the waterproof ring seals the gap between the charging gun plug and the slot, ensuring a waterproof effect when the charging gun plug and the adapter plug are in contact.

[0010] Preferably, the outer wall of the slot is provided with two or more L-shaped locking grooves evenly distributed along the circumference of the slot. The L-shaped locking grooves are located at the open end of the slot. The inner wall of the lock cover is provided with two or more locking blocks that match the L-shaped locking grooves one by one. The lock cover is provided with a stepped surface corresponding to the waterproof ring. After one end of the charging gun plug is inserted into the slot, the lock cover is inserted into one end of the corresponding L-shaped locking groove through the locking block. Then, the lock cover is rotated to drive the locking block to rotate synchronously and squeeze into the other end of the L-shaped locking groove to lock. The waterproof ring seals the open end of the slot under the pressing action of the stepped surface. After the charging gun plug is inserted into the adapter slot, the user pushes the lock cover down until the locking block on the lock cover is inserted into one end of the L-shaped locking groove and cannot be pushed down further. Then, the lock cover is rotated so that the locking block rotates synchronously into the other end of the L-shaped locking groove. During the rotation, the locking block is first squeezed by the side wall of the L-shaped locking groove and then enters the other end of the L-shaped locking groove, so that the locking block is limited without external force. The structure is simple and easy to operate. This structure is a conventional locking structure, so it will not be described in detail here.

[0011] Preferably, the charging gun plug includes a support plate, a three-pronged prong fixedly connected to the support plate and located on one side of the support plate, a toggle switch on one side of the support plate, a cover and an encapsulated body on the opposite side of the support plate, the cover being located on the side of the three-pronged prong, the cover being fixedly connected to the support plate and forming an isolation cavity, a circuit board being provided inside the isolation cavity, the toggle switch being electrically connected to the cable through the circuit board, the toggle switch being located inside the isolation cavity, the cover being located inside the encapsulated body, the support plate being fixedly connected to the cable after being encapsulated by the encapsulated body and forming an integral part, which helps to improve the waterproof and dustproof effect inside the charging gun plug, as well as the strength of the charging gun plug, and facilitates repeated insertion and removal, the waterproof ring being located on the encapsulated body and forming an integral part with the encapsulated body, which helps to ensure the waterproof effect. When some sockets lack a grounding signal, the charging gun cannot charge the car. Therefore, this invention includes a toggle switch. By toggling the toggle switch, the user generates a simulated grounding signal through the circuit board, allowing some sockets without a grounding signal to recognize the signal and enabling the charging gun to charge, thus improving ease of use. The cover isolates the circuit board and toggle switch, preventing plastic from entering during injection molding and affecting their normal operation.

[0012] Preferably, the adapter is detachably connected to a gantry, which has a three-pronged hole corresponding to the three-pronged socket. The grounding hardware is located on one side of the gantry, with one end of the grounding hardware located in the external connection area. The other end of the grounding hardware is integrally formed with a grounding clamp corresponding to the grounding hole on the three-pronged socket. The spring pin and the resistor are both located on the other side of the gantry, with one end of the spring pin located inside the protrusion and the other end of the spring pin fixedly connected to the gantry. One end of the resistor is fixedly connected to the spring pin, and the other end of the resistor is fixed with a connecting piece that is electrically connected to the grounding hardware. The other side of the gantry is provided with a safety door that covers the live wire hole and the neutral wire hole on the three-pronged socket respectively. The safety door is elastically slidably connected to the gantry under the drive of the three-pronged socket. In its initial state, the safety door one, under its elastic action, completely covers the live wire and neutral wire positions on the three-prong socket, preventing the insertion of foreign objects and thus improving safety. The combined use of the gantry one and the safety door one is a standard safety protection measure for sockets, so its structure will not be described in detail here. The ground wire clamp one is used to clamp the corresponding prong on the three-prong plug one for circuit conduction. The spring pin is electrically connected to the ground wire hardware through a resistor, allowing the charging gun plug to receive a resistance signal for discharge or enabling the charging gun to identify the 10A current by recognizing the resistance signal and switch the output current to 10A before plugging it into a regular socket for charging, thus improving safety.

[0013] Preferably, the adapter has three sockets on its external connection area. One end of the grounding hardware is integrally formed with a grounding clamp two, which is located within the corresponding hole of the three sockets. The other end of the grounding hardware is bent and recessed towards the three sockets and then fixedly connected to the grounding clamp one. The grounding clamp one and the grounding clamp two are located on opposite sides of the grounding hardware. The adapter contains a live wire hardware and a neutral wire hardware, arranged in an X-shape. The grounding hardware, live wire hardware, and neutral wire hardware are distributed sequentially from the gantry one towards the external connection area. Both ends of the device are integrally formed with live wire clamps. The two live wire clamps are located on opposite sides of the live wire hardware. One live wire clamp is located within the corresponding hole of the three-prong socket. The other live wire clamp, after being bent and lowered from the end of the live wire hardware toward the three-prong socket, corresponds to the live wire hole on the three-prong socket. Both ends of the neutral wire hardware are integrally formed with neutral wire clamps. The two neutral wire clamps are located on opposite sides of the neutral wire hardware. One neutral wire clamp is located within the corresponding hole of the three-prong socket. The other neutral wire clamp, after being bent and lowered from the end of the neutral wire hardware toward the three-prong socket, corresponds to the neutral wire hole on the three-prong socket. Grounding clamp 2, one live wire clamp, and one neutral wire clamp are used to clamp the corresponding prongs on the external plug. Grounding clamp 1, another live wire clamp, and another neutral wire clamp are used to clamp the corresponding prongs on the three-pronged prong 1 of the charging gun plug, so that the charging gun plug can discharge to the outside through the adapter after matching with the slot. Grounding clamp 1, grounding clamp 2, live wire clamp, and neutral wire clamp are all conventional structures on the internal hardware of the socket that connect to the corresponding prongs of the plug, so their structures will not be described further here. Further details are omitted; the ends of the ground wire, live wire, and neutral wire hardware are all bent and recessed towards the three-prong socket, which helps to shorten the height of the adapter. At the same time, the layout design of the ground wire, live wire, and neutral wire hardware makes the three-prong socket in the slot and the three-prong socket on the external plug-in area of ​​the adapter face opposite directions, which helps to reduce the size. The two ends of the ground wire hardware, the two ends of the live wire hardware, and the two ends of the neutral wire hardware form corresponding clamps in opposite directions, which helps to save on material and mold costs.

[0014] Preferably, the adapter plug is detachably connected to a second gantry. A first gantry is located on one side of the adapter plug, and a second gantry is located on the corresponding side. The ground wire hardware, live wire hardware, and neutral wire hardware are all located between the first and second gantry. The second gantry has insertion holes corresponding to the three-prong socket. The second gantry also has a second safety door that covers the live and neutral wire positions on the insertion holes. The second safety door and the second gantry are elastically slidably connected in the left-right direction. In the initial state, the second safety door, under elastic action, completely covers the live and neutral wire positions on the insertion holes, preventing the insertion of foreign objects and thus improving safety. When an external plug is inserted for power, the prongs on the external plug gradually push the second safety door to the left or right to facilitate insertion into the insertion hole. The combined use of the second gantry and the second safety door is a standard safety protection measure for sockets; therefore, its structure will not be described in detail here.

[0015] Preferably, the conversion plug is detachably connected to a push plate, which is located on the side of the second gantry. A drive block is fixed on the push plate, which is located inside the ground wire clamp. After the push plate triggers the drive block through the tripod insert, it is elastically slidably connected to the conversion plug in the front-back direction. A latch is fixed on the push plate. The latch passes through the second gantry and abuts against the side of the second safety door, thus locking the second safety door inside the second gantry. The part of the latch that passes through the second gantry is slidably connected to the second gantry in the front-back direction. In the initial state, when the charging gun plug is not inserted into the three-pronged socket in the slot, one side of safety door two is pressed against the inner wall of door frame two by the latch, thus preventing it from moving left or right and locking it. This is to prevent ordinary plugs from being inserted into the three-pronged socket for power supply, thus achieving the purpose of safe use. When the charging gun plug is inserted into the three-pronged socket in the slot, the corresponding pin on the three-pronged plug one triggers the drive block, driving the push plate to push outward in the front-back direction, causing it to separate the latch from safety door two and release the lock on safety door two, thus facilitating the normal use of the three-pronged socket. As can be seen from the above structural description, the sliding direction of the push plate is perpendicular to the sliding direction of safety door two, which is conducive to the push plate to lock or release safety door two. The structure is simple and easy to operate, which helps to save costs.

[0016] Preferably, one side of the drive block is close to the external insertion area, and the corresponding other side of the drive block is away from the external insertion area. The side of the drive block away from the external insertion area is a downwardly inclined drive surface. As the three-pronged insert is gradually inserted, the push plate acts on the drive surface to push the push plate away from the safety door, thereby forcing the latch to separate from the safety door. When the charging gun plug is inserted into the three-pronged socket in the slot, the corresponding prong on the three-pronged insert acts on the downwardly inclined drive surface. As the three-pronged insert is continuously inserted downward, the drive surface generates relative displacement, gradually driving the push plate to push outward in the front-back direction, causing it to separate the latch from the safety door and release the lock on the safety door, thus facilitating the normal use of the three-pronged socket. The drive method is simple and easy to operate.

[0017] Preferably, the edge of the second gantry extends outward with a rectangular track that matches the latch. One end of the rectangular track is close to the second safety door, and the other end is away from the second safety door. A spring (not shown in the figure) is provided inside the rectangular track. One end of the spring is detachably connected to the end of the rectangular track away from the safety door, and the other end of the spring is detachably connected to one end of the latch. The other end of the latch fits against the side of the second safety door, and the latch and the rectangular track are elastically slidably connected in the front-back direction. In the initial state, when the charging gun plug is not inserted into the three-pronged socket in the slot, the latch abuts against one side of the safety door two under the action of the spring, so that the corresponding other side is pressed against the inner wall of the door frame two, thus preventing the safety door two from moving left and right and locking it. The purpose is to prevent ordinary plugs from being inserted into the three-pronged socket for power supply and to achieve the purpose of safe use. When the charging gun plug is inserted into the three-pronged socket in the slot, the corresponding pin on the three-pronged prongs acts on the downwardly inclined drive surface. As the three-pronged prongs are continuously inserted downward, the drive surface generates relative displacement, gradually driving the push plate and overcoming the force of the spring to push outward in the front and back direction, causing it to separate the latch from the safety door two and release the lock on the safety door two, thus facilitating the normal use of the three-pronged socket. The driving method is simple and easy to operate.

[0018] Preferably, the edge of the second gantry is vertically provided with a limiting post, one end of which is fixedly connected to the second gantry. The edge of the first gantry has a through hole that matches the other end of the limiting post. One side of the push plate is close to the second gantry, and the corresponding side of the push plate is away from the second gantry. The side of the push plate close to the second gantry has a limiting groove that matches the side wall of the limiting post. In the initial state, when the charging gun plug is not inserted into the three-pronged socket in the slot, the latch abuts against one side of the second safety door under the action of the spring, so that the corresponding side is close to the inner side wall of the second gantry, thereby preventing the second safety door from moving left or right and locking it. At the same time, the push plate rests against the limiting post through the limiting groove, further improving the limiting effect of the push plate in the front-back and left-right directions, thereby improving the positional stability of the push plate.

[0019] Preferably, the adapter plug is provided with several sets of socket holes on its external connection area. These sets of socket holes and the three-prong socket are evenly distributed along the length of the adapter plug to form a discharge socket, which can meet the power needs of more devices. The adapter plug is detachably connected to several gantry threes and safety doors three, which correspond one-to-one with several sets of socket holes. The safety doors three and gantry three are elastically slidably connected in the left-right direction. The gantry three is provided with a rectangular slide rail. The rectangular slide rail on the gantry three has the same structure as the rectangular slide rail on the gantry two. The push plate is also fixed with several latches that match one-to-one with the rectangular slide rails on the gantry three. The latches and the rectangular slide rails are elastically slidably connected in the front-back direction. In the initial state, when the charging gun plug is not inserted into the three-pronged socket, under the action of the spring, several latches abut against one side of safety door two and one side of safety door three, so that the corresponding other side is pressed against the inner wall of door frame two and door frame three. This prevents safety door two and safety door three from moving left and right and locks them. The purpose is to prevent ordinary plugs from being inserted into any hole of the power strip for power supply and to achieve the purpose of safe use. The combined use of door frame three and safety door three is a conventional safety protection measure for sockets. Therefore, its structure will not be described in detail here. At the same time, the socket holes can be set to three-prong or five-prong forms according to actual needs. The only difference is the required number of safety doors, but it does not affect the structural universality of the push plate of this utility model for locking different numbers of safety doors.

[0020] Preferably, one end of the connecting piece is located on one side of the gantry and fixedly connected to the grounding hardware, while the other end of the connecting piece passes through the gantry and is located on the corresponding side of the gantry. There are two spring pins, each located within a protruding post and on the left and right sides of the grounding clamp. There are two resistors; the end of the connecting piece passing through the gantry is electrically connected to the two spring pins via the two resistors. The grounding hardware is electrically connected to the two resistors via the connecting piece. One resistor transmits a signal through a corresponding spring pin and probe to identify the discharge signal, allowing the charging gun plug to receive the signal and begin discharging. Since some sockets have two pins without a grounding signal, a toggle switch is needed to generate a simulated grounding signal via the circuit board. The other resistor then transmits a signal through a corresponding spring pin and probe to identify the simulated grounding signal, enabling the charging gun to charge, further improving usability. For sockets with grounding, there is no need to toggle the switch.

[0021] As another preferred embodiment, the adapter plug has a three-pronged connector fixed to its external connection area. The adapter plug also includes live wire and neutral wire hardware, all located on the same side of the gantry. One end of the live wire hardware is fixedly connected to the corresponding prong on the three-pronged connector, and the other end corresponds to the live wire hole on the three-pronged socket. Similarly, one end of the neutral wire hardware is fixedly connected to the corresponding prong on the three-pronged connector, and the other end corresponds to the neutral wire hole on the three-pronged socket. This structure demonstrates that a three-pronged adapter plug facilitates charging of new energy vehicles.

[0022] Preferably, the connecting piece is inserted into the inner wall of the grounding hole on the tripod. One end of the connecting piece is inclined downwards from the grounding hole on the tripod toward the opening end of the grounding clamp. One end of the connecting piece is located on one side of the gantry and on the side of the grounding clamp. The other end of the connecting piece is located on the corresponding side of the gantry. There is one spring pin, which is located inside one of the protrusions and on the side of the grounding clamp. There is one resistor, and the end of the connecting piece on the corresponding side of the gantry is electrically connected to the spring pin through the resistor. When the three-pronged prong on the charging gun plug is gradually inserted into the three-pronged socket, the corresponding prong of the three-pronged prong acts on the inclined end of the connecting piece and pushes it downward until the three-pronged prong is fully inserted into the three-pronged socket. At this time, the connecting piece and the corresponding prong on the three-pronged prong make tight contact, thereby realizing the electrical connection between the connecting piece and the ground wire. When the adapter is in the form of a three-pronged plug, since it has grounding, only one spring pin and the corresponding probe are needed for signal transmission, so that the charging gun can recognize the 10A current and switch the output current to 10A. After that, it can be used for charging by plugging the adapter into a normal socket, thereby improving the safety of use. There is no need to set an additional spring pin for recognizing the grounding analog signal, and there is no need to toggle the switch.

[0023] The beneficial effects of this utility model are:

[0024] 1. This utility model allows for current switching or discharge using only a conversion plug, thus improving ease of use;

[0025] 2. The slot is equipped with a protruding post, which on the one hand helps to prevent other ordinary plugs from being inserted, thereby improving the safety of use. On the other hand, the protruding post is equipped with a spring pin, which transmits signals with the corresponding probe. This allows the charging gun plug to receive the corresponding signal to discharge or enables the charging gun to recognize the 10A current and switch the output current to 10A. After that, it can be plugged into an ordinary socket through the adapter for charging, thereby improving the safety of use.

[0026] 3. After the charging gun plug is inserted into the slot of the adapter, it is locked by the locking cover to prevent the charging gun plug from falling off. At the same time, the waterproof ring can seal the gap between the charging gun plug and the slot, which helps to ensure the waterproof effect when the charging gun plug and the adapter are in contact.

[0027] 4. When some sockets do not have a grounding signal, the charging gun cannot charge the car. Therefore, a toggle switch is provided in this utility model. By toggling the toggle switch, the user can generate a simulated grounding signal through the circuit board, which will enable some sockets without a grounding signal to recognize the signal, thereby enabling the charging gun to charge the car and further improving the convenience of use.

[0028] 5. The housing isolates the circuit board and toggle switch, which helps prevent plastic from entering during injection molding and affecting the normal use of the circuit board and toggle switch;

[0029] 6. The ends of the ground wire, live wire, and neutral wire hardware are all bent and recessed towards the three-prong socket, which helps to shorten the height of the adapter. At the same time, the layout design of the ground wire, live wire, and neutral wire hardware makes the three-prong socket in the slot and the three-prong socket on the external plug-in area of ​​the adapter face opposite directions, which helps to reduce the size. The two ends of the ground wire hardware, the two ends of the live wire hardware, and the two ends of the neutral wire hardware form corresponding clamps in opposite directions, which helps to save on material and mold costs.

[0030] 7. When the charging gun plug is not inserted into the three-pronged socket in the slot, under the action of the spring, several latches abut against one side of safety door two and one side of safety door three, so that the corresponding other side is pressed against the inner wall of door frame two and door frame three. This prevents safety door two and safety door three from moving left and right and thus locks them. The purpose is to prevent ordinary plugs from being inserted into any hole of the discharge socket for power supply and to achieve the purpose of safe use. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0033] Figure 3 This is a structural diagram of the charging gun plug;

[0034] Figure 4 This is a front view of the charging gun plug;

[0035] Figure 5 yes Figure 4 Sectional view of AA;

[0036] Figure 6 and Figure 7 They are Figure 1 A schematic diagram of the internal structure of the converter plug on both sides;

[0037] Figure 8 and Figure 12 They are Figure 1 The transformation inserts two exploded views from different perspectives;

[0038] Figure 9 yes Figure 8 A structural schematic diagram of one section of the central gantry;

[0039] Figure 10 yes Figure 8 Structural diagrams of the two sections of the central gantry;

[0040] Figure 11 yes Figure 8 Schematic diagram of the middle push plate;

[0041] Figure 13 and Figure 14 They are Figure 1 The exploded view of the interior from two different perspectives is shown in the conversion interpolation;

[0042] Figure 15 yes Figure 2 Exploded view of the intermediate conversion interpolation;

[0043] Figure 16 yes Figure 15 A structural schematic diagram of one section of the central gantry.

[0044] In the diagram: 1. Charging gun plug, 2. Three-prong plug 1, 3. Cylindrical slot, 4. Probe, 5. Adapter plug, 6. Slot, 7. Three-prong socket, 8. Protruding post, 9. Spring pin, 10. External connection area, 11. Resistor, 12. Grounding hardware, 13. Waterproof ring, 14. Lock cover, 15. L-shaped lock groove, 16. Lock block, 17. Stepped surface, 18. Support plate, 19. Toggle switch, 20. Cover, 21. Coated body, 22. Circuit board, 23. Door frame 1, 24. Three-prong hole, 25. Grounding clamp 1, 26. Connecting piece, 27. Safety door 1, 28. Three-prong socket, 29. Grounding clamp 2, 30. Live wire hardware, 31. Neutral wire hardware, 32. Live wire clamp, 33. 34. Neutral wire clamp, 35. Gantry 2, 36. Plug hole, 37. Safety door 2, 38. Push plate, 39. Drive block, 40. Lock, 41. Drive surface, 42. Rectangular slide rail, 43. Limiting post, 44. Through hole, 45. Limiting groove, 46. Plug hole, 47. Gantry 3, 48. Safety door 3, 49. Tripod insert 2. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0046] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0047] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “upper,” “lower,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “below” other elements or features would be fixed “upper” to other elements or features. Thus, the exemplary term “lower” can include both upper and lower orientations. The device may be fixed in other ways (rotated 90 degrees or located in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0048] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 15 In the described embodiment, a safety connector assembly for charging and discharging new energy vehicles includes a charging gun plug 1, which has a three-pronged insert 2 and two cylindrical slots 3, with probes 4 fixed in the cylindrical slots 3; and a conversion plug 5, one side of which has a slot 6 that matches the charging gun plug 1, allowing the charging gun plug 1 to be plugged into and out of the slot 6. The slot 6 has a three-pronged socket 7 that matches the three-pronged insert 2 and two protrusions 8 that are plugged into and out of the two cylindrical slots 3, with spring pins 9 fixed in the protrusions 8. The other side of the conversion plug 5 is an external connection area 10, with a resistor 11 and a ground wire hardware 12 fixed in the conversion plug 5. The two ends of the ground wire hardware 12 correspond to the ground wire hole on the three-pronged socket 7 and the external connection area 10, respectively. One end of the spring pin 9 is in contact with the corresponding probe 4 and is conductive, while the other end of the spring pin 9 is electrically connected to the ground wire hardware 12 through the resistor 11.

[0050] like Figure 1 and Figure 2 As shown, the charging gun plug 1 is provided with a waterproof ring 13 and a locking cover 14. The waterproof ring 13 is fixedly connected to the outer side wall of the charging gun plug 1. The locking cover 14 is sleeved on the outside of the charging gun plug 1 and is rotatably connected to the charging gun plug 1. After one end of the charging gun plug 1 is inserted into the slot 6, it is locked by the locking cover 14 cooperating with the outer side wall of the slot 6. The waterproof ring 13 is sealed to the open end of the slot 6 under the pressing action of the locking cover 14. The other end of the charging gun plug 1 is fixed with a cable that is electrically connected to the triangular plug 1 and the probe 4 respectively.

[0051] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the outer wall of the slot 6 is provided with two or more L-shaped locking grooves 15 evenly distributed around the circumference of the slot 6. The L-shaped locking grooves 15 are located at the open end of the slot 6. The inner wall of the lock cover 14 is provided with two or more locking blocks 16 that match the L-shaped locking grooves 15 one by one. The lock cover 14 is provided with a stepped surface 17 corresponding to the waterproof ring 13. After one end of the charging gun plug 1 is inserted into the slot 6, the lock cover 14 is inserted into one end of the corresponding L-shaped locking groove 15 through the locking block 16. Then, the lock cover 14 is rotated to drive the locking block 16 to rotate synchronously and squeeze into the other end of the L-shaped locking groove 15 to lock. The waterproof ring 13 seals the open end of the slot 6 under the pressing action of the stepped surface 17.

[0052] like Figure 3 , Figure 4 and Figure 5 As shown, the charging gun plug 1 includes a support plate 18, a three-pronged prong 2 fixedly connected to the support plate 18 and located on one side of the support plate 18, a toggle switch 19 is also provided on one side of the support plate 18, and a cover 20 and a rubber coating 21 are respectively provided on the other side of the support plate 18. The cover 20 is located on the side of the three-pronged prong 2, and the cover 20 is fixedly connected to the support plate 18 to form an isolation cavity. A circuit board 22 is provided in the isolation cavity. The toggle switch 19 is electrically connected to the cable through the circuit board 22. The toggle switch 19 is located in the isolation cavity, and the cover 20 is located in the rubber coating 21. The support plate 18 is fixedly connected to the cable after being coated by the rubber coating 21 and forms an integral part, which helps to improve the waterproof and dustproof effect inside the charging gun plug 1, as well as the strength of the charging gun plug 1, and facilitates repeated plugging and unplugging. The waterproof ring 13 is located on the rubber coating 21 and forms an integral part with the rubber coating 21, which helps to ensure the waterproof effect.

[0053] like Figure 6 , Figure 8 , Figure 9 , Figure 10 and Figure 16 As shown, a gantry 23 is detachably connected inside the adapter 5. The gantry 23 has a three-pronged hole 24 corresponding to the three-pronged socket 7. The grounding hardware 12 is located on one side of the gantry 23. One end of the grounding hardware 12 is located in the external connection area 10. The other end of the grounding hardware 12 is integrally formed with a grounding clamp 25 corresponding to the grounding hole on the three-pronged hole 24. The spring pin 9 and the resistor 11 are both located on the other side of the gantry 23. One end of the spring pin 9 is located inside the protrusion 8. The other end of the spring pin 9 is fixedly connected to the gantry 23. One end of the resistor 11 is fixedly connected to the spring pin 9. The other end of the resistor 11 is fixed with a connecting piece 26 that is electrically connected to the grounding hardware 12. The other side of the gantry 23 is provided with a safety door 27 that covers the live wire hole and the neutral wire hole on the three-pronged hole 24 respectively. The safety door 27 is elastically slidably connected to the gantry 23 under the drive of the three-pronged plug piece 2.

[0054] like Figure 8 , Figure 10 , Figure 12 , Figure 13 and Figure 14 As shown, the adapter 5 has a three-hole socket 28 on its external connection area 10. One end of the ground wire hardware 12 is integrally formed with a ground wire clamp 29, which is located within the corresponding hole of the three-hole socket 28. The other end of the ground wire hardware 12 is bent and recessed towards the three-hole socket 28 and then fixedly connected to the ground wire clamp 25. The ground wire clamp 25 and the ground wire clamp 29 are located on opposite sides of the ground wire hardware 12. The adapter 5 has a live wire hardware 30 and a neutral wire hardware 31 fixed inside. The live wire hardware 30 and the neutral wire hardware 31 are arranged in an X-shape. The ground wire hardware 12, the live wire hardware 30, and the neutral wire hardware 31 are distributed in sequence from the gantry 23 towards the external connection area 10. The two ends of the live wire hardware 30 are respectively The live wire clamp 32 is integrally formed, with two live wire clamps 32 located on opposite sides of the live wire hardware 30. One live wire clamp 32 is confined within the corresponding hole of the three-prong socket 28, and the other live wire clamp 32 is bent and lowered from the end of the live wire hardware 30 toward the three-prong socket 28 to correspond to the live wire hole on the three-prong hole 24. The neutral wire hardware 31 has two neutral wire clamps 33 integrally formed at both ends, with two neutral wire clamps 33 located on opposite sides of the neutral wire hardware 31. One neutral wire clamp 33 is confined within the corresponding hole of the three-prong socket 28, and the other neutral wire clamp 33 is bent and lowered from the end of the neutral wire hardware 31 toward the three-prong socket 28 to correspond to the neutral wire hole on the three-prong hole 24.

[0055] The adapter plug 5 is detachably connected to a second gantry 34. The first gantry 23 is located on one side of the adapter plug 5, and the second gantry 34 is located on the corresponding other side of the adapter plug 5. The ground wire hardware 12, the live wire hardware 30, and the neutral wire hardware 31 are all located between the first gantry 23 and the second gantry 34. The second gantry 34 is provided with a plug hole 35 corresponding to the three-prong plug 28. The second gantry 34 is provided with a second safety door 36 that covers the live wire hole and the neutral wire hole on the plug hole 35 respectively. The second safety door 36 is elastically slidably connected to the second gantry 34 in the left and right direction.

[0056] like Figure 7 , Figure 8 , Figure 11 , Figure 12 , Figure 13 and Figure 14As shown, a push plate 37 is detachably connected inside the conversion plug 5. The push plate 37 is located on the side of the second gantry 34. A drive block 38 is fixed on the push plate 37. The drive block 38 is located inside the ground wire clamp 25. After the push plate 37 triggers the drive block 38 through the three-pronged insert 2, it is elastically slidably connected to the conversion plug 5 in the front-back direction. A latch 39 is fixed on the push plate 37. The latch 39 passes through the second gantry 34 and abuts against the side of the second safety door 36, so that the second safety door 36 is locked inside the second gantry 34. The part of the latch 39 that passes through the second gantry 34 is slidably connected to the second gantry 34 in the front-back direction.

[0057] One side of the drive block 38 is close to the external insertion area 10, and the other side of the drive block 38 is away from the external insertion area 10. The side of the drive block 38 away from the external insertion area 10 is a downwardly inclined drive surface 40. As the tripod insert 2 is gradually inserted, the push plate 37 acts on the drive surface 40 to push the push plate 37 to slide away from the safety door 2 36, thereby forcing the latch 39 to separate from the safety door 2 36.

[0058] The edge of the second gantry 34 extends outward with a rectangular slide 41 that matches the latch 39. One end of the rectangular slide 41 is close to the second safety door 36, and the other end of the rectangular slide 41 is away from the second safety door 36. A spring is provided inside the rectangular slide 41. One end of the spring is detachably connected to the end of the rectangular slide 41 away from the safety door, and the other end of the spring is detachably connected to one end of the latch 39. The other end of the latch 39 is in contact with the side of the second safety door 36. The latch 39 and the rectangular slide 41 are elastically slidably connected in the front-back direction.

[0059] like Figure 6 , Figure 9 , Figure 10 , Figure 11 and Figure 14 As shown, a limiting post 42 is vertically provided on the edge of the second gantry 34. One end of the limiting post 42 is fixedly connected to the second gantry 34. The edge of the first gantry 23 is provided with a through hole 43 that matches the other end of the limiting post 42. One side of the push plate 37 is close to the second gantry 34, and the other side of the push plate 37 is away from the second gantry 34. The side of the push plate 37 close to the second gantry 34 is provided with a limiting groove 44 that matches the side wall of the limiting post 42.

[0060] like Figure 7 , Figure 8 , Figure 12 , Figure 13 and Figure 14As shown, the external connection area 10 of the adapter plug 5 is also provided with several sets of socket holes 45. The several sets of socket holes 45 and the three-socket holes 28 are evenly distributed along the length of the adapter plug 5 to form a discharge socket, which can meet the power needs of more devices. The adapter plug 5 is detachably connected to several gantry three 46 and safety door three 47, which correspond one-to-one with several sets of socket holes 45. The safety door three 47 and the gantry three 46 are elastically slidably connected in the left and right direction. The gantry three 46 is provided with a rectangular slide rail 41. The rectangular slide rail 41 on the gantry three 46 has the same structure as the rectangular slide rail 41 on the gantry two 34. The push plate 37 is also fixed with several latches 39 that match one-to-one with the rectangular slide rails 41 on the gantry three 46. The latches 39 and the rectangular slide rails 41 are elastically slidably connected in the front and back direction.

[0061] like Figure 9 and Figure 13 As shown, one end of the connecting piece 26 is located on one side of the gantry 23 and is fixedly connected to the ground wire hardware 12. The other end of the connecting piece 26 passes through the gantry 23 and is located on the corresponding other side of the gantry 23. There are two spring pins 9, which are located in the two protrusions 8 and on the left and right sides of the ground wire clamp 25, respectively. There are two resistors 11. One end of the connecting piece 26 that passes through the gantry 23 is electrically connected to the two spring pins 9 through the two resistors 11.

[0062] like Figure 2 , Figure 15 and Figure 16 As shown, a three-pronged plug 48 is fixed on the external plug area 10 of the adapter plug 5. The adapter plug 5 is also equipped with a live wire hardware 30 and a neutral wire hardware 31. The live wire hardware 30, neutral wire hardware 31 and ground wire hardware 12 are all located on the same side of the gantry 23. One end of the live wire hardware 30 is fixedly connected to the corresponding plug on the three-pronged plug 48, and the other end of the live wire hardware 30 corresponds to the live wire hole on the three-pronged hole 24. One end of the neutral wire hardware 31 is fixedly connected to the corresponding plug on the three-pronged plug 48, and the other end of the neutral wire hardware 31 corresponds to the neutral wire hole on the three-pronged hole 24.

[0063] The connecting piece 26 is inserted into the inner wall of the grounding hole on the tripod hole 24. One end of the connecting piece 26 is inclined downward from the grounding hole on the tripod hole 24 toward the opening end of the grounding clamp 25. One end of the connecting piece 26 is located on one side of the gantry 23 and on the side of the grounding clamp 25. The other end of the connecting piece 26 is located on the opposite side of the gantry 23. There is one spring pin 9, which is located inside one of the protrusions 8 and on the side of the grounding clamp 25. There is one resistor 11. The end of the connecting piece 26 located on the opposite side of the gantry 23 is electrically connected to the spring pin 9 through the resistor 11.

[0064] In Example 1, after the charging gun plug 1 is inserted into the slot 6 of the adapter plug 5, the user pushes the locking cover 14 downwards until the locking block 16 on the locking cover 14 is inserted into one end of the L-shaped locking groove 15 and cannot be pushed down further. Then, the locking cover 14 is rotated, causing the locking block 16 to rotate synchronously into the other end of the L-shaped locking groove 15. During the rotation, the locking block 16 is first squeezed by the side wall of the L-shaped locking groove 15 before entering the other end of the L-shaped locking groove 15, so that the locking block 16 is limited without external force. The structure is simple and easy to operate. At the same time, the waterproof ring 13 can seal the gap between the charging gun plug 1 and the slot 6, which helps to ensure the waterproof effect when the charging gun plug 1 and the adapter plug 5 are in contact. This structure is a conventional locking structure, so it will not be described in detail here.

[0065] Example 2, as Figure 1 , Figures 6-14 As shown, the structure of the adapter plug 5 facilitates the discharge of new energy vehicles. In the initial state, the safety door 36, under elastic action, completely covers the live wire and neutral wire holes on the plug hole 35, preventing the insertion of foreign objects and thus improving safety. When the charging gun plug 1 is not inserted into the three-pronged socket 7 in the slot 6, the latch 39 abuts against one side of the safety door 36 under the action of a spring (not shown), causing the corresponding other side to press against the inner wall of the gantry 34. This prevents the safety door 36 from moving left or right and locks it, preventing ordinary plugs from moving. The three-prong plug 28 is inserted into the socket 28 for power supply and safe use. When the charging gun plug 1 is inserted into the three-prong plug 7 in the slot 6, the corresponding prongs on the three-prong prong 2 act on the downwardly inclined drive surface 40. As the three-prong prong 2 is inserted downward, the drive surface 40 generates relative displacement, gradually driving the push plate 37 to overcome the spring force and push outward in the front-back direction, causing it to separate the latch 39 from the safety door 36, thus releasing the lock on the safety door 36 and facilitating normal use of the three-prong plug 28. When an external plug is inserted into the three-prong plug 28 to draw power, the prongs on the external plug gradually push the safety door 36 to the left or right to facilitate insertion into the socket 35. The combined use of the gantry 2 34 and the safety door 36 is a standard safety protection measure for socket use, so its structure will not be described in detail here.

[0066] In Embodiment 3, unlike Embodiment 2, the external insertion area 10 of the adapter 5 is also provided with several sets of socket holes 45, which together with the three-prong socket 28 form a discharge socket. Therefore, when the charging gun plug 1 is not inserted into the three-prong socket 7 in the slot 6, under the action of the spring, several latches 39 respectively abut against one side of the second safety door 36 and one side of the third safety door 47, so that the corresponding other side is close to the inner wall of the second door frame 34 and the third door frame 46, thereby preventing the second safety door 36 and the third safety door 47 from moving left and right and thus locking them. The combined use of the third door frame 46 and the third safety door 47 is a conventional safety protection measure for sockets, so its structure will not be described in detail here. At the same time, the socket holes 45 can be set in the form of three-prong or five-prong, depending on actual needs. The only difference is the required number of safety doors, but it does not affect the structural universality of the push plate 37 of this utility model for locking different numbers of safety doors.

[0067] In Example 4, in Examples 2 and 3, the ground wire hardware 12 is electrically connected to two resistors 11 via connecting piece 26. One of the resistors 11 transmits a signal through a corresponding spring pin 9 and a corresponding probe 4 to identify the discharge signal, so that the charging gun plug 1 can receive the signal and start discharging. Since the five-prong socket 45 has two prongs without a ground signal, it is necessary to toggle the toggle switch 19 on the charging gun plug 1 to generate a simulated ground signal through the circuit board 22. The other resistor 11 then transmits a signal through a corresponding spring pin 9 and a corresponding probe 4 to identify the simulated ground signal, so that the charging gun can start charging, further improving the convenience of use. For sockets with grounding, it is not necessary to toggle the toggle switch 19.

[0068] In Example 5, in Examples 2 and 3, the ground wire clamp 29, one of the live wire clamps 32, and one of the neutral wire clamps 33 are all used to clamp the corresponding prongs on the external plug. The ground wire clamp 25, the other live wire clamp 32, and the other neutral wire clamp 33 are all used to clamp the corresponding prongs on the three-pronged prong 2 on the charging gun plug 1, so that the charging gun plug 1 can discharge to the outside through the adapter 5 after matching with the slot 6. The ground wire clamp 25, the ground wire clamp 29, the live wire clamp 32, and the neutral wire clamp 33 are all conventional structures on the hardware inside the socket that are inserted into the corresponding prongs of the plug. Therefore, they are not described here. The structure will not be described in detail. The ends of the ground wire hardware 12, the live wire hardware 30, and the neutral wire hardware 31 are all bent and recessed towards the three-prong socket 28, which helps to shorten the height of the adapter 5. At the same time, combined with the layout design of the ground wire hardware 12, the live wire hardware 30, and the neutral wire hardware 31, the three-prong socket 7 in the slot 6 and the three-prong socket 28 on the external plug-in area 10 are in opposite directions, which helps to reduce the volume. The two ends of the ground wire hardware 12, the two ends of the live wire hardware 30, and the two ends of the neutral wire hardware 31 form corresponding clamps in opposite directions, which helps to save on material and mold costs.

[0069] Example 6, as Figure 2 , Figure 15 and Figure 16 As shown, when the adapter plug 5 is in the form of a three-prong plug, it facilitates the charging of new energy vehicles. The default rated current of the charging gun plug 1 is basically 16A. When it needs to be used with a 10A external socket for charging, the three-prong plug 2 on the charging gun plug 1 is gradually inserted into the three-prong hole 24 through the three-prong socket 7. The corresponding plug of the three-prong plug 2 acts on the inclined end of the connecting piece 26 and pushes it downward until the three-prong plug 2 is fully inserted into the three-prong hole 24. At this time, the connecting piece 26 and the corresponding plug on the three-prong plug 2 are in close contact, thereby realizing the electrical connection between the connecting piece 26 and the ground wire hardware 12. Since the adapter plug 5 is in the form of a three-prong plug with grounding, only one spring pin 9 and the corresponding probe 4 are needed for signal transmission, so that the charging gun can identify the 10A current and switch the output current to 10A before plugging it into a normal socket for charging. This improves the safety of use, eliminating the need for an additional spring pin 9 to identify the grounding analog signal, and also eliminating the need to toggle the toggle switch 19.

[0070] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A safety connector assembly specifically for charging and discharging new energy vehicles, characterized in that it comprises: The charging gun plug (1) is provided with a three-pronged insert (2) and two cylindrical slots (3), and a probe (4) is fixed in the cylindrical slots (3). The adapter (5) has a slot (6) on one side that matches the charging gun plug (1). The charging gun plug (1) is plugged into and unplugged into the slot (6). The slot (6) has a three-pronged socket (7) that matches the three-pronged plug (2) and two protrusions (8) that are plugged into and unplugged into the two cylindrical slots (3). A spring pin (9) is fixed inside the protrusion (8). The other side of the adapter (5) is an external connection area (10). A resistor (11) and a ground wire hardware (12) are fixed inside the adapter (5). The two ends of the ground wire hardware (12) correspond to the ground wire hole on the three-pronged socket (7) and the external connection area (10) respectively. One end of the spring pin (9) is in contact with the corresponding probe (4) and conducts electricity. The other end of the spring pin (9) is electrically connected to the ground wire hardware (12) through the resistor (11).

2. The new energy vehicle charging and discharging special safety plug-in assembly according to claim 1, characterized in that, The charging gun plug (1) is provided with a waterproof ring (13) and a locking cover (14). The waterproof ring (13) is fixedly connected to the outer wall of the charging gun plug (1). The locking cover (14) is sleeved on the outside of the charging gun plug (1) and rotatably connected to the charging gun plug (1). One end of the charging gun plug (1) is inserted into the slot (6) and locked by the locking cover (14) in cooperation with the outer wall of the slot (6). The waterproof ring (13) is sealed to the open end of the slot (6) under the pressing action of the locking cover (14). The other end of the charging gun plug (1) is fixed with a cable that is electrically connected to the triangular plug and the probe (4) respectively.

3. The new energy vehicle charging and discharging special safety plug-in assembly according to claim 2, characterized in that, The outer wall of the slot (6) is provided with two or more L-shaped locking grooves (15) evenly distributed around the circumference of the slot (6). The L-shaped locking grooves (15) are located at the open end of the slot (6). The inner wall of the lock cover (14) is provided with two or more locking blocks (16) that match the L-shaped locking grooves (15) one by one. The lock cover (14) is provided with a stepped surface (17) corresponding to the waterproof ring (13). After one end of the charging gun plug (1) is inserted into the slot (6), the lock cover (14) is inserted into one end of the corresponding L-shaped locking groove (15) through the locking block (16). Then, the lock cover (14) is rotated to drive the locking block (16) to rotate synchronously and squeeze into the other end of the L-shaped locking groove (15) to lock. The waterproof ring (13) seals the open end of the slot (6) under the pressing action of the stepped surface (17).

4. The new energy vehicle charging and discharging special safety plug-in assembly according to claim 2, characterized in that, The charging gun plug (1) includes a bracket plate (18), the three-pronged insert (2) is fixedly connected to the bracket plate (18) and located on one side of the bracket plate (18), and a toggle switch (19) is also provided on one side of the bracket plate (18). A cover (20) and a rubber coating (21) are respectively provided on the other side of the bracket plate (18). The cover (20) is located on the side of the three-pronged insert (2). The cover (20) is fixedly connected to the bracket plate (18) and forms an isolation cavity. A circuit board (22) is provided in the isolation cavity. The toggle switch (19) is electrically connected to the cable through the circuit board (22). The toggle switch (19) is located in the isolation cavity. The cover (20) is located in the rubber coating (21). The bracket plate (18) is fixedly connected to the cable after being coated by the rubber coating (21) and forms an integral part. The waterproof ring (13) is located on the rubber coating (21) and forms an integral part with the rubber coating (21).

5. The new energy vehicle charging and discharging special safety plug-in assembly according to claim 1, characterized in that, The adapter (5) is detachably connected to a gantry (23). The gantry (23) has a three-pronged hole (24) corresponding to the three-pronged socket (7). The grounding hardware (12) is located on one side of the gantry (23). One end of the grounding hardware (12) is located in the external plug-in area (10). The other end of the grounding hardware (12) is integrally formed with a grounding clamp (25) corresponding to the grounding hole on the three-pronged hole (24). The spring pin (9) and the resistor (11) are both located on the other side of the gantry (23) corresponding to the spring pin. One end of the spring pin (9) is located inside the protrusion (8), and the other end of the spring pin (9) is fixedly connected to the first gantry (23). One end of the resistor (11) is fixedly connected to the spring pin (9), and the other end of the resistor (11) is fixed with a connecting piece (26) that is electrically connected to the ground wire hardware (12). On the other side of the first gantry (23), a safety door (27) is provided that covers the live wire hole and the neutral wire hole on the tripod hole (24). The safety door (27) is elastically slidably connected to the first gantry (23) under the drive of the tripod insert (2).

6. The new energy vehicle charging and discharging special safety plug-in assembly according to claim 5, characterized in that, The adapter (5) has three sockets (28) on its external insertion area (10). One end of the grounding hardware (12) is integrally formed with a grounding clamp (29). The grounding clamp (29) is located within the corresponding hole of the three sockets (28). The other end of the grounding hardware (12) is bent and sunk towards the three sockets (28) and fixedly connected to the grounding clamp (25). The grounding clamp (25) The ground wire clamp (29) is located on both sides opposite to the ground wire hardware (12). The conversion plug (5) is fixed with live wire hardware (30) and neutral wire hardware (31). The live wire hardware (30) and neutral wire hardware (31) are arranged in an X-shape. The ground wire hardware (12), live wire hardware (30), and neutral wire hardware (31) are distributed sequentially from the gantry (23) towards the external plug-in area (10) in a hierarchical manner. The wire hardware (30) has two integrally formed wire clamps (32) at its two ends. The two wire clamps (32) are located on opposite sides of the wire hardware (30). One wire clamp (32) is confined to the corresponding hole of the three-prong socket (28). The other wire clamp (32) is bent and lowered from the end of the wire hardware (30) toward the three-prong socket (28) to correspond to the wire hole on the three-prong hole (24). The two ends of the neutral wire hardware (31) are integrally formed with neutral wire clamps (33). The two neutral wire clamps (33) are located on opposite sides of the neutral wire hardware (31). One of the neutral wire clamps (33) is located in the corresponding hole of the three-pin socket (28). The other neutral wire clamp (33) is bent and sunk from the end of the neutral wire hardware (31) toward the three-pin socket (28) and corresponds to the neutral wire hole on the three-pin hole (24).

7. A safety connector assembly for charging and discharging new energy vehicles according to claim 6, characterized in that, The adapter (5) is detachably connected to a second gantry (34). The first gantry (23) is located on one side of the adapter (5), and the second gantry (34) is located on the other side of the adapter (5). The ground wire hardware (12), the live wire hardware (30), and the neutral wire hardware (31) are all located between the first gantry (23) and the second gantry (34). The second gantry (34) is provided with a plug hole (35) corresponding to the three plug holes (28). The second gantry (34) is provided with a safety door (36) that covers the live wire hole and the neutral wire hole on the plug hole (35). The safety door (36) and the second gantry (34) are elastically slidably connected in the left and right direction.

8. The new energy vehicle charging and discharging special safety plug-in assembly according to claim 7, characterized in that, A push plate (37) is detachably connected inside the conversion plug (5). The push plate (37) is located on the side of the second gantry (34). A drive block (38) is fixed on the push plate (37). The drive block (38) is located inside the ground wire clamp (25). After the push plate (37) triggers the drive block (38) through the three-legged insert (2), it is elastically slidably connected to the conversion plug (5) in the front-back direction. A latch (39) is fixed on the push plate (37). The latch (39) passes through the second gantry (34) and abuts against the side of the second safety door (36), so that the second safety door (36) is locked inside the second gantry (34). The part of the latch (39) that passes through the second gantry (34) is slidably connected to the second gantry (34) in the front-back direction.

9. The new energy vehicle charging and discharging safety plug-in assembly according to claim 8, characterized in that, One side of the drive block (38) is close to the external insertion area (10), and the other side of the drive block (38) is far away from the external insertion area (10). The side of the drive block (38) away from the external insertion area (10) is a downwardly inclined drive surface (40). The push plate (37) acts on the drive surface (40) during the gradual insertion of the tripod insert (2) to push the push plate (37) to slide away from the second safety door (36), thereby forcing the latch (39) to separate from the second safety door (36).

10. The new energy vehicle charging and discharging special safety plug-in assembly according to claim 8, characterized in that, The edge of the second gantry (34) extends outward with a rectangular slide (41) that matches the latch (39). One end of the rectangular slide (41) is close to the second safety door (36), and the other end of the rectangular slide (41) is away from the second safety door (36). A spring is provided inside the rectangular slide (41). One end of the spring is detachably connected to the end of the rectangular slide (41) away from the safety door, and the other end of the spring is detachably connected to one end of the latch (39). The other end of the latch (39) is in contact with the side of the second safety door (36). The latch (39) and the rectangular slide (41) are elastically slidably connected in the front-back direction.

11. A safety plug-in assembly for charging and discharging new energy vehicles according to claim 8, 9, or 10, characterized in that, The second gantry (34) is provided with a limiting post (42) on its edge. One end of the limiting post (42) is fixedly connected to the second gantry (34). The edge of the first gantry (23) is provided with a through hole (43) that matches the other end of the limiting post (42). One side of the push plate (37) is close to the second gantry (34), and the other side of the push plate (37) is away from the second gantry (34). The side of the push plate (37) close to the second gantry (34) is provided with a limiting groove (44) that matches the side wall of the limiting post (42).

12. The new energy vehicle charging and discharging special safety plug-in assembly according to claim 10, characterized in that, The external insertion area (10) of the conversion plug (5) is also provided with several sets of plug holes (45). The several sets of plug holes (45) and the three-hole socket (28) are evenly distributed along the length direction of the conversion plug (5) to form a discharge plug. The conversion plug (5) is detachably connected to several gantry three (46) and safety door three (47) that correspond one-to-one with several sets of plug holes (45). The safety door three (47) and gantry three (46) are elastically slidably connected in the left and right direction. The gantry three (46) is provided with a rectangular slide rail (41). The rectangular slide rail (41) on the gantry three (46) has the same structure as the rectangular slide rail (41) on the gantry two (34). The push plate (37) is also fixed with several latches (39) that match one-to-one with the rectangular slide rails (41) on several gantry three (46). The latches (39) and rectangular slide rails (41) are elastically slidably connected in the front and back direction.

13. The new energy vehicle charging and discharging special safety plug-in assembly according to claim 6, characterized in that, One end of the connecting piece (26) is located on one side of the gantry (23) and is fixedly connected to the grounding hardware (12). The other end of the connecting piece (26) passes through the gantry (23) and is located on the opposite side of the gantry (23). There are two spring pins (9). The two spring pins (9) are located in the two protruding pillars (8) and on the left and right sides of the grounding clamp (25). There are two resistors (11). One end of the connecting piece (26) that passes through the gantry (23) is electrically connected to the two spring pins (9) through the two resistors (11).

14. The new energy vehicle charging and discharging special safety plug-in assembly according to claim 5, characterized in that, The adapter (5) has a three-pronged plug plate 2 (48) fixed on its external plug area (10). The adapter (5) also has a live wire hardware (30) and a neutral wire hardware (31). The live wire hardware (30), neutral wire hardware (31) and ground wire hardware (12) are all located on the same side of the gantry (23). One end of the live wire hardware (30) is fixedly connected to the corresponding plug plate on the three-pronged plug plate 2 (48). The other end of the live wire hardware (30) corresponds to the live wire hole on the three-pronged hole (24). One end of the neutral wire hardware (31) is fixedly connected to the corresponding plug plate on the three-pronged plug plate 2 (48). The other end of the neutral wire hardware (31) corresponds to the neutral wire hole on the three-pronged hole (24).

15. The new energy vehicle charging and discharging special safety plug-in assembly according to claim 14, characterized in that, The connecting piece (26) is inserted into the inner wall of the grounding hole on the tripod hole (24). One end of the connecting piece (26) is inclined downward from the grounding hole on the tripod hole (24) toward the opening end of the grounding clamp (25). One end of the connecting piece (26) is located on one side of the gantry (23) and on the side of the grounding clamp (25). The other end of the connecting piece (26) is located on the opposite side of the gantry (23). There is one spring pin (9). The spring pin (9) is located inside one of the protrusions (8) and on the side of the grounding clamp (25). There is one resistor (11). The end of the connecting piece (26) on the opposite side of the gantry (23) is electrically connected to the spring pin (9) through the resistor (11).

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