A new energy charging pile quick plug-in connector

Abstract

The utility model discloses a new energy charging pile quick -plug formula connector belongs to new energy automobile charging supporting facilities technical field. It aims at solving the problem of the existing technology that charging pile body cable is heavy and is easy to cause the plug to loosen and accidental drop, including charging pile body, wiring port, electric wire, socket, plug and the locking mechanism of fixed connection on the socket. The locking mechanism includes the shell, and the shell is rotatably connected with the rotating plate, the rotating plate is set up in the fixed shaft outer periphery, the plug side fixedly connected with the locking bolt, and the locking bolt is provided with the limiting hole for the rotating plate joint cooperation. The rotating plate one end and shell inner wall are connected with spring no. 1. The utility model discloses the locking mechanism of setting automatic locking function, solved the problem of the insufficient reliability of plug connection, realized the technical effect that the plug inserts and is automatically locked, and the pressing push -on plate unlocking, the security of charging process and the stability of connection have been improved significantly.

Description

Technical Field

[0001] This utility model relates to the technical field of charging facilities for new energy vehicles, and in particular to a quick-connect connector for new energy charging piles. Background Technology

[0002] With the rapid development of the new energy vehicle industry, charging piles, as the infrastructure that ensures the normal operation of electric vehicles, are becoming increasingly widespread. In daily charging operations, the charging connector (i.e., the plug and socket) is the key interface for realizing power transmission, and the stability and safety of its connection directly determine whether the charging process can proceed smoothly.

[0003] In practical applications, existing new energy charging pile connectors typically use a direct plug-in connection method. However, to meet the demands of high-current fast charging, the accompanying charging cables often have a thicker wire diameter and a higher internal conductor density, resulting in a heavier overall weight. After the plug is inserted into the socket, the heavy cable exerts a continuous downward pulling force on the connection points.

[0004] Most conventional quick-connect structures on the market lack effective rigid mechanical locking mechanisms, relying solely on friction between the pins and sockets or simple elastic clips to maintain the connection. When the connector is subjected to prolonged tension from the cable's own weight, or encounters external interference such as wind, shaking, or accidental contact in outdoor environments, the plug is prone to loosening or even detaching from the socket. This not only interrupts charging and affects the user experience, but more seriously, accidental disconnection under load can easily lead to arcing or overheating due to excessive contact resistance, posing a serious safety hazard. Therefore, a quick-connect connector for new energy charging piles is proposed to address these issues. Utility Model Content

[0005] In view of the problems of high risk of plug loosening and accidental detachment due to cable weight and insufficient connection reliability in the existing quick-connect connectors for new energy charging piles, this utility model aims to provide a quick-connect connector for new energy charging piles with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a quick-connect connector for new energy charging piles, including: a charging pile body, a wiring port, a wire, a socket, a plug; and a locking mechanism.

[0007] A locking mechanism is fixedly connected to the outer wall of the socket. The locking mechanism includes a housing, and a rotating plate is rotatably connected inside the housing. The rotating plate is sleeved on the outer periphery of a fixed shaft fixedly connected inside the housing. An extending locking pin is fixedly connected to the side of the plug. The locking pin is slidably inserted into the side wall of the housing. A limit hole is opened on the side wall of the locking pin. One end of the rotating plate engages with the side of the locking pin.

[0008] Preferably, a push plate is slidably connected to the side wall of the outer casing, and a connecting plate is fixedly connected to one end of the push plate inside the outer casing. The end of the connecting plate abuts against the side of the rotating plate. Furthermore, a spring is connected between the end of the rotating plate away from the fixed axis and the inner wall of the outer casing. The spring is in a compressed or stretched state to drive the rotating plate to maintain a tendency to return to its original position towards the locking pin. The plug, the socket, and the locking mechanism are combined through an automatic snap-fit ​​mechanism between the locking pin and the rotating plate, achieving automatic mechanical locking after the plug is inserted.

[0009] Preferably, the rotating plate is precisely designed in shape and size so that when the plug is inserted into the socket, the rotating plate can quickly engage with the locking pin limiting hole under the action of the spring, thereby rigidly restricting the locking pin in the pull-out direction, effectively preventing the plug from accidentally coming out and enhancing the reliability of the connection.

[0010] Preferably, a second spring post is fixedly connected to the inner wall of the outer casing, and a third spring is sleeved on the outer periphery of the second spring post. The two ends of the third spring abut against the inner wall of the outer casing and the inner side of the push plate, respectively. The inner side of the push plate is sleeved on the outer periphery of the second spring post. This structural design ensures that after the operator releases the pressing pressure, the third spring provides sufficient thrust to quickly return the push plate and connecting plate to their initial positions, preparing for the next locking operation.

[0011] Preferably, a spring post one is fixedly connected to the bottom surface inside the outer casing, and a spring two is sleeved on the outer periphery of the spring post one. When the locking pin is inserted into the outer casing, its bottom surface slides against the top of the spring two. The spring two acts as a buffer element, effectively absorbing the impact force generated when the locking pin is pushed in quickly, protecting the internal parts from excessive impact, and providing a certain auxiliary pushing force for the pull-out operation.

[0012] Preferably, the quick-connect connector for new energy charging piles further includes a fixing mechanism, which includes a fixing plate fixedly connected to the side wall of the charging pile body, and a cable hanging plate fixedly connected to the side of the fixing plate away from the charging pile body. The fixing mechanism is designed to provide additional storage and load-bearing support for heavy cables, thereby reducing the tension on the main electrical connection points.

[0013] Preferably, the surface of the hanging plate has a limiting groove that penetrates the plate body, and a movable rod slides and rotates through the hanging plate. The end of the movable rod is fixedly connected to a limiting plate. The movable rod and the limiting plate, together with the limiting groove, form a mechanical limiting structure that can be opened and locked.

[0014] Preferably, the width of the limiting plate is greater than the width of the limiting groove, and the shape of the limiting plate is adapted to the shape of the limiting groove. When the plane of the limiting plate is parallel to the plane of the limiting groove, the limiting plate passes through the hanging plate along the limiting groove to open the hanging space.

[0015] Preferably, the moving rod is rotated 90 degrees so that the limiting plate and the limiting groove form a snap-fit ​​engagement. The geometric dimensions of the limiting plate are used to firmly restrict the wire to the hanging plate and prevent the cable from slipping off.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model, by setting up a locking mechanism composed of a rotating plate, a locking pin, a spring, and a pushing plate, utilizes the structure that the locking pin pushes the rotating plate to rotate when the plug is inserted and automatically resets and locks into the limiting hole when aligned. This solves the safety hazard problem of existing charging pile connectors lacking a reliable mechanical locking structure, which is prone to loosening, disconnection, or even electric sparks due to external touch, cable dragging, or misoperation. It achieves the technical effect of automatic locking upon plug insertion, a firm and reliable connection, and the need for active pressing to unlock, significantly improving the safety and stability of the charging process.

[0018] 2. This utility model solves the problem of traditional charging pile cables slipping easily when directly suspended due to their large size and weight, and poor contact caused by prolonged suspension. It achieves the technical effect of firmly restraining and storing cables, distributing the stress on the connection port, and preventing accidental cable detachment.

[0019] 3. This utility model solves the problems of damage to parts caused by rigid collision between the locking pin and the bottom of the housing during rapid insertion, as well as the difficulty in pulling out the plug, by setting a spring and spring post structure on the bottom surface inside the housing to cooperate with the locking pin. It achieves the technical effect of providing flexible buffer protection for the locking pin, extending the service life of the equipment, and providing auxiliary push-out force when pulling out the plug, thus optimizing the insertion and removal feel and operating experience. Attached Figure Description

[0020] Figure 1This is a three-dimensional schematic diagram of a quick-connect connector for a new energy charging pile proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the limiting plate structure of a quick-connect connector for a new energy charging pile proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the outer shell of a quick-connect connector for a new energy charging pile proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the spring three in a quick-connect connector for a new energy charging pile proposed in this utility model.

[0024] Legend:

[0025] 1. Charging pile body; 2. Wiring port; 3. Wire; 4. Socket; 5. Locking mechanism; 51. Outer shell; 52. Push plate; 53. Connecting plate; 54. Spring 1; 55. Rotating plate; 56. Fixed shaft; 57. Spring 2; 58. Spring post 1; 59. Locking pin; 510. Limiting hole; 511. Spring post 2; 512. Spring 3; 6. Fixing mechanism; 61. Moving rod; 62. Limiting plate; 63. Limiting groove; 7. Fixing plate; 8. Hanging plate; 9. Plug.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example:

[0027] Reference Figures 1 to 4 This utility model provides a quick-connect connector for new energy charging piles, which aims to solve the problems in the prior art where the charging pile body wires are heavy and easily fall off, and the lack of a reliable mechanical locking structure between the plug and the socket makes them easy to loosen and break.

[0028] A quick-connect connector for a new energy charging pile includes a charging pile body 1 and a wiring port 2 fixedly connected to the side of the charging pile body 1. A wire 3 is fixedly connected to the wiring port 2, and a plug 9 is fixedly connected to the end of the wire 3 away from the wiring port 2. A socket 4 is also fixedly connected to the side of the charging pile body 1. The plug 9 is inserted into the socket 4 for use. A locking mechanism 5 is fixedly connected to the outer wall of the socket 4. The locking mechanism 5 is used to automatically lock the plug 9 mechanically after the plug 9 is inserted into the socket 4 to prevent the plug 9 from accidentally coming out. At the same time, a fixing mechanism 6 is also provided on the side of the charging pile body 1. The fixing mechanism 6 is used to suspend and limit the wire 3 and share the tension generated by the weight of the wire 3.

[0029] The locking mechanism 5 includes a housing 51 fixedly disposed beside the socket 4. A rotating plate 55 is rotatably connected inside the housing 51, and a fixed shaft 56 is fixedly connected inside the housing 51. The rotating plate 55 is sleeved on the outer periphery of the fixed shaft 56 and can rotate circumferentially around the fixed shaft 56. A locking pin 59 extending outward is fixedly connected to the side of the plug 9. The locking pin 59 is slidably inserted into the side wall of the housing 51 and extends into the housing 51. A through or recessed limiting hole 510 is opened on the side wall of the locking pin 59. One end of the rotating plate 55 engages with the side of the locking pin 59. When the rotating plate 55 rotates to a specific angle, it can engage with the limiting hole 510 to limit the displacement of the locking pin 59. A push plate 52 is slidably connected to the side wall of the housing 51. Part of the push plate 52 is located outside the housing 51 for the operator to press. A connecting plate 53 is fixedly connected to the end of the push plate 52 located inside the housing 51. The end of the connecting plate 53 abuts against the side of the rotating plate 55. The push plate 52 drives the connecting plate 53 to move, which in turn drives the rotating plate 55 to rotate around the fixed shaft 56. The end of the rotating plate 55 away from the fixed shaft 56 is connected to the inner wall of the outer shell 51 by a spring 54. The spring 54 is in a compressed or stretched state. The elastic restoring force of the spring 54 drives the rotating plate 55 to always maintain the tendency to return to the locking pin 59, thereby realizing the automatic locking function. The inner wall of the outer shell 51 is fixedly connected to the spring post 511. The inner side of the push plate 52 is sleeved on the outer circumference of the spring post 511 and can slide along the axial direction of the spring post 511. The outer circumference of the spring post 511 is sleeved with a spring 512. The two ends of the spring 512 abut against the inner wall of the outer shell 51 and the inner side of the push plate 52, respectively. When the external force presses the push plate 52, the push plate 52 slides inward along the spring post 511 and compresses the spring 512. When the external force is removed, the spring 512 uses its own elastic restoring force to push the push plate 52 and the connecting plate 53 to return to the original position.

[0030] A spring post 58 is fixedly connected to the bottom surface inside the outer casing 51. A spring 57 is sleeved on the outer periphery of the spring post 58. When the locking pin 59 is inserted into the outer casing 51, its bottom surface slides against the top of the spring 57. The spring 57 is used to provide buffer or support for the locking pin 59 to prevent the locking pin 59 from directly hitting the bottom of the outer casing 51. At the same time, the spring 57 can provide an auxiliary pushing force when the plug 9 is pulled out.

[0031] When the plug 9 is fully inserted into the socket 4, the locking pin 59 extends into the housing 51. The front end of the locking pin 59 first contacts and presses against the rotating plate 55, forcing the rotating plate 55 to deflect around the fixed axis 56 against the elastic force of the spring 54. As the locking pin 59 continues to extend until the limiting hole 510 on the side wall of the locking pin 59 moves to the position aligned with the rotating plate 55, the rotating plate 55 is no longer blocked by the side wall of the locking pin 59. Under the action of the spring 54, it quickly reverses and locks into the limiting hole 510. At this time, the rotating plate 55 and the limiting hole 510 form a locking engagement, restricting the locking pin 59 from being pulled out. The plug 9 is moved to the socket 4, thus securing it firmly. When the plug 9 needs to be unplugged, the operator presses the push plate 52, which moves the connecting plate 53 inward. The end of the connecting plate 53 pushes against the side of the rotating plate 55, forcing the rotating plate 55 to overcome the resistance of the spring 54 and rotate around the fixed shaft 56 again. This causes the end of the rotating plate 55 to disengage from the upper limit hole 510 of the locking pin 59, releasing the locking state of the locking pin 59. At this time, the plug 9 can be unplugged from the socket 4. After releasing the push plate 52, the push plate 52 and the connecting plate 53 automatically reset under the action of the spring 512, waiting for the next operation.

[0032] The fixing mechanism 6 includes a fixing plate 7 fixedly connected to the side wall of the charging pile body 1. A hanging plate 8 is fixedly connected to the side of the fixing plate 7 away from the charging pile body 1. The hanging plate 8 is used to wind and store the power supply line 3. The hanging plate 8 supports the weight of the wire 3, thereby reducing the stress on the connection of the wiring port 2 and the plug 9.

[0033] The surface of the hanging plate 8 is provided with a limiting groove 63 that penetrates the plate body. The limiting groove 63 is designed to be a rectangular hole or an oblong hole. A moving rod 61 is slidably and rotatably inserted on the hanging plate 8. The moving rod 61 passes through the limiting groove 63 and can move back and forth along the axis of the limiting groove 63 and rotate around its own axis. The end of the moving rod 61 away from the hanging plate 8 is fixedly connected to a limiting plate 62. The shape of the limiting plate 62 is adapted to the shape of the limiting groove 63, and the width of the limiting plate 62 is greater than the width of the limiting groove 63.

[0034] Based on the cooperation between the movable rod 61 and the limiting plate 62, when it is necessary to fix the wire 3, the operator rotates the movable rod 61 to drive the limiting plate 62 to rotate until the plane of the limiting plate 62 is parallel and aligned with the plane of the limiting groove 63. At this time, the movable rod 61 is pulled outward so that the limiting plate 62 passes through the hanging plate 8 along the limiting groove 63, thereby opening the hanging space. After the wire 3 is wrapped and placed on the hanging plate 8, the movable rod 61 is pushed back in the opposite direction and rotated 90 degrees again, so that the limiting plate 62 and the limiting groove 63 form a cross-shaped locking fit. The limiting plate 62 is used to prevent the movable rod 61 from coming out, thereby creating a closed space to restrict the wire 3 on the hanging plate 8 and prevent the wire 3 from slipping outward.

[0035] Working principle: When the charging pile needs to be used, the operator drags the plug 9 on the power cord 3 and inserts it into the socket 4 fixed on the right side of the charging pile 1. During the insertion of the plug 9, the locking pin 59 fixed on the plug 9 pushes the rotating plate 55 due to the thrust. The rotating plate 55 rotates under the action of the fixed shaft 56, overcoming the elastic force of the spring 1 54. At the same time, the bottom of the locking pin 59 abuts against the top of the spring 2 57, which provides buffer support. As the plug 9 is fully inserted, the locking pin 59 moves to the predetermined position. The limiting hole 510 on the locking pin 59 just stops applying pressure to the rotating plate 55. At this time, the spring 1 54 opens outward, and the elastic restoring force makes the rotating plate 55 return to its original position. One end of the rotating plate 55 is inserted into the limiting hole 510, thereby locking the locking pin 59 and preventing it from moving in the pull-out direction, thus achieving automatic rigid locking.

[0036] When it is time to pull out the plug 9, the operator presses the push plate 52. The push plate 52 applies pressure to the connecting plate 53. The connecting plate 53 abuts against and pushes the rotating plate 55. The rotating plate 55 rotates again on the fixed shaft 56, and the part that is stuck in the limit hole 510 disengages, unlocking the locking pin 59. At this time, the operator can pull out the plug 9. After releasing the push plate 52, the spring 3 512 outside the spring column 2 511 generates a thrust to make the push plate 52 and the connecting plate 53 automatically reset.

[0037] After plug 9 is used, the operator first rotates the moving rod 61, causing the limiting plate 62 on the moving rod 61 to rotate 90 degrees, so that the plane of the limiting plate 62 is parallel and aligned with the plane of the limiting groove 63 on the hanging plate 8. At this time, the moving rod 61 is pulled out axially, and the limiting plate 62 passes through the limiting groove 63, thereby opening the hanging space. Then the wire 3 is wrapped around the hanging plate 8. After that, the operator pushes the moving rod 61 back, so that the limiting plate 62 on the moving rod 61 passes through the limiting groove 63 again, and rotates the moving rod 61, so that the limiting plate 62 and the limiting groove 63 form a snap-fit ​​engagement. The limiting plate 62 prevents the moving rod 61 from coming out, thereby fixing the wire 3 on the hanging plate 8, making it difficult for it to fall off, and effectively preventing the wire 3 from slipping off the hanging plate 8 due to its own thickness.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-connect connector for new energy charging piles, comprising: A charging pile body (1) is provided with a wiring port (2) fixedly connected to its side. A wire (3) is connected to the wiring port (2). A plug (9) is fixedly connected to one end of the wire (3) away from the wiring port (2). The side of the charging pile body (1) is also fixedly connected to a socket (4), and the plug (9) is inserted into the socket (4); The feature is that a locking mechanism (5) is fixedly connected to the outer wall of the socket (4), the locking mechanism (5) includes a housing (51), a rotating plate (55) is rotatably connected inside the housing (51), and the rotating plate (55) is sleeved on the outer periphery of a fixed shaft (56) fixedly connected inside the housing (51); The plug (9) has an extended locking pin (59) fixedly connected to its side. The locking pin (59) is slidably inserted into the side wall of the housing (51). The side wall of the locking pin (59) has a limiting hole (510). One end of the rotating plate (55) is engaged with the side of the locking pin (59).

2. The quick-connect connector for new energy charging piles according to claim 1, characterized in that, A push plate (52) is slidably connected to the side wall of the outer shell (51). A connecting plate (53) is fixedly connected to one end of the push plate (52) located inside the outer shell (51). The end of the connecting plate (53) abuts against the side of the rotating plate (55). A spring (54) is connected between the end of the rotating plate (55) away from the fixed shaft (56) and the inner wall of the outer shell (51). The spring (54) is in a compressed or stretched state to drive the rotating plate (55) to reset in the direction of the locking pin (59).

3. The quick-connect connector for new energy charging piles according to claim 2, characterized in that, When the plug (9) is inserted into the socket (4) in place, the rotating plate (55) is engaged in the limiting hole (510) under the action of the spring (54) to restrict the locking pin (59) from moving in the pull-out direction.

4. The quick-connect connector for new energy charging piles according to claim 2, characterized in that, A second spring post (511) is fixedly connected to the inner wall of the outer shell (51). A third spring (512) is sleeved on the outer periphery of the second spring post (511). The two ends of the third spring (512) abut against the inner wall of the outer shell (51) and the inner side of the push plate (52). The inner side of the push plate (52) is sleeved on the outer periphery of the second spring post (511).

5. The quick-connect connector for new energy charging piles according to claim 1, characterized in that, A spring post one (58) is fixedly connected to the inner bottom surface of the outer shell (51). A spring two (57) is sleeved on the outer periphery of the spring post one (58). When the locking pin (59) is inserted into the inner shell (51), its bottom surface slides against the top of the spring two (57). The spring two (57) is used to provide buffer or support for the locking pin (59).

6. The quick-connect connector for new energy charging piles according to claim 1, characterized in that, The side of the charging pile body (1) is also provided with a fixing mechanism (6), which includes a fixing plate (7) fixedly connected to the side wall of the charging pile body (1), and a hanging plate (8) is fixedly connected to the side of the fixing plate (7) away from the charging pile body (1).

7. The quick-connect connector for new energy charging piles according to claim 6, characterized in that, The surface of the hanging plate (8) is provided with a through limiting groove (63), and a moving rod (61) is slidably and rotatably passed through the hanging plate (8). The end of the moving rod (61) is fixedly connected to a limiting plate (62).

8. The quick-connect connector for new energy charging piles according to claim 7, characterized in that, The width of the limiting plate (62) is greater than the width of the limiting groove (63), and the shape of the limiting plate (62) is adapted to the shape of the limiting groove (63). When the plane of the limiting plate (62) is parallel to the plane of the limiting groove (63), the limiting plate (62) passes through the hanging plate (8) along the limiting groove (63).

9. The quick-connect connector for new energy charging piles according to claim 8, characterized in that, After the moving rod (61) rotates 90 degrees, the limiting plate (62) and the limiting groove (63) form a snap-fit ​​engagement to restrict the wire (3) on the hanging plate (8).

Images