Self-locking U-shaped connector for new energy automobile

Abstract

The invention relates to the technical field of new energy automobile connectors, and discloses a self-locking U-shaped connector for a new energy automobile, which comprises a socket end and a plug end, the plug end is inserted into the socket end, a self-locking mechanism is fixedly mounted on the outer side of the plug end, an auxiliary matching rod is connected to one side, far away from the plug end, of the self-locking mechanism, and the auxiliary matching rod is connected with the socket end. A reset mechanism is arranged on the self-locking mechanism, and a control mechanism is connected between the auxiliary matching rod and the reset mechanism. Through the arrangement of the self-locking mechanism, in the continuous butt joint process of the socket end and the plug end, rotation of the auxiliary matching rod can drive the self-locking assembly to rotate synchronously, then through continuous meshing of the clamping rod and the ratchet groove in the inner side of the ratchet wheel ring, the auxiliary matching rod can rotate in the opposite direction, and continuous locking is achieved; according to the utility model, the existing single-point locking mode is changed, so that the locking is stable, and the problems of poor contact and even loosening easily caused by abrasion of the existing single-point locking latch hook and deformation of the boss are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle connectors, and specifically to a self-locking U-shaped connector for new energy vehicles. Background Art

[0002] As a core component of the high-voltage system, charging module, and signal transmission of new energy vehicles, the connector undertakes the transmission requirements of high voltage (such as an 800V fast charging system) and large current (≥250A), and at the same time needs to adapt to complex working conditions such as vibration and humidity. However, traditional connectors generally adopt interference fit or threaded locking structures, which have problems such as rapid attenuation of locking degree and complex operation, resulting in insufficient connection stability and easy to cause safety hazards such as increased contact resistance and arc discharge.

[0003] The locking method of the existing U-shaped connectors for new energy vehicles generally forms a limiting groove through a cable hook and a boss for stable locking. However, relying on the design of single-point mechanical engagement, during the insertion and extraction of the connector and under the influence of long-term vibration, it is easy to cause wear of the locking hook and deformation of the boss, and then it is easy to cause poor contact or even loosening. At the same time, using single-point locking, the probability of its falling off and loosening is relatively large, and the self-locking effect is not very ideal. Summary of the Invention

[0004] The purpose of the present invention is to provide a self-locking U-shaped connector for new energy vehicles to solve the problems raised in the background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A self-locking U-shaped connector for new energy vehicles, including a socket end and a plug end. The plug end is inserted into the socket end. A self-locking mechanism is fixedly installed on the outer side of the plug end. One side of the self-locking mechanism away from the plug end is fixedly connected with an auxiliary mating rod. A reset mechanism is arranged on the self-locking mechanism. A control mechanism is connected between the auxiliary mating rod and the reset mechanism; The self-locking mechanism includes a circular outer shell, a mounting shaft, a removal mechanism, a self-locking component, a bottom plate, and a ratchet ring. The outer side of the plug end is fixedly connected with the bottom plate. One side of the bottom plate away from the plug end is fixedly connected with a ratchet ring. One side of the bottom plate away from the plug end and outside the ratchet ring is fixedly connected with a circular outer shell. The inner side of the bottom plate is rotatably connected with a self-locking component. One side of the self-locking component away from the bottom plate is fixedly connected with a mounting shaft. The inner side of the mounting shaft is fixedly connected with a removal mechanism; Through the cooperation between the self-locking mechanism and the control mechanism, continuous self-locking of the connector is achieved.

[0006] Further, the socket end includes a socket body and socket high-voltage terminals. The socket high-voltage terminals are fixedly installed inside the socket body; The plug end includes a plug body and a plug high-voltage terminal. The plug high-voltage terminal is fixedly installed on the inner side of the plug body. The plug high-voltage terminal corresponds to the socket high-voltage terminal. The plug body corresponds to the socket body. A protrusion is provided on the socket body, and a groove corresponding to the protrusion is provided on the plug body.

[0007] The groove on the high-voltage terminal of the plug is aligned with the protrusion on the socket body, and then the high-voltage terminal of the plug is clamped with the high-voltage terminal of the socket. During the process of the plug end being continuously inserted into the socket end, since the socket body is provided with a circular block and the auxiliary matching rod is provided with an arc groove corresponding to the cylindrical block, the cylindrical block slides in the arc groove, pushing the auxiliary matching rod to rotate; so that the distal end of the auxiliary matching rod gradually approaches the plug body; Furthermore, the self-locking assembly includes a fixing ring 1, a fixing ring 2, a guide shell, a bottom cover, a clamping block, a spring 1, a circular block, a push rod, a clamping rod, a protrusion, and a guide column. The inner side of the bottom plate is rotatably connected to the fixing ring 2, the side of the fixing ring 2 close to the plug end is fixedly connected to the circular block, the side of the fixing ring 2 away from the plug end is fixedly connected to the fixing ring 1, the inner sides of the fixing ring 2 and the fixing ring 1 are installed with a guide shell, the bottom cover is fixedly installed on one side of the guide shell, and the inner side of the guide shell is slidably connected with the clamping rod.

[0008] Furthermore, a clamping block is fixedly installed on the clamping rod and the bottom cover, a spring is provided between the bottom cover and the clamping rod and on the outside of the clamping block, a push rod is fixedly connected to the outside of the clamping rod, a protrusion and a guide column are fixedly connected to the side of the clamping rod away from the plug end, and sliding grooves corresponding to the push rod and the guide column are respectively provided on the guide shell, and the fixing ring is fixedly connected to the mounting shaft.

[0009] When the auxiliary matching rod gradually rotates, the auxiliary matching rod drives the installation shaft fixedly connected thereto to rotate synchronously, and the installation shaft drives the self-locking assembly to rotate synchronously while rotating. When the self-locking assembly rotates, since the clamping rod is provided with an inclined surface corresponding to the ratchet groove of the ratchet ring, the clamping rod slides back and forth on the inner side of the guide housing under the action of the ratchet groove, the action of the spring and the guiding action of the guide column. At the same time, when the clamping rod is engaged with the ratchet groove, the self-locking assembly can be locked in the opposite direction; When the plug end and the socket end are plugged into place, the distal end of the auxiliary matching rod rotates to a position parallel to the plug body. At this time, the clamping rod engages with the ratchet groove on the inner side of the ratchet ring to lock the connector. At the same time, during the continuous plugging of the socket end and the plug end, the clamping rod continuously engages with the ratchet groove on the inner side of the ratchet ring, thereby continuously locking the connector and ensuring stability during connection.

[0010] Further, the removal mechanism includes an upper cover plate, a moving plate, a lower bottom plate, a pushing block, a tension spring, a clamping rod, and a moving push block. The inner side of the mounting shaft is fixedly connected with the upper cover plate and the lower bottom plate. The upper cover plate is fixedly connected to the lower bottom plate. The inner side of the lower bottom plate is slidably connected with the moving plate. One side of the moving plate away from the plug end is fixedly connected with the pushing block. Circular columns are fixedly connected to both the lower bottom plate and the moving plate. A tension spring is connected between the two circular columns. A clamping groove is formed on the moving plate. The inner side of the lower bottom plate is rotatably connected with the clamping rod. The other end of the clamping rod slides in the clamping groove. One side of the moving plate away from the upper cover plate is fixedly connected with the moving push block. A sliding groove corresponding to the pushing block is formed on the upper cover plate. A sliding groove corresponding to the moving push block is formed on the lower bottom plate. The moving push block corresponds to the convex block.

[0011] When it is necessary to remove the lock, the user pushes the pushing block. The pushing block drives the moving plate fixedly connected thereto to move synchronously. Since the moving push block is fixedly connected to the moving plate, the moving push block then pushes the convex block. The convex block drives the clamping rod to compress the first spring under the guiding action of the guiding column, so that the clamping rod is separated from the ratchet groove inside the ratchet ring. At the same time, during the movement of the moving plate, the clamping rod slides in the clamping groove on the moving plate. After the clamping rod moves to the distal end of the clamping groove, the movement of the plate is fixed, thereby maintaining the state where the clamping rod is separated from the ratchet groove inside the ratchet ring, thus achieving the unlocking. When it is necessary to restore the lock, push the pushing block again, so that the clamping rod slides in the clamping groove again, and then resets under the action of the spring force of the tension spring, so that the clamping rod meshes with the ratchet groove inside the ratchet ring again. Further, the reset mechanism includes a guiding rod, a second spring, a pushing block, and a connecting block. One side of the upper cover plate is fixedly connected with a rectangular block. The inner side of the rectangular block is slidably connected with the guiding rod. The outer side of the guiding rod is sleeved with the second spring. The other end of the guiding rod away from the rectangular block is fixedly connected with the connecting block through a long strip block. One end of the connecting block away from the long strip block is fixedly connected with the pushing block. The pushing block corresponds to the pushing rod.

[0012] Further, a groove corresponding to the pushing block is formed on the pushing rod. A circular groove is formed on the circular outer shell.

[0013] Further, evenly distributed ratchet grooves are formed on the ratchet ring. An inclined surface corresponding to the ratchet groove is provided on the clamping rod. A cylindrical block is provided on the socket end. An arc groove corresponding to the cylindrical block is formed on the auxiliary mating rod.

[0014] Further, the control mechanism includes a first regulation mechanism. The first regulation mechanism includes a moving block, a regulation rod, and a guiding cylinder. A moving block is fixedly connected to the side of the connecting block away from the pushing block. A regulation rod is slidably connected to the side of the moving block away from the connecting block. Corresponding inclined surfaces are provided on the moving block and the regulation rod, and a guiding protrusion is provided on the inclined surface of the regulation rod. A groove corresponding to the guiding protrusion is provided on the inclined surface of the moving block. A guiding cylinder is fixedly installed on the auxiliary mating rod. The end of the regulation rod away from the moving block slides inside the guiding cylinder.

[0015] When the first regulation mechanism is used for convenient unlocking, the user presses the regulation rod, and the regulation rod moves inside the guiding cylinder. Since inclined surfaces are provided on both the regulation rod and the moving block, and a long protrusion is provided on the regulation rod, and a groove corresponding to the long protrusion is formed on the moving block, during the movement of the regulation rod, the moving block is pushed, causing the moving block to push the connecting block to drive the guiding rod to compress the second spring. The connecting block simultaneously drives the pushing block fixedly connected thereto to move synchronously. The pushing block pushes the pushing rod, and the pushing rod drives the clamping rod to separate from the ratchet groove inside the ratchet ring, thereby unlocking. When it is necessary to restore the locking, release the regulation rod, and it will reset under the action of the spring force of the second spring. Further, the control mechanism includes a second regulation mechanism. The second regulation mechanism includes a moving rod, a connecting rod, a rotating disk, a rotating rod, a fixed block, and a pulling rod. A moving rod is fixedly connected to the side of the connecting block away from the pushing block. A connecting rod is rotatably connected to the side of the moving rod away from the connecting block. A rotating disk is rotatably connected to the side of the connecting rod away from the moving rod. A rotating rod is fixedly connected to the inner side of the rotating disk near the plug end. A fixed block is fixedly connected to the plug end. The rotating rod rotates inside the fixed block. A pulling rod is fixedly connected to the outer side of the rotating rod.

[0016] When the second regulation mechanism is used for convenient unlocking, the staff rotates the pulling rod, and the pulling rod drives the rotating rod fixedly connected thereto to rotate synchronously. The rotating rod drives the rotating disk fixedly connected thereto to rotate, causing the rotating disk to drive the connecting rod to rotate. The connecting rod pushes the moving rod, causing the moving rod to drive the connecting block to move. The connecting block simultaneously drives the pushing block fixedly connected thereto to move synchronously. The pushing block pushes the pushing rod, and the pushing rod drives the clamping rod to separate from the ratchet groove inside the ratchet ring, thereby unlocking. When it is necessary to restore the locking, release the pulling rod, and it will reset under the action of the spring force of the second spring.

[0017] Compared with the prior art, the present invention provides a self-locking U-shaped connector for new energy vehicles, having the following beneficial effects: 1. The self-locking U-shaped connector for new energy vehicles, through the setting of the self-locking mechanism, enables the rotation of the auxiliary mating rod to drive the synchronous rotation of the self-locking component during the continuous docking process of the socket end and the plug end. Then, through the continuous meshing of the clamping rod 349 with the ratchet slots inside the ratchet ring 36, the reverse rotation of the auxiliary mating rod can be achieved to realize continuous locking, changing the existing single-point locking method, making the locking firm, and solving the problems of wear of the locking hook and deformation of the boss in the existing single-point locking, which are likely to cause poor contact or even loosening, with a relatively high probability of falling off and loosening, and the self-locking effect is not ideal.

[0018] 2. The self-locking U-shaped connector for new energy vehicles, through the setting of the removal mechanism, enables the staff to conveniently release the locking for a long time by pressing when the need to release the locking of the connector for a long time arises, ensuring the convenience of use.

[0019] 3. The self-locking U-shaped connector for new energy vehicles, through the regulating mechanism 1 and the regulating mechanism 2, designs two ways to release the locking at any time and to be in the locked state at any time. One is by pressing, and the other is by toggling, which can be selectively used under different usage requirements, meeting the diverse practical needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structure diagram of Embodiment 1 of the present invention; Figure 2 It is a three-dimensional structure diagram of another angle of Embodiment 1 of the present invention; Figure 3 It is a three-dimensional structure diagram of the plug end of the present invention; Figure 4 It is a three-dimensional structure diagram of the socket end of the present invention; Figure 5 It is a combined three-dimensional structure diagram of the self-locking mechanism and the regulating mechanism 1 of the present invention; Figure 6 It is a three-dimensional structure diagram of the self-locking mechanism of the present invention; Figure 7 It is an exploded three-dimensional structure diagram of the self-locking mechanism of the present invention; Figure 8 It is a three-dimensional structure diagram of the ratchet ring of the present invention; Figure 9 It is an exploded three-dimensional structure diagram of the self-locking component of the present invention; Figure 10 It is an exploded three-dimensional structure diagram of another angle of the self-locking component of the present invention; Figure 11 It is an exploded three-dimensional structure diagram of the removal mechanism of the present invention; Figure 12Schematic three-dimensional structure diagram of the first regulation mechanism of the present invention; Figure 13 Schematic three-dimensional structure diagram of the second embodiment of the present invention; Figure 14 Schematic three-dimensional structure diagram of the second regulation mechanism of the present invention.

[0021] In the figure: 1, socket end; 11, socket body; 12, socket high-voltage terminal; 2, plug end; 21, plug body; 22, plug high-voltage terminal; 3, self-locking mechanism; 31, circular housing; 32, mounting shaft; 33, removal mechanism; 331, upper cover plate; 332, moving plate; 333, lower bottom plate; 334, pushing block; 335, tension spring; 336, clamping rod; 337, moving push block; 34, self-locking assembly; 341, first fixing ring; 342, second fixing ring; 343, guiding housing; 344, bottom cover; 345, clamping block; 346, first spring; 347, circular block; 348, pushing rod; 349, clamping rod; 3410, convex block; 3411, guiding column; 35, bottom plate; 36, ratchet ring; 4, first regulation mechanism; 41, moving block; 42, regulation rod; 43, guiding cylinder; 5, second regulation mechanism; 51, moving rod; 52, connecting rod; 53, rotating disk; 54, rotating rod; 55, fixing block; 56, pulling rod; 6, reset mechanism; 61, guiding rod; 62, second spring; 63, pushing block; 64, connecting block; 7, auxiliary mating rod. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1

[0024] Please refer to Figures 1 - 12 , a self-locking U-shaped connector for new energy vehicles, including a socket end 1 and a plug end 2. The plug end 2 is inserted into the socket end 1. A self-locking mechanism 3 is fixedly installed on the outer side of the plug end 2. An auxiliary mating rod 7 is fixedly connected to the side of the self-locking mechanism 3 away from the plug end 2. A reset mechanism 6 is arranged on the self-locking mechanism 3. A control mechanism is connected between the auxiliary mating rod 7 and the reset mechanism 6; The self-locking mechanism 3 includes a circular housing 31, a mounting shaft 32, a removal mechanism 33, a self-locking component 34, a bottom plate 35, and a ratchet ring 36. The outer side of the plug end 2 is fixedly connected to the bottom plate 35. On the side of the bottom plate 35 away from the plug end 2, a ratchet ring 36 is fixedly connected. On the side of the bottom plate 35 away from the plug end 2 and outside the ratchet ring 36, a circular housing 31 is fixedly connected. Inside the bottom plate 35, the self-locking component 34 is rotatably connected. On the side of the self-locking component 34 away from the bottom plate 35, a mounting shaft 32 is fixedly connected. Inside the mounting shaft 32, a removal mechanism 33 is fixedly connected; Through the cooperation between the self-locking mechanism 3 and the control mechanism, continuous self-locking of the connector is achieved.

[0025] Furthermore, the socket end 1 includes a socket body 11 and a socket high-voltage terminal 12. Inside the socket body 11, a socket high-voltage terminal 12 is fixedly installed; The plug end 2 includes a plug body 21 and a plug high-voltage terminal 22. Inside the plug body 21, a plug high-voltage terminal 22 is fixedly installed. The plug high-voltage terminal 22 corresponds to the socket high-voltage terminal 12, and the plug body 21 corresponds to the socket body 11. A protrusion is provided on the socket body 11, and a groove corresponding to the protrusion is provided on the plug body 21.

[0026] The groove on the plug high-voltage terminal 22 is aligned with the protrusion on the socket body 11, and then the plug high-voltage terminal 22 is snap-connected to the socket high-voltage terminal 12. During the continuous insertion of the plug end 2 into the socket end 1, since a circular block is provided on the socket body 11 and an arc-shaped groove corresponding to the cylindrical block is provided on the auxiliary mating rod 7, the cylindrical block slides in the arc-shaped groove, pushing the auxiliary mating rod 7 to rotate; making the distal end of the auxiliary mating rod 7 gradually approach the plug body 21; Furthermore, the self-locking component 34 includes a first fixed ring 341, a second fixed ring 342, a guiding housing 343, a bottom cover 344, a clamping block 345, a first spring 346, a circular block 347, a pushing rod 348, a clamping rod 349, a convex block 3410, and a guiding column 3411. Inside the bottom plate 35, the second fixed ring 342 is rotatably connected. On the side of the second fixed ring 342 close to the plug end 2, a circular block 347 is fixedly connected. On the side of the second fixed ring 342 away from the plug end 2, a first fixed ring 341 is fixedly connected. Inside the second fixed ring 342 and the first fixed ring 341, a guiding housing 343 is installed. On one side of the guiding housing 343, a bottom cover 344 is fixedly installed. Inside the guiding housing 343, a clamping rod 349 is slidably connected.

[0027] Furthermore, a clamping block 345 is fixedly installed on the clamping rod 349 and the bottom cover 344, a spring 346 is provided between the bottom cover 344 and the clamping rod 349 and on the outside of the clamping block 345, a push rod 348 is fixedly connected to the outside of the clamping rod 349, a protrusion 3410 and a guide column 3411 are fixedly connected to the side of the clamping rod 349 away from the plug end 2, and sliding grooves corresponding to the push rod 348 and the guide column 3411 are respectively provided on the guide shell 343, and a fixing ring 341 is fixedly connected to the mounting shaft 32.

[0028] When the auxiliary matching rod 7 gradually rotates, the auxiliary matching rod 7 drives the installation shaft 32 fixedly connected thereto to rotate synchronously, and the installation shaft 32 drives the self-locking component 34 to rotate synchronously while rotating. When the self-locking component 34 rotates, since the clamping rod 349 is provided with an inclined surface corresponding to the ratchet groove of the ratchet ring 36, the clamping rod 349 slides back and forth on the inner side of the guide housing 343 under the action of the ratchet groove, the spring force of the spring 1 346 and the guiding action of the guide column 3411. At the same time, when the clamping rod 349 is engaged with the ratchet groove, the self-locking component 34 can be locked in the opposite direction. When the plug end 2 and the socket end 1 are plugged into place, the distal end of the auxiliary matching rod 7 rotates to a position parallel to the plug body 21. At this time, the clamping rod 349 engages with the ratchet groove on the inner side of the ratchet ring 36 to lock the connector. At the same time, during the continuous plugging of the socket end 1 and the plug end 2, the clamping rod 349 continuously engages with the ratchet groove on the inner side of the ratchet ring 36 to continuously lock the connector and ensure stability during connection.

[0029] Furthermore, the removal mechanism 33 includes an upper cover plate 331, a moving plate 332, a lower base plate 333, a push block 334, a tension spring 335, a clamping rod 336, and a moving push block 337. The inner side of the mounting shaft 32 is fixedly connected to the upper cover plate 331 and the lower base plate 333. The upper cover plate 331 is fixedly connected to the lower base plate 333. The inner side of the lower base plate 333 is slidably connected to the moving plate 332. The side of the moving plate 332 away from the plug end 2 is fixedly connected to the push block 334. The lower base plate 333 and the moving plate 332 are both A circular column is fixedly connected, a tension spring 335 is connected between the two groups of circular columns, a slot is provided on the moving plate 332, a locking rod 336 is rotatably connected to the inner side of the lower base plate 333, the other end of the locking rod 336 slides in the slot, a moving push block 337 is fixedly connected to the side of the moving plate 332 away from the upper cover plate 331, a sliding groove corresponding to the push block 334 is provided on the upper cover plate 331, a sliding groove corresponding to the moving push block 337 is provided on the lower base plate 333, and the moving push block 337 corresponds to the protrusion 3410.

[0030] When lock removal is required, the user pushes the push block 334. The push block 334 drives the moving plate 332 fixedly connected thereto to move synchronously. Since the moving push block 337 is fixedly connected to the moving plate 332, the moving push block 337 further pushes the convex block 3410. The convex block 3410 drives the clamping rod 349 to compress the first spring 346 under the guiding action of the guiding column 3411, so that the clamping rod 349 is separated from the ratchet groove inside the ratchet ring 36. At the same time, during the movement of the moving plate 332, the clamping rod 336 slides in the card slot on the moving plate 332. After the clamping rod 336 moves to the card slot at the distal end of the movement, the fixing of the moving plate 332 is realized, thereby maintaining the state where the clamping rod 349 is separated from the ratchet groove inside the ratchet ring 36, so as to achieve unlocking. When locking needs to be restored, the push block 334 is pushed again, so that the clamping rod 336 slides in the card slot again, and then resets under the spring force of the tension spring 335, so that the clamping rod 349 meshes with the ratchet groove inside the ratchet ring 36 again; Further, the reset mechanism 6 includes a guiding rod 61, a second spring 62, a pushing block 63, and a connecting block 64. One side of the upper cover plate 331 is fixedly connected with a rectangular block. The guiding rod 61 is slidably connected inside the rectangular block. The second spring 62 is sleeved on the outer side of the guiding rod 61. The other end of the guiding rod 61 away from the rectangular block is fixedly connected with the connecting block 64 through a long strip block. One end of the connecting block 64 away from the long strip block is fixedly connected with the pushing block 63. The pushing block 63 corresponds to the pushing rod 348.

[0031] Further, the pushing rod 348 is provided with a groove corresponding to the pushing block 63, and the circular shell 31 is provided with a circular groove.

[0032] Further, the ratchet ring 36 is provided with evenly distributed ratchet grooves. The clamping rod 349 is provided with an inclined surface corresponding to the ratchet groove. The socket end 1 is provided with a cylindrical block. The auxiliary mating rod 7 is provided with an arc groove corresponding to the cylindrical block.

[0033] Further, the control mechanism includes a first regulating mechanism 4. The first regulating mechanism 4 includes a moving block 41, a regulating rod 42, and a guiding cylinder 43. One side of the connecting block 64 away from the pushing block 63 is fixedly connected with the moving block 41. The regulating rod 42 is slidably connected to one side of the moving block 41 away from the connecting block 64. The moving block 41 and the regulating rod 42 are provided with corresponding inclined surfaces, and the inclined surface of the regulating rod 42 is provided with a guiding protrusion. The inclined surface of the moving block 41 is provided with a groove corresponding to the guiding protrusion. The guiding cylinder 43 is fixedly installed on the auxiliary mating rod 7. The end of the regulating rod 42 away from the moving block 41 slides inside the guiding cylinder 43.

[0034] When it is necessary to perform portable unlocking using the first control mechanism 4, the user presses the control lever 42, and the control lever 42 moves within the guide cylinder 43. Since inclined surfaces are provided on both the control lever 42 and the moving block 41, and a long protrusion is provided on the control lever 42, and a groove corresponding to the long protrusion is opened on the moving block 41. Therefore, during the movement of the control lever 42, the moving block 41 is pushed, so that the moving block 41 pushes the connecting block 64 to drive the guide rod 61 to compress the second spring 62. The connecting block 64 simultaneously drives the pushing block 63 fixedly connected thereto to perform synchronous movement. The pushing block 63 pushes the push rod 348, and the push rod 348 drives the clamping rod 349 to separate from the ratchet groove inside the ratchet ring 36, thereby unlocking. When it is necessary to restore the lock, release the control lever 42, and it will be reset under the spring force of the second spring 62; Embodiment 2

[0035] Please refer to Figures 13 - 14 , the difference between Embodiment 2 and Embodiment 1 is that: the control mechanism includes a second control mechanism 5, and the second control mechanism 5 includes a moving rod 51, a connecting rod 52, a rotating disk 53, a rotating rod 54, a fixed block 55, and a pull rod 56. A moving rod 51 is fixedly connected to the side of the connecting block 64 away from the pushing block 63. A connecting rod 52 is rotatably connected to the side of the moving rod 51 away from the connecting block 64. A rotating disk 53 is rotatably connected to the side of the connecting rod 52 away from the moving rod 51. A rotating rod 54 is fixedly connected to the inner side of the rotating disk 53 close to the plug end 2. A fixed block 55 is fixedly connected to the plug end 2. The rotating rod 54 rotates inside the fixed block 55, and a pull rod 56 is fixedly connected to the outer side of the rotating rod 54.

[0036] When it is necessary to perform portable unlocking using the second control mechanism 5, the staff rotates the pull rod 56, and the pull rod 56 drives the rotating rod 54 fixedly connected thereto to perform synchronous rotation. The rotating rod 54 drives the rotating disk 53 fixedly connected thereto to rotate, so that the rotating disk 53 drives the connecting rod 52 to rotate. The connecting rod 52 pushes the moving rod 51, so that the moving rod 51 drives the connecting block 64 to move. The connecting block 64 simultaneously drives the pushing block 63 fixedly connected thereto to perform synchronous movement. The pushing block 63 pushes the push rod 348, and the push rod 348 drives the clamping rod 349 to separate from the ratchet groove inside the ratchet ring 36, thereby unlocking. When it is necessary to restore the lock, release the pull rod 56, and it will be reset under the spring force of the second spring 62.

[0037] The specific usage method and function of this embodiment: When in use, first align the groove on the plug high-voltage terminal 22 with the protrusion on the socket body 11, and then snap-fit ​​the plug high-voltage terminal 22 with the socket high-voltage terminal 12. During the process of the plug end 2 being continuously inserted into the socket end 1, since the socket body 11 is provided with a circular block, and the auxiliary matching rod 7 is provided with an arc groove corresponding to the cylindrical block, the cylindrical block slides in the arc groove, pushing the auxiliary matching rod 7 to rotate, so that the distal end of the auxiliary matching rod 7 gradually approaches the plug body 21. When the auxiliary matching rod 7 gradually rotates, the auxiliary matching rod 7 drives the installation shaft 32 fixedly connected thereto to rotate synchronously, and the installation shaft 32 drives the self-locking component 34 to rotate synchronously while rotating. When the self-locking component 34 rotates, since the clamping rod 349 is provided with an inclined surface corresponding to the ratchet groove of the ratchet ring 36, the clamping rod 349 slides back and forth on the inner side of the guide housing 343 under the action of the ratchet groove, the spring force of the spring 1 346 and the guiding action of the guide column 3411. At the same time, when the clamping rod 349 is engaged with the ratchet groove, the self-locking component 34 can be locked in the opposite direction. When the plug end 2 and the socket end 1 are plugged into place, the distal end of the auxiliary matching rod 7 rotates to a position parallel to the plug body 21. At this time, the clamping rod 349 engages with the ratchet groove on the inner side of the ratchet ring 36 to lock the connector. At the same time, during the continuous plugging of the socket end 1 and the plug end 2, the clamping rod 349 continuously engages with the ratchet groove on the inner side of the ratchet ring 36 to continuously lock the connector and ensure stability during connection.

[0038] When the lock needs to be removed, the user pushes the push block 334, which drives the moving plate 332 fixedly connected thereto to move synchronously. Since the moving plate 332 is fixedly connected with a moving push block 337, the moving push block 337 pushes the protrusion 3410, and the protrusion 3410 drives the clamping rod 349 to compress the spring 1 346 under the guidance of the guide column 3411, so that the clamping rod 349 is separated from the ratchet groove on the inner side of the ratchet ring 36, and the moving plate 332 is moving. During the process, the latch rod 336 slides in the latch groove on the moving plate 332. After the latch rod 336 moves into the latch groove at the far end, the moving plate 332 is fixed, thereby maintaining the state in which the latch rod 349 is separated from the ratchet groove inside the ratchet ring 36, thereby releasing the lock. When the lock needs to be restored, the push block 334 is pushed again, so that the latch rod 336 slides in the latch groove again, and then resets under the action of the spring force of the tension spring 335, so that the latch rod 349 is meshed with the ratchet groove inside the ratchet ring 36 again. When the portable unlocking is required and the control mechanism 4 is used, the user presses the control rod 42, and the control rod 42 moves within the guide cylinder 43. Since inclined surfaces are provided on both the control rod 42 and the moving block 41, and a long protrusion is provided on the control rod 42, and a groove corresponding to the long protrusion is opened on the moving block 41. Therefore, during the movement of the control rod 42, the moving block 41 is pushed, so that the moving block 41 pushes the connecting block 64 to drive the guide rod 61 to compress the second spring 62. The connecting block 64 simultaneously drives the pushing block 63 fixedly connected thereto to move synchronously. The pushing block 63 pushes the push rod 348, and the push rod 348 drives the clamping rod 349 to separate from the ratchet groove inside the ratchet ring 36, thereby unlocking. When it is necessary to restore the locking, the control rod 42 is released, and it is reset under the action of the spring force of the second spring 62; When the portable unlocking is required and the control mechanism 5 is used, the staff rotates the pull rod 56, and the pull rod 56 drives the rotating rod 54 fixedly connected thereto to rotate synchronously. The rotating rod 54 drives the rotating disk 53 fixedly connected thereto to rotate, so that the rotating disk 53 drives the connecting rod 52 to rotate. The connecting rod 52 pushes the moving rod 51, so that the moving rod 51 drives the connecting block 64 to move. The connecting block 64 simultaneously drives the pushing block 63 fixedly connected thereto to move synchronously. The pushing block 63 pushes the push rod 348, and the push rod 348 drives the clamping rod 349 to separate from the ratchet groove inside the ratchet ring 36, thereby unlocking. When it is necessary to restore the locking, the pull rod 56 is released, and it is reset under the action of the spring force of the second spring 62.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-locking U-shaped connector for new energy vehicles, comprising a socket end (1) and a plug end (2), wherein the plug end (2) is inserted into the socket end (1), and is characterized in that: A self-locking mechanism (3) is fixedly installed on the outer side of the plug end (2). One side of the self-locking mechanism (3) far from the plug end (2) is fixedly connected with an auxiliary mating rod (7). A reset mechanism (6) is arranged on the self-locking mechanism (3). A control mechanism is connected between the auxiliary mating rod (7) and the reset mechanism (6). The self-locking mechanism (3) includes a circular shell (31), a mounting shaft (32), a removal mechanism (33), a self-locking component (34), a bottom plate (35), and a ratchet ring (36). The bottom plate (35) is fixedly connected to the outer side of the plug end (2). One side of the bottom plate (35) far from the plug end (2) is fixedly connected with a ratchet ring (36). One side of the bottom plate (35) far from the plug end (2) and on the outer side of the ratchet ring (36) is fixedly connected with a circular shell (31). The inner side of the bottom plate (35) is rotatably connected with a self-locking component (34). One side of the self-locking component (34) far from the bottom plate (35) is fixedly connected with a mounting shaft (32). The inner side of the mounting shaft (32) is fixedly connected with a removal mechanism (33). Through the cooperation between the self-locking mechanism (3) and the control mechanism, continuous self-locking of the connector is achieved.

2. The self-locking U-shaped connector for a new energy vehicle according to claim 1, wherein: The socket end (1) includes a socket body (11) and a socket high-voltage terminal (12). The socket high-voltage terminal (12) is fixedly installed inside the socket body (11). The plug end (2) includes a plug body (21) and a plug high-voltage terminal (22). The plug high-voltage terminal (22) is fixedly installed inside the plug body (21). The plug high-voltage terminal (22) corresponds to the socket high-voltage terminal (12). The plug body (21) corresponds to the socket body (11). A protrusion is provided on the socket body (11). A groove corresponding to the protrusion is provided on the plug body (21).

3. The self-locking U-shaped connector for new energy vehicles according to claim 2, wherein: The self-locking component (34) includes a first fixing ring (341), a second fixing ring (342), a guiding housing (343), a bottom cover (344), a clamping block (345), a first spring (346), a circular block (347), a push rod (348), a clamping rod (349), a convex block (3410), and a guiding column (3411). The second fixing ring (342) is rotatably connected to the inner side of the bottom plate (35). One side of the second fixing ring (342) close to the plug end (2) is fixedly connected with a circular block (347). One side of the second fixing ring (342) far from the plug end (2) is fixedly connected with a first fixing ring (341). A guiding housing (343) is installed inside the second fixing ring (342) and the first fixing ring (341). A bottom cover (344) is fixedly installed on one side of the guiding housing (343). A clamping rod (349) is slidably connected to the inner side of the guiding housing (343).

4. A self-locking U-shaped connector for a new energy vehicle according to claim 3, characterized in that: The clamping rod (349) and the bottom cover (344) are both fixedly installed with clamping blocks (345). A first spring (346) is arranged between the bottom cover (344) and the clamping rod (349) and outside the clamping block (345). A push rod (348) is fixedly connected to the outside of the clamping rod (349). A convex block (3410) and a guide post (3411) are fixedly connected to the side of the clamping rod (349) away from the plug end (2). The guide housing (343) is respectively provided with sliding grooves corresponding to the push rod (348) and the guide post (3411). The first fixing ring (341) is fixedly connected to the mounting shaft (32).

5. The self-locking U-shaped connector for a new energy vehicle according to claim 4, characterized in that: The removal mechanism (33) includes an upper cover plate (331), a moving plate (332), a lower bottom plate (333), a push block (334), a tension spring (335), a clamping rod (336), and a moving push block (337). The upper cover plate (331) and the lower bottom plate (333) are fixedly connected to the inner side of the mounting shaft (32). The upper cover plate (331) is fixedly connected to the lower bottom plate (333). The moving plate (332) is slidably connected to the inner side of the lower bottom plate (333). A push block (334) is fixedly connected to the side of the moving plate (332) away from the plug end (2). Circular columns are fixedly connected to both the lower bottom plate (333) and the moving plate (332). A tension spring (335) is connected between the two groups of circular columns. A card slot is provided on the moving plate (332). The clamping rod (336) is rotatably connected to the inner side of the lower bottom plate (333). The other end of the clamping rod (336) slides in the card slot. A moving push block (337) is fixedly connected to the side of the moving plate (332) away from the upper cover plate (331). A sliding groove corresponding to the push block (334) is provided on the upper cover plate (331). A sliding groove corresponding to the moving push block (337) is provided on the lower bottom plate (333). The moving push block (337) corresponds to the convex block (3410).

6. The self-locking U-shaped connector for a new energy vehicle according to claim 5, wherein: The reset mechanism (6) includes a guide rod (61), a second spring (62), a push block (63), and a connecting block (64). A rectangular block is fixedly connected to one side of the upper cover plate (331). The guide rod (61) is slidably connected to the inner side of the rectangular block. The second spring (62) is sleeved on the outside of the guide rod (61). The other end of the guide rod (61) away from the rectangular block is fixedly connected to the connecting block (64) through a long strip block. The push block (63) is fixedly connected to the end of the connecting block (64) away from the long strip block. The push block (63) corresponds to the push rod (348).

7. The self-locking U-shaped connector for new energy vehicles according to claim 6, characterized in that: A groove corresponding to the push block (63) is provided on the push rod (348). A circular groove is provided on the circular outer shell (31).

8. The self-locking U-shaped connector for new energy vehicles according to claim 7, characterized in that: The ratchet ring (36) is provided with uniformly distributed ratchet grooves. The clamping rod (349) is provided with an inclined surface corresponding to the ratchet grooves. A cylindrical block is provided on the socket end (1). The auxiliary mating rod (7) is provided with an arc groove corresponding to the cylindrical block.

9. The self-locking U-shaped connector for a new energy vehicle according to claim 8, wherein: The control mechanism includes a first regulation mechanism (4). The first regulation mechanism (4) includes a moving block (41), a regulation rod (42), and a guiding cylinder (43). A moving block (41) is fixedly connected to the side of the connecting block (64) away from the pushing block (63). A regulation rod (42) is slidably connected to the side of the moving block (41) away from the connecting block (64). Corresponding inclined surfaces are provided on the moving block (41) and the regulation rod (42), and a guiding protrusion is provided on the inclined surface of the regulation rod (42). A groove corresponding to the guiding protrusion is provided on the inclined surface of the moving block (41). A guiding cylinder (43) is fixedly installed on the auxiliary mating rod (7). The end of the regulation rod (42) away from the moving block (41) slides inside the guiding cylinder (43).

10. A self-locking U-shaped connector for a new energy vehicle according to claim 8, characterized in that: The control mechanism includes a second regulation mechanism (5). The second regulation mechanism (5) includes a moving rod (51), a connecting rod (52), a rotating disk (53), a rotating rod (54), a fixed block (55), and a pull rod (56). A moving rod (51) is fixedly connected to the side of the connecting block (64) away from the pushing block (63). A connecting rod (52) is rotatably connected to the side of the moving rod (51) away from the connecting block (64). A rotating disk (53) is rotatably connected to the side of the connecting rod (52) away from the moving rod (51). A rotating rod (54) is fixedly connected to the inner side of the rotating disk (53) close to the plug end (2). A fixed block (55) is fixedly connected to the plug end (2). The rotating rod (54) rotates inside the fixed block (55). A pull rod (56) is fixedly connected to the outer side of the rotating rod (54).

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