A self-locking U-shaped connector for new energy vehicles

Abstract

The present invention relates to the technical field of new energy vehicle connectors, and discloses a self-locking U-shaped connector for new energy vehicles, which includes 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 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. Through the setting of the self-locking mechanism in the present invention, during the continuous docking process of the socket end and the plug end, the rotation of the auxiliary mating rod can drive the self-locking assembly to rotate synchronously. Then, through the continuous engagement of the clamping rod and the ratchet groove inside the ratchet ring, the auxiliary mating rod can be rotated in the opposite direction to achieve continuous locking, changing the existing single-point locking method, making the locking firm, and solving the problems of wear of the single-point locking hook and deformation of the convex platform in the prior art, which are likely to cause poor contact or even loosening.

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 limit groove through a cable hook and a boss for stable locking. However, relying on the design of single-point mechanical engagement, during the plugging and unplugging 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, which in turn is prone to 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;

[0006] The self-locking mechanism includes a circular housing, 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 housing. 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;

[0007] Through the cooperation between the self-locking mechanism and the control mechanism, continuous self-locking of the connector is achieved.

[0008] 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;

[0009] 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.

[0010] 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 continuous insertion of the plug end 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;

[0011] 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.

[0012] 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.

[0013] When the auxiliary matching rod gradually rotates, the auxiliary matching rod drives the installation shaft fixedly connected to it 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 toggling 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;

[0014] 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, thereby locking 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.

[0015] 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 and the lower bottom plate are fixedly connected to each other. 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 groups of circular columns. A clamping groove is formed in 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 in the upper cover plate. A sliding groove corresponding to the moving push block is formed in the lower bottom plate. The moving push block corresponds to the convex block.

[0016] 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 clamping groove at the far end of the movement, the fixing of the moving plate is realized, and thus the state of separation between the clamping rod and the ratchet groove inside the ratchet ring is maintained, thereby realizing the unlocking. When it is necessary to restore the lock, the pushing block is pushed 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;

[0017] 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.

[0018] Further, a groove corresponding to the pushing block is formed in the pushing rod. A circular groove is formed in the circular outer shell.

[0019] Further, uniformly distributed ratchet grooves are formed in 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 in the auxiliary mating rod.

[0020] Further, the control mechanism includes a first regulating mechanism, and the first regulating mechanism includes a moving block, a regulating rod, and a guiding cylinder. A moving block is fixedly connected to the side of the connecting block away from the pushing block. A regulating 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 regulating rod, and a guiding protrusion is provided on the inclined surface of the regulating 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, and the end of the regulating rod away from the moving block slides inside the guiding cylinder.

[0021] When the first regulating mechanism is used for convenient unlocking, the user presses the regulating rod, and the regulating rod moves inside the guiding cylinder. Since inclined surfaces are provided on both the regulating rod and the moving block, and a long protrusion is provided on the regulating rod, and a groove corresponding to the long protrusion is opened on the moving block, during the movement of the regulating rod, the moving block is pushed, so that the moving block pushes 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 regulating rod, and it will reset under the spring force of the second spring.

[0022] Further, the control mechanism includes a second regulating mechanism, and the second regulating 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, and the rotating rod rotates inside the fixed block. A pulling rod is fixedly connected to the outer side of the rotating rod.

[0023] When the second regulating 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, so that the rotating disk drives the connecting rod to rotate. The connecting rod pushes the moving rod, so that the moving rod drives 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 spring force of the second spring.

[0024] Compared with the prior art, the present invention provides a self-locking U-shaped connector for new energy vehicles, having the following beneficial effects:

[0025] 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 engagement of the clamping rod 349 with the ratchet groove inside the ratchet ring 36, the reverse rotation of the auxiliary mating rod can be achieved, realizing continuous locking. This changes the existing single-point locking method, making the locking firm, and solving the problems of wear of the single-point locking hook and deformation of the boss in the existing technology, 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.

[0026] 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.

[0027] 3. The self-locking U-shaped connector for new energy vehicles, through the regulation mechanism 1 and the regulation mechanism 2, designs two ways to release the locking at any time and lock at any time. One is by pressing, and the other is by toggling, which can be selectively used according to different usage requirements, meeting diverse practical needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structure diagram of Embodiment 1 of the present invention;

[0029] Figure 2 It is a three-dimensional structure diagram of another angle of Embodiment 1 of the present invention;

[0030] Figure 3 It is a three-dimensional structure diagram of the plug end of the present invention;

[0031] Figure 4 It is a three-dimensional structure diagram of the socket end of the present invention;

[0032] Figure 5 It is a combined three-dimensional structure diagram of the self-locking mechanism and the regulation mechanism 1 of the present invention;

[0033] Figure 6 It is a three-dimensional structure diagram of the self-locking mechanism of the present invention;

[0034] Figure 7 It is an exploded three-dimensional structure diagram of the self-locking mechanism of the present invention;

[0035] Figure 8 It is a three-dimensional structure diagram of the ratchet ring of the present invention;

[0036] Figure 9 It is an exploded three-dimensional structure diagram of the self-locking component of the present invention;

[0037] Figure 10 Another perspective exploded three-dimensional structural schematic diagram of the self-locking component of the present invention;

[0038] Figure 11 Exploded three-dimensional structural schematic diagram of the removal mechanism of the present invention;

[0039] Figure 12 Three-dimensional structural schematic diagram of the first regulation mechanism of the present invention;

[0040] Figure 13 Three-dimensional structural schematic diagram of the second embodiment of the present invention;

[0041] Figure 14 Three-dimensional structural schematic diagram of the second regulation mechanism of the present invention.

[0042] 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 shell; 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 component; 341. First fixing ring; 342. Second fixing ring; 343. Guide housing; 344. Bottom cover; 345. Block; 346. First spring; 347. Circular block; 348. Pushing rod; 349. Clamping rod; 3410. Convex block; 3411. Guide post; 35. Bottom plate; 36. Ratchet ring; 4. First regulation mechanism; 41. Moving block; 42. Regulation rod; 43. Guide cylinder; 5. Second regulation mechanism; 51. Moving rod; 52. Link rod; 53. Rotating disc; 54. Rotating rod; 55. Fixed block; 56. Pull rod; 6. Reset mechanism; 61. Guide rod; 62. Second spring; 63. Pushing block; 64. Connecting block; 7. Auxiliary mating rod. Detailed implementation manners

[0043] 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.

[0044] Embodiment 1

[0045] Please refer to Figures 1-12, A self-locking U-shaped connector for new energy vehicles, comprising 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. One side of the self-locking mechanism 3 away 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;

[0046] The self-locking mechanism 3 includes a circular outer 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 away from the plug end 2 is fixedly connected with a ratchet ring 36. One side of the bottom plate 35 away from the plug end 2 and outside the ratchet ring 36 is fixedly connected with a circular outer 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 away 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;

[0047] Through the cooperation between the self-locking mechanism 3 and the control mechanism, continuous self-locking of the connector is achieved.

[0048] Furthermore, the socket end 1 includes a socket body 11 and socket high-voltage terminals 12. The socket high-voltage terminals 12 are fixedly installed inside the socket body 11;

[0049] The plug end 2 includes a plug body 21 and plug high-voltage terminals 22. The plug high-voltage terminals 22 are fixedly installed inside the plug body 21. The plug high-voltage terminals 22 correspond to the socket high-voltage terminals 12. 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.

[0050] The groove on the plug high-voltage terminal 22 is aligned with the protrusion on the socket body 11. Then, the plug high-voltage terminal 22 is clamped with 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;

[0051] Furthermore, the self-locking assembly 34 includes a fixing ring 1 341, a fixing ring 2 342, a guide shell 343, a bottom cover 344, a clamping block 345, a spring 1 346, a circular block 347, a push rod 348, a clamping rod 349, a protrusion 3410, and a guide column 3411. The inner side of the bottom plate 35 is rotatably connected to the fixing ring 2 342, the side of the fixing ring 2 342 close to the plug end 2 is fixedly connected to the circular block 347, the side of the fixing ring 2 342 away from the plug end 2 is fixedly connected to the fixing ring 1 341, the inner sides of the fixing ring 2 342 and the fixing ring 1 341 are installed with a guide shell 343, one side of the guide shell 343 is fixedly installed with the bottom cover 344, and the inner side of the guide shell 343 is slidably connected with the clamping rod 349.

[0052] 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.

[0053] When the auxiliary matching rod 7 gradually rotates, the auxiliary matching rod 7 drives the mounting shaft 32 fixed thereto to rotate synchronously, and the mounting shaft 32 drives the self-locking assembly 34 to rotate synchronously while rotating. When the self-locking assembly 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 assembly 34 can be locked in the opposite direction.

[0054] 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, thereby locking 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, thereby continuously locking the connector and ensuring stability during connection.

[0055] Further, the removal mechanism 33 includes an upper cover plate 331, a moving plate 332, a lower bottom plate 333, a pushing 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 bottom plate 333. The upper cover plate 331 is fixedly connected to the lower bottom plate 333. The inner side of the lower bottom plate 333 is slidably connected to the moving plate 332. One side of the moving plate 332 away from the plug end 2 is fixedly connected to the pushing block 334. 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 clamping groove is formed on the moving plate 332. The inner side of the lower bottom plate 333 is rotatably connected to the clamping rod 336. The other end of the clamping rod 336 slides in the clamping groove. One side of the moving plate 332 away from the upper cover plate 331 is fixedly connected to the moving push block 337. A sliding groove corresponding to the pushing block 334 is formed on the upper cover plate 331. A sliding groove corresponding to the moving push block 337 is formed on the lower bottom plate 333. The moving push block 337 corresponds to the convex block 3410.

[0056] When it is necessary to remove the lock, the user pushes the pushing block 334. The pushing 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 clamping groove on the moving plate 332. After the clamping rod 336 moves to the clamping groove at the far end of the movement, the fixing of the moving plate 332 is realized, and then the state in which the clamping rod 349 is separated from the ratchet groove inside the ratchet ring 36 is maintained, thereby realizing the unlocking. When it is necessary to restore the lock, the pushing block 334 is pushed again, so that the clamping rod 336 slides in the clamping groove again, and then resets under the action of 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;

[0057] 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 to a rectangular block. The inner side of the rectangular block is slidably connected to the guiding rod 61. The outer side of the guiding rod 61 is sleeved with the second spring 62. The other end of the guiding rod 61 away from the rectangular block is fixedly connected to 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 to the pushing block 63. The pushing block 63 corresponds to the pushing rod 348.

[0058] Further, a groove corresponding to the pushing block 63 is formed on the pushing rod 348. A circular groove is formed on the circular outer shell 31.

[0059] Further, evenly distributed ratchet grooves are formed in the ratchet ring 36, a bevel corresponding to the ratchet grooves is provided on the clamping rod 349, a cylindrical block is provided on the socket end 1, and an arc groove corresponding to the cylindrical block is formed in the auxiliary mating rod 7.

[0060] 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. A moving block 41 is fixedly connected to the side of the connecting block 64 away from the pushing block 63. A regulating rod 42 is slidably connected to the side of the moving block 41 away from the connecting block 64. Corresponding bevels are provided on the moving block 41 and the regulating rod 42. A guiding protrusion is provided on the bevel of the regulating rod 42, and a groove corresponding to the guiding protrusion is formed on the bevel of the moving block 41. A guiding cylinder 43 is fixedly installed on the auxiliary mating rod 7, and the end of the regulating rod 42 away from the moving block 41 slides inside the guiding cylinder 43.

[0061] When the first regulating mechanism 4 is used for convenient unlocking, the user presses the regulating rod 42. The regulating rod 42 moves inside the guiding cylinder 43. Since bevels are provided on both the regulating rod 42 and the moving block 41, and a long protrusion is provided on the regulating rod 42, and a groove corresponding to the long protrusion is formed on the moving block 41. Therefore, during the movement of the regulating rod 42, the moving block 41 is pushed, so that the moving block 41 pushes the connecting block 64 to drive the guiding 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 pushing rod 348, and the pushing 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 regulating rod 42 is released, and it is reset under the spring force of the second spring 62.

[0062] Embodiment 2

[0063] Please refer to Figures 13-14 , the difference between Embodiment 2 and Embodiment 1 is that the control mechanism includes a second regulating mechanism 5. The second regulating 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 pulling 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 pulling rod 56 is fixedly connected to the outer side of the rotating rod 54.

[0064] When it is necessary to conveniently unlock the control mechanism 2 5, the staff rotates the pull rod 56, and the pull rod 56 drives the rotating rod 54 fixedly connected to it to rotate synchronously, and the rotating rod 54 drives the rotating disk 53 fixedly connected to it to rotate, so that the rotating disk 53 drives the connecting rod 52 to rotate, and the connecting rod 52 pushes the moving rod 51, so that the moving rod 51 drives the connecting block 64 to move, and the connecting block 64 simultaneously drives the pushing block 63 fixedly connected to it to move synchronously, and the pushing block 63 pushes the pushing rod 348, and the pushing rod 348 drives the clamping rod 349 to separate from the ratchet groove on the inner side of the ratchet ring 36, thereby releasing the lock. When it is necessary to restore the lock, release the pull rod 56 and reset it under the action of the spring force of the spring 2 62.

[0065] The specific usage and function of this embodiment are as follows:

[0066] 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 the plug high-voltage terminal 22 into the socket high-voltage terminal 12. During the process of continuously inserting the plug end 2 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;

[0067] When the auxiliary matching rod 7 gradually rotates, the auxiliary matching rod 7 drives the mounting shaft 32 fixed thereto to rotate synchronously, and the mounting shaft 32 drives the self-locking assembly 34 to rotate synchronously while rotating. When the self-locking assembly 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 assembly 34 can be locked in the opposite direction.

[0068] 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, thereby locking 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, thereby continuously locking the connector and ensuring stability during connection.

[0069] 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 then 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 slot on the moving plate 332. After the clamping rod 336 moves to the slot at the distal end of the movement, the fixing of the moving plate 332 is realized, and then the state where the clamping rod 349 is separated from the ratchet groove inside the ratchet ring 36 is maintained, thus realizing unlocking. When lock restoration is required, the push block 334 is pushed again, so that the clamping rod 336 slides in the 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;

[0070] When the control mechanism 1 4 is used for portable unlocking, the user presses the control rod 42. The control rod 42 moves in the guiding 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, 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 guiding rod 61 to compress the second spring 62. The connecting block 64 also 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 be separated from the ratchet groove inside the ratchet ring 36, thus unlocking. When lock restoration is required, the control rod 42 is released and resets under the spring force of the second spring 62;

[0071] When the control mechanism 2 5 is used for portable unlocking, the staff rotates the pull rod 56. The pull rod 56 drives the rotating rod 54 fixedly connected thereto to rotate synchronously. The rotating rod 54 drives the rotating disc 53 fixedly connected thereto to rotate, so that the rotating disc 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 also 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 be separated from the ratchet groove inside the ratchet ring 36, thus unlocking. When lock restoration is required, the pull rod 56 is released and resets under the spring force of the second spring 62.

[0072] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and 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 outer 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 outside the ratchet ring (36) is fixedly connected with a circular outer 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; 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 pushing rod (348), a clamping rod (349), a convex block (3410), and a guiding column (3411). The inner side of the bottom plate (35) is rotatably connected with a second fixing ring (342). 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 inside the guiding housing (343); Clamping blocks (345) are fixedly installed on both the clamping rod (349) and the bottom cover (344). A first spring (346) is arranged outside the clamping blocks (345) between the bottom cover (344) and the clamping rod (349). A pushing rod (348) is fixedly connected to the outer side of the clamping rod (349). One side of the clamping rod (349) far from the plug end (2) is fixedly connected with a convex block (3410) and a guiding column (3411). Corresponding sliding grooves for the pushing rod (348) and the guiding column (3411) are respectively formed on the guiding housing (343). The first fixing ring (341) is fixedly connected with the mounting shaft (32).

2. The self-locking U-shaped connector for new energy vehicles 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), 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).

3. The self-locking U-shaped connector for a new energy vehicle according to claim 2, characterized in that: The removal mechanism (33) includes an upper cover plate (331), a moving plate (332), a lower bottom plate (333), a pushing 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 pushing 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), and a tension spring (335) is connected between the two groups of circular columns. A card slot is provided on the moving plate (332), and 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 chute corresponding to the pushing block (334) is provided on the upper cover plate (331), and a chute 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).

4. The self-locking U-shaped connector for new energy vehicles according to claim 3, characterized in that: The reset mechanism (6) includes a guide rod (61), a second spring (62), a pushing 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 outer side 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 pushing block (63) is fixedly connected to the end of the connecting block (64) away from the long strip block. The pushing block (63) corresponds to the push rod (348).

5. The self-locking U-shaped connector for new energy vehicles according to claim 4, wherein: A groove corresponding to the pushing block (63) is provided on the push rod (348), and a circular groove is provided on the circular outer shell (31).

6. The self-locking U-shaped connector for a new energy vehicle according to claim 5, characterized in that: 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 grooves. A cylindrical block is provided on the socket end (1), and an arc groove corresponding to the cylindrical block is provided on the auxiliary mating rod (7).

7. A self-locking U-shaped connector for a new energy vehicle according to claim 6, characterized in that: 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).

8. The self-locking U-shaped connector for a new energy vehicle according to claim 6, wherein: 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 fixing block (55), and a pulling 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 fixing block (55) is fixedly connected to the plug end (2). The rotating rod (54) rotates inside the fixing block (55). A pulling rod (56) is fixedly connected to the outer side of the rotating rod (54).

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