Intelligent locking and unlocking system for RGV battery replacement equipment

Abstract

The invention discloses an intelligent locking and unlocking system for RGV battery replacing equipment, and belongs to the technical field of RGV battery replacing equipment.The intelligent locking and unlocking system comprises a shell, an RGV trolley and a bottom beam, and the bottom beam is fixed to the bottom of an automobile; a locking mechanism is fixedly installed on the side wall of the bottom beam, a locking groove is formed in the locking mechanism, a square groove is formed in the side, close to the shell, of the locking mechanism, a clamping plate is arranged in the locking mechanism and fixedly connected to the inner wall of the square groove through a straight spring, and limiting blocks are fixedly connected to the two sides of the clamping plate. The shell is controlled to move through the RGV trolley, limiting of the lock head is relieved through magnetic repulsive force between the magnetic block and the clamping plate, then the cylinder pushes the lock head to rotate, and automatic insertion and extraction of the pin shaft in the lock groove are achieved; and after the action is completed, mechanical locking of the lock head is achieved through spring reset and magnetic force retreating, and high-reliability and low-abrasion intelligent locking and unlocking circulation is completed in combination with the rolling wheel antifriction design.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of RGV battery replacement equipment, and particularly relates to an intelligent locking and unlocking system of RGV battery replacement equipment. BACKGROUND

[0002] In the field of new energy storage and electric vehicle battery replacement, RGV trolleys (rail guided vehicles) are often used to carry battery frames (core carriers for loading batteries) for efficient shifting and battery replacement due to their stable transfer capacity. The reliable locking and unlocking between the battery frame and the RGV trolley and the fixed structure (such as the bottom beam) is a key link to ensure the safety of battery transfer and the efficiency of battery replacement.

[0003] On the one hand, the safety hazard is prominent in the non-operation state. When the RGV trolley runs with high-frequency vibration, the equipment in the battery replacement station collides accidentally or the external tool touches the lock head, the lock head is easy to shift, causing the pin shaft of the battery frame to separate from the bottom beam slot, which may cause the interruption of the battery replacement process, or even cause the battery frame to fall, posing a serious threat to the safety of equipment and personnel.

[0004] On the other hand, the automatic coordination capability is insufficient. The RGV trolley cannot realize flexible switching of locking and unlocking actions. The locking and unlocking of the existing equipment need to rely on manual intervention to adjust control parameters or step-by-step operation of independent modules. For example, the lock head driving assembly needs to be started manually when locking, and the limiting release mechanism needs to be operated additionally when unlocking. The corresponding actions cannot be automatically matched according to the battery replacement process ("take power - transfer - discharge" or "discharge - transfer - take power") and the posture of the battery frame. This not only increases the cost of manual operation, but also causes the delay of action switching, resulting in the extension of the battery replacement cycle, which is difficult to adapt to the demand of high-density and unmanned battery replacement scenes.

[0005] In summary, the locking and unlocking technology of the existing RGV battery replacement equipment has obvious shortcomings in safety, durability, reliability and automation efficiency. Therefore, an intelligent locking and unlocking device is needed to solve the above problems and improve the safety, stability and efficiency of battery frame transfer and battery replacement operation. SUMMARY

[0006] The purpose of the present application is to solve the safety hazard that the lock head is easy to shift due to vibration and accidental touch in the non-operation state when the battery frame with a pin shaft is replaced by the RGV trolley, and the problem that the RGV trolley cannot switch between locking and unlocking, and to propose an intelligent locking and unlocking system of RGV battery replacement equipment.

[0007] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0008] The application discloses an RGV battery replacing equipment intelligent locking and unlocking system.

[0009] Preferably, a battery frame is arranged above the RGV trolley, a battery pack is fixedly connected in the battery frame, a pin shaft is fixedly installed on the side of the battery frame, a lifting column is fixedly installed on the side of the RGV trolley, and a storage groove is formed above the RGV trolley and close to the lifting column.

[0010] Preferably, a shell is fixedly connected above the lifting column, a magnetic block is fixedly connected above the shell, a column body is arranged in the shell, a sliding groove is formed in the side wall of the shell, the column body is slidably connected to the inside of the sliding groove through the clamping blocks fixedly connected to the two sides of the column body, and the cooperation of the sliding groove and the clamping blocks simultaneously plays a role of limiting the column body, preventing the column body from being separated from the shell due to the rebound of the compression spring, a roller is rotatably connected to the end of the column body close to the locking mechanism, and the end of the column body away from the locking mechanism is fixedly connected to the inner wall of the shell through a compression spring.

[0011] Preferably, the material of the clamping plate is a magnet, and the end of the clamping plate facing the magnetic block is a positive electrode; the end of the magnetic block facing the clamping plate is a positive electrode, so that the same-pole repulsion is achieved, and the elastic force of the straight spring is smaller than the repulsive force between the clamping plate and the magnetic block.

[0012] Preferably, the size of the clamping plate is adapted to the square groove, the size of the column body is adapted to the shell, the size of the clamping block is adapted to the sliding groove, and the size of the pin shaft is adapted to the lock groove.

[0013] Preferably, the part of the clamping plate exposed outside the square groove of the locking mechanism is used for locking the lock head, and the part is designed in a slope shape.

[0014] Preferably, in the resetting process, the slope shape of the clamping plate generates a pushing force to push the clamping plate into the square groove, and after complete resetting, the rebound of the compression spring causes the clamping plate to lock the lock head.

[0015] Compared with the prior art, the application has the following beneficial effects:

[0016] 1. The Z direction + X direction type locking mode of the RGV trolley, through the cooperation of the lifting column and its own lifting function, with the help of the same pole repulsion force of the magnetic block and the clamping plate, the lock head limiting is accurately released, the column body pushes the lock head to move, the pin shaft is stably locked into the lock groove, and then the X direction translation is completed to completely lock the pin shaft, after the subsequent magnetic repulsion force disappears, the clamping plate rebounds to lock the lock head, effectively avoiding the displacement of the lock head during non-operation, and the roller reduces the friction loss throughout the process, finally ensuring the safety, stability and durability of the battery frame locking mechanism.

[0017] 2. The Z direction + X direction type unlocking mode of the RGV trolley, through the cooperation of the lifting column and its own lifting function, with the help of the same pole repulsion force of the magnetic block and the clamping plate, the lock head limiting is accurately released, the column body pushes the lock head to move, the pin shaft is stably locked into the lock groove, and then the X direction translation is completed to completely lock the pin shaft, after the subsequent magnetic repulsion force disappears, the clamping plate rebounds to lock the lock head, effectively avoiding the displacement of the lock head during non-operation, and the roller reduces the friction loss throughout the process, finally ensuring the safety, stability and durability of the battery frame locking mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure section view of an intelligent locking and unlocking system of an RGV battery swapping equipment is provided for the present application.

[0019] Figure 2 An enlarged schematic view of the structure at A in the present application Figure 1

[0020] Figure 3 A structure section front view of an intelligent locking and unlocking system of an RGV battery swapping equipment is provided for the present application.

[0021] Figure 4 A locking mechanism front view of an intelligent locking and unlocking system of an RGV battery swapping equipment is provided for the present application.

[0022] Figure 5 A three-dimensional structure schematic view of an intelligent locking and unlocking system of an RGV battery swapping equipment is provided for the present application.

[0023] Figure 6 A structure section of a locking mechanism of an intelligent locking and unlocking system of an RGV battery swapping equipment is provided for the present application. Figure 1

[0024] Figure 7 An enlarged schematic view of the structure at B in the present application Figure 4

[0025] An exploded view of a locking mechanism of an intelligent locking and unlocking system of an RGV battery swapping equipment is provided for the present application. Figure 8

[0026] Figure 9 ​​​The structure explosion map of the shell of the RGV battery replacing equipment intelligent locking and unlocking system is provided in the application.

[0027] Figure 10 The structure section of the locking mechanism of the RGV battery replacing equipment intelligent locking and unlocking system is provided in the application. Figure 2 ;

[0028] Figure 11 The application provides an enlarged schematic view of the structure at C. Figure 10

[0029] The figure mark: 100, the locking mechanism; 101, the straight spring; 102, the limiting block; 103, the clamping plate; 104, the square groove; 105, the lock head; 106, the lock groove; 200, the shell; 201, the magnetic block; 202, the compression spring; 203, the column; 204, the roller; 205, the clamping block; 206, the sliding groove; 4, the RGV trolley; 5, the battery frame; 6, the bottom beam; 7, the storage groove; 8, the lifting column; 9, the pin shaft. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0031] In the embodiments of the application, refer to Figures 1 to 11 The RGV battery replacing equipment intelligent locking and unlocking system comprises a shell 200, an RGV trolley 4 and a bottom beam 6, the bottom beam 6 is fixed at the bottom of the automobile, a locking mechanism 100 is fixedly installed on the side wall of the bottom beam 6, a lock groove 106 is formed in the locking mechanism 100, a square groove 104 is formed in the side of the locking mechanism 100 close to the shell 200, a clamping plate 103 is arranged in the locking mechanism 100, the clamping plate 103 is fixedly connected to the inner wall of the square groove 104 through a straight spring 101, limiting blocks 102 are fixedly connected to the two sides of the clamping plate 103, the limiting blocks 102 are slidingly connected to the inside of the locking mechanism 100, a lock head 105 is rotatably connected to the inside of the locking mechanism 100, a bayonet is formed in the end of the lock head 105 close to the clamping plate 103, a battery frame 5 is placed above the RGV trolley 4, a battery pack is fixedly connected to the inside of the battery frame 5, pin shafts 9 are fixedly installed on the side edges of the battery frame 5, lifting columns 8 are fixedly installed on the side edges of the RGV trolley 4, and a storage groove 7 is formed in the position above the RGV trolley 4 and close to the lifting column 8.

[0032] ​By the above technical scheme, the RGV trolley 4 realizes the locking operation by Z-direction and X-direction combined motion: first, the lifting column 8 is started, the shell 200 connected at the top of the lifting column 8 is driven to rise along the Z-direction, the column 203 inside the shell 200 is aligned with the lock head 105 above the locking mechanism 100; then, the RGV trolley 4 starts the lifting function of itself, the battery frame 5 is lifted, the shell 200 is synchronously moved upward with the lifting column 8, and the magnetic block 201 installed at the top of the shell 200 (the opposite end of the magnetic block 201 and the clamping plate 103 in the square groove 104 of the locking mechanism 100 is provided as a positive electrode) gradually shortens the distance between the magnetic block 201 and the clamping plate 103. Since the preset elastic force of the straight spring 101 is smaller than the magnetic repulsion force between the magnetic block 201 and the clamping plate 103, under the action of the magnetic force, the clamping plate 103 slides along the limiting block 102 to the inside of the square groove 104, thereby releasing the limiting constraint on the lock head 105. The RGV trolley 4 continues to lift, the column 203 inside the shell 200 pushes the lock head 105 to rotate upward, and the pin shaft 9 beside the battery frame 5 gradually embeds into the lock slot 106 of the locking mechanism 100. Then, the RGV trolley 4 is switched to X-direction horizontal translation, drives the battery frame 5 to move, so that the pin shaft 9 completely slides into the locking position of the lock slot 106; in this process, the column 203 gradually separates from the lock head 105 with the translation movement, and the lock head 105 returns to the initial position without external force, and the pin shaft 9 is wrapped and locked. At the same time, the shell 200 moves away from the locking mechanism 100 with the trolley, and the magnetic repulsion force between the magnetic block 201 and the clamping plate 103 disappears, the clamping plate 103 is pushed back to the extended state by the straight spring 101, and re-clamped into the clamping port at the end of the lock head 105, realizing the mechanical locking of the lock head 105, effectively preventing the displacement of the lock head 105 due to vibration or external force in the non-operation state. During the whole process, the roller 204 at the end of the column 203 continuously acts, significantly reducing the friction loss between the column 203 and the lock head 105, and improving the smoothness of the action and the service life of the mechanism.

[0033] Specifically, the lifting column 8 is fixedly connected with the shell 200 above, the magnetic block 201 is fixedly connected above the shell 200, the column 203 is arranged inside the shell 200, the slide groove 206 is formed in the side wall of the shell 200, the column 203 is slidably connected inside the slide groove 206 through the clamping blocks 205 fixedly connected at both sides of the column 203, and the cooperation of the slide groove 206 and the clamping blocks 205 simultaneously plays a role in limiting the column 203, preventing the column 203 from being separated from the shell 200 due to the rebound of the compression spring 202, the roller 204 is rotatably connected to one end of the column 203 close to the locking mechanism 100, and the other end of the column 203 away from the locking mechanism 100 is fixedly connected to the inner wall of the shell 200 through the compression spring 202.

[0034] By the above technical solution, the RGV trolley 4 realizes the unlocking operation by Z-direction and X-direction combined motion: first, the lifting column 8 is started, the shell 200 is driven to rise along the Z-direction, the column 203 inside the shell 200 is accurately aligned with the lock head 105 above the locking mechanism 100; then, the RGV trolley 4 starts the lifting function of itself, drives the battery frame 5 and the shell 200 to move upward synchronously. In this process, the magnetic block 201 provided at the top of the shell 200 (which is provided with the same polarity as the clamping plate 103 in the square groove 104 of the locking mechanism 100, and generates magnetic repulsion) gradually reduces the distance between the magnetic block 201 and the clamping plate 103, and the magnetic repulsion force overcomes the pre-tightening force of the straight spring 101, pushes the clamping plate 103 to slide along the limiting block 102 into the square groove 104, thereby releasing the mechanical limiting of the lock head 105.

[0035] With the continuous lifting of the RGV trolley 4, the column 203 inside the shell 200 (the end of which is equipped with a roller 204) contacts and exerts a pushing force on the lock head 105, causing the lock head 105 to rotate upward and gradually release the wrapping locking of the side pin shaft 9 of the battery frame 5. Then, the RGV trolley 4 switches to X-direction horizontal translation, driving the battery frame 5 and the pin shaft 9 to move out of the lock slot 106 along the horizontal direction. During this translation process, the column 203 is subjected to the reverse force of the lock head 105, which overcomes the elastic force of the compression spring 202 at the tail end, and shrinks into the shell 200, thereby avoiding motion interference with the locking mechanism 100, and ensuring that the pin shaft 9 can smoothly escape from the lock slot 106.

[0036] When the pin shaft 9 completely escapes from the lock slot 106, the RGV trolley 4 performs a Z-direction downward action, driving the battery frame 5 and the shell 200 to fall synchronously. With the downward movement of the shell 200, the column 203 gradually comes out of contact with the lock head 105, and rapidly rebounds to the initial extended position under the action of the compression spring 202. At the same time, the shell 200 moves away from the locking mechanism 100, and the magnetic repulsion force between the magnetic block 201 and the clamping plate 103 disappears, the straight spring 101 pushes the clamping plate 103 to extend into the square groove 104 again, and clamps into the socket at the end of the lock head 105, restoring the mechanical locking of the lock head 105, effectively preventing accidental displacement in the non-operation state. During the entire unlocking process, the roller 204 at the end of the column 203 continuously acts, converting the sliding friction between the column 203 and the lock head 105 into rolling friction, significantly reducing wear and tear, improving the reliability of the action and the service life of the mechanism.

[0037] Specifically, the material of the card plate 103 is a magnet, and the end facing the magnetic block 201 is positive, and the end of the magnetic block 201 facing the card plate 103 is positive, so as to achieve the same repulsion, the elastic force of the straight spring 101 is smaller than the repulsive force between the card plate 103 and the magnetic block 201, the size of the card plate 103 is adapted to the square groove 104, the size of the column 203 is adapted to the shell 200, the size of the card block 205 is adapted to the sliding groove 206, the size of the pin shaft 9 is adapted to the lock slot 106, the part of the card plate 103 exposed outside the square groove 104 of the locking mechanism 100 is used for locking the lock head 105, and the upper part of the part is designed to be inclined, and the lock head 105 generates a pushing force to push the card plate 103 into the square groove 104 during the reset process, and after complete reset, the compression spring 202 rebounds to make the card plate 103 lock the lock head 105.

[0038] Through the above technical scheme, the magnet used in the application is a neodymium iron boron strong magnet, and the magnetic force is much larger than that of an ordinary magnet. In addition, the magnetic force action path is effectively concentrated through magnetic shielding or magnetic guiding structure (such as the repulsion between the magnetic block 201 and the card plate 103) in the magnetic circuit design, which reduces the dispersion influence of the iron shell 200 on the magnetic field and ensures the stable action of the magnetic repulsion force within the effective distance.

[0039] Working principle:

[0040] The application cooperates with the lifting column 8 and the lifting and moving action of the RGV trolley 4 to drive the shell 200 and the column 203, the magnetic block 201 and the locking mechanism 100 inside the shell 200 to interact, to overcome the spring resistance by using the magnetic repulsion force, to realize the precise limiting release of the card plate 103 to the lock head 105, and to push the lock head 105 to rotate by the column 203, to complete the automatic insertion and separation of the pin shaft 9 of the battery frame 5 in the lock slot 106; the whole action is coupled with the spring reset mechanism through magnetic force-mechanical force coupling and the antifriction design of the roller 204, to achieve high reliability, low wear and tear unlocking cycle, to effectively prevent the displacement of the lock head 105 in the non-operation state, and to ensure the safety of battery transfer.

[0041] The above is only a preferred specific embodiment of the application, but the protection scope of the application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. An RGV battery replacement device intelligent locking and unlocking system, comprising a shell (200), an RGV trolley (4) and a bottom beam (6), the bottom beam (6) being fixed at the bottom of the automobile; characterized in that, The bottom beam (6) side wall is fixedly provided with a locking mechanism (100), a locking groove (106) is arranged in the locking mechanism (100), a square groove (104) is arranged in the side of the locking mechanism (100) close to the shell (200), a clamping plate (103) is arranged in the locking mechanism (100), the clamping plate (103) is fixedly connected to the inner wall of the square groove (104) through a straight spring (101), limit blocks (102) are fixedly connected to the two sides of the clamping plate (103), the limit blocks (102) are slidingly connected to the inside of the locking mechanism (100), a lock head (105) is rotatably connected to the inside of the locking mechanism (100), and a clamping hole is arranged in one end of the lock head (105) close to the clamping plate (103).

2. The RGV battery replacement device intelligent locking and unlocking system according to claim 1, characterized in that, The RGV trolley (4) is provided with a battery frame (5) above, the battery frame (5) is fixedly connected with a battery pack inside, the battery frame (5) is fixedly provided with a pin shaft (9) on the side, the RGV trolley (4) is fixedly provided with a lifting column (8) on the side, and a storage groove (7) is arranged on the RGV trolley (4) above close to the lifting column (8). 3.The RGV battery swap device intelligent locking and unlocking system according to claim 2, characterized in that, The lifting column (8) is fixedly connected with a shell (200) above, the shell (200) is fixedly connected with a magnetic block (201) above, the shell (200) is provided with a column body (203) inside, the shell (200) is provided with a sliding groove (206) on the side wall, the column body (203) is slidingly connected to the inside of the sliding groove (206) through the clamping blocks (205) fixedly connected to the two sides of the column body (203), and the cooperation of the sliding groove (206) and the clamping blocks (205) simultaneously plays a limiting role on the column body (203), so that the column body (203) is prevented from being separated from the shell (200) due to the rebound of the compression spring (202), and the column body (203) is rotatably connected with a roller (204) at one end close to the locking mechanism (100), and the column body (203) is fixedly connected to the inner wall of the shell (200) at the other end away from the locking mechanism (100) through the compression spring (202).

4. The RGV battery replacement device intelligent locking and unlocking system according to claim 1, characterized in that, The material of the clamping plate (103) is magnet and the end close to the magnetic block (201) is positive, and the end of the magnetic block (201) close to the clamping plate (103) is positive, so that the same poles repel each other, and the elastic force of the straight spring (101) is smaller than the repulsive force between the clamping plate (103) and the magnetic block (201).

5. The RGV battery replacement device intelligent locking and unlocking system according to claim 3, characterized in that, The size of the clamping plate (103) is adapted to the square groove (104), the size of the column body (203) is adapted to the shell (200), the size of the clamping block (205) is adapted to the sliding groove (206), and the size of the pin shaft (9) is adapted to the locking groove (106).

6. The RGV battery replacement device intelligent locking and unlocking system according to claim 2, characterized in that, The part of the clamping plate (103) exposed outside the square groove (104) of the locking mechanism (100) is used for locking the lock head (105), and the upper part of the part is designed in a slope shape.

7. The RGV battery replacement device intelligent locking and unlocking system according to claim 4, characterized in that, During the resetting process of the lock head (105), the slope shape of the clamping plate (103) generates a pushing force to push the clamping plate (103) into the square groove (104), and after complete resetting, the rebound of the compression spring (202) causes the clamping plate (103) to clamp the lock head (105).

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