Wireless charging station for multiple AGV transport vehicles

Abstract

The utility model relates to the technical field of intelligent warehouse logistics automation, in particular to a wireless charging station for multiple AGV transport vehicles, which comprises a public channel, a charging position, a screw rod, a movable frame and the like, the charging position is arranged on the side edge of the public channel in parallel, a wireless charging pile is arranged at the rear end of the charging position, a first motor is arranged in the public channel, and a second motor is arranged in the public channel. A plurality of supporting frames are slidably connected into the public channel, the tops of the supporting frames are flush with the top face of the public channel, the left side and the right side of the upper portion of the movable frame are connected with push plates, and the push plates are in extrusion fit with the supporting frames; an adjusting assembly used for rotating the AGV is arranged in the supporting disc. Through the synergistic effect of the public channel, the moving frame, the lead screw, the supporting frame and the reset spring, a dynamic path switching mechanism is formed, the path utilization efficiency of the multi-AGV system is improved, and it is avoided that charging work interferes with normal logistics dynamic scheduling.

Description

Technical Field

[0001] This utility model relates to the field of intelligent warehousing and logistics automation technology, and in particular to a wireless charging station that can power multiple AGV transport vehicles. Background Technology

[0002] Automated Guided Vehicles (AGVs) are intelligent equipment that enables unmanned material transportation based on navigation technology, and are widely used in warehousing and logistics, intelligent manufacturing, and flexible production systems. Currently, AGVs are mainly powered by batteries, and their charging methods can be divided into two categories: traditional contact charging and wireless charging. Contact charging achieves power transfer through mechanical plugging and requires manual intervention; while wireless charging technology, based on the principles of electromagnetic induction or magnetic resonance coupling, provides charging services to AGVs through non-contact energy transfer, and has advantages such as high safety, low maintenance costs, and automated integration, gradually becoming the mainstream development direction.

[0003] Existing AGV wireless charging solutions mostly employ a fixed charging pile layout, requiring pre-set grid-like charging points along the AGV's operating path. When the AGV's battery level falls below a threshold, the scheduling system guides it to a designated charging area, where the onboard receiver aligns with the ground transmitter to initiate the charging process. This technology relies on strict path planning and positioning accuracy, requiring the AGV to travel in a fixed direction to the charging point. Some solutions extend the charging coverage area through electromagnetic rails or segmented power supply designs, but these still require the AGV to stop at specific coordinates to complete the docking.

[0004] Although existing wireless charging technology has solved the physical limitations of contact charging, its practical application still faces significant bottlenecks: First, to ensure energy transmission efficiency, wireless charging requires the transmitter and receiver to be in close contact, but charging piles cannot be directly integrated into the regular movement path of AGVs. Second, AGVs can only dock with charging devices in a single direction or posture, which is not flexible enough and can easily lead to charging failure due to posture deviation in complex operation scenarios. Utility Model Content

[0005] To overcome the drawbacks of path dependence and direction constraints, this invention provides a wireless charging station that can be used for multiple AGV transport vehicles.

[0006] A wireless charging station for multiple AGV transport vehicles includes a common channel, charging positions, a lead screw, and a movable frame. The charging positions are arranged parallel to the side of the common channel, and a wireless charging pile is installed at the rear end of each charging position. A first motor is installed inside the common channel. A communicating groove is provided between the common channel and the charging positions. The movable frame is slidably connected to the groove. One end of the lead screw is rotatably connected to the charging position, and the other end is fixedly connected to the output shaft of the first motor. The movable frame is threadedly connected to the lead screw. An electric push rod is installed on the upper part of the movable frame. A support plate is provided, and the piston rod of the electric push rod is connected to the bottom of the support plate. Several support frames are slidably connected in the common channel. Two support frames are located on the left and right sides of the movable frame, respectively. A return spring is provided on the side of the support frame that slides into the common channel. One end of the return spring is connected to the common channel, and the other end is connected to the support frame. The top of the support frame is flush with the top surface of the common channel. Push plates are connected to the left and right sides of the upper part of the movable frame. The push plates are pressed and engaged with the support frame. An adjustment component for rotating the AGV is provided in the support plate.

[0007] As a further preferred embodiment, the adjustment assembly includes a cover plate, the top of which is connected to the support plate, a second motor is mounted on the bottom of the cover plate and located inside the support plate, and a turntable is provided on the top of the cover plate and the support plate, with the output shaft of the second motor passing through the cover plate and splinedly connected to the turntable.

[0008] As a further preferred embodiment, the top surface of the turntable is provided with a rubber pad.

[0009] As a further preferred embodiment, the support frame is rotatably connected to the pressing slope of the push plate by a vertical roller.

[0010] As a further preferred embodiment, the charging position is connected to an isolation cover, which encloses the wireless charging station.

[0011] As a further preferred embodiment, both the public channel and the top surface of the charging station are equipped with identification cards.

[0012] This utility model has the following advantages:

[0013] 1. Through the coordinated action of the common channel, the moving frame, the lead screw, the support frame and the return spring, a dynamic path switching mechanism is formed. When the moving frame slides along the slide, the push plate squeezes the support frame to retract it into the common channel. The charging position is physically integrated with the main path of the AGV, which improves the path utilization efficiency of the multi-AGV system and avoids the charging operation from interfering with the normal dynamic scheduling of logistics.

[0014] 2. By adjusting the linkage between the components, electric push rod, and support plate, after the support plate lifts the AGV away from the channel, the second motor drives the turntable to rotate 180°, forcibly adjusting the orientation of the AGV's charging port, breaking through the limitation of a single docking direction, and supporting AGVs in any driving direction to complete the charging port alignment, enhancing the attitude compatibility of the charging system, and adapting to the concurrent charging needs of multi-directional AGV clusters in complex scenarios. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a cross-sectional view showing the connection relationship between the first motor and the lead screw of this utility model.

[0017] Figure 3 This is an exploded view showing the connection relationship between the movable frame and the electric push rod of this utility model.

[0018] Figure 4 This is a cross-sectional view showing the connection relationship between the support frame and the reset spring of this utility model.

[0019] Figure 5 This is an exploded view showing the connection relationship between the second motor and the cover plate of this utility model.

[0020] Among them: 1-public passage, 2-charging position, 201-wireless charging pile, 3-first motor, 4-lead screw, 5-moving frame, 6-electric push rod, 7-support plate, 8-push plate, 9-support frame, 10-reset spring, 11-second motor, 12-cover plate, 13-turntable, 14-rubber pad, 15-roller, 16-isolation cover, 17-identification card. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "setting," "installing," "connecting," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0022] Example: A wireless charging station for multiple AGV transport vehicles, such as... Figures 1-3As shown, the system includes a common channel 1, a charging position 2, a wireless charging pile 201, a first motor 3, a lead screw 4, a moving frame 5, an electric push rod 6, a support plate 7, a push plate 8, a support frame 9, a return spring 10, and an adjustment assembly. The charging position 2 is arranged parallel to the side of the common channel 1. The wireless charging pile 201 is installed at the rear end of the charging position 2. The first motor 3 is installed inside the common channel 1. A connecting groove is provided inside the common channel 1 and the charging position 2. The moving frame 5 is slidably connected to the groove. One end of the lead screw 4 is rotatably connected to the charging position 2, and the other end is fixedly connected to the output shaft of the first motor 3. The moving frame 5 is threadedly connected to the lead screw 4. An electric push rod 6 is installed on the upper part of the mobile frame 5. A support plate 7 is set on the top of the mobile frame 5. The piston rod of the electric push rod 6 is connected to the bottom of the support plate 7. Several support frames 9 are slidably connected in the common channel 1. Two support frames 9 are located on the left and right sides of the mobile frame 5 respectively. A return spring 10 is set on the side of the support frame 9 that slides into the common channel 1. One end of the return spring 10 is connected to the common channel 1, and the other end is connected to the support frame 9. The top of the support frame 9 is flush with the top surface of the common channel 1. Push plates 8 are connected to the left and right sides of the upper part of the mobile frame 5. The push plates 8 are pressed and engaged with the support frames 9. An adjustment component for rotating the AGV is set in the support plate 7.

[0023] like Figure 1 and Figure 5 As shown, the adjustment assembly includes a second motor 11, a cover plate 12, and a turntable 13. The top of the support plate 7 is connected to the cover plate 12, and the bottom of the cover plate 12 is equipped with the second motor 11. The second motor 11 is located inside the support plate 7. The cover plate 12 and the top of the support plate 7 are provided with a turntable 13. The output shaft of the second motor 11 passes through the cover plate 12 and is splinedly connected to the turntable 13.

[0024] like Figure 5 As shown, it also includes a rubber pad 14, which is provided on the top surface of the turntable 13. The rubber pad 14 buffers the impact force of the AGV falling through elastic deformation, while increasing friction to prevent the AGV from slipping during rotation. During maintenance, the staff checks the wear condition of the rubber pad 14 to ensure that its surface is free of cracks or hardening, in order to maintain its anti-slip and shock absorption performance.

[0025] like Figure 4 As shown, it also includes a roller 15. A vertical roller 15 is rotatably connected to the inclined surface of the support frame 9 and the push plate 8. The roller 15 on the inclined surface of the support frame 9 rolls with the contact pressure, converting sliding friction into rolling friction. The rotation of the roller 15 significantly reduces the resistance between the push plate 8 and the support frame 9, making the retraction action of the support frame 9 smoother.

[0026] like Figure 1As shown, it also includes an isolation cover 16. The charging position 2 is connected to the isolation cover 16. The isolation cover 16 covers the wireless charging pile 201. When the AGV enters the charging position 2, the isolation cover 16 blocks external dust, liquid splashes, or collisions and impacts that may occur during the movement of the AGV.

[0027] like Figure 1 As shown, it also includes identification cards 17. Identification cards 17 are installed on the top surfaces of both the public passage 1 and the charging station 2. The identification cards 17 provide a visual positioning reference for the AGV through reflective or coded patterns. When the AGV travels to the charging area, its onboard camera recognizes the identification card 17 and accurately stops at the preset coordinate point.

[0028] When the AGV's battery is about to run out, it automatically moves to charging station 2 for charging. The top surface of support frame 9 supports the AGV as it passes through. When the AGV identifies the charging area via identification card 17, it stops moving. At this time, the first motor 3 drives the lead screw 4 to rotate, and the moving frame 5 slides forward in the groove. The push plate 8 and support plate 7 move forward synchronously. The inclined surface of the push plate 8 presses against the inclined surface of the support frame 9, and the roller 15 reduces friction. The support frames 9 on both sides slide into the common channel 1, compressing the return spring 10. The push plate 8 maintains the state of the support frame 9. After the support plate 7 is at the bottom of the AGV, the electric push rod 6 is activated. The electric push rod 6 pushes the support plate 7 upward until it lifts the AGV. After the AGV is separated from the common channel 1, the electric push rod 6 maintains the lifted position of the support plate 7. The first motor 3 reverses and drives the mounting frame to slide back to its original position via the lead screw 4. When the push plate 8 is separated from the support frame 9, the return spring 10 rebounds, and the two support frames 9 move closer to each other and fit together, providing a support path for the AGV to pass through. After push rod 6 lifts the AGV, wireless charging pile 201 identifies the charging port position of the AGV. If the charging port of the AGV is facing the wireless charging pile 201, the state of electric push rod 6 is maintained. If the charging port of the AGV is facing the public channel 1, the second motor 11 is started. The second motor 11 drives the turntable 13 to rotate 180 degrees to adjust the orientation of the AGV. After the moving frame 5 is fully reset, electric push rod 6 releases support plate 7, and the AGV is placed on charging position 2. The charging port of the AGV is in contact with the wireless charging pile 201 for charging. After charging is completed, the wireless charging pile 201 is powered off and drives electric push rod 6 and first motor 3 in sequence. After electric push rod 6 lifts the AGV through support plate 7, first motor 3 drives the AGV to move to public channel 1 through lead screw 4 and then releases the AGV. Then first motor 3 drives the mounting frame to reset, electric push rod 6 drives piston rod to fall, support plate 7 resets downward, and AGV identifies its position through identification card 17 and drives away from the charging area.

[0029] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A wireless charging station for a plurality of AGV transport vehicles, characterized by: Including public passage (1), charging position (2), screw rod (4) and moving frame (5), the charging position (2) is arranged in parallel on the side of the public passage (1), the rear end of the charging position (2) is provided with a wireless charging pile (201), the first motor (3) is installed in the public passage (1), the public passage (1) and the charging position (2) are provided with a communication chute inside, the moving frame (5) is slidably connected in the chute, one end of the screw rod (4) is rotatably connected in the charging position (2), the other end is fixedly connected with the output shaft of the first motor (3), the moving frame (5) is threadedly connected with the screw rod (4), the electric push rod (6) is installed on the upper portion of the moving frame (5), the support disc (7) is arranged on the top of the moving frame (5), the piston rod of the electric push rod (6) is connected with the bottom of the support disc (7), a plurality of support frames (9) are slidably connected in the public passage (1), two support frames (9) are respectively located on the left and right sides of the moving frame (5), the side, into which the support frame (9) slides in the public passage (1), is provided with a reset spring (10), one end of the reset spring (10) is connected with the public passage (1), and the other end is connected with the support frame (9), the top of the support frame (9) is flush with the top surface of the public passage (1), the push plate (8) is connected to the left and right sides of the upper portion of the moving frame (5), the push plate (8) is extruded with the support frame (9), and the adjusting assembly for rotating the AGV is arranged in the support disc (7).

2. The wireless charging station for multiple AGV transport vehicles of claim 1, wherein: The adjusting assembly comprises a cover plate (12), the support disc (7) is connected with the cover plate (12), the second motor (11) is installed at the bottom of the cover plate (12), the second motor (11) is located in the support disc (7), the cover plate (12) and the support disc (7) are provided with a turntable (13) on the top, and the output shaft of the second motor (11) penetrates through the cover plate (12) and is splined with the turntable (13).

3. The wireless charging station for multiple AGV transport vehicles of claim 2, wherein: The top surface of the turntable (13) is provided with a rubber pad (14).

4. The wireless charging station for multiple AGV transport vehicles of claim 3, wherein: The support frame (9) is rotatably connected with a vertical roller shaft (15) at the extrusion inclined surface of the push plate (8).

5. A wireless charging station for a plurality of AGV transport vehicles as claimed in claim 4, characterized in that: The charging position (2) is connected with an isolation cover (16), and the isolation cover (16) wraps the wireless charging pile (201).

6. A wireless charging station for a plurality of AGV transport vehicles as claimed in claim 5, characterized in that: The top surfaces of the public passage (1) and the charging position (2) are provided with identification cards (17).

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