Wireless charging pile and unmanned charging system comprising the same

Abstract

The utility model provides a kind of wireless charging pile and the unmanned charging system comprising it, wireless charging pile includes pile body and wireless transmitter, wireless transmitter is installed on pile body, wireless charging pile further includes protection plate, protection plate is arranged in the side of wireless transmitter for interfacing unmanned fork truck and protrudes towards unmanned fork truck relative to wireless transmitter, protection plate is used to abut with unmanned fork truck, protection plate has openwork structure, openwork structure is used to provide avoidance space for the charging induction of wireless transmitter, along the interfacing direction of wireless transmitter and unmanned fork truck, the maximum distance between the surface of protection plate for abutting unmanned fork truck and wireless transmitter is within the charging induction distance of wireless transmitter. By setting protection plate in wireless charging pile, and protection plate is located in the side of wireless transmitter for interfacing unmanned fork truck, when charging, by the abutment of protection plate and unmanned fork truck, wireless transmitter does not directly contact with unmanned fork truck, to avoid wireless transmitter being squeezed.

Description

Technical Field

[0001] This utility model relates to the field of unmanned forklifts, and in particular to a wireless charging pile and an unmanned charging system including the wireless charging pile. Background Technology

[0002] With the rapid development of unmanned warehousing and logistics systems, unmanned forklifts, as core handling equipment, are gradually evolving from traditional manual charging to fully automated wireless charging. Wireless charging solutions typically consist of a ground-mounted wireless charging station (including a wireless transmitter) and a wireless receiver installed on the unmanned forklift.

[0003] However, during the automatic parking and charging process of unmanned forklifts, docking anomalies often occur due to positioning errors, mechanical errors, and blind spots in perception. This can create the illusion that the forklifts are docked but not actually charging, and there have even been instances where the wireless transmitters have been damaged due to the unmanned forklifts and wireless charging stations being too close together. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect that the charging equipment will be damaged when the existing wireless charging pile is docked with the unmanned forklift, and to provide a wireless charging pile and an unmanned charging system including the wireless charging pile.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A wireless charging station for providing power to an unmanned forklift includes a station body and a wireless transmitter mounted on the station body. The wireless charging station also includes a protective plate disposed on the side of the wireless transmitter for docking with the unmanned forklift and protruding towards the unmanned forklift relative to the wireless transmitter. The protective plate is used to abut against the unmanned forklift. The protective plate has a perforated structure to provide clearance for the charging induction of the wireless transmitter. Along the docking direction between the wireless transmitter and the unmanned forklift, the maximum distance between the protective plate abutting against the surface of the unmanned forklift and the wireless transmitter is within the charging induction distance of the wireless transmitter.

[0007] In this technical solution, a protective plate is installed on the wireless charging pile, located on the side of the wireless transmitter used to dock with the unmanned forklift. During charging, the protective plate abuts against the unmanned forklift, preventing direct contact between the wireless transmitter and the forklift and thus avoiding damage to the wireless transmitter. Furthermore, when the wireless transmitter is charging the unmanned forklift, no other structural components should obstruct it along the docking direction. The perforated structure prevents the protective plate from obstructing the wireless transmitter and thus avoids affecting charging efficiency.

[0008] Preferably, along the docking direction, the wireless transmitter is connected to the protective plate, and the protective plate and the wireless transmitter are capable of moving synchronously relative to the pile body.

[0009] In this technical solution, by connecting the wireless transmitter to the protection board, the position of the wireless transmitter can be adjusted by synchronously moving the wireless transmitter and the protection board along the docking direction, so as to achieve better docking with the unmanned forklift.

[0010] Preferably, the wireless charging station includes a drive mechanism connected to the wireless transmitter, the drive mechanism being used to drive the protection board and the wireless transmitter to move.

[0011] Preferably, the wireless transmitter is movable relative to the protective plate along the docking direction.

[0012] In this technical solution, by setting the wireless transmitter to be movable relative to the protective plate, the position of the wireless transmitter can be further adjusted, achieving better docking with the unmanned forklift.

[0013] Preferably, the wireless charging pile further includes a positioning sensor and a positioning indicator structure. The positioning sensor is connected to the wireless transmitter, and the positioning indicator structure is connected to the protection board. The positioning indicator structure and the positioning sensor are configured such that when the positioning sensor detects the positioning indicator structure, the distance between the protection board and the wireless transmitter is within the signal matching distance of the wireless transmitter.

[0014] In this technical solution, the position of the wireless transmitter is detected by setting up a position sensor and a position indication structure, thereby achieving precise docking with the unmanned forklift.

[0015] Preferably, the positioning sensor is a photoelectric sensor.

[0016] Preferably, the wireless charging pile further includes a limiting member, an elastic member, and a connecting shaft extending along the docking direction. The connecting shaft is movably connected to the wireless transmitter. One end of the connecting shaft is connected to the protective plate. The limiting member is disposed at the other end of the connecting shaft. The limiting member is used to restrict the degree of freedom of the connecting shaft to move relative to the wireless transmitter along the docking direction. The elastic member is compressed between the protective plate and the wireless transmitter.

[0017] In this technical solution, when the protection plate is not in contact with the unmanned forklift, the protection plate can move synchronously with the wireless transmitter. When the protection plate is in contact with the unmanned forklift, under the power of the drive mechanism and the pressure of the unmanned forklift, the protection plate and the wireless transmitter move relative to each other, and the elastic element is further compressed. When the charging is completed, the drive mechanism drives the wireless transmitter to retract, and the elastic element is gradually released until the limit member contacts the wireless transmitter, and the protection plate retracts together with the wireless transmitter.

[0018] Preferably, the wireless charging pile further includes a enclosure structure surrounding the outer periphery of the protective plate. The enclosure structure has a first end and a second end along the docking direction. The first end is connected to the pile body, and the second end is connected to the protective plate. The enclosure structure is capable of extending and retracting along the docking direction.

[0019] In this technical solution, by setting up a enclosure structure, dust and foreign objects can be prevented from entering the charging pile.

[0020] An unmanned charging system includes an unmanned forklift and a wireless charging station as described above, wherein the unmanned forklift has a wireless receiver that can be paired with the wireless transmitter.

[0021] Preferably, the unmanned forklift also includes a wired charging interface, which is located close to the wireless receiver.

[0022] In this technical solution, by equipping the unmanned forklift with a wired charging interface, the unmanned forklift can be charged via wired charging when the wireless charging function is damaged, thereby improving the reliability of the unmanned forklift.

[0023] The positive and progressive effects of this utility model are as follows: By setting a protective plate on the wireless charging pile, and placing the protective plate on the side of the wireless transmitter used to dock with the unmanned forklift, during charging, the protective plate abuts against the unmanned forklift, preventing the wireless transmitter from directly contacting the forklift and avoiding damage to the wireless transmitter. Furthermore, when the wireless transmitter is charging the unmanned forklift, there should be no other structural components obstructing it along the docking direction; the hollow structure prevents the protective plate from obstructing the wireless transmitter and thus avoids the protective plate affecting charging efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a charging pile according to an embodiment of the present invention.

[0025] Figure 2 This is a partial structural schematic diagram (I) of a charging pile according to an embodiment of the present invention.

[0026] Figure 3 This is a partial structural schematic diagram (II) of a charging pile according to an embodiment of the present invention.

[0027] Figure 4 This is a partial structural schematic diagram (III) of a charging pile according to an embodiment of the present invention.

[0028] Figure 5 This is a partial structural schematic diagram (four) of a charging pile according to an embodiment of the present invention.

[0029] Figure 6 This is a partial structural schematic diagram (V) of a charging pile according to an embodiment of the present invention.

[0030] Figure 7 This is a schematic diagram (I) of a wireless transmitter according to an embodiment of the present invention.

[0031] Figure 8 This is a schematic diagram (II) of the structure of a wireless transmitter according to an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] Wireless charging station 100

[0034] Pile body 1

[0035] Wireless transmitter 2

[0036] Protection board 3

[0037] Drive mechanism 4

[0038] Position sensor 51

[0039] Position indication structure 52

[0040] Limiting component 61

[0041] Connecting shaft 62

[0042] Elastic element 63

[0043] Bracket 7

[0044] Guide shaft 8

[0045] Enclosure Structure 9 Detailed Implementation

[0046] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0047] like Figures 1-8As shown, this embodiment provides a wireless charging station 100 for providing power to an unmanned forklift. It includes a station body 1 and a wireless transmitter 2, with the transmitter mounted on the station body 1. The wireless charging station 100 also includes a protective plate 3, which is located on the side of the wireless transmitter 2 that docks with the unmanned forklift and protrudes towards the unmanned forklift. The protective plate 3 is used to abut against the unmanned forklift. The protective plate 3 has a hollow structure, which provides clearance for the charging induction of the wireless transmitter 2. Along the docking direction between the wireless transmitter 2 and the unmanned forklift, the maximum distance between the protective plate 3 (for abutting the unmanned forklift) and the wireless transmitter 2 is within the charging induction distance of the wireless transmitter 2. By providing a protective plate 3 in the wireless charging station 100, and with the protective plate 3 located on the side of the wireless transmitter 2 that docks with the unmanned forklift, during charging, the protective plate 3 abuts against the unmanned forklift, preventing the wireless transmitter 2 from directly contacting the unmanned forklift and avoiding damage to the wireless transmitter 2. When the wireless transmitter 2 is charging the unmanned forklift, there should be no other structural components blocking it along the docking direction. The hollow structure prevents the protection plate 3 from blocking the wireless transmitter 2 and avoids the protection plate 3 from affecting the charging efficiency.

[0048] In this embodiment, the charging sensing distance refers to the fact that, in the prior art, the wireless transmitter 2 and the wireless receiver need to be within a certain distance range for the wireless transmitter 2 to charge the wireless receiver. This distance range is the charging sensing distance of the wireless transmitter 2.

[0049] In this embodiment, the wireless transmitter 2 is connected to the protective plate 3 along the docking direction, and the protective plate 3 and the wireless transmitter 2 can move synchronously relative to the pile 1. By connecting the wireless transmitter 2 to the protective plate 3, the synchronous movement of the wireless transmitter 2 and the protective plate 3 along the docking direction can adjust the position of the wireless transmitter 2, achieving better docking with the unmanned forklift.

[0050] Of course, in other embodiments, the wireless transmitter 2 and the protection plate 3 can also be fixed relative to the pile body 1. When the unmanned forklift is connected to the wireless charging pile 100, improving the docking accuracy of the unmanned forklift can ensure the reliability of charging, which will not be elaborated here.

[0051] In this embodiment, as Figure 3 , Figure 5 and Figure 6 As shown, the wireless charging station 100 includes a drive mechanism 4, which is connected to the wireless transmitter 2. The drive mechanism 4 is used to drive the protection board 3 and the wireless transmitter 2 to move.

[0052] Simultaneously, the wireless transmitter 2 can move relative to the protective plate 3 along the docking direction. By setting the wireless transmitter 2 to be movable relative to the protective plate 3, the position of the wireless transmitter 2 can be further adjusted, achieving better docking with the unmanned forklift.

[0053] When the unmanned forklift needs to be charged, under normal circumstances, the unmanned forklift first moves to the vicinity of the wireless charging station 100 and docks with the wireless charging station 100. The wireless transmitter 2 moves in a small range along the docking direction to achieve precise docking between the wireless transmitter 2 and the wireless receiver, thereby realizing the charging of the unmanned forklift.

[0054] Of course, in other embodiments, the wireless transmitter 2 can also be fixed relative to the protection plate 3, and the distance between the wireless transmitter 2 and the protection plate 3 for contacting the surface of the unmanned forklift remains unchanged, ensuring that the distance is within the charging sensing distance of the wireless transmitter 2, which will not be elaborated here.

[0055] In this embodiment, as Figure 5 As shown, the wireless charging station 100 also includes a position sensor 51 and a position indication structure 52. The position sensor 51 is connected to the wireless transmitter 2, and the position indication structure 52 is connected to the protection plate 3. The position indication structure 52 and the position sensor 51 are configured such that when the position sensor 51 detects the position indication structure 52, the distance between the protection plate 3 and the wireless transmitter 2 is within the signal matching distance of the wireless transmitter 2. By setting the position sensor 51 and the position indication structure 52, the position of the wireless transmitter 2 is detected, thereby achieving precise docking with the unmanned forklift.

[0056] Specifically, in this embodiment, the positioning sensor 51 is a photoelectric sensor.

[0057] In this embodiment, as Figure 5 As shown, the wireless charging pile 100 also includes a limiting member 61, an elastic member 63, and a connecting shaft 62 extending along the docking direction. The connecting shaft 62 is movably connected to the wireless transmitter 2 via a connecting member. Specifically, the connecting member is connected to the wireless transmitter 2 and has a through hole through which the connecting shaft 62 passes. One end of the connecting shaft 62 is connected to the protective plate 3, and the limiting member 61 is located at the other end of the connecting shaft 62. The limiting member 61 restricts the degree of freedom of movement of the connecting shaft 62 relative to the wireless transmitter 2 along the docking direction. The elastic member 63 is compressed between the protective plate 3 and the wireless transmitter 2. When the protection plate 3 is not in contact with the unmanned forklift, the protection plate 3 can move synchronously with the wireless transmitter 2. When the protection plate 3 comes into contact with the unmanned forklift, under the power of the drive mechanism 4 and the pressure of the unmanned forklift, the protection plate 3 moves relative to the wireless transmitter 2, and the elastic member 63 is further compressed. When the charging is completed, the drive mechanism 4 drives the wireless transmitter 2 to retract, and the elastic member 63 is gradually released until the limit member 61 comes into contact with the wireless transmitter 2. Then the protection plate 3 retracts together with the wireless transmitter 2.

[0058] Specifically, such as Figures 3-8As shown, the wireless charging pile 100 includes a pile body 1 and a bracket 7. The bracket 7 is fixed inside the pile body 1. The wireless transmitter 2 is movably connected to the bracket 7 through a guide shaft 8. The bracket 7 and the guide shaft 8 provide guidance for the movement of the wireless transmitter 2, thereby improving the stability of the wireless transmitter 2 and the protection plate 3 during movement.

[0059] In this embodiment, the wireless charging pile 100 also includes a enclosure structure 9, which surrounds the outer periphery of the protective plate 3. The enclosure structure 9 has a first end and a second end along the docking direction. The first end is connected to the pile body 1, and the second end is connected to the protective plate 3. The enclosure structure 9 is extendable and retractable along the docking direction. By setting the enclosure structure 9, dust and foreign objects can be prevented from entering the charging pile.

[0060] This embodiment also provides an unmanned charging system, which includes an unmanned forklift (not shown in the figure) and the wireless charging pile 100 as described above. The unmanned forklift has a wireless receiver that can be matched with the wireless transmitter 2.

[0061] The automated forklift also includes a wired charging port, which is located near the wireless receiver. By equipping the automated forklift with a wired charging port, it can be charged via wired connection when the wireless charging function fails, thus improving the reliability of the automated forklift.

[0062] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A wireless charging station for providing power to an unmanned forklift, comprising a station body and a wireless transmitter mounted on the station body, characterized in that, The wireless charging station also includes a protective plate, which is disposed on the side of the wireless transmitter used to dock with the unmanned forklift and protrudes towards the unmanned forklift relative to the wireless transmitter. The protective plate is used to abut against the unmanned forklift. The protective plate has a hollow structure, which is used to provide clearance space for the charging induction of the wireless transmitter. Along the docking direction between the wireless transmitter and the unmanned forklift, the maximum distance between the protective plate abutting against the surface of the unmanned forklift and the wireless transmitter is within the charging induction distance of the wireless transmitter.

2. The wireless charging station as described in claim 1, characterized in that, Along the docking direction, the wireless transmitter is connected to the protective plate, and the protective plate and the wireless transmitter can move synchronously relative to the pile body.

3. The wireless charging station as described in claim 2, characterized in that, The wireless charging station includes a drive mechanism connected to the wireless transmitter, which is used to drive the protection board and the wireless transmitter to move.

4. The wireless charging station as described in claim 2, characterized in that, Along the docking direction, the wireless transmitter is movable relative to the protective plate.

5. The wireless charging station as described in claim 4, characterized in that, The wireless charging station also includes a positioning sensor and a positioning indicator structure. The positioning sensor is connected to the wireless transmitter, and the positioning indicator structure is connected to the protection board. The positioning indicator structure and the positioning sensor are configured such that when the positioning sensor detects the positioning indicator structure, the distance between the protection board and the wireless transmitter is within the signal matching distance of the wireless transmitter.

6. The wireless charging station as described in claim 5, characterized in that, The positioning sensor is a photoelectric sensor.

7. The wireless charging station as described in claim 4, characterized in that, The wireless charging pile also includes a limiting member, an elastic member, and a connecting shaft extending along the docking direction. The connecting shaft is movably connected to the wireless transmitter. One end of the connecting shaft is connected to the protective plate. The limiting member is disposed at the other end of the connecting shaft. The limiting member is used to restrict the degree of freedom of the connecting shaft to move relative to the wireless transmitter along the docking direction. The elastic member is compressed between the protective plate and the wireless transmitter.

8. The wireless charging station as described in claim 2, characterized in that, The wireless charging pile also includes a enclosure structure, which surrounds the outer periphery of the protective plate. The enclosure structure has a first end and a second end along the docking direction. The first end is connected to the pile body, and the second end is connected to the protective plate. The enclosure structure is capable of extending and retracting along the docking direction.

9. An unmanned charging system, characterized in that, It includes an unmanned forklift and a wireless charging station as described in any one of claims 1-8, wherein the unmanned forklift has a wireless receiver that can be paired with the wireless transmitter.

10. The unmanned charging system as described in claim 9, characterized in that, The unmanned forklift also includes a wired charging interface, which is located near the wireless receiver.

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