Crown block charging system

Abstract

The utility model discloses a crown block charging system. The crown block charging system comprises a track, a crown block and a charging assembly. The crown block is positioned on the track, is in sliding connection with the track and comprises a first joint; the charging assembly comprises a charging shell, a telescopic mechanism and a second connector electrically connected with an external power source, the charging shell is located on the track and fixedly connected with the track, the telescopic mechanism is located in the charging shell and at least partially fixedly connected with the charging shell, and the telescopic mechanism is further connected with the second connector. The second connector can have a charging position and a containing position, and when the second connector is located at the charging position, the crown block moves along the track so that the first connector and the second connector can be electrically connected. Through the arrangement, the cleanliness of the crown block charging system and the stability of the crown block during charging can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of material handling, and in particular to an overhead crane charging system. Background Art

[0002] In the manufacturing process of semiconductor wafers, an overhead crane is needed to transport wafers back and forth between different production processes. Overhead cranes usually use electricity as a power source for transportation. Therefore, during the production process, the overhead crane needs to be charged in time so that the overhead crane has enough power to work normally.

[0003] As for the charging form of the overhead crane, the existing technology usually adopts full-contact charging, semi-contact charging, wireless power supply or automatic power replacement. Full-contact charging is to draw electricity through the contact between the busbar and the pantograph, but during use, dust will be generated due to friction, resulting in wafer pollution, and the cleanliness is low. Semi-contact charging is to cover the running track of the overhead crane with charging copper bars, and charge the overhead crane with the contact points set on the overhead crane, but during operation, the copper bars may oxidize and fall off, resulting in wafer pollution, and the oxidation and shedding of the copper bars will also cause poor contact at the contact points, thereby reducing the stability of the overhead crane charging. Wireless power supply uses magnetic field coupling to convert and transmit electrical energy and magnetic energy, but in actual use, wireless power supply is also difficult to maintain, and it is also easy to cause magnetic field instability, resulting in reduced stability of overhead crane charging. Automatic battery replacement is achieved by storing multiple batteries in a battery replacement station. However, the risk of storing multiple batteries is high, so the maintenance cost of the battery replacement station is high. At the same time, the battery replacement process requires frequent plugging and unplugging of the battery plug rod, which can easily cause poor contact between the plug rod and the battery, reducing the stability of overhead crane charging. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the purpose of the present application is to provide an overhead travelling crane charging system, which can improve charging cleanliness and charging stability.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] An overhead crane charging system, the overhead crane charging system comprising a track, an overhead crane and a charging assembly; the overhead crane is located on the track and is slidably connected to the track, the overhead crane comprising a first connector for charging the overhead crane; the charging assembly comprises a charging housing, a telescopic mechanism and a second connector electrically connected to an external power supply, the charging housing is located on the track and is fixedly connected to the track, the telescopic mechanism is located within the charging housing and is at least partially fixedly connected to the charging housing, the telescopic mechanism is further connected to the second connector such that the second connector can have a charging position with at least a portion thereof located outside the charging housing and a storage position located within the charging housing, when the second connector is in the charging position, the overhead crane moves along the track such that the first connector and the second connector are electrically connected.

[0007] Further, the telescopic mechanism comprises a mechanism body fixedly connected to the charging housing and a movable end having a degree of freedom of movement relative to the mechanism body, the second connector is fixedly connected to the movable end, the charging housing is provided with a charging opening, and under the drive of the movable end, the second connector at least partially penetrates through the charging opening and at least partially is located outside the charging housing.

[0008] Further, the charging assembly further comprises a control valve connected to an external gas supply device, the control valve is at least partially located within the charging housing and is connected to the telescopic mechanism.

[0009] Further, the first connector comprises an input electrode, the second connector comprises an output electrode, when the second connector is in the charging position, the overhead crane moves along the track such that the input electrode and the output electrode are in contact; the input electrode has a first surface capable of contacting the output electrode, the output electrode has a second surface capable of contacting the first surface, and the area of the first surface is larger than the area of the second surface.

[0010] Further, the second connector comprises a connector housing, a guide post and an elastic member, the connector housing is provided with a first groove, the opening of the first groove faces away from the telescopic mechanism, at least a portion of the bottom of the first groove is recessed to form a second groove, one end of the guide post is located within the second groove, the other end of the guide post is at least partially located within the first groove and is slidably connected to the output electrode, the elastic member is sleeved on one end of the guide post located within the first groove, and both ends of the elastic member are respectively abutted against the bottom of the first groove and the output electrode.

[0011] Further, the first connector comprises a first position detection member, the second connector comprises a second position detection member capable of cooperating with the first position detection member, when the input electrode and the output electrode are in contact, the first position detection member and the second position detection member are in contact.

[0012] Further, the overhead crane further includes a battery mechanism electrically connected to the first connector, a control mechanism electrically connected to the battery mechanism, and a scanning mechanism electrically connected to the control mechanism. The scanning mechanism is also electrically connected to the battery mechanism. A position encoding is provided on the track, and the scanning mechanism is arranged facing the position encoding; the first position detection component is electrically connected to the battery mechanism.

[0013] Further, the overhead crane further includes an overhead crane body and a driving mechanism; the battery mechanism and the control mechanism are located inside the overhead crane body; the driving mechanism is used to drive the overhead crane to move along the track, the driving mechanism is connected to the overhead crane body, the driving mechanism is electrically connected to the battery mechanism, and the scanning mechanism is located on the driving mechanism; the track forms a moving cavity, and the driving mechanism is at least partially located inside the moving cavity and is slidably connected to the moving cavity, and the position encoding is located on the inner wall of the moving cavity.

[0014] Further, the overhead crane further includes a wireless communication module located inside the overhead crane body. The wireless communication module is electrically connected to the control mechanism and is also electrically connected to the battery mechanism.

[0015] Further, the charging assembly further includes a power adapter located inside the charging housing. The power adapter is electrically connected to the second connector and an external power supply respectively.

[0016] In this application, the charging of the overhead crane is achieved by the contact of the first connector and the second connector. During the contact process of the first connector and the second connector, the first connector and the second connector will not be worn, thus avoiding the generation of dust by the first connector and the second connector, and further avoiding dust pollution to the wafer, which is beneficial to improving the cleanliness of the overhead crane charging system. At the same time, since the first connector and the second connector will not be worn, the connection stability of the first connector and the second connector can be improved, and further the charging stability of the overhead crane charging system to the overhead crane can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the overhead crane charging system of this application;

[0018] Figure 2 is a schematic diagram of the overall structure of another perspective of the overhead crane charging system of this application

[0019] Figure 3 is a schematic diagram of the structure of the charging assembly of the overhead crane charging system of this application;

[0020] Figure 4 is a schematic diagram of the docking state of the first connector and the second connector of the overhead crane charging system of this application;

[0021] Figure 5 is a schematic diagram of the structure of the overhead crane of the overhead crane charging system of this application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the specific embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application.

[0023] It should be noted that the terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be the ordinary meanings understood by those of ordinary skill in the field to which this application belongs. The "first", "second" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "one" do not indicate a quantity limitation, but indicate that there is at least one. "Multiple" or "several" means at least two. Unless otherwise specified, the similar terms such as "front part", "rear part", "lower part" and / or "upper part" are only for convenience of description and are not limited to a position or a spatial orientation. The terms such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms of "a", "the" and "said" used in the specification and appended claims of this application are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0024] As Figure 1 、 Figure 2 and Figure 3 shown, a crane charging system 100 includes a track 11, a crane 12 and a charging assembly 13. The crane 12 is used for transporting wafers in wafer production. Further, the crane 12 is located on the track 11 and is slidably connected to the track 11, so as to limit and guide the movement of the crane 12 through the track 11, so that the crane 12 can accurately move to each production process. Among them, the crane 12 includes a first connector 121 for charging the crane 12. Through the cooperation of the first connector 121 and the charging assembly 13, the charging function of the crane 12 can be realized.

[0025] Specifically, the charging assembly 13 includes a charging housing 131, a telescopic mechanism 132, and a second connector 133. The charging housing 131 is located on the track 11 and fixedly connected to the track 11. In some embodiments, the charging housing 131 is fixedly connected to the track 11 by screws, thereby improving the connection stability between the charging housing 131 and the track 11. Further, the telescopic mechanism 132 is located inside the charging housing 131 and at least partially fixedly connected to the charging housing 131. At the same time, the telescopic mechanism 132 is also connected to the second connector 133. By the telescopic movement of the telescopic mechanism 132, the second connector 133 can have a charging position where at least part of it is outside the charging housing 131 and a storage position inside the charging housing 131. Wherein, the second connector 133 is electrically connected to an external power source, so that electrical energy can be provided to the second connector 133 by the external power source. And, after the overhead crane 12 moves along the track 11 to the charging position, when the second connector 133 extends to the charging position, the first connector 121 and the second connector 133 can be electrically connected, so that the external power source can charge the overhead crane 12 through the second connector 133 and the first connector 121, thereby realizing automatic charging of the overhead crane 12. During the connection and charging process of the first connector 121 and the second connector 133, the first connector 121 and the second connector 133 will not be worn, so as to avoid the problem of generating dust, so that the overhead crane charging system 100 will not contaminate the wafer, thereby improving the cleanliness of the overhead crane charging system 100 during charging. At the same time, since the first connector 121 and the second connector 133 will not be worn during the connection and use process, the connection stability between the first connector 121 and the second connector 133 can be improved, thereby improving the charging stability of the overhead crane charging system 100 to the overhead crane 12. In addition, by controlling the telescopic mechanism 132 to switch the second connector 133 between the extended state and the retracted state, so as to realize the switching of the second connector 133 between the charging position and the storage position, the connection and disconnection between the charging assembly 13 and the overhead crane 12 can be realized, thereby simplifying the structure of the overhead crane charging system 100, reducing costs, and also being beneficial to the subsequent maintenance and repair of the overhead crane charging system 100.

[0026] In the present application, the charging position refers to the position where the second connector 133 is located when it is electrically connected to the first connector 121. The storage position refers to the position where the second connector 133 is located when it is separated from the first connector 121 and is inside the charging housing 131. The charging position refers to the position where the overhead crane 12 is located when it can be connected to the charging assembly 13 for charging.

[0027] Such as Figure 2 And Figure 3As shown, as an implementation manner, the telescopic mechanism 132 includes a mechanism body 1321 and a movable end 1322. The mechanism body 1321 is fixedly connected to the charging housing 131, and the movable end 1322 has a degree of freedom of movement relative to the mechanism body 1321. Among them, the second joint 133 is fixedly connected to the movable end 1322, so that the movable end 1322 can drive the second joint 133 to move. It can be understood that by driving the second joint 133 to move through the movable end 1322, the second joint 133 can reciprocate between the charging position and the storage position. Through the above settings, the telescopic mechanism 132 can control the second joint 133 to reciprocate between the charging position and the storage position, so as to control the connection and disconnection between the second joint 133 and the first joint 121, and further control the charging and disconnection of the charging assembly 13 to the overhead crane 12.

[0028] Further, the charging housing 131 is provided with a charging opening (not shown in the figure). Driven by the movable end 1322, the second joint 133 at least partially penetrates through the charging opening and at least partially extends outside the charging housing 131. It can be understood that through the setting of the charging opening, it is beneficial for the second joint 133 to pass through the charging housing 131 and extend the second joint 133 out of the charging housing 131, so as to avoid interference of the charging housing 131 with the movement of the second joint 133 and facilitate the movement of the second joint 133 between the charging position and the storage position.

[0029] In some embodiments, the telescopic mechanism 132 can be a double-acting cylinder, and the movable end 1322 can be the movable part of the double-acting cylinder. The double-acting cylinder can drive the movable part to move. At the same time, the movable part of the double-acting cylinder is fixedly connected to the second joint 133, so that the double-acting cylinder can drive the second joint 133 to move through the movable part, so that the double-acting cylinder can drive the second joint 133 to move between the charging position and the storage position.

[0030] Optionally, the charging assembly 13 further includes a control valve 134 connected to an external gas supply device. The control valve 134 is at least partially located inside the charging housing 131 and is connected to the telescopic mechanism 132. In some embodiments, the control valve 134 is connected to the telescopic mechanism 132, so that the operating state of the telescopic mechanism 132 can be controlled through the control valve 134, so that the telescopic mechanism 132 can control the second joint 133 to move between the charging position and the storage position. Through the above settings, it is beneficial to realize the function of automatically controlling the movement of the second joint 133.

[0031] It should be noted that the control valve 134 is a control structure for controlling the operating state of the telescopic mechanism 132, and the present application does not limit the control structure for controlling the operating state of the telescopic mechanism 132.

[0032] Such as Figure 4As shown, as an implementation, the first connector 121 includes an input electrode 1211, and the second connector 133 includes an output electrode 1331. Among them, after the overhead crane 12 moves along the track 11 to the charging position, when the second connector 133 extends to the charging position, the overhead crane 12 moves along the track 11 so that the input electrode 1211 and the output electrode 1331 are in contact. It can be understood that through the contact connection between the input electrode 1211 and the output electrode 1311, the power transmission between the second connector 133 and the first connector 121 can be realized, and then the charging function of the charging component 13 for the overhead crane 12 can be realized.

[0033] Specifically, when the charging component 13 charges the overhead crane 12, the telescopic mechanism 132 is used to control the moving end 1322 to move in the direction close to the overhead crane 12, so that the moving end 1322 drives the second connector 133 to move to the charging position. The second connector 133 is connected to the first connector 121 on the overhead crane 12, so that the output electrode 1331 on the second connector 133 is connected to the input electrode 1211 on the first connector 121. The external power supply delivers current through the output electrode 1331 of the second connector 133, and the overhead crane 12 receives the current through the input electrode 1211 of the first connector 121, thereby realizing the charging of the overhead crane 12 by the charging component 13. When the charging component 13 cuts off the power supply to the overhead crane 12, the telescopic mechanism 132 is used to control the moving end 1322 to move in the direction away from the overhead crane 12, so that the moving end 1322 drives the second connector 133 to move to the storage position, so that the second connector 133 is separated from the first connector 121, and further the output electrode 1331 on the second connector 133 and the input electrode 1211 on the first connector 121 are separated, so that the output electrode 1331 no longer delivers current to the input electrode 1211, and then the power-off of the charging component 13 for the overhead crane 12 is realized.

[0034] Furthermore, the input electrode 1211 has a first surface 1211a capable of contacting the output electrode 1331, and the output electrode 1331 has a second surface 1331a capable of contacting the first surface 1211a. Among them, the area of the first surface 1211a is larger than the area of the second surface 1331a, thereby improving the connection fault tolerance between the input electrode 1211 and the output electrode 1331.

[0035] Specifically, when the overhead crane 12 has a parking error at the charging location, it will cause the output electrode 1331 to be misaligned with the input electrode 1211. At this time, the output electrode 1331 and the input electrode 1211 will be misaligned when docking. However, since the area of the first surface 1211a is larger than the area of the second surface 1331a, when the output electrode 1331 and the input electrode 1211 are misaligned, the output electrode 1331 of the second connector 133 can still contact the input electrode 1211 of the first connector 121 for charging, so that the output electrode 1331 and the input electrode 1211 can normally conduct current transmission, thereby improving the fault tolerance of the charging assembly 13 for charging the overhead crane 12, and further improving the charging stability of the charging assembly 13 for the overhead crane 12, and avoiding the situation where the overhead crane 12 cannot be charged.

[0036] As Figure 4 shown, as an implementation manner, the second connector 133 includes a connector housing 1332, a guide post 1333, and an elastic member 1334. Specifically, the connector housing 1332 is provided with a first groove 1332a, and the opening of the first groove 1332a faces away from the telescopic mechanism 132. Among them, the output electrode 1331 is slidably installed in the first groove 1332a, and at least a part of the output electrode 1331 extends out of the opening of the first groove 1332a, so that the output electrode 1331 can be connected to the input electrode 1211, thereby realizing the power transmission between the output electrode 1331 and the input electrode 1211. At the same time, the first groove 1332a can play a role in limiting and guiding the movement of the output electrode 1331, thereby improving the movement stability of the output electrode 1331 in the first groove 1332a.

[0037] Optionally, at least a part of the bottom of the first groove 1332a is recessed to form a second groove 1332b. One end of the guide post 1333 is located in the second groove 1332b, and the other end of the guide post 1333 is at least partially located in the first groove 1332a and is slidably connected to the output electrode 1331. In some embodiments, the output electrode 1331 is provided with a guide hole at one end located in the first groove 1332a, and one end of the guide post 1333 extends into the guide hole and is slidably connected to the guide hole. It can be understood that when the output electrode 1331 slides in the first groove 1332a, the arrangement of the guide post 1333 can play a role in guiding the movement of the output electrode 1331, thereby avoiding the situation where the output electrode 1331 deviates, and further improving the connection stability between the output electrode 1331 and the input electrode 1211.

[0038] Further, the elastic member 1334 is sleeved on one end of the guide post 1333 located in the first groove body 1332a, and both ends of the elastic member 1334 are respectively in contact with the bottom of the first groove body 1332a and the output electrode 1331. The elastic member 1334 can provide a displacement space for the output electrode 1331 to move in a direction away from the overhead crane 12. In the present application, when the elastic member 1334 is in a natural state, the distance that the telescopic mechanism 132 drives the output electrode 1331 on the second joint 133 to move from the storage position to the charging position is greater than the distance between the output electrode 1331 on the second joint 133 and the input electrode 1211 on the first joint 121 in the storage position. When the telescopic mechanism 132 controls the output electrode 1331 on the second joint 133 to be connected to the input electrode 1211 of the first joint 121, since the moving distance of the output electrode 1331 is greater than the distance between the output electrode 1331 and the input electrode 1211, the output electrode 1331 will retreat after contacting the input electrode 1211. At this time, the elastic member 1334 can provide a space for the retreat of the output electrode 1331, thereby avoiding the situation where the output electrode 1331 and the input electrode 1211 cannot retreat after contact, resulting in damage to the output electrode 1331 and the input electrode 1211. At the same time, when the second joint 133 is in the charging position, the elastic force generated after the elastic member 1334 is compressed and deformed can exert a force on the output electrode 1331 toward the overhead crane 12, so that the output electrode 1331 can be closely attached to the input electrode 1211 when receiving the force of the elastic member 1334, thereby avoiding the situation where the output electrode 1331 and the input electrode 1211 are separated. By setting like this, the connection stability between the output electrode 1331 and the input electrode 1211 can be improved, thereby improving the stability of current transmission between the output electrode 1331 and the input electrode 1211, and further improving the charging stability of the charging assembly 13 to the overhead crane 12.

[0039] In some embodiments, the elastic member 1334 is a spring. Through the deformation of the spring, a space can be provided for the retreat of the output electrode 1331. At the same time, after the spring is deformed, it can exert a force on the output electrode 1331 toward the overhead crane 12, so that the output electrode 1331 is tightly connected to the input electrode 1211, thereby improving the stability of power transmission between the output electrode 1331 and the input electrode 1211.

[0040] It should be noted that the spring is a structural form of the elastic member 1334, and the present application does not limit the structural form of the elastic member 1334.

[0041] Such as Figure 4 and Figure 5As shown, as an implementation manner, the first connector 121 includes a first position detector 1212, and the second connector 133 includes a second position detector 1335 that can cooperate with the first position detector 1212. When the input electrode 1211 and the output electrode 1331 are in contact, the first position detector 1212 and the second position detector 1335 are in contact. Understandably, by determining whether the first position detector 1212 and the second position detector 1335 are in contact, it is possible to determine whether the input electrode 1211 and the output electrode 1331 are in contact and energized, thereby determining whether the overhead crane 12 is in a charging or non-charging state, and further improving the monitoring efficiency of whether the overhead crane 12 is in a charging or non-charging state.

[0042] Specifically, when the input electrode 1211 and the output electrode 1331 are not in contact, the first position detector 1212 and the second position detector 1335 are also not in contact. At this time, the first position detector 1212 and the second position detector 1335 can send a non-contact signal, thereby determining that the input electrode 1211 and the output electrode 1331 are not in contact, and at the same time, the overhead crane 12 is in a non-charging state. When the output electrode 1331 and the output electrode 1331 are in contact, at this time, the first position detector 1212 and the second position detector 1335 are in contact, and the first position detector 1212 and the second position detector 1335 can send a contact signal, thereby determining that the input electrode 1211 and the output electrode 1331 are in contact, and at the same time, the overhead crane 12 is in a normal charging state.

[0043] In some embodiments, the first position detector 1212 can be a proximity sensor, and the second position detector 1335 can be a sensor detection board, so that the positions of the input electrode 1211 and the output electrode 1331 can be detected by the proximity sensor and the sensor detection board. At the same time, the proximity sensor can also send a position signal to determine whether the output electrode 1331 and the output electrode 1331 are in contact, which is beneficial to determining whether the overhead crane 12 is in a charging or non-charging state.

[0044] Such as Figure 2 and Figure 5As shown, as an implementation manner, the overhead crane 12 further includes a battery mechanism 122, a control mechanism 123, and a scanning mechanism 124. Among them, the battery mechanism 122 is electrically connected to the first connector 121, so that the electric energy received by the first connector 121 from the second connector 133 can be delivered into the battery mechanism 122, thereby enabling the charging assembly 13 to charge the battery mechanism 122. In some embodiments, the battery mechanism 122 can be a lithium battery. At the same time, the control mechanism 123 is electrically connected to the battery mechanism 122, so that the control mechanism 123 can monitor the power signal of the battery mechanism 122, and the battery mechanism 122 can supply power to the control mechanism 123. In some embodiments, the control mechanism 123 is a central control chip, which can receive, process, and send various information.

[0045] Further, the scanning mechanism 124 is electrically connected to the battery mechanism 122, so that the battery mechanism 122 provides electric energy for the scanning mechanism 124, enabling the scanning mechanism 124 to work normally. At the same time, a position code 111 is provided on the track 11, and the scanning mechanism 124 is arranged facing the position code 111. It can be understood that the scanning mechanism 124 can identify the position code 111, thereby identifying the position where the overhead crane 12 is located, which is beneficial to controlling the position of the overhead crane 12 on the track 11. Furthermore, the scanning mechanism 124 is electrically connected to the control mechanism 123, so that the scanning mechanism 124 can send the information of identifying the position code 111 to the control mechanism 123, and then the control mechanism 123 can identify the position of the overhead crane 12 on the track 11.

[0046] Among them, the first position detection member 1212 is electrically connected to the battery mechanism 122, so that the battery mechanism 122 provides electric energy for the first position detection member 1212, enabling the first position detection member 1212 to have sufficient electric energy to work normally. Optionally, the first position detection member 1212 is electrically connected to the control mechanism 123, so that the position information of the first position detection member 1212 regarding the output electrode 1331 and the input electrode 1211 can be transmitted to the control mechanism 123, and then the control mechanism 123 can identify whether the overhead crane 12 is in a charging state.

[0047] In some embodiments, the position code 111 can be a two-dimensional code strip, and the scanning mechanism 124 can be a two-dimensional code identifier. The two-dimensional code identifier is used to identify the two-dimensional code strip on the track 11, thereby determining the position where the overhead crane 12 is located on the track 11.

[0048] Furthermore, the overhead crane 12 further includes an overhead crane body 125 and a driving mechanism 126. The battery mechanism 122 and the control mechanism 123 are located in the overhead crane body 125, which is conducive to the protection of the battery mechanism 122 and the control mechanism 123 by the overhead crane 12. Among them, the driving mechanism 126 is used to drive the overhead crane 12 to move along the track 11, and the driving mechanism 126 is connected to the overhead crane body 125. At the same time, the driving mechanism 126 is electrically connected to the battery mechanism 122, so that the battery mechanism 122 provides power to the driving mechanism 126, so that the driving mechanism 126 can operate normally. In addition, the scanning mechanism 124 is located on the driving mechanism 126, so that the movement consistency of the scanning mechanism 124 and the driving mechanism 126 can be improved, thereby improving the accuracy of the scanning mechanism 124 in identifying the position of the overhead crane 12.

[0049] The track 11 is surrounded by a movable cavity 112 , the driving mechanism 126 is at least partially located in the movable cavity 112 and is slidably connected to the movable cavity 112 , and the position code 111 is located on the inner wall of the movable cavity 112 .

[0050] Furthermore, the driving mechanism 126 is electrically connected to the control mechanism 123, so that the control mechanism 123 can control the start and stop of the driving mechanism 126, and further the control mechanism 123 can control the start and stop of the overhead travelling vehicle 12. At the same time, the control mechanism 123 can control the position of the overhead travelling vehicle 12 on the track 11 by driving the start and stop of the overhead travelling vehicle 12 and cooperating with the position information recognized by the scanning mechanism 124.

[0051] In some embodiments, the driving mechanism 126 includes a bracket 1261, a motor 1262 and a roller 1263. The bracket 1261 is fixedly mounted inside the crane body 125 by screws. The bracket 1261 is fixedly mounted with a motor mounting plate by screws. The motor 1262 is fixedly mounted on the motor mounting plate by screws, so that the motor 1262 is fixedly connected to the bracket 1261. The roller 1263 is movably mounted in the moving cavity 112. At the same time, the motor 1262 is connected to the roller 1263 by transmission, so that the roller 1263 is driven by the motor 1262 to rotate, so that the roller 1263 rolls in the moving cavity 112, and then the crane 12 is driven by the roller 1263 to move on the track 11. At the same time, the scanning mechanism 124 is fixedly mounted on the bracket 1261. The motor 1262 is electrically connected to the battery mechanism 122, so that the battery mechanism 122 provides electric energy to the motor 1262, so that the motor 1262 can drive the roller 1263 to rotate in the moving cavity 112, thereby driving the overhead crane 12 to move on the track 11. In addition, the motor 1262 is electrically connected to the control mechanism 123, so that the control mechanism 123 controls the motor 1262 to start and stop, thereby achieving the purpose of moving the overhead crane 12 and transporting materials.

[0052] likeFigure 5 As shown, as an implementation manner, the overhead crane 12 further includes a wireless communication module 127 located inside the overhead crane body 125. The wireless communication module 127 is electrically connected to the control mechanism 123. In some embodiments, the wireless communication module 127 is a Wi-Fi communication chip, and the Wi-Fi communication chip can communicatively connect the control mechanism 123 with an external device, so that the external device can remotely control the functions of the overhead crane 12. The wireless communication module 127 is also electrically connected to the battery mechanism 122, so as to supply electrical energy to the wireless communication module 127 through the battery mechanism 122, which is beneficial for the wireless communication module 127 to have sufficient electrical energy for signal transmission.

[0053] As Figure 3 As shown, as an implementation manner, the charging assembly 13 further includes a power adapter 135. The power adapter 135 is located inside the charging housing 131, and the power adapter 135 is respectively electrically connected to the second connector 133 and an external power source. In some embodiments, the external power source is a socket that has been connected to the power supply. The power adapter 135 connects the socket to the second connector 133 to supply power to the second connector 133.

[0054] In the present application, the working principle of the overhead crane charging system 100 is as follows:

[0055] First, when the control mechanism 123 receives the information that the battery mechanism 122 has insufficient power, the control mechanism 123 controls the scanning mechanism 124 to identify the position coding 111 on the track 11, and the control mechanism 123 drives the driving mechanism 126 to drive the overhead crane 12 to move to the charging position and stop according to the position information of the overhead crane 12 identified by the scanning mechanism 124.

[0056] Then, gas is conveyed through the control valve 134 to start the telescopic mechanism 132, so that the telescopic mechanism 132 drives the second connector 133 to move to the charging position, so that the second connector 133 is connected to the first connector 121 on the overhead crane 12, and further the output electrode 1331 on the second connector 133 is connected to the input electrode 1211 on the first connector 121. At the same time, the second position detection member 1335 on the second connector 133 is connected to the first position detection member 1212 on the first connector 121, and the second position detection member 1335 and the first position detection member 1212 can send the connected signal to the control mechanism 123. The power adapter 135 is connected to the second connector 133, so that electrical energy can flow from the output electrode 1331 on the second connector 133 into the input electrode 1211 on the first connector 121, and then be conveyed to the battery mechanism 122 through the input electrode 1211, thereby realizing the charging of the battery mechanism 122 by the charging assembly 13.

[0057] When the control mechanism 123 receives a signal that the battery mechanism 122 is fully charged, the control valve 134 controls the movement of the telescopic mechanism 132 by controlling the gas delivery, and the telescopic mechanism 132 drives the second connector 133 to retract, so that the second connector 133 moves to the storage position. At this time, the second connector 133 is separated from the first connector 121, so that the output electrode 1331 and the input electrode 1211 are separated, so that the external power supply no longer charges the overhead crane 12. At the same time, the second position detection member 1335 is separated from the first position detection member 1212. The second position detection member 1335 and the first position detection member 1212 send an unconnected signal to the control mechanism 123. The control mechanism 123 controls the drive mechanism 126 to start, so that the overhead crane 12 restarts to work.

[0058] During the charging process of the overhead crane charging system 100, the input electrode 1211 on the first connector 121 and the output electrode 1331 on the second connector 133 are connected to achieve the purpose of charging the battery mechanism 122 of the overhead crane 12 by an external power source. During the charging process, the input electrode 1211 and the output electrode 1331 will not be worn or produce dust, and the metal copper strip will not oxidize and fall off, so that the wafer will not be polluted, thereby improving the charging cleanliness of the overhead crane 12, which is beneficial for the overhead crane 12 to carry the wafer. At the same time, the charging and power-off of the overhead crane 12 are realized by controlling the movement of the second connector 133 through the telescopic mechanism 132, which can simplify the charging structure and facilitate the maintenance of the overhead crane charging system 100 in the later stage. Secondly, when charging the overhead crane 12, there is no need to repeatedly plug and unplug the battery plug rod, which will not cause the problem of poor contact, thereby improving the charging stability of the overhead crane 12.

[0059] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A overhead crane charging system, characterized in that: The overhead travelling crane charging system comprises: track; An overhead travelling vehicle, the overhead travelling vehicle being located on the track and slidably connected to the track, the overhead travelling vehicle comprising a first connector for charging the overhead travelling vehicle; A charging assembly, the charging assembly comprising a charging shell, a telescopic mechanism and a second connector electrically connected to an external power source, the charging shell is located on the track and fixedly connected to the track, the telescopic mechanism is located in the charging shell and at least partially fixedly connected to the charging shell, the telescopic mechanism is also connected to the second connector, so that the second connector can have a charging position at least partially located outside the charging shell and a storage position located inside the charging shell, when the second connector is in the charging position, the overhead travelling crane moves along the track to electrically connect the first connector and the second connector.

2. The overhead travelling vehicle charging system according to claim 1, characterized in that: The telescopic mechanism includes a mechanism body fixedly connected to the charging shell and a movable end having freedom of movement relative to the mechanism body, the second connector is fixedly connected to the movable end, the charging shell is provided with a charging opening, and under the drive of the movable end, the second connector is at least partially inserted into the charging opening and at least partially located outside the charging shell.

3. The overhead travelling crane charging system according to claim 2, characterized in that: The charging assembly also includes a control valve connected to an external gas delivery device, wherein the control valve is at least partially located in the charging housing and connected to the telescopic mechanism.

4. The overhead travelling crane charging system according to claim 1, characterized in that: The first connector includes an input electrode, the second connector includes an output electrode, and when the second connector is in the charging position, the overhead travelling vehicle moves along the track so that the input electrode contacts the output electrode; The input electrode has a first surface capable of contacting the output electrode, and the output electrode has a second surface capable of contacting the first surface, wherein an area of ​​the first surface is larger than an area of ​​the second surface.

5. The overhead travelling vehicle charging system according to claim 4, characterized in that: The second joint includes a joint shell, a guide column and an elastic member. The joint shell is provided with a first slot body. The opening of the first slot body is arranged away from the telescopic mechanism. The slot bottom of the first slot body is at least partially sunken to form a second slot body. One end of the guide column is located in the second slot body. The other end of the guide column is at least partially located in the first slot body and is slidably connected to the output electrode. The elastic member is sleeved on one end of the guide column located in the first slot body. The two ends of the elastic member are respectively in contact with the slot bottom of the first slot body and the output electrode.

6. The overhead travelling vehicle charging system according to claim 4, characterized in that: The first connector includes a first position detection member, and the second connector includes a second position detection member capable of cooperating with the first position detection member. When the input electrode and the output electrode are in contact, the first position detection member and the second position detection member are in contact.

7. The overhead travelling vehicle charging system according to claim 6, characterized in that: The overhead travelling crane further comprises a battery mechanism electrically connected to the first joint, a control mechanism electrically connected to the battery mechanism, and a scanning mechanism electrically connected to the control mechanism, wherein the scanning mechanism is also electrically connected to the battery mechanism, a position code is arranged on the track, and the scanning mechanism is arranged toward the position code; The first position detection member is electrically connected to the battery mechanism.

8. The overhead travelling crane charging system according to claim 7, characterized in that: The overhead travelling crane further comprises: A crane body, wherein the battery mechanism and the control mechanism are located in the crane body; A driving mechanism, used for driving the overhead travelling vehicle to move along the track, the driving mechanism being connected to the overhead travelling vehicle body, the driving mechanism being electrically connected to the battery mechanism, and the scanning mechanism being located on the driving mechanism; The track is surrounded by a moving cavity, the driving mechanism is at least partially located in the moving cavity and is slidably connected to the moving cavity, and the position code is located on the inner wall of the moving cavity.

9. The overhead travelling crane charging system according to claim 8, characterized in that: The overhead travelling vehicle further comprises a wireless communication module located in the overhead travelling vehicle body, wherein the wireless communication module is electrically connected to the control mechanism, and the wireless communication module is also electrically connected to the battery mechanism.

10. The overhead travelling vehicle charging system according to claim 3, characterized in that: The charging assembly also includes a power adapter, which is located in the charging housing and is electrically connected to the second connector and an external power source respectively.

Images