Battery cell, battery device, and electric device

Abstract

A battery transfer device and a control method therefor. The battery transfer device comprises a weighing mechanism (10), a clamping mechanism (20), and a lifting mechanism (30), wherein the clamping mechanism (20) is movably connected to the weighing mechanism (10) and has a first position and a second position relative to the weighing mechanism (10); the lifting mechanism (30) is connected to the weighing mechanism (10), and selectively supports the clamping mechanism (20) to keep the clamping mechanism (20) in the first position, and is adapted to drive the clamping mechanism (20) and the weighing mechanism (10) to move synchronously. The battery transfer device can achieve clamping, transporting, and weighing of batteries. Moreover, during transport, the probability of the weighing mechanism being impacted is lower, resulting in higher working stability and reliability, and improving the weighing precision.

Description

Battery cell, battery device, and electric device

[0001] Cross-reference to related applications

[0002] The present application claims priority to the Chinese patent application No. 202411131555.X, filed on August 16, 2024, entitled “Battery transfer device and control method thereof”. TECHNICAL FIELD

[0003] The present application relates to the technical field of battery tooling, in particular to a battery transfer device and a control method thereof. BACKGROUND

[0004] Secondary batteries are increasingly widely used in life and industry. For example, new energy vehicles equipped with secondary batteries have been widely used. In addition, secondary batteries are also increasingly used in the field of energy storage, etc. In new energy vehicles equipped with secondary batteries, the batteries can be used to provide power entirely or partially. In the field of energy storage, the batteries can be installed in an energy storage box or directly installed at the user side.

[0005] In the processing of secondary batteries, the batteries need to be subjected to formation, liquid injection and other processes. Between the processes, the batteries need to be transferred by clamping tooling. In addition, the batteries need to be weighed during formation and liquid injection. In the related art, the transfer and weighing are difficult to be synchronized, and the weighing accuracy is difficult to be ensured. SUMMARY

[0006] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a battery transfer device and a control method thereof. The battery transfer device can simultaneously achieve clamping, carrying and weighing of the battery, improve production efficiency, and the weighing mechanism and the clamping mechanism are movably connected. During carrying, the weighing mechanism is less likely to be impacted, and the working stability and reliability are higher, and the weighing accuracy can be improved.

[0007] The present application provides a battery transfer device, which comprises a weighing mechanism, a clamping mechanism and a lifting mechanism. The weighing mechanism is adapted to weigh the battery. The clamping mechanism is adapted to clamp the battery. The clamping mechanism is movably connected with the weighing mechanism and has a first position and a second position relative to the weighing mechanism. The lifting mechanism is connected with the weighing mechanism and selectively supports the clamping mechanism to make the clamping mechanism be in the first position and adapted to drive the clamping mechanism and the weighing mechanism to move synchronously. In the first position, the clamping mechanism is movably connected with the weighing mechanism. In the second position, the clamping mechanism is gravitationally connected with the weighing mechanism to realize weighing of the battery.

[0008] According to the battery transfer device, the clamping mechanism is movably arranged on the weighing mechanism, the lifting mechanism is adapted to maintain the clamping mechanism in the first position or switch to the second position, the battery transfer and processing can be performed in the first position, and the weighing of the battery can be performed in the second position, the impact of the clamping mechanism and the environment on the weighing mechanism can be reduced in the battery processing and transfer process, the service life of the weighing mechanism is prolonged, the weighing stability and reliability are improved, and the weighing precision is improved.

[0009] According to some embodiments of the present application, the battery transfer device further comprises a floating mechanism, the floating mechanism comprises a first plate, a second plate and an active connection group, the first plate is connected with the weighing mechanism, the second plate is connected with the clamping mechanism, the weighing mechanism and the clamping mechanism are arranged correspondingly, and the active connection group is located between the first plate and the second plate and connects the first plate and the second plate movably.

[0010] According to some embodiments of the present application, the active connection group comprises a limiting lock pin and a limiting lock groove, the limiting lock pin is formed on the first plate or the second plate, the limiting lock groove is correspondingly formed on the second plate or the first plate, the limiting lock pin is movably arranged in the limiting lock groove, the limiting lock groove has a first groove segment and a second groove segment, the slot size of the first groove segment is larger than that of the second groove segment, and when the limiting lock pin is in the first groove segment, the first plate and the second plate are movably connected.

[0011] According to some embodiments of the present application, the battery transfer device further comprises a rack and a moving mechanism, the moving mechanism is connected with the lifting mechanism, and the moving mechanism is movably arranged on the rack.

[0012] According to some embodiments of the present application, the rack has a clamping station, the clamping station is provided with a first lifting mechanism and a first tray, the battery is adapted to be placed on the first tray, the first lifting mechanism is adapted to lift the first tray, and the clamping mechanism is adapted to clamp the battery in the first tray.

[0013] According to some embodiments of the present application, the rack further has a detection station, the detection station is provided with a second lifting mechanism and a second tray, the detection station is adapted to place detection weights in the second tray, and the second lifting mechanism is adapted to lift the second tray.

[0014] According to some embodiments of the present application, the detection weights are multiple, and the weights of the multiple detection weights are sequentially increased, each clamping mechanism is adapted to clamp one detection weight, and the multiple clamping mechanisms clamp detection weights with different weights respectively.

[0015] According to some embodiments of the present application, the lifting mechanism comprises a lifting cylinder and a supporting plate, the supporting plate is selectively connected with the clamping mechanism, the cylinder body of the lifting cylinder is connected with the moving mechanism, and the piston rod of the lifting cylinder is connected with the supporting plate.

[0016] According to some embodiments of the present application, the moving mechanism comprises a moving track extending in a first direction and a slider movably arranged on the moving track, and the slider is connected with the lifting mechanism and the weighing mechanism, and the plurality of weighing mechanisms are arranged in sequence in a second direction having an included angle with the first direction.

[0017] According to some embodiments of the present application, the clamping mechanism comprises a clamping plate, a clamping cylinder and clamping claws, the clamping claws are at least two and connected with the clamping cylinder, and are adapted to clamp or release the battery under the driving of the clamping cylinder.

[0018] According to some embodiments of the present application, the battery transfer device further comprises a gas source supply mechanism, the clamping plate is used for fixing the clamping cylinder, and the clamping plate is provided with a clamping gas path connected with the clamping cylinder, the gas source supply mechanism is selectively communicated with the clamping gas path, and the clamping gas path is configured as a self-locking gas path.

[0019] The present application provides a control method for battery transfer, and the control method comprises a battery weighing method, and the battery weighing method comprises:

[0020] The moving mechanism drives the clamping mechanism to move to a clamping station;

[0021] The first tray is lifted to a clamping position, the gas source supply mechanism supplies gas to the clamping mechanism, and the clamping mechanism clamps the battery;

[0022] The lifting mechanism and the gas source supply mechanism are disconnected from the clamping mechanism, the clamping mechanism is switched to a second position, and the first tray is reset;

[0023] The weighing mechanism weighs the battery.

[0024] According to some embodiments of the present application, the battery weighing method further comprises:

[0025] The lifting mechanism and the gas source supply mechanism are reset to be connected with the clamping mechanism, so that the clamping mechanism is switched to a first position, the gas source supply mechanism supplies gas, and the first tray is lifted to a clamping position;

[0026] The moving mechanism drives the clamping mechanism to move in a second direction, and the weighing process is circulated.

[0027] According to some embodiments of the present application, the control method further comprises a weighing mechanism calibration method, and the weighing mechanism calibration method comprises:

[0028] The moving mechanism drives the clamping mechanism to move to a station;

[0029] The second tray is lifted to a clamping position, the gas source supply mechanism supplies gas, and the clamping mechanism clamps the detection weight;

[0030] The lifting mechanism is separated from the clamping mechanism, and the clamping mechanism is switched to the second position, the air source supply mechanism is separated from the clamping mechanism, and the second tray is reset;

[0031] The weighing mechanism detects the weight of the test weight;

[0032] The weighing value of the weighing mechanism is compared with the calibration value of the test weight, and if the difference exceeds the preset difference range, a calibration warning is issued.

[0033] Additional aspects and advantages of the present application will be in part apparent and in part pointed out below in the description of embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0034] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the description of embodiments, including the following:

[0035] FIG. 1 is a schematic view of a battery transfer device according to an embodiment of the present application from one angle;

[0036] FIG. 2 is a schematic view of a battery transfer device according to an embodiment of the present application from another angle;

[0037] FIG. 3 is a schematic view of a clamping mechanism of a battery transfer device according to an embodiment of the present application in a clamping station;

[0038] FIG. 4 is another schematic view of a clamping mechanism of a battery transfer device according to an embodiment of the present application in a clamping station;

[0039] FIG. 5 is another schematic view of a clamping mechanism of a battery transfer device according to an embodiment of the present application in a detection station;

[0040] FIG. 6 is a schematic view of a clamping mechanism according to an embodiment of the present application in a first position;

[0041] FIG. 7 is a schematic view of a limiting lock pin and a limiting lock slot according to an embodiment of the present application;

[0042] FIG. 8 is a schematic view of a clamping mechanism according to an embodiment of the present application in a second position;

[0043] FIG. 9 is another schematic view of a limiting lock pin and a limiting lock slot according to an embodiment of the present application;

[0044] FIG. 10 is a schematic view of a weighing mechanism, a floating mechanism, and a clamping mechanism according to an embodiment of the present application;

[0045] FIG. 11 is a schematic view of a weighing mechanism, a floating mechanism, and a clamping mechanism according to an embodiment of the present application;

[0046] FIG. 12 is a weighing flowchart of the weighing clamping mechanism according to an embodiment of the present application;

[0047] FIG. 13 is a calibration flowchart of the weighing clamping mechanism according to an embodiment of the present application. DETAILED DESCRIPTION

[0048] Embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below are examples for explaining the present application and should not be construed as limiting the present application.

[0049] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be construed as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application.

[0050] It should be noted that the terms "first", "second" are only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. Further, in the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0051] At present, batteries are increasingly widely used in life and industry. Batteries are not only used in energy storage power supply systems such as hydroelectric, thermal, wind and solar power stations, but also widely used in electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, and in many fields such as aerospace. With the continuous expansion of the application field of power batteries, the market demand is also increasing.

[0052] In the embodiments of the present application, the battery can be a battery monomer.

[0053] The battery monomer can be a secondary battery, which refers to a battery monomer that can be activated by charging after discharging.

[0054] The battery monomer can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead-acid battery, etc. The embodiments of the present application are not limited thereto.

[0055] The battery cell includes a bare cell (also referred to as an electrode assembly). The bare cell includes a positive electrode sheet, a negative electrode sheet, and a separator. During charging and discharging of the battery cell, active ions (e.g., lithium ions) are inserted into and extracted from the positive electrode sheet and the negative electrode sheet. The separator is disposed between the positive electrode sheet and the negative electrode sheet, and can prevent short circuiting of the positive electrode and the negative electrode while allowing the active ions to pass through.

[0056] In some embodiments, the battery cell can include a housing. The housing is used to encapsulate the bare cell and other components such as electrolyte. The housing can be a steel shell, an aluminum shell, a plastic shell (e.g., polypropylene), a composite metal shell (e.g., a copper-aluminum composite shell), or an aluminum-plastic film, etc.

[0057] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes, and the prismatic battery cell includes a square battery cell, a blade battery cell, a multi-prismatic battery cell (e.g., a hexagonal battery cell), etc., without specific limitation in the present application.

[0058] In some embodiments, the bare cell is of a jelly-roll structure. The positive electrode sheet, the negative electrode sheet, and the separator are wound into the jelly-roll structure.

[0059] In some embodiments, the bare cell is of a stacked structure.

[0060] The applicant of the present application notes that generally, a battery is placed in a battery clamp, and the battery is transferred by the battery clamp, such as: one or more batteries are integrally carried to a processing position, which can be a liquid injection processing position, a formation processing position, etc., and at the corresponding processing position, corresponding operations are performed to complete the processing of the battery. However, at some processing positions, the battery needs to be weighed before and after the completion of the processing of the battery at the current processing position, such as: weighing before and after liquid injection. If the weighing mechanism is separately provided, the battery clamp needs to carry the battery to the weighing mechanism twice before and after the liquid injection is completed, which is complicated and reduces production efficiency. Although the weighing mechanism can be integrated on the battery clamp, the weighing mechanism can continuously weigh the battery, which can simplify the operation steps and improve the production efficiency. However, the impact and vibration generated during the carrying of the battery by the clamp are directly transmitted to the weighing mechanism, which causes the weighing mechanism to be easily affected by external impact, reduces the service life, reduces the weighing stability, and also affects the weighing accuracy.

[0061] Based on this, the application provides a weighing clamping device, the clamping mechanism can be switched between the first position and the second position, the first position can realize clamping of the battery, and the clamping mechanism is movably connected with the weighing device at the first position, so as to simplify the operation steps, improve the production efficiency, reduce the probability of impact directly transmitted to the weighing mechanism, improve the weighing stability and reliability, and improve the weighing precision.

[0062] It can be understood that the battery transfer device in the embodiments of the application is not limited to be used in the liquid injection processing position, and the liquid injection processing position is not limited to the primary liquid injection processing position and the secondary liquid injection processing position after formation.

[0063] The battery transfer device 100 and the control method according to the embodiments of the application are described below with reference to FIGS. 1-13.

[0064] As shown in FIGS. 1 and 2, the application provides a battery transfer device 100, which comprises a weighing mechanism 10, a clamping mechanism 20, and a lifting mechanism 30, so as to realize weighing of the battery 200 by the weighing mechanism 10, clamping of the battery 200 by the clamping mechanism 20, and synchronous movement of the weighing mechanism 10, the clamping mechanism 20, and the battery 200 by the lifting mechanism 30.

[0065] As shown in FIGS. 10 and 11, the weighing mechanism 10 is adapted to weigh the battery 200, the clamping mechanism 20 is adapted to clamp the battery 200, and the clamping mechanism 20 is movably arranged on the weighing mechanism 10 to be switched between the first position and the second position, and the lifting mechanism 30 is selectively connected with the clamping mechanism 20 to make the clamping mechanism 20 be in the first position and adapted to drive the clamping mechanism 20 and the weighing mechanism 10 to move synchronously; wherein in the first position, the clamping mechanism 20 is movably connected with the weighing mechanism 10, and in the second position, the clamping mechanism 20 is gravitationally connected with the weighing mechanism 10 to realize weighing of the battery 200.

[0066] Specifically, the lifting mechanism 30 is connected with the weighing mechanism 10, and the clamping mechanism 20 is movably connected with the weighing mechanism 10 (for example, the clamping mechanism 20 is directly or indirectly slidably connected with the weighing mechanism 10, directly or indirectly rotatably connected with the weighing mechanism 10, etc., so that the weighing mechanism 20 can be switched between the first position and the second position relative to the clamping mechanism 20), so that the lifting mechanism 30 can drive the clamping mechanism 20 and the weighing mechanism 10 to move synchronously, thereby realizing the transfer of the clamped battery 200. The clamping mechanism 20 is movably arranged on the clamping mechanism 20, which can realize the switching between the first position and the second position. The lifting mechanism 30 is also adapted to be connected with the clamping mechanism 20 and make the clamping mechanism 20 in the first position. When the first position, the weighing mechanism 10 is movably connected with the clamping mechanism 20, that is, after the clamping action is completed, the weighing mechanism 10 is in a movable connection state with the clamping mechanism 20, and the weighing mechanism 10 and the clamping mechanism 20 can move relative to each other, so that the weighing mechanism 10 and the lifting mechanism 30 are in a "separated state", thereby reducing the impact on the weighing mechanism 10 during the clamping of the battery 200, the transfer of the battery 200 and the processing of the battery 200, prolonging the service life of the weighing mechanism 10, and improving the working stability and reliability of the weighing mechanism 10. When the lifting mechanism 30 is disengaged from the clamping mechanism 20, the clamping mechanism 20 is switched to the second position. When the second position, the clamping mechanism 20 and the weighing mechanism 10 can be gravitationally connected, that is, the clamping mechanism 20 can pull the weighing mechanism 10 below the weighing mechanism 10, and the weighing mechanism 10 can weigh the clamping mechanism 20 and the battery 200 to improve the weighing accuracy.

[0067] It can be understood that the first direction involved in the embodiments of the present application can be defined as the length direction, the front-back direction; the second direction can be defined as the width direction, the left-right direction, and the third direction can be defined as the height direction, the up-down direction.

[0068] Exemplarily, the weighing mechanism 10 and the clamping mechanism 20 are arranged in sequence in the up-down direction, and the clamping mechanism 20 is configured to move in the up-down direction to switch between the first position and the second position. When the first position, the weighing mechanism 10 is movably connected with the clamping mechanism 20, that is, the weighing mechanism 10 and the clamping mechanism 20 can move relative to each other in the left-right and front-back directions, and there is no rigid direct connection between the two. When the second position, the clamping mechanism 20 is arranged away from the weighing mechanism 10 compared with the first position, and when the second position, the lifting mechanism 30 does not support the clamping mechanism 20 below the clamping mechanism 20, so that the clamping mechanism 20 pulls the weighing mechanism 10 below the weighing mechanism 10 under the gravity of the clamping mechanism 20 and the battery 200, so that the weighing mechanism 10 can weigh the battery 200.

[0069] In other words, referring to FIGS. 6 and 8, as shown in FIG. 6, the lifting mechanism 30 supports the clamping mechanism 20 below the clamping mechanism 20, as shown in FIG. 8, the lifting mechanism 30 is separated from the clamping mechanism 20, and the clamping mechanism 20 is switched to the second position under the action of gravity, that is, the lifting mechanism 30 selectively supports the clamping mechanism 20, which means that the lifting mechanism 30 can lift the clamping mechanism 20 and overcome the gravity of the clamping mechanism 20 and the battery 200 to keep it in the first position, so that the vibration and impact generated during the transfer and processing of the battery 200 can act on the weighing mechanism 10 with a lower probability, and when the lifting mechanism 30 is separated from the clamping mechanism 20, the weighing of the battery 200 can be directly performed.

[0070] That is, the clamping mechanism 20 can move to the second position relative to the weighing mechanism 10 under the action of the gravity of the clamping mechanism 20 and the battery 200 clamped in the clamping mechanism 20, and the clamping mechanism 20 pulls the weighing mechanism 10 under the action of its own gravity, so that the weighing can be realized, and when in the second position, the connection state between the clamping mechanism 20 and the weighing mechanism 10 is defined as gravity connection.

[0071] According to the battery transfer device 100 of the embodiment of the present application, the clamping mechanism 20 is movably arranged on the weighing mechanism 10, the lifting mechanism 30 is adapted to maintain the clamping mechanism 20 in the first position or switch it to the second position, and in the first position, the transfer and processing of the battery 200 can be performed, and in the second position, the weighing of the battery 200 can be performed, which can reduce the impact of the clamping mechanism 20 and environmental factors on the weighing mechanism 10 during the processing and transfer of the battery 200, prolong the service life of the weighing mechanism 10, improve the weighing stability and reliability, and improve the weighing accuracy.

[0072] In combination with FIGS. 6-11, according to some embodiments of the present application, the battery transfer device 100 further comprises a floating mechanism 40, the floating mechanism 40 comprises a first plate 41, a second plate 42 and an active connection group 43, the first plate 41 is connected with the weighing mechanism 10, the second plate 42 is connected with the clamping mechanism 20, the weighing mechanism 10 and the clamping mechanism 20 are correspondingly arranged, and the active connection group 43 is located between the first plate 41 and the second plate 42 and actively connects the first plate 41 and the second plate 42.

[0073] Among them, the first plate 41 and the second plate 42 are connected with the weighing mechanism 10 and the clamping mechanism 20 respectively, and the first plate 41 and the second plate 42 are actively connected through the active connection group 43, so that the weighing mechanism 10 and the clamping mechanism 20 can be actively connected to realize the movable connection between the clamping mechanism 20 and the weighing mechanism 10, which can simplify the structure of the battery transfer device 100 and reduce the cost.

[0074] It should be noted that the weighing mechanism 10 is arranged in correspondence with the clamping mechanism 20, and the weighing mechanism 10 can be multiple and correspond to the clamping mechanism 20 one by one, or the weighing mechanism 10 can have multiple weighing sensors, and the multiple weighing sensors correspond to the clamping mechanism 20 one by one, so that the battery transfer device 100 can realize synchronous clamping of multiple batteries 200, and synchronous weighing of multiple batteries 200 can be realized, which can improve the weighing efficiency and clamping efficiency

[0075] Exemplarily, the weighing mechanism 10 can include a weighing plate body, and the weighing plate body is provided with multiple sensor mounting positions corresponding to multiple weighing sensors, and each sensor mounting position is provided with a weighing sensor, which can simplify the arrangement difficulty of the weighing sensor, reduce the cost, and reduce the number of weighing sensor fixing structures, and improve the reliability of the weighing mechanism 10.

[0076] Referring to FIGS. 7 and 9, according to some embodiments of the present application, the movable connection group 43 includes a limiting lock pin 431 and a limiting lock groove 432, the limiting lock pin 431 is formed on the first plate 41 or the second plate 42, the limiting lock groove 432 is formed on the second plate 42 or the first plate 41 in correspondence, the limiting lock pin 431 is movably arranged in the limiting lock groove 432, the limiting lock groove 432 has a first groove section 4321 and a second groove section 4322, the size of the slot of the first groove section 4321 is greater than the size of the slot of the second groove section 4322, so that when the limiting lock pin 431 is in the first groove section 4321, the first plate 41 and the second plate 42 are movably connected.

[0077] In some embodiments, the limit lock pin 431 is formed on the first plate 41, and the limit lock slot 432 is formed on the second plate 42. In other embodiments, the limit lock pin 431 is formed on the second plate 42, and the limit lock slot 432 is formed on the first plate 41. The limit lock slot 432 has a first slot section 4321 and a second slot section 4322 arranged in the third direction in sequence, the first slot section 4321 is located below, and the second slot section 4322 is located above. When the clamping mechanism 20 is in the first position, the limit lock pin 431 is in the first slot section 4321, and the size of the slot of the first slot section 4321 is larger than the size of the slot of the second slot section 4322, so that when the limit lock pin 431 is in the first slot section 4321, the first plate 41 and the second plate 42 are in a movable connection state, and the weighing mechanism 10 can move relative to the clamping mechanism 20. At this time, the two are in a "separated state", so as to reduce the vibration and impact transmitted to the weighing mechanism 10, improve the working stability and reliability of the weighing mechanism 10, and prolong the service life. When in the second position, the limit lock pin 431 is in the second slot section 4322, not only the weighing function can be realized, but also the movement of the first plate 41 and the second plate 42 can be limited by the cooperation of the limit lock pin 431 and the second slot section 4322, so as to reduce the shaking of the clamping mechanism 20 and the battery 200, and improve the weighing accuracy.

[0078] It should be pointed out that the limit lock pin 431 can be a cylindrical pin or a prism pin, and the second slot section 4322 is a cylindrical slot or a prism slot, and the outer diameters of the two are consistent. The first slot section 4321 only needs to be constructed to be larger than the first slot section 4321, and the specific shape is not limited in the application.

[0079] As shown in FIGS. 1-5, according to some embodiments of the application, the battery transfer device 100 further comprises a rack 50 and a moving mechanism 60, the moving mechanism 60 is connected with the lifting mechanism 30, and the moving mechanism 60 is movably arranged on the rack 50.

[0080] Specifically, the moving mechanism 60 is connected with the rack 50, and the moving mechanism 60 can drive the lifting mechanism 30 to move, so as to realize the synchronous movement of the lifting mechanism 30, the weighing mechanism 10 and the clamping mechanism 20, and then the transfer of the clamped battery 200 can be realized, the transfer difficulty is reduced, and the position of the battery 200 can be adjusted, such as: in the liquid injection process, the battery 200 and the liquid injection equipment are more easily aligned, and before the battery 200 is clamped, the position of the clamping mechanism 20 can be adjusted by the moving mechanism 60, so as to facilitate the clamping of the battery 200 by the clamping mechanism 20, and improve the use convenience of the battery transfer device 100.

[0081] It should be pointed out that the moving mechanism 60 can drive the clamping mechanism 20 to move in the first direction, and the clamping mechanism 20 is a plurality of clamping mechanisms 20, and the plurality of clamping mechanisms 20 can be arranged in the second direction in sequence.

[0082] As shown in FIG. 3 and FIG. 4, according to some embodiments of the present application, the gantry 50 has a clamping station 51, the clamping station 51 is provided with a first lifting mechanism 53 and a first tray 54, the battery 200 is suitable to be placed in the first tray 54, and the first lifting mechanism 53 is suitable to lift the first tray 54, and the clamping mechanism 20 is suitable to clamp the battery 200 in the first tray 54.

[0083] Specifically, the first tray 54 is suitable to place the battery 200, and the battery 200 can be arranged in an array in the first tray 54, the moving mechanism 60 can drive the clamping mechanism 20 to move in the first direction to clamp the battery 200 in columns in the first direction, each column of clamped batteries 200 can be processed first, weighed after processing, or weighed first, processed again, and weighed again, etc., and the clamping station 51 can be provided with a transmission belt, a roller assembly, etc. as a transmission structure, so that the first tray 54 can quickly move to the clamping station 51, and the clamping station 51 can be provided with a clamping frame separately, the first lifting mechanism 53 is arranged on the clamping frame, so as to drive the first tray 54 to switch between the lifting position and the reset position through the first lifting mechanism 53, when the battery 200 needs to be clamped, the first lifting mechanism 53 drives the first tray 54 to move to the clamping position, so as to facilitate the clamping of the battery 200, and after the processing is completed, the first lifting mechanism 53 can also drive the first tray 54 to move to the clamping position, so as to facilitate the placement of the battery 200 after the processing or weighing is completed into the first tray 54, improve the processing convenience and processing efficiency, and also reduce the probability of damage to the battery 200 during the taking and placing of the battery 200.

[0084] As shown in FIG. 3, FIG. 4 and FIG. 5, according to some embodiments of the present application, the gantry 50 also has a detection station 52, the detection station 52 is provided with a second lifting mechanism 55 and a second tray 56, the second tray 56 is suitable to place a detection weight 57, and the second lifting mechanism 55 is suitable to lift the second tray 56.

[0085] Specifically, the detection station 52 and the clamping station 51 can be sequentially arranged in the first direction, the moving mechanism 60 can drive the clamping mechanism 20 to move between the detection station 52 and the clamping station 51, and the second tray 56 is suitable for placing the detection weights 57, the detection weights 57 can be arranged in a column in the second tray 56, a detection frame can be arranged on the detection station 52, and a second lifting mechanism 55 is arranged on the detection frame to drive the second tray 56 to switch between a lifting position and a reset position. When the detection weight 57 needs to be clamped, the second lifting mechanism 55 drives the second tray 56 to move to the clamping position, so as to facilitate the clamping of the detection weight 57, and after the detection and calibration are completed, the second lifting mechanism 55 can also drive the second tray 56 to move to the clamping position, so as to facilitate the placement of the used detection weight 57 back into the second tray 56, improve the detection convenience and detection efficiency, and reduce the probability of damage to the detection weight 57 during the taking and placing of the detection weight 57.

[0086] According to some embodiments of the present application, the detection weights 57 are multiple, and the weights of the multiple detection weights 57 are sequentially increased, each clamping mechanism 20 is suitable for clamping one detection weight 57, and the multiple clamping mechanisms 20 clamp detection weights 57 of different weights respectively.

[0087] Exemplarily, the multiple detection weights 57 can be arranged in a 1kg, 1.2kg, 1.4kg, 1.6kg ladder, and multiple weighing sensors can read the detection weights of the corresponding detection weights 57 under the detection station 52. When the difference between the detection weight and the calibration weight of one of them is greater than a preset difference range, it can be determined that the weighing sensor has failed and needs to be calibrated, which can reduce the calibration difficulty and reduce the labor cost.

[0088] It can be understood that by arranging the stepped weights, the detection weight indications of the multiple weighing sensors corresponding to the stepped weights are also generally stepped indications, such as 1kg, 1.21kg, 1.39kg, 1.6kg, etc. When the multiple detection weight indications appear in a disordered arrangement, it can be determined that one or more weighing sensors have a wiring error, which can further reduce the calibration and maintenance difficulty.

[0089] As shown in FIGS. 6 and 8, according to some embodiments of the present application, the lifting mechanism 30 includes a lifting cylinder 31 and a lifting plate 32, the lifting plate 32 is selectively connected with the clamping mechanism 20, the cylinder body of the lifting cylinder 31 is connected with the moving mechanism 60, and the piston rod of the lifting cylinder 31 is connected with the lifting plate 32.

[0090] In some embodiments, the cylinder body of the lifting cylinder 31 is connected with the moving mechanism 60, a plurality of connecting plates can be arranged on the cylinder body, and the weighing mechanism 10 is connected with the lifting mechanism 30 through the connecting plates, so that the weighing mechanism 10 and the lifting mechanism 30 can move synchronously, and the piston rod of the lifting cylinder 31 is connected with the supporting plate 32, the supporting plate 32 is located below the weighing mechanism 10 and is adapted to move upward under the driving of the piston rod to support the clamping mechanism 20, or move away from the clamping mechanism 20 to switch the clamping mechanism 20 to the second position.

[0091] It should be noted that the movement stroke of the piston rod needs to be greater than the movement stroke of the clamping mechanism 20 when switching between the first position and the second position.

[0092] In other embodiments, the supporting plate 32 can include upper plates, middle plates and lower plates arranged opposite in the third direction, the upper plates, the middle plates and the lower plates can be multiple, the upper plates are connected with the moving mechanism 60 and the weighing mechanism 10, the lifting cylinders 31 can be arranged between the upper plates and the middle plates, guide columns can be arranged between the upper plates and the lower plates to realize movement guidance, the middle plates and the lower plates move synchronously relative to the upper plates, and the clamping mechanism 20 can be supported by the lower plates, which can improve the structural stability and reliability of the lifting mechanism 30.

[0093] Among them, the supporting plate 32 can be provided with a bolt or a slot structure, and the clamping mechanism 20 can be provided with a slot or a bolt structure, and the bolt and the slot are inserted and matched to improve the supporting stability and reliability of the clamping mechanism 20 by the lifting mechanism 30.

[0094] It can be understood that the supporting plate 32 of the lifting mechanism 30 can move in the height direction to support or release the clamping mechanism 20, and the feasible structure is an optional lifting mechanism 30 of the present application, which is not limited in the present application.

[0095] As shown in FIGS. 1 and 2, according to some embodiments of the present application, the moving mechanism 60 includes a moving track 61 and a sliding block 62, the moving track 61 extends in the first direction, the sliding block 62 is movably arranged in the moving track 61, and the sliding block 62 is connected with the lifting mechanism 30 and the weighing mechanism 10, and a plurality of weighing mechanisms 10 are arranged in sequence in the second direction having an included angle with the first direction.

[0096] Specifically, the moving tracks 61 can be one or more, the corresponding sliders 62 can be one or more, the sliders 62 are slidably arranged on the moving tracks 61, and the sliders 62 are used to be connected with the lifting mechanism 30, so that the lifting mechanism 30 is movably arranged on the moving tracks 61, and the sliders 62 can be connected with a power source, for example, one of the moving tracks 61 and one of the sliders 62 are configured as a screw nut transmission group, so that the slider 62 is driven by the motor to realize the relative position adjustment in the first direction on the moving track 61, and the relative position adjustment of the lifting mechanism 30, the clamping mechanism 20 and the weighing mechanism 10 is realized.

[0097] It can be understood that the moving mechanism 60 drives the lifting mechanism 30 to adjust the position in the first direction, which can be to adjust the relative position in the clamping station 51 to facilitate the taking and placing of the battery 200, or to switch between the clamping station 51 and the detection station 52 to realize the switching between the clamping operation of the battery 200 and the calibration of the weighing mechanism 10, which can improve the use convenience of the weighing and clamping device.

[0098] As shown in FIGS. 10 and 11, according to some embodiments of the present application, the clamping mechanism 20 comprises a clamping plate 21, a clamping cylinder 22 and clamping jaws 23, the clamping jaws 23 are at least two and are connected with the clamping cylinder 22, and are suitable for clamping or releasing the battery 200 under the driving of the clamping cylinder 22.

[0099] Specifically, the clamping plate 21 is used to be connected with the floating mechanism 40, that is, the clamping plate 21 is connected with the second plate 42, and the clamping cylinder 22 can drive the clamping jaws 23 to move, so that the plurality of clamping jaws 23 move towards or away from each other to adjust the size of the clamping space, realize the clamping and release of the battery 200 of different sizes and the clamping and release of the detection weight 57 of different sizes, and improve the clamping stability and reliability of the battery 200 and the detection weight 57 of the clamping mechanism 20.

[0100] Exemplarily, the clamping jaws 23 can be two, the two clamping jaws 23 are arranged on a driving plate, the driving plate can be provided with a sliding groove, the clamping jaws 23 are arranged in the sliding groove as slidable wedge blocks, and the cylinder rod of the clamping cylinder 22 is configured as a wedge shape and is suitable for pushing the wedge blocks, so that the movement of the cylinder rod in the third direction is switched to the movement of the two clamping jaws 23 in the second direction towards or away from each other, which reduces the difficulty of adjusting the size of the clamping space.

[0101] As shown in FIGS. 4 and 5, according to some embodiments of the present application, the battery transfer device 100 further comprises a gas source supply mechanism 70, the clamping plate 21 is used to fix the clamping cylinder 22, and the clamping plate 21 is provided with a clamping gas path connected with the clamping cylinder 22, the gas source supply mechanism 70 is selectively communicated with the clamping gas path, and the clamping gas path is configured as a self-locking gas path.

[0102] Specifically, the air source supply mechanism 70 can be provided with a driving unit, and the air source supply mechanism 70 can be arranged on the lifting mechanism 30, so that the air source supply mechanism 70 can be driven by the driving unit to move towards or away from the clamping plate 21. The clamping plate 21 can be provided with a clamping air path connected with the clamping cylinder 22. The position of the cylinder rod of the clamping cylinder 22 can be adjusted by the communication between the air source supply mechanism 70 and the clamping air path. After adjustment, the air source supply mechanism 70 is disengaged from the clamping air path, but the clamping air path is formed as a self-locking air path, so that the clamping jaw 23 can be self-locked at the current position.

[0103] In this way, on the one hand, the air source supply mechanism 70 can be disengaged from the clamping mechanism 20 during weighing, so as to avoid the influence of vibration and impact of the air source supply mechanism 70 on the weighing of the weighing mechanism 10. On the other hand, during the weighing process, the weighing mechanism 10 can weigh the total weight of the clamping mechanism 20 and the battery 200, or the total weight of the clamping mechanism 20 and the detection weight 57, so as to reduce the influence of environmental factors on the weighing structure and improve the weighing precision.

[0104] The clamping air path has a gas supply path and a gas cut-off path connected with the clamping cylinder 22. The gas supply path and the gas cut-off path are provided with one-way valves. The one-way valves can be triggered by the air source supply mechanism 70 to realize self-locking when the air source supply mechanism 70 is disengaged from the clamping plate 21. When the air source supply mechanism 70 cooperates with the clamping plate 21, the one-way valves can realize gas supply or exhaust to clamp or release the battery 200.

[0105] As shown in FIG. 12, in a second aspect, the application provides a control method of the battery transfer device 100. The control method comprises a battery 200 weighing method, and the battery 200 weighing method comprises:

[0106] The moving mechanism 60 drives the clamping mechanism 20 to move to the clamping station 51. The clamping station 51 can be a placement station of the battery 200 after a certain process is completed, such as a placement station of the battery 200 after a liquid injection is completed, a placement station of the battery 200 after formation is completed, etc. The clamping station 51 can also be a specific station for placing the battery 200 and waiting for the battery transfer device 100 to transfer or weigh the battery 200.

[0107] The first tray 54 is lifted to the clamping position, and the air source supply mechanism 70 supplies air to the clamping mechanism 20 to clamp the battery 200.

[0108] The lifting mechanism 30, the air source supply mechanism 70 and the clamping mechanism 20 are disengaged, and the clamping mechanism 20 is switched to the second position. The first tray 54 is reset.

[0109] The weighing mechanism 10 weighs the battery 200.

[0110] According to the control method, the weighing mechanism 10 can bear less impact during the transportation and processing of the battery 200, the working stability of the weighing and clamping tool can be improved, and the service life thereof can be prolonged.

[0111] According to some embodiments of the present application, the battery 200 weighing method further comprises:

[0112] The lifting mechanism 30 and the air supply mechanism 70 are reset to be connected to the clamping mechanism 20, so that the clamping mechanism 20 is switched to the first position, the air supply mechanism 70 supplies air, and the first tray 54 is lifted to the clamping position;

[0113] The moving mechanism 60 drives the clamping mechanism 20 to move in the second direction and circulates the weighing process.

[0114] Therefore, the battery 200 weighing efficiency can be improved.

[0115] According to some embodiments of the present application, the control method further comprises a weighing mechanism 10 calibration method, and the weighing mechanism 10 calibration method comprises:

[0116] The moving mechanism 60 drives the clamping mechanism 20 to move to the working position;

[0117] The second tray 56 is lifted to the clamping position, the air supply mechanism 70 supplies air, and the clamping mechanism 20 clamps the detection weight 57;

[0118] The lifting mechanism 30 is disconnected from the clamping mechanism 20, and the clamping mechanism 20 is switched to the second position, the air supply mechanism 70 is disconnected from the clamping mechanism 20, and the second tray 56 is reset;

[0119] The weighing mechanism 10 weighs the detection weight 57;

[0120] The weighing value of the weighing mechanism 10 is compared with the calibration value of the detection weight 57, and if the difference exceeds a preset difference range, a calibration warning is issued.

[0121] Next, referring to FIGS. 1-11, the specific structure of the battery transportation device 100 according to the embodiments of the present application is described in detail.

[0122] The weighing and clamping device comprises a weighing mechanism 10, a clamping mechanism 20, a lifting mechanism 30, a moving mechanism 60, a floating mechanism 40, a rack 50, and an air supply mechanism 70.

[0123] The weighing mechanism 10 can comprise a sensor fixing structure (such as a fixing plate) and a plurality of weighing sensors arranged on the sensor fixing structure, and the number of weighing sensors is consistent with the number of clamping mechanisms 20.

[0124] The clamping mechanism 20 comprises a clamping plate 21, a clamping cylinder 22 and a clamping jaw 23, the clamping plate 21 is connected with the floating mechanism 40, the clamping cylinder 22 is used to drive the clamping jaw 23, the clamping plate 21 is formed with a clamping air path, and the clamping air path is connected with the air source supply mechanism 70 and the clamping cylinder 22.

[0125] The lifting mechanism 30 comprises a lifting cylinder 31 and a lifting plate 32, the lifting plate 32 is connected with the clamping plate 21 of the clamping mechanism 20 and is used to support the clamping mechanism 20 in the first position or release the clamping mechanism 20 so that it can move to the second position under the action of gravity, and the lifting cylinder 31 can be fixed with the moving mechanism 60 and the weighing mechanism 10 through a cylinder body or by arranging some connecting plate body structures.

[0126] The moving mechanism 60 can comprise moving guide rails and a sliding block 62, the sliding block 62 is connected with the lifting mechanism 30, at least one set of moving guide rails and the sliding block 62 are configured as a transmission assembly (such as a lead screw nut or a gear and a rack), and power transmission is realized through a driving motor.

[0127] The floating mechanism 40 can comprise a first plate 41 and a second plate 42, the first plate 41 and the second plate 42 are respectively connected with the weighing mechanism 10 and the clamping mechanism 20, a limit lock pin 431 and a limit lock groove 432 are arranged between the first plate 41 and the second plate 42, the limit lock pin 431 and the limit lock groove 432 can realize the active connection of the weighing mechanism 10 and the clamping mechanism 20 in the first position and the gravity connection of the weighing mechanism 10 and the clamping mechanism 20 in the second position.

[0128] It should be pointed out that the weighing sensor can be fixed on the lifting mechanism 30 through a sensor mounting plate, a floating mounting plate is arranged below the weighing sensor, the floating mounting plate is connected with the first plate 41, and the second plate 42 is connected with the clamping plate 21.

[0129] The gantry 50 can be provided with a clamping frame and a detection frame, the clamping frame is formed with a roller structure or a conveying belt structure and is used for the transfer of the first tray 54, the first tray 54 can be provided with a battery 200, the clamping frame is provided with a second tray 56, and the second tray 56 is used to place a detection weight 57.

[0130] According to the battery transfer device 100 of the embodiment of the application, in the clamping, transfer and processing of the battery 200, the weighing mechanism 10 can be disengaged from the clamping mechanism 20, the impact of the clamping mechanism 20 and environmental factors on the weighing mechanism 10 is reduced, the service life of the weighing mechanism 10 is prolonged, the working stability and detection accuracy are improved, the clamping mechanism 20 can realize self-locking clamping, the influence of the power source and other structures on the weighing mechanism 10 is reduced, the weighing accuracy is further improved, the calibration of the weighing mechanism 10 can be realized through the detection weight 57 set by the stepped weight, automatic calibration is realized, the calibration difficulty is reduced, and when wiring errors occur between multiple weighing sensors, the calibration can be intuitively known, the detection difficulty is reduced.

[0131] Next, referring to FIGS. 12 and 13, the weighing process and the calibration process of the battery transfer device 100 of the embodiment of the application are specifically described.

[0132] As shown in FIG. 12, the specific steps of the weighing process are as follows:

[0133] Step one: the battery 200 is placed in the first tray 54 and enters the clamping station 51;

[0134] Step two: the first lifting mechanism 53 lifts the first tray 54 to the lifting position, and before the first tray 54 reaches the lifting position, the air nozzle (gas supply nozzle and gas cutoff nozzle) of the air source supply mechanism 70 is connected to the clamping plate 21 of the clamping mechanism and forms a seal;

[0135] Step three: the gas supply nozzle of the air source supply mechanism 70 supplies gas to the clamping cylinder, the clamping jaw 23 clamps the battery 200, and the first tray 54 is reset;

[0136] Step four: the air source supply mechanism 70 is disengaged from the clamping plate 21, and the clamping gas circuit and the clamping cylinder 22 are self-locked to maintain the clamping state;

[0137] Step five: the lifting cylinder 31 of the lifting mechanism 30 drives the lifting plate 32 to disengage from the clamping mechanism 20, the limiting lock pin 431 on the lifting mechanism 30 is disengaged from the clamping plate 21 (which can be synchronized with the lowering of the first tray 54), the limiting lock pin 431 enters the second groove segment 4322, and the weighing sensor starts weighing;

[0138] Step six: the limit lock pin 431 is completely out of contact with the first slot section 4321, the limit lock pin 431 enters the path end point of the second slot section 4322, the first plate 41 is connected with the second plate 42 through the limit lock pin 431, and the weighing sensor weighs the result at this time: the weight of the battery 200 + the weight of the clamping mechanism + the weight of the floating mechanism 40, wherein the weight of the clamping mechanism + the weight of the floating mechanism 40 can be obtained before clamping the battery 200, that is, the weight of the battery 200 = (the weight of the battery 200 + the weight of the clamping mechanism + the weight of the floating mechanism 40) - (the weight of the clamping mechanism + the weight of the floating mechanism 40);

[0139] Step seven: the lifting cylinder 31 drives the supporting plate 32 to reset to the supporting and clamping plate 21, the limit lock pin 431 enters the first slot section 4321 from the second slot section 4322 (the first slot section 4321 is not limited to a square, and the space is greater than the size of the limit lock pin 431, and no contact occurs), the first tray 54 moves to the jacking position, the air nozzle (gas supply nozzle and gas cutoff nozzle) of the gas source supply mechanism 70 cooperates with the gas supply plate of the clamping mechanism to form a seal, the gas cutoff nozzle of the gas source supply mechanism 70 supplies gas to the clamping cylinder, the clamping jaw 23 releases the battery 200, and the battery 200 falls into the first tray 54, and the weighing is completed;

[0140] Step eight: the first tray 54 resets, the gas source supply mechanism 70 is separated from the clamping plate 21, and the clamping jaw 23 is self-locked to keep open;

[0141] Step nine: the moving mechanism 60 drives the clamping mechanism 20 and the weighing mechanism 10 to move in the first direction to above the next column of batteries 200 to be weighed, and steps two to seven are repeated;

[0142] Step ten: after all the batteries 200 in the first tray 54 are weighed, the transmission structure on the gantry 50 works, and the first tray 54 and the batteries 200 overflow the gantry 50.

[0143] As shown in FIG. 13, the specific steps of the calibration process are as follows:

[0144] Step one: the moving mechanism 60 drives the weighing mechanism 10 and the clamping mechanism 20 to move in the first direction to above the standard weight;

[0145] Step two: the second jacking mechanism 55 drives the second tray 56 to move to the jacking position, and before the second tray reaches the jacking position, the air nozzle (gas supply nozzle and gas cutoff nozzle) of the gas source supply mechanism 70 is connected with the clamping plate 21 of the clamping mechanism and forms a seal;

[0146] Step three: the gas supply nozzle of the gas source supply mechanism 70 supplies gas to the clamping cylinder, the clamping jaw 23 clamps the detection weight 57, and the second tray 56 resets;

[0147] Step four: the air supply mechanism 70 is separated from the clamping plate 21, the clamping air path and the clamping cylinder 22 are self-locked to maintain the clamping state;

[0148] Step five: the lifting cylinder 31 of the lifting mechanism 30 drives the lifting plate 32 to be separated from the clamping mechanism 20, the pin column on the lifting plate is separated from the clamping plate 21 (which can be synchronized with the lowering of the second tray 56), the limiting lock pin 431 enters the second groove section 4322, and the weighing sensor starts to weigh;

[0149] Step six: the pin column is completely separated from the air supply plate, the limiting lock pin 431 enters the end point of the path of the second groove section 4322, the first plate 41 and the second plate 42 are connected through the limiting lock pin 431, and the weighing sensor weighs the weight of the detected weight 57 + the weight of the clamping mechanism + the weight of the floating mechanism 40 at this time, wherein the weight of the clamping mechanism + the weight of the floating mechanism 40 can be obtained before the detected weight 57 is clamped, that is, the weight of the detected weight 57 = (the weight of the detected weight 57 + the weight of the clamping mechanism + the weight of the floating mechanism 40) - (the weight of the clamping mechanism + the weight of the floating mechanism 40);

[0150] Step seven: the lifting cylinder 31 drives the lifting plate 32 to reset to support the clamping plate 21, the limiting lock pin 431 enters the first groove section 4321 from the second groove section 4322 (the first groove section 4321 is not limited to a square, and the space is greater than the size of the limiting lock pin 431, and no contact occurs), the second tray 56 moves to the jacking position, the air nozzle (the air supply nozzle and the air cut-off nozzle) of the air supply mechanism 70 is matched with the air supply plate of the clamping mechanism to form a seal, the air cut-off nozzle of the air supply mechanism 70 supplies air to the clamping cylinder, the clamping jaw 23 releases the detected weight 57, the detected weight 57 falls into the second tray 56, and the weighing is completed;

[0151] Step eight: record the weighing results of each detected weight 57, compare the detected weight of each weighing sensor with the calibrated weight of the detected weight 57 input in advance, and if the difference exceeds the preset difference range, an alarm is sent.

[0152] According to the control method, the weighing efficiency of the battery 200 can be improved, the first tray 54 is quickly and accurately weighed, the calibration of the weighing sensor can be realized, the calibration difficulty is reduced, and the weighing precision is improved.

[0153] Other structures and operations of the battery transfer device 100 according to the embodiments of the present application are known to those skilled in the art, and will not be described here.

[0154] In the description of the application, reference has been made to descriptive terms such as "one embodiment", "some embodiments", "an embodiment", "example", "specific example" or "some examples" etc. It is emphasized that each of these terms refers to a specific feature, structure, material or characteristic described in connection with a particular embodiment or example. The descriptive terms are not necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0155] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since the scope of the application is defined with respect to the appended claims.

Claims

1. A battery transfer device, wherein, The application relates to a battery weighing device, which comprises: a weighing mechanism (10) adapted to weigh a battery (200); a clamping mechanism (20) adapted to clamp the battery (200), the clamping mechanism (20) being movably connected with the weighing mechanism (10) and having a first position and a second position relative to the weighing mechanism (10); a lifting mechanism (30) connected with the weighing mechanism (10) and selectively supporting the clamping mechanism (20) so that the clamping mechanism (20) is in the first position and adapted to drive the clamping mechanism (20) and the weighing mechanism (10) to move synchronously; wherein in the first position, the clamping mechanism (20) is movably connected with the weighing mechanism (10), and in the second position, the clamping mechanism (20) is gravitationally connected with the weighing mechanism (10) to weigh the battery (200).

2. The battery transfer device of claim 1, wherein, The application further comprises: a floating mechanism (40) comprising a first plate (41), a second plate (42) and a movable connection group (43), the first plate (41) being connected with the weighing mechanism (10), the second plate (42) being connected with the clamping mechanism (20), the weighing mechanism (10) and the clamping mechanism (20) being correspondingly arranged, and the movable connection group (43) being arranged between the first plate (41) and the second plate (42) and movably connecting the first plate (41) and the second plate (42).

3. The battery transfer device of claim 2, wherein, The movable connection group (43) comprises a limiting lock pin (431) and a limiting lock groove (432), the limiting lock pin (431) being formed on the first plate (41) or the second plate (42), the limiting lock groove (432) being correspondingly formed on the second plate (42) or the first plate (41), the limiting lock pin (431) being movably arranged in the limiting lock groove (432), and the limiting lock groove (432) having a first groove section (4321) and a second groove section (4322), the size of the slot of the first groove section (4321) being larger than the size of the slot of the second groove section (4322), so that when the limiting lock pin (431) is in the first groove section (4321), the first plate (41) and the second plate (42) are movably connected.

4. The battery transfer device of any one of claims 1-3, wherein, The application further comprises: a rack (50) and a moving mechanism (60), the moving mechanism (60) being connected with the lifting mechanism (30) and movably arranged on the rack (50).

5. The battery transfer device of claim 4, wherein, The rack (50) has a clamping station (51) provided with a first jacking mechanism (53) and a first tray (54), the battery (200) being adapted to be placed on the first tray (54), the first jacking mechanism (53) being adapted to jack up the first tray (54), and the clamping mechanism (20) being adapted to clamp the battery (200) in the first tray (54).

6. The battery transfer device of claim 4 or 5, wherein, The gantry (50) further has a detection station (52) provided with a second lifting mechanism (55) and a second tray (56) adapted to place a detection weight (57) therein, and the second lifting mechanism (55) is adapted to lift the second tray (56).

7. The battery transfer device of claim 6, wherein, The detection weights (57) are multiple, and the weights of the multiple detection weights (57) are sequentially increased, each of the gripping mechanisms (20) is adapted to grip one of the detection weights (57), and the multiple gripping mechanisms (20) respectively grip the detection weights (57) with different weights.

8. The battery transfer device of any one of claims 4-7, wherein, The lifting mechanism (30) comprises a lifting cylinder (31) and a lifting plate (32), the lifting plate (32) is selectively connected with the gripping mechanism (20), a cylinder body of the lifting cylinder (31) is connected with the moving mechanism (60), and a piston rod of the lifting cylinder (31) is connected with the lifting plate (32).

9. The battery transfer device of any one of claims 4-8, wherein, The moving mechanism (60) comprises a moving track (61) and a sliding block (62), the moving track (61) extends along a first direction, the sliding block (62) is movably arranged on the moving track (61), and the sliding block (62) is connected with the lifting mechanism (30) and the weighing mechanism (10), and the multiple weighing mechanisms (10) are sequentially arranged in a second direction having an included angle with the first direction.

10. The battery transporter of any one of claims 1-3, wherein, The gripping mechanism (20) comprises a gripping plate (21), a gripping cylinder (22) and a gripping jaw (23), the gripping jaw (23) is at least two and is connected with the gripping cylinder (22), and is adapted to grip or release the battery (200) under the driving of the gripping cylinder (22).

11. The battery transfer device of claim 10, wherein, Further comprising: The air source supply mechanism (70), the gripping plate (21) is used for fixing the gripping cylinder (22), and the gripping plate (21) is provided with a gripping air path connected with the gripping cylinder (22), the air source supply mechanism (70) is selectively communicated with the gripping air path, and the gripping air path is configured as a self-locking air path.

12. A control method of a battery transfer device, the control method being adapted to control the battery transfer device according to any one of claims 1 to 11, wherein, The control method comprises a battery (200) weighing method, the battery (200) weighing method comprises: The moving mechanism (60) drives the gripping mechanism (20) to move to the gripping station (51); The first tray (54) is lifted to the gripping position, the air source supply mechanism (70) supplies air to the gripping mechanism (20) to make the gripping mechanism (20) grip the battery (200); The lifting mechanism (30), the air source supply mechanism (70) and the gripping mechanism (20) are disconnected, and the gripping mechanism (20) is switched to the second position, and the first tray (54) is reset; The weighing mechanism (10) weighs the battery (200).

13. The control method of the battery transfer device according to claim 12, wherein The battery (200) weighing method further comprises: The lifting mechanism (30) and the air source supply mechanism (70) are reset to be connected with the gripping mechanism (20) to make the gripping mechanism (20) switch to the first position, and the first tray (54) is lifted to the gripping position; The moving mechanism (60) drives the gripping mechanism (20) to move along the second direction, and the weighing process is circulated.

14. The control method of the battery transfer device according to claim 12 or 13, wherein, The control method further comprises a weighing mechanism (10) calibration method, the weighing mechanism (10) calibration method comprising: The moving mechanism (60) drives the clamping mechanism (20) to move to a working position; The second tray (56) is lifted to a clamping position, the air supply mechanism (70) supplies air, and the clamping mechanism (20) clamps the detection weight (57); The lifting mechanism (30) is separated from the clamping mechanism (20), the clamping mechanism (20) is switched to a second position, the air supply mechanism (70) is separated from the clamping mechanism (20), and the second tray (56) is reset; The weighing mechanism (10) weighs the detection weight (57); The weighing value of the weighing mechanism (10) is compared with the calibration value of the detection weight (57), and if the difference exceeds a preset difference range, a calibration warning is issued.

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