Battery film application device and film application method thereof

Abstract

Disclosed in the present application are a battery film application device and a film application method thereof. The battery film application device has a film feeding station and a film application station, and the battery film application device comprises a battery positioning apparatus, a film feeding apparatus, a film application apparatus and a control apparatus, wherein the battery positioning apparatus is arranged at the film application station, and is configured to position a battery module in a tray at the film application station; the film feeding apparatus is arranged corresponding to the film feeding station, and is configured to provide a pre-formed insulating film to the film feeding station; the film application apparatus has a movement stroke between the film feeding station and the film application station, and is configured to pick up the pre-formed insulating film at the film feeding station and attach, at the film application station, the pre-formed insulating film to the battery module; the control apparatus is electrically connected to the battery positioning apparatus, the film feeding apparatus and the film application apparatus, and is configured to control operations of the battery positioning apparatus, the film feeding apparatus and the film application apparatus, thereby improving the automation level of the film application device, overcoming the shortcomings of manual operation, and greatly improving the work efficiency and product quality.

Description

Battery film laminating equipment and film laminating method

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 23, 2024, with application number 202410089401.2 and application name “Battery Film Laminating Equipment and Its Film Laminating Method”, the entire contents of which are incorporated by reference into the application. Technical Field

[0002] The present application relates to the technical field of battery module film lamination, and in particular to battery film lamination equipment and a film lamination method thereof. Background Art

[0003] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As the application of power batteries continues to expand, market demand is also growing. However, the existing battery lamination process is entirely manual, which is not only time-consuming and labor-intensive, but also lacks precision, making it difficult to improve production efficiency and product quality. Technical Solutions

[0004] The main purpose of this application is to propose a battery film laminating device and a film laminating method thereof, aiming to solve the problems of insufficient manual operation and low production efficiency.

[0005] In a first aspect, the present application provides a battery film laminating device, the battery film laminating device comprising a film supply station, a lifting station, and a film laminating station arranged corresponding to the lifting station in a third direction, the battery film laminating device comprising:

[0006] A conveyor line passes through the lifting station, and the conveyor line is used to convey the battery module to the lifting station;

[0007] The battery positioning device includes a positioning base and a positioning jacking structure provided on the positioning base, wherein the positioning jacking structure moves between the jacking station and the film laminating station to lift the battery module at the jacking station to the film laminating station;

[0008] a film supply device, provided corresponding to the film supply station, for providing a formed insulating film to the film supply station; and

[0009] a film sticking device having a movable stroke between the film supply station and the film sticking station, for picking up the formed insulating film at the film supply station and sticking the formed insulating film to the battery module at the film sticking station; and

[0010] The control device is electrically connected to the battery positioning device, the film supply device and the film sticking device, and is used to control the actions of the battery positioning device, the film supply device and the film sticking device.

[0011] In this embodiment, a conveyor line is provided to convey the battery module to the positioning base, and a positioning lifting structure is provided to drive the battery module to move along the third direction to the film pasting station. A film supply device is provided to provide a formed insulating film to the film supply station. A film pasting device is provided to attach the formed insulating film at the film supply station to the battery module on the film pasting station. A control device is provided to control the actions of the battery positioning device, the film supply device and the film pasting device. In this way, the control device is provided to control the battery positioning device to position the battery module at the film pasting station, and the film supply device is controlled to provide the formed insulating film to the film supply station, and then the film pasting device is controlled to attach the formed insulating film at the film supply station to the battery module, thereby improving the degree of automation of the film pasting equipment, overcoming the shortcomings of manual operation, and greatly improving work efficiency and product quality.

[0012] In some embodiments, the positioning and lifting structure includes:

[0013] a positioning jacking seat, movably mounted on the positioning machine base along the third direction, the positioning jacking seat being used to movably penetrate the avoidance hole in the middle of the tray; and

[0014] The positioning jacking drive structure is provided on the positioning machine base and is drivingly connected to the positioning jacking seat to drive the positioning jacking seat to move along the third direction.

[0015] In this embodiment, the battery modules are loaded on a tray and transferred to the battery positioning device via a conveyor. The lower portion of the battery modules is usually blocked by the tray, preventing film application to the lower portion of the battery modules. Therefore, in this application, a positioning jacking seat is provided to bear the load of the battery modules, and a positioning jacking drive structure is provided to drive the positioning jacking seat to move in a third direction to separate the battery modules from the tray, thereby transferring the battery modules to the film application station.

[0016] In some embodiments, the battery positioning device includes a positioning clamping structure, which includes two positioning clamping parts installed on the positioning base at intervals along a first direction, and at least one of the positioning clamping parts can move along the first direction so that the two positioning clamping parts can clamp and position the battery module at the film-laminating station.

[0017] In this embodiment, a positioning base is provided to install a positioning clamping structure, and two positioning clamping parts are provided to clamp and position the battery module on the positioning base. In this way, by providing a positioning clamping structure, after the battery module is transferred to the battery positioning device, the battery module is clamped and positioned on the positioning base, thereby reducing the risk of movement of the battery module during subsequent film application, thereby facilitating subsequent film application on the battery module.

[0018] In some embodiments, the battery positioning device includes a positioning jacking structure for driving the battery module to move along a third direction to the film laminating station;

[0019] The positioning machine base includes a positioning base body and two positioning mounting seats movably mounted on the positioning base body along a third direction, and the two positioning clamping parts are respectively mounted on the two positioning mounting seats.

[0020] In this embodiment, two mounting seats are provided so that the two positioning clamping parts can move along the third direction, so as to transfer the battery module to the film laminating station, thereby facilitating the subsequent film laminating of the battery module.

[0021] In some embodiments, the positioning and clamping structure further includes a first positioning and clamping driving device provided on the positioning base, and the first positioning and clamping driving device is drivingly connected to the positioning and clamping portion to drive the positioning and clamping portion to move along the first direction.

[0022] In this embodiment, a first positioning and clamping driving device is provided to drive the positioning and clamping portion to move, so that the positioning and clamping structure can clamp and position the battery module on the positioning base.

[0023] In some embodiments, the positioning and clamping structure further includes a second positioning and clamping driving device provided on the positioning seat body, wherein the second positioning and clamping driving device is drivingly connected to the positioning mounting seat to drive the positioning mounting seat to move along the third direction;

[0024] Wherein, the first positioning clamping drive device is arranged on the positioning mounting seat.

[0025] In this embodiment, a second positioning clamping drive device is provided to drive the positioning mounting seat to move so as to transfer the battery module to the film laminating station, thereby facilitating the subsequent film laminating of the battery module.

[0026] In some embodiments, the battery positioning device further includes a positioning and leveling structure, the positioning and leveling structure including two positioning and leveling portions spaced apart along a second direction, each of the positioning and leveling portions being movable along the second direction so that the two positioning and leveling portions can clamp and level the battery module;

[0027] The first direction and the second direction are arranged to intersect with each other.

[0028] In this embodiment, by setting two positioning and leveling parts, the positioning and leveling structure can level both sides of the battery module in the width direction so that the sides of the battery module are flush, and the two positioning and leveling parts can be respectively withdrawn from the leveling position so that the film can be applied to both sides of the battery module in the width direction subsequently.

[0029] In some embodiments, the battery positioning device includes a positioning jacking structure for driving the battery module to move along a third direction to the film laminating station;

[0030] The positioning machine base includes a positioning base body and two positioning leveling bases movably installed on the positioning base body along a third direction, and the two positioning leveling parts are respectively arranged on the two positioning leveling bases.

[0031] In this embodiment, the battery module is leveled after it moves upward to the film laminating station. Therefore, in this embodiment, two positioning and leveling seats are provided to enable the two positioning and leveling parts to move upward, so that the positioning and leveling structure can adapt to the positioning clamping structure to level the battery module so that both sides of the battery module along the width direction can be flush, which facilitates the subsequent film laminating of the battery module.

[0032] In some embodiments, the positioning and leveling structure further includes two first positioning and leveling driving devices provided on the positioning base, and the two first positioning and leveling driving devices drive and connect the two positioning and leveling parts to drive the positioning and leveling parts to move along the second direction.

[0033] In this embodiment, if the two positioning and leveling parts are driven by one driving device, an additional transmission structure needs to be set up, and the structure is relatively complicated. Therefore, two first positioning and leveling driving devices are set up to drive the two positioning and leveling parts separately to avoid the two positioning and leveling parts affecting each other.

[0034] In some embodiments, the positioning and leveling structure also includes a second positioning and leveling drive device provided on the positioning seat body, the second positioning and leveling drive device drives the connected positioning and leveling seat to drive the positioning and leveling seat to move along the third direction, wherein the first positioning and leveling drive device is provided on the positioning mounting seat.

[0035] In this embodiment, a second positioning and leveling drive device is provided to drive the positioning and leveling seat to move so as to adapt to the positioning clamping structure so as to level the battery module at the film laminating station so that both sides of the battery module along the width direction are flush, thereby facilitating the subsequent laminating of the battery module.

[0036] In some embodiments, the battery positioning device further includes a tray positioning structure provided on the positioning base, for positioning the tray on the positioning base.

[0037] In this embodiment, a tray positioning structure is provided to position the tray loaded with battery modules at a preset position so as to facilitate subsequent film application to the battery modules.

[0038] In some embodiments, the tray positioning structure includes:

[0039] A tray positioning seat, movably mounted on the positioning machine base along a third direction;

[0040] a tray positioning pin, provided on the tray positioning seat, for passing through a corresponding positioning hole on the tray; and

[0041] The tray positioning drive structure is provided on the positioning machine base and is drivingly connected to the tray positioning seat to drive the tray positioning seat to move along the third direction.

[0042] In this embodiment, a pallet positioning seat is provided to install a pallet positioning pin, and the pallet positioning pin is provided to position the pallet at a preset positioning position. At the same time, a pallet positioning drive structure is provided to drive the pallet positioning seat to move, which can drive the pallet positioning pin upward to pass through the corresponding positioning hole on the pallet to position the pallet on the positioning base, and can also drive the pallet positioning pin downward to enable the pallet loaded with the battery module to be transferred to the battery positioning device.

[0043] In some embodiments, a plurality of the pallet positioning pins are provided, and the plurality of the pallet positioning pins are spaced apart on the pallet positioning seat.

[0044] In this embodiment, if there is only one pallet positioning pin, the pallet may rotate and cannot be completely positioned. Therefore, multiple pallet positioning pins are provided to reduce the possibility of the pallet rotating, so that the pallet can be completely positioned on the positioning base.

[0045] In some embodiments, the battery positioning device also includes a battery cell unlocking structure provided on the positioning base, and the battery cell unlocking structure includes a battery cell unlocking member that can move along the first direction to drive the clamp on the tray to move along the first direction toward the outside of the tray.

[0046] In this embodiment, the battery cell unlocking member is arranged to be movable so that the battery unlocking member can compress the locking spring on the tray, so that the clamping plate can move toward the outside of the tray along the first direction, so as to release the clamping fixation of the battery module by the tray, which helps to separate the battery module from the tray later.

[0047] In some embodiments, the battery cell unlocking structure further includes:

[0048] Unlock the mounting base and slide it along the first direction to be installed on the positioning base;

[0049] an unlocking sliding seat, slidably mounted on the unlocking mounting seat along a second direction, the battery cell unlocking member being disposed on the unlocking sliding seat; and

[0050] The unlocking drive structure includes a first unlocking drive device provided between the positioning machine base and the unlocking mounting seat, and a second unlocking drive device provided between the unlocking mounting seat and the unlocking sliding seat, wherein the first unlocking drive device is drivingly connected to the unlocking mounting seat to drive the unlocking mounting seat to move along the first direction, and the second unlocking drive device is drivingly connected to the unlocking sliding seat to drive the unlocking sliding seat to move along the second direction;

[0051] The first direction and the second direction are arranged to intersect with each other.

[0052] In this embodiment, when it is necessary to release the lock of the tray on the battery module, the second unlocking drive device drives the unlocking sliding seat to move along the second direction, thereby driving the battery cell unlocking piece to move along the second direction, so that the battery cell unlocking piece can be inserted into the tray along the second direction, and then the first unlocking drive device drives the unlocking mounting seat to move along the first direction, thereby driving the battery cell unlocking piece to move in the first direction, so that the battery cell unlocking piece can compress the locking spring on the tray, so that the clamp on the tray can move toward the outside of the tray along the first direction, thereby allowing the tray to release the clamping lock on the battery module. In this way, by providing the unlocking sliding seat, the battery cell unlocking piece can be moved in the second direction, and by providing the unlocking mounting seat, the battery cell unlocking piece can be moved in the first direction. At the same time, by providing the unlocking drive structure, the unlocking mounting seat and the unlocking sliding seat are driven to move, so that the battery cell unlocking piece can release the clamping lock of the tray on the battery module.

[0053] In some embodiments, a plurality of the battery cell unlocking structures are provided, and the plurality of battery cell unlocking structures are spaced apart along the first direction and / or the second direction to respectively correspond to the plurality of locking springs of the tray.

[0054] In this embodiment, multiple battery cell unlocking structures are provided to compress corresponding locking springs on the tray, so that the clamping plates on the tray can translate, thereby facilitating the clamping plates on the tray to slide along the first level.

[0055] In some embodiments, the film supply device includes:

[0056] Feeder base;

[0057] A material feeding structure, comprising a film feeding tray provided on the feeder base, the film feeding tray being used to install an insulating film roll;

[0058] A separation structure, provided on the feeder base, for separating the insulating film roll into insulating film and release paper;

[0059] A film-pulling structure includes a film-pulling seat mounted on the feeder seat, and two film-pulling clamping parts mounted on the film-pulling seat, wherein the distance between the two film-pulling clamping parts is adjustable for clamping or loosening the insulating film, and the film-pulling seat is movably arranged along a first direction for pulling the insulating film to the film-feeding station; and

[0060] The cutting structure includes a cutting knife arranged on the feeder base, which is used for cutting the insulating film to form the formed insulating film at the film feeding station.

[0061] In this embodiment, a feeder base is provided to install a feed structure, a separation structure, a film pulling structure and a cutting structure; a feed tray is provided to provide an insulating film roll; a separation structure is provided to separate the insulating film roll into an insulating film and a release paper; a film pulling structure is provided to pull out an insulating film of a target length as needed; a cutting structure is provided to form a molded insulating film of a target length, so that the length of the molded insulating film can be adapted to the film length of the battery module, thereby helping to improve the versatility of the film feeding device.

[0062] In some embodiments, the film supply device further includes a film-pulling clamping structure provided on the feeder base, wherein the film-pulling clamping structure is provided between the film supply tray and the film-pulling structure to fix the insulating film on the feeder base.

[0063] In this embodiment, a film-pulling clamping structure is provided to clamp the insulating film between the separation structure and the film-pulling structure, which not only facilitates the cutting structure to cut the pulled insulating film, but also reduces the probability of the insulating film shrinking into a ball, thereby helping the subsequent film-pulling structure to continue pulling the film.

[0064] In some embodiments, the film-drawing clamping structure comprises:

[0065] Two film-pulling clamping parts are provided on the feeder base, at least one of the film-pulling clamping parts is a movable film-pulling clamping part, and the movable film-pulling clamping part is movably arranged along a third direction to clamp the insulating film to the feeder base; and

[0066] The film-pulling clamping driving structure is arranged on the feeder base and is drivingly connected to the film-pulling movable clamping part to drive the film-pulling movable clamping part to move along the third direction.

[0067] In this embodiment, a film-pulling clamping driving structure is provided to drive the movable film-pulling clamping portion to move so as to clamp or loosen the insulating film, which does not affect the film-pulling structure and facilitates the cutting structure to cut the insulating film.

[0068] In some embodiments, the separation structure comprises:

[0069] A positioning roller is provided on the feeder base and is arranged corresponding to the film drawing structure; and

[0070] The winding roller is rotatably mounted on the feeder base and is used for separating and winding the release paper.

[0071] In this embodiment, a positioning roller is provided so that the separated insulating film is flush with the height of the film-pulling structure so that the film-pulling structure can pull the film. At the same time, a winding roller is provided so that the release paper can be separated and the separated release paper can be wound up.

[0072] In some embodiments, the feeding structure, the film pulling structure and the cutting structure are correspondingly configured as film feeding groups, two film feeding groups are provided, and the two film feeding groups are installed at intervals on the feeding machine base.

[0073] In this embodiment, two film supply groups are provided so that when the film pasting device absorbs the formed insulating film of one of the film supply groups, the other film supply group can provide the formed insulating film, thereby reducing the possibility of the film pasting device waiting, thereby helping to improve the film supply efficiency of the film supply device.

[0074] In some embodiments, the film supply device further includes a film supply supporting seat movably mounted on the feeder seat along a third direction for supporting the pulled-out insulating film.

[0075] In this embodiment, when the film-pulling structure needs to pull the film, the film supply support seat moves downward to prevent the film supply support from interfering with the film-pulling structure, so that the film-pulling structure can pull out the insulating film. When the film-pulling structure does not need to pull the film, the film supply support seat moves upward to carry the cut and formed insulating film, making it convenient for the film-sticking device to absorb the formed insulating film.

[0076] In some embodiments, the film-sticking device includes:

[0077] A robotic arm having a movable range between the film supply station and the film laminating station;

[0078] A film mounting base, mounted on the robotic arm;

[0079] The adsorption device is provided on the film mounting seat, and is used to absorb the formed insulating film on the film supply station when the robot arm is at the film supply station, and to attach the formed insulating film to the battery module at the film supply station when the robot arm is at the film supply station.

[0080] In this embodiment, the film mounting seat is provided so as to set up an adsorption device, and at the same time, the adsorption device is provided so as to adsorb the formed insulating film. At the same time, a robotic arm is provided to switch between the film supply station and the film sticking station so as to attach the formed insulating film at the film supply station to the battery module.

[0081] In some embodiments, the film mount includes:

[0082] The film sticking seat body is installed on the mechanical arm;

[0083] a film sticking movable seat, mounted on the film sticking seat body in a direction approaching or moving away from the film sticking seat body; and

[0084] The film sticking buffer structure is provided between the film sticking seat body and the film sticking movable seat, and is used for elastically supporting the film sticking movable seat.

[0085] In this embodiment, a film sticking seat body is provided to install the film sticking movable seat, and a film sticking buffer structure is provided to elastically support the film sticking movable seat, so that the film sticking movable seat and the battery module can form an elastic abutment, which is beneficial to buffering the impact of the film sticking device.

[0086] In some embodiments, the film holder body is provided with a film mounting hole;

[0087] The film buffer structure includes:

[0088] A film mounting rod, one end of which is provided on the film movable seat, and the other end of which is provided through the film mounting hole in the direction of approaching or moving away from the film mounting seat body;

[0089] a film sticking elastic member, which is sleeved on the outer peripheral side of the film sticking mounting rod and is located between the film sticking seat body and the film sticking movable seat; and

[0090] An elastic adjustment sleeve is threadedly sleeved on the other end of the film mounting rod and is used to adjust the distance between the film mounting seat body and the film mounting movable seat.

[0091] In this embodiment, a film mounting rod is provided so that the film elastic member can be mounted thereon to prevent the film elastic member from deforming radially along the film mounting rod. A film elastic member is provided so as to elastically support the film movable seat so that the film device and the battery module can form an elastic abutment. At the same time, an elastic adjustment sleeve is provided so as to adjust the distance between the film mounting seat and the film movable seat, thereby adjusting the elastic force of the film elastic member.

[0092] In some embodiments, the film pasting device includes a film pasting pressing roller movably mounted on the film pasting mounting seat along the thickness direction of the film pasting mounting seat.

[0093] In this embodiment, the movement of the film pressing roller does not affect the film laminating of the battery module by the film laminating device, but can also roll the film-laminated battery module, thereby helping to improve the film laminating effect of the film laminating device.

[0094] In some embodiments, the film-sticking device includes a camera device mounted on the film-sticking mounting seat, and the camera device is electrically connected to the control device.

[0095] In this embodiment, by setting up a camera device, it is possible to take a picture of the length of the battery module at the film laminating station to obtain the target film laminating length of the battery module, so that the film supply structure can supply the insulating film of the target film laminating length, which is beneficial to improve the accuracy of the film supply of the film supply device, and it is possible to take a picture of the formed insulating film at the film supply station to determine whether the length of the formed insulating film is consistent with the target film laminating length of the battery module, thereby helping to improve the film laminating yield of the film laminating equipment.

[0096] In a second aspect, the present application further provides a film laminating method for the battery film laminating equipment as described above, wherein the battery film laminating equipment comprises a film supply station, a lifting station, and a film laminating station arranged corresponding to the lifting station in a third direction. The battery film laminating equipment comprises a conveyor line, a battery positioning device, a film supply device, and a film laminating device. The battery positioning device comprises a positioning base and a positioning lifting structure. The film laminating method comprises:

[0097] Positioning step: when the conveyor line transfers the tray loaded with battery modules to the lifting station, controlling the positioning and lifting structure to work, so as to lift the battery module at the lifting station to the film laminating station;

[0098] Film supply step: controlling the film supply device to supply the formed insulating film to the film supply station;

[0099] Film sticking step: controlling the film sticking device to pick up the formed insulating film at the film supply station and sticking the formed insulating film to the battery module at the film sticking station.

[0100] In this embodiment, when the conveying device conveys the pallet loaded with battery modules to the film laminating station, the battery positioning device is controlled to work so as to position the pallet loaded with battery modules at the film laminating station, and the film supply device is controlled to work so as to supply the formed insulating film to the film supply station. At the same time, the film laminating device is controlled to work so as to absorb the formed insulating film at the film supply station and attach it to the battery module at the film laminating station. In this way, by setting up a control device, the battery positioning device is controlled to position the battery module at the film laminating station, and the film supply device is controlled to provide the formed insulating film to the film supply station, and then the film laminating device is controlled to attach the formed insulating film at the film supply station to the battery module, thereby improving the degree of automation of the film laminating equipment, overcoming the shortcomings of manual operation, and greatly improving work efficiency and product quality.

[0101] Since the above-mentioned film laminating method adopts the battery film laminating equipment described in any of the above-mentioned embodiments, it has at least the beneficial effects of the above-mentioned embodiments, which will not be described one by one here.

[0102] In some embodiments, before the positioning step, the film applying method further includes a film applying identification step, and the film applying identification step includes:

[0103] Obtaining film application information, wherein the film application information includes normal film application information of the battery module to be film applied on a tray;

[0104] When the film-sticking information is normal film-sticking information, the positioning step is entered.

[0105] In this embodiment, when the tray reaches the battery positioning device, the film information of the battery module on the tray is determined. When the film information of the battery module loaded on the tray is determined to be normal film information, it means that the battery module needs to be filmed. At this time, the control device controls the tray loaded with the battery module to enter the positioning step so that the battery module that needs to be filmed can be filmed. In this way, before the battery positioning device works, the battery module entering the battery positioning device is identified so that the battery module that needs to be filmed enters the positioning step, thereby effectively improving the filming efficiency of the filming equipment.

[0106] In some embodiments, obtaining the film information includes:

[0107] Acquire tray information, wherein the tray information includes first tray information on which the battery module is loaded;

[0108] When the tray information is the first tray information, continue to identify the module information of the battery module, wherein the module information includes the first module information of the battery module to be film-applied;

[0109] When the module information is the first module information, it is determined that the film pasting information is normal film pasting information.

[0110] In this embodiment, after the tray enters the battery positioning device, the tray information is obtained to determine whether the tray is loaded with a battery module. When the tray information is determined to be the first tray information, it means that the tray is loaded with a battery module. Then, the module information of the battery module is obtained to determine whether the battery module needs to be filmed. When the module information is determined to be the first module information, it means that the battery module loaded in the tray is a battery module that needs to be filmed. In this way, the normal filming information of the battery module is determined through the tray information and the module information, so as to identify the battery module entering the battery positioning device, so that the filming equipment only films the battery modules that need to be filmed, thereby helping to improve the filming efficiency of the filming equipment.

[0111] In some embodiments, the battery positioning device includes a positioning clamping structure and a tray positioning structure;

[0112] The positioning step includes:

[0113] After the conveyor line transfers the pallet loaded with the battery module to the lifting station, the pallet positioning structure is controlled to work to position the battery module at the lifting station, and then the positioning clamping structure is controlled to work to clamp the battery module at the positioning base.

[0114] In this embodiment, after the tray enters the battery positioning device, the tray positioning structure is first controlled to move so as to position the tray loaded with the battery module at a preset positioning position, and then the positioning clamping structure is controlled to work so as to clamp the battery module to the positioning base after the battery module is positioned at the preset positioning position, thereby reducing the risk of movement of the battery module during subsequent film application, thereby facilitating the subsequent film application of the battery module.

[0115] In some embodiments, the battery positioning device includes a battery cell unlocking structure and a positioning and leveling structure;

[0116] The positioning step further includes:

[0117] After the positioning clamping structure clamps the battery module and before the positioning lifting structure is lifted, the battery cell unlocking structure is controlled to operate to drive the clamping plate on the tray to move toward the outside of the tray along the first direction, so that the tray releases the clamping lock on the battery module; and after the positioning lifting structure lifts the battery module to the film laminating station, the positioning leveling structure is controlled to operate so that the two sides of the battery module along the second direction are flush.

[0118] In this embodiment, after the positioning clamping structure clamps the battery module, the battery cell unlocking structure is first controlled to operate so that the battery unlocking part can compress the locking spring on the tray so that the clamping plate can move along the first direction toward the outside of the tray to release the clamping of the battery module by the tray. Then, the positioning lifting structure is controlled to operate to carry the battery module, which is beneficial to reduce the clamping force of the positioning clamping structure on the battery module and facilitates the separation of the battery module from the tray. Then, the positioning leveling structure is controlled to operate to level both sides of the battery module along the width direction so that the subsequent film laminating device can laminarize the film.

[0119] In some embodiments, the film-applying device includes a camera device, and the film-supplying device includes a separation structure, a film-pulling structure, and a cutting structure;

[0120] The film supply step comprises:

[0121] The camera device is controlled to take a picture of the battery module to determine the target film length of the battery module, and then the film pulling structure and the separation structure are controlled to separate and pull out the insulating film of the target film length, and then the cutting structure is controlled to cut the pulled insulating film to form the molded insulating film.

[0122] In this embodiment, after the battery module enters the battery positioning device, the camera device is controlled to take a picture of the battery module at the film laminating station to obtain the target film laminating length of the battery module, and then the film pulling structure and the separation structure are controlled to separate the insulating film roll into insulating film and release paper, and pull out the insulating film of the target length, and then the cutting structure is controlled to cut the pulled insulating film to form a molded insulating film of the target length.

[0123] In some embodiments, the film supply device further comprises a film pulling and clamping structure;

[0124] The film supply step comprises:

[0125] After the film-drawing structure draws out the insulating film of the target film-sticking length and before the cutting structure cuts the film, the film-drawing clamping structure is controlled to operate so as to clamp the drawn insulating film.

[0126] In this embodiment, after the film-pulling structure pulls out the insulating film of the target film length and before the cutting structure cuts, the film-pulling structure is controlled to work and the insulating film between the separation structure and the film-pulling structure is clamped to clamp the two ends of the insulating film. This not only facilitates the cutting structure to cut the pulled insulating film, but also reduces the probability of the insulating film shrinking into a ball, thereby helping the subsequent film-pulling structure to continue pulling the film.

[0127] In some embodiments, the film-sticking device includes a robotic arm, a film-sticking mounting seat mounted on the robotic arm, and an adsorption device mounted on the film-sticking mounting seat;

[0128] The film-sticking step includes:

[0129] The robot arm is controlled to move to the film supply station, and then the adsorption device is controlled to work to adsorb the formed insulating film. The robot arm is then controlled to move to the film sticking station to stick the formed insulating film to the battery module.

[0130] In this embodiment, the robot arm is first controlled to move to the film supply station to absorb the formed insulating film at the film supply station, and then the robot arm is controlled to move to the film pasting station to attach the formed insulating film to the battery module at the film pasting station.

[0131] In some embodiments, the film laminating device further includes a film laminating roller;

[0132] The film-sticking step further includes:

[0133] After the molded insulating film is attached to the battery module, the film pressing roller moves to abut against the molded insulating film, and then the robot arm is controlled to move to roll the battery module attached with the molded insulating film.

[0134] In this embodiment, after the formed insulating film is attached to the battery module, the film pressing roller is first controlled to move so that the film pressing roller protrudes from the adsorption device, and then the robotic arm is controlled to move to roll the battery module with the formed insulating film attached, which helps to improve the film laminating effect of the film laminating device.

[0135] In some embodiments, after the film applying step, the film applying method further includes a detection step, and the detection step includes:

[0136] Obtaining an actual film application range on at least one of the battery modules;

[0137] According to the actual film pasting range, it is determined whether the film pasting of the battery module meets the requirements.

[0138] In this embodiment, after the film is pasted on the battery module, it is necessary to determine whether the film pasting of the battery module meets the requirements. Therefore, the actual film pasting range is obtained to determine the film pasting condition of the battery module. In this way, by obtaining at least one actual film pasting range, the interference of external factors can be reduced, which is conducive to accurately determining whether the film pasting of the battery module meets the requirements, so as to divert the battery modules and prevent battery modules with unqualified film pasting from being transferred to subsequent processing stations.

[0139] In some embodiments, determining whether the film application of the battery module meets the requirements based on the actual film application range includes:

[0140] When at least one of the actual film pasting ranges meets the preset film pasting range, it is determined that the film pasting of the battery module meets the requirements;

[0141] When the actual film pasting range does not meet the preset film pasting range, it is manually determined whether the film pasting of the battery module meets the requirements.

[0142] In this embodiment, since the control device is greatly affected by the movement of the robotic arm or the camera device itself when judging the film-sticking condition of the battery module, there may be certain misjudgments. Therefore, if any one of the multiple actual film-sticking ranges meets the preset film-sticking range, it means that the film-sticking of the battery module meets the requirements. If all the actual film-sticking ranges do not meet the preset film-sticking range, at this time, the film-sticking condition of the battery module is manually judged to reduce the probability of mechanical misjudgment.

[0143] In some embodiments, when the actual film application range does not meet the preset film application range, manually determining whether the film application of the battery module meets the requirements includes:

[0144] When it is manually determined that the film of the battery module meets the requirements, determining that the film state of the battery module meets the requirements;

[0145] When it is manually determined that the film of the battery module does not meet the requirements, it is determined that the film of the battery module does not meet the requirements.

[0146] In this embodiment, when it is manually determined that the film of the battery module meets the requirements, it means that the film of the battery module meets the requirements. At this time, it is determined that the film state of the battery module meets the requirements. When it is manually determined that the film of the battery module does not meet the requirements, it means that the film of the battery module does not meet the requirements. At this time, it is determined that the film state of the battery module does not meet the requirements. In this way, the film condition of the battery module is first determined by a machine, and then the film condition of the battery module is manually determined. This can greatly reduce the workload of manual judgment and reduce work intensity, and can effectively reduce the probability of mechanical or manual misjudgment, which is conducive to accurately determining the film condition of the battery module.

[0147] In some embodiments, before the film applying step, the film applying method further includes a film supply identification step, and the film supply identification step includes:

[0148] Acquiring film supply information at the film supply station, wherein the film supply information includes normal film supply information of the formed insulating film meeting the length of the battery module film;

[0149] When the film supply information is normal film supply information, the film sticking step is entered.

[0150] In this embodiment, when a molded insulating film is formed at the film supply station, the film supply information at the film supply station is obtained to determine whether the length of the molded insulating film at the film supply station meets the film length required by the battery module. When the film supply information is determined to be normal film supply information, it means that the length of the molded insulating film at the film supply station meets the film length required by the battery module. In this way, the film supply information is used to identify the length of the molded insulating film at the film supply station to ensure that the length of the imaged insulating film at the film supply station meets the film length required by the battery module, thereby helping to improve the film pass rate of the battery film equipment.

[0151] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0152] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0153] FIG1 is a schematic diagram of the three-dimensional structure of an embodiment of a battery film lamination device provided by the present application;

[0154] FIG2 is a schematic diagram of the three-dimensional structure of the battery positioning device in FIG1 ;

[0155] FIG3 is a schematic diagram of the three-dimensional structure of the battery positioning device (with the positioning and flattening structure hidden) in FIG1 ;

[0156] FIG4 is a schematic diagram of the three-dimensional structure of the positioning jacking structure in FIG1 ;

[0157] FIG5 is a schematic diagram of the three-dimensional structure of the battery cell unlocking structure in FIG1 ;

[0158] FIG6 is a schematic diagram of the three-dimensional structure of the tray in FIG1 ;

[0159] FIG7 is a schematic diagram of the three-dimensional structure of the film supply device in FIG1;

[0160] FIG8 is a schematic diagram of the three-dimensional structure of the film-sticking device in FIG1 ;

[0161] FIG9 is a schematic diagram of a partial top view of the film laminating device in FIG1 ;

[0162] FIG10 is a schematic diagram of the process of the film laminating method provided by the present application;

[0163] FIG11 is a flow chart of the film-applying identification step of the film-applying method provided by the present application;

[0164] FIG12 is a schematic flow chart of the positioning step of the film-mounting method provided in this application;

[0165] FIG13 is a schematic flow chart of the film supply step of the film laminating method provided in the present application;

[0166] FIG14 is a schematic flow chart of the film-applying step of the film-applying method provided in this application;

[0167] FIG15 is a flow chart of the detection steps of the film-applying method provided by the present application;

[0168] FIG16 is a flow chart of the film supply identification step of the film laminating method provided in the present application.

[0169] Description of Figure Numbers:

[0170] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0171] Implementation Methods of the Application

[0172] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0173] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0174] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0175] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0176] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0177] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0178] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0179] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0180] Currently, market developments indicate that power batteries are becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. As the application of power batteries continues to expand, market demand is also growing. In electric vehicles like electric vehicles, power batteries, as core components, are crucial to vehicle safety. Therefore, power battery safety is one of the most important performance criteria for power batteries.

[0181] Power batteries can be composed of multiple battery modules or battery cells. During production, a film laminating device is typically required to apply an insulating film to the surfaces of the battery modules or battery cells to prevent short circuits caused by contact between the modules or battery cells and the battery pack casing. However, the existing battery laminating process is entirely manual, which is not only time-consuming and labor-intensive, but also lacks precision, making it difficult to improve production efficiency and product quality.

[0182] Based on the above considerations, in order to improve the problems of insufficient manual operation and low production efficiency, please refer to Figures 1, 2, 7 and 8. The present application provides a battery film laminating device 100. The battery film laminating device 100 has a film supply station, a lifting station and a film laminating station arranged corresponding to the lifting station in a third direction. The battery film laminating device 100 includes a conveyor line, a battery positioning device 1, a film supply device 2, a film laminating device 3 and a control device. The conveyor line passes through the lifting station. The conveyor line is used to convey the battery module 300 to the lifting station. The battery positioning device includes a positioning base 11 and a positioning lifting device provided on the positioning base 11. Structure 14, the positioning and lifting structure 14 moves between the lifting station and the film pasting station, and is used to lift the battery module 300 at the lifting station to the film pasting station. The film supply device 2 is arranged corresponding to the film supply station, and is used to provide the formed insulating film to the film supply station. The film pasting device 3 has a movable stroke between the film supply station and the film pasting station, and is used to pick up the formed insulating film at the film supply station and attach the formed insulating film to the battery module 300 at the film pasting station. The control device is electrically connected to the battery positioning device 1, the film supply device 2 and the film pasting device 3, and is used to control the operation of the battery positioning device 1, the film supply device 2 and the film pasting device 3.

[0183] It is understood that the battery module 300 mentioned in the embodiment of the present application includes multiple battery cells. The number of battery cells can be set to any value according to different power requirements. Multiple battery cells can be connected in series, parallel or hybrid to achieve higher capacity or power.

[0184] It should be noted that the pallet 200 loaded with the battery module 300 in this application is transported by a conveying device, which is used to transfer the battery module 300 on the production line, so as to transport the battery module 300 processed in the upstream station to the film-laminating station, and at the same time transport the battery module 300 that has completed the film-laminating at the film-laminating station to the downstream station. There can be many types of structures. For example, the conveying device can be a belt conveyor device, a roller conveyor device or a double-speed chain conveyor device. This embodiment does not limit its specific structure.

[0185] It should be noted that the battery positioning device 1, the film supply device 2 and the film pasting device 3 can be arranged in a variety of situations. The two can be arranged on the same basis or on different basis. The embodiment of the present application does not limit this. Among them, there are many structures of the battery positioning device 1. For example, the battery positioning device 1 can be a pin hole positioning structure, or a clamping positioning structure, etc., as long as it can position the battery module 300 in the tray 200 at the film pasting station, the embodiment of the present application does not limit this. There are many structures of the film supply device 2. For example, the film supply device 2 can be a belt conveyor device, a roller conveyor device or a double-speed chain conveyor device, etc., as long as it can provide the formed insulating film to the film supply station, the embodiment of the present application does not limit this. There are many structures of the film pasting device 3. For example, the film pasting device 3 can be a robotic arm 31, or a combination of multiple movable structures, etc., as long as it can attach the formed insulating film of the film supply station to the battery module 300 of the film pasting station, the embodiment of the present application does not limit this. Furthermore, the electrical connection in the embodiment of the present application should not be narrowly understood as being connected only through a circuit structure, but can also be connected wirelessly. The control device can control the battery positioning device 1, the film supply device 2 and the film pasting device 3 respectively through electrical signals or wireless signals. At the same time, it can be understood that there is no necessary order relationship between the control device's control of the battery positioning device 1 and the film supply device 2, and it needs to be determined according to the activities of the battery positioning device 1 and the film supply device 2. What needs to be guaranteed in the end is that before the film pasting device 3 works, the battery positioning device 1 needs to position the battery module 300 on the film pasting station, and the film supply device 2 needs to transport the formed insulating film to the film supply station, so that the film supply device 2 can attach the formed insulating film at the film supply station to the battery module 300 on the film pasting station.

[0186] In the technical solution of the embodiment of the present application, a conveyor line is set up to convey the battery module to the positioning machine base, and a positioning jacking structure is set up to drive the battery module to move along the third direction to the film pasting station, a film supply device 2 is set up to provide a formed insulating film to the film supply station, and a film pasting device 3 is set up to attach the formed insulating film at the film supply station to the battery module 300 on the film pasting station, and a control device is set up to control the actions of the battery positioning device 1, the film supply device 2 and the film pasting device 3. In this way, by setting up the control device, the battery positioning device 1 is controlled to position the battery module 300 at the film pasting station, and the film supply device 2 is controlled to provide the formed insulating film to the film supply station, and then the film pasting device 3 is controlled to attach the formed insulating film at the film supply station to the battery module 300, thereby improving the degree of automation of the film pasting equipment, overcoming the shortcomings of manual operation, and greatly improving work efficiency and product quality.

[0187] Please continue to refer to Figures 2 and 3. In some embodiments of the present application, the battery positioning device 1 includes a positioning base 11 and a positioning clamping structure 12. The positioning clamping structure 12 includes two positioning clamping parts 121 installed on the positioning base 11 at intervals along a first direction. At least one positioning clamping part 121 can move along the first direction so that the two positioning clamping parts 121 can clamp and position the battery module 300 at the film-laminating station.

[0188] It should be noted that the positioning base 11 is mainly used to carry the positioning clamping structure 12, and its shape is various. For example, the positioning base 11 can be polygonal, square, or circular, etc., as long as it can carry the positioning clamping structure 12. The embodiment of the present application does not limit this. Furthermore, there are many options for the material of the positioning base 11. For example, the positioning base 11 can be made of metal materials such as iron and aluminum, or alloy materials such as steel and aluminum alloy, or inorganic non-metallic materials such as nanoceramics. The embodiment of the present application does not limit this.

[0189] It is understandable that the first direction can be the front-to-back direction, or the left-to-right direction, etc., and the embodiments of the present application do not limit this. Specifically, the first direction is the X direction as shown in the figure. In addition, there are many types of positioning clamping parts 121. For example, the positioning clamping part 121 can be a positioning clamping block, a positioning clamping plate, etc., as long as it can be used to clamp the battery module 300, the embodiments of the present application do not limit this. Furthermore, of the two positioning clamping parts 121, one of the positioning clamping parts 121 can be movable, or both positioning clamping parts 121 can be movable, and the embodiments of the present application do not limit this. In addition, there are many numbers of battery modules, which can be one battery module or multiple battery modules arranged along the first direction, and the embodiments of the present application do not limit this.

[0190] In this embodiment, a positioning base 11 is provided to install a positioning clamping structure 12, and two positioning clamping parts 121 are provided to clamp and position the battery module 300 on the positioning base 11. In this way, by providing the positioning clamping structure 12, after the battery module 300 is transferred to the battery positioning device 1, the battery module 300 is clamped and positioned on the positioning base 11, thereby reducing the risk of movement of the battery module 300 during subsequent film application, thereby facilitating the subsequent film application of the battery module 300.

[0191] Please continue to refer to Figures 2 and 3. In some embodiments of the present application, the battery positioning device 1 includes a positioning lifting structure 14 for driving the battery module 300 to move along a third direction to the film-laminating station. The positioning base 11 includes a positioning base body 111 and two positioning mounting bases 112 movably installed on the positioning base body 111 along the third direction. The two positioning clamping parts 121 are respectively installed on the two positioning mounting bases 112.

[0192] It should be noted that the third direction can be the up-down direction, or it can be a direction extending along the up-down direction and having a certain angle with the up-down direction. The embodiments of the present application do not limit this. Specifically, the third direction is the Z direction as shown in the figure. In addition, since the battery module 300 is loaded in the tray 200 and translated to the battery positioning device 1 by the conveying device, if the battery module 300 is directly filmed after the positioning clamping structure 12 clamps and positions the battery module 300, the film-applying device 3 is also likely to interfere with other structures on the positioning base 11. In the present application, after the two positioning clamping parts 121 clamp and position the battery module 300, the two positioning mounting seats 112 move upward to move the battery module 300 to the film-applying station, facilitating the subsequent film-applying of the battery module 300.

[0193] In this embodiment, two mounting seats are provided so that the two positioning clamping portions 121 can move along the third direction, so as to transfer the battery module 300 to the film laminating station, thereby facilitating the subsequent film laminating of the battery module 300 .

[0194] In some embodiments of the present application, the positioning and clamping structure 12 further includes a first positioning and clamping driving device 122 provided on the positioning base 11 . The first positioning and clamping driving device 122 drives the connected positioning and clamping portion 121 to drive the positioning and clamping portion 121 to move along the first direction.

[0195] It should be noted that there are various types of first positioning and clamping drive device 122. For example, the first positioning and clamping drive device 122 can be a pneumatic cylinder, an oil cylinder, or an electric push rod, etc., and this embodiment of the present application does not limit this. Specifically, the first positioning and clamping drive device 122 is a locking pneumatic cylinder to accurately control the movement position of the positioning and clamping portion 121, thereby accurately controlling the clamping force of the positioning and clamping structure 12, reducing the possibility of excessive or insufficient clamping force.

[0196] In this embodiment, a first positioning and clamping driving device 122 is provided to drive the positioning and clamping portion 121 to move, so that the positioning and clamping structure 12 can clamp and position the battery module 300 on the positioning base 11 .

[0197] In some embodiments of the present application, the positioning clamping structure 12 also includes a second positioning clamping drive device provided on the positioning seat body 111, and the second positioning clamping drive device drives the connected positioning mounting seat 112 to drive the positioning mounting seat 112 to move along a third direction, wherein the first positioning clamping drive device 122 is provided on the positioning mounting seat 112.

[0198] It should be noted that there are many types of second positioning and clamping drive devices. For example, the second positioning and clamping drive device can be a pneumatic cylinder, an oil cylinder, an electric push rod, etc., and the embodiments of the present application do not limit this.

[0199] In this embodiment, a second positioning clamping drive device is provided to drive the positioning mounting seat 112 to move, so as to transfer the battery module 300 to the film laminating station, thereby facilitating the subsequent film laminating of the battery module 300 .

[0200] Please continue to refer to Figure 2. In some embodiments of the present application, the battery positioning device 1 also includes a positioning and leveling structure 13. The positioning and leveling structure 13 includes two positioning and leveling portions 131 spaced apart along the second direction. Each positioning and leveling portion 131 can move along the second direction so that the two positioning and leveling portions 131 can clamp the battery module 300 flat, wherein the first direction and the second direction are arranged to intersect.

[0201] It should be noted that the first direction and the second direction can be front-to-back, left-to-right, etc., and the embodiments of the present application do not limit this. For example, the first horizontal direction is front-to-back, and correspondingly, the second horizontal direction is left-to-right, or the first direction is left-to-right, and correspondingly, the second horizontal direction is front-to-back. Specifically, the first direction is the X direction as shown in the figure, and the second direction is the Y direction as shown in the figure. There are many types of positioning and leveling parts 131. For example, the positioning and leveling part 131 can be a positioning and leveling block, a positioning and leveling plate, etc., as long as it can be used to level both sides of the width direction of the battery module 300 so that both sides of the width direction of the battery module can be flush, the embodiments of the present application do not limit this. In particular, since the positioning and leveling structure 13 is leveled by clamping the two positioning and leveling parts 131, after the positioning and leveling structure 13 is leveled, the two positioning and leveling parts 131 need to withdraw from the leveling position respectively, otherwise the film-laminating device 3 cannot apply film to the battery module 300, so the two positioning clamps are both movable settings.

[0202] In this embodiment, by setting two positioning and leveling parts 131, the positioning and leveling structure 13 can level both sides of the battery module 300 in the width direction so that the sides of the battery module 300 are flush, and the two positioning and leveling parts 131 can also be withdrawn from the leveling position respectively, so that the film can be applied to both sides of the width direction of the battery module 300 separately later.

[0203] Please continue to refer to Figure 2. In some embodiments of the present application, the battery positioning device 1 includes a positioning lifting structure 14, which is used to drive the battery module 300 to move along the third direction to the film laminating station. The positioning base 11 includes a positioning base body 111 and two positioning leveling bases 113 movably installed on the positioning base 11 along the third direction. The two positioning leveling parts 131 are respectively provided on the two positioning leveling bases 113.

[0204] It should be noted that the battery module 300 is leveled only after it moves upward to the film laminating station. Therefore, in this embodiment, two positioning and leveling seats 113 are provided to enable the two positioning and leveling portions 131 to move upward, so that the positioning and leveling structure 13 can be adapted to the positioning clamping structure to level the battery module 300, so that both sides of the battery module 300 along the width direction can be flush, facilitating the subsequent film laminating of the battery module 300.

[0205] In some embodiments of the present application, the positioning and leveling structure 13 further includes two first positioning and leveling driving devices 132 provided on the positioning base 11 . The two first positioning and leveling driving devices 132 drive and connect the two positioning and leveling parts 131 to drive the positioning and leveling parts 131 to move along the second direction.

[0206] It should be noted that there are many types of first positioning and leveling drive devices 132. For example, the first positioning and leveling device can be a pneumatic cylinder, an oil cylinder, an electric push rod, etc., and the embodiments of the present application do not limit this. Specifically, the first positioning and leveling drive device 132 is a locked pneumatic cylinder so as to accurately control the moving position of the positioning and leveling part 131, thereby accurately controlling the clamping force of the positioning and leveling structure 13, and reducing the possibility of the clamping force being too large or too small. Furthermore, there are many ways to drive the two positioning and leveling parts 131. For example, the two positioning and leveling parts 131 can be driven simultaneously by a drive device, or can be driven separately by two drive devices. The embodiments of the present application do not limit this.

[0207] In this embodiment, if the two positioning and leveling parts 131 are driven by one driving device, an additional transmission structure needs to be set up, and the structure is relatively complicated. Therefore, two first positioning and leveling driving devices 132 are set up to drive the two positioning and leveling parts 131 separately to move, so as to prevent the two positioning and leveling parts 131 from affecting each other.

[0208] In some embodiments of the present application, the positioning and leveling structure 13 also includes a second positioning and leveling drive device provided on the positioning seat body 111, and the second positioning and leveling drive device drives the connected positioning and leveling seat 113 to drive the positioning and leveling seat 113 to move along a third direction, wherein the first positioning and leveling drive device 132 is provided on the positioning mounting seat 112.

[0209] It should be noted that there are many types of second positioning and leveling drive devices. For example, the second positioning and leveling drive device can be a pneumatic cylinder, an oil cylinder, an electric push rod, etc., and the embodiments of the present application do not limit this.

[0210] In this embodiment, a second positioning and leveling drive device is provided to drive the positioning and leveling seat 113 to move so as to adapt to the positioning clamping structure 12, so as to level the battery module 300 at the film laminating station so that both sides of the battery module 300 along the width direction are flush, thereby facilitating the subsequent laminating of the battery module 300.

[0211] Please continue to refer to Figures 2 to 4. In some embodiments of the present application, the battery positioning device 1 includes a positioning base 11 and a positioning jacking structure 14. The positioning jacking structure 14 is provided on the positioning base 11 to drive the battery module 300 to move along the third direction to the film laminating station.

[0212] It should be noted that the positioning and lifting structure 14 can be used to lift the tray 200 loaded with the battery module 300, or it can be used to lift only the battery module 300, etc., and this is not limited in the present embodiment. In addition, in theory, by providing the positioning and clamping structure 12, the battery module 300 can be moved upward to the film laminating station, but this requires a large clamping force. If the clamping force is too small, the battery module 300 will easily fall. If the clamping force on the battery module 300 is too large, it will easily damage the battery module 300. Therefore, the positioning and lifting structure 14 is provided to support the battery module 300 and reduce the clamping force of the positioning and clamping structure 12.

[0213] In this embodiment, a positioning lifting structure 14 is provided to carry the battery module 300, which is conducive to driving the battery to move upward to the film-applying station. Compared with driving the battery module 300 upward by the positioning clamping structure 12, the clamping force of the positioning clamping structure 12 on the battery module 300 can be effectively reduced, thereby reducing the risk of the battery module 300 being damaged due to excessive clamping force.

[0214] Please continue to refer to Figures 4 and 6. In some embodiments of the present application, the positioning jacking structure 14 includes a positioning jacking seat 141 and a positioning jacking driving structure 142. The positioning jacking seat 141 is movably installed on the positioning machine base 11 along the third direction. The positioning jacking seat 141 is used to movably pass through the avoidance hole 230 in the middle of the tray 200. The positioning jacking driving structure 142 is provided on the positioning machine base 11 and is driven and connected to the positioning jacking seat 141 to drive the positioning jacking seat 141 to move along the third direction.

[0215] It should be noted that the positioning jacking seat 141 is mainly used to carry the battery module 300, and its material is various. For example, the positioning jacking seat 141 can be made of metal materials such as iron and aluminum, or polymer materials such as plastic, or inorganic non-metallic materials such as nano-ceramics. As long as it has a certain strength to carry the battery module 300, the embodiment of the present application does not limit this. Furthermore, the positioning jacking drive structure 142 can be a cylinder, an oil cylinder, or an electric push rod, etc., and the embodiment of the present application does not limit this. In particular, the tray 200 is provided with an avoidance hole 230 so that the positioning jacking seat 141 can pass through the tray 200 to directly lift the battery module 300, so that the positioning jacking structure 14 only lifts the battery module 300, so that the battery module 300 can be separated from the tray 200, so as to reduce the load borne by the positioning jacking seat 141.

[0216] In this embodiment, the battery module 300 is loaded on a tray 200 and transferred to the battery positioning device 1 via a conveyor device. The lower portion of the battery module 300 is usually blocked by the tray 200, resulting in the inability to apply film to the lower portion of the battery module 300. Therefore, in this application, a positioning jacking seat 141 is provided to bear the load of the battery module 300, and a positioning jacking drive structure 142 is provided to drive the positioning jacking seat 141 to move in a third direction to separate the battery module 300 from the tray 200, thereby transferring the battery module 300 to the film application station.

[0217] In some embodiments of the present application, the positioning jacking structure 14 also includes a positioning jacking guide structure, which includes a positioning jacking hole and a positioning jacking rod that cooperate with each other. The positioning jacking hole and the positioning jacking rod are respectively arranged on the positioning jacking seat 141 and the positioning machine base 11.

[0218] In this embodiment, mutually cooperating positioning and lifting guide structures are provided so that the positioning and lifting structure 14 can move linearly along the third direction, thereby helping to improve the stability of the positioning and lifting seat 141 .

[0219] Please continue to refer to FIG. 2 and FIG. 3 . In some embodiments of the present application, the battery positioning device 1 further includes a tray positioning structure 15 provided on the positioning base 11 for positioning the tray 200 on the positioning base 11 .

[0220] It should be noted that there are various types of tray positioning structures 15 , for example, the tray positioning structure 15 can be a pin hole positioning structure, or a positioning clamping structure 12 , etc., and the embodiments of the present application do not limit this.

[0221] In this embodiment, the tray positioning structure 15 is provided to position the tray 200 loaded with the battery modules 300 at a preset position so as to facilitate subsequent film application to the battery modules 300 .

[0222] Please continue to refer to Figures 3 and 4. In some embodiments of the present application, the tray positioning structure 15 includes a tray positioning seat 151 and a tray positioning pin 152. The tray positioning seat 151 is movably installed on the positioning machine base 11 along the third direction. The tray positioning pin 152 is provided on the tray positioning seat 151 to pass through the corresponding positioning hole on the pallet 200. The tray 200 positioning drive structure 153 is provided on the positioning machine base 11 and drives the connection tray positioning seat 151 to drive the tray positioning seat 151 to move along the third direction.

[0223] It should be noted that the materials of the tray positioning seat 151 and the tray positioning pin 152 are various. For example, the tray positioning seat 151 and the tray positioning pin 152 can be made of metal materials such as iron and aluminum, or polymer materials such as plastic, or inorganic non-metallic materials such as nano-ceramics. The embodiments of the present application do not limit this. Furthermore, there are various ways to form the tray positioning seat 151 and the tray positioning pin 152. The tray positioning seat 151 and the tray positioning pin 152 can be integrally formed or assembled. The embodiments of the present application do not limit this. Furthermore, the positioning drive structure 153 of the tray 200 can be a pneumatic cylinder, an oil cylinder, an electric push rod, etc. The embodiments of the present application do not limit this.

[0224] In this embodiment, a tray positioning seat 151 is provided to install a tray positioning pin 152. The tray positioning pin 152 is provided to position the tray 200 at a preset positioning position. At the same time, a tray 200 positioning drive structure 153 is provided to drive the tray positioning seat 151 to move. The tray positioning pin 152 can be driven upward to pass through the corresponding positioning hole on the tray 200 to position the tray 200 at the positioning base 11, and can also be driven to move downward so that the tray 200 loaded with the battery module 300 can be transferred to the battery positioning device 1.

[0225] In some embodiments of the present application, a plurality of tray positioning pins 152 are provided, and the plurality of tray positioning pins 152 are spaced apart on the tray positioning seat 151 .

[0226] It should be noted that the number of the tray positioning pins 152 can be one or more, and this embodiment of the present application does not limit this.

[0227] In this embodiment, if there is only one tray positioning pin 152, the tray 200 may rotate and the position of the tray 200 cannot be completely positioned. Therefore, multiple tray positioning pins 152 are provided to reduce the possibility of the tray 200 rotating, so that the tray 200 can be completely positioned on the positioning base 11.

[0228] Please continue to refer to Figures 2, 3 and 5. In some embodiments of the present application, the battery positioning device 1 also includes a cell unlocking structure 16 provided on the positioning base 11. The cell unlocking structure 16 includes a cell unlocking member 161 that can move along a first direction to drive the splint 210 on the tray 200 to move along the first direction toward the outside of the tray 200.

[0229] It should be noted that there are many types of battery cell unlocking parts 161. For example, the battery cell unlocking part 161 can be a battery cell unlocking plate or a battery cell unlocking rod, etc., and this embodiment of the present application does not limit this. There are many materials for the battery cell unlocking part 161. For example, the battery cell unlocking part 161 can be a metal material such as iron, aluminum, or a polymer material such as plastic, or an inorganic non-metallic material such as nano-ceramics, and this embodiment of the present application does not limit this. Among them, the first direction can be the front-to-back direction, or the left-to-right direction, etc., and this embodiment of the present application does not limit this. Specifically, the first direction is the X direction as shown in the figure. In order to facilitate the film application of the battery module 300, the first direction should be consistent with the length extension direction of the battery module 300. In addition, in order to prevent the battery module 300 from being separated from the tray 200 during the transfer process, the tray 200 is usually provided with a clamping structure to clamp the battery module 300 to the tray 200. However, since the lower part of the battery module 300 is usually blocked by the tray 200, the lower part of the battery module 300 cannot be filmed. Therefore, it is necessary to separate the tray 200 from the battery module 300 so that the positioning lifting structure 14 can lift the battery module 300 alone. To separate the tray 200 from the battery module 300, it is necessary to release the clamping lock of the tray 200 on the battery module 300.

[0230] In this embodiment, the battery cell unlocking member 161 is set to be movable so that the battery unlocking member can compress the locking spring 220 on the tray 200, so that the clamping plate 210 can move toward the outside of the tray 200 along the first direction, so as to release the clamping fixation of the battery module 300 by the tray 200, which helps to separate the battery module 300 from the tray 200 later.

[0231] Please continue to refer to Figure 5. In some embodiments of the present application, the battery cell unlocking structure 16 also includes an unlocking mounting seat 162, an unlocking sliding seat 163 and an unlocking driving structure 164. The unlocking mounting seat 162 is slidably installed on the positioning machine base 11 along the first direction, and the unlocking sliding seat 163 is slidably installed on the unlocking mounting seat 162 along the second direction. The battery cell unlocking member 161 is arranged on the unlocking sliding seat 163. The unlocking driving structure 164 includes a first unlocking driving device 1641 arranged between the positioning machine base 11 and the unlocking mounting seat 162, and a second unlocking driving device 1642 arranged between the unlocking mounting seat 162 and the unlocking sliding seat 163. The first unlocking driving device 1641 drives the connection to the unlocking mounting seat 162 to drive the unlocking mounting seat 162 to move along the first horizontal direction, and the second unlocking driving device 1642 drives the connection to the unlocking sliding seat 163 to drive the unlocking sliding seat 163 to move along the second direction, wherein the first direction and the second direction are arranged to intersect.

[0232] It should be noted that the first direction and the second direction can be front-to-back, left-to-right, etc., and the embodiment of the present application does not limit this. For example, the first horizontal direction is front-to-back, and correspondingly, the second horizontal direction is left-to-right, or the first direction is left-to-right, and correspondingly, the second horizontal direction is front-to-back. Specifically, the first direction is the X direction as shown in the figure, and the second direction is the Y direction as shown in the figure. Furthermore, there are many materials for the unlocking sliding seat 163 and the unlocking mounting seat 162. For example, the unlocking sliding seat 163 and the unlocking mounting seat 162 can be metal materials such as iron and aluminum, or polymer materials such as plastics, or inorganic non-metallic materials such as nano-ceramics, and the embodiment of the present application does not limit this. The first unlocking drive device 1641 and the second unlocking drive device 1642 can be a cylinder, an oil cylinder, an electric push rod, etc., and the embodiment of the present application does not limit this.

[0233] In this embodiment, when it is necessary to release the lock of the tray 200 on the battery module 300, the second unlocking driving device 1642 drives the unlocking sliding seat 163 to move in the second direction, thereby driving the battery cell unlocking member 161 to move in the second direction, so that the battery cell unlocking member 161 can be inserted into the tray 200 in the second direction, and then the first unlocking driving device 1641 drives the unlocking mounting seat 162 to move in the first direction, thereby driving the battery cell unlocking member 161 to move in the first direction, so that the battery cell unlocking member 161 can compress the locking spring 220 on the tray 200, so that the tray 200 The clamping plate 210 on the tray 200 can move along the first direction toward the outside of the tray 200, so that the tray 200 releases the clamping lock on the battery module 300. In this way, by setting the unlocking sliding seat 163, the battery cell unlocking member 161 can move along the second direction, and by setting the unlocking mounting seat 162, the battery cell unlocking member 161 can move along the first direction. At the same time, by setting the unlocking driving structure 164, the unlocking mounting seat 162 and the unlocking sliding seat 163 are driven to move, so that the battery cell unlocking member 161 can release the clamping lock of the tray 200 on the battery module 300.

[0234] In some embodiments of the present application, a plurality of battery cell unlocking structures 16 are provided, and the plurality of battery cell unlocking structures 16 are spaced apart along the first direction and / or the second direction to correspond to the plurality of locking springs 220 of the tray 200 .

[0235] In this embodiment, multiple battery cell unlocking structures 16 are provided to compress the corresponding locking springs 220 on the tray 200 so that the clamping plate 210 on the tray 200 can translate, thereby helping the clamping plate 210 on the tray 200 to slide along the first level.

[0236] Please continue to refer to Figure 7. In some embodiments of the present application, the film feeding device 2 includes a feeder base 21, a feeding structure 22, a separation structure 23, a film pulling structure 24 and a cutting structure (not shown in the figure). The feeding structure 22 includes a film feeding tray 221 provided on the feeder base 21, and the film feeding tray 221 is used to install the insulating film roll. The separation structure 23 is provided on the feeder base 21 to separate the insulating film roll into insulating film and release paper. The film pulling structure 24 includes a film pulling base 241 installed on the feeder base 21, and two film pulling clamping parts 242 installed on the film pulling base 241. The spacing between the two film pulling clamping parts 242 is adjustable to clamp or loosen the insulating film. The film pulling base 241 is movably arranged along a first direction to pull the insulating film to the film feeding station. The cutting structure includes a cutting knife provided on the feeder base 21 to cut the insulating film to form the insulating film at the film feeding station.

[0237] It should be noted that the first direction can be front-to-back, left-to-right, etc., and this embodiment of the present application does not limit this. Specifically, the first direction is the X direction as shown in the figure. In addition, the film supply base is mainly used to facilitate the installation of the feeding structure 22, the separation structure 23, the film pulling structure 24, and the cutting structure. Specifically, there are multiple types of separation structures 23. The separation structure 23 can be used to separate the insulating film and the release paper using two separation rollers, or it can be used to separate the insulating film and the release paper using two clamping structures, etc. This embodiment of the present application does not limit this.

[0238] It is understandable that the film-drawing structure 24 can draw out insulating films of different lengths as needed, so that the formed insulating film formed by cutting can be adapted to the film length of the battery module 300. Among them, the film-drawing seat 241 is mainly used to draw out insulating films of the required length. There are many materials. The film-drawing seat 241 can be made of metal alloys such as steel and aluminum alloy, or inorganic non-metallic materials such as nano-ceramics, or polymer materials such as plastic. The embodiments of the present application do not limit this. There are many ways to adjust the spacing between the two film-drawing clamping parts 242. It can be adjusted by the movement of one film-drawing clamping part 242, or by the movement of two film-drawing seats 241. The embodiments of the present application do not limit this. Furthermore, there are many types of cutting knives. The cutting knife can be a machined tool or a laser knife, etc. As long as it can cut the drawn insulating film, the embodiments of the present application do not limit this.

[0239] In this embodiment, a feeder base 21 is provided to install a feed structure 22, a separation structure 23, a film pulling structure 24 and a cutting structure; a feed tray is provided to provide an insulating film roll; a separation structure 23 is provided to separate the insulating film roll into an insulating film and a release paper; a film pulling structure 24 is provided to pull out an insulating film of a target length as needed; a cutting structure is provided to form a molded insulating film of a target length, so that the length of the molded insulating film can be adapted to the film-attaching length of the battery module 300, thereby helping to improve the versatility of the film feeding device 2.

[0240] In some embodiments of the present application, the film supply device 2 further includes a film-pulling clamping structure 25 provided on the feeder base 21 . The film-pulling clamping structure 25 is provided between the film supply tray 221 and the film-pulling structure 24 to fix the insulating film on the feeder base 21 .

[0241] After the film pulling structure 24 pulls out the insulating film, a pulling force is formed between the film pulling structure 24 and the separation structure 23 . If the pulled insulating film is directly cut, the cut insulating film is likely to shrink into a ball toward the separation structure 23 , which is not conducive to subsequent film pulling by the film pulling structure 24 .

[0242] In this embodiment, a film-pulling clamping structure 25 is provided to clamp the insulating film between the separation structure 23 and the film-pulling structure 24, so as to cooperate with the film-pulling structure 24 to clamp the two ends of the insulating film. This not only facilitates the cutting structure to cut the pulled insulating film, but also reduces the probability of the insulating film shrinking into a ball, thereby helping the subsequent film-pulling structure 24 to continue pulling the film.

[0243] In some embodiments of the present application, the film-pulling clamping structure 25 includes two film-pulling clamping parts 251 and a film-pulling clamping driving structure 252. The two film-pulling clamping parts 251 are arranged on the feeder base 21. At least one film-pulling clamping part 251 is a movable film-pulling clamping part. The movable film-pulling clamping part is movably arranged along a third direction to clamp the insulating film to the feeder base 21. The film-pulling clamping driving structure 252 is arranged on the feeder base 21 and drives the movable film-pulling clamping part to drive the movable film-pulling clamping part to move along the third direction.

[0244] It should be noted that the third direction can be the up-down direction, or it can be a direction extending along the up-down direction and having a certain angle with the up-down direction. The embodiment of the present application does not limit this. Specifically, the third direction is the Z direction as shown in the figure. In addition, one of the two film-pulling clamping parts 251 can be a movable film-pulling clamping part, or both can be movable film-pulling clamping parts. The embodiment of the present application does not limit this. Further, the film-pulling clamping drive structure 252 can be a pneumatic cylinder, an oil cylinder, an electric push rod, etc. The embodiment of the present application does not limit this.

[0245] In this embodiment, a film-pulling clamping driving structure 252 is provided to drive the film-pulling movable clamping portion to move, so as to clamp or loosen the insulating film. This does not affect the film-pulling structure 24 and facilitates the cutting structure to cut the insulating film.

[0246] In some embodiments of the present application, the separation structure 23 includes a positioning roller 231 and a winding roller 232. The positioning roller 231 is arranged on the feed machine base 21 and corresponds to the film pulling structure 24. The winding roller 232 is rotatably installed on the feed machine base 21 to separate and wind up the release paper.

[0247] It should be noted that the positioning roller 231 is provided in correspondence with the film-drawing structure 24 so that the separated insulating film is flush with the height of the film-drawing structure 24, facilitating the film-drawing structure 24 to directly draw out the insulating film. Furthermore, the positioning roller 231 can be rotatably mounted on the feeder base 21 or fixedly mounted on the feeder base 21, and this embodiment of the present application does not limit this. However, in order to reduce the film-drawing resistance of the film-drawing structure 24, the positioning roller 231 is rotatably mounted on the feeder base 21. In addition, it is worth noting that the winding roller 232 and the film-drawing structure 24 can operate simultaneously or separately, and this embodiment of the present application does not limit this. However, in order to separate the release paper from the insulating film, the winding roller 232 usually operates synchronously with the film-drawing structure 24 to separate the insulating film roll into the insulating film and the release paper.

[0248] In this embodiment, a positioning roller 231 is provided so that the separated insulating film is flush with the height of the film-pulling structure 24 so that the film-pulling structure 24 can pull the film. At the same time, a winding roller 232 is provided, which can be used to separate the release paper and to wind up the separated release paper.

[0249] In some embodiments of the present application, the feeding structure 22 , the film pulling structure 24 and the cutting structure are correspondingly configured as film supply groups. Two film supply groups are provided and the two film supply groups are installed at intervals on the feeding machine base 21 .

[0250] In this embodiment, two film supply groups are set up so that when the film pasting device 3 absorbs the formed insulating film of one of the film supply groups, the other film supply group can provide the formed insulating film, reducing the possibility of waiting of the film pasting device 3, thereby helping to improve the film supply efficiency of the film supply device 2.

[0251] In some embodiments of the present application, the film supply device 2 further includes a film supply supporting seat 26 movably mounted on the feeder seat 21 along a third direction for supporting the pulled insulating film.

[0252] It should be noted that, in theory, the film pasting device 3 can first absorb the pulled out insulating film and then cut the pulled out insulating film, but this method will take up the time of the film pasting device 3 and reduce the film pasting efficiency.

[0253] In this embodiment, when the film-pulling structure 24 needs to pull the film, the film-supply support seat 26 moves downward to prevent the film-supply support from interfering with the film-pulling structure 24, so that the film-pulling structure 24 can pull out the insulating film. When the film-pulling structure 24 does not need to pull the film, the film-supply support seat 26 moves upward to carry the cut and formed insulating film, making it convenient for the film-sticking device 3 to absorb the formed insulating film.

[0254] In some embodiments of the present application, the film supply device 2 also includes a film supply driving device and a film supply guide structure provided on the feeder base 21. The film supply driving device drives the connected film supply support seat 26 to drive the film supply support seat 26 to move along a third direction. The film supply guide structure includes a film supply slider and a film supply slide rail that slide in cooperation with each other. The film supply slide rail extends along the third direction. The film supply slider and the film supply slide rail are respectively provided on the film supply support seat 26 and the feeder base 21.

[0255] It should be noted that the film supply driving device can be an air cylinder, an oil cylinder, an electric push rod, etc., and the embodiments of the present application do not limit this.

[0256] In this embodiment, a film supply driving device is provided to drive the film supply support seat 26 to move, and a film supply guide structure is provided to enable the film supply support to move linearly along the third direction, thereby helping to improve the stability of the film supply support seat 26.

[0257] Please continue to refer to Figures 8 and 9. In some embodiments of the present application, the film pasting device 3 includes a robotic arm 31, a film pasting mounting seat 32 and an adsorption device 33. The robotic arm 31 has a movable stroke between the film feeding station and the film pasting station. The film pasting mounting seat 32 is installed on the robotic arm 31. The adsorption device 33 is provided on the film pasting mounting seat 32, and is used to absorb the formed insulating film on the film feeding station when the robotic arm 31 is at the film feeding station, and to attach the formed insulating film to the battery module 300 at the film pasting station when the robotic arm 31 is at the film pasting station.

[0258] It should be noted that there are many ways to connect the film mounting base 32 to the robotic arm 31. The film mounting base 32 can be fixedly mounted on the robotic arm 31 or detachably mounted on the robotic arm 31. This embodiment of the present application does not limit this. Furthermore, there are many numbers of adsorption devices 33. It can be one adsorption plate or multiple adsorption plates, etc. This embodiment of the present application does not limit this. In the present application, the adsorption device 33 includes multiple adsorption parts, and the multiple adsorption parts are spaced apart along the length direction of the mounting base. Compared with setting a larger adsorption part, setting multiple adsorption parts can not only ensure the adsorption effect of the adsorption device 33, but also reduce the size of the adsorption part and reduce the load on the robotic arm 31.

[0259] In this embodiment, the film mounting seat 32 is provided so as to provide an adsorption device 33, and the adsorption device 33 is provided so as to adsorb the formed insulating film. At the same time, a robotic arm 31 is provided to switch between the film supply station and the film sticking station so as to attach the formed insulating film at the film supply station to the battery module 300.

[0260] Please continue to refer to Figure 9. In some embodiments of the present application, the film mounting seat 32 includes a film seat body 321, a film movable seat 322 and a film buffer structure 323. The film seat body 321 is installed on the robotic arm 31, and the film movable seat 322 is installed on the film seat body 321 in a direction close to or away from the film seat body 321. The film buffer structure 323 is arranged between the film seat body 321 and the film movable seat 322 to elastically support the film movable seat 322.

[0261] It should be noted that since the film-sticking device 3 needs to attach the formed insulating film to the battery module 300, the film-sticking device 3 needs to abut against the battery module 300 when sticking the film. If the pressure of the film-sticking device 3 is too high, it is easy to damage the battery module 300. If the pressure of the film-sticking device 3 is too low, the insulating film will not be firmly attached and will easily fall off.

[0262] In this embodiment, a film sticking seat body 321 is provided to install the film sticking movable seat 322, and a film sticking buffer structure 323 is provided to elastically support the film sticking movable seat 322, so that the film sticking movable seat 322 and the battery module 300 can form an elastic abutment, which is beneficial to buffering the impact of the film sticking device 3.

[0263] In some embodiments of the present application, the film seat body 321 is provided with a film mounting hole, and the film buffer structure 323 includes a film mounting rod 3231, a film elastic member 3232 and a film elastic member 3232. One end of the film mounting rod 3231 is provided on the film movable seat 322, and the other end is passed through the film mounting hole in a direction close to or away from the film seat body 321. The film elastic member 3232 is sleeved on the outer peripheral side of the film mounting rod 3231 and is located between the film seat body 321 and the film movable seat 322. The elastic adjustment sleeve 3233 is threadedly sleeved on the other end of the film mounting rod 3231 to adjust the distance between the film seat body 321 and the film movable seat 322.

[0264] It should be noted that the film mounting rod 3231 is mainly used to install the film elastic part 3232, which can be made of a variety of materials. The film mounting rod 3231 can be made of metal alloys such as steel and aluminum alloy, or inorganic non-metallic materials such as nano-ceramics, or polymer materials such as plastic. The embodiments of the present application do not limit this. There are many types of film elastic parts 3232. For example, the film elastic part 3232 can be a spring or rubber, etc. The embodiments of the present application do not limit this. There are many types of materials for the elastic adjustment sleeve 3233. The elastic adjustment sleeve 3233 can be made of metal alloys such as steel and aluminum alloy, or polymer materials such as plastic, and the embodiments of the present application do not limit this.

[0265] In this embodiment, a film mounting rod 3231 is provided so that the film elastic member 3232 can be mounted thereon to prevent the film elastic member 3232 from deforming radially along the film mounting rod 3231. The film elastic member 3232 is provided so as to elastically support the film movable seat 322 so that the film device 3 and the battery module 300 can form an elastic abutment. At the same time, an elastic adjustment sleeve 3233 is provided so as to adjust the distance between the film seat body 321 and the film movable seat 322, thereby adjusting the elastic force of the film elastic member 3232.

[0266] In some embodiments of the present application, the film pasting device 3 includes a film pasting pressing roller 34 movably mounted on the film pasting mounting seat 32 along the thickness direction of the film pasting mounting seat 32 .

[0267] It should be noted that when there is no need to press the film on the battery module 300, the film pressing roller 34 moves backward so as to be retracted to the rear side of the adsorption device 33 so as to apply the film to the battery module 300. When there is a need to press the film on the battery module 300, the film pressing roller 34 moves forward so that the film pressing roller 34 protrudes from the adsorption device 33 so as to roll the battery module 300 after the film is applied.

[0268] In this embodiment, the movement of the film pressing roller 34 does not affect the film laminating of the battery module 300 by the film laminating device 3 , and can also roll the film-laminated battery module 300 , thereby helping to improve the film laminating effect of the film laminating device 3 .

[0269] Please continue to refer to FIG. 8 and FIG. 9 . In some embodiments of the present application, the film-sticking device 3 includes a camera device 35 installed on the film-sticking mounting seat 32 . The camera device 35 is electrically connected to the control device.

[0270] It should be noted that the camera device 35 can be set to a structure including a charge coupled device (CCD) camera. For example, when the film pasting device 3 is in the film pasting station, the camera device 35 can take a picture of the length of the battery module 300 at the film pasting station to obtain the target film pasting length of the battery module 300. The control device controls the film pulling structure 24 of the film supply device 2 to pull the film so as to pull out the molded insulating film of the target film pasting length, so that the feeding device can supply the film according to the actual film pasting situation of the battery module 300. When the film pasting device 3 is in the film feeding station, the camera device 35 can take a picture of the molded insulating film at the film feeding station to determine whether the length of the molded insulating film is consistent with the target film pasting length of the battery module 300.

[0271] In this embodiment, by setting up a camera device 35, the length of the battery module 300 at the film-laminating station can be photographed to obtain the target film-laminating length of the battery module 300, so that the film supply structure can supply the insulating film of the target film-laminating length, which is beneficial to improve the accuracy of the film supply of the film supply device 2, and the formed insulating film at the film-laminating station can be photographed to determine whether the length of the formed insulating film is consistent with the target film-laminating length of the battery module 300, thereby helping to improve the film-laminating yield of the film-laminating equipment.

[0272] Based on the above hardware structure, the present application also provides a film laminating method for a battery film laminating device 100 . Please refer to FIG10 , which is a flow chart of the film laminating method provided by the present application.

[0273] The battery film laminating equipment 100 has a film supply station, a lifting station, and a film laminating station arranged in a third direction corresponding to the lifting station. The battery film laminating equipment 100 includes a conveyor line, a battery positioning device 1, a film supply device 2, and a film laminating device 3. The battery positioning device includes a positioning base 11 and a positioning lifting structure 14. The film laminating method includes:

[0274] S20: Positioning step: When the conveyor line transfers the tray 200 loaded with the battery module 300 to the lifting station, the positioning lifting structure 14 is controlled to operate to lift the battery module 300 at the lifting station to the film laminating station;

[0275] It can be understood that the pallet 200 loaded with the battery module 300 is transported by a conveying device, which is used to transfer the battery module 300 on the production line, so as to transport the battery module 300 processed at the upstream station to the film-laminating station, and at the same time transport the battery module 300 that has completed the film-laminating at the film-laminating station to the downstream station.

[0276] S30: film supply step: controlling the film supply device 2 to supply the formed insulating film to the film supply station;

[0277] It can be understood that the film supply device 2 can be only a conveying structure for conveying the formed insulating film, or it can be a combined structure that includes a processing structure for processing the insulating film roll into a formed insulating film and a conveying structure for conveying the formed insulating film. The embodiments of the present application do not limit this.

[0278] S40: Film sticking step: controlling the film sticking device 3 to work, so as to pick up the formed insulating film at the film supply station, and stick the formed insulating film on the battery module 300 at the film sticking station.

[0279] It should be noted that there is no necessary order relationship among the positioning step, the film supply step and the film pasting step. It depends on the activities of the battery positioning device 1, the film supply device 2 and the film pasting device 3. What needs to be guaranteed in the end is that before the film pasting device 3 works, the battery positioning device 1 needs to position the battery module 300 on the film pasting station, and at the same time the film supply device 2 needs to transport the formed insulating film to the film supply station, so that the film supply device 2 can attach the formed insulating film at the film supply station to the battery module 300 on the film pasting station.

[0280] In this embodiment, when the conveying device conveys the tray 200 loaded with the battery module 300 to the film laminating station, the battery positioning device 1 is controlled to work to position the tray 200 loaded with the battery module 300 at the film laminating station, and the film supply device 2 is controlled to work to supply the formed insulating film to the film supply station. At the same time, the film laminating device 3 is controlled to work so as to absorb the formed insulating film at the film supply station and attach it to the battery module 300 at the film laminating station. In this way, by setting up a control device, the battery positioning device 1 is controlled to position the battery module 300 at the film laminating station, and the film supply device 2 is controlled to provide the formed insulating film to the film supply station, and then the film laminating device 3 is controlled to attach the formed insulating film at the film supply station to the battery module 300, thereby improving the degree of automation of the film laminating equipment, overcoming the shortcomings of manual operation, and greatly improving work efficiency and product quality.

[0281] Please refer to FIG11 , which is a flow chart of the film pasting identification step of the film pasting method provided in this application.

[0282] Before step S20, the film applying method further includes a film applying identification step, which includes:

[0283] S11: Acquiring film application information, wherein the film application information includes normal film application information of the tray 200 loaded with battery modules 300 to be applied with film;

[0284] It should be noted that normal film application information refers to the information that the tray 200 is loaded with battery modules 300 and that the battery modules 300 require film application. Since materials delivered to the battery positioning device 1 may be in various situations, such as a tray 200 without battery modules 300, a loaded battery module 300 that does not require film application, or a NG product from the previous station, the film application information of the battery positioning device 1 must be identified so that only battery modules 300 that require film application can enter the positioning step.

[0285] S12: When the film-sticking information is normal, enter the positioning step.

[0286] In this embodiment, when the tray 200 reaches the battery positioning device 1, the film information of the battery module 300 on the tray 200 is determined. When the film information of the battery module 300 loaded on the tray 200 is determined to be normal film information, it means that the battery module 300 needs to be filmed. At this time, the control device controls the tray 200 loaded with the battery module 300 to enter the positioning step so that the battery module 300 that needs to be filmed can be filmed. In this way, before the battery positioning device 1 works, the battery module 300 entering the battery positioning device 1 is identified so that the battery module 300 that needs to be filmed enters the positioning step, thereby effectively improving the filming efficiency of the filming equipment.

[0287] Furthermore, step S11 includes:

[0288] S111: Acquire information of the tray 200, wherein the information of the tray 200 includes information of the first tray 200 on which the battery modules 300 are loaded;

[0289] It should be noted that there are many ways to obtain information about the tray 200, which can be through identification by the camera device 35 or through identification by reading an electronic tag, etc., and this embodiment of the present application does not limit this.

[0290] S112: When the tray 200 information is the first tray 200 information, continue to identify the module information of the battery module 300, wherein the module information includes the first module information of the battery module 300 to be film-applied;

[0291] It should be noted that the first module information refers to the battery module 300 requiring film application. After the tray 200 arrives at the battery positioning device 1, the module information in the electronic tag is read by the reader / writer to obtain the first module information indicating that the battery module 300 in the tray 200 requires film application. Here, the electronic tag can be a radio frequency identification (RFID) chip, which is specifically placed on the bottom surface of the tray 200. In this way, after the tray 200 arrives at the battery positioning device 1, the control device can identify the electronic tag and read the film application information of the battery module 300 in the tray 200.

[0292] It should also be noted that the film information of the battery module 300 in the tray 200 can be sent to the control device by the Manufacturing Execution System (MES). Among them, the MES system is deployed in the host computer or server. Here, the MES system is used to obtain the output information of multiple production equipment, and the output information includes the output time of multiple products produced by the production equipment and the identification used to indicate whether the multiple products are qualified. The MES system includes monitoring of the production process. The production process monitoring of the MES system focuses on the monitoring of material transportation and quality indicators between the production process and the process. It is based on the real-time data of the production process and uses the configuration technology of the MES system to realize real-time monitoring of the production progress, process quality, and material consumption of production areas such as production workshops, power energy workshops, auxiliary material warehouses, and finished product warehouses. When the production process monitoring system detects an abnormality, it can make an alarm according to the pre-set settings. It helps the company's production command and scheduling department to coordinate production, make reasonable scheduling, and improve the rapid response capability of production. Furthermore, MES systems, based on production process monitoring, organize and coordinate production according to the specific production processes of various industries, track production process data, and assess various production indicators. Through data analysis, they optimize production processes, implement planning and tracking, analyze production data, and manage assessments. Managers can gain real-time insights into factory-wide inputs and outputs, optimize production decisions, and minimize production time, errors, and the costs associated with manual and repetitive data entry. Key functions include subsystems such as production planning management, production organization, workshop assessment and personnel management, and production data analysis.

[0293] S113: When the module information is the first module information, determine that the film pasting information is normal film pasting information.

[0294] In this embodiment, after the tray 200 enters the battery positioning device 1, the tray 200 information is obtained to determine whether the tray 200 is loaded with a battery module 300. When it is determined that the tray 200 information is the first tray 200 information, it means that there is another battery module 300 in the tray 200. Then the module information of the battery module 300 is obtained to determine whether the battery module 300 needs to be filmed. When it is determined that the module information is the first module information, it means that the battery module 300 loaded in the tray 200 is a battery module 300 that needs to be filmed. In this way, the normal filming information of the battery module 300 is determined through the tray 200 information and the module information, so as to identify the battery module 300 entering the battery positioning device 1, so that the filming equipment only films the battery modules 300 that need to be filmed, thereby helping to improve the filming efficiency of the filming equipment.

[0295] Please refer to FIG. 12 , which is a flow chart of the positioning step of the film-mounting method provided in this application.

[0296] The battery positioning device 1 includes a positioning clamping structure 12 and a tray positioning structure 15. Step S20 includes:

[0297] S21: After the conveyor line transfers the tray 200 loaded with the battery module 300 to the lifting station, the tray positioning structure 15 is controlled to work to position the battery module 300 at the lifting station, and then the positioning clamping structure 12 is controlled to work to clamp the battery module 300 at the positioning base 11.

[0298] In this embodiment, after the tray 200 enters the battery positioning device 1, the tray positioning structure 15 is first controlled to operate to position the tray 200 loaded with the battery module 300 at a preset positioning position, and then the positioning clamping structure 12 is controlled to work so that after the battery module 300 is positioned at the preset positioning position, the battery module 300 is clamped in the positioning base 11, thereby reducing the risk of movement of the battery module 300 during subsequent film application, thereby facilitating the subsequent film application of the battery module 300.

[0299] Furthermore, the battery positioning device 1 includes a battery cell unlocking structure 16 and a positioning lifting structure and a positioning leveling structure 13. Step S20 further includes:

[0300] S22: After the positioning clamping structure 12 clamps the battery module 300, and before the positioning lifting structure 14 is lifted, the battery cell unlocking structure 16 is controlled to work to drive the clamping plate 210 on the tray 200 to move toward the outside of the tray 200 along the first direction, so that the tray 200 releases the clamping lock on the battery module 300, and after the positioning lifting structure 14 lifts the battery module 300 to the film laminating station, the positioning leveling structure 13 is controlled to work so that the battery module 300 is flush on both sides along the second direction.

[0301] It should be noted that since the battery module 300 is loaded on the tray 200 and moved horizontally to the battery positioning device 1 via the conveying device, if the battery module 300 is directly filmed after being clamped and positioned by the positioning clamping structure 12, the film-applying device 3 may easily interfere with other structures on the positioning base 11. Therefore, the battery module 300 needs to be lifted up in order to apply film to the battery module 300. However, moving the battery module 300 upward to the film-applying station via the positioning clamping structure 12 requires a large clamping force, which may easily damage the battery module 300. At the same time, since the position of the single battery in the battery module 300 may move during the transfer process, the two sides of the battery module 300 along the width direction may not be flush, which in turn affects the film-applying effect of the film-applying device 3.

[0302] In the present application, after the positioning and clamping structure 12 clamps the battery module 300, the battery cell unlocking structure 16 is first controlled to work so that the battery unlocking part can compress the locking spring 220 on the tray 200, so that the clamping plate 210 can move along the first direction toward the outside of the tray 200, so as to release the clamping and fixation of the battery module 300 by the tray 200, and then the positioning and lifting structure 14 is controlled to work so as to carry the battery module 300, which is beneficial to reduce the clamping force of the positioning and clamping structure 12 on the battery module 300, and facilitate the separation of the battery module 300 from the tray 200, and then the positioning and leveling structure 13 is controlled to work to level both sides of the battery module 300 along the width direction so that the subsequent film laminating device 3 can laminarize.

[0303] Please refer to FIG13 , which is a flow chart of the film supply step of the film laminating method provided in the present application.

[0304] The film laminating device 3 includes a camera device 35, and the film supply device 2 includes a separation structure 23, a film pulling structure 24 and a cutting structure. Step S30 includes:

[0305] S31: Control the camera device 35 to take a picture of the battery module 300 to determine the target film length of the battery module 300, then control the film pulling structure 24 and the separation structure 23 to work to separate and pull out the insulating film of the target film length, and then control the cutting structure to work to cut the pulled insulating film to form a shaped insulating film.

[0306] In this embodiment, after the battery module 300 enters the battery positioning device 1, the camera device 35 is controlled to take a picture of the battery module 300 at the film laminating station to obtain the target film laminating length of the battery module 300, and then the film pulling structure 24 and the separation structure 23 are controlled to work to separate the insulating film roll into insulating film and release paper, and pull out the insulating film of the target length, and then the cutting structure is controlled to work to cut the pulled insulating film to form a shaped insulating film of the target length.

[0307] Furthermore, the film supply device 2 further includes a film pulling and clamping structure 25, and the film supply S30 includes:

[0308] S32: After the film-drawing structure 24 draws out the insulating film of the target film-sticking length and before the cutting structure cuts the insulating film, the film-drawing clamping structure 25 is controlled to operate to clamp the drawn insulating film.

[0309] It should be noted that after the film pulling structure 24 pulls out the insulating film, a pulling force is formed between the film pulling structure 24 and the separation structure 23. If the pulled insulating film is directly cut, the cut insulating film will easily shrink into a ball toward the separation structure 23, which is not conducive to the subsequent film pulling by the film pulling structure 24.

[0310] In this embodiment, after the film-pulling structure 24 pulls out the insulating film of the target film length and before the cutting structure cuts, the film-pulling structure 24 is controlled to work and the insulating film between the separation structure 23 and the film-pulling structure 24 is clamped. This not only facilitates the cutting structure to cut the pulled insulating film, but also reduces the probability of the insulating film shrinking into a ball, thereby helping the subsequent film-pulling structure 24 to continue pulling the film.

[0311] Please refer to FIG. 14 , which is a flow chart of the film-sticking steps of the film-sticking method provided in this application.

[0312] The film-sticking device 3 includes a robotic arm 31, a film-sticking mounting seat 32 mounted on the robotic arm 31, and an adsorption device 33 mounted on the film-sticking mounting seat 32. Step S40 includes:

[0313] S41 : Control the robot arm 31 to move to the film supply station, then control the adsorption device 33 to work to adsorb the formed insulating film, and then control the robot arm 31 to move to the film attachment station to attach the formed insulating film to the battery module 300 .

[0314] In this embodiment, the robot arm 31 is first controlled to move to the film supply station to absorb the formed insulating film at the film supply station, and then the robot arm 31 is controlled to move to the film pasting station to attach the formed insulating film to the battery module 300 at the film pasting station.

[0315] Furthermore, the film laminating device 3 further includes a film laminating pressing roller 34, and step S40 further includes:

[0316] S42: After the molded insulating film is attached to the battery module 300, the film pressing roller 34 moves to contact the molded insulating film, and then the robot arm 31 is controlled to move to roll the battery module 300 attached with the molded insulating film.

[0317] In this embodiment, after the formed insulating film is attached to the battery module 300, the film pressing roller 34 is first controlled to move so that the film pressing roller 34 protrudes from the adsorption device 33, and then the robotic arm 31 is controlled to move to roll the battery module 300 attached with the formed insulating film, which helps to improve the film laminating effect of the film laminating device 3.

[0318] Please refer to FIG15 , which is a flow chart of the detection steps of the film-applying method provided in this application.

[0319] After step S40, the film application method further includes a detection step, which includes:

[0320] S51: Obtaining an actual film application range on at least one battery module 300;

[0321] It should be noted that there are multiple ways to obtain the actual film application range of the battery module 300, such as through the camera device 35 or laser scanning, and this embodiment of the present application does not limit this. Furthermore, the data of the actual film application range obtained can be one or more, and the specific number can be adjusted as needed, and this embodiment of the present application does not limit this. However, since the camera device 35 is installed on the robotic arm 31, the actual film application range obtained by the camera is significantly affected by the robotic arm 31. In order to avoid data deviation caused by external parameters, multiple actual film application ranges are generally obtained to reduce interference from external factors.

[0322] S52: Determine whether the film application of the battery module 300 meets the requirements based on the actual film application range.

[0323] In this embodiment, after the film is pasted on the battery module 300, it is necessary to determine whether the film pasting of the battery module 300 meets the requirements. Therefore, the actual film pasting range is obtained to determine the film pasting condition of the battery module 300. In this way, by obtaining at least one actual film pasting range, the interference of external factors can be reduced, which is conducive to accurately determining whether the film pasting of the battery module 300 meets the requirements, so as to divert the battery modules 300 to prevent the battery modules 300 with unqualified films from being transferred to subsequent processing stations.

[0324] Furthermore, step S52 includes:

[0325] S521: When at least one actual film application range meets the preset film application range, it is determined that the film application of the battery module 300 meets the requirements;

[0326] S522: When the actual film application range does not meet the preset film application range, manual determination is continued as to whether the film application of the battery module 300 meets the requirements.

[0327] In this embodiment, since the control device is greatly affected by the movement of the robotic arm 31 or the camera device 35 itself when judging the film-sticking condition of the battery module 300, there may be certain misjudgments. Therefore, if any one of the multiple actual film-sticking ranges meets the preset film-sticking range, it means that the film of the battery module 300 meets the requirements. If all the actual film-sticking ranges do not meet the preset film-sticking range, at this time, the film-sticking condition of the battery module 300 is manually judged to reduce the probability of mechanical misjudgment.

[0328] Furthermore, step S522 includes:

[0329] S5221: When it is manually determined that the film of the battery module 300 meets the requirements, it is determined that the film state of the battery module 300 meets the requirements;

[0330] S5222: When it is manually determined that the film of the battery module 300 does not meet the requirements, it is determined that the film of the battery module 300 does not meet the requirements.

[0331] In this embodiment, when it is manually determined that the film of the battery module 300 meets the requirements, it means that the film of the battery module 300 meets the requirements. At this time, it is determined that the film state of the battery module 300 meets the requirements. When it is manually determined that the film of the battery module 300 does not meet the requirements, it means that the film of the battery module 300 does not meet the requirements. At this time, it is determined that the film state of the battery module 300 does not meet the requirements. In this way, the film state of the battery module 300 is first determined mechanically, and then the film state of the battery module 300 is manually determined. This can greatly reduce the workload of manual judgment and reduce work intensity, and can effectively reduce the probability of mechanical or manual misjudgment, which is conducive to accurately determining the film state of the battery module 300.

[0332] Please refer to FIG. 16 , which is a flow chart of the film supply identification step of the film laminating method provided in the present application.

[0333] Before step S40, the film-attaching method further includes a film supply identification step, which includes:

[0334] S61: Acquiring film supply information at the film supply station, wherein the film supply information includes normal film supply information of the formed insulating film meeting the length of the battery module film;

[0335] S62: When the film supply information is normal, enter the film sticking step

[0336] In this embodiment, when a molded insulating film is formed at the film supply station, the film supply information at the film supply station is obtained to determine whether the length of the molded insulating film at the film supply station meets the film length required by the battery module. When the film supply information is determined to be normal film supply information, it means that the length of the molded insulating film at the film supply station meets the film length required by the battery module. In this way, the film supply information is used to identify the length of the molded insulating film at the film supply station to ensure that the length of the imaged insulating film at the film supply station meets the film length required by the battery module, thereby helping to improve the film pass rate of the battery film equipment.

[0337] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0338] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made based on the concept of the present application and the contents of the present application description and drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A battery film sticking device, characterized in that, The battery film - sticking device has a film - supplying station, a jacking station, and a film - sticking station correspondingly arranged in the third direction with respect to the jacking station. The battery film - sticking device includes: A conveying line passing through the jacking station, and the conveying line is used for conveying the battery module to the jacking station; A battery positioning device, including a positioning base and a positioning jacking structure arranged on the positioning base. The positioning jacking structure moves between the jacking station and the film - sticking station, and is used for jacking up the battery module at the jacking station to the film - sticking station; A film - supplying device correspondingly arranged at the film - supplying station, and is used for providing a formed insulating film to the film - supplying station; and, A film - sticking device having a moving stroke between the film - supplying station and the film - sticking station, and is used for picking up the formed insulating film at the film - supplying station and attaching the formed insulating film to the battery module at the film - sticking station; and, A control device electrically connected to the battery positioning device, the film - supplying device, and the film - sticking device, and is used for controlling the actions of the battery positioning device, the film - supplying device, and the film - sticking device; The positioning jacking structure includes: A positioning jacking seat movably installed on the positioning base along the third direction, and the positioning jacking seat is used for movably passing through an avoidance hole in the middle of the tray; and, A positioning jacking driving structure arranged on the positioning base and drivingly connected to the positioning jacking seat, and is used for driving the positioning jacking seat to move along the third direction; The battery positioning device includes a positioning clamping structure. The positioning clamping structure includes two positioning clamping parts spaced along the first direction and installed on the positioning base. At least one of the positioning clamping parts can move along the first direction so that the two positioning clamping parts can clamp and position the battery module at the film - sticking station; The battery positioning device includes a positioning jacking structure for driving the battery module to move along the third direction to the film - sticking station; The positioning base includes a positioning base body and two positioning mounting seats movably installed on the positioning base body along the third direction. The two positioning clamping parts are respectively installed on the two positioning mounting seats.

2. The battery film sticking device according to claim 1, wherein The positioning clamping structure further includes a first positioning clamping driving device arranged on the positioning base, and the first positioning clamping driving device is drivingly connected to the positioning clamping part for driving the positioning clamping part to move along the first direction; 3. The battery film pasting device according to claim 2, characterized in that, The positioning clamping structure further includes a second positioning clamping driving device arranged on the positioning base body, and the second positioning clamping driving device is drivingly connected to the positioning mounting seat for driving the positioning mounting seat to move along the third direction; Wherein, the first positioning clamping driving device is arranged on the positioning mounting seat.

4. The battery film pasting device according to claim 1, wherein, The battery positioning device further includes a positioning flattening structure. The positioning flattening structure includes two positioning flattening parts spaced along the second direction, and each positioning flattening part can move along the second direction so that the two positioning flattening parts can flatten the clamped battery module; Wherein, the first direction and the second direction are intersecting.

5. The battery film pasting device according to claim 4, wherein The battery positioning device includes a positioning lifting structure for driving the battery module to move in the third direction to the film pasting station; The positioning base includes a positioning base body and two positioning flat seats movably installed along the third direction on the positioning base body, and the two positioning flat parts are respectively arranged on the two positioning flat seats.

6. The battery film sticking device according to claim 4, characterized in that, The positioning flat structure further includes two first positioning flat driving devices arranged on the positioning base, and the two first positioning flat driving devices are drivingly connected to the two positioning flat parts for driving the positioning flat parts to move in the second direction.

7. The battery film sticking device according to claim 6, wherein The battery positioning device includes a positioning lifting structure for driving the battery module to move in the third direction to the film pasting station; The positioning base includes a positioning base body and two positioning flat seats movably installed along the third direction on the positioning base body, and the two positioning flat parts are respectively arranged on the two positioning flat seats; The positioning flat structure further includes the second positioning flat driving device arranged on the positioning base body, and the second positioning flat driving device is drivingly connected to the positioning flat seat for driving the positioning flat seat to move in the third direction, wherein the first positioning flat driving device is arranged on the positioning mounting seat.

8. The battery film pasting device according to claim 1, wherein, The battery positioning device further includes a tray positioning structure arranged on the positioning base for positioning the tray on the positioning base.

9. The battery film sticking device according to claim 8, characterized in that, The tray positioning structure includes: A tray positioning seat movably installed along the third direction on the positioning base; A tray positioning pin arranged on the tray positioning seat for passing through a corresponding positioning hole on the tray; and A tray positioning driving structure arranged on the positioning base and drivingly connected to the tray positioning seat for driving the tray positioning seat to move in the third direction.

10. The battery film pasting device according to claim 8, wherein, A plurality of the tray positioning pins are provided, and the plurality of tray positioning pins are spaced apart on the tray positioning seat.

11. The battery film sticking device according to claim 1, wherein The battery positioning device further includes a cell unlocking structure arranged on the positioning base, and the cell unlocking structure includes a cell unlocking member capable of moving in the first direction for driving a clamping plate on the tray to move outward in the first direction with respect to the tray.

12. The battery film sticking device according to claim 11, wherein, The cell unlocking structure further includes: An unlocking mounting seat slidably installed along the first direction on the positioning base; An unlocking sliding seat slidably installed along the second direction on the unlocking mounting seat, and the cell unlocking member is arranged on the unlocking sliding seat; and An unlocking driving structure including a first unlocking driving device arranged between the positioning base and the unlocking mounting seat and a second unlocking driving device arranged between the unlocking mounting seat and the unlocking sliding seat, the first unlocking driving device is drivingly connected to the unlocking mounting seat for driving the unlocking mounting seat to move in the first direction, and the second unlocking driving device is drivingly connected to the unlocking sliding seat for driving the unlocking sliding seat to move in the second direction; Wherein, the first direction and the second direction are intersectingly arranged.

13. The battery film pasting device according to claim 12, characterized in that, A plurality of the cell unlocking structures are provided, and the plurality of cell unlocking structures are spaced apart along the first direction and / or the second direction for respectively corresponding to a plurality of locking springs of the tray.

14. The battery film sticking device according to claim 1, characterized in that, The film supply device includes: A feeding base; A feeding structure, including a film supply reel disposed on the feeding base, and the film supply reel is used for installing an insulating film coil; A separating structure, disposed on the feeding base, for separating the insulating film coil into an insulating film and a release paper; A film pulling structure, including a film pulling base installed on the feeding base and two film pulling clamping parts installed on the film pulling base. The distance between the two film pulling clamping parts is adjustable for clamping or loosening the insulating film. The film pulling base is movably arranged in a first direction for pulling the insulating film to the film supply station; and A cutting structure, including a cutting knife disposed on the feeding base, for cutting the insulating film to form the formed insulating film at the film supply station.

15. The battery film sticking device according to claim 14, characterized in that, The film supply device further includes a film pulling clamping structure disposed on the feeding base. The film pulling clamping structure is disposed between the film supply reel and the film pulling structure for fixing the insulating film to the feeding base.

16. The battery film pasting device according to claim 15, wherein, The film pulling clamping structure includes: Two film pulling clamping parts, disposed on the feeding base. At least one of the film pulling clamping parts is a film pulling movable clamping part, and the film pulling movable clamping part is movably arranged in a third direction for clamping the insulating film to the feeding base; and A film pulling clamping driving structure, disposed on the feeding base and drivingly connected to the film pulling movable clamping part for driving the film pulling movable clamping part to move in the third direction.

17. The battery film pasting device according to claim 16, wherein, The separating structure includes: A positioning roller, disposed on the feeding base and corresponding to the film pulling structure; and A winding roller, rotatably installed on the feeding base for separating and winding the release paper.

18. The battery film pasting device according to claim 14, wherein The feeding structure, the film pulling structure and the cutting structure are correspondingly arranged as a film supply group. There are two film supply groups, and the two film supply groups are installed on the feeding base at intervals.

19. The battery film pasting device according to claim 14, characterized in that The film supply device further includes a film supply bearing seat movably installed on the feeding base in the third direction for bearing the pulled insulating film.

20. The battery film pasting device according to claim 1 or 14, characterized in that, The film pasting device includes: A robotic arm, having a moving stroke between the film supply station and the film pasting station; A film pasting mounting seat, installed on the robotic arm; An adsorption device, disposed on the film pasting mounting seat for sucking the formed insulating film at the film supply station when the robotic arm is at the film supply station, and pasting the formed insulating film on the battery module at the film pasting station when the robotic arm is at the film pasting station.

21. The battery film pasting device according to claim 20, wherein, The film pasting mounting seat includes: A film pasting seat body, installed on the robotic arm; A film pasting movable seat, installed on the film pasting seat body in a direction close to or away from the film pasting seat body; and A film pasting buffer structure, disposed between the film pasting seat body and the film pasting movable seat for elastically supporting the film pasting movable seat.

22. The battery film pasting device according to claim 21, characterized in that, The film pasting seat body is provided with a film pasting mounting hole; The film pasting buffer structure includes: A film pasting mounting rod, one end of which is disposed on the film pasting movable seat and the other end of which passes through the film pasting mounting hole in the direction close to or away from the film pasting seat body; A film pasting elastic member, sleeved on the outer peripheral side of the film pasting mounting rod and located between the film pasting seat body and the film pasting movable seat; and The elastic adjustment sleeve is threadedly sleeved on the other end of the film application mounting rod for adjusting the distance between the film application seat body and the film application movable seat.

23. The battery film laminating device according to claim 20, characterized in that, The film application device includes a film application pressure roller movably installed in the film application mounting seat along the thickness direction of the film application mounting seat.

24. The battery film sticking device according to claim 20, wherein, The film application device includes a camera device installed in the film application mounting seat, and the camera device is electrically connected to the control device.

25. A film pasting method for a battery film pasting device according to any one of claims 1 to 24, characterized in that, The battery film application equipment has a film supply station, a lifting station, and a film application station correspondingly arranged in the third direction with respect to the lifting station. The battery film application equipment includes a conveyor line, a battery positioning device, a film supply device, and a film application device. The battery positioning device includes a positioning base and a positioning lifting structure. The film application method includes: A positioning step: when the conveyor line transfers the tray loaded with the battery module to the lifting station, controlling the positioning lifting structure to work to lift the battery module at the lifting station to the film application station; A film supply step: controlling the film supply device to work to supply a formed insulating film to the film supply station; A film application step: controlling the film application device to work to pick up the formed insulating film at the film supply station and attach the formed insulating film to the battery module at the film application station.

26. The film pasting method according to claim 25, wherein, Before the positioning step, the film application method further includes a film application identification step, and the film application identification step includes: Obtaining film application information, where the film application information includes normal film application information of the tray loaded with the battery module to be film applied; When the film application information is normal film application information, entering the positioning step.

27. The film sticking method according to claim 26, characterized in that, The obtaining of the film application information includes: Obtaining tray information, where the tray information includes first tray information of the tray loaded with the battery module; When the tray information is the first tray information, continuously identifying the module information of the battery module, where the module information includes first module information of the battery module to be film applied; When the module information is the first module information, determining that the film application information is normal film application information.

28. The film sticking method according to claim 25, characterized in that, The battery positioning device includes a positioning clamping structure and a tray positioning structure; The positioning step includes: After the conveyor line transfers the tray loaded with the battery module to the lifting station, controlling the tray positioning structure to work to position the battery module at the lifting station, and then controlling the positioning clamping structure to work to clamp the battery module on the positioning base.

29. The film pasting method according to claim 28, wherein The battery positioning device includes a battery core unlocking structure and a positioning flattening structure; The positioning step further includes: After the positioning clamping structure clamps the battery module and before the positioning lifting structure lifts, controlling the battery core unlocking structure to work to drive the clamping plate on the tray to move outward along the first direction with respect to the outside of the tray, so that the tray releases the clamping lock on the battery module, and after the positioning lifting structure lifts the battery module to the film application station, controlling the positioning flattening structure to work to make both sides of the battery module along the second direction flush.

30. The film pasting method according to claim 25, wherein, The film pasting device includes a camera device, and the film supply device includes a separation structure, a film pulling structure, and a cutting structure; The film supply step includes: Controlling the camera device to take a picture of the battery module to determine the target film pasting length of the battery module, then controlling the film pulling structure and the separation structure to work to separate and pull out the insulating film of the target film pasting length, and then controlling the cutting structure to work to cut the pulled insulating film to form the formed insulating film.

31. The film sticking method according to claim 30, wherein The film supply device further includes a film pulling clamping structure; The film supply step includes: After the film pulling structure pulls out the insulating film of the target film pasting length and before the cutting structure cuts, controlling the film pulling clamping structure to work to clamp the pulled insulating film.

32. The film pasting method according to claim 25, wherein The film pasting device includes a robotic arm, a film pasting mounting seat installed on the robotic arm, and an adsorption device installed on the film pasting mounting seat; The film pasting step includes: Controlling the robotic arm to move to the film supply station, then controlling the adsorption device to work to adsorb the formed insulating film, and then controlling the robotic arm to move to the film pasting station to attach the formed insulating film to the battery module.

33. The film sticking method according to claim 32, characterized in that, The film pasting device further includes a film pasting pressure roller; The film pasting step further includes: After the formed insulating film is attached to the battery module, the film pasting pressure roller moves to abut against the formed insulating film, and then controlling the robotic arm to move to roll-press the battery module with the formed insulating film attached.

34. The film application method according to claim 25, wherein, After the film pasting step, the film pasting method further includes a detection step, and the detection step includes; Obtaining the actual film pasting range on at least one of the battery modules; Determining whether the film pasting of the battery module meets the requirements according to the actual film pasting range.

35. The film pasting method according to claim 34, wherein The determining whether the film pasting of the battery module meets the requirements according to the actual film pasting range includes: When at least one of the actual film pasting ranges meets the preset film pasting range, determining that the film pasting of the battery module meets the requirements; When none of the actual film pasting ranges meet the preset film pasting range, manually continue to determine whether the film pasting of the battery module meets the requirements.

36. The film laminating method according to claim 35, characterized in that, The when none of the actual film pasting ranges meet the preset film pasting range, manually continue to determine whether the film pasting of the battery module meets the requirements includes: When it is manually determined that the film pasting of the battery module meets the requirements, determining that the film pasting state of the battery module meets the requirements; When it is manually determined that the film pasting of the battery module does not meet the requirements, determining that the film pasting of the battery module does not meet the requirements.

37. The film pasting method according to claim 25, wherein, Before the film pasting step, the film pasting method further includes a film supply identification step, and the film supply identification step includes: Obtaining the film supply information at the film supply station, where the film supply information includes the normal film supply information that the formed insulating film meets the film pasting length of the battery module; When the film supply information is normal film supply information, entering the film pasting step.

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