A battery string inserting film device

Abstract

The present invention provides a battery string film inserting device, which includes a frame, a moving mechanism, a mounting plate and a plurality of film inserting components, wherein: the moving mechanism is arranged on the frame; the mounting plate is connected to the driving end of the moving mechanism; the plurality of film inserting components are arranged side by side on the mounting plate, and the plurality of film inserting components move synchronously under the drive of the moving mechanism, and each film inserting component is configured to insert a film strip between two adjacent battery cells of a battery string. For the battery string film inserting device of the present invention, a plurality of film inserting components are arranged side by side on the mounting plate, and under the drive of the moving mechanism, it can synchronously insert a plurality of film strips into the battery string, thereby improving the film inserting efficiency and saving labor costs.

Description

Technical Field

[0001] The present invention relates to the field of battery production, and more particularly to a battery string film inserting device. Background Art

[0002] After the battery cells are welded into a string by solder ribbons and then undergo a series of post-treatment processes, they are finally laminated to form a battery module. During this process, at the overlapping positions of adjacent battery cells within the battery string, it is easy to generate hidden cracks and breakages due to excessive rigid extrusion force.

[0003] To alleviate the rigid extrusion force between adjacent battery cells, the traditional solution is to manually insert a film strip (such as an EVA film) into the overlapping position of adjacent battery cells, and then heat the battery string after film insertion to achieve melting and curing of the film strip. The traditional manual film insertion method is inefficient and has high labor costs. Summary of the Invention

[0004] To solve the above technical problems, on the one hand, the present invention provides a battery string film inserting device, and its technical solution is as follows:

[0005] A battery string film inserting device includes a frame, a moving mechanism, a mounting plate, and a plurality of film inserting components, where:

[0006] The moving mechanism is arranged on the frame;

[0007] The mounting plate is connected to the driving end of the moving mechanism;

[0008] A plurality of film inserting components are arranged side by side on the mounting plate, and the plurality of film inserting components move synchronously under the drive of the moving mechanism. Each film inserting component is configured to insert a film strip between two adjacent battery cells of the battery string.

[0009] In the battery string film inserting device of the present invention, a plurality of film inserting components are arranged side by side on the mounting plate. Under the drive of the moving mechanism, it can synchronously insert a plurality of film strips into the battery string, thereby improving the film insertion efficiency and saving labor costs.

[0010] In some embodiments, the moving mechanism includes a lifting mechanism and a translation mechanism, where: the lifting mechanism is used to drive the mounting plate to lift to drive each film inserting component to lift synchronously, and the translation mechanism is used to drive the mounting plate to translate to drive each film inserting component to translate synchronously.

[0011] Under the combined drive of the lifting mechanism and the translation mechanism, each film inserting component in the present invention can achieve synchronous movement in the horizontal and vertical directions, so as to ensure that each film inserting component can synchronously pick up the film strip from the film strip feeding station and insert the picked-up film strip into the battery string at the film insertion station.

[0012] In some embodiments, the lifting mechanism includes a lifting guide rail, a lifting drive mechanism, and a lifting connecting rod, wherein: the lifting guide rail and the lifting drive mechanism are disposed on the frame; the lifting connecting rod is slidably connected to the lifting guide rail via a first slider and is connected to the drive end of the lifting drive mechanism; the mounting plate is connected to the lower end of the lifting connecting rod, and the lifting drive mechanism drives the lifting connecting rod to move up and down along the lifting guide rail to drive the mounting plate to move up and down.

[0013] A lifting mechanism with a simple structure and stable performance is provided. Through the cooperation of the lifting guide rail, the lifting drive mechanism, and the lifting connecting rod, the lifting drive of the mounting plate is realized.

[0014] In some embodiments, the translation mechanism includes a translation guide rail, a rack, and a rotating motor, wherein: the translation guide rail is disposed on the mounting plate, and the lower end of the lifting connecting rod is slidably connected to the translation guide rail via a second slider; the rack is disposed on the mounting plate and is parallel to the translation guide rail; the rotating motor is connected to the frame, and a gear meshing with the rack is provided at the drive end of the rotating motor, and the rotating motor drives the mounting plate to translate via the gear and the rack.

[0015] A translation mechanism with a simple structure and stable performance is provided. Through the cooperation of the translation guide rail, the rack, and the rotating motor, the translation drive of the mounting plate is realized.

[0016] In some embodiments, the film inserting assembly includes a battery string opening mechanism and a film inserting mechanism, wherein: the battery string opening mechanism is used to open two adjacent battery cells on the battery string so as to form a film inserting gap between the overlapping portions of the two adjacent battery cells; the film inserting mechanism is used to insert a film strip into the film inserting gap.

[0017] By arranging the film inserting assembly as a battery string opening mechanism and a film inserting mechanism, the battery string opening mechanism first opens two adjacent battery cells on the battery string to form a film inserting gap, and then the film inserting mechanism inserts the film strip into the film inserting gap, thereby ensuring the film inserting effect of the film inserting assembly.

[0018] In some embodiments, the battery string opening mechanism includes a battery cell pulling-up assembly and a battery cell pressing-down assembly, wherein: the battery cell pulling-up assembly is used to pull up the upper battery cell of two adjacent battery cells, and the battery cell pressing-down assembly is used to press down the lower battery cell of two adjacent battery cells.

[0019] Through the cooperation of the battery cell pulling-up assembly and the battery cell pressing-down assembly, the upper and lower opening of the overlapping portion of two adjacent battery cells is realized.

[0020] In some embodiments, the battery cell pulling-up assembly includes a first lifting drive cylinder and a first suction cup connected to the drive end of the first lifting drive cylinder. The first lifting drive cylinder drives the first suction cup to move up and down to implement the adsorption and pulling of the upper battery cell of two adjacent battery cells.

[0021] The first suction cup is lifted and lowered by the first lifting drive cylinder to adsorb and pull the battery cell stacked on the two adjacent battery cells.

[0022] In some embodiments, the battery cell pressing assembly includes a second lifting drive cylinder and a pressing plate connected to the drive end of the second lifting drive cylinder. The second lifting drive cylinder drives the pressing plate to lift and lower to press the battery cell stacked below the two adjacent battery cells.

[0023] The pressing plate is lifted and lowered by the second lifting drive cylinder to press the battery cell stacked below the two adjacent battery cells.

[0024] In some embodiments, the film inserting mechanism includes a translation drive member and a second suction cup connected to the drive end of the translation drive member. The second suction cup is used to adsorb the film tape, and the translation drive member is used to drive the second suction cup to translate so as to insert the film tape adsorbed on the second suction cup into the film inserting gap.

[0025] The second suction cup is driven to translate by the translation drive member, so that the film tape adsorbed on the second suction cup is inserted into the film inserting gap.

[0026] In some embodiments, the battery string film inserting device further includes a battery string conveyor belt, which is used to convey the battery string to be film inserted to the film inserting station and to output the battery string that has completed film insertion from the film inserting station.

[0027] By providing the battery string conveyor belt, the present invention realizes the automatic loading and unloading of the battery string, and further improves the film inserting efficiency of the present invention. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of the battery string film inserting device of the present invention from the first perspective;

[0029] Figure 2 It is a schematic structural diagram of the battery string film inserting device of the present invention from the second perspective;

[0030] Figure 3 It is a schematic structural diagram of the battery string film inserting device of the present invention from the third perspective;

[0031] Figure 4 It is a partial structural schematic diagram of the battery string film inserting device of the present invention;

[0032] Figures 1 to 4 It includes:

[0033] Frame 10;

[0034] Lifting mechanism 20, lifting guide rail 21, lifting drive mechanism 22, lifting connecting rod 23;

[0035] Translation mechanism 30, translation guide rail 31, rack 32, rotary motor 33;

[0036] Mounting plate 40;

[0037] Film inserting assembly 50, cell pulling-up assembly 51, cell pressing-down assembly 52, film inserting mechanism 53. Specific embodiments

[0038] To make the above objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] After the cells are welded into strings by solder tapes, they undergo a series of post-processing processes and finally form a battery module through lamination. During this process, at the overlapping positions of adjacent cells in the cell string, cracks and damages are likely to occur due to excessive rigid extrusion pressure. To relieve the rigid extrusion pressure between adjacent cells, the traditional solution is to manually insert a film tape (such as an EVA film) into the overlapping position of adjacent cells, and then heat the cell string after film insertion to achieve melting and curing of the film tape. The traditional manual film insertion method is inefficient and has high labor costs.

[0040] In view of this, the present invention provides a cell string film inserting device, which can synchronously insert multiple film tapes into the cell string, thereby improving the film insertion efficiency and saving labor costs.

[0041] As Figures 1 to 3 shown, the cell string film inserting device provided by the embodiment of the present invention includes a frame 10, a moving mechanism, a mounting plate 40, and several groups of film inserting assemblies 50. Specifically:

[0042] The moving mechanism is arranged on the frame 10.

[0043] The mounting plate 40 is connected to the driving end of the moving mechanism.

[0044] Each film inserting assembly is arranged side by side on the mounting plate 40. Driven by the moving mechanism, each film inserting assembly 50 moves synchronously. During the moving process, each film inserting assembly picks up a film tape and inserts the film tape between two adjacent cells on the cell string.

[0045] Figures 1 to 3 In the shown embodiment, four film inserting assemblies 50 are arranged side by side on the mounting plate 40. Therefore, driven by the moving mechanism, the cell string film inserting device can synchronously insert four film tapes into the cell string, thereby improving the film insertion efficiency and saving labor costs. Of course, in other embodiments, two groups, three groups, or other numbers of film inserting assemblies 50 can also be set to achieve synchronous film insertion of other numbers of film tapes.

[0046] Optionally, the moving mechanism includes a lifting mechanism 20 and a translation mechanism 30, where: the lifting mechanism 20 is used to drive the mounting plate 40 to lift, so as to drive each film inserting assembly 50 to lift synchronously; the translation mechanism 30 is used to drive the mounting plate 40 to translate, so as to drive each film inserting assembly 50 to translate synchronously.

[0047] Under the combined drive of the lifting mechanism 20 and the translation mechanism 30, each film inserting assembly 50 can achieve synchronous movement in the horizontal and vertical directions, so as to ensure that each film inserting assembly 50 can pick up the film strip synchronously and insert the picked film strip into the battery string at the film inserting station.

[0048] Optionally, the lifting mechanism 20 includes a lifting guide rail 21, a lifting drive mechanism 22 and a lifting connecting rod 23, where: the lifting guide rail 21 and the lifting drive mechanism 22 are arranged on the frame 10. The lifting connecting rod 23 is slidably connected to the lifting guide rail 21 through a first slider and is connected to the drive end of the lifting drive mechanism 22. The mounting plate 40 is connected to the lower end of the lifting connecting rod 23, and the lifting drive mechanism 22 drives the lifting connecting rod 23 to lift along the lifting guide rail 21 to drive the mounting plate 40 to lift, so as to drive each film inserting assembly 50 to lift synchronously.

[0049] Optionally, the translation mechanism 30 includes a translation guide rail 31, a rack 32 and a rotating motor 33, where: the translation guide rail 31 is arranged on the mounting plate 40, and the lower end of the lifting connecting rod 23 is slidably connected to the translation guide rail 31 through a second slider. The rack 32 is arranged on the mounting plate 40 and is parallel to the translation guide rail 31. The rotating motor 33 is connected to the frame 10, and a gear meshing with the rack 32 is arranged at the drive end of the rotating motor 33. The rotating motor 33 drives the mounting plate to translate through the gear and the rack 32, so as to drive each film inserting assembly 50 to translate synchronously.

[0050] As Figure 4 shown, the film inserting assembly 50 includes a battery string opening mechanism and a film inserting mechanism 53, where: the battery string opening mechanism is used to open two adjacent battery cells on the battery string so as to form a film inserting gap between the overlapping parts of the two adjacent battery cells. The film inserting mechanism 53 is used to insert the film strip into the film inserting gap.

[0051] Optionally, the battery string opening mechanism includes a battery cell pulling-up assembly 51 and a battery cell pressing-down assembly 52, where: the battery cell pulling-up assembly 51 is used to pull up the upper battery cell of the two adjacent stacked battery cells, and the battery cell pressing-down assembly 52 is used to press down the lower battery cell of the two adjacent stacked battery cells.

[0052] Please continue to refer to Figure 4 shown, the detailed film inserting process of the film inserting assembly 50 is as follows:

[0053] Driven by the moving mechanism, each film inserting assembly 50 synchronously moves to the film belt feeding mechanism, and the film inserting mechanisms 53 of each film inserting assembly 50 respectively pick up a film belt from the film belt feeding mechanism.

[0054] Then, driven by the moving mechanism, each film inserting assembly 50 moves to the battery string to be inserted with film, and each film inserting assembly 50 is correspondingly located above a pair of adjacent solar cells. Specifically, in each film inserting assembly 50: the solar cell pulling-up assembly 51 is located above the upper stacked solar cell 101 among the adjacent solar cells, and the solar cell pressing-down assembly 52 is located above the lower stacked solar cell 102 among the adjacent solar cells.

[0055] Subsequently, the solar cell pulling-up assembly 51 pulls up the solar cell 101 upward, and the solar cell pressing-down assembly 52 presses down the solar cell 102 downward. In this way, an inserting film gap is formed between the solar cell 101 and the solar cell 102.

[0056] Finally, the film inserting mechanism 53 inserts the picked-up film belt into the inserting film gap.

[0057] Optionally, the solar cell pulling-up assembly 51 includes a first lifting driving cylinder and a first suction cup connected to the driving end of the first lifting driving cylinder. The first lifting driving cylinder drives the first suction cup to lift and lower to adsorb and pull the upper stacked solar cell 101 among the adjacent solar cells.

[0058] Optionally, the solar cell pressing-down assembly 52 includes a second lifting driving cylinder and a pressing plate connected to the driving end of the second lifting driving cylinder. The second lifting driving cylinder drives the pressing plate to lift and lower to press the lower stacked solar cell 102 among the adjacent solar cells.

[0059] Optionally, the film inserting mechanism 53 includes a translation driving member and a second suction cup connected to the driving end of the translation driving member. The second suction cup is used to adsorb the film belt, and the translation driving member is used to drive the second suction cup to translate, so as to insert the film belt adsorbed on the second suction cup into the inserting film gap.

[0060] Optionally, the battery string film inserting device provided by the embodiment of the present invention further includes a battery string conveyor belt. The battery string conveyor belt is used to convey the battery string to be inserted with film to the film inserting station, and then each film inserting assembly 50 synchronously moves to the film inserting station to insert the film into the battery string. After the film inserting operation is completed, the battery string conveyor belt outputs the battery string after film inserting from the film inserting station to the next station.

[0061] It can be seen that by setting the battery string conveyor belt, during the conveying process of the battery string, the present invention can complete the film inserting of the battery string, thereby further improving the film inserting efficiency.

[0062] The above has described the present invention in sufficient detail with a certain degree of particularity. Those of ordinary skill in the art should understand that the descriptions in the embodiments are merely exemplary, and all changes made without departing from the true spirit and scope of the present invention should fall within the protection scope of the present invention. The scope of protection claimed by the present invention is defined by the claims described, rather than by the above descriptions in the embodiments. Moreover, the embodiments mentioned in this application do not have to be implemented individually, and some embodiments can also be implemented in combination.

Claims

1. A battery string inserting film device, characterized in that, The battery string film inserting device includes a frame, a moving mechanism, a mounting plate, and a plurality of film inserting components, where: The moving mechanism is arranged on the frame; The mounting plate is connected to the driving end of the moving mechanism; The plurality of film inserting components are arranged side by side on the mounting plate, and the plurality of film inserting components move synchronously under the drive of the moving mechanism. Each film inserting component is configured to insert a film strip between two adjacent battery cells of the battery string; The film inserting component includes a battery string opening mechanism and a film inserting mechanism, where: The battery string opening mechanism is used to open the two adjacent battery cells on the battery string so as to form a film inserting gap between the overlapping parts of the two adjacent battery cells; The film inserting mechanism is used to insert the film strip into the film inserting gap; The battery string opening mechanism includes a battery cell upward pulling component and a battery cell downward pressing component, where: The battery cell upward pulling component is used to pull upward the upper battery cell of the two adjacent battery cells in the stack, and the battery cell downward pressing component is used to press downward the lower battery cell of the two adjacent battery cells in the stack.

2. The battery string inserting film device according to claim 1, characterized in that, The moving mechanism includes a lifting mechanism and a translation mechanism, where: the lifting mechanism is used to drive the mounting plate to lift and drive each film inserting component to lift synchronously, and the translation mechanism is used to drive the mounting plate to translate and drive each film inserting component to translate synchronously.

3. The battery string inserting film device according to claim 2, characterized in that, The lifting mechanism includes a lifting guide rail, a lifting driving mechanism, and a lifting connecting rod, where: The lifting guide rail and the lifting driving mechanism are arranged on the frame; The lifting connecting rod is slidably connected to the lifting guide rail through a first slider and is connected to the driving end of the lifting driving mechanism; The mounting plate is connected to the lower end of the lifting connecting rod, and the lifting driving mechanism drives the lifting connecting rod to lift along the lifting guide rail to drive the mounting plate to lift.

4. The battery string inserting film device according to claim 3, wherein, The translation mechanism includes a translation guide rail, a rack, and a rotating motor, where: The translation guide rail is arranged on the mounting plate, and the lower end of the lifting connecting rod is slidably connected to the translation guide rail through a second slider; The rack is arranged on the mounting plate and is parallel to the translation guide rail; The rotating motor is connected to the frame, and a gear meshing with the rack is arranged at the driving end of the rotating motor. The rotating motor drives the mounting plate to translate through the gear and the rack.

5. The battery string inserting film device according to claim 1, wherein, The battery cell upward pulling component includes a first lifting driving cylinder and a first suction cup connected to the driving end of the first lifting driving cylinder. The first lifting driving cylinder drives the first suction cup to lift to adsorb and pull the upper battery cell of the two adjacent battery cells in the stack.

6. The battery string inserting film device according to claim 1, characterized in that, The battery cell downward pressing component includes a second lifting driving cylinder and a pressing plate connected to the driving end of the second lifting driving cylinder. The second lifting driving cylinder drives the pressing plate to lift to press the lower battery cell of the two adjacent battery cells in the stack.

7. The battery string inserting film device according to claim 1, wherein, The film inserting mechanism includes a translation driving member and a second suction cup connected to the driving end of the translation driving member. The second suction cup is used for adsorbing the film strip, and the translation driving member is used for driving the second suction cup to translate so as to insert the film strip adsorbed on the second suction cup into the film inserting gap.

8. The battery string inserting film device according to any one of claims 1 to 7, characterized in that, The battery string film inserting device further includes a battery string conveyor belt. The battery string conveyor belt is used for conveying the battery string to be inserted with film to the film inserting station and for outputting the battery string that has completed film insertion from the film inserting station.

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