Lithium ion battery tab press fusion welding tool

Abstract

The utility model relates to the technical field of lithium ion batteries, and discloses a lithium ion battery tab press fusion welding tool which comprises a supporting plate and is characterized in that a clamping assembly is arranged on one side of the supporting plate and comprises a supporting base and an upper pressing plate which are oppositely arranged; the supporting base and the upper pressing plate are connected to the two ends of the double-end lead screw in a relative sliding mode, a blowing and sucking device is further arranged on the side edge of the supporting plate and comprises a blowing pipe and a sucking pipe which are fixed to the supporting plate, and the blowing pipe and the sucking pipe are located on the two opposite sides of the supporting base. The multi-layer foil tab welding device has the following advantages and effects that the effective welding area, the welding tension and the temperature influence range of the multi-layer foil tab are controllable, meanwhile, the process steps are reduced, and the generation of metal particles in the welding process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium ion battery technical field especially relates to a lithium ion battery tab pressure melting welding frock. BACKGROUND

[0002] In the lithium battery production process, multilayer foil tab welding usually needs to use ultrasonic welding, laser welding two processes, through ultrasonic welding, multilayer metal material (copper or aluminum) is welded together in advance, and then is welded with tab / lead / pole through ultrasonic welding or laser welding.

[0003] At present, the tab ultrasonic welding and laser welding used at least need two steps, the equipment is put in greatly, and in the manufacturing process, ultrasonic welding can produce metal particles and laser welding can also produce more metal splashing and smoke, and these metal particles have great influence on the cleanliness control in the battery manufacturing process, and increase the risk of battery short circuit and thermal runaway. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of lithium ion battery tab pressure melting welding frock, with guarantee welding effect, reduce process step, the effect of reducing the generation of waste in welding process.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: including support plate, characterized in that: the support plate side is provided with clamping assembly, the clamping assembly includes oppositely arranged support base and upper pressing plate, the support base and upper pressing plate are slidably connected to the both ends of double-end screw rod and slide bar, the support plate side edge is also provided with blowing and suction device, the blowing and suction device includes blowing pipe and suction pipe fixed on support plate, and the blowing pipe and suction pipe are located on the opposite sides of support base.

[0006] The utility model further provides that: the upper pressing plate is L-shaped, the horizontal plate of the upper pressing plate is provided with pressure melting welding printing area, the pressure melting welding printing area is rectangular, and is composed of a plurality of circular pressure melting welding prints.

[0007] The utility model further provides that: the clamping assembly is 2.

[0008] The utility model further provides that: two blowing pipes in two blowing and suction devices are close to each other.

[0009] The utility model further provides that: the number of pressure melting welding prints is at least 8, the pressure melting welding prints are 2-3 rows, and the diameter of single pressure melting welding print is between 1.5-3 mm.

[0010] The further setting of the utility model discloses: the other side of the support plate relative to the clamping assembly is provided with a clamping pneumatic cylinder, the piston rod of the clamping pneumatic cylinder is located above the support plate and the end thereof is connected with a pressing block, and the bottom surface of the pressing block is provided with a flexible layer.

[0011] The further setting of the utility model discloses: the mouth of the air blowing pipe and the air suction pipe is arranged oppositely, and the mouth of the air blowing pipe and the air suction pipe is flush with the upper end surface of the support base.

[0012] The further setting of the utility model discloses: the air blowing pipe and the air suction pipe are connected with the air blowing pump and the air suction pump respectively, and a filter screen is further arranged between the air suction pipe and the air suction pump.

[0013] The further setting of the utility model discloses: one end of the double-end screw rod is fixedly connected with the output shaft of the motor.

[0014] The utility model discloses the beneficial effect is:

[0015] 1, the support plate can place the electric core, and the two tab ears in the electric core are placed between two groups of support base and upper pressing plate respectively, then start the motor, drive the double-end screw rod to rotate, make the support base and upper pressing plate in each group approach each other, finally clamp the two tab ears, when the tab ear is located in the pressure melting welding mark area below the upper pressing plate, then again adopt the pressure melting welding head to align the pressure melting welding mark area and carry out the welding to the tab ear, while, start the air blowing and suction device, can clean the waste gas particle generated in the welding process when cooling, guarantee the welding efficiency and effect.

[0016] 2, the pressure melting welding mark is set as multiple, can guarantee the effective welding area and the welding tension of tab ear to the maximum, promote the welding effect.

[0017] 3, the mouth of the air blowing pipe and the air suction pipe in the air blowing and suction device is flush with the support base, that is, flush with the tab ear that needs to be welded, can improve the effect of air blowing and suction, and two air blowing pipes are close to each other, guarantee that two tab ears do not affect each other when working.

[0018] 4, through setting the pressing cylinder and the pressing block, the electric core during welding is fixed, further guaranteeing the welding effect.

[0019] 5, the whole device is high in degree of automation, saves time and effort. DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained according to these drawings without paying the creative labor for the ordinary skilled in the art.

[0021] Fig. 1 It is a structural diagram of the present utility model.

[0022] Fig. 2 It is a structural schematic diagram of the clamping assembly in the utility model.

[0023] In the figure, 1. Support plate; 2. Support base; 3. Upper pressure plate; 4. Double-ended screw; 5. Blowing pipe; 6. Suction pipe; 7. Pressure welding stamp; 8. Clamping cylinder; 9. Pressure block; 10. Blowing pump; 11. Suction pump; 12. Motor. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0025] Embodiment, a lithium ion battery tab pressure welding tool, such as Figs. 1-2 As shown, it includes a support plate 1, a clamping assembly is provided on one side of the support plate 1, the clamping assembly is 2, the clamping assembly includes a support base 2 and an upper pressure plate 3 relatively provided, the support base 2 and the upper pressure plate 3 are relatively slidably connected to the double-headed screw rod 4 and the two ends of the slide rod, one end of the double-headed screw rod 4 is fixedly connected to the output shaft of the motor 12, and a blowing and suction device is also provided on the side of the support plate 1, the blowing and suction device includes a blowing pipe 5 and a suction pipe 6 fixed on the support plate 1, the blowing pipe 5 and the suction pipe 6 are located on opposite sides of the support base 2, the two blowing pipes 5 in the two blowing and suction devices are close to each other, and the support The battery cells can be placed on the plate 1, and the two tabs in the battery cells can be placed between the two groups of support bases 2 and the upper pressure plate 3 respectively. Then, the motor 12 is started to drive the double-headed screw 4 to rotate, so that the support base 2 and the upper pressure plate 3 in each group are close to each other, and finally the two tabs are clamped. At this time, the tabs are located directly below the pressure-melting weld mark 7 area in the upper pressure plate 3. Then, the pressure-melting welding head is used to align the tabs with the pressure-melting weld mark 7 area to weld them. At the same time, the blowing and suction device is started to cool down and clean the exhaust gas particles generated during the welding process to ensure welding efficiency and effect.

[0026] Furthermore, the upper pressure plate 3 is L-shaped, and a pressure-melting welding mark 7 area is provided on the horizontal plate of the upper pressure plate 3. The pressure-melting welding mark 7 area is rectangular and is composed of multiple circular pressure-melting welding marks 7. The number of pressure-melting welding marks 7 is 9, and the pressure-melting welding marks 7 are in 3 rows. The diameter of a single pressure-melting welding mark 7 is 2 mm. The pressure-melting welding marks 7 are arranged in multiple rows, which can maximize the effective welding area and welding tension of the tabs and improve the welding effect.

[0027] Further, the other side of the support plate 1 of the relative clamping assembly is provided with a clamping cylinder 8, the piston rod of the clamping cylinder 8 is above the support plate 1 and the end thereof is connected with a pressing block 9, the bottom surface of the pressing block 9 is provided with a flexible layer, the battery cell during welding is fixed through the setting of the pressing cylinder and the pressing block 9, and the welding effect is further ensured.

[0028] Further, the pipe orifices of the blowing pipe 5 and the suction pipe 6 are oppositely arranged, the pipe orifices of the two are flush with the upper end surface of the support base 2, the blowing pipe 5 and the suction pipe 6 are respectively connected with a blowing pump 10 and a suction pump 11, and a filter screen is further arranged between the suction pipe 6 and the suction pump 11, the pipe orifices of the blowing pipe 5 and the suction pipe in the blowing and suction device are flush with the support base 2, i.e. flush with the tab to be welded, the blowing and suction effect can be improved, and the two blowing pipes 5 are close to each other, so that the two tabs do not affect each other during work.

[0029] Working principle of a lithium ion battery tab pressure melting welding tool:

[0030] The battery cell can be placed on the support plate 1, and the two tabs in the battery cell are respectively placed between the two groups of support bases 2 and the upper pressing plates 3, then the motor 12 is started to drive the double-head screw rod 4 to rotate, so that the support base 2 and the upper pressing plate 3 in each group are close to each other, and finally the two tabs are clamped, at this time the tabs are located directly below the pressure melting welding mark 7 area in the upper pressing plate 3, then the pressure melting welding head is aligned with the pressure melting welding mark 7 area to weld the tabs, at the same time, the blowing and suction device is started, the waste gas particles generated during the welding process are cleaned at the same time of cooling, and the welding efficiency and effect are ensured.

Claims

1. A lithium ion battery tab fusion welding tooling comprising a support plate (1), characterized in that: The support plate (1) is provided with a clamping assembly on one side, the clamping assembly comprises a support base (2) and an upper pressing plate (3) oppositely arranged, the support base (2) and the upper pressing plate (3) are slidably connected to the two ends of a double-head screw rod (4), and the side edge of the support plate (1) is further provided with a blowing and suction device, the blowing and suction device comprises a blowing pipe (5) and a suction pipe (6) fixed to the support plate (1), and the blowing pipe (5) and the suction pipe (6) are located on the opposite sides of the support base (2).

2. The lithium-ion battery tab fusion welding tool of claim 1, wherein: The upper pressing plate (3) is L-shaped, the horizontal plate of the upper pressing plate (3) is provided with a pressure melting welding mark (7) area, the pressure melting welding mark (7) area is rectangular, and is composed of a plurality of circular pressure melting welding marks (7).

3. The lithium-ion battery tab fusion welding tool of claim 2, wherein: The clamping assembly is 2.

4. The lithium-ion battery tab fusion welding tool of claim 3, wherein: Two blowing pipes (5) in the two blowing and suction devices are close to each other.

5. The lithium-ion battery tab fusion welding tool of claim 2, wherein: The number of the pressure melting welding marks (7) is at least 8, the pressure melting welding marks (7) are arranged in 2-3 rows, and the diameter of a single pressure melting welding mark (7) is between 1.5-3mm.

6. The lithium-ion battery tab fusion welding tool of claim 5, wherein: The other side of the support plate (1) opposite to the clamping assembly is provided with a clamping cylinder (8), the piston rod of the clamping cylinder (8) is located above the support plate (1), and the end portion of the piston rod is connected with a pressing block (9), and the bottom surface of the pressing block (9) is provided with a flexible layer.

7. The lithium-ion battery tab fusion welding tool of claim 6, wherein: The pipe openings of the blowing pipe (5) and the suction pipe (6) are oppositely arranged, and the pipe openings of the two are flush with the upper end surface of the support base (2).

8. The lithium-ion battery tab fusion welding tool of claim 7, wherein: The blowing pipe (5) and the suction pipe (6) are connected with a blowing pump (10) and a suction pump (11) respectively, and a filter screen is further arranged between the suction pipe (6) and the suction pump (11).

9. The lithium-ion battery tab fusion welding tool of claim 8, wherein: One end of the double-head screw rod (4) is fixedly connected with the output shaft of a motor (12).

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