Special efficient tab welding machine for lithium titanate battery

By designing a special high-efficiency electrode welding machine for lithium titanate batteries including battery cells, side plates, bearing plates, adjustment components and welding components, the problem that existing welding machines cannot weld multiple sets of battery electrodes at the same time is solved, and the effect of efficient welding and cost reduction is achieved.

CN119589242AInactive Publication Date: 2025-03-11ANHUI SAIER NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202411826767.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-03-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing electrode ear welding machines for lithium titanate batteries cannot weld the electrode ears of multiple sets of batteries at the same time, resulting in inefficiency.

Method used

A special high-efficiency electrode welding machine for lithium titanate batteries is designed, including battery cells, side plates, bearing plates, adjustment components and welding components. The adjustment components achieve simultaneous welding of multiple sets of electrodes and reduce costs by driving components.

Benefits of technology

Efficient welding of multiple sets of lithium titanate battery ears has been achieved, which improves working efficiency and reduces costs to a certain extent.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of tab welding, and particularly relates to a special efficient tab welding machine for a lithium titanate battery, which comprises a battery cell and two groups of side plates, a battery cell tab is arranged at one end of the battery cell, an aluminum tab is placed on the surface of the battery cell tab, and a bearing plate is fixedly mounted in the middle between the two groups of side plates; battery cells are placed on the two sides of the bearing plate correspondingly, pressing plates are arranged on the surfaces of the battery cells, a first adjusting assembly used for adjusting the distance between the two sets of pressing plates is arranged on the side plate on the right side, and extrusion assemblies used for extruding aluminum tabs are arranged on the pressing plates. And one side of the aluminum tab is provided with a welding assembly for welding the aluminum tab and the battery cell tab. The lithium titanate battery tab welding device has the advantages that when the tabs of the lithium titanate batteries are welded, the tabs of multiple groups of lithium titanate batteries can be welded at the same time, and then the tabs of the lithium titanate batteries can be efficiently welded.
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Description

Technical Field

[0001] The invention relates to the technical field of pole tab welding, in particular to a special high-efficiency pole tab welding machine for lithium titanate batteries. Background Art

[0002] The tab welding of lithium titanate battery refers to fixing the positive and negative tabs of lithium titanate battery to the battery through welding process, so as to guide the current during charging and discharging. Tabs are the conductive connection points of the positive and negative electrodes of the battery, usually composed of metal strips and films.

[0003] However, the existing lithium titanate battery tab welding machine can only weld the tabs of one group of lithium titanate batteries at a time, and cannot weld the tabs of multiple groups of lithium titanate batteries at the same time, which leads to low efficiency. Therefore, an efficient tab welding machine dedicated to lithium titanate batteries is invented. Summary of the invention

[0004] In view of the above problems and / or the problems existing in the existing high-efficiency pole tab welding machine dedicated to lithium titanate batteries, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a high-efficiency pole ear welding machine dedicated to lithium titanate batteries, which can solve the above-mentioned existing problems.

[0006] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A high-efficiency pole ear welding machine specially designed for lithium titanate batteries comprises a battery cell and two groups of side plates, wherein a battery cell pole ear is provided at one end of the battery cell, an aluminum pole ear is placed on the surface of the battery cell pole ear, a carrying plate is fixedly installed in the middle between the two groups of side plates, battery cells are placed on both sides of the carrying plate, a pressing plate is provided on the surface of the battery cell, a first adjusting component for adjusting the distance between the two groups of pressing plates is provided on the side plate on the right, an extrusion component for extruding the aluminum pole ear is provided on the pressing plate, a welding component for welding the aluminum pole ear to the battery cell pole ear is provided on one side of the aluminum pole ear, and a second adjusting component for adjusting the distance between the two groups of welding components is provided on the side plate on the left.

[0008] As a preferred solution of the high-efficiency tab welding machine for lithium titanate batteries described in the present invention, pads are fixedly installed at both ends of the carrier plate, and battery tabs are placed on the pads.

[0009] As a preferred solution of the high-efficiency tab welding machine for lithium titanate batteries described in the present invention, the first adjustment component includes:

[0010] A first fixing plate, both ends of the side plate on the right side are fixedly mounted with the first fixing plate;

[0011] The first screw rod is rotatably connected between the two sets of first fixing plates through a bearing, and the first screw rod passes through the bearing plate. The thread directions of the two ends of the first screw rod are set to be opposite starting from the middle.

[0012] As a preferred solution of the high-efficiency tab welding machine for lithium titanate batteries described in the present invention, the first adjustment component also includes:

[0013] A first sliding block, both ends of the first screw rod are threadedly connected to the first sliding block, and a pressing plate is fixedly mounted on the first sliding block;

[0014] The first guide rod is fixedly installed between the two groups of first fixing plates, and the first guide rod passes through the bearing plate, and the first sliding block is slidably connected to the first guide rod.

[0015] As a preferred solution of the high-efficiency tab welding machine for lithium titanate batteries described in the present invention, the extrusion assembly includes:

[0016] A first cylinder, with both ends of the pressing plate being fixedly mounted with the first cylinder;

[0017] A first square plate, on which the piston rod of the first cylinder is fixedly mounted;

[0018] A second square plate, the second square plate is fixedly mounted on the first square plate;

[0019] A third party plate, wherein the third party plate is fixedly mounted on the second square plate, and the third party plate is in contact with the aluminum tab;

[0020] Through holes: a plurality of through holes are formed on the third-party board.

[0021] As a preferred solution of the high-efficiency tab welding machine for lithium titanate batteries described in the present invention, the second adjustment component includes:

[0022] A second fixing plate, with the second fixing plate being fixedly mounted on both ends of the side plate on the left side;

[0023] A second screw rod, the second screw rod is rotatably connected between the two sets of second fixing plates through a bearing, and the second screw rod passes through the bearing plate, and the thread directions of the two ends of the second screw rod are set to be opposite starting from the middle;

[0024] A second slider, both ends of the second screw being threadedly connected to the second slider;

[0025] The second guide rod is fixedly installed between the two sets of second fixing plates, and the second guide rod passes through the bearing plate, and the second sliding block is slidably connected to the second guide rod.

[0026] As a preferred solution of the high-efficiency tab welding machine for lithium titanate batteries described in the present invention, the welding assembly includes:

[0027] A support plate, wherein the support plate is fixedly mounted on the second sliding block;

[0028] Welding heads: a plurality of welding heads are arranged on one side of the support plate, and the welding heads can pass through the through holes.

[0029] As a preferred solution of the high-efficiency tab welding machine for lithium titanate batteries described in the present invention, it also includes:

[0030] A driving assembly is used to make the first adjusting assembly or the second adjusting assembly operate separately, and the driving assembly is arranged on the top of the side plate.

[0031] As a preferred solution of the high-efficiency tab welding machine for lithium titanate batteries described in the present invention, the driving component includes:

[0032] A top plate, the top plate being fixedly mounted on the top of the side plates;

[0033] A rotating shaft, the rotating shaft being rotatably connected to the top plate via a bearing;

[0034] A box body, wherein the box body is fixedly mounted on the bottom of the rotating shaft;

[0035] a second cylinder, the second cylinder being fixedly mounted in the box body;

[0036] An extrusion plate, the piston rod of the second cylinder is fixedly mounted with the extrusion plate;

[0037] A servo motor, wherein the servo motor is fixedly mounted on the top of the top plate, and an output shaft of the servo motor is fixedly connected to the rotating shaft;

[0038] The belt pulley is fixedly mounted on the rotating shaft, and the two sets of belt pulleys are connected by belt transmission.

[0039] As a preferred solution of the high-efficiency tab welding machine for lithium titanate batteries described in the present invention, a first screw is provided directly below the extrusion plate on the right, and the opposite ends of the first screw and the extrusion plate are set as end face teeth, and a second screw is provided directly below the extrusion plate on the left, and the opposite ends of the second screw and the extrusion plate are set as end face teeth.

[0040] Compared with existing technologies:

[0041] 1. By placing battery cells at both ends of the carrier plate, by setting a first adjustment component for adjusting the distance between the two groups of pressure plates on the right side plate, and by setting a second adjustment component for adjusting the distance between the two groups of welding components on the left side plate, it is possible to simultaneously weld the pole ears of multiple groups of lithium titanate batteries when welding the pole ears of lithium titanate batteries, thereby enabling efficient welding of the pole ears of lithium titanate batteries;

[0042] 2. By providing a driving component for enabling the first adjusting component or the second adjusting component to operate separately, it is possible to enable the first adjusting component or the second adjusting component to operate separately by investing only one set of motors, thereby reducing the cost investment to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a front view schematic diagram of the structure of the present invention;

[0044] Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0045] Figure 3 For the present invention Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0046] Figure 4 It is a schematic diagram of the structure of the side plate and the load-bearing plate of the present invention;

[0047] Figure 5 This is a schematic diagram of the structure of the welding assembly of the present invention;

[0048] Figure 6 It is a schematic diagram of the structure of the extrusion assembly of the present invention.

[0049] In the figure: side plate 10, bearing plate 11, pad 12, pressing plate 20, first fixed plate 30, first screw 31, first slider 32, first guide rod 33, first cylinder 40, first square plate 41, second square plate 42, third plate 43, through hole 44, support plate 50, welding head 51, second fixed plate 60, second screw 61, second slider 62, second guide rod 63, battery cell 70, battery cell pole ear 71, aluminum pole ear 72, top plate 80, rotating shaft 81, box body 82, second cylinder 83, extrusion plate 84, servo motor 85, pulley 86, belt 87. DETAILED DESCRIPTION

[0050] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0051] The present invention provides a high-efficiency electrode ear welding machine for lithium titanate batteries. Figure 1-Figure 6 , including a battery cell 70 and two groups of side panels 10, one end of the battery cell 70 is provided with a battery cell pole ear 71, the surface of the battery cell pole ear 71 is placed with an aluminum pole ear 72, a carrying plate 11 is fixedly installed in the middle between the two groups of side panels 10, battery cells 70 are placed on both sides of the carrying plate 11, and a pressing plate 20 is provided on the surface of the battery cell 70, a first adjusting component for adjusting the distance between the two groups of pressing plates 20 is provided on the right side panel 10, an extrusion component for extruding the aluminum pole ear 72 is provided on the pressing plate 20, a welding component for welding the aluminum pole ear 72 and the battery cell pole ear 71 is provided on one side of the aluminum pole ear 72, a second adjusting component for adjusting the distance between the two groups of welding components is provided on the left side panel 10, pads 12 are fixedly installed at both ends of the carrying plate 11, and the battery cell pole ear 71 is placed on the pad 12.

[0052] The first adjustment assembly includes: a first fixing plate 30, a first screw rod 31, a first slider 32, and a first guide rod 33;

[0053] The first fixed plates 30 are fixedly installed at both ends of the side plate 10 on the right side, and the first screw 31 is rotatably connected between the two groups of first fixed plates 30 through a bearing, and the first screw 31 passes through the supporting plate 11. The thread directions of the two ends of the first screw 31 are set to be opposite from the middle, and both ends of the first screw 31 are threadedly connected to the first slider 32, and the pressure plate 20 is fixedly installed on the first slider 32, the first guide rod 33 is fixedly installed between the two groups of first fixed plates 30, and the first guide rod 33 passes through the supporting plate 11, and the first slider 32 is slidably connected to the first guide rod 33.

[0054] The extrusion assembly includes: a first cylinder 40, a first square plate 41, a second square plate 42, a third square plate 43, and a through hole 44;

[0055] The first cylinder 40 is fixedly installed at both ends of the pressure plate 20, the piston rod of the first cylinder 40 is fixedly installed on the first square plate 41, the second square plate 42 is fixedly installed on the first square plate 41, and the third party plate 43 is fixedly installed on the second square plate 42, and the third party plate 43 is in contact with the aluminum pole ear 72, and a plurality of through holes 44 are opened on the third party plate 43.

[0056] The second adjustment assembly includes: a second fixing plate 60, a second screw rod 61, a second slider 62, and a second guide rod 63;

[0057] The second fixing plates 60 are fixedly installed at both ends of the side plate 10 on the left side, and the second screw 61 is rotatably connected between the two groups of second fixing plates 60 through a bearing, and the second screw 61 passes through the supporting plate 11. The thread directions of the two ends of the second screw 61 are set to be opposite starting from the middle, and both ends of the second screw 61 are threadedly connected to the second slider 62. The second guide rod 63 is fixedly installed between the two groups of second fixing plates 60, and the second guide rod 63 passes through the supporting plate 11, and the second slider 62 is slidably connected to the second guide rod 63.

[0058] The welding assembly includes: a support plate 50 and a welding head 51;

[0059] The support plate 50 is fixedly mounted on the second sliding block 62 . A plurality of welding heads 51 are disposed on one side of the support plate 50 , and the welding heads 51 can pass through the through holes 44 .

[0060] It also includes: a driving assembly for making the first adjustment assembly or the second adjustment assembly operate separately, and the driving assembly is arranged on the top of the side plate 10;

[0061] The driving assembly includes: a top plate 80, a rotating shaft 81, a box body 82, a second cylinder 83, an extrusion plate 84, a servo motor 85, a pulley 86, and a belt 87;

[0062] The top plate 80 is fixedly mounted on the top of the side plate 10, the rotating shaft 81 is rotatably connected to the top plate 80 through a bearing, the box body 82 is fixedly mounted on the bottom of the rotating shaft 81, the second cylinder 83 is fixedly mounted in the box body 82, the piston rod of the second cylinder 83 is fixedly mounted on the extrusion plate 84, the servo motor 85 is fixedly mounted on the top of the top plate 80, and the output shaft of the servo motor 85 is fixedly connected to the rotating shaft 81, the pulley 86 is fixedly mounted on the rotating shaft 81, and the two sets of pulleys 86 are connected through a belt 87 transmission, a first screw 31 is provided directly below the extrusion plate 84 on the right, and the opposite ends of the first screw 31 and the extrusion plate 84 are set as end face teeth, and a second screw 61 is provided directly below the extrusion plate 84 on the left, and the opposite ends of the second screw 61 and the extrusion plate 84 are set as end face teeth.

[0063] When used, the specific steps are as follows:

[0064] Step 1: The shaft 81 is rotated by the cooperation of the servo motor 85, the pulley 86 and the belt 87;

[0065] Step 2: Place the battery cell 70 on the carrier plate 11, and then use the second cylinder 83 on the right side to make the extrusion plate 84 squeeze the first screw 31 to rotate the first screw 31. When the first screw 31 rotates, the first slider 32 will make the two sets of pressing plates 20 move toward each other until the pressing plates 20 squeeze and fix the battery cell 70. During this process, the battery cell tab 71 will be located on the pad 12.

[0066] Step 3: placing the aluminum pole tab 72 on the battery cell pole tab 71, and then using the first cylinder 40 to squeeze and fix the aluminum pole tab 72 with the third plate 43;

[0067] Step 4: Use the second cylinder 83 on the left side to make the extrusion plate 84 extrude the second screw 61 so that the second screw 61 rotates. When the second screw 61 rotates, the two groups of support plates 50 will move toward each other through the second slider 62 until the welding head 51 passes through the through hole 44 and contacts the aluminum pole ear 72. At this point, the aluminum pole ear 72 can be welded, thereby completing the pole ear welding of the lithium titanate battery.

[0068] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A high-efficiency tab welding machine for lithium titanate batteries, comprising a battery cell (70) and two sets of side plates (10), wherein one end of the battery cell (70) is provided with a battery cell tab (71), and an aluminum tab (72) is placed on the surface of the battery cell tab (71), characterized in that: A carrier plate (11) is fixedly installed in the middle between the two groups of side plates (10), battery cells (70) are placed on both sides of the carrier plate (11), and a pressure plate (20) is provided on the surface of the battery cell (70). The right side plate (10) is provided with a first adjustment component for adjusting the distance between the two groups of pressure plates (20), the pressure plate (20) is provided with an extrusion component for extruding the aluminum pole ear (72), one side of the aluminum pole ear (72) is provided with a welding component for welding the aluminum pole ear (72) and the battery cell pole ear (71), and the left side plate (10) is provided with a second adjustment component for adjusting the distance between the two groups of welding components.

2. A high-efficiency electrode tab welding machine for lithium titanate batteries according to claim 1, characterized in that: Pads (12) are fixedly mounted on both ends of the carrier plate (11), and battery cell tabs (71) are placed on the pads (12).

3. A high-efficiency electrode tab welding machine for lithium titanate batteries according to claim 1, characterized in that: The first adjustment component comprises: A first fixing plate (30), the first fixing plate (30) being fixedly mounted on both ends of the side plate (10) on the right side; A first screw rod (31), the first screw rod (31) is rotatably connected between the two sets of first fixing plates (30) through a bearing, and the first screw rod (31) passes through the bearing plate (11), and the thread directions of the two ends of the first screw rod (31) are arranged to be opposite starting from the middle.

4. A high-efficiency electrode tab welding machine for lithium titanate batteries according to claim 3, characterized in that: The first adjustment component also includes: A first sliding block (32), both ends of the first screw rod (31) are threadedly connected to the first sliding block (32), and a pressing plate (20) is fixedly mounted on the first sliding block (32); A first guide rod (33), wherein the first guide rod (33) is fixedly installed between the two sets of first fixing plates (30), and the first guide rod (33) passes through the bearing plate (11), and the first sliding block (32) is slidably connected to the first guide rod (33).

5. The high-efficiency electrode tab welding machine for lithium titanate batteries according to claim 1, characterized in that: The extrusion assembly comprises: A first cylinder (40), the first cylinder (40) being fixedly mounted on both ends of the pressing plate (20); A first square plate (41), on which the piston rod of the first cylinder (40) is fixedly mounted; A second square plate (42), wherein the second square plate (42) is fixedly mounted on the first square plate (41); A third party plate (43), wherein the third party plate (43) is fixedly mounted on the second square plate (42), and the third party plate (43) is in contact with the aluminum pole ear (72); Through holes (44), a plurality of through holes (44) are provided on the third party plate (43).

6. A high-efficiency tab welding machine for lithium titanate batteries according to claim 1, characterized in that: The second adjustment component comprises: A second fixing plate (60), the second fixing plate (60) being fixedly mounted on both ends of the left side plate (10); A second screw rod (61), the second screw rod (61) is rotatably connected between the two sets of second fixing plates (60) via a bearing, and the second screw rod (61) passes through the bearing plate (11), and the thread directions of the two ends of the second screw rod (61) are arranged to be opposite from the middle; A second sliding block (62), both ends of the second screw rod (61) being threadedly connected to the second sliding block (62); A second guide rod (63), the second guide rod (63) is fixedly installed between the two sets of second fixing plates (60), and the second guide rod (63) passes through the bearing plate (11), and the second sliding block (62) is slidably connected to the second guide rod (63).

7. A high-efficiency electrode tab welding machine for lithium titanate batteries according to claim 6, characterized in that: The welding assembly comprises: A support plate (50), wherein the support plate (50) is fixedly mounted on the second sliding block (62); Welding heads (51), a plurality of welding heads (51) are provided on one side of the support plate (50), and the welding heads (51) can pass through the through holes (44).

8. The high-efficiency electrode tab welding machine for lithium titanate batteries according to claim 1, characterized in that: Also includes: A driving assembly is used to make the first adjusting assembly or the second adjusting assembly operate separately, and the driving assembly is arranged on the top of the side plate (10).

9. A high-efficiency electrode tab welding machine for lithium titanate batteries according to claim 8, characterized in that: The drive assembly comprises: A top plate (80), the top plate (80) being fixedly mounted on the top of the side plate (10); A rotating shaft (81), wherein the rotating shaft (81) is rotatably connected to the top plate (80) via a bearing; A box body (82), wherein the box body (82) is fixedly mounted on the bottom of the rotating shaft (81); A second cylinder (83), the second cylinder (83) being fixedly installed in the box body (82); An extrusion plate (84), the piston rod of the second cylinder (83) is fixedly mounted with the extrusion plate (84); A servo motor (85), wherein the servo motor (85) is fixedly mounted on the top of the top plate (80), and an output shaft of the servo motor (85) is fixedly connected to the rotating shaft (81); The belt pulley (86) is fixedly mounted on the rotating shaft (81), and the two groups of belt pulleys (86) are connected by belt (87).

10. A high-efficiency electrode tab welding machine for lithium titanate batteries according to claim 9, characterized in that: A first screw rod (31) is provided directly below the extrusion plate (84) on the right side, and the opposite ends of the first screw rod (31) and the extrusion plate (84) are provided with end face teeth. A second screw rod (61) is provided directly below the extrusion plate (84) on the left side, and the opposite ends of the second screw rod (61) and the extrusion plate (84) are provided with end face teeth.