Composite current collector tab structure for battery

Abstract

The utility model relates to the technical field of composite current collector tab structures, and discloses a composite current collector tab structure for a battery, which comprises a tab body, the bottom of the tab body is provided with an adjusting groove, and the inside of the adjusting groove is slidably connected with a sliding block; a sleeve is welded to the bottom end of the sliding block, a sliding groove is formed in the surface of the sleeve, a sliding rod is slidably connected into the sliding groove, a fixing ring is welded to the surface of the sliding rod, a limiting bolt is inserted into the fixing ring, a fixing rod is inserted into the sleeve, and a mounting rod is welded to the surface of the tab body. Through the arrangement of the sliding grooves formed in the surface of the sleeve, position height sliding can be conducted on the fixing ring and the sliding rods on the inner wall, and when the interior of the sleeve is inserted into the interior of the fixing rod, the limiting plug pin can be matched with pushing of the limiting plug pin so that the limiting plug pin can penetrate through the sleeve and extend into the positioning hole; therefore, the stability of connection between the sleeve and the fixing rod is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of SSS, in particular to a composite current collector pole ear structure for a battery. Background Art

[0002] The composite current collector tab structure is a structural design used in battery production, which involves the production of battery current collectors and the welding process of tabs. This structure is designed to improve the energy density and production efficiency of the battery while reducing the complexity and cost of the production process. The current collector body: This is usually a thin metal layer plated on both sides of a polymer film, with aluminum for the positive electrode and copper for the negative electrode.

[0003] Comparative application number 202220816475.8 A composite current collector unit and a composite current collector tab connection structure include a composite current collector and a metal foil, wherein the metal foil includes a first connecting portion for connecting a surface coating on one side of the composite current collector, a second connecting portion for connecting a surface coating on the other side of the composite current collector, and a third connecting portion connecting the first connecting portion and the second connecting portion. By adopting the above technical solution, the first connecting portion and the second connecting portion are respectively connected to the surface coatings on both sides of the composite current collector, and the third connecting portion connects the first connecting portion and the second connecting portion, thereby realizing the connection between the surface coatings on both sides of the composite current collector. Since the thickness of the metal foil is relatively low and the mass is relatively small, the use of metal foil to connect the composite current collector can improve the energy density of the battery and reduce the weight of the battery. The third connecting portion is a square foil, and the first connecting portion and the second connecting portion are connected to the same side of the third connecting portion. The connection between the surface coatings on both sides of the composite current collector is realized through the first connecting portion, the second connecting portion and the third connecting portion. The use of metal foil to connect the composite current collector can improve the energy density of the battery and reduce the weight of the battery.

[0004] The composite current collector unit and the composite current collector pole ear connection structure are arranged so that the surface coatings on both sides of the composite current collector are connected through the first connection part, the second connection part and the third connection part. The composite current collector is connected by metal foil to improve the energy density of the battery and reduce the weight of the battery. However, the partition is easily corroded and rusted by moisture in the air after being placed for a long time. Because the number of partitions is set to be multiple, when one partition is rusted, it is not convenient to easily install and disassemble the separate rusted or damaged partition, which increases the production cost when the equipment is used. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a composite current collector tab structure for a battery.

[0006] The utility model is implemented by the following technical scheme: a composite current collector tab structure for a battery, comprising a tab body, an adjustment groove is provided at the bottom of the tab body, and a slider is slidably connected inside the adjustment groove;

[0007] A sleeve is welded to the bottom end of the slider, a sliding groove is provided on the surface of the sleeve, a sliding rod is slidably connected inside the sliding groove, a fixing ring is welded on the surface of the sliding rod, a limiting pin is inserted inside the fixing ring, a fixing rod is inserted inside the sleeve, a mounting rod is welded on the surface of the tab body, a positioning hole is provided on the inner wall of the mounting rod, and a connector is threadedly connected to the inner wall of the fixing rod.

[0008] Through the above technical solution, the number of the limiting pins is set to two, which is convenient for limiting and fixing the sleeve and the fixing rod when the connection is completed.

[0009] As a further improvement of the above solution, a slider is slidably connected inside the tab body, the limit pins are symmetrically distributed with the fixing ring as the center, and the slide rods are symmetrically distributed with the fixing ring as the center.

[0010] As a further improvement of the above solution, a limit pin is inserted into the interior of the fixing rod, and a limit pin is inserted into the interior of the positioning hole.

[0011] As a further improvement of the above solution, the positioning holes are symmetrically distributed with the fixing rod as the center, a mounting rod is inserted into the interior of the sleeve, and the mounting rod is symmetrically distributed with the fixing rod as the center.

[0012] Through the above technical solution, the number of mounting rods is set to four, which facilitates the connection between the fixing rod and the sleeve.

[0013] As a further improvement of the above solution, the slide grooves are symmetrically distributed with the sleeve as the center, and a slide rod is slidably connected inside the slide grooves.

[0014] As a further improvement of the above solution, the slide groove penetrates the slide groove and the fixing ring and extends to the inside of the mounting rod and the positioning hole.

[0015] Through the above technical solution, the number of slide grooves is set to four, which facilitates the lifting and lowering of the position height of the slide rod and the limit latch.

[0016] As a further improvement of the above solution, the positioning holes are symmetrically distributed with the mounting rod as the center, and a connector is provided inside the sleeve.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model provides a sliding groove on the surface of the sleeve, which can slide the fixed ring and the sliding rod on the inner wall to the position height. When the inside of the sleeve is plugged into the inside of the fixing rod, the limiting pin can be pushed to pass through the sleeve and extend to the inside of the positioning hole to ensure the stability of the connection between the sleeve and the fixing rod. By providing the sliding rod on the inner wall of the fixing ring, it can be avoided that when the limiting pin slides on the surface of the sleeve, the limiting effect on the movement of the fixing ring on the surface of the sleeve is avoided. After the sleeve and the fixing rod are fixed, the connecting head on the inner wall of the fixing rod is threadedly rotated, which is convenient for the separate installation and disassembly of the damaged partition.

[0019] The utility model can insert the sleeve first by arranging the installation rod on the surface of the fixed rod, and can move and adjust the internal slider forward and backward by arranging the adjustment groove at the bottom end of the pole ear body, so as to facilitate the adjustment according to the actual required position size, thereby improving the convenience of the overall use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the anatomical structure of the utility model;

[0022] Figure 3 This is an enlarged schematic diagram of the structure at A of the utility model;

[0023] Figure 4 This is a schematic diagram of the explosion structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the utility model when viewed from above.

[0025] Description of main symbols:

[0026] 1. Tab body; 2. Adjustment slot; 3. Slider; 4. Sleeve; 5. Fixing ring; 6. Limiting pin; 7. Slide slot; 8. Connector; 9. Partition; 10. Slide rod; 11. Fixing rod; 12. Mounting rod; 13. Positioning hole. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0028] Example:

[0029] Please combine Figure 1-5A composite current collector tab structure for a battery in this embodiment includes a tab body 1, an adjustment groove 2 is provided at the bottom of the tab body 1, and a slider 3 is slidably connected to the inside of the adjustment groove 2;

[0030] A sleeve 4 is welded to the bottom end of the slider 3, a slide groove 7 is provided on the surface of the sleeve 4, a slide rod 10 is slidably connected inside the slide groove 7, a fixing ring 5 is welded on the surface of the slide rod 10, a limited latch 6 is inserted inside the fixing ring 5, a fixing rod 11 is inserted inside the sleeve 4, a mounting rod 12 is welded on the surface of the tab body 1, a positioning hole 13 is provided on the inner wall of the mounting rod 12, a connector 8 is threadedly connected to the inner wall of the fixing rod 11, and by setting the slide groove 7 provided on the surface of the sleeve 4, the fixing ring 5 and the slide rod 10 on the inner wall can be slid in position and height. When the sleeve 4 is When the interior is plugged into the interior of the fixing rod 11, the limit pin 6 can be pushed through the sleeve 4 to extend to the interior of the positioning hole 13 to ensure the stability of the connection between the sleeve 4 and the fixing rod 11. By setting a sliding rod 10 on the inner wall of the fixing ring 5, it is possible to avoid the limit pin 6 from sliding on the surface of the sleeve 4 to avoid the limiting effect on the movement of the fixing ring 5 on the surface of the sleeve 4. After the sleeve 4 and the fixing rod 11 are fixed, the connecting head 8 on the inner wall of the fixing rod 11 is threadedly rotated, which is convenient for the separate installation and disassembly of the damaged partition 9.

[0031] The number of the limiting latches 6 is set to two, so as to facilitate limiting and fixing the sleeve 4 and the fixing rod 11 when the connection is completed.

[0032] The inside of the tab body 1 is slidably connected with a slider 3 , the limit pins 6 are symmetrically distributed with the fixing ring 5 as the center, and the slide bars 10 are symmetrically distributed with the fixing ring 5 as the center.

[0033] The fixing rod 11 is internally inserted with a limit pin 6 , and the positioning hole 13 is internally inserted with a limit pin 6 .

[0034] The positioning holes 13 are symmetrically distributed with the fixing rod 11 as the center. The installation rod 12 is inserted into the sleeve 4 , and the installation rod 12 is symmetrically distributed with the fixing rod 11 as the center.

[0035] The number of the mounting rods 12 is set to four, so as to facilitate the connection between the fixing rod 11 and the sleeve 4 .

[0036] The slide grooves 7 are symmetrically distributed with the sleeve 4 as the center, and a slide rod 10 is slidably connected inside the slide grooves 7 .

[0037] The slide groove 7 passes through the slide groove 7 and the fixing ring 5 and extends to the inside of the mounting rod 12 and the positioning hole 13. By setting the mounting rod 12 on the surface of the fixing rod 11, the sleeve 4 can be plugged in first, and by setting the adjustment groove 2 at the bottom end of the pole ear body 1, the internal slider 3 can be moved and adjusted in the front and rear position, which is convenient for adjustment according to the actual required position size, thereby improving the convenience of the overall use of the equipment.

[0038] The number of the slide slots 7 is set to four, so as to facilitate the lifting and lowering of the position height of the slide rod 10 and the limit latch 6.

[0039] The positioning holes 13 are symmetrically distributed with the mounting rod 12 as the center, and a connector 8 is arranged inside the sleeve 4 .

[0040] The implementation principle of a composite current collector ear structure for a battery in the embodiment of the present application is as follows: the device is placed in a suitable position, and the sliding groove 7 provided on the surface of the sleeve 4 can be used to slide the fixed ring 5 and the sliding rod 10 on the inner wall at a certain height. When the inside of the sleeve 4 is plugged into the inside of the fixed rod 11, the limiting pin 6 can be pushed to pass through the sleeve 4 and extend to the inside of the positioning hole 13 to ensure the stability of the connection between the sleeve 4 and the fixed rod 11. The sliding rod 10 on the inner wall of the fixing ring 5 can prevent the limiting pin 6 from being stuck in the sleeve 4. When the surface slides, the limiting effect on the movement of the fixing ring 5 on the surface of the sleeve 4 is avoided. After the sleeve 4 and the fixing rod 11 are fixed, the connecting head 8 on the inner wall of the fixing rod 11 is threadedly rotated, which is convenient for the separate installation and disassembly of the damaged partition 9. By setting the installation rod 12 on the surface of the fixing rod 11, the sleeve 4 can be plugged in first, and by setting the adjustment groove 2 at the bottom end of the pole ear body 1, the internal slider 3 can be moved and adjusted in the front and rear position, which is convenient for adjustment according to the actual required separation position size, thereby improving the convenience of the overall use of the equipment.

[0041] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A composite current collector tab structure for a battery, comprising a tab body (1), an adjustment groove (2) being provided at the bottom of the tab body (1), and a slider (3) being slidably connected inside the adjustment groove (2); It is characterized in that A sleeve (4) is welded to the bottom end of the slider (3), a slide groove (7) is provided on the surface of the sleeve (4), a slide rod (10) is slidably connected inside the slide groove (7), a fixing ring (5) is welded to the surface of the slide rod (10), a limit pin (6) is inserted inside the fixing ring (5), a fixing rod (11) is inserted inside the sleeve (4), a mounting rod (12) is welded to the surface of the tab body (1), a positioning hole (13) is provided on the inner wall of the mounting rod (12), and a connector (8) is threadedly connected to the inner wall of the fixing rod (11).

2. A composite current collector tab structure for a battery as claimed in claim 1, characterized in that: The interior of the tab body (1) is slidably connected to a slider (3), the limit pins (6) are symmetrically distributed with the fixing ring (5) as the center, and the slide bars (10) are symmetrically distributed with the fixing ring (5) as the center.

3. A composite current collector tab structure for a battery according to claim 1, characterized in that: A limit pin (6) is inserted into the interior of the fixing rod (11), and a limit pin (6) is inserted into the interior of the positioning hole (13).

4. A composite current collector tab structure for a battery as claimed in claim 3, characterized in that: The positioning holes (13) are symmetrically distributed with the fixing rod (11) as the center, and a mounting rod (12) is inserted into the interior of the sleeve (4), and the mounting rod (12) is symmetrically distributed with the fixing rod (11) as the center.

5. The composite current collector tab structure for a battery according to claim 1, characterized in that: The slide grooves (7) are symmetrically distributed with the sleeve (4) as the center, and a slide rod (10) is slidably connected inside the slide grooves (7).

6. A composite current collector tab structure for a battery as claimed in claim 5, characterized in that: The slide groove (7) penetrates the slide groove (7) and the fixing ring (5) and extends to the inside of the mounting rod (12) and the positioning hole (13).

7. A composite current collector tab structure for a battery as claimed in claim 6, characterized in that: The positioning holes (13) are symmetrically distributed with the mounting rod (12) as the center, and a connecting head (8) is arranged inside the sleeve (4).

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