A battery separator roll assembly

Abstract

The utility model relates to a kind of battery separator winding assembly, including base sleeve;First sleeve, its movable sleeve is set in the outside of base sleeve and is connected with base sleeve key, the outer wall of first sleeve movably connects multiple support rods, multiple support rods are evenly distributed along the circumference of first sleeve;Second sleeve, its movable sleeve is set in the outside of base sleeve and is connected with base sleeve key, the outer wall of second sleeve is connected with multiple force arms, multiple force arms are evenly distributed along the circumference of second sleeve, multiple force arms and multiple support rods are arranged one by one and correspond to along the axial direction of base sleeve.The utility model reduces the peeling difficulty of separator roll, improves the continuity and efficiency of battery cell recycling operation.

Description

Technical Field

[0001] This utility model relates to the field of battery separator winding technology, and in particular to a battery separator winding assembly. Background Technology

[0002] With the rapid development of the new energy vehicle industry, lithium batteries are being used more and more widely in the field of electric vehicles. As lithium batteries age, the issue of recycling is becoming increasingly prominent. There is a type of battery cell that contains multiple poles and a separator, with the positive and negative poles attached to both sides of the separator. The positive and negative poles have significant recycling value.

[0003] Currently, the method for recycling such battery cells involves continuously winding the diaphragm using a winding mechanism (such as a winding roller) and constantly separating the positive and negative terminals during the winding process. Because the diaphragm surface is sticky, an adhesive force is generated between the diaphragm and the surface of the winding roller. This makes it much more difficult to peel the diaphragm roll off the winding roller in the later stages of the winding process, which restricts the continuity and efficiency of the recycling operation. Summary of the Invention

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problem that peeling the diaphragm roll from the winding roller in the prior art is time-consuming and labor-intensive, which leads to a decrease in the continuity and efficiency of the battery cell recycling operation. In this way, a battery diaphragm winding assembly is provided, which reduces the difficulty of peeling the diaphragm roll and improves the continuity and efficiency of the battery cell recycling operation.

[0005] To solve the above-mentioned technical problems, this utility model provides a battery separator winding assembly, comprising,

[0006] Base sleeve;

[0007] A first sleeve is movably fitted outside the base sleeve and keyed to the base sleeve. Multiple support rods are movably connected to the outer wall of the first sleeve, and the multiple support rods are evenly distributed along the circumference of the first sleeve.

[0008] The second sleeve is movably sleeved outside the base sleeve and keyed to the base sleeve. Multiple levers are connected to the outer wall of the second sleeve. The multiple levers are evenly distributed along the circumference of the second sleeve. The multiple levers and the multiple support rods are arranged one-to-one facing each other along the axial direction of the base sleeve.

[0009] Multiple retractor rods, each of which is movably connected to a support rod and a lever arm disposed opposite each other along the axial direction.

[0010] In one embodiment of the present invention, a limiting plate connected to the first sleeve is further included. The limiting plate is provided with a through hole through which a plurality of the winding rods pass.

[0011] In one embodiment of the present invention, the limiting disk is provided with a plurality of through holes evenly distributed around its center, and the plurality of winding rods pass through the plurality of through holes respectively.

[0012] In one embodiment of the present invention, all of the plurality of through holes are configured as strip-shaped holes extending radially along the limiting disk.

[0013] In one embodiment of the present invention, a pull rod coaxially connected to the limiting plate is further included, the diameter of the pull rod being smaller than the inner diameter of the base sleeve, and the pull rod passing through the base sleeve.

[0014] In one embodiment of the present invention, a first driver is further included to drive the pull rod to move along its axial direction, and the output end of the first driver is movably connected to the pull rod.

[0015] In one embodiment of this utility model, the diameter of the pull rod is smaller than the inner diameter of the first sleeve, and the first sleeve is sleeved on the outside of the pull rod.

[0016] In one embodiment of the present invention, a second driver is further included to drive the base sleeve to rotate.

[0017] In one embodiment of the present invention, the outer wall of the base sleeve is provided with a limiting seat, and the limiting seat is disposed on the side of the second sleeve away from the first sleeve.

[0018] In one embodiment of the present invention, the inner wall of the first sleeve is provided with a first keyway, the inner wall of the second sleeve is provided with a second keyway, and the outer wall of the base sleeve is provided with a third keyway extending along its axial direction. A key is inserted into the first keyway, the second keyway, and the third keyway.

[0019] In one embodiment of this utility model, the plurality of winding rods includes a first winding rod, a second winding rod, and a third winding rod.

[0020] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0021] The battery separator winding assembly of this utility model, by pushing the first sleeve and the second sleeve closer or further apart, drives multiple winding rods to extend and retract radially, thereby tightening or loosening the separator roll, reducing the adhesion force between the separator roll and the winding rods, and reducing the difficulty of peeling the separator roll; using winding rods with smaller diameters to wind the separator reduces the contact area between the separator roll and the winding rods, further reducing the adhesion force between the separator roll and the winding rods; by setting multiple winding rods, the separator winding action is uniform and stable, reducing the shaking amplitude of the separator roll and equipment vibration; the first sleeve is keyed to the base sleeve, and the second sleeve is keyed to the base sleeve, which can transmit torque to the first sleeve and the second sleeve, realizing synchronous rotation of the three; the first sleeve and the second sleeve can also slide relative to the base sleeve, causing the multiple winding rods to converge or spread. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the battery separator winding assembly in a preferred embodiment of the present invention;

[0024] Figure 2 for Figure 1 The side view shown is of the battery separator winding assembly excluding the protective cover.

[0025] Figure 3 for Figure 1 The diagram shows the structure of the battery separator winding assembly excluding the mounting base, protective cover, and second driver.

[0026] Figure 4 for Figure 1 The diagram shows the structure of the battery separator winding assembly excluding the mounting base, protective cover, limiting plate, and second driver.

[0027] Figure 5 for Figure 1 The diagram shows the structure of the base sleeve.

[0028] Figure 6 for Figure 3 The diagram shows the structure of the first sleeve.

[0029] Figure 7 for Figure 3 The diagram shows the structure of the second sleeve.

[0030] Explanation of reference numerals in the accompanying drawings: 1. Base sleeve; 11. Third keyway; 12. Limiting seat; 2. Second sleeve; 21. First support rod; 22. Second support rod; 23. Third support rod; 24. First connecting part; 25. Second connecting part; 26. Third connecting part; 27. First keyway; 28. First threaded hole; 3. Second sleeve; 31. First lever arm; 32. Second lever arm; 33. Third lever arm; 34. Second keyway; 41. First winding rod; 42. Second winding rod; 43. Third winding rod; 5. Pull rod; 51. Second threaded hole; 6. Limiting plate; 61. First through hole; 62. Second through hole; 63. Third through hole; 7. First actuator; 71. Claw; 72. Ball bearing; 8. Fixed seat; 9. Second actuator; 10. Protective cover. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0032] Reference Figure 1 , Figure 2 and Figure 3 As shown, in one embodiment of this utility model, a battery separator winding assembly is disclosed, comprising:

[0033] Base sleeve 1;

[0034] The first sleeve 2 is movably sleeved outside the base sleeve 1 and keyed to the base sleeve 1. Multiple support rods are movably connected to the outer wall of the first sleeve 2, and the multiple support rods are evenly distributed along the circumference of the first sleeve 2.

[0035] The second sleeve 3 is movably sleeved outside the base sleeve 1 and keyed to the base sleeve 1. The outer wall of the second sleeve 3 is connected with multiple lever arms, which are evenly distributed along the circumference of the second sleeve 3. The multiple lever arms and the multiple support rods are arranged one-to-one facing each other along the axial direction of the base sleeve 1.

[0036] Multiple retractor rods, each of which is movably connected to a support rod and a lever arm disposed opposite each other along the axial direction.

[0037] The battery separator winding assembly described in this embodiment, by pushing the first sleeve 2 and the second sleeve 3 closer or further apart, drives multiple winding rods to extend and retract radially, thereby tightening or loosening the separator roll, reducing the adhesion force between the separator roll and the winding rods, and reducing the difficulty of peeling the separator roll; using winding rods with smaller diameters to wind the separator can reduce the contact area between the separator roll and the winding rods, further reducing the adhesion force between the separator roll and the winding rods; by setting multiple winding rods, the separator winding action is uniform and stable, reducing the shaking amplitude of the separator roll and equipment vibration; the first sleeve 2 is keyed to the base sleeve 1, and the second sleeve 3 is keyed to the base sleeve 1. The base sleeve 1 can transmit torque to the first sleeve 2 and the second sleeve 3, realizing synchronous rotation of the three. The first sleeve 2 and the second sleeve 3 can also slide relative to the base sleeve 1, causing the multiple winding rods to converge or spread.

[0038] Reference Figure 5 As shown, in one embodiment of this utility model, the base sleeve 1 is configured as a tube.

[0039] Reference Figure 3 As shown, in one embodiment of this utility model, it further includes a pull rod 5 and a limiting disk 6 coaxially connected to the pull rod 5. The diameter of the pull rod 5 is smaller than the inner diameter of the base sleeve 1. The pull rod 5 passes through the base sleeve 1. The limiting disk 6 is connected to the first sleeve 2. By axially pulling the pull rod 5, the connecting rod drives the first sleeve 2 to move closer to or away from the second sleeve 3, thereby realizing the radial convergence or expansion of multiple winding rods. The limiting disk 6 is provided with a through hole through which multiple winding rods pass. When the diaphragm is wound on multiple winding rods, the limiting disk 6 limits the diaphragm roll, ensuring that the diaphragm is always wound in the middle of the winding rod.

[0040] Reference Figure 3 As shown, in one embodiment of this utility model, the limiting disk 6 is provided with three through holes evenly distributed around its center. The three through holes are a first through hole 61, a second through hole 62, and a third through hole 63. The plurality of winding rods are a first winding rod 41, a second winding rod 42, and a third winding rod 43. The first winding rod 41 passes through the first through hole 61, the second winding rod 42 passes through the second through hole 62, and the third winding rod 43 passes through the third through hole 63.

[0041] Reference Figure 3 As shown, in one embodiment of this utility model, the multiple support rods are a first support rod 21, a second support rod 22, and a third support rod 23. The first support rod 21 is rotatably connected to the first winding rod 41, the second support rod 22 is rotatably connected to the second winding rod 42, and the third support rod 23 is rotatably connected to the third winding rod 43.

[0042] Reference Figure 3As shown, in one embodiment of the present invention, the outer wall of the first sleeve 2 protrudes to form a plurality of connecting parts, which are evenly distributed along the circumference of the first sleeve 2. The plurality of connecting parts are a first connecting part 24, a second connecting part 25 and a third connecting part 26, wherein the first connecting part 24 is rotatably connected to the first support rod 21, the second connecting part 25 is rotatably connected to the second support rod 22, and the third connecting part 26 is rotatably connected to the third support rod 23.

[0043] Reference Figure 3 As shown, in one embodiment of this utility model, the plurality of lever arms are respectively a first lever arm 31, a second lever arm 32, and a third lever arm 33. The first lever arm 31 is rotatably connected to the first winding rod 41, the second lever arm 32 is rotatably connected to the second winding rod 42, and the third lever arm 33 is rotatably connected to the third winding rod 43. The first lever arm 31 is arranged directly opposite the first support rod 21 along the axial direction, the second lever arm 32 is arranged directly opposite the second support rod 22 along the axial direction, and the third lever arm 33 is arranged directly opposite the third support rod 23 along the axial direction.

[0044] Reference Figure 3 As shown, in one embodiment of this utility model, all of the through holes are configured as strip-shaped holes extending radially along the limiting disk 6. The strip-shaped holes provide clearance for the retracting rod to converge or expand radially, thereby preventing interference between the retracting rod and the limiting disk 6.

[0045] Reference Figure 3 As shown, in one embodiment of this utility model, a first driver 7 is further included to drive the pull rod 5 to move along its axial direction, thereby realizing the automatic convergence or expansion of multiple winding rods and improving winding efficiency. The first driver 7 is preferably a cylinder. The output end of the first driver 7 is movably connected to the pull rod 5. The pull rod 5 can not only be driven to move axially by the first driver 7, but also rotate relative to the first driver 7 under the drive of the base sleeve 1, thereby realizing the continuous rotation of the base sleeve 1 and thus realizing the continuous rotation of multiple winding rods.

[0046] Reference Figure 3 As shown, in one embodiment of this utility model, the output end of the first driver 7 is connected to a claw 71, the claw 71 clamps the outer ring of the ball bearing 72, and the inner ring of the ball bearing 72 is interference-fitted with the pull rod 5.

[0047] Reference Figure 3 As shown, in one embodiment of this utility model, the diameter of the pull rod 5 is smaller than the inner diameter of the first sleeve 2, and the first sleeve 2 is sleeved on the outside of the pull rod 5.

[0048] Reference Figure 1 As shown, in one embodiment of this utility model, a second driver 9 is further included to drive the base sleeve 1 to rotate, thereby realizing multiple winding rods. The second driver 9 is preferably a motor.

[0049] Reference Figure 3 As shown, in one embodiment of the present invention, the outer wall of the base sleeve 1 is provided with a limiting seat 12. The limiting seat 12 is disposed on the side of the second sleeve 3 away from the first sleeve 2. The limiting seat 12 is used to limit the second sleeve 3. When the second sleeve 3 abuts against the limiting seat 12, the multiple winding rods are in a parallel state.

[0050] Reference Figure 5 , Figure 6 and Figure 7 As shown, in one embodiment of the present invention, the inner wall of the first sleeve 2 is provided with a first keyway 27, the inner wall of the second sleeve 3 is provided with a second keyway 34, and the outer wall of the base sleeve 1 is provided with a third keyway 11 extending along its axial direction. A key is inserted into the first keyway 27, the second keyway 34, and the third keyway 11 to achieve circumferential positioning of the three. The first sleeve 2 and the second sleeve 3 can slide on the base sleeve 1 along the key.

[0051] Reference Figure 3 As shown, in one embodiment of this utility model, the lengths of the first winding rod 41, the second winding rod 42, and the third winding rod 43 are all equal, and the ends of the first winding rod 41, the second winding rod 42, and the third winding rod 43 are aligned to ensure that they are subjected to symmetrical forces.

[0052] Reference Figure 1 As shown, in one embodiment of this utility model, it further includes a fixed base 8, a protective cover 10 that is fitted over the first sleeve 2, the second sleeve 3, and multiple support rods, the protective cover 10 being fixedly connected to the fixed base 8, and the first driver 7 and the second driver 9 being both mounted on the fixed base 8.

[0053] Reference Figure 1 As shown, in one embodiment of the present invention, the first sleeve 2 is provided with a first threaded hole 28 at its end, and the first sleeve 2 is fixedly connected to the limiting plate 6 through the second threaded hole 28 and screws; the pull rod 5 is provided with a second threaded hole 51 at its end, and the pull rod 5 is fixedly connected to the limiting plate 6 through the second threaded hole 51 and screws.

[0054] The working principle of the battery separator winding assembly described in this utility model is as follows:

[0055] Before winding, adjust the three winding rods to be parallel to each other, then wind one end of the diaphragm onto the three winding rods. Subsequently, the second driver 9 drives the three winding rods to rotate continuously to wind the diaphragm. After winding is completed, the three winding rods stop rotating, the first driver 7 pulls the pull rod 5, and the pull rod 5 pulls the first sleeve 2 close to the second sleeve 3. The three winding rods converge radially, the diaphragm roll loses support, becomes loose, and finally separates from the three winding rods, thus peeling off the diaphragm roll.

[0056] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A battery separator winding assembly, characterized in that, include, Base sleeve; A first sleeve is movably fitted outside the base sleeve and keyed to the base sleeve. Multiple support rods are movably connected to the outer wall of the first sleeve, and the multiple support rods are evenly distributed along the circumference of the first sleeve. The second sleeve is movably sleeved outside the base sleeve and keyed to the base sleeve. Multiple levers are connected to the outer wall of the second sleeve. The multiple levers are evenly distributed along the circumference of the second sleeve. The multiple levers and the multiple support rods are arranged one-to-one facing each other along the axial direction of the base sleeve. Multiple retractor rods, each of which is movably connected to a support rod and a lever arm disposed opposite each other along the axial direction.

2. The battery separator winding assembly according to claim 1, characterized in that, It also includes a limiting plate connected to the first sleeve, the limiting plate having a through hole through which a plurality of the winding rods pass.

3. A battery separator winding assembly according to claim 2, characterized in that, The limiting plate has a plurality of through holes evenly distributed around its center, and the plurality of winding rods pass through the plurality of through holes respectively.

4. A battery separator winding assembly according to claim 3, characterized in that, All of the aforementioned through holes are configured as strip-shaped holes extending radially along the limiting disk.

5. A battery separator winding assembly according to claim 2, characterized in that, It also includes a pull rod coaxially connected to the limiting plate, the diameter of the pull rod being smaller than the inner diameter of the base sleeve, and the pull rod passing through the base sleeve.

6. A battery separator winding assembly according to claim 5, characterized in that, It also includes a first driver that drives the pull rod to move along its axial direction, and the output end of the first driver is movably connected to the pull rod.

7. A battery separator winding assembly according to claim 5, characterized in that, The diameter of the pull rod is smaller than the inner diameter of the first sleeve, and the first sleeve is fitted over the pull rod.

8. A battery separator winding assembly according to claim 1, characterized in that, It also includes a second driver that drives the base sleeve to rotate.

9. A battery separator winding assembly according to claim 1, characterized in that, The outer wall of the base sleeve is provided with a limiting seat, which is located on the side of the second sleeve away from the first sleeve.

10. A battery separator winding assembly according to claim 1, characterized in that, The inner wall of the first sleeve is provided with a first keyway, the inner wall of the second sleeve is provided with a second keyway, and the outer wall of the base sleeve is provided with a third keyway extending along its axial direction. A key is inserted into the first keyway, the second keyway, and the third keyway.

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