Positioning tool for overlapped and parallel battery cells of lithium battery

Abstract

The utility model discloses a lithium battery overlapped parallel battery core positioning tool, and particularly relates to the technical field of lithium batteries, the lithium battery overlapped parallel battery core positioning tool comprises a center plate, one end of the center plate is provided with a battery core rubberizing groove I for lithium battery core overlapped rubberizing, the bottom of the center plate is fixedly connected with a pair of support frames, and two sides of the center plate are provided with positioning side plates; a second battery cell rubberizing groove is formed in each positioning side plate, an opening and closing mechanism is arranged at the bottom of the center plate and comprises a positioning column, the positioning column is fixedly connected to the bottom of the center plate, a first rotating plate is rotationally connected to the positioning column, and second rotating plates are rotationally connected to the two ends of the first rotating plate; one end, opposite to the rotating plate I, of the rotating plate II is rotationally connected to the bottom positions of the positioning side plates; the opening and closing mechanism is connected with the pair of positioning side plates; according to the utility model, the technical problem that the specification applicability of the battery cell combination cannot be met because the design of the battery cell positioning tool is single in size is solved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and more specifically, to a positioning fixture for overlapping parallel lithium battery cells. Background Technology

[0002] A lithium battery is a type of battery made of lithium metal that can charge devices. A battery cell is the internal charging and discharging component of a lithium battery, and cells are mainly divided into aluminum-cased cells and pouch cells. During manufacturing, to meet the charging and discharging capacity requirements, multiple lithium battery cells need to be overlapped and fixed together (often using adhesive bonding) so that the tabs of the multiple cells face the same direction.

[0003] For example, the utility model patent with publication number CN221885154U discloses a positioning fixture for overlapping parallel lithium battery cells, including a base plate, with a surrounding plate extending upward from the periphery of the base plate; the base plate and the surrounding plate define an accommodating space for housing the battery cells; the first end of the base plate is provided with a top adhesive groove for the battery cells, and the first end of the surrounding plate is provided with a clearance groove for the battery cell tabs, the two being connected; the second end of the base plate is provided with a bottom adhesive groove for the battery cells, and the second end of the surrounding plate is provided with a clearance groove, the two being connected; the two sides of the base plate in the width direction are also provided with side adhesive grooves, and the two sides of the surrounding plate in the width direction are also provided with clearance grooves, the two being connected.

[0004] In the aforementioned patent, the inventor believes that although the patent improves the quality and efficiency of overlapping and applying adhesive to battery cells, the design of the entire positioning fixture has a single size, which can only be used for positioning, arranging and applying adhesive to one type of battery cell, thus failing to meet the specification applicability of battery cell combinations.

[0005] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a positioning tool for overlapping parallel lithium battery cells, in order to achieve a more practical purpose. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the technical problem that the design of battery cell positioning fixtures has the limitation of size and cannot meet the specification applicability of battery cell assemblies.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for overlapping parallel lithium battery cells, comprising a center plate, one end of which is provided with a cell adhesive groove for overlapping and applying adhesive to lithium battery cells, a pair of support frames fixedly connected to the bottom of the center plate, positioning side plates on both sides of the center plate, each positioning side plate being provided with a cell adhesive groove, an opening and closing mechanism at the bottom of the center plate being connected to the pair of positioning side plates, and a positioning tail plate at the tail of the center plate, wherein a cell adhesive groove is provided on the positioning tail plate, and a precision lead screw is provided on one of the support frames and the cell adhesive groove.

[0008] In a preferred embodiment, a rubber suction cup is fixedly connected to the bottom of the support frame.

[0009] In a preferred embodiment, a limit block is fixedly connected to one end of the inner corner of the positioning side plate.

[0010] In a preferred embodiment, the opening and closing mechanism includes a positioning post, which is fixedly connected to the bottom of the center plate. A rotating plate is rotatably connected to the positioning post, and rotating plates are rotatably connected to both ends of the rotating plate. The end of the rotating plate facing away from the rotating plate is rotatably connected to the bottom of the positioning side plate.

[0011] In a preferred embodiment, the bottom of the rotating plate is threaded with a locking bolt, and the bottom of the center plate is provided with a plurality of fixing holes for threaded connection of the locking bolt.

[0012] In a preferred embodiment, a pair of slides are fixedly connected to the bottom of the positioning side plate, and the pair of slides are slidably connected to a pair of support frames.

[0013] In a preferred embodiment, a fixing plate is fixedly connected to the bottom of the positioning tail plate, one end of the precision lead screw is rotatably connected to the fixing plate, and a rotating head is fixedly connected to one end of the precision lead screw. The other end of the precision lead screw is threadedly connected to the support frame, and a pair of sliding rods are fixedly connected to the side of the fixing plate. Both sliding rods are slidably connected to the support frame.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This lithium battery overlapping parallel cell positioning fixture has a pair of positioning side plates on both sides of the center plate and a positioning side plate at the tail of the center plate. The positioning side plates can be adjusted in distance to or away from the center plate by opening and closing mechanism, thus providing width adjustability for cell positioning. The positioning tail plate can be adjusted in distance at the tail of the center plate by screw, thus providing length adjustability for cell positioning. Through the combination of the above structures, the entire cell positioning fixture meets the effect of size adjustment, so it can adapt to the overlapping positioning and adhesive application requirements of cells of different specifications.

[0016] 2. The lithium battery overlapping parallel cell positioning fixture is equipped with a rubber suction cup. The rubber suction cup can be used to adhere and fix the supporting surface by using the principle of negative pressure adsorption. Therefore, the rubber suction cup can stabilize the supporting position of the cell fixture while also satisfying the position adjustability. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This utility model Figure 1 A bottom view.

[0020] Figure 3 This is a schematic diagram of the positioning side plate of this utility model.

[0021] Figure 4 This is a schematic diagram of the opening and closing mechanism of this utility model.

[0022] Figure 5 This is a schematic diagram of the positioning tail plate, support frame, and precision lead screw of this utility model.

[0023] The attached diagram is labeled as follows: 1. Center plate; 2. Cell adhesive application groove one; 3. Support frame; 4. Positioning side plate; 41. Cell adhesive application groove two; 5. Opening and closing mechanism; 51. Positioning column; 52. Rotating plate one; 53. Rotating plate two; 6. Positioning tail plate; 61. Cell adhesive application groove three; 7. Fixing plate; 71. Precision lead screw; 8. Limiting block; 9. Locking bolt; 10. Fixing hole; 11. Slide seat; 12. Rotating head; 13. Slide rod; 14. Rubber suction cup. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Refer to Figure-1 Figure 5 This utility model provides a positioning fixture for overlapping parallel lithium battery cells, including a center plate 1, one end of which is provided with a cell adhesive groove 2 for overlapping and applying adhesive to lithium battery cells.

[0026] The center plate 1 provides central support for the lithium battery cells (hereinafter referred to as cells). The cell adhesive groove 2 can be used to attach tape to one end of the cells overlapping on the center plate 1, ensuring high adhesive precision. It is worth noting that since one end of the cell is usually provided with a pair of tabs, the adhesive application point is between the pair of tabs. By neatly overlapping multiple cells on the center plate 1, the corresponding tabs on the multiple cells can be arranged in the same direction, so that the tabs can be connected in parallel later.

[0027] In this embodiment: a pair of support frames 3 are fixedly connected to the bottom of the center plate 1, and a rubber suction cup 14 is fixedly connected to the bottom of the support frame 3.

[0028] The support frame 3 can provide bottom support for the center plate 1. Multiple rubber suction cups 14 can be set on each support frame 3. By pressing the rubber suction cups 14 onto the support surface, the negative pressure inside the rubber suction cups 14 can make the support frame 3 stably supported on the support surface, thus stabilizing the use position of the battery cell positioning fixture. Similarly, by tilting the rubber suction cups 14 to release the negative pressure, the support position of the battery cell positioning fixture can be easily adjusted.

[0029] In this embodiment: both sides of the center plate 1 are provided with positioning side plates 4, and each positioning side plate 4 is provided with a cell adhesive groove 41.

[0030] The positioning side plate 4 is arranged in an L-shape. This design can meet the support requirements of the battery cells and the limitation requirements of the stacking height. Each positioning side plate 4 is provided with at least two battery cell adhesive grooves 41 to meet the adhesive placement requirements. By setting the positioning side plate 4 on one side of the center plate 1, the battery cells placed on the center plate 1 can be limited by the positioning side plate 4, so that the battery cells can be neatly stacked on the center plate 1. The battery cell adhesive grooves 41 on the positioning side plate 4 can provide space for adhesive application, so that users can take the adhesive and apply it to the sides of multiple battery cells for top and bottom bonding and fixation.

[0031] In this embodiment, a limiting block 8 is fixedly connected to one end of the inner corner of the positioning side plate 4.

[0032] The limiting block 8 can be positioned at the corner of the battery cell tab. When the battery cell is placed on the center plate 1, the limiting block 8 can calibrate the position of the battery cell corner, so that the battery cells can overlap more neatly.

[0033] In this embodiment: the bottom of the center plate 1 is provided with an opening and closing mechanism 5, which is connected to a pair of positioning side plates 4. The opening and closing mechanism 5 includes a positioning post 51, which is fixedly connected to the bottom position of the center plate 1. A rotating plate 52 is rotatably connected to the positioning post 51. Rotating plates 53 are rotatably connected to both ends of the rotating plate 52. The end of the rotating plate 53 facing away from the rotating plate 52 is rotatably connected to the bottom position of the positioning side plate 4.

[0034] When it is necessary to adjust the distance between a pair of positioning side plates 4 and the center plate 1, the positioning side plates 4 can be pulled, and the rotating plate 53 at the bottom of the positioning side plates 4 can be rotated to pull the rotating plate 52 around the positioning post 51. By utilizing the rotational connection between the pair of rotating plates 53 and the rotating plate 52, the pair of positioning side plates 4 can be moved away from or away from the center plate 1 at the same time for adjustment. In this way, the width of the entire battery cell fixture can be adjusted to meet the width limit requirements of battery cells of different sizes.

[0035] It is worth noting that the opening and closing mechanism 5 is used to control the spacing adjustment of the pair of positioning side plates 4. When the telescopic form of the opening and closing mechanism 5 is used to maximize the spacing adjustment of the pair of positioning side plates 4, the position of the opening and closing mechanism 5 can be easily hidden when the pair of positioning side plates 4 are adjusted to the minimum spacing. This ensures the aesthetics and rationality of the structural design.

[0036] In this embodiment: the bottom of the rotating plate 52 is threaded with a locking bolt 9, and the bottom of the center plate 1 is provided with multiple fixing holes 10 for threaded connection of the locking bolt 9.

[0037] After adjusting the position of a pair of positioning side plates 4, one end of the locking bolt 9 on the rotating plate 52 can be aligned with one of the fixing holes 10. The locking bolt 9 and the fixing hole 10 are threaded together to lock the rotating plate 52, thus locking the adjusted position of the positioning side plate 4. Since multiple fixing holes 10 are provided, the threaded connection between one fixing hole 10 and the locking bolt 9 can meet the fixing requirements of positioning side plates 4 with different spacing.

[0038] In this embodiment: a pair of slide blocks 11 are fixedly connected to the bottom of the positioning side plate 4, and the pair of slide blocks 11 are slidably connected to a pair of support frames 3 respectively.

[0039] When the traction positioning side plate 4 is adjusted, the slide 11 can slide on the support frame 3. In this application, the support frame 3 is set in a T-shaped structure, so that the positioning side plate 4 can be linearly adjusted.

[0040] In this embodiment: a positioning tail plate 6 is provided at the tail of the center plate 1, and a cell adhesive groove 61 is provided on the positioning tail plate 6.

[0041] The positioning tail plate 6 is also L-shaped, and its principle is the same as that of the positioning side plate 4. The positioning tail plate 6 can provide abutment for the other end of the battery cell, and the position of the battery cell adhesive groove 3 61 can be glued to the tail of multiple battery cells for vertical fixation.

[0042] In this embodiment: a precision lead screw 71 is provided on one of the support frames 3 and the battery cell adhesive tray 61. A fixing plate 7 is fixedly connected to the bottom of the positioning tail plate 6. One end of the precision lead screw 71 is rotatably connected to the fixing plate 7, and a rotating head 12 is fixedly connected to one end of the precision lead screw 71. The other end of the precision lead screw 71 is threadedly connected to the support frame 3. A pair of sliding rods 13 are fixedly connected to the side of the fixing plate 7. Both of the sliding rods 13 are slidably connected to the support frame 3.

[0043] When it is necessary to adjust the distance between the positioning tail plate 6 and the center plate 1, the user can use hardware tools to drive the hexagonal rotating head 12. The rotation of the rotating head 12 allows the precision lead screw 71 to be threaded on the fixed plate 7. The fixed plate 7 provides rotational support for the precision lead screw 71 and fixed support for the slide rod 13. Since the slide rod 13 is slidably mounted on the support frame 3, the slide rod 13, based on the sliding guide on the support frame 3, allows the precision lead screw 71 to move the positioning tail plate 6 closer to or further away from the tail of the center plate 1. This allows the length of the entire battery cell tooling to be adjusted to meet the limit requirements of the battery cell arrangement length.

[0044] Furthermore, since the precision lead screw 71 is located at the bottom of the center plate 1, when the positioning tail plate 6 is adjusted to the maximum or minimum distance, the precision lead screw 71 can achieve the design effect of not protruding, thus ensuring the aesthetics and rationality of the design.

[0045] It is worth noting that, see appendix Figure 5 As can be seen, both the support frame 3 and the slide rod 13 in this embodiment are equipped with scales marking the distance. Therefore, when the positioning side plate 4 slides on the support frame 3 via the slide block 11, the edge of the slide block 11 can be aligned with the scale on the support frame 3 to achieve the marking function for distance adjustment. The slide rod 13 slides on the support frame 3, and the adjustment distance of the positioning tail plate 6 can be obtained by longitudinally viewing the scale on the slide rod 13 at the tail end of the center plate 1.

[0046] Furthermore, in order to meet the calculation requirements of the scale lines for adjusting the distance of the positioning side plate 4 and the positioning tail plate 6, the center plate 1 should be marked with its own length and width values, the positioning side plate 4 should be marked with its own width value, and the positioning tail plate 6 should be marked with its own width value. This makes it easier to meet the standard for calculating the placement of the battery cell length and width by adding and subtracting the scale lines on the support frame 3 and the slide rod 13.

Claims

1. A positioning fixture for overlapping parallel lithium battery cells, characterized in that: The device includes a center plate (1), one end of which is provided with a cell adhesive groove (2) for overlapping and applying adhesive to lithium battery cells. A pair of support frames (3) are fixedly connected to the bottom of the center plate (1). Positioning side plates (4) are provided on both sides of the center plate (1), and each positioning side plate (4) is provided with a cell adhesive groove (41). An opening and closing mechanism (5) is provided at the bottom of the center plate (1), and the opening and closing mechanism (5) is connected to the pair of positioning side plates (4). The center plate (1) is provided with a positioning tail plate (6) at its tail end. The positioning tail plate (6) is provided with a cell adhesive groove three (61). A precision lead screw (71) is provided on one of the support frames (3) and the cell adhesive groove three (61).

2. The lithium battery overlapping parallel cell positioning fixture according to claim 1, characterized in that: A rubber suction cup (14) is fixedly connected to the bottom of the support frame (3).

3. The lithium battery overlapping parallel cell positioning fixture according to claim 1, characterized in that: One end of the inner corner of the positioning side plate (4) is fixedly connected to a limiting block (8).

4. The lithium battery overlapping parallel cell positioning fixture according to claim 1, characterized in that: The opening and closing mechanism (5) includes a positioning post (51), which is fixedly connected to the bottom of the center plate (1). A rotating plate (52) is rotatably connected to the positioning post (51). A rotating plate (53) is rotatably connected to both ends of the rotating plate (52). The end of the rotating plate (53) facing away from the rotating plate (52) is rotatably connected to the bottom of the positioning side plate (4).

5. The lithium battery overlapping parallel cell positioning fixture according to claim 4, characterized in that: The bottom of the rotating plate (52) is threaded with a locking bolt (9), and the bottom of the center plate (1) is provided with multiple fixing holes (10) for threaded connection of the locking bolt (9).

6. The lithium battery overlapping parallel cell positioning fixture according to claim 1, characterized in that: The bottom of the positioning side plate (4) is fixedly connected to a pair of slides (11), and the pair of slides (11) are slidably connected to a pair of support frames (3).

7. The lithium battery overlapping parallel cell positioning fixture according to claim 1, characterized in that: The bottom of the positioning tail plate (6) is fixedly connected to a fixing plate (7). One end of the precision lead screw (71) is rotatably connected to the fixing plate (7), and one end of the precision lead screw (71) is fixedly connected to a rotating head (12). The other end of the precision lead screw (71) is threadedly connected to the support frame (3). A pair of slide rods (13) are fixedly connected to the side of the fixing plate (7), and both slide rods (13) are slidably connected to the support frame (3).

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