Battery cell pole piece group fixing frame

Abstract

The utility model discloses a fixing frame for a battery cell pole piece group. The fixing frame comprises a base and a holding assembly, a first sliding groove and a second sliding groove are formed in the base, a fixing plate, a mounting plate and elastic pieces which are symmetrical are arranged in the retaining assembly, a containing area is formed in the middle of the retaining assembly, a retaining area is formed between the elastic pieces, baffles which are symmetrically arranged are arranged in the containing area, and the fixing plate and the mounting plate are connected through bolts. According to the battery cell pole piece group fixing frame, by rotating the adjusting piece, the symmetrically arranged fixing plates can drive the mounting plate, the elastic piece and the limiting piece to move back to back, so that the accommodating area is enlarged, and different numbers of battery cell pole pieces can be placed. Not only can the battery pack be adapted to assembly of different battery capacities, but also the battery cell pole pieces can be tidily and uniformly placed, so that the later assembly operation is facilitated.

Description

Technical Field

[0001] This utility model relates to battery technology, and in particular to a battery cell electrode assembly fixing bracket. Background Technology

[0002] For large-capacity rectangular lithium-ion power battery cell electrode assemblies manufactured using a lamination process, the number of electrodes is relatively large, with one positive electrode, one negative electrode, and two separator layers considered as one layer. Due to the large number of layers in the electrode assembly, the movement and assembly of the electrode assemblies during a series of battery manufacturing assembly operations—including removing the electrode assemblies from the lamination machine, inserting them into the battery casing, and riveting, welding, or bolting the electrode tabs to the terminals—can easily lead to misalignment between the electrode layers. Even when laminating on a fully automated lamination machine, the issue of aligning each group of electrode layers within the allowable error range remains. Therefore, a mounting bracket capable of accommodating different numbers of battery electrode assemblies is needed. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model proposes a battery cell electrode assembly fixing bracket.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A battery cell electrode assembly fixing bracket, characterized in that it comprises:

[0006] A base is provided with a first sliding groove and a second sliding groove. The first sliding grooves are symmetrically arranged, and the second sliding groove is located in the middle of the symmetrical first sliding grooves. A bearing seat is provided at the lower end of the base, and an adjusting element is provided on the bearing seat.

[0007] A retaining assembly mounted on a base includes a symmetrically arranged fixing plate, mounting plate, and elastic element. A receiving area is formed in the middle of the retaining assembly, and a retaining area is formed between the elastic elements. One end of the elastic element is disposed between the fixing plate and the mounting plate, and the other end extends into the receiving area. Symmetrically arranged baffles are provided in the receiving area. The fixing plate and the mounting plate are connected by bolts.

[0008] In this type of battery cell electrode assembly fixing frame of the present invention, the lower end of the fixing plate is provided with a sliding block and a positioning block. The positioning block is disposed in a first sliding groove, the sliding block is disposed in a second sliding groove, the middle of the sliding block is provided with a threaded hole, and the adjusting member is provided with a first threaded part and a second threaded part that cooperate with the threaded hole.

[0009] In this type of battery cell electrode assembly fixing bracket of the present invention, the threads of the first threaded portion and the second threaded portion are opposite in direction.

[0010] In this type of battery cell electrode assembly fixing frame of the present invention, the elastic element is composed of an installation section, an arc-shaped section and a positioning section, and the arc-shaped section forms a compression area with the installation plate.

[0011] In this type of battery cell electrode assembly fixing bracket of the present invention, the mounting plate is provided with a notch for accommodating an elastic element, and the arc-shaped segment is disposed in the notch.

[0012] In this type of battery cell electrode assembly fixing frame of the present invention, a fixing part is provided on the fixing plate, and the fixing part is placed on the arc-shaped segment.

[0013] In this type of battery cell electrode assembly fixing bracket of the present invention, the middle of the fixing part is provided with an installation area for accommodating the mounting plate, and the fixing part is also provided with a limiting opening for the limiting baffle.

[0014] In this type of battery cell electrode assembly fixing frame of the present invention, the fixing plate is provided with a fixing opening, and a limiting member is provided in the fixing opening. The limiting member is composed of a base plate and a limiting plate, and the limiting plate is provided with a guide slope and a blocking surface.

[0015] In this type of battery cell electrode assembly fixing bracket of the present invention, an unlocking port is provided on the guide slope.

[0016] In this type of battery cell electrode assembly fixing bracket of the present invention, the mounting plate is provided with a through hole, the limiting plate is placed in the through hole, and the height of the through hole is greater than the height of the blocking surface and the limiting plate.

[0017] The battery cell electrode assembly fixing bracket of this utility model has the following beneficial effects: By rotating the adjusting component, the symmetrically arranged fixing plate can move the mounting plate, elastic component, and limiting component in opposite directions, thereby increasing the accommodating area and allowing for the placement of different numbers of battery cells. This not only accommodates different battery capacity assemblies but also ensures that the battery cells are placed neatly and uniformly, facilitating subsequent assembly operations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the battery cell electrode assembly fixing frame structure of this utility model;

[0019] Figure 2 for Figure 1 Top view;

[0020] Figure 3 for Figure 2 Cross-sectional view at point AA;

[0021] Figure 4 for Figure 3 Enlarged view of section B in the image;

[0022] Figure 5 for Figure 1 Exploded view;

[0023] Figure 6 for Figure 5 A schematic diagram of the elastic element structure in the diagram;

[0024] Figure 7 for Figure 5 A schematic diagram of the limiting component structure in the middle;

[0025] Figure 8 for Figure 5 A schematic diagram of the fixed plate structure. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] like Figures 1 to 8 As shown, the battery cell electrode assembly fixing frame of this utility model includes a base 1 and a holding component 2. The holding component 2 is disposed on the base 1 and is used to place the battery cell electrode. The size of the accommodating area 3 in the middle of the holding component 2 can be changed according to the battery capacity to facilitate clamping and positioning of multiple battery cell electrode pieces, which facilitates subsequent assembly operations.

[0028] The base 1 is provided with a first sliding groove 4 and a second sliding groove 5. The first sliding groove 4 is symmetrically arranged, and the second sliding groove 5 is located in the middle of the symmetrical first sliding groove 4. The lower end of the base 1 is provided with a bearing seat 6, and the bearing seat 6 is provided with an adjusting component 7.

[0029] A retaining assembly 2 is mounted on the base 1. The retaining assembly 2 includes a symmetrically arranged fixing plate 8, mounting plate 10, and elastic element 9. A receiving area 3 is formed in the middle of the retaining assembly 2, and a retaining area 11 is formed between the elastic elements 9. The battery cell electrode is disposed in the retaining area 11. One end of the elastic element 9 is disposed between the fixing plate 8 and the mounting plate 10, and the other end extends into the receiving area 3. The receiving area 3 is provided with symmetrically arranged baffles 12. The fixing plate 8 and the mounting plate 10 are connected by bolts 13.

[0030] The lower end of the fixed plate 8 is provided with a sliding block 14 and a positioning block 15. The positioning block 15 is disposed in the first sliding groove 4, and the sliding block 14 is disposed in the second sliding groove 5. The sliding block 14 has a threaded hole 16 in the middle. The adjusting member 7 has a first threaded portion 17 and a second threaded portion 18 that mate with the threaded hole 16. The thread directions of the first threaded portion 17 and the second threaded portion 18 are opposite. The threaded hole 16 on one fixed plate 8 has the opposite thread direction to the threaded hole 16 on the other fixed plate 8, and mates with the first threaded portion 17 and the second threaded portion 18 respectively.

[0031] The elastic element 9 consists of an installation section 20, an arc-shaped section 21, and a positioning section 22. A compression area 23 is formed between the arc-shaped section 21 and the mounting plate 10. An installation opening 24 is provided on the fixing plate 8 for installing the installation section 20. Furthermore, a notch 25 for accommodating the elastic element 9 is provided on the mounting plate 10, and the arc-shaped section 21 is disposed within the notch 25. A fixing part 26 is provided on the fixing plate 8, and the fixing part 26 is placed on the arc-shaped section 21, thereby confining the arc-shaped section 21 within the notch 25.

[0032] The fixing part 26 has a mounting area 27 in the middle for accommodating the mounting plate 10, and the fixing part 26 also has a limiting opening 28 for the limiting baffle 12. The baffle 12 has a protrusion 29 that cooperates with the limiting opening 28.

[0033] The fixed plate 8 has a fixed opening 30, and a limiting member 31 is provided inside the fixed opening 30. The limiting member 31 is composed of a base plate 321 and a limiting plate 32. The limiting plate 32 has a guide slope 33 and a blocking surface 34. The guide slope 33 is used to guide the positioning segment 22 to be placed on the blocking surface 34. The guide slope 33 has an unlocking opening 35. After the positioning segment 22 on the elastic member 9 is placed on the blocking surface 34, for the convenience of the next operation, a strip-shaped rod can be used to push the unlocking openings 35 on the two limiting members 31, so that the elastic member 9 itself is reset by elastic force.

[0034] A through hole 36 is provided on the mounting plate 10, and a limiting plate 32 is placed in the through hole 36. The height of the through hole 36 is greater than the height of the blocking surface 34 and the limiting plate 32. This facilitates the passage of the blocking surface 34 and the guide slope 33 through the through hole 36.

[0035] When placing the battery cell electrodes, a certain number of electrodes are placed according to the set size of the holding area 11. After the predetermined number of electrodes are placed, the positioning segment 22 on the elastic member 9 is pushed onto the blocking surface 34, at which point the placed electrodes can be easily removed from the receiving area 3. Then, the limiting member 31 is unlocked by pushing the strip-shaped rod, causing the elastic member 9 to reset.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery cell electrode assembly fixing bracket, characterized in that, include: A base is provided with a first sliding groove and a second sliding groove. The first sliding grooves are symmetrically arranged, and the second sliding groove is located in the middle of the symmetrical first sliding grooves. A bearing seat is provided at the lower end of the base, and an adjusting element is provided on the bearing seat. A retaining assembly mounted on a base includes a symmetrically arranged fixing plate, mounting plate, and elastic element. A receiving area is formed in the middle of the retaining assembly, and a retaining area is formed between the elastic elements. One end of the elastic element is disposed between the fixing plate and the mounting plate, and the other end extends into the receiving area. Symmetrically arranged baffles are provided in the receiving area. The fixing plate and the mounting plate are connected by bolts.

2. The cell electrode assembly fixing frame according to claim 1, characterized in that, The lower end of the fixed plate is provided with a sliding block and a positioning block. The positioning block is set in the first sliding groove, and the sliding block is set in the second sliding groove. The sliding block is provided with a threaded hole in the middle. The adjusting member is provided with a first threaded part and a second threaded part that cooperate with the threaded hole.

3. The cell electrode assembly fixing frame according to claim 2, characterized in that, The first threaded portion and the second threaded portion have opposite thread directions.

4. The cell electrode assembly fixing frame according to claim 1, characterized in that, The elastic element consists of an installation section, an arc-shaped section, and a positioning section, with the arc-shaped section forming a compression area between itself and the installation plate.

5. The cell electrode assembly fixing frame according to claim 4, characterized in that, The mounting plate has a notch for accommodating an elastic element, and the arc-shaped segment is disposed within the notch.

6. The cell electrode assembly fixing bracket according to claim 5, characterized in that, The fixing plate is provided with a fixing part, which is placed on the arc-shaped segment.

7. The cell electrode assembly fixing bracket according to claim 6, characterized in that, The fixing part has an installation area in the middle to accommodate the mounting plate, and the fixing part also has a limiting opening for the limiting baffle.

8. The cell electrode assembly fixing frame according to claim 7, characterized in that, The fixing plate is provided with a fixing opening, and a limiting member is provided in the fixing opening. The limiting member is composed of a base plate and a limiting plate. The limiting plate is provided with a guide slope and a blocking surface.

9. The cell electrode assembly fixing frame according to claim 8, characterized in that, An unlocking port is provided on the guide slope.

10. The cell electrode assembly fixing frame according to claim 9, characterized in that, The mounting plate has a through hole, and the limiting plate is placed inside the through hole. The height of the through hole is greater than the height of the blocking surface and the limiting plate.

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