A sodium-ion battery cylindrical cell connecting assembly

Abstract

The utility model discloses a kind of sodium ion battery cylindrical battery cell connecting assemblies, including conducting assembly, conducting assembly includes conducting shell and two conducting columns, the two ends of conducting shell are slidably connected with the opposite end of two conducting columns respectively, a kind of sodium ion battery cylindrical battery cell connecting assemblies of the utility model, by setting connecting mechanism, screw rod is pushed angle seat from one side, so that angle lever occurs angular deflection relative to angle seat, angle lever pulls two second clamps relative to the angular deflection of first clamping plate, two second clamps are clamped and fixed from the electrode two sides of cylindrical battery cell, to connect different specifications of positive and negative electrode in this way, and cylindrical battery cell is fixed by the same specification of welding strip and welding equipment, replace traditional frequent switching different specifications of connecting piece and corresponding welding head, while satisfying the better conductive connection effect between battery cell, battery cell maintenance efficiency and cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of sodium-ion battery technology, specifically to a cylindrical cell connection assembly for sodium-ion batteries. Background Technology

[0002] Sodium-ion batteries have a higher thermal runaway temperature than lithium batteries. They generate less heat and have a lower temperature rise during short circuits, resulting in better safety. The cylindrical cells can retain about 70% of their capacity even at -40℃ and support high-efficiency charging at -20℃, making them suitable for extreme climate conditions. When equipped with a dedicated charger, they can be charged to 80% in 15 minutes, meeting the need for rapid recharging. The cylindrical design increases the surface area, which helps reduce heat accumulation and improves thermal management efficiency, making them popular with consumers.

[0003] Assembling sodium-ion battery cylindrical cells into a battery pack requires the following steps: First, the sodium-ion battery cylindrical cells are assembled into cell assemblies using connecting components; second, the cell assemblies are connected into a battery pack; and finally, the battery pack is tested and packaged.

[0004] However, traditional cylindrical cell connection assemblies for sodium-ion batteries have the following drawbacks:

[0005] During the welding and assembly of cylindrical cells in sodium-ion batteries, since both the positive and negative electrodes are located at one end of the cell, connecting different specifications of connectors to the positive and negative electrodes of the cell is very cumbersome because the welding areas of the positive and negative electrodes of the cylindrical cell are different. This requires frequent switching of different specifications of connectors and corresponding welding heads. Utility Model Content

[0006] The purpose of this utility model is to provide a sodium-ion battery cylindrical cell connection assembly to solve the problem mentioned in the background art that, during the welding and assembly of cylindrical cells, since the positive and negative electrodes are both located at one end of the cell, when connecting different specifications of connectors to the positive and negative electrodes of the cell, the welding areas of the positive and negative electrodes of the cylindrical cell are different, requiring frequent switching of different specifications of connectors and corresponding welding heads, which is very cumbersome.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cylindrical cell connection assembly for a sodium-ion battery, comprising a conductive assembly, the conductive assembly comprising a conductive shell and two conductive posts, the two ends of the conductive shell being slidably connected to opposite ends of the two conductive posts, conductive mounting posts being fixedly installed on opposite sides of the two conductive posts, and connecting mechanisms being fixedly installed on opposite sides of the two conductive mounting posts, the connecting mechanism comprising a first clamping plate and two second clamping plates, the two ends of the first clamping plate being rotatably connected to one end of the two second clamping plates, and a fixing assembly being installed between the two second clamping plates.

[0008] Preferably, the fixing assembly includes an angle seat and two angle rods. The two ends of the angle seat are rotatably connected to one end of each of the two angle rods. A positioning plate is provided on one side of the angle seat, and a screw is threadedly connected to the middle of the positioning plate. One end of the screw is rotatably connected to one side of the angle seat. When the user rotates the screw, the thread on the surface of the screw matches the thread on the inner wall of the positioning plate, so the screw rotates and translates relative to the positioning plate. The screw pushes the angle seat from one side, causing the angle rods to deflect at an angle relative to the angle seat. The angle rods pull the two second clamping plates to deflect at an angle relative to the first clamping plate, and the two second clamping plates clamp and fix the cylindrical battery cell from both sides of the electrode.

[0009] Preferably, the ends of the two angle rods away from the angle seat are rotatably connected to the two second clamping plates, one side of the positioning plate is fixedly connected to the first clamping plate, the fixing component is installed on the first clamping plate through the positioning plate, and the fixing component is installed on the second clamping plate through the angle rods.

[0010] Preferably, each of the two second clamping plates has a welding strip rotatably connected to the end away from the first clamping plate. The user uses welding equipment to weld the two welding strips together, thereby completing the welding and fixing of the electrodes on the cylindrical battery cell by the connecting mechanism.

[0011] Preferably, one side of each of the two first clamping plates is fixedly connected to two conductive mounting posts, and the connecting mechanism is mounted on the conductive mounting posts through the first clamping plates.

[0012] Preferably, a plurality of conductive strips are fixedly installed on the surfaces of the two conductive pillars. The installation of the conductive strips increases the conductive area of ​​the conductive pillars themselves and improves the conductivity of the connecting assembly.

[0013] Preferably, the conductive shell has two symmetrically arranged locking screws threaded on its surface. The conductive shell is fixedly connected to the two conductive posts by the locking screws. When the user tightens the locking screws, the threads on the surface of the locking screws match the threads on the inner wall of the conductive shell, so the locking screws rotate and rise relative to the conductive shell, fixing the conductive shell and the conductive posts together.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a connecting mechanism, the screw pushes the angle seat from one side, causing the angle rod to deflect at an angle relative to the angle seat. The angle rod pulls the two second clamping plates to deflect at an angle relative to the first clamping plate. The two second clamping plates clamp and fix the electrodes of the cylindrical battery cell from both sides, thereby connecting the positive and negative electrodes of battery cells of different specifications. Furthermore, the cylindrical battery cell is fixed by welding rods and welding equipment of the same specification, replacing the traditional method of frequently switching between connectors of different specifications and corresponding welding heads. This achieves a better conductive connection effect between battery cells while reducing battery cell maintenance efficiency and cost. Attached Figure Description

[0015] Figure 1 This is a side view of the present invention;

[0016] Figure 2 This is a side view of the conductive component of this utility model;

[0017] Figure 3 This is a perspective view of the connecting mechanism of this utility model;

[0018] Figure 4 This is a side view of the connecting mechanism of this utility model.

[0019] In the diagram: 1. Connecting mechanism; 101. First clamping plate; 102. Second clamping plate; 103. Welding strip; 104. Fixing component; 1041. Angle seat; 1042. Angle rod; 1043. Screw; 1044. Positioning plate; 2. Conductive mounting post; 3. Conductive component; 31. Conductive shell; 32. Conductive post; 33. Conductive strip; 34. Locking screw. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 This utility model provides a cylindrical cell connection assembly for sodium-ion batteries, including a conductive assembly 3. The conductive assembly 3 includes a conductive shell 31 and two conductive posts 32. The two ends of the conductive shell 31 are slidably connected to the opposite ends of the two conductive posts 32. A conductive mounting post 2 is fixedly installed on the opposite side of each of the two conductive posts 32. A connection mechanism 1 is fixedly installed on the opposite side of each of the two conductive mounting posts 2. The connection mechanism 1 includes a first clamping plate 101 and two second clamping plates 102. The two ends of the first clamping plate 101 are rotatably connected to one end of each of the two second clamping plates 102. A fixing assembly 104 is installed between the two second clamping plates 102.

[0022] The fixing assembly 104 includes an angle seat 1041 and two angle rods 1042. The two ends of the angle seat 1041 are rotatably connected to one end of each of the two angle rods 1042. A positioning plate 1044 is provided on one side of the angle seat 1041. A screw 1043 is threadedly connected to the middle of the positioning plate 1044. One end of the screw 1043 is rotatably connected to one side of the angle seat 1041. When the user rotates the screw 1043, the threads on the surface of the screw 1043 match the threads on the inner wall of the positioning plate 1044. Therefore, the screw 1043 rotates and translates relative to the positioning plate 1044. The screw 1043 pushes the angle seat 1041 from one side, causing the angle rods 1042 to deflect at an angle relative to the angle seat 1041. The angle rods 1042 pull the two second clamping plates 102 to deflect at an angle relative to the first clamping plate 101. The two second clamping plates 102 clamp and fix the cylindrical battery cell from both sides of the electrode.

[0023] The ends of the two angle rods 1042 away from the angle seat 1041 are rotatably connected to the two second clamping plates 102 respectively. One side of the positioning plate 1044 is fixedly connected to the first clamping plate 101. The fixing component 104 is installed on the first clamping plate 101 through the positioning plate 1044. The fixing component 104 is installed on the second clamping plate 102 through the angle rods 1042.

[0024] Welding strips 103 are rotatably connected to the ends of the two second clamping plates 102 away from the first clamping plate 101. The user uses welding equipment to weld the two welding strips 103 together, thereby completing the welding and fixing of the electrodes on the cylindrical battery cell by the connection mechanism 1.

[0025] One side of each of the two first clamping plates 101 is fixedly connected to one of the two conductive mounting posts 2, and the connecting mechanism 1 is mounted on the conductive mounting posts 2 through the first clamping plates 101.

[0026] Several conductive strips 33 are fixedly installed on the surfaces of the two conductive posts 32. The installation of the conductive strips 33 increases the conductive area of ​​the conductive posts 32 themselves, thereby improving the conductivity of the connecting components.

[0027] The conductive shell 31 has two symmetrically arranged locking screws 34 connected to its surface threaded connection. The conductive shell 31 is fixedly connected to the two conductive posts 32 by the locking screws 34 respectively. When the user tightens the locking screws 34, the threads on the surface of the locking screws 34 match the threads on the inner wall of the conductive shell 31. Therefore, the locking screws 34 rotate and rise relative to the conductive shell 31, fixing the conductive shell 31 and the conductive posts 32 together.

[0028] In this embodiment, during use: the user slides the conductive post 32 along the conductive shell 31 to adjust the distance between the two connecting mechanisms 1, allowing the connecting assembly to connect two cylindrical battery cells at different distances. The installation of the conductive strip 33 increases the conductive area of ​​the conductive post 32 itself, improving the conductivity of the connecting assembly. The user tightens the locking screw 34; the thread on the surface of the locking screw 34 matches the thread on the inner wall of the conductive shell 31, so the locking screw 34 rotates and rises relative to the conductive shell 31, fixing the conductive shell 31 and the conductive post 32 together. The user rotates the screw 1043... The threads on the surface match the threads on the inner wall of the positioning plate 1044, so the screw 1043 rotates and translates relative to the positioning plate 1044. The screw 1043 pushes the angle seat 1041 from one side, causing the angle rod 1042 to deflect at an angle relative to the angle seat 1041. The angle rod 1042 pulls the two second clamping plates 102 to deflect at an angle relative to the first clamping plate 101. The two second clamping plates 102 clamp and fix the electrodes of the cylindrical cell from both sides. The user uses welding equipment to weld the two welding rods 103 together, thereby completing the welding and fixing of the electrodes on the cylindrical cell of the battery by the connecting mechanism 1.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cylindrical cell connection assembly for a sodium-ion battery, comprising a conductive component (3), characterized in that: The conductive component (3) includes a conductive shell (31) and two conductive posts (32). The two ends of the conductive shell (31) are slidably connected to the opposite ends of the two conductive posts (32). A conductive mounting post (2) is fixedly installed on the opposite side of the two conductive posts (32). A connecting mechanism (1) is fixedly installed on the opposite side of the two conductive mounting posts (2). The connecting mechanism (1) includes a first clamping plate (101) and two second clamping plates (102). The two ends of the first clamping plate (101) are rotatably connected to one end of the two second clamping plates (102). A fixing component (104) is installed between the two second clamping plates (102).

2. The sodium-ion battery cylindrical cell connection assembly of claim 1, wherein: The fixing assembly (104) includes an angle seat (1041) and two angle rods (1042). The two ends of the angle seat (1041) are rotatably connected to one end of each of the two angle rods (1042). A positioning plate (1044) is provided on one side of the angle seat (1041). A screw (1043) is threadedly connected to the middle of the positioning plate (1044). One end of the screw (1043) is rotatably connected to one side of the angle seat (1041).

3. The sodium-ion battery cylindrical cell connection assembly of claim 2, wherein: The ends of the two angle rods (1042) away from the angle seat (1041) are respectively rotatably connected to the two second clamping plates (102), and one side of the positioning plate (1044) is fixedly connected to the first clamping plate (101).

4. The sodium-ion battery cylindrical cell connection assembly according to claim 1, characterized in that: Welding strips (103) are rotatably connected to the ends of the two second clamping plates (102) away from the first clamping plate (101).

5. A sodium-ion battery cylindrical cell connection assembly according to claim 1, characterized in that: One side of each of the two first clamps (101) is fixedly connected to two conductive mounting posts (2).

6. The sodium-ion battery cylindrical cell connection assembly according to claim 1, characterized in that: Several conductive strips (33) are fixedly installed on the surfaces of the two conductive pillars (32).

7. A sodium-ion battery cylindrical cell connection assembly according to claim 1, characterized in that: The conductive shell (31) has two symmetrically arranged locking screws (34) threadedly connected to its surface. The conductive shell (31) is fixedly connected to two conductive posts (32) by the locking screws (34).

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