High-capacity battery structure laterally connected with short knife

Abstract

The utility model discloses a high-capacity battery structure laterally connected by a short knife. The high-capacity battery structure comprises a base plate, a first mounting hole, an anti-explosion valve patch, an anti-explosion valve, a second mounting hole, a stop frame, a positioning hole, a positioning lug, a clamping plate, a clamping wing, a clamping block, a horizontal bearing part, a vertical abutting part, a lightening hole, an aluminum pressing plate, a connecting plate, a sealing ring and a connecting rivet, the side faces, close to each other, of the clamping plates abut against and clamp the two sides of the aluminum shell battery cell in a matched mode, the top end of the aluminum shell battery cell is positioned through the positioning protruding block arranged on the stop frame so that the aluminum shell battery cell can be fixedly assembled, then the two sides of the electrode lug are clamped through the clamping wings, and the bottom end of the electrode lug is supported through the horizontal supporting part; the subsequent welding of the tabs can be conveniently realized; meanwhile, the clamping plate, the clamping wing, the clamping block and the stop frame form certain surrounding protection on the aluminum shell battery cell and the tab, so that the safety performance of the device is improved, and the possibility of external force damage is reduced.

Description

Technical Field

[0001] This utility model specifically relates to a high-capacity battery structure with a short blade side connection. Background Technology

[0002] With the continuous development of new energy batteries, batteries have begun to be widely used in large structures such as automobiles. As a result, the requirements for battery capacity, cycle life and lifespan have also increased. Consequently, the previously small-structured batteries no longer meet the requirements, so it is necessary to scale up the product structure to a certain extent.

[0003] Short-blade batteries typically refer to relatively compact battery cells, with a design shape similar to a conventional cuboid, but shorter in length than long-blade batteries. This allows for greater flexibility in battery pack arrangement, making them suitable for placement in various locations within a vehicle, especially in space-constrained areas. During production, short-blade batteries generally require laser welding of the tabs and cover plate together. This connection method demands high precision in the tab placement. Furthermore, the enlarged structure compared to ordinary batteries adds inconvenience to production. Significant errors in the tab installation position can also pose safety hazards during battery use. Utility Model Content

[0004] The purpose of this invention is to provide a high-capacity battery structure with a short blade side connection to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-capacity battery structure with a short blade side connection, comprising:

[0006] substrate;

[0007] A stop frame, which is fixedly disposed at the bottom of the base plate;

[0008] The clamping plates are provided in two, and are respectively fixedly connected to both ends of the stop frame. The sides of the two clamping plates that are close to each other are used to cooperate and abut against the aluminum shell battery cell, and the sides of the two clamping plates that are far apart from each other are used to clamp and fix the electrode tabs.

[0009] Preferably, clamping wings are fixedly connected to both sides of the clamping plate, and the clamping wings are used to abut against the side of the fixed electrode tab.

[0010] Preferably, a clamping block is fixedly connected to the bottom end of the clamping plate. The clamping block is L-shaped and is divided into a horizontal support part and a vertical abutment part. The horizontal support part is fixedly connected to the bottom end of the clamping plate. The horizontal support part is used to support the bottom end of the electrode tab, and the vertical abutment part is used to abut against the aluminum shell battery cell.

[0011] Preferably, a plurality of weight-reducing holes are evenly provided at the connection between the clamping plate and the clamping wing.

[0012] Preferably, a second mounting hole is provided on the substrate, and an explosion-proof valve patch and an explosion-proof valve are disposed in the second mounting hole from top to bottom. The explosion-proof valve patch covers the second mounting hole, and the bottom of the explosion-proof valve patch is attached to the explosion-proof valve.

[0013] Preferably, the substrate has first mounting holes at both ends, and the stop bracket has positioning holes at both ends. The first mounting holes and positioning holes are vertically aligned. A connecting component is provided on the substrate, and the connecting component passes through the first mounting holes and is connected to the positioning holes.

[0014] Preferably, the connecting assembly includes an aluminum pressure plate, a connecting plate, a sealing ring, and connecting rivets arranged from top to bottom; the aluminum pressure plate and the connecting plate are fixedly connected, and the connecting plate is disposed on the first mounting hole, the bottom end of the positioning hole is fitted with the sealing ring, and the connecting rivets pass through the sealing ring and the first mounting hole and are connected to the aluminum pressure plate.

[0015] Preferably, the stop bracket is further provided with a positioning protrusion, which is used to fix the aluminum shell battery cell.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The clamping plates, with their sides close together, abut against both sides of the aluminum-cased battery cell, and the positioning protrusions on the stop frame position the top of the aluminum-cased battery cell to facilitate its fixed assembly. The clamping wings then clamp the sides of the tabs, and the horizontal support supports the bottom of the tabs to facilitate subsequent welding. At the same time, the clamping plates, clamping wings, clamping blocks, and stop frame provide a certain degree of protection for the aluminum-cased battery cell and the tabs, increasing the safety performance of the device and reducing the possibility of damage from external forces. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram showing the structural breakdown of this utility model;

[0020] Figure 3 This is a schematic diagram of the clamping plate structure of this utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] In the figure: 1. Substrate; 11. First mounting hole; 12. Explosion-proof valve patch; 13. Explosion-proof valve; 14. Second mounting hole; 2. Stopper; 21. Positioning hole; 22. Positioning bump; 3. Clamping plate; 31. Clamping wing; 32. Clamping block; 321. Horizontal supporting part; 322. Vertical abutting part; 33. Weight-reducing hole; 4. Aluminum pressing plate; 5. Connecting plate; 6. Sealing ring; 7. Connecting rivet; 8. Aluminum shell battery cell. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-4 , the present invention provides a technical solution: a large-capacity battery structure with a short knife side connection, including:

[0025] Substrate 1;

[0026] Stopper 2, the stopper 2 is fixedly arranged at the bottom of the substrate 1;

[0027] Clamping plates 3, there are two clamping plates 3, the clamping plates 3 are respectively fixedly connected to both ends of the stopper 2, and the mutually close sides of the two clamping plates 3 are used to cooperate to abut and clamp the aluminum shell battery cell 8, and the mutually far sides of the two clamping plates 3 are respectively used to clamp and fix the pole ears.

[0028] By using the mutually close sides of the two clamping plates 3 to cooperate to abut and clamp the aluminum shell battery cell 8, it is convenient to first position and assemble the aluminum shell battery cell 8, and their mutually far sides are respectively used to clamp and fix the positive and negative pole ears for subsequent ultrasonic welding of the pole ears.

[0029] In this embodiment, clamping wings 31 are respectively fixedly connected to both sides of the clamping plate 3, and the clamping wings 31 are used to abut the sides of the fixed pole ears. The clamping wings 31 on both sides and the clamping plate 构成 a "C"-shaped structure bend to semi-surround and abut and fix the positive and negative pole ears, so as to facilitate the subsequent ultrasonic welding of the pole ears with the clamping plate 3 and the clamping wings 31.

[0030] In this embodiment, a clamping block 32 is fixedly connected to the bottom end of the clamping plate 3. The clamping block 32 is in an shape of an "L" shape and is divided into a horizontal supporting portion 321 and a vertical abutting portion 322. The horizontal supporting portion 321 is fixedly connected to the bottom end of the clamping plate 3 and is used to support the bottom end of the tab. The vertical abutting portion 322 is used to abut against the aluminum shell battery cell 8. Through the vertical abutting portion 322 of the clamping block 32, it is convenient to preliminarily abut and position the two sides of the aluminum shell battery cell 8 during the assembly of the aluminum shell battery cell 8. Later, the side surface of the clamping plate 3 is used to completely position the aluminum shell battery cell 8. At the same time, the horizontal supporting portion 321 is used to support the bottom end of the tab, that is, cooperate with the clamping wings 31 to achieve the abutting and fixing of the positive and negative tabs, so as to facilitate the welding after the positioning of the positive and negative tabs.

[0031] In this embodiment, a positioning convex block 22 is further provided on the stop frame 2. The positioning convex block 22 is used to fix the aluminum shell battery cell 8, and the clamping and positioning of the top end of the aluminum shell battery cell 8 is achieved through the positioning convex block 22.

[0032] The two sides of the aluminum shell battery cell 8 are abutted and clamped by the side surfaces of the clamping plates 3 close to each other, and the top end of the aluminum shell battery cell 8 is positioned by the positioning convex block 22 provided on the stop frame 2 to facilitate the fixed assembly of the aluminum shell battery cell 8. Then, the two sides of the tab are clamped by the clamping wings 31 and the bottom end of the tab is supported by the horizontal supporting portion 321 to facilitate the subsequent welding of the tab. At the same time, the clamping plates 3, the clamping wings 31, the clamping blocks 32 and the stop frame 2 form a certain surrounding protection for the aluminum shell battery cell 8 and the tab, so that the whole device can withstand high and low temperature shocks, sudden temperature changes and salt spray. It still maintains good safety performance under extreme challenges such as water immersion, vibration, mechanical shock, extrusion, and针刺.

[0033] In this embodiment, a plurality of weight-reducing holes 33 are evenly opened at the connection between the clamping plate 3 and the clamping wings 31. Through the setting of the weight-reducing holes 33, the purpose of reducing materials is achieved. At the same time, the setting of the weight-reducing holes 33 is convenient for forming the bending of the "匚" - shaped structure.

[0034] In this embodiment, a second mounting hole 14 is opened on the substrate 1. An explosion-proof valve patch 12 and an explosion-proof valve 13 are arranged in the second mounting hole 14 from top to bottom. The explosion-proof valve patch 12 covers the second mounting hole 14, and the bottom of the explosion-proof valve patch 12 is in contact with the explosion-proof valve 13. Through the setting of the explosion-proof valve, the situation of自爆 of the aluminum shell battery cell 8 during subsequent use can be prevented.

[0035] In this embodiment, the substrate 1 has first mounting holes 11 at both ends, and the stop bracket 2 has positioning holes 21 at both ends. The first mounting holes 11 and the positioning holes 21 are vertically aligned. A connecting assembly is provided on the substrate 1. The connecting assembly passes through the first mounting holes 11 and is connected to the positioning holes 21. The connecting assembly includes an aluminum pressure plate 4, a connecting plate 5, a sealing ring 6, and a connecting rivet 7 arranged from top to bottom. The aluminum pressure plate 4 and the connecting plate 5 are fixedly connected, and the connecting plate 5 is disposed on the first mounting hole 11. The bottom end of the positioning hole 21 fits against the sealing ring 6. The connecting rivet passes through the sealing ring 6 and the first mounting hole 11 and is connected to the aluminum pressure plate 4.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-capacity battery structure with a short blade side connection, characterized in that, include: base(1); A stop frame (2) is fixedly disposed at the bottom of the base plate (1); Clamping plate (3), two clamping plates (3) are provided, and the clamping plates (3) are respectively fixedly connected to the two ends of the stop frame (2). The sides of the two clamping plates (3) that are close to each other are used to cooperate to abut and clamp the aluminum shell battery cell (8), and the sides of the two clamping plates (3) that are far apart from each other are used to clamp and fix the electrode tabs respectively.

2. The high-capacity battery structure with a short blade side connection according to claim 1, characterized in that: The clamping plate (3) has clamping wings (31) fixedly connected to both sides, and the clamping wings (31) are used to abut against the side of the fixed electrode tab.

3. The high-capacity battery structure with a short blade side connection according to claim 2, characterized in that: The bottom end of the clamping plate (3) is fixedly connected to a clamping block (32). The clamping block (32) is "L" shaped and is divided into a horizontal support part (321) and a vertical abutment part (322). The horizontal support part (321) is fixedly connected to the bottom end of the clamping plate (3). The horizontal support part (321) is used to support the bottom end of the electrode tab, and the vertical abutment part (322) is used to abut against the aluminum shell cell (8).

4. The high-capacity battery structure with a short blade side connection according to claim 3, characterized in that: Several weight-reducing holes (33) are evenly provided at the connection between the clamping plate (3) and the clamping wing (31).

5. A high-capacity battery structure with a short blade side connection according to claim 4, characterized in that: The substrate (1) has a second mounting hole (14). An explosion-proof valve patch (12) and an explosion-proof valve (13) are arranged from top to bottom in the second mounting hole (14). The explosion-proof valve patch (12) covers the second mounting hole (14), and the bottom of the explosion-proof valve patch (12) is attached to the explosion-proof valve (13).

6. A high-capacity battery structure with a short blade side connection according to claim 5, characterized in that: The substrate (1) has a first mounting hole (11) at both ends, and the stop bracket (2) has a positioning hole (21) at both ends. The first mounting hole (11) and the positioning hole (21) are vertically aligned. A connecting component is provided on the substrate (1). The connecting component passes through the first mounting hole (11) and is connected to the positioning hole (21).

7. A high-capacity battery structure with a short blade side connection according to claim 6, characterized in that: The connecting assembly includes an aluminum pressure plate (4), a connecting plate (5), a sealing ring (6), and a connecting rivet (7) arranged from top to bottom; the aluminum pressure plate (4) and the connecting plate (5) are fixedly connected, and the connecting plate (5) is set on the first mounting hole (11), the bottom end of the positioning hole (21) is fitted with the sealing ring (6), and the connecting rivet passes through the sealing ring (6) and the first mounting hole (11) and connects to the aluminum pressure plate (4).

8. A high-capacity battery structure with a short blade side connection according to claim 7, characterized in that: The stop bracket (2) is also provided with a positioning protrusion (22), which is used to fix the aluminum shell battery cell (8).

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