Adapter piece and battery

Abstract

The utility model belongs to the technical field of batteries, and discloses an adapter piece and a battery, the adapter piece comprises a connecting plate, a fixing plate and a reinforcing rib plate, the fixing plate is connected to one end of the connecting plate along a first direction, an included angle is formed between the fixing plate and the connecting plate, one side of the connecting plate is connected with a tab, and the other side of the connecting plate is connected with a pole; the fixing plate abuts against the side face of the roll core, and the reinforcing rib plate is arranged at the junction of the connecting plate and the fixing plate and connected with the side, facing the roll core, of the connecting plate and the side, facing the roll core, of the fixing plate. The fixing plate and the connecting plate are connected in an angle mode, so that compared with a plane type adapter piece, the cross section size of the adapter piece is reduced, the resistance of the adapter piece is reduced due to the reduction of the cross section size, high heat productivity is avoided, and the reinforcing rib plate is arranged at the junction of the connecting plate and the fixing plate, so that the connecting plate and the fixing plate are integrally connected. Therefore, the connecting plate and the fixing plate are supported, and the overall structural strength of the adapter piece is improved.

Description

Technical Field

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

[0002] The role and importance of adapters in batteries are crucial. Adapters not only reflect technological processes but also directly affect the overall performance and safety of the battery module. As a vital connecting component in the battery, the adapter is mainly used to connect the terminals and tabs, ensuring smooth current transfer while meeting the battery's overcurrent and strength requirements.

[0003] Adapters generally come in two structural forms: planar and L-shaped. Planar adapters include a main connection area and two branch connection areas. The main connection area connects to the terminal, and the two branch connection areas connect to the positive and negative terminals respectively, thus enabling smooth current transfer between the terminal and the terminals. However, this type of adapter has a large cross-section, resulting in high resistance and heat generation. L-shaped adapters, lacking reinforcement at the corners, suffer from weaker structural strength, leading to greater deformation and poor structural stability during use. Utility Model Content

[0004] The purpose of this invention is to provide an adapter and battery with a smaller cross-sectional area, lower resistance, and lower heat generation.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] On one hand, an adapter piece is provided for connecting an electrode post to an electrode lug of a winding core. The adapter piece includes a connecting plate, a fixing plate, and a reinforcing rib plate. The fixing plate is connected to one end of the connecting plate along a first direction and forms an angle with the connecting plate. One side of the connecting plate is connected to the electrode lug, and the other side of the connecting plate is connected to the electrode post. The fixing plate abuts against the side of the winding core. The reinforcing rib plate is disposed at the junction of the connecting plate and the fixing plate. One end of the reinforcing rib plate is connected to the side of the connecting plate facing the winding core, and the other end of the reinforcing rib plate is connected to the side of the fixing plate facing the winding core.

[0007] Optionally, the connecting plate is perpendicularly connected to the fixing plate.

[0008] Optionally, the cross-section at the junction of the connecting plate and the fixing plate is arc-shaped.

[0009] Optionally, the fixing plate is further provided with welding through holes for welding the fixing plate to the core.

[0010] Optionally, the fixing plate is provided with a plurality of uniformly distributed welding through holes along the second direction.

[0011] Optionally, the connecting plate has a first limiting protrusion at the other end opposite to the fixing plate along the first direction. The first limiting protrusion extends from the connecting plate toward the core, and the first limiting protrusion and the fixing plate abut against both sides of the core along the first direction.

[0012] Optionally, the connecting plate is provided with second limiting protrusions on both sides along the third direction. The second limiting protrusions extend from the connecting plate toward the core and the second limiting protrusions on both sides of the connecting plate along the third direction respectively abut against the core along the third direction.

[0013] Optionally, the connecting plate is further provided with a split groove, which is located on both sides of the second limiting protrusion along the first direction.

[0014] Optionally, the adapter plate, which is composed of the connecting plate, the fixing plate, and the reinforcing rib plate, is integrally formed.

[0015] On the other hand, a battery is provided that includes an adapter as described in any of the preceding claims.

[0016] The beneficial effects of this utility model are:

[0017] This utility model provides an adapter plate that connects the fixing plate and the connecting plate at an angle. Compared with a planar adapter plate, this reduces the cross-sectional size of the adapter plate. The reduced cross-sectional size lowers the resistance of the adapter plate, thus avoiding excessive heat generation when current is conducted due to excessive resistance. Furthermore, a reinforcing rib is provided at the junction of the connecting plate and the fixing plate. One end of the reinforcing rib is connected to the side of the connecting plate facing the core, and the other end is connected to the side of the fixing plate facing the core. This provides support at the corner between the connecting plate and the fixing plate, thereby strengthening the overall structural strength of the adapter plate, reducing deformation, and improving structural stability.

[0018] This utility model also provides a battery that, by applying the aforementioned adapter piece, improves current conductivity and reduces current loss during conduction, thereby enhancing power supply capability, due to the lower resistance of the adapter piece. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the adapter plate provided by this utility model;

[0020] Figure 2 yes Figure 1 Enlarged view of the structure of section A;

[0021] Figure 3 This is a schematic diagram showing the distribution of welding through holes on the fixing plate in the adapter piece provided by this utility model;

[0022] Figure 4 This is a schematic diagram of the adapter provided by this utility model connecting to the battery;

[0023] Figure 5 This is a schematic diagram of the L-shaped adapter plate in the background technology of this utility model.

[0024] In the picture:

[0025] 100. Core; 101. Electrode; 102. Side;

[0026] 1. Connecting plate; 11. First limiting protrusion; 12. Second limiting protrusion; 13. Splitting groove;

[0027] 2. Fixing plate; 21. Welding through hole;

[0028] 3. Reinforcing ribs. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] The role and importance of adapters in batteries are crucial. Adapters not only reflect technological processes but also directly affect the overall performance and safety of the battery module. As a vital connecting component in the battery, the adapter is mainly used to connect the terminals and tabs, ensuring smooth current transfer while meeting the battery's overcurrent and strength requirements.

[0034] Adapter plates generally come in two structural forms: one is a planar structure, and the other is... Figure 5 As shown, this is an L-shaped structure. For a planar adapter, it includes a main connection area and two branch connection areas. The main connection area connects to the terminal, and the two branch connection areas connect to the positive and negative terminals respectively, thus enabling smooth current transfer between the terminal and the terminals. However, this type of adapter has an excessively large cross-section, resulting in high resistance and high heat generation. Furthermore, the L-shaped adapter lacks reinforcement at its corners, leading to weak structural strength, large deformation, and poor structural stability during use.

[0035] Therefore, in order to reduce the cross-sectional size of the adapter piece, lower the resistance, and reduce heat generation, this embodiment provides an adapter piece.

[0036] like Figures 1 to 4As shown, the adapter plate includes a connecting plate 1, a fixing plate 2, and a reinforcing rib 3. The fixing plate 2 is vertically connected to one end of the connecting plate 1 along a first direction and has an angle with the connecting plate 1. One side of the connecting plate 1 is connected to the electrode lug 101, and the other side of the connecting plate 1 is connected to the electrode post. The fixing plate 2 abuts against the side 102 of the core 100. The reinforcing rib 3 is located at the junction of the connecting plate 1 and the fixing plate 2. One end of the reinforcing rib 3 is connected to the side of the connecting plate 1 facing the core 100, and the other end of the reinforcing rib 3 is connected to the side of the fixing plate 2 facing the core 100.

[0037] The adapter plate is connected to the fixing plate 2 and the connecting plate 1 at an angle, which reduces the cross-sectional size of the adapter plate compared to a planar adapter plate. The reduced cross-sectional size lowers the resistance of the adapter plate, thus avoiding excessive heat generation when current is conducted due to excessive resistance. A reinforcing rib 3 is provided at the junction of the connecting plate 1 and the fixing plate 2. One end of the reinforcing rib 3 is connected to the side of the connecting plate 1 facing the core 100, and the other end of the reinforcing rib 3 is connected to the side of the fixing plate 2 facing the core 100. This provides support at the corner between the connecting plate 1 and the fixing plate 2, thereby strengthening the overall structural strength of the adapter plate, reducing deformation, and improving structural stability.

[0038] The adapter can be used on various types of batteries, such as prismatic batteries and blade batteries. In this embodiment, the adapter is used on a blade battery, and two adapters are provided in the blade battery. One of the two adapters is used to connect the positive electrode tab and the positive electrode post, and the other of the two adapters is used to connect the negative electrode tab and the negative electrode post.

[0039] Optionally, the connecting plate 1 and the fixing plate 2 are connected perpendicularly. When the connecting plate 1 and the fixing plate 2 are connected perpendicularly, the included angle between the connecting plate 1 and the fixing plate 2 is 90°. At this time, the connecting plate 1 and the fixing plate 2 form an L-shaped adapter piece, so that the connecting plate 1 and the fixing plate 2 fit more tightly with the two right-angled surfaces of the core 100.

[0040] Optionally, the cross-section at the junction of the connecting plate 1 and the fixed plate 2 is arc-shaped. By making the cross-section at the junction of the connecting plate 1 and the fixed plate 2 arc-shaped, compared with the cross-section at the junction of the connecting plate 1 and the fixed plate 2 being right-angled, stress concentration at the corner is avoided, thereby alleviating cracks in the adapter plate due to material fatigue and improving the structural strength and service life of the adapter plate.

[0041] Optionally, such as Figure 3As shown, the fixing plate 2 is also provided with a welding through hole 21, which is used for welding the fixing plate 2 to the core 100. By providing the welding through hole 21 on the fixing plate 2, it is convenient for the fixing plate 2 to be fixedly connected to the core 100 by welding.

[0042] Furthermore, such as Figure 3 As shown, the fixing plate 2 has a plurality of evenly distributed welding through holes 21 along the second direction. By providing a plurality of welding through holes 21 on the fixing plate 2 along the second direction, the welding area between the fixing plate 2 and the core 100 is increased, ensuring the strength of the weld, and ensuring that the plurality of welding through holes 21 are evenly distributed, thereby ensuring that the fixing plate 2 is subjected to uniform stress after welding. In this embodiment, a total of six welding through holes 21 are provided on the fixing plate 2, arranged in three groups of two, and the three groups of welding through holes 21 are evenly distributed on the fixing plate 2 along the second direction.

[0043] Optionally, such as Figure 2 As shown, the connecting plate 1 has a first limiting protrusion 11 at the other end opposite to the fixing plate 2 along the first direction. The first limiting protrusion 11 extends from the connecting plate 1 towards the core 100, and the first limiting protrusion 11 and the fixing plate 2 respectively abut against the two sides of the core 100 along the first direction. By providing the first limiting protrusion 11 at the other end of the connecting plate 1 opposite to the fixing plate 2 along the first direction, the first limiting protrusion 11 plays a limiting role on the connecting plate 1, ensuring that the connecting plate 1 will not move relative to the core 100 along the first direction, thereby avoiding the disconnection between the tab 101 or the pole and the connecting plate 1 due to the misalignment of the connecting plate 1.

[0044] Furthermore, such as Figure 2 As shown, the connecting plate 1 has second limiting protrusions 12 on both sides along the third direction. The second limiting protrusions 12 extend from the connecting plate 1 towards the core 100, and the second limiting protrusions 12 on both sides of the connecting plate 1 along the third direction respectively abut against both sides of the core 100 along the third direction. By providing second limiting protrusions 12 on both sides of the connecting plate 1 along the third direction, the second limiting protrusions 12 limit the connecting plate 1, ensuring that the connecting plate 1 will not move relative to the core 100 along the third direction, thereby avoiding the disconnection of the tab 101 or pole from the connecting plate 1 due to the misalignment of the connecting plate 1.

[0045] Optionally, such as Figure 2 As shown, the connecting plate 1 is also provided with a split groove 13, which is located on both sides of the second limiting protrusion 12 along the first direction. The second limiting protrusion 12 is formed by bending the connecting plate 1 on both sides along the third direction. By providing the split groove 13 on the connecting plate 1, the resistance during bending is reduced, thereby facilitating the formation of the second limiting protrusion 12 by bending the connecting plate 1 on both sides along the third direction.

[0046] Optionally, the adapter plate consisting of the connecting plate 1, the fixing plate 2, and the reinforcing rib plate 3 is integrally molded. By using an integral molding process to manufacture the adapter plate consisting of the connecting plate 1, the fixing plate 2, and the reinforcing rib plate 3, the connecting plate 1, the fixing plate 2, and the reinforcing rib plate 3 can be formed simultaneously during manufacturing, reducing processing steps, lowering processing difficulty, and eliminating the need for connecting the connecting plate 1, the fixing plate 2, and the reinforcing rib plate 3 to each other, thereby shortening the manufacturing cycle.

[0047] This embodiment also provides a battery including the aforementioned adapter piece. By using the adapter piece, which has lower resistance, the battery improves current conductivity, reduces current loss during conduction, and enhances power supply capability.

[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An adapter piece for connecting a pole post to a tab (101) of a winding core (100), characterized in that, The adapter plate includes a connecting plate (1), a fixing plate (2), and a reinforcing rib plate (3). The fixing plate (2) is connected to one end of the connecting plate (1) along a first direction and has an angle with the connecting plate (1). One side of the connecting plate (1) is connected to the pole lug (101), and the other side of the connecting plate (1) is connected to the pole post. The fixing plate (2) abuts against the side (102) of the core (100). The reinforcing rib plate (3) is located at the junction of the connecting plate (1) and the fixing plate (2). One end of the reinforcing rib plate (3) is connected to the side of the connecting plate (1) facing the core (100), and the other end of the reinforcing rib plate (3) is connected to the side of the fixing plate (2) facing the core (100).

2. The adapter plate according to claim 1, characterized in that, The connecting plate (1) is perpendicularly connected to the fixing plate (2).

3. The adapter plate according to claim 1, characterized in that, The cross-section at the junction of the connecting plate (1) and the fixing plate (2) is arc-shaped.

4. The adapter plate according to claim 1, characterized in that, The fixing plate (2) is also provided with a welding through hole (21), which is used for welding the fixing plate (2) to the core (100).

5. The adapter plate according to claim 4, characterized in that, The fixing plate (2) is provided with a plurality of uniformly distributed welding through holes (21) along the second direction.

6. The adapter plate according to claim 1, characterized in that, The connecting plate (1) is provided with a first limiting protrusion (11) at the other end away from the fixing plate (2) along the first direction. The first limiting protrusion (11) extends from the connecting plate (1) toward the core (100). The first limiting protrusion (11) and the fixing plate (2) respectively abut against the two sides of the core (100) along the first direction.

7. The adapter plate according to claim 1, characterized in that, The connecting plate (1) is provided with second limiting protrusions (12) on both sides along the third direction. The second limiting protrusions (12) extend from the connecting plate (1) toward the core (100). The second limiting protrusions (12) on both sides of the connecting plate (1) along the third direction respectively abut against the core (100) on both sides along the third direction.

8. The adapter plate according to claim 7, characterized in that, The connecting plate (1) is also provided with a split groove (13), which is provided on both sides of the second limiting protrusion (12) along the first direction.

9. The adapter plate according to claim 1, characterized in that, The adapter plate, which is composed of the connecting plate (1), the fixing plate (2) and the reinforcing rib plate (3), is integrally formed.

10. A battery, characterized in that, The battery includes the adapter plate as described in any one of claims 1-9.

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