Adapter piece

Abstract

The utility model discloses an adapter piece, which belongs to the technical field of adapter pieces and comprises an adapter piece body, the adapter piece body is provided with two welding areas and a groove area, the welding areas are positioned on two sides of the adapter piece body, the welding areas are welded with tabs of a battery cell, and the groove area is positioned on the adapter piece body. The groove area is positioned between the two welding areas, and the groove area is welded with a pole of the battery cell top cover. According to the utility model, the groove area is arranged on the adapter plate and can be welded with the pole of the top cover of the battery cell, so that the assembly space between the adapter plate and the top cover is fully utilized, and the energy density of the battery is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of adapter piece, especially relates to an adapter piece. BACKGROUND

[0002] The square aluminium shell battery mainly consists of shell, top cover assembly, adapter piece, insulating film, bottom support plate and electric core etc. The battery top cover assembly usually contains positive pole, negative pole, explosion-proof valve and explosion-proof patch, top cover piece, lower plastic, liquid injection hole etc. The electric core includes electric core body, positive pole lug and negative pole lug, and the positive pole lug and the negative pole lug are welded with the adapter piece, and the adapter piece is welded with the pole, so that the electric core and the top cover are connected, and the battery charging and discharging function is realized.

[0003] The existing adapter piece usually adopts the plane type structure, and in actual welding, there is a gap between the adapter piece and the top cover, so that the space between the adapter piece and the top cover is not fully utilized, and therefore the energy density of the battery is affected. UTILITY MODEL CONTENTS

[0004] The utility model overcomes the insufficient of prior art, provides an adapter piece to solve the problems in prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of an adapter piece, which is welded with an electric core, and the adapter piece includes an adapter piece body, a welding area and a groove area are arranged on the adapter piece body, the number of the welding area is two and the welding area is located on both sides of the adapter piece body, the welding area is welded with the pole lug of the electric core, the groove area is located between the two welding areas, and the groove area is welded with the pole of the top cover.

[0006] In a preferred embodiment of the utility model, the welding area is located at the position of both sides of the adapter piece body, so as to weld the pole lug of the electric core.

[0007] In a preferred embodiment of the utility model, the position height of the welding area is higher than the position height of the groove area.

[0008] In a preferred embodiment of the utility model, the adapter piece body is provided with a current limiting area, and the current limiting area is located between the welding area and the groove area.

[0009] In a preferred embodiment of the utility model, the current limiting area includes a plurality of current limiting holes, and the current limiting holes are distributed along the length direction of the adapter piece body.

[0010] In a preferred embodiment of the utility model, one side of the welding area is welded with the pole lug of the electric core, and the other side corresponds to the position of the plastic glue of the top cover.

[0011] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0012] The adapter plate of this invention has a groove area that can be welded to the terminal post of the cell top cover, thus making full use of the assembly space between the adapter plate and the top cover, thereby effectively improving the energy density of the battery. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a schematic diagram of the welding structure between the adapter plate and the battery cell in a preferred embodiment of this utility model;

[0015] Figure 2 for Figure 1 A sectional view;

[0016] Figure 3 This is a first structural schematic diagram of the adapter piece according to a preferred embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the second structure of the adapter piece according to a preferred embodiment of the present invention;

[0018] In the picture: 100, battery cell; 200, top cover;

[0019] 10. Adapter plate body; 11. Welding area; 12. Groove area; 13. Flow limiting area; 20. Flow limiting hole. Detailed Implementation

[0020] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0021] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] Example 1

[0023] Combination Figure 1 and Figure 3 As shown, this embodiment provides an adapter piece for welding to a battery cell 100. The adapter piece includes an adapter piece body 10, on which welding areas 11 and groove areas 12 are provided. There are two welding areas 11 located on both sides of the adapter piece body 10. The welding areas 11 are welded to the tabs of the battery cell 100. The groove areas 12 are located between the two welding areas 11 and are welded to the terminals of the top cover 200. The adapter piece in this embodiment has a groove area 12, which can be welded to the terminals of the top cover 200. Therefore, the assembly space between the adapter piece body 10 and the top cover 200 is fully utilized, thereby effectively improving the energy density of the battery.

[0024] In this embodiment, the welding area 11 is located on both sides of the adapter plate body 10 for welding the tabs of the battery cell 100. The height of the welding area 11 is higher than the height of the groove area 12.

[0025] Furthermore, in this embodiment, one side of the welding area 11 is welded to the tab of the battery cell 100, and the other side corresponds to the position of the plastic adhesive on the top cover 200. In this embodiment, there is a gap between the welding area 11 and the top cover 200, and the gap is 0-0.5mm.

[0026] Example 2

[0027] Combination Figure 1 and Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the adapter body 10 is provided with a current limiting area 13. The current limiting area 13 is located between the welding area 11 and the groove area 12. The current limiting area 13 includes a plurality of current limiting holes 20. The current limiting holes 20 are distributed along the length direction of the adapter body 10. The presence of the current limiting holes 20 can cause them to break in the event of an external short circuit in the battery, thereby disconnecting the circuit and protecting the battery safety.

[0028] Combining Embodiment 1 and Embodiment 2, the adapter piece in Embodiment 1 is a negative electrode adapter piece welded to the battery cell 100, and the adapter piece in Embodiment 2 is a positive electrode adapter piece welded to the battery cell 100. With the cooperation of the negative electrode adapter piece and the positive electrode adapter piece, the core welding process between the two battery cells 100 is realized.

[0029] While the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present invention. That is, the methods, systems, or devices discussed above are merely examples. Various configurations can be appropriately omitted, substituted, or added to various processes or components. For example, in alternative configurations, methods can be performed in a different order than described, and / or various stages can be added, omitted, and / or combined. Moreover, features described with respect to certain configurations can be combined in various other configurations. Different aspects and elements of the configuration can be combined in a similar manner. Furthermore, as technology develops, many elements are merely examples and do not limit the scope of this disclosure or the claims.

[0030] Specific details are provided in the specification to offer a thorough understanding of exemplary configurations, including implementations. However, configurations can be practiced without these specific details; for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring the configuration. This description provides only exemplary configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes can be made to the function and arrangement of the elements without departing from the spirit or scope of this disclosure.

[0031] Furthermore, although each operation can be described as a sequential process, many operations can be executed in parallel or simultaneously. Additionally, the order of operations can be rearranged. A process may have additional steps. Moreover, examples of methods can be implemented using hardware, software, firmware, middleware, code, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or code, the program code or code segments used to perform the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium and executed by a processor.

[0032] In summary, the above detailed description is intended to be exemplary rather than limiting, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of this invention. These embodiments should be understood as illustrative only and not as limiting the scope of protection of this invention. After reading the description of this invention, those skilled in the art can make various alterations or modifications to it, and these equivalent changes and modifications also fall within the scope defined by the claims of this invention.

Claims

1. An adapter piece for welding to a battery cell (100), characterized in that, The adapter plate includes an adapter plate body (10), on which a welding area (11) and a groove area (12) are provided. There are two welding areas (11) located on both sides of the adapter plate body (10). The welding areas (11) are welded to the tabs of the battery cell (100). The groove area (12) is located between the two welding areas (11) and is welded to the pole of the top cover (200).

2. The adapter plate according to claim 1, characterized in that, The welding area (11) is located on both sides of the adapter body (10) for welding the tabs of the battery cell (100).

3. The adapter plate according to claim 1, characterized in that, The welding area (11) is at a higher position than the groove area (12).

4. The adapter plate according to claim 1, characterized in that, The adapter plate body (10) is provided with a current limiting area (13), which is located between the welding area (11) and the groove area (12).

5. The adapter plate according to claim 4, characterized in that, The flow-limiting zone (13) includes a plurality of flow-limiting holes (20), which are distributed along the length of the adapter plate body (10).

6. The adapter plate according to claim 1, characterized in that, The welding area (11) is welded to the tab of the battery cell (100) on one side and corresponds to the position of the plastic adhesive on the top cover (200) on the other side.

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