Automatically weldable battery cell module and automatic welding assembly method thereof

Abstract

The present invention discloses an automatically weldable battery cell module, comprising a plurality of battery cell modules and at least one battery cell connection and signal acquisition component; the plurality of battery cell modules are arranged side by side horizontally, each battery cell module comprises two battery cells and a conductive bar, the two battery cells are arranged vertically, a receiving groove is formed between the two battery cells, the conductive bar is located between the two battery cells and is welded to the electrodes of the two battery cells, the end of the conductive bar has a welding portion, and the welding portion is located in the receiving groove; the battery cell connection and signal acquisition component comprises an insulating fixing frame and an FPC component, and the FPC component has a plurality of horizontally arranged connecting pieces. By placing the battery cell connection and signal acquisition component in the receiving groove, then connecting the battery cell connection and signal acquisition component with welding equipment and performing signal acquisition, introducing a laser welding process, and then automatically welding the connecting pieces to the corresponding welding portions, the welding quality of the product is effectively improved, thereby improving the production efficiency of the product.

Description

Technical Field

[0001] The present invention relates to the field of new energy batteries, and in particular to an automatically weldable battery cell module and an automatic welding assembly method thereof. Background Art

[0002] With the advancement of technology and the establishment of the concept of sustainable development, the application of new energy lithium batteries is becoming more and more common. During the production process, the battery cell module needs to be welded with the connecting piece to conduct electricity.

[0003] However, the welding of battery cell modules and connecting tabs is performed manually. Due to the low precision of manual welding, the welding quality of the product is poor. In addition, the manual welding strength is high, which reduces the production efficiency of the product. Therefore, it is necessary to propose a new solution to improve the existing welding process of battery cell modules and connecting tabs. Summary of the Invention

[0004] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide an automatically welded battery cell module and an automatic welding assembly method thereof, which can effectively solve the problem that the existing battery cell modules and connecting pieces are welded manually, resulting in poor welding quality of the product and reduced production efficiency of the product.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An automatically weldable battery cell module comprises a plurality of battery cell modules and at least one battery cell connection and signal acquisition component;

[0007] The multiple battery modules are arranged side by side in a transverse manner, and each battery module includes two battery cells and a conductive bar. The two battery cells are arranged longitudinally, and a receiving groove is formed between the two battery cells. The conductive bar is located between the two battery cells and is welded to the electrodes of the two battery cells for conduction. The end of the conductive bar has a horizontally extending welding portion, and the welding portion is located in the receiving groove.

[0008] The battery cell connection and signal acquisition component is placed in the accommodating groove, and the battery cell connection and signal acquisition component includes an insulating fixing frame and an FPC component fixed on the insulating fixing frame. The FPC component has multiple horizontally arranged connecting pieces, and each connecting piece is respectively against the corresponding welding part and is fixed and connected by laser welding.

[0009] As a preferred solution, the conductive bar is an I-shaped conductive bar, and both upper and lower ends thereof are bent and horizontally extended to form the aforementioned welding portions.

[0010] As a preferred solution, the insulating fixing frame includes an upper frame and a lower frame, which are buckled and fixed together, the upper frame is provided with through slots running through the upper and lower frames, and the lower frame is provided with multiple positioning slots running through the upper and lower frames; the FPC assembly is clamped between the upper and lower frames, and the multiple connecting pieces are respectively located in the corresponding positioning slots, and the multiple connecting pieces are located directly below the through slots.

[0011] As a preferred solution, a locking hole is provided on the outer side of the lower frame body, and a convex portion is formed on the outer side of the upper frame body, which is concave at the top and convex at the bottom, and the convex portion is fixed with the aforementioned locking hole by snapping.

[0012] As a preferred solution, a buckle is provided at the upper end of the lower frame, and the buckle is buckled and fixed to the upper end of the upper frame.

[0013] As a preferred solution, the FPC assembly includes an FPC, each connecting piece is welded and fixed to the FPC and is connected, and the outer end of the FPC is welded and connected to a connector.

[0014] As a preferred solution, the multiple battery cell modules are arranged in multiple rows arranged longitudinally, and the aforementioned battery cell connection and signal acquisition components are also provided between two adjacent rows of battery cell modules.

[0015] An automatic welding assembly method for the aforementioned automatically weldable battery cell module comprises the following steps:

[0016] (1) Fabricate and form a conductive busbar, an insulating fixing frame, and an FPC assembly, and weld the conductive busbar to the corresponding battery cells to form multiple battery cell modules. Fix the FPC assembly on the insulating fixing frame to form a battery cell connection and signal acquisition assembly.

[0017] (2) Multiple cell modules are arranged side by side horizontally, and the cell connection and signal acquisition components are placed in the accommodating grooves so that each connecting piece is respectively against the corresponding welding part and fixed and connected by laser welding.

[0018] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0019] By placing the battery cell connection and signal acquisition components in the accommodating groove, each connecting piece is respectively against the corresponding welding part, and then the battery cell connection and signal acquisition components are connected to the welding equipment and signal acquisition is performed. After introducing the laser welding process, the connecting pieces are respectively welded to the corresponding welding parts by automatic welding, thereby effectively improving the welding quality of the product and improving the production efficiency of the product.

[0020] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of an assembly perspective view of a preferred embodiment of the present invention;

[0022] Figure 2 It is an exploded view of a preferred embodiment of the present invention;

[0023] Figure 3 is a cross-sectional view of a preferred embodiment of the present invention;

[0024] Figure 4 It is an enlarged schematic diagram of the battery cell module in a preferred embodiment of the present invention.

[0025] Description of the accompanying drawings:

[0026] 10. Cell module 101, receiving tank

[0027] 11. Battery Cell 111. Electrode

[0028] 12. Conductive bar 121, welding part

[0029] 20. Cell connection and signal acquisition components 21. Insulation fixing frame

[0030] 211, upper frame 2111, through slot

[0031] 2112, convex portion 212, lower frame

[0032] 2121, positioning groove 2122, card hole

[0033] 2123, buckle 22, FPC assembly

[0034] 221, connecting piece 222, FPC

[0035] 23. Connector. DETAILED DESCRIPTION

[0036] Please refer to Figures 1 to 4 As shown, it shows the specific structure of a preferred embodiment of the present invention, including a plurality of battery cell modules 10 and at least one battery cell connection and signal acquisition component 20.

[0037] The multiple cell modules 10 are arranged side by side horizontally. Each cell module 10 includes two cells 11 and a conductive bar 12. The two cells 11 are arranged vertically, with a receiving groove 101 formed between the two cells 11. The conductive bar 12 is located between the two cells 11 and is welded to the electrodes 111 of the two cells 11 for electrical connection. The end of the conductive bar 12 has a horizontally extending welding portion 121, which is located in the receiving groove 101. In this embodiment, the conductive bar 12 is an I-shaped conductive bar, with both its upper and lower ends bent and extending horizontally to form the aforementioned welding portion 121. The multiple cell modules 10 are arranged in multiple rows arranged vertically, and the aforementioned cell connection and signal acquisition component 20 is also provided between two adjacent rows of cell modules 10.

[0038] The battery cell connection and signal acquisition component 20 is placed in the accommodating groove 101. The battery cell connection and signal acquisition component 20 includes an insulating fixing frame 21 and an FPC component 22 fixed on the insulating fixing frame 21. The FPC component 22 has multiple horizontally arranged connecting pieces 221. Each connecting piece 221 is respectively against the corresponding welding part 121 and is fixed and connected by laser welding. The connecting pieces 221 are multiple groups, and each group of connecting pieces 221 is composed of multiple connecting pieces 221 formed in one piece. In this embodiment, the insulating fixing frame 21 includes an upper frame 211 and a lower frame 212, and the upper frame 211 and the lower frame 212 are buckled and fixed up and down. The upper frame 211 is provided with a through slot 2111 from top to bottom, and the lower frame 212 is provided with a plurality of positioning slots 2121 from top to bottom; the FPC assembly 22 is clamped between the upper frame 211 and the lower frame 212, and the plurality of connecting pieces 221 are respectively located in the corresponding positioning slots 2121, and the plurality of connecting pieces 221 are located directly below the through slot 2111; and the A card hole 2122 is provided on the outer side of the lower frame 212, and a protrusion 2112 is formed on the outer side of the upper frame 211, which is concave at the top and convex at the bottom. The protrusion 2112 is fixed to the aforementioned card hole 2122 by snapping. A buckle 2123 is provided at the upper end of the lower frame 212, and the buckle 2123 is fixed to the upper end of the upper frame 211 by snapping. The FPC assembly 22 includes an FPC222, and each connecting piece 221 is welded and fixed to the FPC222 and is connected, and the outer end of the FPC222 is welded and connected with a connector 23.

[0039] The method of using this embodiment is described in detail as follows:

[0040] During production, first, the conductive bar 12 is welded to the corresponding battery cell 11 to form a battery cell module 10. Then, the upper frame 211, the lower frame 212 and the FPC assembly 22 are respectively formed. The FPC assembly 22 is clamped between the upper frame 211 and the lower frame 212. Then, the battery cell connection and signal acquisition assembly 20 is placed in the accommodating groove 101.

[0041] When in use, the product is connected to the welding equipment through the connector 23 and signal acquisition is performed. The laser welding process is introduced and the welding equipment is started to perform laser welding on the conductive bar 12 and the connecting piece 221 .

[0042] The present invention also discloses an automatic welding assembly method for the aforementioned automatically weldable battery cell module, comprising the following steps:

[0043] (1) Fabricate and form a conductive busbar 12, an insulating fixing frame 21, and an FPC assembly 22, and weld the conductive busbar 12 to the corresponding battery cells 11 to form a plurality of battery cell modules 10, and fix the FPC assembly 22 on the insulating fixing frame 21 to form a battery cell connection and signal acquisition assembly 20.

[0044] (2) Multiple cell modules 10 are arranged side by side horizontally, and the cell connection and signal acquisition assembly 20 is placed in the accommodating groove, so that each connecting piece 221 is respectively against the corresponding welding part 121 and fixed and connected by laser welding.

[0045] The design focus of the present invention is: by placing the battery cell connection and signal acquisition components in the accommodating groove, each connecting piece is respectively against the corresponding welding part, and then the battery cell connection and signal acquisition components are connected with the welding equipment and signal acquisition is performed. After introducing the laser welding process, the connecting pieces are respectively welded to the corresponding welding parts by automatic welding, thereby effectively improving the welding quality of the product and improving the production efficiency of the product.

[0046] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A battery cell module capable of automatic welding, characterized by: It includes multiple battery cell modules and at least one battery cell connection and signal acquisition component; The multiple battery cell modules are arranged side by side in a transverse manner, and each battery cell module includes two battery cells and a conductive bar. The two battery cells are arranged longitudinally, and a receiving groove is formed between the two battery cells. The conductive bar is located between the two battery cells and is welded to the electrodes of the two battery cells for electrical connection. The end of the conductive bar has a horizontally extending welding portion, and the welding portion is located in the receiving groove. The conductive bar is an I-shaped conductive bar, and its upper and lower ends are bent and horizontally extended to form the aforementioned welding portion. The battery cell connection and signal acquisition component is placed in the accommodating groove, and the battery cell connection and signal acquisition component includes an insulating fixing frame and an FPC component fixed on the insulating fixing frame. The insulating fixing frame includes an upper frame and a lower frame, and the upper frame and the lower frame are buckled and fixed up and down. The upper frame is provided with through grooves from top to bottom, and the lower frame is provided with multiple positioning grooves from top to bottom; the FPC component is clamped between the upper frame and the lower frame, and multiple connecting pieces are respectively located in the corresponding positioning grooves, and multiple connecting pieces are located directly below the through grooves; the FPC component has multiple horizontally arranged connecting pieces, each connecting piece is respectively against the corresponding welding part and is fixed and connected by laser welding.

2. The automatically weldable battery cell module according to claim 1, characterized in that: The outer side of the lower frame body is provided with a clamping hole, and the outer side of the upper frame body is formed with a convex portion which is concave at the top and convex at the bottom, and the convex portion is fixed with the clamping hole.

3. The automatically weldable battery cell module according to claim 1, characterized in that: The upper end of the lower frame is provided with a buckle portion, which is buckled and fixed with the upper end of the upper frame.

4. The automatically weldable battery cell module according to claim 1, characterized in that: The FPC assembly includes an FPC, each connecting piece is welded and fixed to the FPC and is connected, and the outer end of the FPC is welded and connected to a connector.

5. The automatically weldable battery cell module according to claim 1, characterized in that: The multiple battery cell modules are arranged in multiple rows arranged longitudinally, and the aforementioned battery cell connection and signal acquisition components are also provided between two adjacent rows of battery cell modules.

6. An automatic welding assembly method for an automatically weldable battery cell module according to claims 1-5, characterized in that: The following steps are included: (1) Manufacturing and forming a conductive bus, an insulating fixing frame, and an FPC assembly, and welding the conductive bus with corresponding battery cells to form a plurality of battery cell modules, and fixing the FPC assembly on the insulating fixing frame to form a battery cell connection and signal acquisition assembly; (2) Multiple cell modules are arranged side by side horizontally, and the cell connection and signal acquisition components are placed in the accommodating grooves, so that each connecting piece is respectively against the corresponding welding part and fixed and connected by laser welding.

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