New energy battery cooling plate soldering lug welding structure
By using annular aluminum welding sheets and high-frequency coil heating in the welding of new energy battery cooling plates, the problems of welding inhomogeneity and temperature field consistency were solved, achieving efficient welding results and improving welding quality and stability.
Patent Information
- Application Number
- CN202423195748.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In the welding process of existing new energy battery cooling plates, the uneven melting of flux-cored welding wire leads to poor welding quality, high requirements for temperature field consistency, and problems such as pinholes and trapped air at the welding position are prone to occur.
Using an annular aluminum welding sheet, with an upper flange for guiding insertion and a lower flange for limiting, combined with high-frequency coil heating, stable welding of the harmonica tube cooling plate and current collector is achieved, the solder flows in an orderly manner, and the temperature field consistency requirements are reduced.
It improves welding quality, reduces the proportion of pinholes at the welding position, ensures full filler of the solder, increases the welding rate, and makes the welding process more stable.
Smart Images
Figure CN223588515U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to new energy automobile battery cooling plate's welding technical field especially relates to a new energy battery cooling plate welding piece welding structure. BACKGROUND
[0002] New energy battery cooling plate uses high frequency welding mode to adopt flux-cored wire high temperature melting to weld together as the harmonica pipe cooling plate and current collector of aluminium piece, flux-cored wire improves slag fluidity on one hand, reduces welding spatter, improves arc stability, thereby optimizes welding process performance, can improve high deposition metal high temperature oxidation resistance and corrosion resistance on the other hand, makes weld have excellent heat crack resistance and low temperature toughness.
[0003] But the uniformity of flux-cored wire melting process is poor, and the temperature field consistency during welding is high, when the objective conditions such as environmental temperature, operator operation, equipment operation air volume make the temperature field unable to meet, the welding position usually appears the situation such as poor welding quality, sand eye, trapped gas. Therefore, it is very important to solve this. SUMMARY
[0004] Therefore, the utility model provides a new energy battery cooling plate welding piece welding structure to solve the problems in the background art.
[0005] In order to achieve the above purpose, the utility model provides a new energy battery cooling plate welding piece welding structure, including harmonica pipe cooling plate and current collector, the harmonica pipe cooling plate and current collector are welded together through welding piece, the welding piece is annular, the welding piece is aluminium welding piece, the bottom end of harmonica pipe cooling plate is inserted into the top of welding piece, the bottom of welding piece is inserted into the top of current collector, so that the harmonica pipe cooling plate, welding piece and current collector are communicated together.
[0006] Preferably, the harmonica pipe cooling plate and welding piece are gap fitted, and the welding piece and current collector are gap fitted.
[0007] Preferably, the top end of welding piece is provided with an upper turning edge outward around the periphery, and the upper turning edge is open for guiding insertion of the bottom end of harmonica pipe cooling plate.
[0008] Preferably, welding material is filled between the upper turning edge and the harmonica pipe cooling plate.
[0009] Preferably, the bottom end of welding piece is provided with a lower turning edge inward around the periphery, and the lower turning edge is used for limiting the bottom end of harmonica pipe cooling plate after insertion.
[0010] Preferably, the top end of current collector is provided with an assembly groove, the bottom of welding piece is inserted into the assembly groove, and the welding piece and the assembly groove are gap fitted.
[0011] The utility model discloses an advantageous effect: the utility model discloses through setting up the welding piece, and the harmonica pipe cooling plate is inserted to the welding piece, and the welding piece is inserted to the current collector again, and the assembly of harmonica pipe and current collector is realized like this, and the welding piece is welded together again through high -frequency coil heating and is welded, and harmonica pipe and current collector are stably welded together. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is further detailed to the utility model with specific implementation examples.
[0013] Fig. 1 The utility model discloses a harmonica pipe cooling plate and current collector's welding structure;
[0014] Fig. 2 The utility model discloses a harmonica pipe cooling plate and current collector's welding structure;
[0015] Fig. 3 The utility model discloses a harmonica pipe cooling plate and current collector's welding structure.
[0016] Marked as in the drawing:
[0017] 1-harmonica pipe cooling plate, 2-current collector, 3-welding piece, 4-upturn, 5-downturn, 6-assembly groove, 7-welding base, 8-harmonica pipe cooling plate clamping jaw, 9-high -frequency coil, 10-high -frequency welder. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is further detailed to the utility model with specific implementation examples.
[0019] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the present application should be understood as their common meanings to those skilled in the art to which the present application pertains. The terms "first", "second" and similar terms used in the present application do not represent any order, number or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms cover the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.
[0020] As shown in Figs. 1 to 3 A new energy battery cooling plate welding sheet welding structure, including harmonica tube cooling plate 1 and current collector 2, the harmonica tube cooling plate 1 and current collector 2 are welded together by welding sheet 3, the welding sheet 3 is annular, the welding sheet 3 is made of 4047 aluminum, the bottom end of the harmonica tube cooling plate 1 is inserted into the top of the welding sheet 3, and the bottom of the welding sheet 3 is inserted into the top of the current collector 2, so that the harmonica tube cooling plate 1, the welding sheet 3 and the current collector 2 are communicated together. The harmonica tube cooling plate 1 and the welding sheet 3 are gap matched, and the welding sheet 3 and the current collector 2 are gap matched. By setting the annular welding sheet 3, the harmonica tube cooling plate 1 is inserted into the welding sheet 3, and the welding sheet 3 is inserted into the current collector 2, so that the harmonica tube 1 and the current collector 2 are assembled, and then the welding sheet 3 is welded by high-frequency coil heating, so that the harmonica tube 1 and the current collector 2 are stably welded together.
[0021] The upper turning edge 4 is provided outwardly around the top end of the welding sheet 3, and is in an open shape for guiding the insertion of the bottom end of the harmonica cooling plate 1, so that the assembly is convenient and smooth, and the solder is filled in the upper turning edge 4 and the harmonica cooling plate 1 for welding, so that the flow direction of the solder after melting is guided, and the proportion of sand holes at the welding position of the cooling plate is reduced. The lower turning edge 5 is provided inwardly around the bottom end of the welding sheet 3, and is used for limiting the insertion of the bottom end of the harmonica cooling plate 1. The assembly groove 6 is provided at the top end of the current collector 2, the bottom of the welding sheet 3 is inserted into the assembly groove 6, and the welding sheet 3 is gap-fitted with the assembly groove 6. The welding sheet 3 is provided with the lower turning edge 5 for limiting the insertion of the harmonica cooling plate 1, so that the welding sheet 3 and the harmonica cooling plate 1 are stably assembled together, and the welding sheet 3 is assembled with the assembly groove 6 of the current collector 2, so that they are tightly assembled together. After being assembled together, the welding sheet 3 and the solder are heated and melted by the high-frequency coil, so that the harmonica cooling plate 1 and the current collector 2 are welded together, the welding rate is increased, the solder flow is orderly during the welding process, the consistency requirement of the solder to the temperature field is reduced, the solder filling process is full, and the trapped gas is easily discharged.
[0022] The high-frequency welding equipment is used for welding, and includes a welding base 7, a harmonica cooling plate clamping jaw 8 and a high-frequency coil 9. The welding base 7 is provided with a placement groove at the top for placing the current collector 2, the harmonica cooling plate clamping jaw 8 clamps the harmonica cooling plate 1, and the high-frequency coil 9 is located at the welding sheet 3 and is connected with the high-frequency welding machine 10 for heating the welding sheet 3. First, the current collector 2 is placed in the placement groove of the welding base 7, then the bottom end of the harmonica cooling plate is inserted into the welding sheet, and then the two are inserted into the assembly groove 6 of the current collector 2. The harmonica cooling plate 1 is clamped tightly by the harmonica cooling plate clamping jaw 8, and finally the high-frequency welding machine 10 is started to generate a magnetic field by the high-frequency coil 9 to heat the workpiece. The welding sheet 3 is made of 4047 aluminum, which has a low melting point and good fluidity, so that the welding is completed after the welding sheet 3 melts and cools and solidifies.
[0023] Those skilled in the art should understand that the above discussion of any embodiment is only exemplary and is not intended to imply that the scope of the utility model is limited to these examples; the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the utility model as described above. In order to be brief, they are not provided in details. Any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A welding structure for a cooling plate of a new energy battery, comprising a harmonica tube cooling plate (1) and a current collector (2), characterized in that, The harmonica tube cooling plate (1) and the current collector (2) are connected together by welding plates (3); the welding plates (3) are in the shape of a ring and are made of 4047 aluminum. The bottom end of the harmonica tube cooling plate (1) is inserted into the top of the welding plate (3), and the bottom of the welding plate (3) is inserted into the top of the current collector (2), so that the harmonica tube cooling plate (1), the welding plate (3) and the current collector (2) are connected together.
2. The welding structure of a new energy battery cooling plate according to claim 1, characterized in that: The harmonica tube cooling plate (1) is fitted with the welding piece (3) with a clearance, and the welding piece (3) is fitted with the current collector (2) with a clearance.
3. The welding structure of a new energy battery cooling plate according to claim 2, characterized in that: The top edge of the welding sheet (3) is provided with an upward flange (4) on all four sides. The upward flange (4) is open and used for guiding the insertion of the harmonica tube cooling plate (1) at the bottom.
4. The welding structure of a new energy battery cooling plate according to claim 3, characterized in that: Solder is filled between the upper flange (4) and the harmonica tube cooling plate (1).
5. The welding structure of a new energy battery cooling plate according to claim 4, characterized in that: The bottom edge of the welding sheet (3) is provided with a downward flange (5) on all four sides, which is used to limit the insertion of the bottom edge of the harmonica tube cooling plate (1).
6. The welding structure of a new energy battery cooling plate according to claim 5, characterized in that: The top of the current collector (2) is provided with an assembly groove (6), and the bottom of the welding piece (3) is inserted into the assembly groove (6), with the welding piece (3) and the assembly groove (6) fitting together with a clearance.