Chip structure
By setting a protrusion structure in the alignment area of the welding plate, the problem of welding plate slippage during ultrasonic welding was solved, achieving higher welding quality and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-03-13
AI Technical Summary
Existing welding plates are prone to slippage during ultrasonic welding, leading to cracking or incomplete welds.
Several first and second protrusions are set in the alignment area of the welding plate. These protrusions constrain each other in the welding vibration direction and the vertical direction, increasing the friction and positioning accuracy during welding, and ensuring the accurate positioning of the welding plate.
This effectively avoids relative displacement of the welding plates during the welding process, improves welding quality, and prevents cracking and incomplete welding.
Smart Images
Figure CN223993374U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of secondary batteries, specifically to a plate structure. Background Technology
[0002] In the field of rechargeable batteries, battery module connections and energy storage power stations all require electrical connections via copper-aluminum batteries or copper-aluminum busbars. Ultrasonic welding is generally used to connect batteries or copper-aluminum busbars. However, existing batteries have smooth, flat surfaces, which can easily slip during ultrasonic welding, leading to problems such as battery cracking and incomplete welds. Utility Model Content
[0003] To address the aforementioned problems, this application provides a plaque structure.
[0004] This application provides a plaster structure, including a first plaster and a second plaster. A first alignment region is disposed on one side of the first plaster, and a second alignment region is disposed on one side of the second plaster. A plurality of first protrusions are disposed in the first alignment region, and a plurality of second protrusions are disposed in the second alignment region.
[0005] When welding the first and second tabs, the first and second protrusions are mutually constrained in the welding vibration direction.
[0006] In some embodiments, the first bump and the second bump are simultaneously constrained to each other in a second direction perpendicular to the welding vibration direction.
[0007] In some embodiments, a plurality of the first bumps are staggered or arrayed in the first alignment region.
[0008] In some embodiments, a plurality of the second bumps are staggered or arrayed in the second alignment region.
[0009] In some embodiments, the first protrusion is arranged in the shape of a frustum, and a plurality of the first protrusions are staggered in the first alignment region.
[0010] The second protrusion is arranged in the shape of a truncated quadrangular pyramid, and several of the second protrusions are staggered and distributed in the second alignment region.
[0011] In some embodiments, the height of the first bump and the second bump is 0.2mm to 0.5mm.
[0012] In some embodiments, the first protrusion and the second protrusion are respectively obtained by embossing.
[0013] In some embodiments, the first protrusion is fixedly connected to the first pad, and the second protrusion is fixedly connected to the second pad.
[0014] The technical solution of this application has at least the following advantages:
[0015] 1. By setting several first protrusions and several second protrusions that can cooperate with each other on the first and second plates to be ultrasonically welded, when welding the first and second plates, the first and second protrusions can constrain each other after cooperation, increasing the friction during welding, ensuring the positioning accuracy of the plates, and improving the welding yield. On the one hand, the first and second protrusions constrain each other in the welding vibration direction, thereby avoiding relative displacement of the first and second plates in the welding vibration direction, which helps to ensure welding quality. On the other hand, the first and second protrusions constrain each other in both the welding vibration direction and a second direction perpendicular to the welding vibration direction. Even if the placement direction of the first and second plates or the vibration direction of the welding head changes, there will be no relative displacement between the first and second plates, still ensuring the welding effect and avoiding problems such as plate cracking and incomplete welding. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a top view of a flap structure provided in an exemplary embodiment of this application;
[0018] Figure 2 This is a schematic diagram of the structure of a first plaster provided in an exemplary embodiment of this application;
[0019] Figure 3 This is a top view of a second bar provided in an exemplary embodiment of this application;
[0020] Figure 4 This is a front view of a first and second pad after alignment, provided in an exemplary embodiment of this application;
[0021] Figure 5 This is a top view provided by another exemplary embodiment of this application, illustrating the shapes of the first and second protrusions;
[0022] Figure 6 This is a top view provided by another exemplary embodiment of this application for illustrating the shapes of the first and second bumps.
[0023] Explanation of reference numerals in the attached drawings: 1. First pad; 11. First alignment region; 2. Second pad; 21. Second alignment region; 3. First protrusion; 4. Second protrusion. Detailed Implementation
[0024] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, 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 application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0027] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.
[0028] This application provides a weld plate structure, as shown in the figure, which includes a first weld plate 1 and a second weld plate 2. The first weld plate 1 and the second weld plate 2 can be made of the same metal or dissimilar metals. For example, the first weld plate 1 and the second weld plate 2 can be copper weld plates and aluminum weld plates, respectively, or both can be weld plates of the same material. A first alignment region 11 is provided on one side of the first weld plate 1, and a second alignment region 21 is provided on one side of the second weld plate 2. When the first weld plate 1 and the second weld plate 2 are welded together, the first alignment region 11 is aligned with the second alignment region 21.
[0029] Reference Figure 1A plurality of first protrusions 3 are disposed in the first alignment region 11, and a plurality of second protrusions 4 are correspondingly disposed in the second alignment region 21. The heights of the first protrusions 3 and second protrusions 4 can be from 0.2 mm to 0.5 mm and can be obtained by embossing. When the first alignment region 11 is aligned with the second alignment region 21 and the first plate 1 and second plate 2 are ultrasonically welded, the first protrusions 3 and second protrusions 4 constrain each other in the welding vibration direction, thereby preventing displacement of the first plate 1 and second plate 2 during welding and ensuring welding effectiveness. Simultaneously, the first protrusions 3 and second protrusions 4 can also constrain each other in a second direction perpendicular to the welding vibration direction. Even if the placement direction of the first plate 1 and second plate 2 or the vibration direction of the welding head changes, there will be no relative displacement between the first plate 1 and second plate 2, ensuring welding effectiveness and avoiding problems such as plate cracking and incomplete welding.
[0030] In this arrangement, several first protrusions 3 can be distributed in the first alignment region 11 in an alternating or arrayed manner, while second protrusions 4 can also be distributed in the second alignment region 21 in an alternating or arrayed manner. After the first alignment region 11 and the second alignment region 21 are aligned, adjacent first protrusions 3 and second protrusions 4 can cooperate and lock together.
[0031] In the embodiments of this application, using Figure 2 and Figure 3 The explanation will be based on the first tablet 1 and the second tablet 2 in the formula. Figure 2 and Figure 3 As shown, a plurality of first protrusions 3 arranged in a frustum shape are staggered in the first alignment region 11 of the first plate 1, and a plurality of second protrusions 4 arranged in a frustum shape are staggered in the second alignment region 21 of the second plate 2, and the first protrusions 3 and the second protrusions 4 are identical in size and shape. After aligning the first alignment region 11 and the second alignment region 21, the first protrusions 3 are engaged in the space between at least two adjacent second protrusions 4, and the second protrusions 4 are engaged in the space between at least two adjacent first protrusions 3. During the welding process, as... Figure 4 As shown, the first welding plate 1 and the second welding plate 2 are placed horizontally, the ultrasonic welding head is set vertically, and the ultrasonic welding head, the first welding plate 1 and the second welding plate 2 are distributed from top to bottom. At this time, the welding vibration direction and the second direction are both set horizontally.
[0032] In another embodiment, the first protrusion 3 on the first pad 1 and the second protrusion 4 on the second pad 2 can also be as follows: Figure 5 As shown. The first protrusion 3 is arranged in a quadrangular prism shape and arrayed in the first alignment region 11 of the first protrusion 3. The second protrusion 4 is also arrayed in the second alignment region 21 of the second protrusion 4, and its cross-section is arranged in a cross shape.
[0033] In another embodiment, the first protrusion 3 on the first pad 1 and the second protrusion 4 on the second pad 2 can also be as follows: Figure 6 As shown, the first protrusions 3 are staggered on the first plate 1, and the second protrusions 4 are arrayed on the second plate 2. Alternatively, the shapes of the first protrusions 3 and the second protrusions 4 can be other pyramidal shapes, irregular shapes, etc., and after the first alignment region 11 and the second alignment region 21 are aligned, the adjacent first protrusions 3 and second protrusions 4 can cooperate and lock together.
[0034] This application provides a welding plate structure in which a plurality of first protrusions 3 and a plurality of second protrusions 4 are respectively provided on the first welding plate 1 and the second welding plate 2 that need to be ultrasonically welded. When welding the first welding plate 1 and the second welding plate 2, the first protrusions 3 and the second protrusions 4 can constrain each other after they cooperate, increasing the friction force during welding, ensuring the positioning accuracy of the welding plate, and improving the welding yield. The first protrusions 3 and the second protrusions 4 constrain each other in the welding vibration direction and in a second direction perpendicular to the welding vibration direction, thereby avoiding the relative displacement of the first welding plate 1 and the second welding plate 2 in the welding vibration direction, which helps to ensure the welding quality.
[0035] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.
Claims
1. A tablet structure, characterized by The first bar (1) is provided with a first alignment area (11) on one side, and the second bar (2) is provided with a second alignment area (21) on one side, wherein a plurality of first protrusions (3) are arranged in the first alignment area (11), and a plurality of second protrusions (4) are arranged in the second alignment area (21). When the first bar (1) and the second bar (2) are welded, the first protrusions (3) and the second protrusions (4) are constrained in the welding vibration direction.
2. The wafer structure of claim 1, wherein The first protrusions (3) and the second protrusions (4) are simultaneously constrained in a second direction perpendicular to the welding vibration direction.
3. The wafer structure of claim 1, wherein The first protrusions (3) are staggered or arrayed in the first alignment area (11).
4. The wafer structure of claim 3, wherein The second protrusions (4) are staggered or arrayed in the second alignment area (21).
5. The wafer structure of claim 4, wherein The first protrusions (3) are arranged in a quadrangular frustum shape, and a plurality of the first protrusions (3) are staggered in the first alignment area (11). The second protrusions (4) are arranged in a quadrangular frustum shape, and a plurality of the second protrusions (4) are staggered in the second alignment area (21).
6. The wafer structure of claim 1, wherein The height of the first protrusions (3) and the second protrusions (4) is 0.2mm-0.5mm.
7. The ribbon structure of claim 1, wherein The first protrusions (3) and the second protrusions (4) are respectively processed by an embossing die.
8. The ribbon structure of claim 1, wherein The first protrusions (3) are fixedly connected to the first bar (1), and the second protrusions (4) are fixedly connected to the second bar (2).