Corrosion-resistant impact net plate grid

Abstract

The utility model relates to the technical field of storage batteries, in particular to a corrosion-resistant mesh grid. Comprising an upper frame, a lower frame, tabs, transverse ribs and vertical ribs, the transverse ribs and the vertical ribs are distributed in a staggered manner, the widths of the vertical ribs are sequentially reduced from top to bottom, and the widths of the transverse ribs are also sequentially reduced from top to bottom; the width of the upper frame is greater than that of the lower frame; the overall appearance of the transverse ribs is conical; the grid is punched and formed by a punching machine. The utility model provides the corrosion-resistant impact net plate grid which has the advantages of corrosion resistance, capability of increasing the maximum current, stable structure, long service life, high production efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of storage batteries, in particular to a corrosion-resistant punched mesh grid. Background Art

[0002] Lead-acid batteries for electric bicycles have been developed for over 30 years. With the advancement of assembly automation, grid manufacturing technology has also advanced dramatically. The existing gravity casting process has been gradually replaced by continuous casting and rolling with punching. The positive grids of lead-acid batteries often suffer from oxidative corrosion during use. The corrosion resistance of the grid determines the battery's high current characteristics and cycle life. This project aims to develop a corrosion-resistant punching grid to improve these performance characteristics of lead-acid batteries.

[0003] Chinese patent CN207368094U discloses a novel grid structure with excellent return flow and corrosion resistance. The structure comprises a generally rectangular grid frame with tabs on its upper horizontal edge. The structure is characterized by a vertical width that gradually increases from the middle to the top, with the width of the upper horizontal edge of the grid frame being substantially equal to the width of the widest point at the upper vertical edge of the grid frame. The gradual width of the vertical frame of the utility model enhances the corrosion resistance of the grid and significantly strengthens the flow collection effect.

[0004] However, the grid of this technical solution is easily corroded, resulting in poor conductivity and short service life. Utility Model Content

[0005] The purpose of the present utility model is to address the shortcomings of the existing technology and provide a corrosion-resistant punched mesh grid. By reducing the width of the vertical ribs from top to bottom and the width of the horizontal ribs from top to bottom, the grid structure is made more stable, the current distribution inside the battery is improved, and the problem of corrosion of the grid in the existing technology is solved.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A corrosion-resistant punched mesh grid comprises an upper frame, a lower frame, tabs, transverse ribs and vertical ribs, wherein the transverse ribs are staggered with the vertical ribs, the width of the vertical ribs decreases from top to bottom, and the width of the transverse ribs decreases from top to bottom.

[0008] Preferably, the width of the upper frame is greater than the width of the lower frame.

[0009] Preferably, the transverse ribs are tapered in shape as a whole.

[0010] Preferably, the grid is formed by punching.

[0011] Preferably, the grid plate surface has a thickness range of 0.8 mm to 1.5 mm and a height range of 135 mm to 140 mm.

[0012] Preferably, the height of the tab is in the range of 10 mm to 15 mm.

[0013] Preferably, the width of the vertical ribs ranges from 0.5 mm to 2.5 mm.

[0014] Preferably, there are 7 vertical ribs in total, the width of the vertical ribs connecting the upper frame is 2-2.5 mm, and the width of the vertical ribs connecting the lower frame is 0.5-1.0 mm.

[0015] Preferably, the width of the transverse ribs ranges from 0.5 mm to 1.5 mm.

[0016] Preferably, there are 11 transverse ribs in total, 5 of which are 1.2-1.5 mm in width from the top, followed by 3 ribs with a width of 1.0-1.2 mm, and the remaining 3 ribs with a width of 0.5-1.0 mm.

[0017] The beneficial effects of the present invention are:

[0018] (1) The utility model gradually reduces the width of the vertical and horizontal ribs in order to improve the maximum current and cycle life of the product. The upper frame is wider than the lower frame to provide a larger contact area and stronger mechanical support, making it more corrosion-resistant, thereby ensuring the service life of the grid.

[0019] (2) The utility model provides better mechanical support by having the transverse ribs in a conical shape, thereby enhancing the structural strength of the tabs and reducing the risk of damage during production, transportation and use.

[0020] (3) The utility model is formed by punching with a punch press, because punching is suitable for mass production, can achieve continuous production, and has high efficiency. In addition, punching can reduce environmental pollution and save energy and protect the environment.

[0021] In summary, the utility model has the advantages of corrosion resistance, ability to increase maximum current, stable structure, long service life and high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the appearance of the vertical reinforcement of the utility model.

[0024] Figure numerals: 1-upper frame; 2-lower frame; 3-ear; 4-horizontal rib; 5-vertical rib. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0027] Example

[0028] like Figure 1 and Figure 2 As shown, this embodiment provides a corrosion-resistant punched mesh grid, including: an upper frame 1, a lower frame 2, a tab 3, a horizontal rib 4 and a vertical rib 5, wherein the horizontal rib 4 and the vertical rib 5 are staggered, and the width of the vertical rib 5 decreases from top to bottom, and the width of the horizontal rib 4 also decreases from top to bottom. The gradual reduction in the width of the vertical rib 5 and the horizontal rib 4 is to optimize material usage and improve the current distribution inside the battery, that is, to improve the maximum current and cycle life of the product.

[0029] The width of the upper frame 1 is greater than that of the lower frame 2. The width of the upper frame 1 is wider to provide a larger contact area and stronger mechanical support, making it more corrosion-resistant, thereby ensuring the service life of the grid.

[0030] At the same time, the overall shape of the transverse rib 4 is conical, which can provide better mechanical support, enhance the structural strength of the pole ear 3, and reduce the risk of damage during production, transportation and use. The conical transverse rib 4 helps to improve the current distribution inside the battery, especially during high-rate discharge. The current density may be uneven in different parts of the pole ear 3. The conical design helps to distribute the current more evenly, thereby improving the discharge performance of the battery.

[0031] In this embodiment, the grid is formed by punching, because punching is suitable for mass production, can achieve continuous production, and is highly efficient. In addition, punching can reduce environmental pollution and is energy-saving and environmentally friendly.

[0032] In this embodiment, the grid plate surface thickness ranges from 0.8mm to 1.5mm, preferably 1.1mm, and the height ranges from 135mm to 140mm, preferably 138mm, to ensure the smooth use of the grid to the greatest extent.

[0033] In this embodiment, the height of the tab 3 ranges from 10 mm to 15 mm, preferably 14 mm. The tab 3 is usually composed of a composite of a metal strip and a film. The metal strip is responsible for conductivity, while the film serves as insulation and sealing to ensure safety. A larger tab 3 can provide greater current transmission capacity, thereby improving the high-rate discharge performance of the battery.

[0034] In this embodiment, the width of the vertical rib 5 is in the range of 0.5 mm to 2.5 mm.

[0035] In this embodiment, there are 7 vertical ribs 5 in total. The width of the vertical ribs 5 connecting the upper frame 1 is 2-2.5 mm, preferably 2.3 mm, and the width of the vertical ribs 5 connecting the lower frame 2 is 0.5-1.0 mm, preferably 0.9 mm.

[0036] Of course, the width of the transverse rib 4 is in the range of 0.5 mm to 1.5 mm.

[0037] In addition, there are 11 transverse ribs 4, 5 of which are from the top, with a width of 1.2-1.5mm, preferably 1.3mm, followed by 3 with a width of 1.0-1.2mm, preferably 1.1mm, and the remaining 3 with a width of 0.5-1.0mm, preferably 0.9mm, which can ensure the structural strength of the grid without affecting the transmission of current.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A corrosion-resistant punched mesh grid, comprising: The upper frame, the lower frame, the tabs, the horizontal ribs and the vertical ribs are characterized in that the horizontal ribs and the vertical ribs are staggered, the width of the vertical ribs decreases from top to bottom, and the width of the horizontal ribs decreases from top to bottom.

2. The corrosion-resistant punched mesh grid according to claim 1, characterized in that: The width of the upper frame is greater than the width of the lower frame.

3. The corrosion-resistant punched mesh grid according to claim 1, characterized in that: The overall shape of the transverse rib is conical.

4. The corrosion-resistant punched mesh grid according to claim 1, characterized in that: The grid is stamped.

5. The corrosion-resistant punched mesh grid according to claim 1, characterized in that: The grid surface thickness ranges from 0.8mm to 1.5mm, and the height ranges from 135mm to 140mm.

6. The corrosion-resistant punched mesh grid according to claim 1, characterized in that: The height of the tab is in the range of 10 mm to 15 mm.

7. The corrosion-resistant punched mesh grid according to claim 1, characterized in that: The width of the vertical ribs ranges from 0.5 mm to 2.5 mm.

8. The corrosion-resistant punched mesh grid according to claim 1, characterized in that: There are 7 vertical ribs in total, the width of the vertical ribs connecting the upper frame is 2-2.5mm, and the width of the vertical ribs connecting the lower frame is 0.5-1.0mm.

9. The corrosion-resistant punched mesh grid according to claim 1, characterized in that: The width of the transverse ribs ranges from 0.5 mm to 1.5 mm.

10. The corrosion-resistant punched mesh grid according to claim 9, characterized in that: There are 11 transverse ribs in total, 5 of which are 1.2-1.5 mm in width from the top, followed by 3 ribs with a width of 1.0-1.2 mm, and the remaining 3 ribs with a width of 0.5-1.0 mm.

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