Liquid inlet bin of ultra-thin lithium battery electrolytic copper foil crude foil engine
By employing a design with two rows of staggered inlet pipes and valves to regulate flow in the liquid inlet chamber of the ultra-thin lithium-ion electrolytic copper foil production machine, the problem of uneven liquid inlet in the traditional design has been solved, thus improving production quality.
Patent Information
- Application Number
- CN202520158759.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-23
AI Technical Summary
The traditional liquid inlet design of foil making machines results in uneven liquid feeding of ultra-thin lithium-ion electrolytic copper foil, causing bubble yarn problems and making it difficult to adjust the surface density uniformity.
The design employs two rows of parallel and staggered inlet pipes, with a valve installed on each inlet pipe. The flow rate is adjusted by the staggered valves, reducing flow rate differences and improving the uniformity of surface density.
It effectively reduces the generation of bubble wrap and improves the production quality of ultra-thin lithium-ion electrolytic copper foil.
Smart Images

Figure CN223766458U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium-ion battery electrolytic copper foil production technology, and in particular to an inlet tank for an ultra-thin lithium-ion battery electrolytic copper foil production machine. Background Technology
[0002] Lithium-ion battery electrolytic copper foil is a high-performance conductive material, and due to its electrolytic treatment, its surface is not easily oxidized, making it widely used in various fields. Ultra-thin lithium-ion battery electrolytic copper foil, due to its thin and light size, has become the mainstream product. However, the problem of "bubbly" appearance in ultra-thin lithium-ion battery electrolytic copper foil has always been a difficult problem for lithium-ion battery electrolytic copper foil manufacturers. The uniformity of electrolyte inlet directly affects the formation of "bubbly" appearance, and the design of the electrolyte inlet chamber of the foil-making machine determines this uniformity. Currently, traditional foil-making machines use a row of straight, parallel inlet pipes, each with a valve to regulate the flow rate of a single pipe, with a valve gap greater than 10cm between pipes. However, this structure leads to uneven flow rates between pipes and at the center of the pipe, making it difficult to adjust the areal density uniformity. The large differences in areal density between adjacent pipes due to variations in electrolyte flow rate result in the "bubbly" appearance problem. Utility Model Content
[0003] The purpose of this invention is to overcome the defects of the existing technology and provide a liquid inlet chamber for an ultra-thin lithium-ion electrolytic copper foil production machine.
[0004] The objective of this utility model can be achieved through the following technical solutions:
[0005] A liquid inlet chamber for an ultra-thin lithium-ion electrolytic copper foil production machine, the liquid inlet chamber comprising a main body; a liquid inlet port is provided on the side of the main body; two rows of evenly distributed liquid inlets are provided on the liquid inlet port; a liquid inlet pipe is connected to each liquid inlet; a liquid supply pipe is connected to the bottom of the liquid inlet pipe; the liquid inlet pipes are arranged in two rows, front and back, and each liquid inlet pipe is parallel to the others.
[0006] Furthermore, the inlet pipe is equipped with a valve; the valves on the front and rear rows of inlet pipes are staggered vertically.
[0007] Furthermore, the liquid inlet chamber is a hollow circular body.
[0008] Furthermore, the installation gap between the inlet pipes in the same row is greater than 10cm.
[0009] Compared with the prior art, the present invention has the following advantages:
[0010] This invention effectively solves the problems of large differences in liquid flow between parallel and staggered inlet pipes and large fluctuations in surface density at adjacent positions when adjusting surface density by setting up two rows of parallel and staggered inlet pipes, with each inlet pipe equipped with a separate valve to regulate the liquid flow rate. This greatly reduces the generation of bubble yarn and improves the production quality of ultra-thin lithium-ion electrolytic copper foil. Attached Figure Description
[0011] Figure 1 A schematic diagram of the liquid inlet chamber structure provided by this utility model;
[0012] Figure 2 This is a schematic diagram of the liquid inlet structure provided by this utility model.
[0013] The labels in the diagram indicate:
[0014] 1. Liquid inlet body; 2. Liquid inlet port; 3. Liquid inlet; 4. Liquid inlet pipe; 5. Liquid supply pipe; 6. Valve. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0018] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model 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 utility model.
[0019] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0020] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0021] Example
[0022] like Figure 1 and 2 As shown, an ultra-thin lithium-ion electrolytic copper foil forming machine has a liquid inlet chamber. The liquid inlet chamber includes a hollow circular main body 1. A liquid inlet 2 is provided on the side of the main body 1, and the liquid inlet 2 is elongated. Two rows of evenly distributed liquid inlets 3 are provided on the liquid inlet 2, with each inlet 3 staggered vertically. A liquid inlet pipe 4 is connected to each liquid inlet 3. A supply pipe 5, which is cylindrical, is connected to the bottom of the liquid inlet pipe 4 to provide electrolyte. The liquid inlet pipe 4 is arranged front-to-back. The inlet pipes are arranged in two rows, with each inlet pipe 4 parallel to the others. The installation gap between the inlet pipes 4 in the same row is greater than 10cm. This effectively solves the problem of large differences in liquid flow rate between straight inlet pipes 4 in a row, and large fluctuations in surface density at adjacent positions when adjusting surface density. This greatly reduces the generation of bubble wrap and improves the production quality of ultra-thin lithium-ion electrolytic copper foil. Each inlet pipe 4 is equipped with a valve 6 for individually adjusting the liquid flow rate of each inlet pipe 4. The valves 6 on the two rows of inlet pipes 4 are staggered vertically so that they do not interfere with each other.
[0023] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A liquid inlet bin of an extremely thin lithium battery electrolytic copper foil maker, characterized in that, The liquid inlet bin comprises a liquid inlet bin body (1); the liquid inlet bin body (1) is provided with a liquid inlet bin opening (2) on the side; the liquid inlet bin opening (2) is provided with two rows of evenly distributed liquid inlets (3); each liquid inlet (3) is connected with a liquid inlet pipe (4); the bottom of the liquid inlet pipe (4) is connected with a liquid supply pipe (5); the liquid inlet pipes (4) are arranged in front and back rows, and each liquid inlet pipe (4) is parallel to each other.
2. The liquid inlet bin of the very thin lithium battery electrolytic copper foil maker according to claim 1, wherein, The liquid inlet pipe (4) is provided with a valve (6); the valves (6) on the front and back rows of liquid inlet pipes (4) are staggered up and down.
3. The liquid inlet bin of the very thin lithium battery electrolytic copper foil maker according to claim 1, wherein, The liquid inlet bin body (1) is a hollow circular body.
4. The liquid inlet bin of the very thin lithium battery electrolytic copper foil maker according to claim 1, wherein, The installation gap between the liquid inlet pipes (4) in the same row is greater than 10 cm.