Acid discharging device in charging and discharging process of lead-acid storage battery

Abstract

The utility model relates to an acid discharging device in the charging and discharging process of a lead-acid storage battery, which comprises an acid liquor storage container, a liquid outlet structure matched with an acid adding port of the battery is arranged at the lower part of the container, and the acid liquor storage container is provided with a space for accommodating acid liquor required by the formation process of the lead-acid storage battery; the shape of the drainage component is set to be a sheet structure capable of effectively guiding the acid liquor to flow, the drainage component can be mounted at the liquor outlet structure of the acid liquor storage container, and after the drainage component is mounted, an acid discharging path for the acid liquor to flow from the interior of the acid liquor storage container to the battery unit cells through the drainage component is formed. According to the utility model, unsmooth acid feeding caused by the problem of the gas guide tube can be effectively avoided, the smooth degree of acid feeding of the battery is greatly improved, the oxidation-reduction reaction in the battery can be carried out timely and smoothly, the formation efficiency and quality of the battery are improved, the consistency between single cells of the battery is effectively guaranteed, and the production efficiency of the battery is improved. Therefore, the performance and quality of the whole battery are improved, and the service life of the battery is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of lead-acid battery production technology, and in particular to an acid-adding device during the charging and discharging process of a lead-acid battery. Background Technology

[0002] Lead-acid batteries enjoy sustained and stable growth in demand worldwide due to their numerous advantages, including stable voltage, safety and reliability, wide applicability, abundant raw materials, and high recyclability. They dominate traditional applications such as backup power supplies, electric bicycles, UPS systems, and telecommunications base stations; and they also demonstrate enormous development potential in emerging fields such as distributed energy storage systems. Currently, they are the world's most produced and widely used battery type.

[0003] In the charging process of storage batteries (internal formation batteries), negative pressure acid addition is the first step. To ensure a sufficient acid supply during charging and discharging, the amount of acid added is usually set higher than the actual acid required for battery formation, and the excess acid is removed in a subsequent acid extraction process. Therefore, batteries are generally equipped with an acid reservoir during the acid addition process. After acid addition is completed, the battery is transferred to a water tank in the charging area for charging and formation operations. To ensure that the acid can flow smoothly into the battery during the formation process (only with smooth acid flow can the oxidation-reduction reaction proceed normally inside the battery), workers usually place a venting tube (such as a gas duct) in the acid reservoir. Figure 1 (As shown). The main function of the vent tube is to expel the gas generated in the battery cell, thereby creating a certain pressure difference inside the acid reservoir and promoting the smooth flow of acid in the reservoir.

[0004] However, manually placing the venting tubes has several drawbacks in actual production. First, due to the fast pace of the production line, workers may not place the venting tubes in time, preventing gas from escaping from the battery cells and thus affecting the acid delivery process. Second, the venting tubes are easily misplaced; if placed incorrectly, they not only fail to promote acid delivery but may also obstruct acid flow or even cause backflow. Furthermore, the venting tubes themselves may become blocked due to various reasons (such as impurities, bending, or deformation), also hindering acid delivery to the battery cells. These problems ultimately lead to differences in formation effects between battery cells, severely affecting battery consistency and reducing product quality. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing an acid-releasing device during the charging and discharging process of lead-acid batteries. The specific technical solution is as follows:

[0006] A device for discharging acid during the charging and discharging process of a lead-acid battery.

[0007] It includes an acid storage container with space for containing the acid required for the lead-acid battery formation process, and the lower part of the container is provided with a liquid outlet structure adapted to the battery acid filling port;

[0008] The flow guiding component is designed as a sheet-like structure that can effectively guide the flow of acid. The flow guiding component can be installed at the outlet structure of the acid storage container. After installation, it forms a path for the acid to flow from the inside of the acid storage container through the flow guiding component to the battery cell, so as to achieve smooth acid flow when adding acid online.

[0009] As an improvement to the above technical solution: the acid storage container includes an acid pot, the acid pot has an injection pipe above it, and the liquid outlet structure includes an acid spout connected to the bottom of the acid pot, the acid spout being a cylindrical structure.

[0010] As an improvement to the above technical solution: the drainage component includes a drainage rod, the lower sidewall of which has multiple outwardly extending protrusions, and the inner sidewall of the injection tube has multiple grooves that are adapted to the protrusions. The drainage rod can be engaged with the protrusions and grooves.

[0011] As an improvement to the above technical solution, it also includes a connecting conduit adapted to the battery acid filling port, the connecting conduit being sleeved on the outer side of the acid spout.

[0012] As an improvement to the above technical solution: the acid storage container is provided in multiple sets, and the multiple sets of acid storage containers are arranged together.

[0013] The beneficial effects of this utility model are:

[0014] By adding plate-shaped guide rods to the acid reservoir, the flow pattern of the acid is altered. These rods increase the flow path and contact area of ​​the acid, allowing it to flow more evenly and quickly into the battery cells. Compared to traditional methods that rely on venting through a venting pipe to facilitate acid flow, this invention effectively avoids problems caused by venting pipe issues (such as reverse venting or blockage), significantly improving the smoothness of acid flow and ensuring that the oxidation-reduction reaction inside the battery proceeds promptly and smoothly, thereby improving the battery's formation efficiency and quality.

[0015] Furthermore, since the sheet-shaped diversion rod is installed on the acid pot, no manual operation such as releasing the gas guide tube is required during the acid addition process. This reduces the number of manual operations on the production line and the need for acid replenishment workers. This not only reduces the labor intensity of the staff, but also greatly improves production efficiency.

[0016] This ensures that each battery cell receives uniform and smooth acid flow, preventing cell-cell formation variations caused by poor acid flow. The consistency between battery cells is effectively guaranteed, thereby improving overall battery performance and quality, extending battery life, and enhancing the product's competitiveness in the market. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connection structure between the existing acid pot and the gas delivery pipe;

[0018] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0019] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle.

[0020] Reference numerals in the attached diagram: 1. Existing acid reservoir; 2b. Gas delivery tube; 1. Acid reservoir; 2. Drainage rod; 3. Injection tube; 4. Acid reservoir spout; 5. Protrusion; 6. Groove; 7. Connecting tubing. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] Example

[0023] Please refer to Figures 1-3 An acid-adding device for the charging and discharging process of a lead-acid battery includes an acid storage container with a space for containing the acid required for the lead-acid battery formation process, and the lower part of the container is provided with an outlet structure adapted to the battery acid-adding port.

[0024] The flow guide component is designed as a sheet-like structure that can effectively guide the flow of acid. The flow guide component can be installed at the outlet structure of the acid storage container. After installation, it forms a flow path for acid to flow from inside the acid storage container through the flow guide component to the battery cell, so as to achieve smooth acid flow when adding acid online.

[0025] In an optional embodiment: the acid storage container includes an acid pot 1, and an injection pipe 3 is provided above the acid pot 1. Specifically, a pipe cap may be added to the injection pipe 3 to facilitate the injection of acid into the acid pot 1. The liquid outlet structure includes an acid spout 4 connected to the bottom of the acid pot 1. The acid spout 4 is a cylindrical structure.

[0026] In an optional embodiment: the drainage component includes a drainage rod 2, the lower sidewall of the drainage rod 2 has a plurality of outwardly extending protrusions 5, the inner sidewall of the injection tube 3 has a plurality of grooves 6 adapted to the protrusions 5, the drainage rod 2 can be engaged with the protrusions 5 and the grooves 6, thereby making it easy to install the drainage rod 2 on the acid spout 4.

[0027] Specifically, the drainage rod is made of acid-resistant materials, such as acid-resistant plastics (e.g., polytetrafluoroethylene) or acid-resistant metals (e.g., titanium alloys), to ensure stability and durability in acidic environments. The drainage rod is designed in a sheet shape, with a thickness generally between 1-5 mm, and a width determined by the size of the acid container and actual drainage requirements, typically between 5-20 mm. This sheet-like structure effectively increases the contact area with the acid, guiding the acid flow more evenly compared to traditional circular gas guide tubes, reducing resistance during flow, and thus improving the smoothness of acid delivery.

[0028] The length of the drainage rod can be slightly longer than the height of the acid pot so that it can extend from the top of the acid pot to near the bottom after installation, ensuring good drainage of acid at different heights in the acid pot.

[0029] Specifically, the acid spout, located at the bottom of the acid reservoir, is the channel through which acid flows out of the reservoir and into the battery. The internal diameter of the spout is designed according to the battery's acid filling rate and flow rate requirements, typically between 3 and 10 millimeters. The external shape of the spout matches the battery's acid filling port to ensure a tight connection and prevent acid leakage. A groove is provided at the spout location; the shape and size of this groove are adapted to the sheet-like guide rod. The groove depth is generally between 2 and 5 millimeters, and the width is slightly larger than the thickness of the guide rod by 0.1 to 0.5 millimeters to facilitate smooth insertion and stability of the guide rod. This groove design ensures the correct installation position of the sheet-like guide rod in the acid reservoir and also facilitates its replacement and maintenance.

[0030] In an optional embodiment, a connecting conduit 7 adapted to the battery acid filling port is also included. The connecting conduit 7 can be sleeved on the outer side of the acid spout 4. The present application can be connected to the battery acid filling port more quickly and conveniently through the connecting conduit 7.

[0031] In one optional embodiment: multiple sets of acid storage containers are provided, and the multiple sets of acid storage containers are arranged together.

[0032] Specifically, the installation of the sheet-like guide rod in this application is very simple; it can be directly inserted into the slot at the acid reservoir spout. During installation, ensure that the sheet-like guide rod is fully inserted into the slot and fits tightly against the inner wall of the acid reservoir spout without gaps or looseness, so that the acid can flow smoothly down along the guide rod. When adding acid, the operator does not need to perform any additional complicated operations; simply insert the acid reservoir with the sheet-like guide rod installed into the corresponding position on the battery as usual. At this time, the acid in the acid reservoir will flow smoothly into the battery under the action of gravity and the guiding effect of the sheet-like guide rod, providing sufficient acid for the battery's charging and discharging formation process.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lead-acid battery acid feeding device during charging and discharging process, characterized in that, it comprises an acid storage container having a space for containing acid required by formation process of lead-acid battery, and the lower part of the container is provided with a liquid outlet structure matched with the battery acid inlet; a flow guide component in the shape of a sheet structure capable of effectively guiding the flow of acid, which can be installed at the liquid outlet structure of the acid storage container, and after installation, forms an acid feeding path from the inside of the acid storage container to the battery cell through the flow guide component, so as to realize smooth acid feeding when using acid feeding on line; the acid storage container comprises an acid pot (1), the upper part of the acid pot (1) is provided with a liquid injection pipe (3), the liquid outlet structure comprises an acid pot nozzle (4) connected to the bottom of the acid pot (1), and the acid pot nozzle (4) is in the shape of a circular tube; the flow guide component comprises a flow guide rod (2), the lower part of the flow guide rod (2) is provided with a plurality of outwardly extending protrusions (5), the inner side wall of the liquid injection pipe (3) is formed with a plurality of recesses (6) matched with the protrusions (5), and the flow guide rod (2) can be clamped by the protrusions (5) and the recesses (6); it further comprises a connecting pipe (7) matched with the battery acid inlet, which can be sleeved on the outer side of the acid pot nozzle (4); the acid storage container is provided with a plurality of groups, and the plurality of groups of acid storage containers are arranged together.

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