Design structure of acid adding hole of power type lead-acid storage battery

CN224804170UActive Publication Date: 2026-09-25JIANGSU AOXIN TECH DEV
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Patent Information

Application Number
CN202522347970.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-05
Publication Date
2026-09-25
Estimated Expiration
2035-11-05

AI Technical Summary

Technical Problem

[0003]现有技术中加酸孔设计存在诸多不足:其一,加酸导气管多为独立装配,易出现插入深浅不一的问题,导致各孔位导气效果差异大,影响电池充放电过程中气体排出的一致性,进而降低电池性能稳定性;其二,加酸导气管长度固定,无法根据不同使用场景的需求灵活调整,适配性较差;其三,部分加酸导气管下端结构设计不合理,与电池内部极群匹配度低,不仅影响电解液的高效渗透,还可能阻碍气体顺畅排出

Benefits of technology

[0011]本实用新型的有益效果:通过本实用新型的设置,具体有益效果如下,导气一致性强:加酸导气管插入深浅统一,有效保障各孔位导气效果一致,提升电池性能稳定性。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of design structure of power type lead-acid battery acid hole, it is related to battery technical field.The structure includes battery upper cover main body, its inside integrally formed with array type distribution installation auxiliary rectangular frame, multiple acid holes are equipped in top surface middle part groove, each acid hole is configured with the acid guide pipe of integrally formed upper cover, gas guide pipe outside is equipped with inclined scale line, and the rectangular recess in the corner of upper cover top surface is integrally formed with direction mark short column;Acid guide pipe lower end is equipped with 45 °-50 ° bevel, and with battery internal pole group position matching.The utility model guarantees gas consistency by integrally formed structure, realizes accurate installation using direction mark and auxiliary frame, flexibly adapts demand by the aid of scale line, electrolyte penetration efficiency and gas discharge effect are improved simultaneously by optimizing gas guide pipe bevel, overall structure is stable and reliable, can prolong battery service life.
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Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a design structure for an acid inlet in a power-type lead-acid battery. Background Technology

[0002] In the production and use of power-type lead-acid batteries, the rationality of the acid filling hole structure directly affects the battery's performance stability, installation efficiency, and service life.

[0003] Existing acid filling port designs have several shortcomings: First, the acid filling vent tubes are mostly independently assembled, which can easily lead to inconsistent insertion depths, resulting in significant differences in venting effectiveness at each port position. This affects the consistency of gas discharge during battery charging and discharging, thereby reducing battery performance stability. Second, the fixed length of the acid filling vent tubes cannot be flexibly adjusted according to the needs of different application scenarios, resulting in poor adaptability. Third, the lower end structure of some acid filling vent tubes is poorly designed, with low compatibility with the battery's internal electrode groups. This not only affects the efficient penetration of electrolyte but may also hinder the smooth discharge of gas. Therefore, a new design structure for the acid filling port of a power-type lead-acid battery is proposed. Utility Model Content

[0004] The purpose of this invention is to solve the above problems by proposing a design structure for adding an acid port to a power-type lead-acid battery.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a design structure for an acid filling port of a power-type lead-acid battery, comprising a battery top cover body, wherein the interior of the battery top cover body is integrally formed with multiple neatly and evenly distributed mounting auxiliary rectangular frames; a groove is formed in the center of the top surface of the battery top cover body, wherein multiple acid filling holes are neatly and evenly distributed in the groove, and each acid filling hole is provided with an acid filling vent tube integrally formed with the battery top cover body, wherein an inclined scale line is integrally formed on the outer side of the acid filling vent tube; a rectangular groove is formed at one corner of the top surface of the battery top cover body, wherein two directional marking short posts are integrally formed in the rectangular groove.

[0006] Preferably, the mounting auxiliary rectangular frames are arranged in an array along the interior of the battery cover body.

[0007] Preferably, the acid filling holes and the acid filling gas tubes are provided in a one-to-one correspondence, and the diameter of the acid filling holes is adapted to the outer diameter of the acid filling gas tubes.

[0008] Preferably, the lower end of the acid-adding gas pipe has a bevel angle of 45°-50°, and the direction of the bevel angle matches the position of the electrode group inside the battery.

[0009] Preferably, the tilt angle of the inclined scale line is consistent with the tilt angle of the lower end of the acid injection tube, and the spacing between the scale lines is 1mm-2mm.

[0010] Preferably, there are two directional marker posts, which are respectively located in rectangular grooves at two corners on one side of the top surface of the battery cover.

[0011] The beneficial effects of this utility model are as follows: Through the design of this utility model, the specific beneficial effects are as follows: strong gas conduction consistency: the insertion depth of the acid gas conduction tube is uniform, which effectively ensures that the gas conduction effect of each hole is consistent and improves the stability of battery performance.

[0012] Easy and precise installation: The directional marker posts clearly indicate the installation direction, and the array-style installation auxiliary rectangles enable precise positioning, avoiding installation errors.

[0013] Flexible adaptability: The inclined scale line on the outside of the acid filling tube makes it easy to shorten as needed, meeting the personalized needs of different scenarios.

[0014] Highly efficient electrolyte addition: The angled lower end of the acid-adding gas inlet tube matches the electrode group, guiding the electrolyte to penetrate efficiently while facilitating the smooth discharge of gas.

[0015] Stable and reliable structure: All components are integrally molded with the battery cover body, and an auxiliary rectangular frame is installed to enhance structural strength and extend service life. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the overall top surface structure of this utility model; Appendix Figure 2 This is the utility model Figure 1 Enlarged diagram of part A in the middle; Appendix Figure 3 This is the utility model Figure 1 Enlarged diagram of section B; Appendix Figure 4 This is a schematic diagram of the overall bottom structure of this utility model.

[0017] Legend: 1. Battery top cover body; 2. Mounting auxiliary rectangular frame; 3. Acid filling hole; 4. Acid filling vent pipe; 5. Tilted scale line; 6. Direction indicator short column. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] See Figure 1-4As shown in the figure, the design structure of the acid filling hole of a power type lead-acid battery in this embodiment includes a battery cover body 1. The battery cover body 1 has multiple neatly and evenly distributed mounting auxiliary rectangular frames 2 integrally formed inside. A groove is opened in the middle of the top surface of the battery cover body 1. Multiple acid filling holes 3 are neatly and evenly distributed in the groove. Each acid filling hole 3 is provided with an acid filling vent pipe 4 integrally formed with the battery cover body 1. An inclined scale line 5 integrally formed with the acid filling vent pipe 4 is opened on the outside of the acid filling vent pipe 4. A rectangular groove is opened at one corner of the top surface of the battery cover body 1. Two directional marking short posts 6 are integrally formed in the rectangular groove.

[0020] The auxiliary rectangular frames 2 are arranged in an array along the interior of the battery cover body 1.

[0021] The acid filling hole 3 and the acid filling gas tube 4 are set one-to-one, and the diameter of the acid filling hole 3 is adapted to the outer diameter of the acid filling gas tube 4.

[0022] The lower end of the acid-adding gas pipe 4 has a bevel angle of 45°-50°, and the direction of the bevel angle matches the position of the electrode group inside the battery.

[0023] The tilt angle of the tilted scale line 5 is consistent with the tilt angle of the lower end of the acid injection tube 4, and the spacing between the scale lines is 1mm-2mm.

[0024] There are two directional indicator posts 6, which are respectively located in the rectangular grooves at the two corners on one side of the top surface of the battery cover body 1.

[0025] Specifically, the battery top cover body 1 serves as the basic carrier of the entire acid filling hole design structure, playing the role of supporting and integrating other components, providing protection and structural support for the upper part of the lead-acid battery, and providing an installation basis for the functional realization of each component.

[0026] The auxiliary rectangular frames 2 are arranged in an array along the interior of the battery cover body 1. On the one hand, they can cooperate with components such as the battery casing to achieve precise positioning during battery assembly, ensuring that the battery cover body 1 is installed in the correct position. On the other hand, they can enhance the internal structural strength of the battery cover body 1, making it less prone to deformation when subjected to external forces, thus ensuring the stability of the overall structure.

[0027] The acid filling hole 3 is located in the groove in the middle of the top surface of the battery cover body 1. It serves as a channel for adding electrolyte into the battery, facilitating the replenishment of consumed electrolyte during battery use and maintaining the normal operating performance of the battery. It also provides an installation position for the acid filling vent tube 4. Furthermore, the acid filling hole 3 corresponds one-to-one with the acid filling vent tube 4, and its diameter is adapted to the outer diameter of the acid filling vent tube 4, ensuring the stability and sealing of the acid filling vent tube 4 after installation.

[0028] The acid filling vent pipe 4 is installed inside the acid filling hole 3 and is integrally formed with the battery top cover body 1. Its main function is to discharge the gas generated during the battery's electrode formation process, and at the same time, to help the acid better penetrate into the battery. Its lower end has a bevel angle of 45°-50°, and the direction of the bevel angle matches the position of the electrode group inside the battery. This design optimizes the gas discharge path, allowing the gas to be discharged more smoothly and preventing the gas from accumulating inside the battery. It also facilitates better circulation and penetration of the electrolyte near the electrode group, improving the battery's charging and discharging efficiency and performance.

[0029] The inclined scale line 5 is integrally formed on the outer side of the acid filling gas tube 4, and its inclined angle is consistent with the angle of the lower end of the acid filling gas tube 4. The spacing between the scale lines is 1mm-2mm. Users can shorten the acid filling gas tube 4 according to actual needs, referring to the scale lines. Without damaging the core functional structure of the acid filling gas tube 4, the flexibility and applicability of the product are improved, meeting the personalized needs of different usage scenarios and users.

[0030] Two directional marker posts 6 are located in rectangular grooves at the two corners on one side of the top surface of the battery cover body 1. During battery assembly, they serve as markers for the installation orientation of the battery cover body 1, ensuring that it is installed onto the battery in the correct direction. This prevents improper internal structural fit due to incorrect installation orientation, which could affect battery performance and lifespan.

[0031] The operation process of this utility model is as follows: During the installation and positioning operation, the battery cover body 1 is moved to the top of the battery shell to be installed. Observe the direction marking short posts 6 in the rectangular grooves at the two corners on one side of the top surface of the battery cover body 1. According to the corresponding installation marks on the battery shell, adjust the direction of the battery cover body 1 to ensure that the direction marking short posts 6 match the direction indicators on the shell. Then, slowly lower the battery cover body 1 so that the internal array-distributed installation auxiliary rectangular frames 2 are precisely aligned with the corresponding structures on the battery shell, thus completing the initial positioning and placement.

[0032] When shortening the acid filling gas tube, based on the required length of the acid filling gas tube 4 for the actual application scenario, check the integrally formed inclined scale line 5 on the outer side of the acid filling gas tube 4. The inclined angle of this scale line is consistent with the 45°-50° angle at the lower end of the acid filling gas tube 4, and the spacing is 1mm-2mm. Using special cutting pliers, shorten the acid filling gas tube 4 along the selected scale line position, ensuring that the cut is flat and does not damage the overall structure of the acid filling gas tube 4.

[0033] When adding electrolyte, prepare the appropriate electrolyte and align the outlet of the acid-adding tool with the acid-adding hole 3 in the groove at the center of the top surface of the battery cover body 1. Slowly inject the electrolyte. During the injection process, observe the electrolyte flowing into the battery through the acid-adding vent tube 4 inside the acid-adding hole 3. The angled design of the lower end of the acid-adding vent tube 4, which matches the electrode group position, guides the electrolyte to permeate near the electrode group. Simultaneously, the gas generated inside the battery is smoothly discharged through the acid-adding vent tube 4 until the specified electrolyte level is reached.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A design structure for a power-type lead-acid battery with an acid port, characterized in that: The battery cover body (1) includes a battery cover body (1) with multiple neatly and evenly distributed mounting auxiliary rectangular frames (2) integrally formed inside the battery cover body (1); a groove is provided in the middle of the top surface of the battery cover body (1), and multiple acid filling holes (3) are neatly and evenly distributed in the groove. Each acid filling hole (3) is provided with an acid filling vent pipe (4) integrally formed with the battery cover body (1). An inclined scale line (5) integrally formed with the acid filling vent pipe (4) is provided on the outside of the acid filling vent pipe (4); a rectangular groove is provided at one corner of the top surface of the battery cover body (1), and two directional marking short posts (6) integrally formed in the rectangular groove.

2. The design structure of the acid filling port for a power-type lead-acid battery according to claim 1, characterized in that: The installation auxiliary rectangular frame (2) is arranged in an array along the interior of the battery cover body (1).

3. The design structure of the acid filling port for a power-type lead-acid battery according to claim 2, characterized in that: The acid filling hole (3) is provided in a one-to-one correspondence with the acid filling gas pipe (4), and the diameter of the acid filling hole (3) is adapted to the outer diameter of the acid filling gas pipe (4).

4. The design structure of the acid filling port for a power-type lead-acid battery according to claim 3, characterized in that: The lower end of the acid-adding gas pipe (4) has an angle of 45°-50°, and the direction of the angle matches the position of the electrode group inside the battery.

5. The design structure of the acid filling port for a power-type lead-acid battery according to claim 4, characterized in that: The tilt angle of the inclined scale line (5) is consistent with the tilt angle of the lower end of the acid gas delivery tube (4), and the spacing between the scale lines is 1mm-2mm.

6. The design structure of the acid filling port for a power-type lead-acid battery according to claim 5, characterized in that: There are two directional marker posts (6), which are respectively located in rectangular grooves at two corners on one side of the top surface of the battery cover body (1).