Liquid injection chamber of high discharge performance lead-acid storage battery

By employing an inner and outer nested cavity structure and a buffer and shock absorption design, the problem of unstable electrolyte filling environment is solved, thereby improving the discharge performance and vibration resistance of lead-acid batteries.

CN224458165UActive Publication Date: 2026-07-03SHANDONG SACRED SUN POWER SOURCES

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG SACRED SUN POWER SOURCES
Filing Date
2025-04-11
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

How to improve the electrolyte filling environment and its heat preservation performance in order to improve discharge performance, especially to maintain the stability and shock resistance of the electrolyte in a vibrating environment.

Method used

It adopts an inner and outer nested cavity structure. The inner shell contains the electrolyte, while the outer shell provides protection and constructs a buffer and shock absorption structure. The mechanical vibration is mitigated by setting ridges between the inner shell and the outer shell and a bottom rubber pad.

Benefits of technology

It effectively reduces the impact of mechanical vibration on the electrolyte state, improves the stability and discharge performance of the electrolyte, and enhances the battery's shock resistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a electrolyte filling chamber for a high-discharge-performance lead-acid battery, belonging to the field of battery technology. Its structure includes: several mutually spaced raised and recessed grooves on the inner wall of the outer casing; the raised grooves fitting between the outer wall of the inner casing and the inner wall of the outer casing; a top frame at the top of the outer casing, with an end cap fixedly connected to the top frame by bolts; a bottom frame at the bottom of the outer casing, with a rubber pad fixedly connected to the bottom plate; square holes and outer grooves arranged from the inside out inside the bottom frame; the rubber pad on the bottom plate extending through the square holes into the outer casing and supporting the bottom of the inner casing; and the electrode group disposed inside the inner casing. This invention employs a nested cavity structure, where the inner casing directly contains the electrolyte, and the outer casing serves both a protective function and a buffer / shock-absorbing structure. This invention effectively reduces vibration by utilizing the raised grooves on the sides and the rubber pad at the bottom, mitigating the impact of mechanical vibration on the electrolyte state to a certain extent.
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Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a liquid filling chamber for a high-discharge-performance lead-acid battery. Background Technology

[0002] The discharge performance of a battery mainly includes key indicators such as discharge capacity, discharge time, and depth of discharge. These indicators directly affect the battery's lifespan and performance. The discharge capacity of a battery refers to the amount of electricity released when discharged to the termination voltage under certain conditions, usually measured in ampere-hours (Ah) or milliampere-hours (mAh). Discharge time is the duration for which a battery can continuously supply power under specific discharge conditions. Depth of discharge refers to the percentage of the battery's rated capacity that has been discharged to.

[0003] The state of the electrolyte directly affects the discharge performance of a battery. Electrolyte temperature affects battery capacity; generally, higher temperatures result in greater capacity, and vice versa. Therefore, maintaining a suitable operating temperature is crucial for improving battery discharge performance. Furthermore, electrolytes exhibit localized inhomogeneity under vibration, directly impacting discharge stability. Since batteries, especially power and traction batteries, are frequently used in environments subject to vibration, maintaining relatively stable discharge characteristics requires a relatively stable electrolyte filling environment with a certain degree of shock resistance. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: how to improve the electrolyte injection environment of the storage battery and improve its heat preservation performance.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution:

[0006] A high-discharge-performance lead-acid battery's filling chamber includes an outer shell, an inner shell, a top frame, a bottom frame, an end cap, an upper bolt, a base plate, lower bolts, raised patterns, grooves, a rubber pad, a retaining wall, an outer groove, a square hole, and an electrode group. The inner shell is located inside the outer shell. Several mutually spaced raised patterns and grooves are provided on the inner wall of the outer shell. The raised patterns fit between the outer wall and the inner wall of the outer shell. A top frame is located at the top of the outer shell, and an end cap is fixedly connected to the top frame by upper bolts. A bottom frame is located at the bottom of the outer shell, and a base plate is fixedly connected to the bottom of the base frame by several lower bolts. A rubber pad is fixedly connected to the base plate. A retaining wall is located outside the base frame. Square holes and outer grooves are provided inside the base frame from the inside out. The rubber pad on the base plate extends through the square holes into the outer shell and supports the bottom of the inner shell. The electrode group is located inside the inner shell.

[0007] Preferably, the end cap is provided with a terminal block and an injection port.

[0008] Preferably, the ridges are made of rubber and are sandwiched between the outer shell and the inner shell.

[0009] Preferably, the raised lines extend obliquely, and several raised lines are arranged side by side to form a group, with different inclination angles between each pair of adjacent raised lines.

[0010] Preferably, a slot is provided on the top frame, and an annular flange is provided on the inner wall of the end cap, the flange being secured to the slot.

[0011] Preferably, a square hole is provided in the top frame, which is located at the upper edge of the inner shell.

[0012] In the above technical solution, the outer shell is the external protective structure of this utility model, the inner shell is the liquid injection chamber, and the top frame and bottom frame are used to install the end cap and the bottom plate, respectively. The upper bolt is used to fix the end cap and the top frame, and the lower bolt is used to fix the bottom plate and the bottom frame. The bottom plate is not only the bottom structure of this utility model, but also serves to support the rubber pad, which provides support and shock absorption for the inner shell from the bottom. The raised texture and grooves form an alternating stripe structure, with the raised texture sandwiched between the inner shell and the outer shell, providing cushioning and shock absorption for the inner shell from the side. In the structure of the bottom frame, the enclosure is its external structure, the outer groove is used to set screw holes, and the square hole is used for the rubber pad to pass through, thereby providing support for the bottom of the inner shell.

[0013] This invention provides a electrolyte filling chamber for a high-discharge-performance lead-acid battery. The design employs a nested cavity structure, where the inner shell directly holds the electrolyte, while the outer shell serves both a protective function and a buffer / shock-absorbing structure. This invention utilizes side ridges and a bottom rubber pad for effective shock absorption, mitigating the impact of mechanical vibration on the electrolyte state to a certain extent. Attached Figure Description

[0014] Figure 1 This is an assembly drawing of this utility model;

[0015] Figure 2 This is an exploded view of this utility model;

[0016] Figure 3 yes Figure 2 A partial view of position A in the middle;

[0017] Figure 4 This is a partial view of the bottom structure of this utility model;

[0018] In the picture:

[0019] Detailed Implementation

[0020] The technical solutions in the embodiments of this application will be clearly and completely described below 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. Furthermore, those skilled in the art will understand that with technological development and the emergence of new scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0021] In the description of this application, it should be understood that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Furthermore, any terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0022] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0023] Example 1

[0024] A liquid filling chamber for a high-discharge-performance lead-acid battery, such as Figures 1-4 As shown, the device includes an outer shell 1, an inner shell 2, a top frame 3, a bottom frame 4, an end cap 5, an upper bolt 6, a base plate 7, a lower bolt 8, raised patterns 9, grooves 10, a rubber pad 11, a enclosure 12, an outer groove 13, a square hole 14, and a pole group 15. The inner shell 2 is located inside the outer shell 1. Several mutually spaced raised patterns 9 and grooves 10 are provided on the inner wall of the outer shell 1. The raised patterns 9 fit between the outer wall of the inner shell 2 and the inner wall of the outer shell 1. A top frame 3 is provided on the top of the outer shell 1, and a fixed connection is made to the top frame 3. There is an end cap 5, which is fixed to the top frame 3 by upper bolts 6. A bottom frame 4 is provided at the bottom of the outer shell 1. A bottom plate 7 is fixedly connected to the bottom of the bottom frame 4 by several lower bolts 8. A rubber pad 11 is fixedly connected to the bottom plate 7. A barrier 12 is provided on the outside of the bottom frame 4. A square hole 14 and an outer groove 13 are provided from the inside to the outside of the bottom frame 4. The rubber pad 11 on the bottom plate 7 passes through the square hole 14 to the inside of the outer shell 1 and supports the bottom of the inner shell 2. The pole group 15 is set inside the inner shell 2.

[0025] In the above technical solution, the outer shell 1 is the outer protective structure of this utility model, the inner shell 2 is the liquid injection chamber, and the top frame 3 and bottom frame 4 are used to install the end cap 5 and the bottom plate 7, respectively; the upper bolt 6 is used to fix the end cap 5 and the top frame 3, and the lower bolt 6 is used to fix the bottom plate 7 and the bottom frame 4. The bottom plate 7 is not only the bottom structure of this utility model, but also used to support the rubber pad 11. The rubber pad 11 provides support and shock absorption for the inner shell 2 from the bottom. The raised ridges 9 and the grooves 10 form an alternating striped structure. The raised ridges 9 are clamped between the inner shell 2 and the outer shell 1, providing cushioning and shock absorption for the inner shell 2 from the side. In the structure of the bottom frame 4, the enclosure 12 is its external structure, the outer groove 13 is used to set screw holes, and the square hole 14 is used for the rubber pad 11 to pass through, thereby providing support for the bottom of the inner shell 2.

[0026] Example 2

[0027] A liquid filling chamber for a high-discharge-performance lead-acid battery, such as Figures 1-4 As shown, the device includes an outer shell 1, an inner shell 2, a top frame 3, a bottom frame 4, an end cap 5, an upper bolt 6, a base plate 7, a lower bolt 8, raised patterns 9, grooves 10, a rubber pad 11, a enclosure 12, an outer groove 13, a square hole 14, and a pole group 15. The inner shell 2 is located inside the outer shell 1. Several mutually spaced raised patterns 9 and grooves 10 are provided on the inner wall of the outer shell 1. The raised patterns 9 fit between the outer wall of the inner shell 2 and the inner wall of the outer shell 1. A top frame 3 is provided on the top of the outer shell 1, and a fixed connection is made to the top frame 3. The outer shell 1 has an end cap 5, which is fixed to the top frame 3 by upper bolts 6. A bottom frame 4 is located at the bottom of the outer shell 1, and a bottom plate 7 is fixedly connected to the bottom of the bottom frame 4 by several lower bolts 8. A rubber pad 11 is fixedly connected to the bottom plate 7. A retaining wall 12 is located outside the bottom frame 4. Inside the bottom frame 4, square holes 14 and outer grooves 13 are provided from the inside out. The rubber pad 11 on the bottom plate 7 passes through the square holes 14 into the outer shell 1 and supports the bottom of the inner shell 2. An electrode group 15 is located inside the inner shell 2. The end cap 5 has a terminal post and a liquid injection port. The raised ridge 9 is made of rubber and is clamped between the outer shell 1 and the inner shell 2. The raised ridge 9 extends obliquely, and several raised ridges are arranged side-by-side to form a group, with different inclination angles between each pair of adjacent groups of raised ridges. A slot is provided on the top frame 3, and an annular flange is provided on the inner wall of the end cap 5, which is secured to the slot. A square hole is also provided in the top frame 3, which is located at the upper edge of the inner shell 2.

[0028] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure is presented by way of example only and is not restrictive. Although not explicitly stated herein, those skilled in the art will understand that this application is intended to encompass various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be made by this application and are within the spirit and scope of the exemplary embodiments of this application.

[0029] It should be understood that in the foregoing description of the embodiments of this application, various features are combined in a single embodiment, drawing, or description for the purpose of simplifying the understanding of a feature. However, this does not mean that the combination of these features is necessary, and those skilled in the art can certainly extract some of the features as individual embodiments when reading this application.

[0030] It should be understood that the embodiments disclosed herein are illustrative of the principles of this application. Other modified embodiments are also within the scope of this application. The embodiments disclosed herein are merely examples and not limitations, and the embodiments of this application are not limited to the embodiments precisely described above.

Claims

1. A high discharge performance lead-acid battery with a liquid injection chamber, characterized in that The system includes an outer shell (1), an inner shell (2), a top frame (3), a bottom frame (4), an end cap (5), an upper bolt (6), a bottom plate (7), a lower bolt (8), raised patterns (9), grooves (10), a rubber pad (11), a enclosure (12), an outer groove (13), a square hole (14), and a pole group (15). The inner shell (2) is located inside the outer shell (1). Several raised patterns (9) and grooves (10) are provided on the inner wall of the outer shell (1). The raised patterns (9) fit between the outer wall of the inner shell (2) and the inner wall of the outer shell (1). A top frame (3) is provided on the top of the outer shell (1). The top frame (3) is fixed to the outer shell (1). The end cap (5) is connected and fixed to the top frame (3) by the upper bolt (6). A bottom frame (4) is provided at the bottom of the outer shell (1). The bottom plate (7) is fixedly connected to the bottom of the bottom frame (4) by several lower bolts (8). A rubber pad (11) is fixedly connected to the bottom plate (7). A barrier (12) is provided on the outside of the bottom frame (4). A square hole (14) and an outer groove (13) are provided from the inside to the outside of the bottom frame (4). The rubber pad (11) on the bottom plate (7) passes through the square hole (14) to the inside of the outer shell (1) and is supported at the bottom of the inner shell (2). The pole group (15) is set inside the inner shell (2).

2. The liquid injection chamber of a high discharge performance lead-acid battery according to claim 1, characterized in that, A terminal block and an injection port are respectively provided on the end cap (5).

3. The liquid injection chamber of a high discharge performance lead-acid battery according to claim 1, characterized in that, The ridge (9) is made of rubber and is sandwiched between the outer shell (1) and the inner shell (2).

4. The liquid injection chamber of a high discharge performance lead-acid battery according to claim 1, characterized in that, The raised pattern (9) extends obliquely, and several raised patterns are arranged side by side to form a group. The angle of inclination between each two adjacent groups of raised patterns is different.

5. The liquid injection chamber of a high discharge performance lead-acid battery according to claim 1, wherein, A slot is provided on the top frame (3), and an annular flange is provided on the inner wall of the end cap (5), the flange being secured to the slot.

6. The liquid injection chamber of a high discharge performance lead-acid battery according to claim 1, characterized in that, A square hole is provided in the top frame (3), which is located at the upper edge of the inner shell (2).