An apparatus for measuring the amount of gas evolved from an alkaline battery

Abstract

The utility model discloses a kind of alkaline battery gas evolution measurement devices, including base, sealing cover body, gas collection component and pressure sensing module, the base is rectangular plate structure and top surface middle part is equipped with the positioning slot for fixing alkaline battery, the positioning slot inside bottom wall is embedded with electrically conductive sheet, and electrically conductive sheet is connected with external power supply to simulate battery operating condition;The sealing cover body is the semispherical shell structure made of transparent material and covers in base top surface, the sealing cover body is fixed by screw thread ring and base top edge rotation, and sealing cover body inner wall evenly distributed has several support ribs, gas flow channel is formed between the support rib, gas flow channel is formed by setting support rib, so that the gas evolved by battery can be along specific path ascending orderly, avoid gas in sealing cover body disorder diffusion, improve gas collection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery gas evolution measurement technology, specifically a device for measuring the gas evolution of alkaline batteries. Background Technology

[0002] Alkaline batteries are suitable for electrical appliances requiring high discharge capacity and prolonged use. Alkaline dry cell batteries, alkaline zinc-manganese batteries, and alkaline manganese batteries are the highest-performing varieties in the zinc-manganese battery series. They are suitable for items requiring high discharge capacity and prolonged use, such as electric toys, electric toothbrushes, wireless mice and keyboards, and electric shavers—high-current electrical appliances. In current technology, alkaline batteries undergo continuous internal chemical reactions during use, producing hydrogen gas. The amount of hydrogen gas produced is an important battery performance indicator, reflecting not only the internal chemical reactions but also significantly impacting battery safety and lifespan. Therefore, monitoring and analyzing the amount of hydrogen gas produced is an essential part of battery research and application. Utility Model Content

[0003] The purpose of this invention is to provide a device for measuring the amount of gas produced by alkaline batteries, so as to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an alkaline battery gas evolution measuring device, comprising a base, a sealing cover, a gas collection assembly, and a pressure sensing module. The base is a rectangular plate structure with a positioning groove for fixing the alkaline battery in the center of its top surface. A conductive sheet is embedded in the bottom wall of the positioning groove, and the conductive sheet is connected to an external power source to simulate the working state of the battery. The sealing cover is a hemispherical shell structure made of transparent material and covers the top surface of the base. The sealing cover is fixed to the top edge of the base by screwing a threaded ring, and several supporting ribs are evenly distributed on the inner wall of the sealing cover, forming gas flow channels between the supporting ribs.

[0005] Preferably, the gas collection assembly is located at the bottom of the sealed cover. The gas collection assembly includes a gas collection chamber, a microporous filter membrane, and an exhaust pipe. The gas collection chamber is a cylindrical cavity structure with an open bottom. The bottom of the gas collection chamber is fitted with a microporous filter membrane and fixed by a buckle. The microporous filter membrane allows gas to pass through while blocking liquid or particulate impurities from entering the gas collection chamber. The exhaust pipe penetrates the top wall of the gas collection chamber and communicates with the outside. A one-way valve is provided at the outer end of the exhaust pipe.

[0006] Preferably, the pressure sensing module is fixed to the top of the outer wall of the sealing cover. The pressure sensing module includes a pressure sensor and a data acquisition unit. The pressure sensor is connected to the end of the exhaust pipe through a duct, and the signal output terminal of the pressure sensor is electrically connected to the input terminal of the data acquisition unit.

[0007] Preferably, the top surface of the base is provided with an annular groove around its perimeter, and the annular groove is filled with a silicone sealing ring. The top surface of the silicone sealing ring is tightly fitted to the bottom end of the sealing cover, and the cross-section of the silicone sealing ring is trapezoidal, with the bottom width of the silicone sealing ring being greater than the top width.

[0008] Preferably, there are six supporting ribs evenly distributed along the inner wall of the sealing cover. Each supporting rib is arc-shaped and has the same curvature as the inner wall of the sealing cover. The cross-section of the supporting rib is an isosceles trapezoid, and the top width of the supporting rib is smaller than the bottom width.

[0009] Preferably, the bottom opening diameter of the gas collecting chamber is 0.8 times the diameter of the microporous filter membrane, and the top wall of the gas collecting chamber has a plurality of air vents.

[0010] Preferably, a regulating valve is provided at the connection between the exhaust pipe and the air collection chamber, and the regulating valve controls the degree of opening and closing of the exhaust pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By setting up supporting ribs to form gas flow channels, the gas released from the battery can rise in an orderly manner along a specific path, avoiding disorderly diffusion of gas in the sealed enclosure and improving gas collection efficiency. 2. A microporous filter membrane is used to filter the gas entering the gas collection chamber, effectively removing electrolyte droplets or solid particles that may be carried in the gas, ensuring the accuracy of subsequent pressure measurements, and preventing impurities from clogging the exhaust pipe; 3. The opening and closing degree of the exhaust pipe is controlled by an adjusting valve, and the opening pressure setting of the one-way valve can be used to precisely control the gas emission process, avoiding inaccurate pressure measurements due to excessively rapid gas emission, while ensuring the stability and reliability of the measurement system. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is an overall schematic diagram of an alkaline battery gas evolution measuring device according to this embodiment; Figure 2 This is a schematic diagram of the interior of the sealed cover of an alkaline battery gas evolution measuring device according to this embodiment; Figure 3 This is an internal schematic diagram of the gas collection assembly in this embodiment.

[0014] The attached diagram lists the components represented by each number as follows: 1. Base; 2. Sealing cover; 3. Gas collection assembly; 4. Pressure sensing module; 5. Positioning groove; 6. Conductive sheet; 7. Supporting rib; 8. Gas collection chamber; 9. Microporous filter membrane; 10. Exhaust pipe; 11. One-way valve; 12. Pressure sensor; 13. Data acquisition unit; 16. Regulating valve. Detailed Implementation

[0015] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3 This utility model provides a technical solution: an alkaline battery gas evolution measuring device, including a base 1, a sealing cover 2, a gas collection component 3, and a pressure sensing module 4. The base 1 is a rectangular plate structure with a positioning groove 5 for fixing the alkaline battery in the middle of the top surface. A conductive sheet 6 is embedded in the bottom wall of the positioning groove 5, and the conductive sheet 6 is connected to an external power source to simulate the working state of the battery. The sealing cover 2 is a hemispherical shell structure made of transparent material and covers the top surface of the base 1. The sealing cover 2 is fixed to the top edge of the base 1 by screwing a threaded ring, and a number of supporting ribs 7 are evenly distributed on the inner wall of the sealing cover 2, forming a gas flow channel between the supporting ribs 7.

[0017] Specifically, the gas collection assembly 3 is located at the bottom of the sealed cover 2. The gas collection assembly 3 includes a gas collecting chamber 8, a microporous filter membrane 9, and an exhaust pipe 10. The gas collecting chamber 8 is a cylindrical cavity structure with an open bottom. The microporous filter membrane 9 is fitted onto the bottom of the gas collecting chamber 8 and secured with a snap fastener. The microporous filter membrane 9 allows gas to pass through while blocking liquid or particulate impurities from entering the gas collecting chamber 8. The exhaust pipe 10 penetrates the top wall of the gas collecting chamber 8 and communicates with the outside. A one-way valve 11 is provided at the outer end of the exhaust pipe 10. Through these features, the gas generated during the gas evolution process of the alkaline battery can be effectively collected, while preventing liquid or particulate impurities from entering the gas collecting chamber 8 and affecting the accuracy of gas measurement. The one-way valve 11 ensures that gas can only be discharged from inside the gas collecting chamber 8, preventing backflow of outside air and further improving measurement accuracy.

[0018] Specifically, the pressure sensing module 4 is fixed to the top of the outer wall of the sealed cover 2. The pressure sensing module 4 includes a pressure sensor 12 and a data acquisition unit 13. The pressure sensor 12 is connected to the end of the exhaust pipe 10 through a gas pipe, and the signal output terminal of the pressure sensor 12 is electrically connected to the input terminal of the data acquisition unit 13. Through the above arrangement, the gas can be transmitted to the pressure sensor 12 through the gas pipe when it is discharged from the gas collection chamber 8. The pressure sensor 12 can detect the pressure change of the gas in real time and convert the detected pressure signal into an electrical signal and output it to the data acquisition unit 13. The data acquisition unit 13 is responsible for receiving and processing these electrical signals, converting them into specific gas evolution data, thereby realizing the accurate measurement of the gas evolution of the alkaline battery.

[0019] Specifically, there are six supporting ribs 7 evenly distributed along the inner wall of the sealing cover 2. Each supporting rib 7 is arc-shaped and has the same curvature as the inner wall of the sealing cover 2. The cross-section of the supporting rib 7 is an isosceles trapezoid, and the top width of the supporting rib 7 is smaller than the bottom width. Through the above arrangement, the supporting ribs 7 can not only effectively support the sealing cover 2 and enhance its structural stability, but also guide the gas flow, allowing the gas to pass through the gas flow channel more smoothly and reducing the residence time of the gas in the sealing cover 2, thereby further improving the efficiency and accuracy of gas measurement. At the same time, the arc-shaped design of the supporting ribs 7, which is consistent with the curvature of the inner wall of the sealing cover 2, ensures that the space inside the sealing cover 2 is fully utilized and reduces airflow resistance, enabling the gas collection assembly 3 to collect gas more effectively.

[0020] Specifically, the bottom opening diameter of the gas collecting chamber 8 is 0.8 times the diameter of the microporous filter membrane 9, and several air vents are provided on the top wall of the gas collecting chamber 8. Through the above arrangement, the connection between the gas collecting chamber 8 and the microporous filter membrane 9 is made tighter, effectively preventing gas from leaking from the gap between the gas collecting chamber 8 and the microporous filter membrane 9, and further improving the efficiency and accuracy of gas collection.

[0021] Specifically, a regulating valve 16 is provided at the connection between the exhaust pipe 10 and the gas collecting chamber 8. The regulating valve 16 controls the opening and closing degree of the exhaust pipe 10. Through this setting, users can adjust the opening and closing degree of the exhaust pipe 10 according to actual needs, thereby flexibly controlling the gas discharge rate to adapt to the gas evolution characteristics of different alkaline batteries. When the gas evolution of the alkaline battery is large, the opening and closing degree of the exhaust pipe 10 can be appropriately increased to ensure that the gas can be discharged in time and avoid excessive pressure in the gas collecting chamber 8; while when the gas evolution of the alkaline battery is small, the opening and closing degree of the exhaust pipe 10 can be appropriately decreased to slow down the gas discharge rate and improve the accuracy and stability of gas measurement. This design makes the alkaline battery gas evolution measurement device more flexible and applicable.

[0022] A specific application example of this embodiment is as follows: When in use, the alkaline battery is placed in the positioning slot 5, and the conductive sheet 6 is in contact with the positive and negative terminals of the battery and energized to put the battery into working condition. The hydrogen gas produced by the chemical reaction inside the battery moves upward through the gas flow channel in the sealed cover 2, and enters the gas collection chamber 8 after being filtered by the microporous filter membrane 9. The gas accumulates in the gas collection chamber 8, causing the pressure to rise. When the pressure reaches the opening pressure of the one-way valve 11, the gas is discharged through the exhaust pipe 10. The pressure sensor 12 monitors the gas pressure in the exhaust pipe 10 in real time and transmits the signal to the data acquisition unit 13. The data acquisition unit 13 records and stores the pressure change data for subsequent analysis.

[0023] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the drawings, and 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, and therefore should not be construed as a limitation of this utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that modifications may 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 device for measuring the gas evolution of an alkaline battery, characterized in that: The device includes a base (1), a sealing cover (2), a gas collection assembly (3), and a pressure sensing module (4). The base (1) is a rectangular plate structure with a positioning groove (5) for fixing alkaline batteries in the middle of the top surface. A conductive sheet (6) is embedded in the bottom wall of the positioning groove (5), and the conductive sheet (6) is connected to an external power source to simulate the working state of the battery. The sealing cover (2) is a hemispherical shell structure made of transparent material and covers the top surface of the base (1). The sealing cover (2) is screwed to the top edge of the base (1) by a threaded ring, and several supporting ribs (7) are evenly distributed on the inner wall of the sealing cover (2). Gas flow channels are formed between the supporting ribs (7).

2. The alkaline battery gas evolution measuring device according to claim 1, characterized in that: The gas collection assembly (3) is located at the bottom inside the sealed cover (2). The gas collection assembly (3) includes a gas collection chamber (8), a microporous filter membrane (9), and an exhaust pipe (10). The gas collection chamber (8) is a cylindrical cavity structure with an open bottom. The bottom end of the gas collection chamber (8) is fitted with a microporous filter membrane (9) and fixed by a buckle. The microporous filter membrane (9) allows gas to pass through while blocking liquid or particulate impurities from entering the gas collection chamber (8). The exhaust pipe (10) penetrates the top wall of the gas collection chamber (8) and communicates with the outside. A one-way valve (11) is provided at the outer end of the exhaust pipe (10).

3. The alkaline battery gas evolution measuring device according to claim 1, characterized in that: The pressure sensing module (4) is fixed to the top of the outer wall of the sealing cover (2). The pressure sensing module (4) includes a pressure sensor (12) and a data acquisition unit (13). The pressure sensor (12) is connected to the end of the exhaust pipe (10) through a trachea, and the signal output end of the pressure sensor (12) is electrically connected to the input end of the data acquisition unit (13).

4. The alkaline battery gas evolution measuring device according to claim 1, characterized in that: The number of the supporting ribs (7) is six and they are evenly distributed along the inner wall of the sealing cover (2). Each supporting rib (7) is arc-shaped and has the same curvature as the inner wall of the sealing cover (2). The cross-section of the supporting rib (7) is an isosceles trapezoid, and the top width of the supporting rib (7) is smaller than the bottom width.

5. The alkaline battery gas evolution measuring device according to claim 2, characterized in that: The bottom opening diameter of the gas collecting chamber (8) is 0.8 times the diameter of the microporous filter membrane (9), and the top wall of the gas collecting chamber (8) has several air vents.

6. The alkaline battery gas evolution measuring device according to claim 2, characterized in that: A regulating valve (16) is provided at the connection between the exhaust pipe (10) and the gas collecting chamber (8), and the regulating valve (16) controls the opening and closing degree of the exhaust pipe (10).

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