Double-exhaust-valve structure of lead-acid storage battery

Abstract

The utility model discloses a lead-acid storage battery double exhaust valve structure in the technical field of lead-acid storage batteries, which comprises a battery upper cover, a first exhaust valve seat and a second exhaust valve seat are arranged on the battery upper cover, a first exhaust valve is mounted in the first exhaust valve seat, and a second exhaust valve is mounted in the second exhaust valve seat. A second exhaust valve is mounted in the second exhaust valve seat, and the first exhaust valve seat and the second exhaust valve seat are respectively communicated with independent air passages in the lead-acid storage battery. Two mutually independent valve seats are arranged at the top of the lead-acid storage battery, and each valve seat is provided with an exhaust valve, so that a double-exhaust-valve structure is formed. And the positions of the two valve seats at the top of the battery are reasonably designed, so that the exhaust uniformity is ensured, and mutual influence caused by too close positions is avoided. And the valve seat is made of high-strength and corrosion-resistant engineering plastic, such as ABS (Acrylonitrile Butadiene Styrene), so that the valve seat can bear the pressure in the battery and the corrosion of electrolyte within the whole service life of the battery, and the structure is kept stable.

Description

Technical Field

[0001] This utility model relates to the field of lead-acid battery technology, and in particular to a dual exhaust valve structure for lead-acid batteries. Background Technology

[0002] Lead-acid batteries produce gases such as hydrogen and oxygen during charging and discharging. These gases need to be released from the battery in a timely manner to prevent excessive internal pressure from affecting battery performance or even causing safety problems.

[0003] Traditional lead-acid batteries typically use a single exhaust valve structure. If the exhaust valve becomes blocked, damaged, or poorly sealed, gas may not be able to escape properly, causing the internal pressure of the battery to rise sharply. This can lead to serious consequences such as the safety valve opening or even the battery casing rupturing.

[0004] Furthermore, during operation, single-vent valves are prone to acid leakage due to the impact of the battery's internal electrolyte and the complex chemical environment. This leakage not only corrodes surrounding battery equipment but also causes electrolyte loss, reducing battery lifespan. Therefore, developing a more reliable and safer vent valve structure is of great significance to the development of lead-acid batteries. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a dual exhaust valve structure for lead-acid batteries, including a battery cover. The battery cover is provided with two first exhaust valve seats and a second exhaust valve seat. A first exhaust valve is installed inside the first exhaust valve seat, and a second exhaust valve is installed inside the second exhaust valve seat. The first exhaust valve seat and the second exhaust valve seat are respectively connected to independent air passages inside the lead-acid battery.

[0006] The two exhaust valves are installed on their own independent valve seats, and each valve seat is connected to the inside of the lead-acid battery through an independent air passage. This means that each exhaust valve is located in its own independent valve seat and is directly connected to the inside of the battery through its own passage.

[0007] A first rubber sealing gasket is provided between the first exhaust valve seat and the first exhaust valve, and a second rubber sealing gasket is provided between the second exhaust valve seat and the second exhaust valve.

[0008] The lead-acid battery cover and dual exhaust valves were rationally designed and manufactured using plastic injection molding. During manufacturing, the material formulation and molding process parameters were strictly controlled to ensure the mechanical strength and corrosion resistance of the lead-acid battery cover.

[0009] The independent air passages connected to the first exhaust valve seat and the second exhaust valve seat are not interconnected.

[0010] The valve seat is made of high-strength, corrosion-resistant engineering plastic, namely ABS, to withstand the internal pressure of the battery and the corrosion of the electrolyte. The selection of ABS material not only takes into account its physical advantages, but also its chemical stability, to ensure that it can maintain structural integrity and functional effectiveness even when exposed to harsh working environments for a long time.

[0011] The battery cover has a positive terminal mark and a negative terminal mark, and the battery cover has a positive terminal connection port and a negative terminal connection port.

[0012] A stepped plate is fixedly connected to the lower part of the battery cover, and the battery cover has a groove, with an arched plate at the top of the groove.

[0013] The second exhaust valve is provided with a cover plate, which is connected to the valve body housing via a connecting lug, and the cover plate is provided with an exhaust hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Independent Valve Seat Configuration: Two independent valve seats are installed on the top of the lead-acid battery, each with its own vent valve, forming a dual vent valve structure. The two valve seats are strategically positioned on the top of the battery to ensure uniform venting while avoiding interference from close proximity. The valve seats are made of high-strength, corrosion-resistant engineering plastics, such as ABS, ensuring they can withstand internal battery pressure and electrolyte corrosion throughout the battery's lifespan, maintaining structural stability. Each vent valve is connected to an independent venting channel extending from the valve seat to the gas generation area inside the battery. The two venting channels are independent and do not interfere with each other. Even if one venting channel becomes blocked or damaged, the other will continue to function normally, ensuring smooth gas discharge from the battery and reducing acid leakage at the valve ports and external malfunctions caused by excessive internal pressure. Each exhaust valve employs a multi-layer sealing structure, and a rubber sealing gasket is installed at the connection between the exhaust valve and the valve seat. The rubber sealing gasket has good elasticity and acid resistance, such as ethylene propylene rubber, which can tightly fit the contact surface between the exhaust valve and the valve seat, effectively preventing electrolyte leakage from the connection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the battery cover structure in this utility model.

[0018] Figure 2 This is a schematic diagram of the battery cover and vent valve structure in this utility model.

[0019] Figure 3 This is a schematic diagram of the exhaust valve structure in this utility model.

[0020] In the diagram: 1. Battery cover; 2. First vent valve seat; 3. Second vent valve seat; 4. First vent valve; 5. Second vent valve; 51. Valve body shell; 52. Connecting lug; 53. Cover plate; 54. Vent hole; 6. Positive terminal; 7. Negative terminal; 8. Negative terminal mark; 9. Positive terminal mark; 10. Groove; 11. Arched plate; 12. Stepped plate. Detailed Implementation

[0021] 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.

[0022] like Figure 1-3 The diagram illustrates a dual venting valve structure for a lead-acid battery, comprising a battery cover 1. The battery cover 1 has two valve seats: a first venting valve seat 2 and a second venting valve seat 3. A first venting valve 4 is installed inside the first venting valve seat 2, and a second venting valve 5 is installed inside the second venting valve seat 3. The first and second venting valve seats 2 and 3 are respectively connected to independent venting channels inside the lead-acid battery. In other words, the two venting valves are installed on their respective independent valve seats, and each valve seat is connected to the inside of the lead-acid battery through an independent venting channel. This means that each venting valve is located in its independent valve seat and directly connected to the battery interior through its own channel. This design ensures that even if one venting channel is blocked or damaged, the other venting channel can still effectively vent gas, improving the reliability of the entire system.

[0023] The lead-acid battery cover and dual exhaust valves were rationally designed and manufactured using plastic injection molding. During manufacturing, the material formulation and molding process parameters were strictly controlled to ensure the mechanical strength and corrosion resistance of the lead-acid battery cover. Each manufactured lead-acid battery cover underwent a visual inspection to ensure it was free of defects such as bubbles and cracks. Measuring tools were used to check key dimensions, such as the orifice diameter of the exhaust valves, to ensure they met design requirements. The two exhaust valves were then installed on their corresponding valve seats, ensuring a tight and secure fit between the rubber sealing gaskets and the valve seats.

[0024] The valve seat is made of high-strength, corrosion-resistant engineering plastic, namely ABS, to withstand the internal pressure of the battery and the corrosion of the electrolyte. The selection of ABS material not only takes into account its physical advantages, but also its chemical stability, to ensure that it can maintain structural integrity and functional effectiveness even when exposed to harsh working environments for a long time.

[0025] Each exhaust valve is equipped with a multi-layer sealing structure, especially at the joint between the exhaust valve and the valve seat, where a rubber gasket made of ethylene propylene rubber is installed due to its excellent acid resistance. Specifically, a first rubber gasket is provided between the first exhaust valve seat 2 and the first exhaust valve 4, while a second rubber gasket is provided between the second exhaust valve seat 3 and the second exhaust valve 5. This sealing measure greatly enhances the sealing effect of the exhaust system and effectively prevents acid leakage.

[0026] The first exhaust valve seat 2 and the second exhaust valve seat 3 are each connected to an independent air passage, which are completely isolated from each other and do not interfere with each other. The advantage of this design is that if one air passage malfunctions or becomes blocked, the other path can still operate normally, ensuring that gas can be discharged smoothly. This method greatly improves the safety factor of lead-acid batteries and reduces the overall risk caused by the failure of a single exhaust system.

[0027] The surface of the battery cover 1 clearly marks the positive terminal (9) and negative terminal (8), and includes a positive terminal connector (6) and a negative terminal connector (7). These design features simplify the user's operation, enabling easy identification and correct connection of the wires. Clear labeling helps prevent misoperation and ensures safe operation of the device.

[0028] A step plate 12 is fixedly connected to the lower part of the battery cover 1. The battery cover 1 has a groove 10, and an arched plate 11 is provided above the groove 10. The groove 10 and the arched plate 11 together form a convenient handle structure, which makes it easier for users to lift and move the entire battery unit.

[0029] The second vent valve 5 is specially equipped with a cover plate 53, which is connected to the valve body housing 51 via a connecting lug 52. The cover plate 53 has a vent hole 54, and the thickness of the connecting lug 52 is precisely calculated to automatically disconnect when the internal pressure is too high, causing the cover plate 53 to detach and quickly release the excessive pressure, thus preventing explosion. This design significantly improves the safety of battery use and reduces potential safety hazards.

[0030] The dual exhaust valve structure of this lead-acid battery effectively reduces the risk of acid leakage at the valve orifice and battery bulging and cracking caused by exhaust valve failure, improves the safety and reliability of lead-acid batteries, and provides strong support for the widespread application of lead-acid batteries in various fields. It has significant practical value and market promotion prospects.

[0031] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A dual venting valve structure for a lead-acid battery, comprising a battery cover (1), characterized in that: The battery cover (1) is provided with two first exhaust valve seats (2) and second exhaust valve seats (3). The first exhaust valve seat (2) is equipped with a first exhaust valve (4), and the second exhaust valve seat (3) is equipped with a second exhaust valve (5). The first exhaust valve seat (2) and the second exhaust valve seat (3) are respectively connected to the independent air passage inside the lead-acid battery.

2. The dual exhaust valve structure for a lead-acid battery according to claim 1, characterized in that: A first rubber sealing gasket is provided between the first exhaust valve seat (2) and the first exhaust valve (4), and a second rubber sealing gasket is provided between the second exhaust valve seat (3) and the second exhaust valve (5).

3. The dual exhaust valve structure for a lead-acid battery according to claim 1, characterized in that: The independent air passages connected to the first exhaust valve seat (2) and the second exhaust valve seat (3) are not interconnected.

4. The dual exhaust valve structure for a lead-acid battery according to claim 1, characterized in that: The battery cover (1) is provided with a positive terminal mark (9) and a negative terminal mark (8), and the battery cover (1) is provided with a positive terminal connection port (6) and a negative terminal connection port (7).

5. The dual exhaust valve structure for a lead-acid battery according to claim 1, characterized in that: The lower part of the battery cover (1) is fixedly connected to a step plate (12), and the battery cover (1) is provided with a groove (10), and the upper part of the groove (10) is provided with an arched plate (11).

6. The dual exhaust valve structure for a lead-acid battery according to claim 1, characterized in that: The second exhaust valve (5) is provided with a cover plate (53), which is connected to the valve body shell (51) through a connecting lug (52), and the cover plate (53) is provided with an exhaust hole (54).

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