Automatic liquid level supplementing device for flooded lead-acid storage battery

Abstract

An automatic liquid level supplementing device for a flooded lead-acid storage battery comprises a liquid storage tank used for storing electrolyte, the liquid storage tank comprises a tank body, a liquid inlet hole is formed in the top of the tank body, a bottle plug is installed at the liquid inlet hole, a liquid guide pipe is arranged on the lower portion of the tank body, a vent pipe opening is formed in the position, close to the liquid inlet hole, of the wall of the tank body, and the lower end of the liquid guide pipe is connected with a liquid supplementing nozzle; the liquid supplementing nozzle is composed of a liquid guiding nozzle and an air guiding nozzle, the lower portion of the liquid guiding nozzle and the lower portion of the air guiding nozzle are connected into a whole, the upper portion of the liquid guiding nozzle and the upper portion of the air guiding nozzle are separated, lower ports of the liquid guiding nozzle and the air guiding nozzle are flush, the outer wall of an upper port of the liquid guiding nozzle is provided with more than two circles of liquid leakage prevention protruding ribs, and an upper port of the air guiding nozzle is connected with a vent pipe opening through an air guiding pipe. The device is simple in structure and convenient to use, liquid supplementing can be automatically stopped when reaching the target liquid level line, and extra operation is not needed.

Description

Technical Field

[0001] The utility model belongs to the technical field of lead-acid batteries, and in particular relates to a liquid replenishing device. Background Art

[0002] During the manufacturing and testing process of flooded lead-acid batteries, it is common to encounter the situation of replenishing the electrolyte, that is, it is necessary to replenish the electrolyte level in each cell of the battery to a certain height. The acid replacement step after the formation process is completed in the manufacturing process: first pour out the formation acid and add the finished battery acid. This step generally requires that the liquid level of the electrolyte in each cell of the battery after the acid replacement remains consistent. However, since it is impossible to ensure that the amount of acid poured out of each cell is completely consistent during the acid pouring process, in actual operation, it is often necessary to statistically evaluate the historical acid pouring data, and then replenish the acid by quantitative acid addition to achieve the purpose of consistent electrolyte liquid level height. Since the quantitative amount of acid replenishment is estimated based on the empirical data of acid pouring, deviations often occur in the actual production process, resulting in problems such as poor cell consistency. Summary of the invention

[0003] The utility model aims to solve the above-mentioned deficiencies of the prior art, thereby providing an automatic liquid level replenishing device for flooded lead-acid batteries, which has a simple structure and is easy to use.

[0004] The technical scheme of the utility model is as follows: it comprises a liquid storage tank for storing electrolyte, the liquid storage tank comprises a tank body, a liquid inlet hole is provided on the top of the tank body, a bottle stopper is installed at the liquid inlet hole, a liquid guide tube is provided at the lower part of the tank body, a vent pipe opening is provided on the tank body wall near the liquid inlet hole, and the lower end of the liquid guide tube is connected with a liquid replenishment nozzle; the liquid replenishment nozzle is composed of a liquid guide nozzle and a vent pipe opening, the lower part of the liquid guide nozzle and the vent pipe nozzle are connected as a whole, the upper part of the liquid guide nozzle and the vent pipe nozzle are separated, the lower end of the liquid guide nozzle and the vent pipe nozzle are flush, the outer wall of the upper end of the liquid guide nozzle is provided with more than two circles of anti-leakage convex ribs, and the upper end of the vent pipe nozzle is connected with the vent pipe opening via the vent pipe.

[0005] The liquid inlet hole is a truncated cone hole, the upper end of the truncated cone hole is large and the lower end is small. The plug body of the bottle stopper is a truncated cone structure that matches the truncated cone hole, and a handle is connected to the upper end of the plug body.

[0006] The vent pipe opening does not contact the electrolyte in the liquid storage tank.

[0007] The liquid guiding tube and the air guiding tube are provided with valves.

[0008] The tank body is a spherical structure.

[0009] The liquid guiding nozzle and the upper part of the gas guiding nozzle are separated into two parts with different heights, and the upper port of the upper part of the gas guiding nozzle is higher than the upper port of the upper part of the liquid guiding nozzle.

[0010] During use, the device does not need to consider the liquid level or electrolyte content before refilling, and does not need to weigh or quantify the added electrolyte. Through the principle of air pressure balance, the device directly refills according to the target liquid level. When the target liquid level line is reached during the refilling process, it will automatically stop without additional operation. It can reduce the difficulty of operation, improve the consistency of electrolyte height / electrolyte volume in each cell of the battery, improve product quality, and avoid problems such as inconsistent acid volume in each cell caused by the original technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the utility model after assembly;

[0012] Figure 2 It is a partial cross-sectional view after decomposition of the utility model;

[0013] Figure 3 It is a cross-sectional view of the liquid infusion nozzle of the utility model;

[0014] Figure 4 is a cross-sectional view of the refill nozzle after assembly;

[0015] Figure 5 It is a schematic diagram of the use process of the utility model;

[0016] In the figure: 1. Bottle stopper; 2. Liquid storage tank; 2.1. Liquid inlet hole; 2.2. Tank body; 2.3. Liquid guide tube; 2.4. Vent opening; 3. Liquid filling nozzle; 3.1. Liquid guide nozzle; 3.2. Gas guide nozzle; 4. Gas guide tube; 5. Valve; 6. Single cell / slot that needs to be filled with liquid; 6.1. Actual liquid level line; 6.2. Target liquid level line. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model are clearly and completely described in conjunction with the drawings in the embodiments of the utility model. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] It should be noted that similar numbers and letters represent similar items in the drawings. In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model.

[0019] The specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings.

[0020] Figure 1-5 The utility model comprises a bottle stopper 1, a liquid storage tank 2, a liquid infusion nozzle 3 and an airway 4.

[0021] The automatic liquid level replenishing device described in the technical solution of the utility model has a bottle stopper 1 and a liquid inlet hole 2.1 on the top of the liquid storage tank 2 that cooperate with each other to achieve a sealing effect.

[0022] The liquid storage tank 2 described in the technical solution of the utility model is composed of a liquid inlet 2.1, a tank body 2.2, a liquid guide tube 2.3, and a venting pipe opening 2.4. The liquid inlet 2.1 cooperates with the bottle stopper 1 to achieve a sealing effect, the tank body 2.2 is used to store electrolyte, the liquid guide tube 2.3 transports electrolyte and cooperates with the liquid replenishing nozzle 3, and the venting pipe opening 2.4 is connected to the air guide tube 4 to play a role in connecting to the external atmospheric pressure.

[0023] The liquid replenishing nozzle 3 described in the technical solution of the utility model is composed of a liquid guide nozzle 3.1 and an air guide nozzle 3.2. The liquid guide nozzle 3.1 cooperates with the liquid guide tube 2.3 and outputs electrolyte to the lower part. The air guide nozzle 3.2 is connected to the air guide tube 4. The lower end opening of the air guide nozzle 3.2 is the determining position of the liquid level height, and shall not be lower than the lower end opening of the liquid guide nozzle 3.1.

[0024] The automatic liquid level replenishing device described in the technical solution of the utility model is used as follows:

[0025] Preparation: Close valve 5, open bottle stopper 1, inject the required electrolyte into tank 2.2 through liquid inlet 2.1, and note that the liquid level should not be higher than the lowest opening of vent pipe 2.4, and plug bottle stopper 1 tightly.

[0026] Liquid filling operation: Move the automatic liquid filling level device to the position where liquid filling is required, and adjust the lower opening of the gas nozzle 3.2 of the liquid filling nozzle 3 to the target liquid level required for liquid filling. Open the valve 5 to fill the liquid. When the liquid level reaches the lower opening of the gas nozzle 3.2, the electrolyte will automatically stop flowing and close the valve. Repeat this process until all batteries are filled or the electrolyte in the tank 2.2 is consumed.

[0027] This embodiment only lists one form. For designs that have not been changed in principle, such as changing the liquid inlet 2.1 and the bottle stopper 1 to an infusion pipe and a valve, and replacing the above operations with automated equipment control, all of these are equivalent replacements of some features of the present technology.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic liquid filling device for flooded lead-acid batteries, characterized in that: The invention comprises a liquid storage tank (2) for storing electrolyte, the liquid storage tank (2) comprising a tank body (2.2), a liquid inlet hole (2.1) being provided at the top of the tank body (2.2), a bottle stopper (1) being installed at the liquid inlet hole (2.1), a liquid guide tube (2.3) being provided at the bottom of the tank body (2.2), a venting pipe opening (2.4) being provided on the tank body wall near the liquid inlet hole (2.1), and a lower end of the liquid guide tube (2.3) being connected to a liquid replenishing nozzle (3); the liquid replenishing nozzle (3) being provided with a The liquid guide nozzle (3.1) and the air guide nozzle (3.2) are composed of a liquid guide nozzle (3.1) and an air guide nozzle (3.2), the lower parts of the liquid guide nozzle (3.1) and the air guide nozzle (3.2) are connected as a whole, the upper parts of the liquid guide nozzle (3.1) and the air guide nozzle (3.2) are separated, the lower ends of the liquid guide nozzle (3.1) and the air guide nozzle (3.2) are flush, the outer wall of the upper end of the liquid guide nozzle (3.1) has more than two circles of anti-leakage convex ribs, and the upper end of the air guide nozzle (3.2) is connected to the ventilation pipe opening (2.4) via the air guide pipe (4).

2. The automatic liquid filling device for flooded lead-acid batteries according to claim 1, characterized in that: The liquid inlet hole (2.1) is a truncated cone hole, the upper end of the truncated cone hole is large and the lower end is small, the plug body of the bottle stopper (1) has a truncated cone structure that matches the truncated cone hole, and the upper end of the plug body is connected to a handle.

3. The automatic liquid filling device for flooded lead-acid batteries according to claim 1, characterized in that: The vent pipe opening (2.4) does not contact the electrolyte in the liquid storage tank (2).

4. The automatic liquid filling device for flooded lead-acid batteries according to claim 1, characterized in that: The liquid guide tube (2.3) and the air guide tube (4) are provided with valves (5).

5. The automatic liquid filling device for flooded lead-acid batteries according to claim 1, characterized in that: The tank body (2.2) is a spherical structure.

6. The automatic liquid filling device for flooded lead-acid batteries according to claim 1, characterized in that: The upper parts of the liquid guide nozzle (3.1) and the gas guide nozzle (3.2) are separated into two parts with different heights, and the upper port of the upper part of the gas guide nozzle (3.2) is higher than the upper port of the upper part of the liquid guide nozzle (3.1).

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