JPH04132163A - Liquid injection device for storage battery - Google Patents

Abstract

PURPOSE:To accelerate the liquid injection speed into a storage battery, prevent the blowout of a liquid when a liquid injection section is closed, and simply perform the liquid injection work by coupling a lower stopper with the stopper of a moving sleeve, and separating the outer wall face of the moving sleeve from a through hole when the stopper is brought into contact with the stopper of a fixed sleeve. CONSTITUTION:A cylinder section 14 has a screw section 15 at the upper section of an outer wall, an exhaust hole 17 below it, and a stopper 18 at the lower section. A moving sleeve 24 is slid in contact with the inner wait face of a fixed sleeve 8, and it has a stopper 26 on an outer wall face 25 and a stopper 30 at the lower section. In a liquid port plug 12, the screw section 15 is screwed on the screw section 7 of a liquid injection port 6, the stopper 18 is coupled with the stopper 30 of the moving sleeve 24, and the outer wall face 25 of the moving sleeve 24 is separated from a through hole 9 when the stopper 26 is brought into contact with the stopper 11 of the fixed sleeve 8.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electrolyte injection device for a storage battery, which fills the electrolyte up to a specified level.

BACKGROUND OF THE INVENTION Conventionally, as shown in FIG. 7, this type of device has a tray 36 formed on the upper surface of the storage battery 1, a liquid injection/exhaust hole 38 in the bottom wall 37 of the tray 36, and a specified electrolyte solution at the lower end. It is known to have a sleeve 39 that reaches the bottom wall 37 of the tray 36 and whose upper end is located above the bottom wall 37 of the tray 36. This is because when the electrolyte 3 is poured into the tray 36 to the extent that it accumulates, the electrolyte 3
Flows into the storage battery from the injection/exhaust hole 38, and the air inside the storage battery is exhausted from the sleeve 39, so that so-called inflowing electrolyte and air are smoothly replaced, and injection is performed. However, when the liquid level reaches the lower end of the sleeve 39, the sleeve 39 is blocked by the electrolytic solution 3, and the electrolytic solution is no longer replaced with air, so that no more electrolytic solution can enter. If vibration is applied in this state to disturb the liquid level, a gap is created at the lower end of the sleeve 39 for air to escape, causing the electrolyte 3 accumulated in the tray 36 to flow in through the injection/exhaust hole 38. It is made to reach the specified liquid level. Further, after the liquid is injected, gas is discharged from the liquid injection/exhaust hole 38.

[Problem to be solved by the invention]

In the conventional type, if the liquid injection/exhaust hole is large, the electrolyte is replaced with air in the liquid injection/exhaust hole, making it impossible to secure the specified liquid level. The dual-exhaust hole must be made extremely small. Therefore, there is a drawback that it takes an extremely long time to inject the liquid.

In addition, since the flat area of the tray must be wide, the tray is common to all three cells, and the lid that closes the tray is
A fitting type was used that moved up and down to attach and detach. For this reason, if liquid spilled from the tray accumulates in the fitting groove, there is also the drawback that the liquid will spray out from the fitting gap when the tray lid is attached.

Furthermore, due to the structure of the tray, it can only be formed shallowly, and the liquid injection speed is slow, so when pouring liquid into the tray,
The liquid must be filled very carefully into the tray as the liquid tends to overflow.

In other words, there was also a drawback that the liquid injection work was extremely troublesome.

The present invention has been made in view of the above-mentioned problems of the conventional technology, and its purpose is to increase the speed of liquid injection into the storage battery and to reduce the amount of liquid when the liquid injection part is closed. It is an object of the present invention to provide a storage battery liquid injection device that does not cause spouting and allows easy liquid injection work.

[Means to solve the problem]

In order to achieve the above object, a storage battery injection device according to the present invention is a storage battery injection device having a lid 2, a liquid port plug 12, and a movable sleeve 24, wherein the lid 2 is a liquid injection device. The liquid injection port 6 has a threaded portion 7 on its inner surface, and the fixed sleeve 8 extends downward from the periphery of the liquid injection port 6. , a through hole 9 is formed in the upper part, and an A stopper 11 is formed in the lower part, and the liquid port plug 12 has a head part 1.
3 and a cylindrical part 14, the head 12 has an A exhaust hole 20, the cylindrical part 14 has a threaded part 15 on the upper side of the outer wall, a B exhaust hole 17 below it, and a lower part. The movable sleeve 24 slides in contact with the inner wall surface of the fixed sleeve 8, and has a B stopper 18 at the outer wall surface 25.

It has a stopper 26 and a B° stopper 30 at the lower part. The movable sleeve 24 fits into the B° stopper 30 of the movable sleeve 24, and when the A' stopper 26 abuts the A stopper 11 of the fixed sleeve 8, the outer wall surface 25 of the movable sleeve 24 It is characterized by being removed from the through hole 9.

Function When the movable sleeve is positioned above the fixed sleeve (see Figure 6), the through hole of the fixed sleeve is closed, and the air in the space above the electrolyte level and the outside air can flow from the lower end of the fixed sleeve. This is done through the movable sleeve and the inlet. When the electrolyte level reaches the lower end of the fixed sleeve after performing the Imajyo solution, the air in the upper space is no longer replaced with the electrolyte, and the electrolyte accumulates inside the fixed sleeve, indicating that the specified amount of electrolyte has been injected. I understand. Thereafter, when the liquid inlet plug is fitted into the liquid inlet and the movable sleeve is moved downward (see Fig. 1), the through hole opens and the through hole and the A and B exhaust holes of the liquid inlet plug are inserted. , the air in the upper space and outside air circulate, and the air in the upper space and the electrolyte in the fixed sleeve are replaced;
It reaches the specified electrolyte level set slightly above (approximately) above the lower end of the fixed sleeve.

〔Example〕

Examples will be described with reference to the drawings.

In FIGS. 1 to 4, reference numeral 1 denotes a storage battery equipped with a liquid injection device for a storage battery according to the present invention, and has a lid 2 on the top, and an electrolytic solution 3 is housed inside the storage battery 1. The lid 2 has a concave portion 4, and a liquid filling port 6 is opened in the bottom wall surface 5, and a threaded portion 7 is formed in the liquid filling port 6. Further, a fixed sleeve 8 extends downward from the liquid injection port 6, and the fixed sleeve 8 is formed to surround the liquid injection port 6, and its lower end is connected to the specified electrolyte. It is located at the liquid level, has a through hole 9 provided above, and has an A stopper 11 formed by a step on the inner wall 10. Reference numeral 12 denotes a liquid inlet stopper, which has a head 13 and a cylindrical part 14, and a threaded part 15 corresponding to the threaded part 7 of the liquid inlet 6 is provided above the outer wall of the cylindrical part 14. , a sleeve 16 extends downward, an A exhaust hole 17 is formed in the upper part of the sleeve 16, and a bulged B stopper 18 and a notch 19 are provided at the lower end. The notch 19 is formed across the B stopper 18. The head 13 has a B exhaust hole 20 that communicates with the outside air, and a gasket 21 on the lower surface. In the interior 22 of the cylindrical portion 14, splash-proof fins 23 are formed alternately downward.

24 is a movable sleeve, and the outer wall surface 2 of the movable sleeve 24
5 is formed so as to slide closely against the wall surface located above the A stopper 11 of the fixed sleeve 8, and has an A' stopper 26, and the A° stopper 2
The upper end 27 of the movable sleeve 24 contacts the through hole 9 when the A' stopper 26 comes into contact with the A stopper 11. On the other hand, when the upper end 27 of the movable sleeve 24 is located almost at the upper end (root) 28 of the fixed sleeve 8, the through hole 9 is closed by the outer wall surface 25. It is designed to be Further, a concave B' stopper (30) is provided below the inner wall surface 29, and the B' stopper 30 can be forcefully inserted into the B' stopper 18 from above. In other words, the lower bank 31 forming the B° stopper 30 is formed to protrude further inward than the upper bank 32.

Reference numeral 33 denotes a space above the electrolyte level in the storage battery 1, which is surrounded by the wall 34 of the lid 2. When the lower end of the fixing sleeve 8 is closed by the electrolyte 3, the space above the electrolyte level is closed. The portion 33 is also closed, and the through hole 9 is the only opening facing the space 33 above the electrolyte surface.

To explain this operation, as shown in Figure 1,
When the liquid inlet plug 12 is attached to the liquid inlet 6 of the lid 2, the movable sleeve 24 is pushed down by the B stopper 18 of the liquid inlet plug 12, and the A° stopper 2 of the movable sleeve 24 is pressed down.
6 is in contact with the A stopper 11 of the fixed sleeve 8,
The through hole 9 is in an open state. Therefore, the gas generated inside the storage battery is smoothly discharged to the outside through the through hole 9, then through the A exhaust hole 17, and then through the B exhaust hole 20. As shown in Figure 5, the liquid port plug 12
When the movable sleeve 2 is screwed off, the B stopper 18
4 is pulled up, the upper end 27 of the movable sleeve 24 reaches the upper end 28 of the fixed sleeve 8, and the B stopper 18 is disengaged from the B° stopper 30 of the movable sleeve 24 and separated. In this state, when the electrolyte level has not reached the lower end of the fixed sleeve 8, when the electrolyte is injected from the injection port 6, the electrolyte 3
The air in the space 33 above the electrolyte surface is replaced with the electrolyte solution 3 until the electrolyte solution reaches the lower end of the fixed sleeve 8, but when the liquid level reaches the lower end of the fixed sleeve 8, the air and electrolyte solution 3 are no longer replaced. Therefore, the electrolytic solution 3 cannot be injected into the space 33, and as shown in FIG.
It can be seen that the amount of electrolyte has accumulated and the specified amount of electrolyte has been reached. Next, when the liquid inlet stopper 12 is screwed into the liquid inlet 6, the movable sleeve 24 moves downward as shown in FIG. 1, and comes into contact with the A' stopper (26A stopper 11).

At this time, the through hole 9 of the fixed sleeve 8 is opened, and the air in the space 33 and the outside air flow through the through hole 9 and the A exhaust hole 20 and the B exhaust hole 17 of the spout 12. Therefore, the electrolytic solution 3 in the fixed sleeve 8 is absorbed into the space 3.
The liquid level is the same as shown in Figure 1.

This liquid level 35 is approximately the same as the specified electrolyte level.

Further, when the storage battery is used in this state, the gas generated inside is exhausted through the through hole 9, the A exhaust hole 20, the B exhaust hole 17, or the notch 19 of the liquid port plug 12 and the A exhaust hole 20.

Effects of the Invention Since the present invention is configured as described above, it produces the following effects.

(1) Since the liquid injection port can be made larger, the liquid injection speed can be increased and the liquid injection work can be done in a shorter time.

('2J) Since the liquid inlet and the liquid inlet stopper are screwed together and closed with a gasket, etc., the liquid will not spray out from the fitting part.

(3) After injecting the electrolyte, apply vibration to the storage battery,
The conventional work of injecting the electrolyte accumulated in the tray is no longer necessary.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of the liquid injection device of the present invention, Fig. 2 is a longitudinal cross-sectional view of the main part of the lid according to the present invention, Fig. 3 is a longitudinal cross-sectional view of the liquid spout stopper, and Fig. 4 is a longitudinal cross-sectional view of the liquid injection device of the present invention. FIG. 5 is a vertical cross-sectional view of the liquid injection device immediately before removing the liquid port plug, FIG. 6 is a vertical cross-sectional view of the liquid injection device of the present invention immediately after liquid injection, and FIG. 7 is a vertical cross-sectional view of the conventional liquid injection device. It is a front view. 2...Lid 6...Liquid injection lower...Threaded part 8...Fixing sleeve 9...Through hole 11...A stopper 12...Liquid port plug
13...Head 14...Cylindrical part 15...Threaded part 17...B exhaust hole 18...B stopper 20...A exhaust hole 24
...Movable sleeve 25...Outer wall surface 26...A
°Stopper 30...B' Stopper Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 6 Fig. 6

Claims (1)

[Claims] A lid (2), a liquid spout (12), and a movable sleeve (24).
), the lid (2)
has a liquid inlet (6) and a fixing sleeve (8), the liquid inlet (6) has a threaded portion (7) on its inner surface, and the fixing sleeve (8) extends downward from around the liquid inlet (6), has a through hole (9) formed in the upper part, and has an A stopper (11) in the lower part, and the liquid inlet plug (12) is Head (13) and cylindrical part (14)
The head (12) has an A exhaust hole (20), and the cylindrical part (14) has a threaded part (15) on the upper side of the outer wall;
There is a B exhaust hole (17) below it, and a B stopper (17) at the bottom.
8), and the movable sleeve (24) has the fixed sleeve (8).
and has an A' stopper (26) on the outer wall surface (25) and a B' stopper (30) at the lower part, and the liquid port plug (12) is connected to the screw The cut portion (15) is screwed into the threaded portion (7) of the liquid injection port (6), and the B stopper (1
8) is the B' stopper (30) of the movable sleeve (24).
), and the movable sleeve (24) is such that the A' stopper (26) is fitted into the fixed sleeve (8).
When it comes into contact with the A stopper (11) of the outer wall surface (
25) is removed from the through hole (9).