JPH0530298Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an electrolyte container for a storage battery for injecting an electrolyte into a storage battery consisting of a plurality of cells.

(Prior art and its problems) Conventionally, a specified amount of electrolyte is injected into each cell of a storage battery that can be used immediately by simply injecting electrolyte into the storage battery, that is, a ready-to-use storage battery. As a means, a monoblock type electrolytic solution container is used, in which one container is filled with electrolytic solution for one storage battery (all cells).

However, in this electrolyte container, since the electrolyte solution is poured into each cell sequentially by visual measurement, there is a problem in that the amount of solution injected into each cell is too large or too small, which necessitates readjustment work. Furthermore, since the electrolyte container is transferred one by one from one cell to another, it not only takes considerable time and effort to pour the liquid, but also has disadvantages such as the electrolyte spilling onto the top surface of the storage battery.

Therefore, in order to eliminate such drawbacks, we installed the same number of body parts as the number of cells in series, each having a liquid injection cylinder at the end.
An electrolyte container in which each cell of electrolyte is contained in each body is proposed in Japanese Patent Application Laid-open No. 74343/1983. However, the ends of the electrolyte container must be cut with scissors or nippers, which is time-consuming. Moreover, it is necessary to previously put an extra amount of electrolyte into the electrolyte container to cover the amount of electrolyte remaining in the cut and removed portion, and this amount of electrolyte is wasted. In addition, after injecting liquid into the storage battery, the sealing plug that seals the storage battery liquid injection port has to be stored until the liquid is injected, which is a hassle.

(Purpose of the invention) The purpose of the invention is to enable easy and reliable injection without using scissors or nippers, to ensure that all the electrolyte in the electrolyte container is injected into the storage battery, and to provide a special sealing plug for storage batteries. To provide an electrolytic solution container that does not require a storage space or the like and can prevent dirt and the like from entering into a storage battery.

(Means for Achieving the Object) In order to achieve the above object, the present invention connects the same number of body parts as the number of cells, in which the electrolyte of each cell unit of a storage battery is sealed, and injects it into each body part. In an electrolyte container for a storage battery, in which a liquid cylinder is provided, the interval between each liquid injection cylinder is made to match the interval between the liquid injection parts of the storage battery, and the liquid injection cylinder can be freely inserted into the liquid injection part, the tip of the liquid injection cylinder is opened. A bottomed cylindrical sealing plug for a storage battery that forms a thin film part that can be freely fitted onto the inner periphery of the liquid injection part of a storage battery and is used as a sealing member for the storage battery injection part after liquid injection.
The storage battery sealing plug is used as a protective cap for the electrolyte container by being formed separately from the electrolyte container and being able to fit onto the outer circumferential surface of the injection tube of the electrolyte container.

(Example) In FIG. 1 showing an electrolytic solution container to which the present invention is applied, an electrolytic solution container 1 is made of polyolefin-based synthetic resin and has six substantially rectangular parallelepiped body portions 2. The respective body parts 2 are integrally molded with each other, and a cylindrical liquid pouring cylinder 3 is integrally formed at the tip end (upper end in FIG. 1) of each body part 2. The inside of the body part 2 is a cavity separated by each body part 2,
Inside each body part 2, an electrolytic solution 5 for each cell of a storage battery (described in detail later) is stored. In addition, the electrolytic solution 5 is initially sealed in the body part 2, but due to vibrations during transportation, a portion 5a of the electrolytic solution 5 enters the liquid injection tube 3 and remains in the injection tube 3 due to surface tension. It is often kept inside.

As shown in FIG. 2, a thin film portion (tape heat seal portion) 6 is provided at the tip of each liquid injection tube 3, and the upper end of each liquid injection tube 3 is sealed by the thin film portion 6. A bottomed cylindrical storage battery sealing plug 30 is fitted onto the outer periphery of each liquid injection cylinder 3. The sealing plugs 30 are integrally connected by a flexible connecting portion 31, as shown in FIG.

In FIG. 7 showing an example of a storage battery in which the electrolyte container 1 is used, the storage battery 10 is equipped with a battery case 13 and an upper battery case lid 14, and inside the battery case 13 is a partition wall 1.
5 into, for example, six cell chambers 12, and a pole group (electrode plate, separator, etc.) is inserted into each cell chamber 12.

In the lid 14 portion corresponding to each cell chamber 12, a third
As shown in the figure, a concave liquid injection part 17 is integrally molded with the lid 14, and a liquid injection port 18 communicating with the cell chamber 12 below is formed at the bottom of the liquid injection part 17. A cylindrical protrusion 20 extending upward is formed integrally with the lid 14 at the liquid inlet 18, and the upper edge of the protrusion 20 is cut obliquely and has a sharp point. Further, an air hole 21 is formed in the side wall of the liquid injection part 17, and the air hole 21 is connected to the cell chamber 12 and the liquid injection part 17.
communicate with the inside. A cylindrical protrusion 25 is also formed on the lower side of the liquid injection port 18, and the flow rate (injection speed) is regulated by a passage within the protrusion 25.

Furthermore, aluminum foil 23 is fixed to the top surface of the lid 14 before the electrolyte is injected.
3 seals the liquid injection part 17, thereby preventing the electrode plates and the like in the cell chamber 12 from coming into contact with the outside air.

The distance D between the adjacent liquid injection tubes 3 in FIG. 2 and the distance D between the adjacent sealing plugs 30 correspond to the distance between the adjacent liquid injection parts 17 in FIG. The liquid cylinders 3 can be inserted into each liquid injection part 17 at the same time,
Further, the sealing plug 30 can also be fitted into each liquid injection part 17 shown in FIG. 3 at the same time.

Next, how to use it will be explained.

In order to start using the storage battery, it is necessary to inject electrolyte into the battery.
Use. First, the aluminum foil 23 shown in FIG. 3 is peeled off from the lid 14 to expose the liquid injection part 17.

Next, remove the sealing plug 30 of the electrolyte container 1, and
Insert each liquid injection tube 3 into each liquid injection part 17 upside down, and press it down to release the protrusion 2 as shown in Fig. 4.
0 to break the thin film part 6 and insert the liquid injection tube 3 into the protrusion 20.
cover.

Then, when an air hole is made with a pin or the like in the bottom of the body 2 of the electrolyte container 1 as shown in FIG. 7, the electrolyte 5 is injected into each cell chamber 12 at a predetermined injection rate. Air within the cell chamber 12 is exhausted from the air hole 21 shown in FIG.

When the liquid injection is completed, remove the container 1 from the liquid injection part 17 and insert a sealing plug 3 into each liquid injection part 17 as shown in FIG.
0 to seal the liquid injection port 18.

In particular, as shown in FIG. 3 above, each liquid injection part 1 of the storage battery
7 is formed with an upwardly projecting protrusion 20,
Just by inserting the liquid injection tube 3, the thin film part 6 can be broken by the protrusion 20 and the seal can be opened, and the liquid injection tube 3 can be connected to the liquid injection part 17 and the liquid injection operation can be started in that state, making it extremely practical. It is true. Also: (1) Since the electrolytic solution 5 for each cell is sealed in each body part 2, an accurate amount of electrolytic solution can be injected into each cell of the storage battery in a short time.

(2) Since the storage battery sealing plug 30 is placed over the liquid injection cylinder 3 to protect the thin film part 6, damage to the thin film part 6 is reliably prevented even if there is an external shock during transportation or storage. can.

(3) Since the storage battery sealing plug 30 is used as a protective material for the thin film portion 6 of the electrolyte container 1, there is no need for any special parts for protecting the thin film portion, and parts costs can be saved.

(4) The storage battery sealing plug 30 is required after filling the storage battery with liquid, so it is generally necessary to store it somewhere until the liquid is poured, but according to the present invention, the sealing plug 30 is needed when liquid is poured. Since the storage battery sealing plug 30 is provided in the electrolyte container, there is no need to secure a special storage place for the storage battery for the storage battery or take special measures to prevent loss, which is extremely practical. be.

(Another Embodiment) FIG. 8 shows an example in which a flow rate regulating passage 27 having a small flow area is formed in the liquid injection barrel 3. The injection speed is preferably 0.5 to 2.0 cc/sec because if it is too fast, the electrolyte may overflow from the battery or the desired battery performance may not be achieved.

(Effect of the invention) As explained above, the electrolyte container according to the invention connects the same number of body parts 2 as the number of cells, each filled with electrolyte for each cell of a storage battery, and injects liquid into each body part 2. In an electrolyte container for a storage battery, in which a cylinder 3 is provided, the interval between each liquid injection cylinder is made to match the interval between the liquid injection parts of the storage battery, and the liquid injection cylinder 3 can be freely inserted into the liquid injection part 17, the tip of the liquid injection cylinder 3 is A thin film portion 6 is formed in the portion,
Each body part 2 can be unsealed by tearing the thin film part 6, and can be fitted to the inner periphery of the liquid injection part 17 of the storage battery, and is used as a sealing member for the storage battery liquid injection part after injection of liquid. Since the sealing plug 30 is formed separately from the electrolyte container 1 and can be fitted to the outer circumferential surface of the liquid pouring cylinder 3 of the electrolyte container 1, there are the following advantages.

(1) A thin film part 6 is formed at the tip of the liquid pouring tube 3 of the container, and the electrolyte in each body part 2 is sealed by the thin film part 6, so that it can be used without using scissors or nippers, etc. The package can be opened by simply tearing the thin film part 6 with a protruding object, which eliminates the need for cutting tools such as scissors or nippers, making the injection process easier and more reliable. It can be injected inside.

(2) Since the storage battery sealing plug is fitted to the outer periphery of the liquid injection tube, there is no need to provide a special storage location for the storage battery sealing plug, making it convenient to store it before pouring liquid.

To explain in more detail, a storage battery sealing plug 30 that can be freely fitted into the liquid injection part 17 of the storage battery 10 and is used as a sealing member for the storage battery injection part after liquid injection is attached to the outer periphery of the liquid injection cylinder 3 of the electrolyte container 1. By being able to fit freely, the storage battery sealing plug 30 is used as a protective cap for the electrolyte container 1.

That is, one type of member, the sealing plug 30, is used as a protective cap for the thin film part 6 of the electrolyte container 1 before injection, and as a protective cap for the liquid injection part 17 of the storage battery 10 after injection.
By using it as a sealing plug, it can be effectively used twice, reducing the number of parts and making storage convenient.

(3) When used as a protective cap for the electrolyte container 1, the inner circumferential surface of the sealing plug 30 is fitted to the outer circumferential surface of the injection tube 3 of the electrolyte container 1, so that the inside of the sealing plug 30 is is in a state of being shut off from the outside, and dust, oil, etc. will not accumulate inside the sealing stopper 30 during storage, transportation, or handling of the electrolyte container 1.

Therefore, when removed from the electrolyte container 1 and attached to the liquid injection part 17 of the storage battery 10, the sealing plug 3
There is no risk of dirt or the like entering the storage battery from inside the battery.

(4) The sealing plug 30 is formed separately from the electrolyte container 1, and is attached to the electrolyte container by removably fitting into the liquid injection barrel 3, so that the electrolyte container 1 can be inserted many times. It can also be used as a protective cap.

[Brief explanation of the drawing]

Figure 1 is a partially sectional front view of an electrolyte container for a storage battery to which the present invention is applied, Figure 2 is a front view of the electrolyte container with the sealing plug removed, and Figure 3 is a front view of the electrolyte container with the liquid filling tube removed. Figure 4 is an enlarged cross-sectional view of the liquid injection tube showing the state immediately before it is connected to the storage battery. Figure 4 is an enlarged cross-sectional view of the liquid injection cylinder showing the state where the liquid injection cylinder is connected to the storage battery. An enlarged cross-sectional view of the liquid injection part showing the state in which the sealing plug is fitted, Fig. 6 is a perspective view of the entire storage battery sealing plug, Fig. 7 is a front view of the electrolyte container showing the liquid injection operation state, and Fig. 8 is an enlarged cross-sectional view showing a modified structure of the liquid injection cylinder. 1... Electrolyte container for storage battery, 2...
... body part, 3 ... liquid injection cylinder, 5 ... electrolyte, 6 ...
Thin film part, 10...Storage battery, 17...Liquid injection part, 30
...Sealed stopper.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Body parts filled with electrolyte for each cell unit of a storage battery are connected in the same number as the number of cells, and each body part is provided with a liquid injection tube, and the space between each liquid injection cylinder is In an electrolyte container for a storage battery, in which the spacing matches the interval between the injection parts of a storage battery and the injection tube can be freely inserted into the injection part, an unsealable thin film part is formed at the tip of the injection tube, and the injection tube of the storage battery is easily inserted. A bottomed cylindrical storage battery sealing plug that can be freely fitted to the inner periphery of the liquid part and is used as a sealing member for the storage battery injection part after liquid injection is formed separately from the electrolyte container. An electrolytic solution container for a storage battery, characterized in that the storage battery sealing plug is used as a protective cap for the electrolytic solution container by being able to fit freely onto the outer peripheral surface of the liquid injection cylinder. 2. The electrolyte container for a storage battery according to claim 1 of the utility model registration claim, in which the sealing plugs are integrally connected.