JPH08222205A - Lead-acid battery - Google Patents

Abstract

PURPOSE: To simplify battery finishing process by disposing specific constitution in a lead-acid battery and thereby eliminating the need of providing an exclusive heat deposit means after charging in attachment of a liquid inlet plug in an assembly plant or a finishing plant. CONSTITUTION: A battery jar lid 2 having a liquid inlet portion 5 and a liquid inlet plug 3 of explosion-proof structure, comprising a liquid inlet plug proper 10 and a liquid inlet plug 3 and the battery jar lid 2 are irreversibly attached together by way of fitting means formed in the liquid inlet plug 3 and fitting means formed in the battery means formed in the preferably, fitting means formed in the liquid inlet plug 3 and fitting means formed in the liquid inlet portion 5 of the battery jar lid are irreversibly attached together. And also, a cell of the lead-acid battery is generally closed by means of the liquid inlet plug 3. The liquid inlet plug 3 is preferably provided with liquid overflow prevention, so that damaging to user's clothing due to splash of electrolyte is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead storage battery.

[0002]

2. Description of the Related Art A general structure of a conventional lead-acid battery is shown in FIGS.

In FIG. 1, 31 is a battery case, 32 is an inner lid,
33 is an upper lid equipped with an explosion-proof filter. In this battery, the battery case 31 and the inner lid 32 and the inner lid 32 and the upper lid 33 are heat-welded, and the space formed by the inner lid 32 and the upper lid 33 functions as an overflow-proof structure and an explosion-proof structure. Is formed to have. In addition, this battery does not have a screw-type liquid spout similar to that found in general lead-acid batteries, so it has a battery structure that cannot be maintained by the user, and is unexpected due to unfamiliar operation by the user. It is very safe because it does not cause a situation.

However, once the inner lid 32 and the upper lid 33 are heat-welded, the battery has a closed structure, so that the liquid injection after the heat-welding becomes impossible. That is, in manufacturing the battery, the inner lid 32 and the upper lid 33 are used after injecting and charging.
And must be heat-welded, and special equipment for heat-welding after charging is required.

Further, in a manufacturer in which an assembly factory and a finishing factory are installed independently, it is a fact that the finishing factory does not have the function of the assembly factory. Therefore, the finishing factory is installed in various places near the user. However, unless you invest capital investment, you can not finish at the finishing factory,
Therefore, quick delivery cannot be handled.

Further, even if the equipment is prepared, it takes a lot of time and effort to remove the charging splashes, so that the finishing workability in the assembling factory or the finishing factory becomes extremely poor.

The term "assembly plant" as used herein means a plant for assembling and finalizing unfilled batteries, and "finishing plant" means filling and charging unfilled batteries. If it has a top lid, it means a factory that attaches and finishes.

In FIG. 2, 41 is a battery case, 42 is a battery case lid, and 43 is a box-shaped liquid spout having an overflow-proof structure and an explosion-proof structure equipped with an explosion-proof filter. Reference numeral 45 is a liquid port formed on the battery case lid 42, and 46 is a liquid port fitting portion 46 formed on the liquid port plug 43.

In this battery, a battery case 41 and a battery case lid 42 are heat-welded, a liquid port fitting portion 46 is fitted in a liquid port 45 of the battery case lid 42, and a liquid port plug 43 is attached. Therefore, the liquid port plug 43 can be attached after the liquid is injected and charged, so that it is not necessary to provide a new facility in the assembly plant or the finishing plant unlike the above battery.

However, this battery has a structure in which the liquid port plug 43 is simply fitted and attached to the liquid port 45 of the battery case lid 42, so that the user can easily perform maintenance such as replacement fluid, and is unfamiliar with the maintenance. In the case of normal users, it is conceivable that accidents such as damage to clothes, etc. may be caused by splashes of the electrolytic solution.

[0011]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a battery structure that allows the battery finishing process to be performed easily. It is to provide an inexpensive lead-acid battery having a battery structure that cannot be maintained by the user.

[0012]

Therefore, a lead acid battery according to the present invention comprises a battery case lid having a liquid mouth portion and a liquid mouth plug having an explosion-proof structure, and is formed on the liquid mouth plug. The liquid mouth plug and the battery case lid are irreversibly attached by an engaging means and an engaging means formed on the battery case lid. The engagement means formed is irreversibly attached to the engagement means formed at the liquid mouth portion of the battery case lid. In claim 3, the three cells of the lead acid battery are collectively attached by the liquid mouth plug. It is characterized by being blocked. Further, in a fourth aspect of the present invention, the liquid port plug has an overflow resistant structure.

Further, in the present invention, the engaging means of the liquid mouth portion is formed at the lower end of the liquid mouth cylinder portion provided in the liquid mouth portion, and the engaging means of the liquid mouth plug is formed in the liquid mouth portion. It is characterized in that it is formed at the tip of the liquid port closing part provided, and in the sixth aspect, the liquid port cylinder part provided in the liquid port part and the liquid port blocking part formed in the liquid port plug are provided. It is characterized by being locked by rubbing.

In addition, according to a seventh aspect of the present invention, the engagement means formed on the liquid port plug has an undercut shape.

By adopting these structures, the lead storage battery according to the present invention solves the above problems.

[0016]

The lead acid battery according to the present invention comprises a battery case lid having a liquid mouth portion and a liquid mouth stopper having an explosion-proof structure, and the engaging means formed on the liquid mouth stopper and the battery case lid. Since the liquid mouth plug and the battery case lid are attached irreversibly by the formed engagement means, a new dedicated equipment for heat welding is charged when the liquid mouth plug is attached at the assembly factory or the finishing factory. There is no need to install it in the subsequent line. Further, the attachment work of the liquid port stopper can be easily performed by using, for example, a one-touch type.

Further, the battery has an engaging means formed on the liquid port plug and an engaging means formed on the battery case lid, or an engaging means formed on the liquid port plug and a liquid port portion of the battery case cover. Since the formed engaging means is attached irreversibly, once it is installed, the liquid stopper will not come off unless it is forcibly broken, and users who are unfamiliar with maintenance may wear clothes due to splashes of electrolyte etc. It does not cause an unforeseen situation such as damage.

The term "irreversibly attached" as used herein means that attachment is possible, but once attached, the liquid spout will not come off unless it is forcibly broken.
That is, it is "non-detachably attached".

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The lead acid battery according to the present invention will be described in detail below with reference to the drawings.

FIG. 3 is a perspective view showing an embodiment of the lead storage battery according to the present invention.

FIG. 4 is an enlarged perspective view of an end portion showing an embodiment of the liquid port closing portion.

In FIG. 3, 1 is a battery case, 2 is a battery case cover, 3
Is a liquid spout having an explosion-proof structure (here, an explosion-proof filter is attached) and an overflow-proof structure, which is a type that collectively closes 3 cells of a lead storage battery, and has 10 liquid spout main bodies. And 6 liquid port closing part. Reference numeral 4 is a terminal, 5 is a liquid mouth portion of the battery case lid, and 11 is a tubular liquid mouth tube portion formed so as to hang down from the circumferential edge of the liquid mouth portion 5 into the battery case. here,
The liquid mouth portion 5 means the liquid mouth and the liquid mouth cylinder portion 11, but without the liquid mouth cylinder portion 11, the liquid mouth portion 5 means the liquid mouth.

Numeral 13 is an engaging means formed in the liquid mouth portion, and here, it indicates the lower end of the liquid mouth cylinder portion 11 provided in the liquid mouth portion 5.

Reference numeral 12 denotes an engaging means formed on the liquid mouth plug 3, which is a fixing portion formed on the tip of the liquid mouth closing portion 6 of the liquid mouth plug 3. And this is for irreversibly attaching the liquid mouth plug 3 to the lower end 13 of the liquid mouth cylinder 11. Here, this engaging means, that is, the fixing portion 12, is formed in an undercut shape as shown in FIG.

When the liquid outlet plug 3 is attached to the assembled lead acid battery, the inner peripheral surface of the liquid outlet cylinder portion 11 of the liquid outlet portion 5 and the outer peripheral surface of the liquid outlet closing portion 6 of the liquid outlet plug 3 are engaged with each other. It is turned off and remains completely liquid tight and / or airtight. Then, the fixing portion 12 formed at the tip of the liquid port closing portion 6 is fitted and held by the lower end of the liquid port tube portion 11, that is, the engaging means 13 by its spring effect. As described above, the liquid mouth plug 3 is easily attached and is structured such that the fixing portion 12 of the liquid mouth closing portion 6 catches the engaging means 13 of the liquid mouth portion, that is, the lower end corner portion of the liquid mouth cylinder portion 11 and does not come off. It will never come off unless it is forcibly destroyed.

Therefore, if the liquid port plug is attached at the assembly factory or the finishing factory, the structure will not be maintained by the user.

In the present embodiment, the liquid spout plug 3 is irreversibly attached by the liquid spout tube portion 11. However, the liquid spout body 10 is provided with a fixing portion which is an engaging means, and the fixing portion is fitted. The engaging means having a structure capable of holding them together may be formed on the upper surface of the battery case lid 2 and attached irreversibly. At this time, the size, shape, engagement method, and the like of the engaging means are sufficient as long as they can be fitted and held and cannot be disengaged unless they are forcibly broken after being attached.

Further, although the liquid port cylinder portion 11 and the liquid port closing portion 6 are locked by rubbing to keep a complete liquid tightness and / or airtightness, the liquid mouth plug 3 and the inside of the battery case are Liquid tight
Also, as long as the liquid mouth plug has a structure that maintains airtightness, it is not necessary to provide the liquid mouth cylinder portion 5 and the closing portion 6.

Further, although the cross-sectional shapes of the liquid outlet tube portion 11 and the closing portion 6 are circular according to the shape of the liquid outlet, the shape of the liquid outlet is quadrangular or triangular and the shape is adapted to the shape. It may be one.

In addition, the size, shape, etc. of the liquid spout are not particularly limited to the above, and may be a type in which the liquid spigot is closed by 6 cells at a time, or one cell at a time. May be.

[0031]

The lead acid battery according to the present invention comprises a battery case lid having a liquid mouth portion and a liquid mouth plug having an explosion-proof structure,
The liquid mouth plug and the battery case lid are irreversibly attached by an engaging means formed on the liquid mouth plug and an engaging means formed on the battery case lid. It is characterized in that the stopper has an overflow resistant structure.

Further, the engagement means formed on the liquid mouth plug is irreversibly attached to the engagement means formed on the liquid mouth portion of the battery case lid, and the engagement of the liquid mouth portion is performed. The means is formed at the lower end of the liquid mouth cylinder provided at the liquid mouth, and the engaging means of the liquid mouth plug is formed at the tip of the liquid mouth closing portion provided at the liquid mouth. Characterize.

As a result, it is not necessary to provide a new facility for heat welding in the line after charging when installing the liquid port plug in the assembly plant or the finishing plant.

Also, the work of attaching the liquid port plug can be easily performed by making the engagement means formed on the liquid port plug one-touch type like an undercut shape.

Further, in the lead acid battery of the present invention, the battery case lid and the liquid mouth plug, or the liquid mouth portion and the liquid mouth plug of the battery case lid are irreversibly attached. ,
Unless it is forcibly broken, the liquid port plug will not come off, and users who are unfamiliar with maintenance may
It does not cause an unexpected situation such as damage to costumes.

In addition, when the liquid mouth plug is attached to the battery case lid, the liquid mouth cylinder portion provided in the liquid mouth portion and the liquid mouth closing portion formed in the liquid mouth stopper are locked by the fitting. So
Not only can the liquid tightness and / or airtightness be maintained, but it will be even more difficult to remove the liquid mouth plug.

Therefore, it is possible to provide the user with an inexpensive lead storage battery having an extremely high safety orientation, and the industrial value of the present invention is extremely large.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a conventional lead storage battery.

FIG. 2 is a perspective view showing an example of a conventional lead storage battery.

FIG. 3 is a perspective view showing an embodiment of a lead storage battery according to the present invention.

FIG. 4 is an enlarged end perspective view showing an embodiment of a liquid port closing portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Battery case 2 Battery case lid 3 Liquid port plug 4 Terminal 5 Liquid port part 6 Liquid port closing part 10 Liquid port plug main body 12 Fixing part 13 Engaging means formed in the liquid port part

Claims (7)

[Claims] 1. An engaging means formed on the battery case lid and an engaging means formed on the battery case lid, comprising a battery case lid having a liquid mouth part and a liquid mouth stopper having an explosion-proof structure. The lead acid battery is characterized in that the liquid port plug and the battery case lid are irreversibly attached by the above. 2. The lead according to claim 1, wherein the engaging means formed on the liquid port stopper is irreversibly attached to the engaging means formed on the liquid port portion of the battery case lid. Storage battery. 3. The lead acid battery according to claim 1, wherein three cells of the lead acid battery are collectively closed by the liquid port plug. 4. The lead acid battery according to claim 1, 2 or 3, wherein the liquid port plug has an overflow resistant structure. 5. A liquid port in which an engaging means of the liquid port portion is formed at a lower end of a liquid port tube portion provided in the liquid port portion, and an engaging means of the liquid port plug is provided in the liquid port portion. The lead storage battery according to claim 2, wherein the lead storage battery is formed at the tip of the closed portion. 6. The liquid mouth cylinder portion provided at the liquid mouth portion and the liquid mouth closing portion formed at the liquid mouth plug are locked by rubbing together. 3, 4 or 5
Lead acid battery described. 7. The engagement means formed on the liquid mouth plug has an undercut shape,
Lead acid battery of 3, 4, 5 or 6.