JP2006210257A - Storage battery - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a storage battery capable of leading a gas exhausted from an exhaust hole 5c to the outside by mounting, to a vent plug 5, an exhaust tube-mounting adapter 5e communicating with the exhaust hole 5c and by mounting an exhaust tube 7 to the exhaust tube-mounting adapter 5e. <P>SOLUTION: This storage battery such as a lead-acid battery equipped with the vent plugs 5 each having the exhaust hole 5c is so structured that the exhaust tube-mounting adapter 5e communicating with the exhaust hole 5c is mounted to each vent plug 5; and the exhaust tube 7 is mounted to the exhaust tube-mounting adapter 5e. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a storage battery including a liquid spout having an exhaust hole.

  FIG. 4 shows a configuration example of a conventional open-type lead storage battery for automobiles. In this lead storage battery, the battery container is composed of a resin battery case 1 and a cover plate 2. The battery case 1 is a rectangular container whose interior is divided into six cells by a partition, and each cell contains a power generation element and is filled with an electrolyte. The cover plate 2 closes and seals the upper end opening of the battery case 1, and also seals between the cells inside. Further, the lid plate 2 is provided with a positive electrode terminal 3 and a negative electrode terminal 4, and is connected to six power generation elements connected in series in the battery case 1.

  In the lid plate 2, six liquid injection ports 2 a communicating with each cell of the battery case 1 are opened. These liquid injection ports 2a are used not only for injecting the electrolyte into each cell of the battery case 1 during the production of the lead storage battery, but also for replenishing the electrolyte during use. Further, these liquid injection ports 2a are respectively closed by screwing the liquid port plugs 5 therethrough. The liquid spigot 5 is a resin part, and a cylindrical splash-proof portion 5b protruding downward from the disc-shaped plug main body 5a is inserted into the liquid injection spout 2a, and a screw on the top thereof is screwed. It comes to wear by. Further, when the liquid spigot 5 is mounted, the packing 6 is fitted under the plug main body 5a to prevent loosening by screwing and to securely seal the liquid injection port 2a. ing.

  However, since the open-type lead-acid battery must discharge the gas (hydrogen gas or oxygen gas) generated by the electrolysis of water to the outside during charging, the liquid plug 5 is provided on the upper surface of the plug body 5a. An open exhaust hole 5c is formed. The exhaust hole 5c is a small hole that communicates from the opening on the upper surface of the plug body 5a into the cylinder of the splash-proof portion 5b, and can discharge the gas generated in the cell to the outside through the splash-proof portion 5b. . Moreover, the splash-proof part 5b arranges a suitable splash-proof plate inside, thereby making the ventilation path from the inside of the cell to the exhaust hole 5c of the liquid spout 5 into a labyrinth and allowing the gas generated in the cell to pass therethrough. The splash of the electrolyte is not easily leaked to the outside through the exhaust hole 5c. The liquid spout 5 shown in FIG. 4 has a cross-shaped tool groove 5d formed on the top surface of the plug main body 5a, and is screwed into the liquid spout 2a by inserting and rotating the tool here. Or can be removed. And the exhaust hole 5c is opening in the part in which this tool groove | channel 5d is not formed in the upper surface of the plug main body 5a.

  However, lead-acid batteries for automobiles are not only installed in places that communicate with the outside of the vehicle, such as engine rooms, but may also be installed in cabins (vehicle compartments). However, the conventional lead-acid battery has a problem in that it cannot be installed in the same cabin as the passenger because gas is discharged from the exhaust hole 5c of the liquid spout 5. For this reason, in the past, when a lead storage battery was installed in a cabin, a sealed type was used. However, this sealed type lead storage battery is more expensive and has a higher weight than an open type. Since the energy density is small and water cannot be refilled and the probability of an internal short circuit occurring in a fully discharged state is increased, there is a problem that the battery life is shortened.

In addition, even in the conventional lead-acid battery, there is a battery in which the opening of the exhaust hole 5c of the liquid spout 5 protrudes from the top surface of the plug main body 5a (see, for example, Patent Document 1). However, this is for preventing rainwater or the like accumulated on the upper surface of the plug body 5a of the liquid plug 5 from entering the cell through the exhaust hole 5c, and the gas discharged from the exhaust hole 5c. Did not lead to the outside.
JP-A-8-329919

  The present invention intends to provide a storage battery in which a gas discharged from the exhaust hole can be led to the outside by providing an exhaust tube mounting adapter communicating with the exhaust hole in the liquid plug.

  The storage battery according to claim 1 is characterized in that in the storage battery provided with a liquid port plug having an exhaust hole, an adapter for mounting an exhaust tube communicating with the exhaust hole is provided in the liquid port plug.

  The storage battery according to claim 2 is provided with a liquid port plug having an exhaust hole, wherein the liquid port plug is provided with an exhaust tube mounting adapter that communicates with the exhaust hole, and the exhaust tube mounting adapter is mounted with the exhaust tube. It is characterized by that.

  According to the storage battery of the first aspect, since the exhaust tube mounting adapter is provided at the discharge port portion of the exhaust port of the liquid port plug, one end portion of the exhaust tube is mounted on the exhaust tube mounting adapter, If the other end is pulled out, the gas generated in the cell can be led out to the outside away from the place where the storage battery is installed and discharged. Moreover, if the exhaust tube is not attached to the exhaust tube attachment adapter, it can be used in the same manner as a conventional storage battery, so that it can be a highly versatile product.

  According to the storage battery of claim 2, one end of the exhaust tube is mounted on the exhaust tube mounting adapter provided at the discharge port of the exhaust hole of the liquid port plug, so that the other end of the exhaust tube can be pulled out. Thus, the gas generated in the cell can be led out to the outside away from the storage battery installation location and discharged.

  In addition, it is preferable that the exhaust tube mounting adapter includes a locking portion that locks out the exhaust tube when the exhaust tube mounting portion is completely fitted. In this way, by completely fitting the exhaust tube mounting portion into the exhaust tube mounting adapter, the locking portion locks this mounting portion and prevents the exhaust tube from being pulled out. Can be a thing.

  In addition, when the storage battery is provided with a plurality of liquid port plugs, it is preferable to perform collective exhaust by integrating the exhaust tubes respectively attached to the exhaust tube mounting adapters of these liquid port plugs. In this way, one end of the exhaust tube is attached to the exhaust tube mounting adapter provided at the exhaust port of the plurality of liquid port plugs, and these exhaust tubes are integrated to perform collective exhaust. Therefore, it is not necessary to pull out the other ends of the plurality of exhaust tubes to the outside, and only one integrated tube needs to be pulled out.

  Hereinafter, the best embodiment of the present invention will be described with reference to FIGS. In these drawings, the same reference numerals are given to constituent members having the same functions as those of the conventional example shown in FIG.

  In the present embodiment, an open-type lead storage battery similar to the conventional example shown in FIG. 4 will be described. The lead storage battery of the present embodiment has the same configuration as that shown in FIG. Further, as shown in FIG. 1, the liquid spout 5 is also a resin part having a cylindrical splash-proof portion 5b protruding below the disc-shaped plug main body 5a, and below the plug main body 5a. The configuration of fitting the packing 6 by inserting the gasket 6 and inserting the splash-proof portion 5b into the liquid injection port 2a and screwing the screw formed on the outer periphery of the upper portion of the splash-proof portion 5b is the same as the conventional example. .

  As with the conventional example, the liquid spigot 5 has an exhaust hole 5c penetrating vertically through the plug main body 5a and leading to the inside of the splash-proof portion 5b. However, the exhaust hole 5c is configured to open to the upper end surface of the exhaust tube mounting adapter 5e that protrudes from the upper surface of the plug body 5a. The exhaust tube mounting adapter 5e is an adapter for mounting the mounting portion 7a of the exhaust tube 7 shown in FIG. 3. In FIG. 1, the top surface of the plug body 5a is cylindrical when the liquid port plug 5 is molded with resin. The thing of the structure which made it protrude and penetrated the discharge port part of the exhaust hole 5c in the center part is shown.

  The exhaust tube 7 shown in FIG. 3 is a tube that is flexible to some extent, and the gas discharged from the exhaust hole 5c is guided to the other end side by mounting the mounting portion 7a on one end side to the exhaust tube mounting adapter 5e. Can do. As shown by an arrow in FIG. 3, the mounting portion 7a is fitted to the exhaust tube mounting adapter 5e from above and tightened with a screw or the like so as to be fixed to the exhaust tube mounting adapter 5e. It is. In addition, the exhaust tube 7 does not necessarily need to be flexible, For example, a metal pipe can also be used. However, when the flexible exhaust tube 7 is used, when the liquid spout 5 needs to be removed for replenishment or the like, the mounting portion 7a is removed from the exhaust tube mounting adapter 5e in advance or mounted again. It has the advantage that the work at the time becomes easy. Further, when the exhaust tube 7 is made of a material having sufficient elasticity, the cut end on one end side is used as it is as the mounting portion 7a, and the exhaust tube 7 is attached to the cylindrical projection of the exhaust tube mounting adapter 5e with an interference fit. It can also be fixed by a tightening force due to elasticity when fitted.

  The structure of the liquid plug 5 is arbitrary as long as the liquid plug 5 is attached to the liquid injection port 2a and sealed, and penetrates the exhaust hole 5c. Therefore, the liquid spout 5 may be attached to the liquid injection port 2a by a method other than screwing. Further, the sealing of the liquid injection port 2a by the packing 6 can be replaced with the sealing by another method. Furthermore, the splash-proof portion 5b can be substituted with another structure that prevents the electrolyte from leaking to the outside.

  Further, instead of forming the tool groove 5d in the plug body 5a of the liquid spout 5 shown in FIG. 1, for example, as shown in FIG. 2, the handle portion 5f is directed in four directions around the disc-shaped plug body 5a. It is also possible to use a liquid stopper 5 having a structure that protrudes and is screwed into the liquid injection port 2a by turning these handle portions 5f with a finger. In this case, since the exhaust hole 5c does not need to avoid the tool groove 5d, the central portion of the plug body 5a can be vertically penetrated, and the exhaust tube mounting adapter 5e is provided on the upper surface of the plug body 5a. It can project toward the upper direction from the center. Furthermore, in the liquid spigot 5 shown in FIG. 2, the taper part 5g is formed in the upper end part of the cylindrical protrusion of the exhaust tube mounting adapter 5e. For this reason, when the mounting portion 7a of the exhaust tube 7 is externally fitted to the exhaust tube mounting adapter 5e from above, the outer fitting portion (not shown) is first expanded by elastic deformation by the taper portion 5g, and the mounting portion 7a reaches the lower end. When fully fitted, the elastic deformation of the outer fitting portion is restored, so that the outer fitting portion is locked to the lower end of the tapered portion 5g and cannot be returned upward. Therefore, in this case, when the mounting portion 7a of the exhaust tube 7 is completely fitted into the exhaust tube mounting adapter 5e, the tapered portion 5g becomes a locking portion to lock the mounting portion 7a and prevent it from coming out. Therefore, the exhaust tube 7 can be securely attached. Further, when the mounting portion 7a is completely fitted into the exhaust tube mounting adapter 5e, the elastic deformation of the outer fitting portion is restored and the locking is performed. Thus, the operator can surely confirm whether or not the operation has been performed, and the work can be prevented from being incomplete. Furthermore, if the space between the mounting portion 7a and the exhaust tube mounting adapter 5e can be rotated, only the liquid spout 5 can be rotated using the handle portion 5f while the exhaust tube 7 is mounted. The liquid spigot 5 can be removed from or attached to the liquid injection port 2a without removing the plug.

  When the mounting portion 7a on one end side of the exhaust tube 7 is mounted on the exhaust tube mounting adapter 5e of the liquid spigot 5 as described above, the other end side of the exhaust tube 7 is pulled out to an appropriate location, thereby lead acid battery. The gas generated in the cell can be led out to the outside away from the installation location of the lead storage battery and discharged. For example, when installing a lead storage battery in the cabin of a passenger car, if the other end opening of the exhaust tube 7 is placed outside the cabin, the gas generated in the lead storage battery cell leaks into the cabin on which the passenger rides. Therefore, it is no longer necessary to use a sealed lead-acid battery that is more expensive and has a lower weight energy density than the open type.

  Here, since the lead storage battery of the present embodiment has a 6-cell configuration, the exhaust tubes 7 are attached to the exhaust tube attachment adapters 5e of the six liquid spouts 5, respectively. Pulling out the other end side of the exhaust tube 7 to the outside not only makes the operation cumbersome but also complicates the laying state of the exhaust tube 7. Therefore, as shown in FIG. 3, these six exhaust tubes 7 are preferably integrated by an integrated member 8 in the vicinity of the lead-acid battery, and exhausted collectively by one integrated exhaust tube 9. The integrated member 8 includes a port that connects the other ends of the six exhaust tubes 7 and a port that connects one end of the single integrated exhaust tube 9, and is sent through these six exhaust tubes 7. This is a pipe connector provided inside with a pipe line that is configured to send the gas that has come to one integrated exhaust tube 9. If the integrated exhaust tube 9 can be collectively exhausted in this way, it is only necessary to pull out the other end of the single integrated exhaust tube 9 to the outside, and the work is easy and the installed state is also simple. Can do.

  In the above-described embodiment, the exhaust tube mounting adapter 5e has a shape protruding in a cylindrical shape from the upper surface of the plug body 5a as shown in FIG. 1, or a taper at the upper portion of this cylindrical shape as shown in FIG. Although the shape of the portion 5g is shown, it is attached by fitting and fixing the attachment portion 7a of the exhaust tube 7, and is formed at the discharge port portion of the exhaust hole 5c of the liquid port plug 5. Any structure may be used as long as it is made. For example, as long as the shape protrudes from the liquid spout 5, a prismatic shape may be used, or a groove, a flange portion, or the like may be formed in the middle of the columnar shape or the prismatic shape. In particular, if such a groove, a flange portion, or the like is formed, a locking portion that locks an elastically deformable member such as an outer fitting portion provided in the mounting portion 7a of the exhaust tube 7 may be used. The exhaust tube 7 can be securely attached. In addition, a member that is elastically deformed may be provided on the exhaust tube mounting adapter 5e side so as to be locked to a locking portion formed on the mounting portion 7a of the exhaust tube 7.

  Further, the exhaust tube mounting adapter 5e can be provided not only in a shape protruding from the liquid port plug 5, but also in a recess formed in the liquid port plug 5. In this case, the mounting portion 7a of the exhaust tube 7 is inserted into and fixed to the concave portion of the exhaust tube mounting adapter 5e. Then, a member that is elastically deformed is provided in the mounting portion 7a of the exhaust tube 7, and a locking portion is formed and locked inside the concave portion of the exhaust tube mounting adapter 5e, or the concave portion of the exhaust tube mounting adapter 5e. A member that is elastically deformed may be provided on the inner side, and a locking portion may be formed on the mounting portion 7a of the exhaust tube 7 to be locked. If the exhaust tube mounting adapter 5e is formed in the concave portion in this way, it is not necessary to provide a protrusion on the liquid port plug 5. Therefore, the lead storage battery is used without mounting the exhaust tube 7 on the exhaust tube mounting adapter 5e. Even in this case, it is possible to eliminate a sense of discomfort with the conventional lead storage battery.

  Further, when a member that is elastically deformed is provided in the mounting portion 7a of the exhaust tube 7 or the exhaust tube mounting adapter 5e, the member is forcibly elastically deformed by an operation to release the locking by the locking portion. A release member can also be provided. By operating such an unlocking member, the locking at the locking portion is released, so that the mounting portion 7a of the exhaust tube 7 can be easily detached from the exhaust tube mounting adapter 5e.

  Moreover, in the said embodiment, although the lead storage battery of 6 cell structure was demonstrated, this cell structure is arbitrary and can implement similarly about the lead storage battery of only 1 cell. Furthermore, the lead storage battery is also of an open type, provided that it is provided with a liquid plug having an exhaust hole, the configuration is arbitrary, and the configuration of the battery container includes the resin battery case 1 and the cover plate 2. It is not limited to what was used.

  Moreover, although the lead storage battery was demonstrated in the said embodiment, if it was provided with the liquid stopper which has an exhaust hole, it can implement similarly with another storage battery.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a configuration of a liquid spout provided with an exhaust tube mounting adapter according to an embodiment of the present invention. FIG. 5 is a perspective view showing another embodiment of the present invention and showing another configuration of a liquid spout provided with an exhaust tube mounting adapter. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a lead storage battery in which an exhaust tube is mounted on an exhaust tube mounting adapter according to an embodiment of the present invention. It is a perspective view which shows a prior art example and shows the structure of a lead acid battery.

Explanation of symbols

2a Injection port 5 Liquid port plug 5a Plug body 5c Exhaust hole 5e Exhaust tube mounting adapter 5g Tapered portion 7 Exhaust tube 7a Mounting portion 8 Integrated member 9 Integrated exhaust tube

Claims (2)

In a storage battery equipped with a liquid spout having an exhaust hole,
A storage battery, characterized in that an exhaust tube mounting adapter communicating with the exhaust hole is provided in the liquid plug. In a storage battery equipped with a liquid spout having an exhaust hole,
An exhaust tube mounting adapter that communicates with the exhaust hole is provided in the liquid plug, and the exhaust tube is mounted on the exhaust tube mounting adapter.

Images