JPS5919341Y2 - storage battery - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a buoy for indicating the electrolyte level which is inserted into a liquid port plug attached to a storage battery.

The electrolyte in conventional storage batteries decreases with the progress of charging and discharging, but because it is necessary to replenish the electrolyte according to the amount of decrease, in storage batteries using an opaque container 1, the electrolyte is used to observe the electrolyte level. The electrolyte level indicating buoy 4 is inserted into the liquid spout plug 3 screwed onto the liquid filling port of the tank lid 2 to float on the electrolyte level, and the liquid level indicating rod 5 of the electrolyte level indicating buoy 4 is inserted. The tip was observed from the outside of the liquid port stopper 3, and the height of the float displayed on the liquid level indicator rod 5 was identified to determine the height of the liquid level.

By the way, the electrolyte level indicating buoy 4 is composed of a floating bladder body 6 and a liquid level indicating rod 5. The floating bladder body 6 is relatively hollow because it is necessary to reduce the apparent specific gravity and increase the buoyancy. The liquid level indicator rod 5 must have a large volume, and the liquid level indicator rod 5 must have a small volume. 5 and a bottomless structure float body were molded into one body, and then a bottom plate was fixed to the bottom of the bottomless structure float body by adhesive etc. to form a hollow body. When the electrolyte seeps into the inside of the float bladder 6 from the fixed location and accumulates at the bottom, the electrolyte level indicating buoy 4
This has the disadvantage that the specific gravity of the electrolyte increases and the buoyancy decreases, making it difficult to accurately indicate the electrolyte level.

In addition, because the electrolyte level indicating buoy 4 is inserted into the liquid port plug 3 and attached to the battery container lid 2, the electrolyte level indicating buoy 4 is
There is a limit to the volume of the floating bladder body 6 that can be suspended, and there is a limit to how much buoyancy can be obtained.

In addition, 7 is a fall prevention tsuba, 8 is a buoy insertion tube, 9 is a canopy, 10
11 is a pole plate group, 11 is a pole column, and 12 is a splash-proof plate.

In view of the above points, the present invention eliminates the need for a float body attached to the electrolyte level indicating buoy, and instead inserts only the liquid level indicator rod into the liquid port plug, and connects the lower tip of the liquid level indicator rod to the storage battery. Float in contact with the splash-proof plate surface that floats on the electrolyte surface on the electrode plate group,
The electrolyte level position can be determined by moving the liquid level indicator rod up and down in conjunction with the splash-proof plate that floats up and down depending on the height of the electrolyte level, and observing the floating height of the liquid level indicator rod through the top of the liquid spout. This allows you to check.

1 is a battery case, 2 is a battery case lid, 3 is a liquid spout screwed onto the battery case lid 2, and a buoy insertion tube 8 is inserted through the center of the hollow body.

9 is a transparent canopy which is pivotally attached to one end of the upper edge of the liquid spout plug 3 and can be opened and closed vertically; 13 is an electrolyte level indicating buoy inserted into the buoy insertion tube 8 and floating above the electrolyte level; The electrolyte level indicating buoy 4 in the conventional lid battery shown in FIG. The electrolyte level indicator buoy 13 inserted into the lid battery of the invention is simply a drop prevention part 15 provided at the upper tip of the liquid level indicator 14, as shown in FIG. First, the lower point 17 of the liquid level indicator 14 is brought into contact with and floated on the upper surface of the splash proof body 16 floating on the upper electrolyte surface of the electrode plate group 1.

The electrolyte level indicator buoy 3 having the structure as described above is attached to the liquid port plug 3.
When the electrode plate group 10 is inserted into the electrode plate group 10, a splash-proof layer is suspended on the electrolyte surface to prevent damage to the upper surface of the electrode plate group 10 and to suppress gas bubbles rising from the electrolyte inside the electrode plate group 10 during charging and discharging. The apparent specific gravity of the body 16 is made smaller than the specific gravity of the electrolyte,
It should have a large buoyancy, preferably a hollow flat plate, and float on the upper surface of the electrode plate group 10 so as not to be hindered from floating, so that when it rises to the specified maximum liquid level, the The upper tip of the liquid level indicator 14 held on the electrolyte level indicator buoy 13 inserted into the buoy insertion tube 8 which floats in contact with the droplet 16 peeks through the upper end of the buoy insertion tube 8 and projects from the top of the liquid spout plug 3. When the splash prevention body 16 is floating at the specified minimum liquid level position, the upper tip of the liquid level indicator 14, that is, the fall prevention part 15 is naturally attached to the upper end surface of the buoy insertion tube 8. The liquid level indicator 14 cannot be transparently observed from the upper part of the liquid port plug 3, so that the sedimentation of the liquid level indicator 14 can be identified and a drop in the liquid level can be detected.

In addition, since the lower tip 17 of the liquid level indicator 14 and the splash-proof body 16 are not fixed, even if the position or inclination of the splash-proof body 16 changes with the electrolyte level when the lid battery is swung. The liquid level indicator 14 can smoothly move up and down within the buoy insertion tube 8 without increasing friction, and can easily be moved by simply attaching the liquid port plug 3 to a storage battery equipped with a splash-proof body 16 inside. You can specify the surface.

As mentioned above, the electrolyte level indicator buoy used in the storage battery of the present invention is a liquid level indicator whose lower tip is suspended on the surface of a splash-proof body that floats up and down as the electrolyte level fluctuates. The electrolyte level position can be determined and confirmed by observing the height of the float by vertical movement, and since the splash-proof body also serves as a swim bladder, it is similar to a swim bladder with high buoyancy. The structure of the liquid level indicator buoy is simple because it does not have a floating bladder, and it is also easy to manufacture and easy to insert into the liquid port plug, reducing costs and man-hours. Furthermore, due to the floating action of the splash-proof body with greater buoyancy, accurate operation of the liquid level indicator can be obtained, and the position of the electrolyte liquid level can be known with certainty, and the liquid level indicator is smooth even when the electrolyte liquid level fluctuates. An electrolyte level indicating buoy with high reliability such as the ability to operate is extremely convenient in terms of battery maintenance, and has extremely great practical value.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the main parts of a conventional storage battery equipped with a buoy for indicating the electrolyte level, Figure 2 is a cross-sectional view of the main parts of the storage battery of the present invention, and Figure 3 is a buoy for indicating the electrolyte level used in the storage battery of the present invention. FIG. 3 is a liquid spout plug, 8 is a buoy insertion tube, 13 is an electrolyte level indicator buoy, 14 is a liquid level indicator, 16 is a splash-proof body, and 17 is a lower tip.

Claims (1)

[Scope of utility model registration request] The lower point of the liquid level indicator on the electrolyte level indicator buoy inserted into the buoy insertion tube inserted into the liquid port plug is brought into contact with and floated on the splash-proof body surface floating on the electrolyte liquid level, and the electrolysis is started. A storage battery comprising an electrolyte level indicator buoy that identifies the electrolyte level by means of a splash proof body that floats up and down as the liquid level changes and a level indicator that moves up and down in conjunction with the liquid level.