JPH0441572Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a storage battery structure for injecting electrolyte or replenisher into the storage battery.

Conventional technology When injecting electrolyte or replenisher into a storage battery,
The method of providing a protrusion on the liquid injection port of a storage battery and breaking the spout of the electrolyte container or replenisher container with the protrusion to inject the liquid has the advantage that it is easy to operate and does not require tools such as scissors or knives. Therefore, various shapes have been proposed in the past.

An example of such a conventional structure is shown in FIG. In this example, two cylindrical protrusions 8a, a long and a short one with their tips cut off diagonally, are placed on the bottom of the liquid injection port provided on the lid of the storage battery.
8b is provided, and the spout 7 of the electrolytic solution container or replenisher container 6 is pressed against this part to open the spout and pour the liquid into the storage battery from the longer cylindrical projection 8a. The air is discharged, and the liquid flows out from the shorter cylindrical projection 8b. However,
Torn resin pieces 9 depending on how the spout of the container was torn
may close the hole of one cylindrical protrusion, or the liquid inlet may
Since there are only a few points, there are drawbacks such as slow injection speed.

As described above, in the conventionally proposed containers, the opening part of the container is small, making it difficult to pour liquid quickly, and in order to eliminate such inconveniences, the shape of the protrusion has to be large and complicated. It did not drip onto small storage batteries.

Means for Solving the Problems The present invention provides a storage battery that allows liquid injection to be performed quickly and reliably, and can also be applied to miniaturization. A cylindrical protrusion for opening and venting the electrolyte container, which is provided on the storage battery lid, and a cylindrical protrusion for opening the electrolyte container and for ventilation, which is provided in the recess for liquid injection without protruding beyond the top surface of the storage battery lid, and that the inside A cylindrical protrusion having a large diameter portion, a cylindrical protrusion that is configured to have a space communicating between the inside and the outside of the battery, and a protrusion tip formed at an acute angle so as to easily break the electrolyte container sealing member; A storage battery comprising: a plurality of notches for liquid injection formed in the large diameter portion of the cylindrical protrusion so as to communicate between the inside and outside of the storage battery. It is characterized by

Embodiment An embodiment of the present invention will be described with reference to FIGS. 1 to 3. Reference numeral 1 denotes a storage battery lid; 2 a recess for liquid injection provided in the lid; a cylindrical protrusion 3 with an inclined tip is formed in the center of the recess for liquid injection; A large diameter portion 4 having a larger outer diameter and lower height than the projection is provided on the outer periphery of the base of the projection. Around the large diameter portion 4, three to four V-shaped or U-shaped notches 5 are provided that communicate with the inside of the battery.

Fig. 3 shows a state in which the spout 7 of the electrolyte or replenisher container 6 is pressed against the liquid injection recess 2 of a storage battery having such a structure to open it and pour liquid into it. Air inside the storage battery is discharged from the protrusion 3, and a notch 5 formed in the large diameter portion 4 of the base of the cylindrical protrusion
The liquid flows into the storage battery. The electrolytic solution or replenisher container 6 is molded from a synthetic resin such as polyethylene, and after being filled with the electrolytic solution or replenisher, the spout 6 is sealed with a polyethylene film or the like.

According to the above embodiment, all of the plurality of notches 5 provided around the large diameter portion 4 function as pouring ports.
Injection of liquid is quick, and there is no risk of it being blocked by resin pieces from the container.

FIG. 5 shows another embodiment, in which the cut 5 provided in the large diameter portion 8 has a spiral shape. By doing so, the opening of the container is enlarged by the spiral cut, so that the liquid can be filled more quickly and reliably.

Effects of the invention As described above, although the invention has a simple structure, it provides a storage battery that can reliably perform liquid injection and replenishment simply by pressing the container, and its effects are significant.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway perspective view showing an embodiment of the storage battery of the present invention, Fig. 2 is a partially cutaway perspective view showing the liquid injection port of the storage battery, and Fig. 3 is a liquid injection port of the storage battery of the invention. FIG. 4 is a sectional view showing a conventional battery of this type in a state in which liquid is injected, and FIG. 5 is a partially cutaway perspective view showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Lid, 2... Liquid injection recess, 3... Cylindrical projection, 4... Large diameter part, 5... Notch, 6... Container,
7...Pour spout.

Claims (1)

[Scope of Claim for Utility Model Registration] A liquid injection recess 2 provided on the storage battery lid 1; and a cylindrical protrusion 3 for opening and ventilation of the electrolyte container in the liquid injection recess 2. The protrusion protrudes from the upper surface of the storage battery lid 1 without protruding, and the internal space is configured to communicate between the inside of the storage battery and the outside, and the tip of the protrusion is formed at an acute angle so that the electrolyte container sealing member can be easily broken. A large diameter portion 4 of the cylindrical projection 3 formed on the outer periphery of the base of the cylindrical projection 3; and a plurality of incisions 5 for liquid injection, which are formed on the outer periphery of the base of the cylindrical projection 3. A storage battery comprising: a part 4 formed to communicate between the inside of the storage battery and the outside;