JPS5834701Y2 - Water replenishment device for storage batteries - Google Patents

Description

[Detailed description of the invention] Conventionally, multiple storage batteries installed and used in electric vehicles, etc. are refilled with water at once through a refilling water supply pipe as needed, and refilling is automatically stopped at each specified liquid level. Although a water replenishing device is known, it suffers from problems such as the water replenishment hole is directly affected by changes in pressure balance and the water is replenished above the specified liquid level, making it impossible to obtain a predetermined liquid level and lacking reliability.

The present invention eliminates such drawbacks and makes it possible to replenish water with a constant and stable pressure balance even if there are fluctuations in the water pressure in the replenishment supply pipe, and to always obtain a constant and required liquid level.
This provides a water refilling device for a storage battery that can be applied to bulk liquid injection. A casing 18 is provided with a liquid level regulating pipe 2 that extends vertically through the refilling water pipe 1 and reaches near the inner surface of the top wall 9 of the casing, and surrounds the upper end of the liquid level regulating pipe 2. The upper space inside is an air reservoir chamber 3, and the lower space inside the casing 18 that protrudes below the refill pipe 1 and surrounds the liquid level regulating pipe 2 is an annular refill chamber 6.
At the same time, a water replenishment hole 7 is provided in the water replenishment chamber 6.
The upper surface of the tank is closed off with an annular partition wall 5 provided with at least one inlet hole 4 that separates it from the water supply pipe 1.

Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

The drawing shows the water refilling device of the present invention configured in a water refilling frame that can be detachably attached to a hole in the lid of a storage battery.

In FIGS. 1 and 2, the water replenishment frame is cut out from the cylindrical casing, and a water replenishment pipe 1 is provided on the circumferential side of the frame at an intermediate height extending diametrically on both sides. A hose 8 connected to a supplementary water source at both ends, that is, the inflow pipe 1a and the outflow pipe 1b,
8.

At the center of the housing, there is provided a liquid level regulating pipe 2 that extends vertically perpendicular to the water replenishment pipe 1 and whose lower part protrudes downward from the housing. A space projecting above 1 is formed into a bubble chamber 3 whose upper surface is closed by the top wall 9 of the casing and encloses the upper end of the liquid level regulating pipe 2, and a space below the casing, that is, the supplementary water pipe. A space protruding below 1 is formed into an annular water replenishment chamber 6 by the bottom wall 10 of the casing, which surrounds the liquid level regulating pipe 2 and has one small water replenishment hole 7, and the peripheral side wall of the casing. The upper surface of the water replenishment chamber 6 has at least 1
The water replenishment chamber 6 is closed with an annular partition wall 5 provided with two inflow holes 4.
It was designed to be separated from the water replenishment pipe 1.

In the illustrated example, one inflow hole 4 of the partition wall 5 is provided on the inflow pipe 1a side and the outflow pipe 1b side of the water replenishment pipe 1, respectively.

The inflow hole 4 of the upper partition wall 5 and the water replenishment hole 7 of the bottom wall 10 are the second
As clearly shown in the figure, it is preferable that they are arranged at mutually shifted positions, rather than being lined up in a line in the vertical direction.

Reference numeral 11 indicates a thread provided on the outer periphery of the lower part of the housing, and the water replenishing device of the present invention uses the thread 11 to connect the water refilling thread 13 of the lid 12 of the battery container.
It is now possible to attach it to

Reference numeral 14 indicates a backing that maintains liquid tightness between these parts.

An annular buffer plate 16 is provided on the outer circumferential surface of the upper end of the liquid level regulating tube 11 with a small gap 15 between it and the inner circumferential wall of the upper air reservoir chamber 3 surrounding it, so that the inflowing replacement liquid can be kept at the liquid level. Inflow from the upper end of the regulation pipe 2 was prevented.

The inflow pipe 1a and the outflow pipe 1b of the supplementary water pipe 1 may be arranged at 90° with respect to each other.

The above-mentioned device is preformed into two components as shown in the exploded views of FIGS. 3 and 4, and these are assembled into one as shown in FIG.
It is preferable to assemble the device onto the body because it facilitates manufacturing.

That is, the housing plug member a is formed to have refilling pipe protrusions 1a and 1b on both sides, a liquid level regulating pipe 2 at the center, and a stepped portion 17 on the outer periphery of the upper surface of the annular refilling chamber 6, and the housing plug member a. The upper surface of the annular water replenishment chamber 6 is partitioned from the water replenishment pipe 1 by placing it on the annular step 17 with a brim-shaped partition wall 5 on the outer periphery of its lower end, and the top wall 9 on the upper end of the casing member The operation of the device of the present invention is as follows, where it is preferable that the cylindrical lid member, which closes the upper surface of the housing and is integrally welded to the housing at its outer periphery, be molded in advance from a synthetic resin.

The water passing through the water replenishment pipe 1 flows through the inflow hole 4 of the partition wall 5 into the water refill chamber 6.
A certain amount of water flows into the water replenishment chamber 6, and then enters the battery container through the water refill hole 7.

During this water replenishment work, even if the water pressure flowing inside the water replenishment pipe 1 fluctuates greatly, because the partition wall 5 exists, this fluctuating pressure will hardly affect the water replenishment chamber 6, and the water pressure inside the water replenishment chamber 6 will The new water replenishment liquid level is always kept almost constant, that is, water is refilled smoothly and stably into the battery at a constant water pressure.

By installing this device on the next battery connected with the hose 8, similar stable water replenishment work can be performed.

In this way, according to the present invention, the lower space surrounding the liquid level regulating pipe 2 of the cylindrical casing 18 is made into the annular water replenishment chamber 6 having the water replenishment hole 7, and this is provided on the upper surface of the water replenishment chamber 6. An annular bulkhead 3 provided with at least one inlet hole 4 separating it from the water pipe 1
Since the water replenishment pipe 1 is closed in the water refill chamber 6,
This has the effect of replenishing water into the battery with a stable water pressure that is separate from the fluctuating water pressure flowing through the battery.

[Brief explanation of drawings]

FIG. 1 is a cutaway side view of an example of the present invention, FIG. 2 is a cross-sectional view taken along the line A--A, and FIGS. 3 and 4 are exploded cross-sectional views of FIG. 1. 1... Water supply pipe, 1a... Inflow pipe, 1b
...Outflow pipe, 2...Liquid level regulation pipe, 3.
... Air reservoir chamber, 4 ... Inflow hole, 5 ...
・・・Annular bulkhead, 6...Annular water replenishment chamber, 7...
... Water supply hole, 10 ... Bottom wall, 18 ...
Cylindrical housing.

Claims (1)

[Scope of utility model registration request] The inflow pipe 1a and the outflow pipe 1b of the water replenishment pipe 1 are provided in the center of a cylindrical casing 18 protruding from the middle of the circumferential wall, and extend vertically through the bottom wall 10 and are perpendicular to the water replenishment pipe 1. Housing top wall 9
A liquid level regulating pipe 2 reaching near the inner surface is provided, and the upper space in the casing 18 surrounding the upper end of the liquid level regulating pipe 2 is defined as an air reservoir chamber 3.
The lower space inside the casing 18 that protrudes below the water replenishment pipe 1 and surrounds the liquid level regulating surface 2 is an annular water refill chamber 6, and a water refill hole 7 is provided in the water refill chamber 6. A water replenishing device for a storage battery whose upper surface is closed off with an annular partition wall 5 provided with at least one inflow hole 4 that partitions it from a water replenishment pipe 1.