JPH049738Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to the improvement of liquid port plugs used in automotive storage batteries, etc., and aims to improve splash-proof performance and electrolyte escape prevention performance. .

Conventional technology and its problems Conventionally, liquid spout plugs for storage batteries have an internal labyrinth structure created by combining the liquid spout body and a splash-proof body to maintain splash-proof performance and electrolyte escape prevention performance. . However, when a complex labyrinth structure is provided inside the narrow liquid port plug body, it is not easy for the electrolyte to penetrate into the liquid port plug, but once it has penetrated, it becomes difficult to circulate back into the battery and the liquid port plug It often escapes to the outside through the exhaust hole. On the other hand, if the interior of the liquid outlet plug body is made to have a simple structure, circulation into the storage battery becomes easier, but there is a drawback that droplets directly escape from the outlet of the liquid outlet to the outside of the storage battery. .

Means for Solving the Problems The present invention eliminates the above-mentioned drawbacks and provides a liquid spout plug for storage batteries with excellent splash-proof and escape performance, which consists of a liquid spout body 1 and a splash-proof body 3. , The liquid spout body 1 includes a liquid spout lid 40 and an open end 30.
The splash-proof tube 2 consists of a cylindrical body with
Central partition plate 19 consisting of a partition wall dividing into two in the A′ direction
and is located near the open end 30 of the splash-proof tube 2 of the central partition plate 19, and is located near the open end 30 of the splash-proof tube 2 of the central partition plate 19, and is connected to the center partition plate and the like from one side 20 of the central partition plate with reference to a plane perpendicular to the central axis A-A' of the splash-proof tube 2. A first inclined plate 9 consisting of a partition wall inclined 30 to 40 degrees toward one side 21, and a central partition plate and the other first inclined plate 9 on the other side 21.
The partition wall is located closer to the liquid spout lid part 40 than the first inclined plate 9 and is inclined by 30 to 40 degrees in the opposite direction to the first inclined plate 9 with respect to a plane perpendicular to the central axis A-A' of the splash-proof cylinder 2. A second inclined plate 10 in which a first hollow chamber 13 is formed by the splash-proof cylinder 2, a central partition plate 19, and a first inclined plate 9;
A third inclined plate 11 is located on the 0 side and further closer to the liquid port lid part 40 than the second inclined plate 10, and is composed of a partition wall inclined at 30 to 40 degrees in the same direction as the first inclined plate 9. The second hollow chamber 14 is formed by the splash-proof tube 2, the central partition plate 19, and the first inclined plate 9, and the third inclined plate 1 is located on one side 21 of the central partition plate and the other side.
A fourth inclined plate 12 is located further toward the liquid spout lid 40 side than the fourth inclined plate 12 and is formed of a partition wall inclined at 30 to 40 degrees in the same direction as the second inclined plate 10, and is located at the center of the splash-proof cylinder 2. A third hollow chamber 15 is formed by the partition plate 19 and the second inclined plate, and a fourth hollow chamber 16 is formed by the splash-proof tube 2, the central partition plate 19 and the third inclined plate 11; A first slit 6 provided in the attachment portion of the first inclined plate 9 of the central partition plate 19 to communicate the hollow chamber 13 and the second hollow chamber 14; A second slit 7 provided in the second inclined plate 10 mounting portion of the central partition plate 19 to communicate with the chamber 15; A third slit 8 provided in the attachment portion of the third inclined plate 11 of the plate 19; a first splash-proof plate 17 protruding from the central partition plate 19 into the second hollow chamber 14; a second splash-proof plate 18 protruding into the third hollow chamber 15; and a third splash-proof plate 22 protruding from the fourth inclined plate 12 into the third hollow chamber 15; A splash-proof tube slit 5 consisting of an opening is provided in the splash-proof tube 2 in the portion forming the hollow chamber 13, and the splash-proof tube 2 in the portion forming the third hollow chamber 15 is a third splash-proof tube. The above-mentioned problem is solved by providing a liquid outlet plug for a storage battery, which is provided with an exhaust hole 4 made of a small hole at a position facing the plate.

In the present invention, in order to specify the mounting positional relationship of the inclined plates 9, 10, 11, and 12 provided on the central partition plate 19, one side of the central partition plate 19 is referred to as the central partition plate single side 20, and the other side is referred to as the central partition plate single side 20. One side is referred to as the other side 21 of the central partition plate.

The electrolytic solution that has entered the first hollow chamber 13 from the splash-proof tube slit 5 is transferred to the first inclined plate 9 and the central partition plate 1.
9 and flows down the slope of the first inclined plate 9 and into the storage battery through the splash-proof tube slit 5. A part of the electrolyte that has passed through the first slit 6 and entered the second hollow chamber is absorbed by the first splash-proof plate 17 and the central partition plate 1.
9 and travels down the slope of the first inclined plate 9.
It flows back into the storage battery through the slit 6, the first hollow chamber 13, and the splash-proof tube slit 5. The electrolytic solution that has passed through the second slit is also prevented from further intrusion by the same effect, and leakage of the electrolytic solution to the outside in the second to fourth hollow chambers can be completely prevented.

Even if electrolyte enters from the exhaust port 4 due to vibration of the lead-acid battery, the third splash-proof plate 2 facing the exhaust port 4
2 and falls, so it does not enter the fourth hollow chamber 16. This electrolyte passes through the third hollow chamber 15 → second slit 7 → second hollow chamber 14 → first slit 6 → first hollow chamber 13 → splash-proof cylinder slit 5 and enters the storage battery. Circulate.

EXAMPLES The present invention will be described in detail below based on the drawings. FIG. 1 is a diagram showing one embodiment of a storage battery liquid spout plug according to the present invention. FIG. 2 is a diagram showing a cross section thereof, and FIG. 3 is a diagram showing a splash-proof body.

The liquid spout body 1 has a liquid spout lid 40 and a splash-proof cylinder 2 made of a cylinder having an open end 30. Line A-A' in FIG. 1 is an imaginary line indicating the central axis of the cylinder constituting the splash-proof cylinder 2. The splash-proof body 3 has a central partition plate 19 and four inclined plates 9, 10, 11, 12 and 3.
It has three splash-proof plates 17, 18, and 22. The central partition plate 19 separates the internal space of the splash-proof tube 2 from the splash-proof tube 2.
It is a partition wall that divides into two in the direction of the central axis A-A', and is formed into a shapeless plate shape that matches the hollow shape and dimensions of the splash-proof tube 2. The first inclined plate 9 has a circular shape, and the second to fourth inclined plates 10, 11, 12 have a semicircular shape.
When these are inside the splash-proof cylinder 2, the center axis A-
Each partition wall is formed integrally with the central partition plate 19 so as to form a partition wall inclined at 30 to 40 degrees with respect to a plane orthogonal to A'. The first inclined plate 9 is arranged so as to be located in the vicinity of the open end 30 in the splash-proof cylinder, and from one side 20 of the central partition plate to the other side 20 of the central partition plate.
It is formed to have an inclination toward the side at the above angle. The second inclined plate 10 is located on one side 21 of the central partition plate and is located closer to the liquid spout lid portion 40 than the first inclined plate 9 in the splash-proof cylinder. It is formed to have an inclination of 30 to 40 degrees in the opposite direction to the inclined plate 9. The third inclined plate 11 has one side 20 of the central partition plate.
side, and in the splash-proof cylinder 2, it is located further toward the liquid spout cover part 40 side than the second inclined plate 10, and is inclined by 30 to 40 degrees in the same direction as the first inclined plate 9. It is designed to hold. Further, the fourth inclined plate 12 is located on the side 21 of the center partition plate and other side, and in the splash-proof cylinder 2, is located further on the liquid spout cover part 40 side than the third inclined plate 11, 30-40 in the same direction as the second inclined plate
It is formed to have a degree of inclination. If the angle of these inclined plates is 30 degrees or less, when the liquid spout according to the present invention is attached to a storage battery and used, it becomes difficult for the electrolyte to circulate smoothly inside the liquid spout. On the other hand, if the angle is too large, the splash-proof tube will become long, increasing costs and causing problems in handling, so 30 to 40 degrees is preferable.

By inserting the splash-proof body 3 configured in this manner into the splash-proof cylinder 2 from the direction of the fourth inclined plate, the liquid spout plug for a storage battery according to the present invention can be obtained.

The first inclined plate 9, the second inclined plate 10, the central partition plate 19, and the splash-proof tube 2 form a first hollow chamber 13. Similarly, the first inclined plate 9, the third inclined plate 11, the central partition plate 19, and the splash-proof cylinder 3 form the second hollow chamber 14, and the second inclined plate 10 and the fourth inclined plate 12
The central partition plate 19 and the splash-proof cylinder 2 are the third hollow chamber 1.
5, the third inclined plate 11, the fourth inclined plate 12, the central partition plate 19, and the splash-proof cylinder 2 form a fourth hollow chamber 16, respectively.

The central partition plate 19 is provided with slits at the mounting portions of the first to third inclined plates 9 to 11. In the case of this embodiment, as shown in FIG. 3, both ends of the central partition plate 19 are cut out. If the slit is too small, it will be difficult for the electrolytic solution that has entered the splash-proof cylinder 2 to flow back, and if the slit is too large, it will not be effective in preventing the electrolytic solution from entering. Although it depends on the size of the liquid spout, it is generally appropriate for the slit length in the axial direction of the splash-proof cylinder 2 to be 3 to 5 mm.

The first hollow chamber 13 and the second hollow chamber 14 are the first hollow chamber 13 and the second hollow chamber 14.
The second hollow chamber 14 and the third hollow chamber 15 communicate with each other through the second slit 7, and the third hollow chamber 15 and the fourth hollow chamber 16 communicate with each other through the third slit 8. are doing.

The splash-proof tube 2 has a splash-proof tube slit 5 which is an opening in the part forming the first hollow chamber.
Exhaust holes 4 made of small holes are provided in the portions forming the third hollow chambers. This exhaust hole 4 and the third
It is placed opposite the splash-proof plate. The gas generated inside the storage battery is transmitted through the slit 5 → first hollow chamber 13 → first slit 6 → second hollow chamber 14 → second slit 7 → third hollow chamber 15 → third slit 8 →
Fourth hollow chamber 16 or exhaust hole 4 → third hollow chamber 15 → third slit 8 → fourth hollow chamber 16,
The liquid passes through in this order and is discharged to the outside through an exhaust hole 23 provided in the lid of the liquid port body. At this time, the electrolytic solution that has entered the first hollow chamber along with the gas is blocked by the central partition plate 19, inclined plates 9 to 12, and splash-proof plates 17 and 18 that constitute each hollow chamber, so that the electrolyte is exhausted. There is no leakage from the hole 23 to the outside of the storage battery.

Since the size of the storage battery liquid spout plug is naturally limited by the size of the storage battery itself, it is not possible to provide an unlimited number of hollow chambers within the splash-proof cylinder 2. Furthermore, if the labyrinth structure is too complicated, there will be a problem that the electrolyte once infiltrated will not flow back. On the other hand, if the structure is too simple, the electrolyte will easily leak out. What was designed as the optimum value as a result of examination based on these factors is the liquid spout plug for a storage battery having a structure of four hollow chambers as in the present invention.

Gas generated during charging and discharging accumulates in the electrolytic solution as a so-called gas reservoir, and as a result, the liquid level within the storage battery rises. If the splash-proof cylinder 2 is not provided with the exhaust hole 4, when the electrolyte level rises above the top of the splash-proof cylinder slit 5, the gas exhaust passage will be closed and the internal pressure of the storage battery will rise. When the internal pressure further increases, the gas pushes the electrolyte into the liquid port plug, lowering the electrolyte level and opening the splash-proof cylinder slit 5.
trying to escape from As a result, along with the gas,
There is a risk that the electrolytic solution that has entered the liquid spout may be ejected from the exhaust port 23 of the liquid spout body. The exhaust hole 4 is for preventing the pressure inside the storage battery from increasing. Even if the electrolyte enters the third hollow chamber from the exhaust hole 4 due to vibration of the storage battery, the third splash-proof plate 22 protruding from the fourth inclined plate 12 into the fourth hollow chamber 16 prevents the electrolyte from entering the third hollow chamber. It is possible to prevent the water from entering the hollow chamber of No. 4.

The first splash-proof plate 17 protrudes from the central partition plate 19 into the second hollow chamber 14 so that the electrolyte that has passed through the first slit 6 and entered the second hollow chamber 14 can be
This is to prevent the water from entering the hollow chamber. Similarly, the second splash-proof plate 18 protruding from the central partition plate 19 into the third hollow chamber 15 prevents the electrolyte that has passed through the second slit 7 and entered the third hollow chamber 15 from entering the third hollow chamber 15. This is to prevent the water from entering the hollow chamber 16 of 4.

Furthermore, Figure 4 shows the results of the vibration overflow test for the conventional liquid spout plug and the liquid spout plug of the present invention, at each frequency Hz.
The acceleration G was increased in increments of 0.2 G, vibration was applied for 5 minutes each time, the presence or absence of overflow from the exhaust port 23 of the liquid port cap lid was checked, and the overflow limit point was measured.

Effects of the Invention As described above, the liquid spout plug for a storage battery according to the present invention has a splash-proof cylinder integrally formed at the bottom of the liquid spout body, and a splash-proof body attached to the hollow part of the liquid spout body. A small hollow chamber having the same function as 4 is formed to reliably prevent electrolyte from entering, and once the electrolyte has entered, it is smoothly circulated through the inclined plate and slits mentioned above. The value is great.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a liquid outlet plug for a storage battery according to an embodiment of the present invention, Fig. 2 is a vertical cross-sectional view thereof, Fig. 3 is a splash-proof body according to an embodiment of the present invention, and Fig. 4 is a FIG. 3 is a characteristic comparison diagram of the vibration-proof liquid leakage performance between a liquid spout plug for a storage battery according to an embodiment of the present invention and a conventional liquid spout plug. 1... Liquid spout plug body, 2... Splash-proof tube, 3... Splash-proof body, 4, 23... Exhaust hole, 5-8... Slit,
9-12... Inclined plate, 13-16... Hollow chamber, 1
7, 18, 22...Splashproof plate, 19...Central partition plate, 20...Central partition plate piece, 21...Central partition plate and other side, 30...Splashproof tube open end, 40...Liquid port Bottle lid.

Claims (1)

[Claims for Utility Model Registration] The liquid spout body 1 consists of a liquid spout body 1 and a splash-proof body 3, and the liquid spout body 1 includes a liquid spout lid 40 and a splash-proof cylinder 2 that is a cylinder having an open end 30. The splash-proof body 3 has an inner space of the splash-proof tube 2 aligned with the central axis A- of the splash-proof tube.
Central partition plate 19 consisting of a partition wall dividing into two in the A′ direction
is located near the open end 30 of the splash-proof tube 2 of the central partition plate 19, and is located near the open end 30 of the splash-proof tube 2 of the central partition plate 19, and is connected to the center partition plate and the like from one side 20 of the central partition plate with respect to a plane perpendicular to the central axis A-A' of the splash-proof tube. A first inclined plate 9 consisting of a partition wall inclined 30 to 40 degrees toward one side 21, and a central partition plate and the other first inclined plate 9 on the other side 21.
The partition wall is located closer to the liquid spout lid part 40 than the first inclined plate 9 and is inclined by 30 to 40 degrees in the opposite direction to the first inclined plate 9 with respect to a plane perpendicular to the central axis A-A' of the splash-proof cylinder 3. A second inclined plate 10 in which a first hollow chamber 13 is formed by the splash-proof cylinder 2, a central partition plate 19, and the first inclined plate 9; A third inclined plate 11 is located closer to the liquid spout lid 40 side than the inclined plate 10 and is made of a partition wall inclined at 30 to 40 degrees in the same direction as the first inclined plate 9, and is a splash-proof cylinder. 2, a central partition plate 19 and a first inclined plate 9 forming a second hollow chamber 14; and a third inclined plate 1 on one side 21 of the central partition plate and the other side.
A fourth inclined plate 12 is located further toward the liquid spout lid 40 side than the fourth inclined plate 12 and is formed of a partition wall inclined at 30 to 40 degrees in the same direction as the second inclined plate 10. A third hollow chamber 15 is formed by the partition plate 19 and the second inclined plate, and a fourth hollow chamber 16 is formed by the splash-proof cylinder 2, the central partition plate 19 and the third inclined plate 11; A first slit 6 provided in the attachment portion of the first inclined plate 9 of the central partition plate 19 to communicate the hollow chamber 13 and the second hollow chamber 14; A second slit 7 provided in the second inclined plate 10 mounting portion of the central partition plate 19 to communicate with the chamber 15; A third slit 8 provided in the attachment portion of the third inclined plate 11 of the plate 19; a first splash-proof plate 17 protruding from the central partition plate 19 into the second hollow chamber 14; a second splash-proof plate 18 protruding into the third hollow chamber 15; and a third splash-proof plate 22 protruding from the fourth inclined plate 12 into the third hollow chamber 15; A splash-proof tube slit 5 consisting of an opening is provided in the splash-proof tube 2 in the portion forming the hollow chamber 13, and the splash-proof tube 2 in the portion forming the third hollow chamber 15 is a third splash-proof tube. A liquid outlet plug for a storage battery, which is provided with an exhaust hole 4 consisting of a small hole at a position facing the plate.