JPH0579862U - Liquid mouth plug for storage battery - Google Patents

Abstract

(57) [Summary] [Purpose] Electrolyte does not scatter to the outside even under large vibration conditions.
Provided is a liquid battery stopper having excellent resistance to vibration overflow. [Structure] A liquid mouth plug is composed of a tubular body 2 having an exhaust port 1, and a splash-proof mechanism 3 having an upper portion connected to a lower portion of the tubular body 2. The splash proof mechanism 3 includes a plurality of splash proof plates 5 inside the main body cylinder 4.
Are vertically arranged in a staggered manner in a plurality of stages, a small-diameter tubular portion 10 is provided on the upper portion of the main-body tubular portion 4 via a step portion 9, and a main body discharge port portion 11 is provided in the small-diameter tubular portion 10. In this splashproof mechanism 3, the ratio of the space cross-sectional area of the main body cylinder portion 4 to the minimum space cross-sectional area of the main body discharge port portion 11 is calculated as follows.
When the minimum spatial cross-sectional area of 1 is defined as 1, the range is from 8: 1 to 2: 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a storage battery liquid spout provided at the top of a storage battery.

[0002]

[Prior Art]

 The liquid battery stopper is composed of a tubular body and a splash-proof mechanism. The role of the liquid battery stopper for the storage battery is to prevent the electrolyte droplets from being discharged to the outside due to the rise of the liquid level due to vehicle vibration or overcharge, and to prevent the gas rising with the electrolyte droplets from being discharged to the battery. It is to be discharged to prevent bursting. In order to satisfy these requirements, it is necessary to appropriately determine the position and number of the splash-proof plates of the splash-proof mechanism and secure an area through which gas can pass.

[0003]

[Problems to be solved by the device]

 However, in the past, various methods have been studied for attaching the splash-proof plate in order to prevent the electrolyte droplets from being discharged to the outside, but the overflowing property due to the size of the spatial cross-sectional area of the splash-proof mechanism is not so great. It has not been examined.

If the minimum space cross-sectional area of the main body discharge port of the splash-proof mechanism is too small as compared with the space cross-sectional area of the main body cylinder part of the splash-proof mechanism, electrolytic solution droplets collect in the main-body discharge port of the splash-proof mechanism, The discharge port of the main unit will be in a sealed state, and the electrolyte droplets will be discharged to the outside due to the internal pressure of the battery.

On the other hand, when the minimum spatial cross-sectional area of the main body discharge port of the splash-proof mechanism is larger than the spatial cross-sectional area of the main body cylinder of the splash-proof mechanism, gas passage is improved, but at the same time, the electrolytic solution splashes also. It is likely to be discharged to the outside, and the overflow property will be reduced.

An object of the present invention is to provide a liquid battery cap for a storage battery, in which the electrolytic solution does not scatter to the outside even under a large vibration condition and which is excellent in vibration overflow resistance.

[0007]

[Means for Solving the Problems]

 To explain the structure of the present invention that achieves the above object, the present invention relates to a liquid battery stopper having a cylindrical body having an exhaust port and a splash-proof mechanism having an upper part connected to the cylindrical body. When the ratio of the space cross-sectional area of the main body cylindrical portion of the splash-proof mechanism to the minimum space cross-sectional area of the main body discharge port of the splash-proof mechanism is 1 as the minimum space cross-sectional area of the main body discharge port, It is characterized by being set in the range of 8: 1 to 2: 1.

[0008]

[Action]

 The liquid spout formed under such a condition is excellent in vibration overflow resistance even when the liquid spigot is larger than the conventional liquid spigot even when the vibration condition is large.

[0009]

【Example】

 1 and 2 show an embodiment of a liquid battery stopper for a storage battery according to the present invention. The liquid battery stopper has a tubular body 2 having an exhaust port 1, and a splash-proof mechanism 3 having an upper portion connected to the lower portion of the tubular body 2.

In the splash-proof mechanism 3, a plurality of obliquely downward-facing splash-proof plates 5 are alternately mounted inside the main body tubular portion 4 in a plurality of steps, and the lower portion of the main body tubular portion 4 is closed by a bottom plate 6. Above the bottom plate 6, a lower side passage 7 is provided on the lower peripheral surface of the main body tubular portion 4, and an upper side passage 8 is provided on the upper peripheral surface of the main body tubular portion 4, and on the upper part of the main body tubular portion 4. Is provided with a small-diameter tubular portion 10 via a step portion 9, a main body discharge port portion 11 is provided in the small-diameter tubular portion 10, an outer collar 12 is provided on the outer periphery of the upper end of the small-diameter tubular portion 10, and an upper lateral passage is provided. Corresponding to No. 8, a splashproof plate 5 is provided inside the main body cylindrical portion 4 so as to hang down from the step portion 9.

The splash-proof mechanism 3 has a space cross-sectional area A of the body cylinder portion 4 (a space cross-sectional area of the body barrel portion 4 excluding the splash-proof plate 5) A and a minimum space cross-sectional area B of the body discharge port 11. When the minimum space cross-sectional area B of the main body discharge port portion 11 is 1, the ratio is defined as 8: 1 to 2: 1.

In such a splash-proof mechanism 3, the upper end of the small diameter tubular portion 10 is fitted to the lower portion of the tubular body 2, and the outer flange 12 of the tubular body 2 is fitted to the inner flange of the lower portion of the tubular body 2. It is supported by the tubular body 2 by being locked by 13.

A filter 14 is incorporated in the tubular body 2, and a gas vent hole 15 is provided in the upper lid portion 2 a of the tubular body 2 corresponding to the filter 14. A packing 16 is fitted around the outer circumference of the tubular body 2.

The present inventor made several prototypes of the splash-proof mechanism 3 in which the dimensions of the space cross-sectional area A of the main body cylinder portion 4 of the splash-proof mechanism 3 and the minimum space cross-sectional area B of the main body discharge port 11 were changed. The vibration overflow test was performed. The details at that time are shown below.

(A) Dimensions of the splash-proof mechanism 3

[Table 1] (B) Test conditions Acceleration: 5G Frequency: 33Hz One-sided amplitude: 2.4 mm Time: 2 hours Liquid level: UL ± 0, UL + 5, UL + 10, UL + 15, UL + 20 (In addition, UL is 25 mm from the top of the lid) (C) result

[Table 2] FIG. 3 shows the relationship between the ratio of the spatial cross-sectional area A of the main body cylinder portion 4 of the splash-proof mechanism 3 to the minimum spatial cross-sectional area B of the main body discharge port 11 and the overflow limit liquid level obtained from these tests. FIG.

As is apparent from FIG. 3, the ratio of the spatial cross-sectional area A of the main body cylinder portion 4 of the splash-proof mechanism 3 to the minimum spatial cross-sectional area B of the main body discharge port 11 of the splash-proof mechanism 3 is When the minimum space cross-sectional area B of the discharge port portion 11 was set to 1, it was clarified that the overflow performance was improved in the vibration overflow performance when the range was 8: 1 to 2: 1.

[0017]

[Effect of the device]

 As described above, in the storage battery liquid stopper according to the present invention, the ratio of the space cross-sectional area of the body tube of the splash-proof mechanism to the minimum space cross-sectional area of the body discharge port of the splash-proof mechanism is defined as When the minimum space cross-sectional area of the mouth is set to 1, the range is set to 8: 1 to 2: 1. Therefore, the electrolyte does not scatter to the outside even under vibration conditions larger than the conventional liquid mouth plug, and the vibration-resistant overflow liquid It is possible to improve the sex.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing one embodiment of a storage battery liquid spout according to the present invention.

FIG. 2 is a vertical sectional view of the splash-proof mechanism used in FIG.

FIG. 3 is a diagram showing the relationship between the ratio of the spatial cross-sectional area A of the main body cylinder portion of the splash-proof mechanism to the minimum spatial cross-sectional area B of the main body discharge port and the overflow limit liquid level.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Exhaust port, 2 ... Cylindrical body, 3 ... Splashproof mechanism, 4 ... Main body cylinder part, 5 ... Splashproof plate, 6 ... Bottom plate, 7 ... Lower side passage, 8 ... Upper side passage, 10 ... Small diameter Tube part, 11 ... Main body outlet part, 1
4 ... Filter, 15 ... Exhaust hole.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuhiro Kawaguchi 2-1, 1-1 Nishishinjuku, Shinjuku-ku, Tokyo Shin-Kindo Electric Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A liquid battery stopper for a storage battery, comprising: a tubular body having an exhaust port; and a splash-proof mechanism having an upper part connected to the tubular body, wherein a spatial cross-sectional area of a body tubular portion of the splash-proof mechanism is provided. The ratio of the minimum space cross-sectional area of the main body discharge port of the splash-proof mechanism to the minimum space cross-sectional area of the main body discharge port is set to 8: 1 to 2: 1. A liquid outlet plug for a storage battery, which is characterized in that