JPS59198655A - Charge type electric apparatus - Google Patents

Abstract

PURPOSE:To prevent a tear of a valve checking invasion of water from outside while exhausting gas generated from a storage battery by forming an exhaust gas passage by separating the storage battery from a space part with a water-proof valve and making a small hole provided on the peripheral wall near the bottom wall to be connected through with the space part. CONSTITUTION:A space part 4 upwardly opened by a cylindrical rib 12 is formed in the center of an under cover, the opening of the space part 4 covered by a preventive valve 5, which has permeability but does not let in water, while fixing a water-proof valve 5 by pressing a tapered cylindrical water-proof rubber 13 into the space part 4 from above the water-proof valve 5 and having a through hole 14 piercing the center of the water-proof rubber 13. Thereby, the gas generated from a storage battery 2 is exhausted outside from a small hole through the water-proof valve 5 via the space part 4 for adjusting internal and external atmospheric pressure. In the case of a machinery and apparatus using water, the invasion of water flowing backward through said exhaust gas passage 7 is prevented by the water-proof valve 5. Moreover, the exhaust gas passage 7 is curved almost in the L-shape while being provided with the water-proof valve 5 its bottom so as not to break the water-proof valve 5 even a rod is inserted from the small hole 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to rechargeable electric appliances such as electric dJ toothbrushes and washable electric shavers.

[Background technology]

In rechargeable electrical equipment, a problem arises in which gas is generated if the storage battery is overcharged.

For this reason, as disclosed in No. 2S4428, a gas vent hole was provided on the lower surface of the casing, and a waterproof valve membrane was provided in the waste vent hole. Due to mischief, etc., some kind of protrusion may be pushed into the gas vent hole, and at this time there is a problem in that the membrane is torn. This invention was developed in view of the above, and its purpose is to exhaust all gas generated from a storage battery and to prevent tearing of a valve membrane for preventing water from entering from the outside. [Disclosure of the Invention] The present invention The storage battery 1.2) and the 7-
A space (4) is formed on the top surface of the bottom wall of the storage battery (2), and the upper casing (2) is provided with a space (4) having a top surface. This space (4
), a waterproof valve membrane (5) is placed over the opening of the hole (5), and the waterproof valve membrane (5) separates the storage battery i21 from the space (4). ) Wo Kukan Iku (
4) and an exhaust gas passage (7) which is buried and bent in an abbreviated shape. An example of this will be explained about the case of Denkama Tozurashi.

'11 ID casing center, with 61 pipes 1l-1:
Tanabata 13) and the livestock pond (2) are housed there, as well as the Shita (3) K. ]IJ 輔(81K ilX attached toothbrush (9) can be rotated by low link.Casing 1) consists of a solid cylindrical casing UO+ and a lower blade bar [11] that constitutes the bottom wall. and the sword Δranari, the lower cover (with a cylindrical lyre (12I) in the center)
Accordingly, an open space (41) is formed,
The opening of the space (4) is covered with a waterproof valve membrane (5) made of tetrafluoroethylene that has air permeability but does not allow water to pass through, and the space above and below the waterproof valve membrane (5). A tapered cylindrical waterproof rubber (13) e is press-fitted into the part (4) to completely fix the waterproof valve membrane (5), and a through hole (
There is a bud hole at 141'. Moreover, a small hole (6) in the peripheral wall of the casing (1) is provided between the lower cover (1) and the casing body (10), and this small hole (6) is connected to the space (4).
) and is bent in an abbreviated shape to form a waste discharge path (6). As shown in Figure 2, the storage battery (2) is placed opposite the lower cover [+11].
The battery t21 is separated from the space (4) (Ld), and a conical coil spring (14) is interposed between the storage battery (2) and the waterproof rubber (13) to make it waterproof. Rubber (Kou 3)
prevents it from loosening. Therefore, the gas generated from the storage battery 2) passes through the waterproof valve membrane (6) and passes through the space [41f
M is discharged to the outside from the small hole (6), and the inside and outside air pressure is
'p ''!l 'f However, even in the case of equipment that uses water, the waterproof valve g+5+ prevents water from flowing backward through this exhaust gas path (7).Moreover, the exhaust gas path ( 7) is bent into an abbreviated shape, and the waterproof valve membrane (5) is housed in the back of it, so children etc. can avoid the small hole (6).
The waterproof valve membrane (5) will not become damaged even if the valve is placed in a room.

In addition, a pair of contact fittings (
16) is attached to Toyama, and this contact fitting (15) is connected to the storage battery (2) through the rectifying piece tie (16).
ing.

On the other hand, charging is done at a charging stand 117 as shown in the fourth example.
), and the charging stand (17)
A transformer (I8J and a diode (19) are built in, and a 1μ diameter plate (21J) is connected to the inner diameter). Then, go to the charging station (17).
When the tooth brush (A)'z is removed, the contact metal fitting (15) and the contact piece (O) come into contact, forming a charging circuit like the fifth one.

〔Effect of the invention〕

As described above, the present invention has four grooves.In short, water can be discharged beyond the valve membrane, and water can be completely prevented from entering the interior. Since it is curved in a shape, it has the advantage that even if a child or the like accidentally inserts a stick into the small hole, the valve leaflet will not be damaged.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is an enlarged partial sectional view of the same as above, FIG. 5 is a sectional view taken along line XX in FIG. 2, and FIG. 1 is a sectional view of a charging stand. Figure 5 is a circuit diagram showing the same charging circuit as above (Old...Casing, (2)...
・Storage battery, (3)...7-ta, (4)・Space part, (5
)...Waterproof valve membrane, (6) - small hole, (7)...exhaust gas path. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] Storage battery and Tanabata in the fil casing and "71/iij
In addition, the storage battery is arranged so as to face the bottom wall of the lower part of the casing, and a space with an open top is formed entirely on the top surface of this bottom wall.
A breathable waterproof valve membrane is fully stretched over the opening of this space, and the storage battery and the space are connected by the waterproof valve membrane. A rechargeable electric device characterized in that a small hole provided in a circumferential wall near a bottom wall is connected to a space to form a wandering waste path bent in a 1lII8L shape. (2) A self-shaped groove with an open top is provided protrudingly on the upper surface of the wall of the casing to form a space inside the groove, and a m
Arrange the waterproof valve membrane as shown in the catalog, and fit the waterproof valve into the upper blade and rear of the waterproof valve. 1. A rechargeable air pressure device as claimed in claim 1, characterized in that it is equipped with an air spring between the two sides.