JP2004319355A - Waterproof battery case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive waterproof battery case excellent in mass productivity with a simple structure, and facilitating the replacement work of a battery or the like. <P>SOLUTION: In this battery case for housing a commercially available battery, a rubber packing is arranged in the connection part of a first case and a second case separately formed, and both the case are connected in a sealed state by a connecting means through the packing, whereby the penetration of water or moisture into the battery case can be prevented. The first case and the second case have screw holes bored in positions opposed when both the cases are connected, so that both the cases can be connected by screwing the screw holes. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure of a waterproof battery case for use in toys and electric appliances used in environments where waterproofness is required, such as in a wet place or a humid place.
[0002]
[Prior art]
Conventionally, toys and electric appliances used around water have been sold. For example, toys include a water gun, a soap bubble generating toy, and a model toy used in a bathroom. Examples of the electric appliance include an electric toothpaste and a bath water circulation device.
The power source used for these appliances is a 100 volt current supplied from an outlet or a commercially available battery. However, it is less preferred to use a 100 volt power supply provided by a household outlet around the water. No matter how safe measures are taken, it is difficult to completely avoid the danger of electric shock. Therefore, it is safer to use a low-voltage commercial battery if possible.
In this case, the problem is the tightness of the battery case. It is easy to maintain waterproofness if the internal electronic circuit is sealed with resin or the like, but in the case of a battery case that requires replacement work, it must be formed to be openable and closable. Because you can't. If the airtightness is not sufficient, the inside of the electric appliance will be flooded and the battery will rust, thus causing a problem such as poor connection or liquid leakage.
[0003]
[Problems to be solved by the invention]
In view of the above, the present invention has been made in view of the above-described problems of the related art, and has a waterproof battery case that is inexpensive, has a simple structure, is excellent in mass productivity, and can easily perform battery replacement work and the like. The task is to provide.
[0004]
[Means for Solving the Problems]
The invention according to claim 1 is a battery case for housing a commercially available battery,
A rubber packing is disposed at the joint between the first case and the second case formed by division, and the two cases are connected in close contact with each other via the packing by connecting means, so that water is introduced into the battery case. And moisture can be prevented from entering.
[0005]
According to the present invention, by arranging the rubber packing at the joint between the first case and the second case formed separately, the sealing property of the battery case is improved, and water and moisture inside the case are prevented from being increased. Intrusion can be prevented.
[0006]
According to the second aspect of the present invention, in the first aspect,
The first case and the second case are provided with screw connection means for connecting both cases by drilling screw holes at positions facing each other when the two cases are connected, and screwing the screw holes. It is characterized by having.
[0007]
According to the present invention, by tightly tightening the first case and the second case by screwing, it is possible to enhance the adhesion of the packing and prevent the occurrence of a gap.
[0008]
The invention according to claim 3 is the invention according to claim 1 or 2,
Either the first case or the second case is provided with an electrode fitting so that no gap is formed between the battery case and the electrode fitting by means such as crimping or bonding, and from inside the battery case. It is characterized in that it can be electrically connected to the outside.
[0009]
ADVANTAGE OF THE INVENTION According to this invention, permeation of water and moisture from an electrode fitting part can be prevented.
[0010]
The invention according to claim 4 is the invention according to claim 1 or claim 2 or claim 3,
The first case and the second case are formed by resin molding, and one of the cases is provided with an electrode fitting fixed by riveting to a hole formed in the case. A waterproof battery case.
[0011]
According to the present invention, since the electrode fitting is fixed by riveting, the case and the electrode fitting are brought into close contact with each other, and a highly sealed battery case can be easily produced.
[0012]
The invention according to claim 5 is the waterproof battery case according to any one of claims 1 to 4,
A plate-shaped or spring-shaped electrode fitting that comes into contact with the electrode fitting provided on the waterproof battery case is disposed in a battery housing portion of the equipment body to which the waterproof battery case is attached, and the equipment body and / or the waterproof battery case are provided. Is characterized in that the waterproof battery case is easily detachable from the instrument body by providing a detachable holding means for attaching the waterproof battery case to the instrument body.
[0013]
According to the present invention, since the plate-shaped or spring-shaped electrode fitting that comes into contact with the electrode fitting provided on the waterproof battery case is disposed in the battery housing portion of the device main body to which the waterproof battery case is attached, The waterproof battery case can be easily attached in the same way as inserting a battery pack. In addition, since the detachable holding means for attaching the waterproof battery case to the instrument body is provided in the appliance body and / or the waterproof battery case, the battery replacement operation can be easily performed.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention is a battery case for accommodating a commercially available battery, in which a rubber packing is disposed at a joint between a first case and a second case which are formed separately, and the two cases are connected by a connecting means. By connecting in close contact via a packing, it is possible to prevent water or moisture from entering the inside of the battery case. A screw hole is formed in the first case and the second case at a position facing each other when the two cases are connected, and the two cases can be connected by screwing the screw hole. Accordingly, a waterproof battery case which is inexpensive, has a simple structure, is excellent in mass productivity, and can easily perform battery replacement work and the like is provided.
[0015]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an exploded perspective view of the battery case according to the present embodiment.
The main body 1 of the waterproof battery case includes a left case 1A and a right case 1B formed by resin molding. A battery accommodating chamber for accommodating AA batteries 4 is provided inside each of the cases, and the two cases are connected by screws 5 with screws. At the time of connecting the cases, the rubber packing 3 is arranged at the junction of the two cases to seal the battery case and prevent water from entering. The screw 5 is loosely inserted into a hole formed in the right case 1A and screwed into screw holes 13 and 14 provided in the case 1B. In this case, a female screw may be directly formed in the screw holes 13 and 14 to enable screwing, or as another method, the screw holes 13 and 14 may be loosely inserted and fixed with a nut from the back side. It is also possible to embed an insert nut, an onset nut or the like in the screw holes 13 and 14.
[0016]
FIG. 2 is a cross-sectional view of the bottom of the left case 1 </ b> A, showing a mounting structure of the electrode fitting 2. The electrode fitting 2 contacts the electrodes of the battery housed in the case and connects the batteries in series. In the present embodiment, the electrode fitting 2 is fixed by heating and fusing the hole 21. However, this may be another method. For example, it may be fixed by screwing, bonding, or the like, or a method of locking with a locking claw may be used.
[0017]
FIG. 3 shows a cross-sectional view in a state where the battery case main body is assembled.
As shown in the figure, two electrode fittings 11 and 12 for connecting to an electric appliance are provided on the bottom of the right case 1B. The electrode fitting supplies an electric current to the outside of the battery case by not only contacting the electrode of the battery but also contacting the electrode fitting (of the electric appliance body) outside the battery case. Therefore, the shape and the like are not particularly limited to this embodiment as long as they are formed of a conductive metal and can be attached to the battery case in a watertight structure.
[0018]
FIG. 4 shows, as an example, a configuration in which an electrode fitting is fixed with a lip. In order to prevent a reverse current from flowing when the user mistakenly inserts the polarity of the battery, a rib-shaped convex portion is formed near the electrode fitting on the positive electrode side to form an electrode with the negative electrode of the battery. The fitting is configured so as not to contact.
[0019]
FIG. 5 shows a process of attaching the battery case according to the present embodiment to an electric appliance. In this figure, the electric appliance main body 6 only shows the vicinity of the accommodation room of the battery case.
The electric appliance body 6 is, for example, a toy for playing in the water or a bath water circulator used in a bathroom. The main body 1 of the battery case is accommodated in an accommodation room 6A provided in the electric appliance body 6. At this time, the electrode fitting of the battery case 1 comes into contact with the electrode fitting 63 provided in the storage chamber 6A. Then, after housing the battery case 1, the lid 6B is attached. The lid 6B is formed by resin molding, and locks two locking claws 65 provided on the left end with an engaging portion provided in the housing chamber 6A, and locks a locking claw 62 on the pressing portion 61 side. It is attached by. The pressing portion 61 is formed with a slit so that the locking claw 62 is retracted when pressed by a finger. In this embodiment, the lid 6 is a detachable holding means for holding the battery case to the electric appliance body 6.
[0020]
【The invention's effect】
According to the present invention, by arranging the rubber packing at the joint between the first case and the second case formed separately, the sealing property of the battery case is improved, and water and moisture inside the case are prevented from being increased. Intrusion can be prevented.
[0021]
Further, according to the present invention, by tightly tightening the first case and the second case by screwing, it is possible to enhance the adhesion of the packing and prevent the occurrence of a gap.
[0022]
Further, according to the present invention, it is possible to prevent intrusion of water or moisture from the electrode fitting mounting portion.
[0023]
Further, according to the present invention, since the electrode fitting is fixed by riveting, the case and the electrode fitting are brought into close contact with each other, and a highly sealed battery case can be easily produced.
[0024]
Further, according to the present invention, since a plate-shaped or spring-shaped electrode fitting that comes into contact with the electrode fitting provided on the waterproof battery case is disposed in the battery housing portion of the appliance body to which the waterproof battery case is attached, A waterproof battery case can be easily attached in the same way as inserting a battery. In addition, since the detachable holding means for attaching the waterproof battery case to the instrument body is provided in the appliance body and / or the waterproof battery case, the battery replacement operation can be easily performed.
[0025]
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a battery case according to an embodiment.
FIG. 2 is a sectional view of the bottom of a left case 1A shown in FIG.
FIG. 3 is a cross-sectional view showing a state where the battery case main body shown in FIG. 1 is assembled.
FIG. 4 is a diagram showing an example in which the electrode fitting shown in FIG. 3 is fixed by a lip.
FIG. 5 is a diagram showing a process of attaching the battery case shown in FIG. 1 to an electric appliance.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 1A Left case 1B Right case 2 Electrode fitting 3 Rubber packing 4 AA battery 5 Screw 6 Electric appliance main body 6A Housing 6B Cover 11 Electrode fitting 12 Electrode fitting 13 Screw hole 14 Screw hole 21 Hole 61 Pressing part 62 Lock Claw 63 Electrode fitting 65 Locking claw

Claims (5)

A battery case for housing a commercially available battery,
A rubber packing is disposed at the joint between the first case and the second case formed by division, and the two cases are connected in close contact with each other via the packing by connecting means, so that water is introduced into the battery case. A waterproof battery case characterized by being able to prevent intrusion of moisture and moisture. In claim 1,
The first case and the second case are provided with screw connection means for connecting both cases by drilling screw holes at positions facing each other when the two cases are connected, and screwing the screw holes. A waterproof battery case. In claim 1 or claim 2,
Either the first case or the second case is provided with an electrode fitting so that no gap is formed between the battery case and the electrode fitting by means such as crimping or bonding, and from inside the battery case. A waterproof battery case characterized by being able to be electrically connected to the outside. In claim 1, claim 2, or claim 3,
The first case and the second case are formed by resin molding, and one of the cases is provided with an electrode fitting fixed by riveting to a hole formed in the case. A waterproof battery case. A waterproof battery case according to any one of claims 1 to 4, wherein
A plate-shaped or spring-shaped electrode fitting that comes into contact with the electrode fitting provided on the waterproof battery case is disposed in a battery housing portion of the equipment body to which the waterproof battery case is attached, and the equipment body and / or the waterproof battery case are provided. The waterproof battery case is characterized in that the waterproof battery case is easily detachable from the instrument body by providing a detachable holding means for attaching the waterproof battery case to the instrument body.

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