JP2583751B2 - Electronic toothbrush voltage detector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voltage detecting device for an electronic toothbrush.

[0002]

2. Description of the Related Art A conventional voltage detecting device for an electronic toothbrush has a structure in which an ammeter or a lamp is attached to a handle, and has a complicated structure and a high cost. For example, as this type of apparatus, Japanese Utility Model Laid-Open Nos. 47-28168, 48-20670, 48-20669, 52-102365, 59-8626, and 53-64655, There are Japanese Utility Model Laid-Open Nos. 53-64654 and 53-91969.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks of the prior art, namely, complicated structure and high cost, and makes it easy to spread the electronic toothbrush to the general public.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides two electric conductors which are respectively connected to both electrodes of a built-in battery and are respectively located on a handle and a brush head. By holding the handle by hand and putting the brush head in the mouth and using it,
Used for an electronic toothbrush forming a conductive path between both electrodes of a battery through a human body, a voltage detecting device for the built-in battery, having a rigid base,
The luminous body is fixed at a position visible from the outside with respect to the base, a contact wire is connected to each of a pair of positive and negative terminals of the luminous body, and the contact wire protrudes from the base. At the same time, each contact wire is bent by applying a certain force and has flexibility to maintain the bent state by removing the force, and by bending, the distance between both contact wires can be changed. An electronic toothbrush voltage detecting device, further comprising: identification means for indicating the direction in which each of the contact wires should contact the two conductors on the surface of the base.

[0005]

In order to detect the energy state of the battery of the electronic toothbrush using the voltage detecting device of the present invention, first, each contact wire is brought into contact with each conductor of the given electronic toothbrush so as to make contact. The electric wire is bent by applying a certain force, the force is removed and the bent state is maintained,
Determine the spacing between each contact wire. Next, holding the electronic toothbrush with one hand, holding the voltage detection device with the other hand, and confirming the orientation of the voltage detection device by the identification means, then aligning each contact wire with each conductor. As described above. At this time, when the battery energy of the electronic toothbrush is at a level where it can be used, the luminous body emits light by contacting the above-mentioned terminals, thereby notifying the effectiveness of the battery. In the opposite case, the illuminant does not emit light, indicating that the battery is not valid.

[0006]

1 and 2 show an embodiment of the present invention, and FIG. 6 shows a use state of the embodiment of the present invention. 1 is an electronic toothbrush, 2 is a handle, 3 is a built-in battery, 4 is a conductive shaft in contact with the (-) pole of the battery 3,
5 is a terminal in contact with the (+) pole of the battery 3, 6
Is a bristles, 7 is a water pool for forming an electric circuit using the conductive shaft 4 and the brush bristles 6 as saliva, and 8 is a hole opposite to the pool 7. 9 is a voltage detection device and 1
Reference numeral 0 denotes the light-emitting body (for example, a light-emitting diode), 11 denotes the (-) terminal wire, and 12 denotes the (+) terminal wire. Reference numeral 13 denotes a mount for fixing the light emitting body 10, the (+) terminal wire 12, and a part of the (-) terminal wire 11. On one terminal wire side of the mount 13, for example, on the (−) terminal wire 11 side,
(-) The direction in which the voltage detection device 9 contacts the toothbrush 1 is indicated by clearly indicating the brush side or by painting the brush. Most of the (+) terminal wire 12 is the backing 13
From the outside. The luminous body 10 is mounted on a mount 13.
Is fixed to a hole 14 formed so as to be cut out, so that a user can easily see it from the outside.

[0007] The electronic toothbrush 1 using the voltage detector 9
In order to detect whether the battery 3 is still usable or should be discarded, first, a certain force is applied to the end of the (−) brush-side terminal wire 11 indicated on the backing sheet. And the distance between the terminal wires 11 and 12 is determined according to the given electronic toothbrush. Here, the terminal wire is easily bent by applying a certain force, and maintains the bent state when the force is removed. Next, hold the electronic toothbrush with one hand and use the voltage detection device 9 with the other hand.
After checking the direction of contact with the voltage detecting device shown on the mount 13, the terminal wires 11 and 12 are brought into contact with the hole 8 or the pool 7 of the brush 1 so as to match. If the energy of the battery 3 is available, the light emitter 10 lights up, which can be easily confirmed from the outside. Otherwise, this can be detected by the illuminant 10 not turning on. In this embodiment, since the electric wire 12 has flexibility, electronic toothbrushes having different dimensions can be sufficiently used.

FIGS. 3, 4 and 5 show another embodiment of the present invention. FIG. 3 is a front view, FIG. 4 is a side view thereof, and FIG.
FIG.

In this embodiment, the base is formed in a disk shape as a whole, and is configured by mounting the upper fitting body 15 to the lower fitting body 16. In the fitted state of the upper fitting body, grooves 23 and 24 are formed in a straight line in the diametric direction, and a hole 20 penetrating vertically is formed at the center position. A luminous body 19 is arranged in this hole 20 and its terminals 21, 22
Extend into grooves 23, 24, respectively, where the terminal wires 17,
18 respectively. Each terminal wire protrudes outward from the disk-shaped base. The fitting state of the upper and lower fitting bodies 15 and 16 is achieved by elastically fitting the projection 25 formed on one of the upper and lower fitting bodies 16 and the depression 26 formed on the other. Also in this embodiment, the luminous body 1
Numeral 9 is arranged so as to be easily visible from the outside, so that the presence or absence of the voltage of the electronic toothbrush can be easily confirmed. Further, in this embodiment, the base is formed by elastically fitting the upper and lower fittings, and the luminous body and the terminal wire as the voltage detecting means are held between the fittings. , The rigidity is high as a whole, and no inadvertent breakage occurs.

[0010]

As described above, the electronic toothbrush voltage detecting device of the present invention is constructed as a separate part without being installed on the toothbrush main body as disclosed in the prior art. Since it is molded with a limited luminous body, its (+) and (-) terminals and a base for supporting it, it is the simplest, low-cost, and contributes to the popularization of electronic toothbrushes.

Further, since the contact wire has a flexibility to bend by applying a certain force and to maintain the bent state by removing the force, the voltage detection device of the present invention has different dimensions. Even a toothbrush can respond sufficiently, and hold the voltage detection device in one hand,
The energy state of the battery can be detected by a simple operation of holding the electronic toothbrush with the other hand and simply bringing the two into contact.

Further, since the identification means for indicating the direction in which each of the contact wires should contact the two conductors is provided on the surface of the base, the direction of the voltage detection device can be extremely easily and easily. It can be determined correctly for the electronic toothbrush, so that the directions of the positive and negative electrodes of the light emitting body are not mistaken.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a front view of another embodiment according to the present invention.

FIG. 4 is a side view of another embodiment according to the present invention.

FIG. 5 is a sectional view taken along line BB of FIG. 3;

FIG. 6 is a diagram illustrating a use state of an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic toothbrush 10 Light-emitting body 11, 12 Electric wire for contact 13 Mount (base)

Claims (1)

(57) [Claims] The present invention further comprises two conductors respectively connected to both electrodes of a built-in battery and located at each of a handle and a brush head. A voltage detecting device for the built-in battery, wherein the voltage detecting device is used for an electronic toothbrush that forms a conductive path between both electrodes of the battery through a human body when used in a mouth, and has a rigid base. And a luminous body fixed to a position visible from the outside with respect to the base, a contact wire is connected to each of a pair of positive and negative terminals of the luminous body, and the contact wire is connected to the base. While projecting from the table, each contact wire has the flexibility to bend by applying a certain force and maintain the bent state by removing the force, and by bending it, Away it is variably configured and further voltage detection device for an electronic toothbrush said the base surface being provided with identification means for indicating the orientation the contact wires are to be contacted with the two conductors.