JPH07313253A - Voltage detecting device for electric tooth-brush - Google Patents

Abstract

PURPOSE:To provide a voltage detecting device for electronic tooth-brush in which its complicated structure and high cost are solved. CONSTITUTION:A voltage detecting device for an electronic tooth-brush 1 has a rigid base 13, a light emitting body 10 is fixed in a visually confirmable position from the outside of the base, contact wires 11, 12 are connected to a pair of terminals for positive and negative electrodes of the light emitting body, respectively, and the contact wires are protruded from the base. Each contact wire has flexibility of curving by adding a fixed force and keeping the curved state by removing the force, so that the distance between both the contact wires can be varied by curving, and an identifying means for showing the direction in which each contact wire should make contact with two conductors is provided on the base.

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 device for detecting a voltage of an electronic toothbrush has a complicated structure and a high cost because it has a handle to which an ammeter or a lamp is attached. For example, as the apparatus of this kind, there are actual open Sho 47-28168, actual open Sho 20-20670, actual open Sho 48-20669, actual open Sho 52-102365, actual open Sho 59-8626, actual open Sho 53-64655, There are actual development Sho 53-64654, and actual development Sho 53-91969.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks of the prior art, namely the complicated structure and high cost, and facilitates the popularization of electronic toothbrushes.

[0004]

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 which are respectively located in a handle and a brush head. By gripping the handle part by hand and using the brush head part in the mouth,
A voltage detection device for the built-in battery, which is used for an electronic toothbrush that forms a conductive path between both electrodes of a battery through a human body, and has a rigid base,
The light emitting body is fixed to a position visible from the outside with respect to the base, and the contact electric wires are respectively connected to a pair of terminals for the positive electrode and the negative electrode of the light emitting body so that the contact electric wires project from the base. At the same time, each contact wire bends when a constant force is applied and has the flexibility to maintain the bent state by removing the force. By bending, the distance between both contact wires can be changed. The electronic toothbrush voltage detection device is configured such that the surface of the base is further provided with identification means that indicates the direction in which each of the contact wires should contact the two conductors.

[0005]

In order to detect the energy state of the battery of the electronic toothbrush by using the voltage detecting device of the present invention, first, each contact electric wire is brought into contact with each conductor of the electronic toothbrush. The electric wire is bent by applying a constant force, and the force is removed to maintain the bent state,
Determine the spacing between each contact wire. Next, after holding the electronic toothbrush with one hand and the voltage detection device with the other hand, after confirming the direction of the voltage detection device by the identification means, match the contact electric wires with the conductors. To contact each other. At this time, when the battery energy of the electronic toothbrush is in a usable level, the luminous body emits light upon contact with each of the above-mentioned terminals to notify the effectiveness of the battery. In the opposite case, the light emitter 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 usage state of the embodiment of the present invention. 1 is an electronic toothbrush, 2 is a handle, 3 is a battery having a handle 2 built in, 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 bristles 6 as a medium with saliva, and 8 is a hole on the opposite side of the pool 7. 9 is a voltage detection device, 1
Reference numeral 0 is the light emitting body (for example, light emitting diode), 11 is the (−) terminal electric wire, and 12 is the (+) terminal electric wire. A mount 13 fixes the light emitting body 10, the (+) terminal electric wire 12, and a part of the (−) terminal electric wire 11. On one terminal wire side of this mount 13, for example, on the (−) terminal wire 11 side,
The direction in which the voltage detection device 9 is in contact with the toothbrush 1 is indicated by clearly indicating (−) brush side or by a picture of the brush or the like. (+) Terminal Most of the electric wire 12 is a mount 13
Exists from the outside. In addition, the light emitter 10 is mounted on the mount 13
Is fixed to the hole 14 formed so as to be cut out so that the user can easily see it from the outside.

The electronic toothbrush 1 using the voltage detector 9
In order to detect whether the battery 3 of No. 3 is still usable or should be discarded, first, by applying a constant force to the end of the (-) brush side terminal electric wire 11 indicated on the mount, Is curved and the distance between the terminal electric wires 11 and 12 is determined according to the given electronic toothbrush. Here, the terminal electric wire is easily bent by applying a constant force, and when the force is removed, the bent state is maintained. Next, hold the electronic toothbrush with one hand and the voltage detection device 9 with the other hand.
After confirming 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 of the brush 1 or the pool 7 so as to coincide with each other. If the energy of the battery 3 is in a usable state, the light emitter 10 lights up, which can be easily confirmed from the outside. If this is not the case, this can be detected by the fact that the light emitter 10 does not light. In this embodiment, since the electric wire 12 has flexibility, electronic toothbrushes having different sizes 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.
A -B line sectional view is shown.

In this embodiment, the base is formed in a disk shape as a whole, and the upper fitting body 15 is attached to the lower fitting body 16. In the fitted state of the upper fitting body, the grooves 23 and 24 are linearly formed in the diametrical direction, and the hole 20 penetrating vertically is formed at the center position thereof. A light emitter 19 is arranged in this hole 20 and its terminals 21, 22
Respectively extend into the grooves 23, 24, where the terminal wires 17,
18 are bonded to each. Each terminal wire projects outward from the disk-shaped base. The upper and lower fitting bodies 15 and 16 are fitted to each other by elastically fitting the protrusion 25 formed on either one and the recess 26 formed on the other. Also in this embodiment, the luminous body 1
9 is arranged so that it can be easily seen 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 light emitting body which is the voltage detecting means and the terminal wire are sandwiched between the two fittings. Since it is held at, its rigidity is high as a whole, and it is not accidentally damaged.

[0010]

As described above, the voltage detecting device for an electronic toothbrush of the present invention is constructed as a separate component without being installed in the toothbrush body as has been conventionally announced, and the structure thereof is the minimum required. Since it is formed of a limited light emitting body, its (+) (-) terminals, and a base for supporting it, it is the simplest and the least cost and contributes to the popularization of electronic toothbrushes.

Further, since the contact electric wire is bent by applying a constant force and has the flexibility of maintaining the bent state by removing the force, the voltage measuring device of the present invention has different sizes. A toothbrush can be used, and you can hold the voltage measuring 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 them into contact with each other.

Furthermore, since the surface of the base is provided with identification means for indicating the direction in which the respective contact electric wires should contact the two conductors, the direction of the voltage detecting device can be very easily and It can be correctly determined for the electronic toothbrush, and the orientation of the positive and negative electrodes of the light emitter can be prevented.

[Brief description of 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.

5 is a cross-sectional view taken along the line BB of FIG.

FIG. 6 is a diagram showing a usage state of an embodiment of the present invention.

[Explanation of symbols]

 1 Electronic Toothbrush 10 Light-Emitting Body 11, 12 Contact Electric Wire 13 Mount (Base)

Claims (1)

[Claims] 1. A battery comprising two electric conductors which are respectively connected to both electrodes of a built-in battery and which are respectively located at a handle and a brush head, and the handle is gripped by a hand, and the brush head is A built-in battery voltage detection device, which is used for an electronic toothbrush that forms a conductive path between both electrodes of a battery through the human body when used by being put in the mouth, and has a rigid base. In addition, the light emitting body is fixed to a position where it can be seen from the outside with respect to the base, and the contact electric wires are connected to a pair of terminals for the positive electrode and the negative electrode of the light emitting body, respectively. While protruding from the stand, each contact electric wire bends by applying a constant force and has the flexibility to maintain the curved state by removing the force. 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.