JPH0117056Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a rechargeable electric device that displays the state of charge by emitting light using a light-emitting element, a lamp, or the like.

As is well known, in this type of electrical equipment, such as a rechargeable electric shaver, a motor is connected in series to a rechargeable battery connected to a charging circuit via a sliding power switch, and when charging, the switch is opened. By protruding the power supply plug blade stored in the main body case and inserting it into a commercial power outlet, charging of the battery to be charged is started, and at the same time, a light emitting element in the charging display circuit, such as a light emitting element, is activated. The battery is designed to display a light-emitting display to indicate charging.

By the way, in the past, the light emitting element was attached regardless of the open/closed state of the power switch, so the user may sometimes insert a plug knife without checking the position of the switch's operating knob, and at this time the switch may close. If so, the battery to be charged will not be charged. For this reason, conventional approaches have been to introduce circuits that do not display charging when the power switch is closed, that is, when the control knob is in the ON position, or to provide a switch mechanism that allows charging even when the power switch is closed. However, all of them have drawbacks that make them difficult to implement, as they result in complicated circuit configurations and an increase in the number of parts.

This idea was made in view of the above circumstances,
The operating knob of the sliding power switch is arranged on an outer wall surface different from the protruding surface of the charging plug blade of the main case, and the operating knob of the sliding power switch is placed within the sliding operation area of the operating knob on the outer wall surface of the main case where the operating knob is arranged. In addition to positioning the display light emitter, when the above operation knob is in the ON position, cover the above light emitter with a part of the above knob, and turn the above knob OFF.
By configuring the light emitter to be exposed only when the battery is in the position, it is possible to prevent incorrect use during charging without complicating the circuit or switch structure.

An embodiment of this invention will be described below with reference to the drawings.

In FIGS. 1 and 2, 1 is a main body case made of synthetic resin, 2 is an outer cutter holder fitted to the upper end of the main body case 1, and 3 is an outer cutter stretched on the outer cutter holder 2. Reference numeral 4 denotes a charging plug knife that is set to be accessible from the outer wall of the main body case 1, and a pair of plug blades 5, 5 of this plug knife 4 are connected to the primary winding of a power transformer 6. There is. Reference numeral 7 denotes a charging display circuit connected in parallel to the secondary winding of the power transformer 6, which is composed of a light emitter 8 such as a light emitting diode and a protective resistor 9. 10 is a rectifying element; 11 is a rechargeable battery connected in series with the rectifying element 10; 12 is a motor for driving an inner blade (not shown) that slides on the inner surface of the outer blade 3; 11 via a sliding power switch 13. Reference numeral 14 designates an operating knob of the power switch 13 mounted on the outer wall of the main body case 1, which is different from the protruding surface of the charging plug blades 5, 5. This knob has its upper edge 14a
It is used as a guideline for ON and OFF instructions.

The light emitting body 8 is located within the slide operation area S of the operating knob 14 in the main body case 1, and furthermore, the operating knob 14 has a notch 15 formed in a portion corresponding to the light emitting body 8. . By forming this notch 15, the light emitting body 8 is exposed only when the operating knob 14 is in the OFF position.In other words, when the operating knob 14 is in the ON position, the light emitting body 8 is exposed
The sky above the light emitter 8 will be covered by a part of the area.

In the above configuration, when charging the battery 11 to be charged, the power switch 13 is opened, that is, the operation knob 14 is set to the OFF position shown in FIG. When the is plugged into a commercial power outlet, the pulsating current i shown in FIG. With each rectification i, the light emitter 8 emits green light, for example, and the charged battery 1
1 charging status is displayed. In this case, the operating knob 14 of the power switch and the light emitter 8 are formed on an outer wall surface different from the protruding surface of the plug blades 5, 5 of the main body case 1, so that they can be easily confirmed from the outside even when the plug is plugged into an outlet.

Here, the user carelessly turns the operation knob 14.
When set to the ON position shown in FIG. 5 and the plug blades 5, 5 are inserted into the outlet, the exposure of the light emitting body 8 is hidden by the operation knob 14, so the user can not see the green light emitted. You can't see it visually, so you can realize that you've made a mistake in your operation, that is, you've turned the control knob to the ON position to charge the battery.
Of course, there is a notch 1 for exposing the light emitting body 8.
5 may be formed at the center of the operating knob 14, for example, as shown in FIG. 6, depending on the setting position of the light emitter 8.

FIG. 7 shows a modification in which the operating knob 14 is made of a colored translucent material, for example a red translucent resin, and a white light emitting element is used as the light emitter 8. In this example, when the operation knob 14 is in the OFF position as shown in the figure, the light emitter 8 emits white light to indicate that charging is being performed properly. When the operating knob 14 is in the ON position as shown in FIG. ON
You can notice the mistake of charging in the wrong position.

By the way, in each of the above embodiments, the operation knob 14
The upper end 14a is used as a reference for setting the ON and OFF positions, and when the operating knob 14 is in the ON position, the light emitter 8 is covered, and when the operation knob 14 is in the OFF position, the light emitter 8 is exposed by the notch 15. , the center position 1 of the operating knob 14 as shown in FIGS. 9 and 10.
4b is used as a reference for setting the ON and OFF positions, the above notch 15 is not required, and the notch 15 shown in FIG.
Expose the light emitter 8 at the OFF position and turn it ON as shown in Figure 10.
The light emitter 8 can be covered at the position. FIG. 11 shows still another embodiment, in which a switch operation knob 14 is provided that spans a side wall 1b of the main body case 1 opposite to the side wall 1a from which the plug blades 5, 5 project. Light emitter 8 on 1b
, and is configured so that the light emitting body 8 is hidden by sliding the operation knob 14 to the ON position.
According to this embodiment, when the plug blades 5, 5 are taken out and the power outlet is inserted, the light emitting body 8 always faces the operator, and it is possible to reliably warn whether or not the operating knob 14 is in the proper position for charging. can.

Note that the light emitting body 8 is not limited to a light emitting element, and may be replaced by an incandescent lamp, a neon lamp, or the like.

As described above, this invention locates the light-emitting body for charge indication within the slide area of the slide operation knob, and also configures the light-emitting body to cover the operation knob in the ON position. Misuse of charging can be prevented without complicating the structure.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an electric shaver to which the rechargeable electric device of this invention is applied, Fig. 2 is an electric circuit diagram of the electric shaver, and Figs. 3 and 5 show the operation knob in the OFF and ON positions. A plan view of the main part, Fig. 4 is an explanatory diagram of the current during charging, Fig. 6 is a plan view showing a modification of the main part, Figs. 7 to 11.
The figure is an explanatory diagram of a modification of the main part. 1...Body case, 8...Light emitter, 13...Sliding power switch, 14...Operation knob, S
...Slide operation area.

Claims (1)

[Scope of utility model registration request] A sliding power switch 13 is provided on an outer wall surface different from the protruding surface of the charging plug blades 5, 5 of the main body case 1.
The operation knob 14 is arranged, and the light emitting body 8 for charging display is positioned within the slide operation area S of the operation knob 14 on the outer wall surface of the main body case 1 where the operation knob 14 is arranged. In the ON position, the light emitting body 8 is covered with a part of the knob 14, and the knob 14 is turned OFF.
A rechargeable electric device characterized in that a light emitting body 8 is exposed only when the device is placed in the position.