JPS6330203Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a small rechargeable electrical device using solar cells, and is an improvement in the placement position of the solar cells.

This type of small electrical equipment has conventionally generally had a structure in which a solar cell is integrally fixed to the surface of the main body. However, in electrical appliances such as electric shavers, it is necessary to directly expose solar cells to sunlight. In such a case, the exterior casing of the electrical equipment is likely to deteriorate due to ultraviolet irradiation and high temperature of the atmosphere during light reception. This is even worse if it is made of ordinary plastic, and we are forced to use polycarbonate resin that is resistant to ultraviolet rays, but this type of resin is expensive, has low design freedom, and is subject to many design constraints. There is. Furthermore, in the case of electric razors, the outer blades exposed to the outside deteriorate early due to the ultraviolet rays that are received when the shaver receives light, resulting in poor cutting ability.

Even in cases where it is not necessary to directly expose solar cells to sunlight, electrical devices are frequently left exposed for long periods of time during charging, so the surface of the electrical device, especially the solar cells, may be exposed to sunlight. It is easy for dust to adhere to the surface, or for hands and fingers to stain the light-receiving surface of the solar cell when using electrical equipment, and to damage the expensive solar cell.

Focusing on this fact, this invention places a solar cell on the side of the storage case that stores electrical equipment, so that it can be charged while the electrical equipment is inside the storage case, and when light is received for charging. The purpose is to prevent electrical equipment from deteriorating due to ultraviolet irradiation or becoming coated with dust, and to prevent solar cells from being contaminated or damaged when the electrical equipment itself is used. shall be.

A specific example of this will be explained below using an electric shaver.

In FIG. 1, reference numeral 1 indicates a rechargeable razor body using solar cells, and 2 a storage case for storing the razor.

The upper end of the razor body 1 is bent into an L-shape, and a razor blade unit 3 is disposed at the tip. The exterior casing 1a of the razor body 1 is made of ordinary plastic, and a rechargeable battery 4, a motor 5 for driving the razor blade, etc. are housed inside as shown in FIG.

The illustrated storage case 2 is made of a flexible material such as synthetic leather or plastic, and the solar cell 6 is attached to the flat outer surface 2a of the storage case 2 by attaching it or integrally molding it. ing. The upper surface of the storage case 2 is opened to form an insertion opening 7, and the insertion opening 7 is closed with a lid piece 8.

The lower end surface 1b of the razor main body 1 and the inner inner end surface 2b of the storage case 2 are connected to each other when the razor main body 1 is completely stored in the storage case, and the solar cell 6 and the battery to be charged 4 are energized. Connecting means 9, 10 are provided for possible connection.

The connection means 9 on the razor body side includes a pair of conductive fitting sleeves 9a, 9a connected to both poles of the battery 4 to be charged, and the connection means 10 on the housing case side includes a pair of conductive fitting sleeves 9a connected to the solar cells 6. It is assumed that conductive power supply pins 10a, 10a are provided. In this case, as shown in FIG. 3, when the razor body 1 is completely inserted into the storage case 2, each power supply pin 10 is attached to each fitting sleeve 9a, 9a.
a, 10a are fitted, and the solar cell 6 and the battery to be charged 4
are electrically connected. In this storage state,
The light-receiving surface of the solar cell 6 is irradiated with light to charge the battery 4 to be charged. And the razor body 1 is a storage case 2
It will be removed and used.

Note that the connection means 9 and 10 between the solar cell 6 and the battery to be charged 4 may be as shown in FIG. 4, for example. In this case, the lower end surface 1b of the razor body 1
An iron piece 12 is fixed to the center of the recess 11 formed in the recess 11, and terminal plates 13, 13 corresponding to both poles of the battery 4 to be charged are fixed to both sides of the iron piece 12. A magnetic plate 14 that fits into the recess 11 is attached, and terminal pieces 15, 15 corresponding to both poles of the solar cell 6 and in contact with the terminal plates 13, 13 are attached to the opposing surface of the magnetic plate 14. It's summery.

In addition, although an electric shaver is shown as an example of a small electric appliance in the illustrated example, this invention can also be applied to other relatively small and portable items such as pocket radios and portable lights. Furthermore, charging is not limited to sunlight, but can also be done from indoor lighting. For example, desktop electric calculators are also anticipated as targets of this invention.

Further, although the storage case 2 in the illustrated example is a soft case, it goes without saying that a hard case may also be used.

According to the present invention as described above, since the electrical equipment main body 1 can be charged while the electrical equipment main body 1 is completely covered and housed in the storage case 2, even when exposed to direct sunlight, UV rays It is possible to completely prevent deterioration of the electrical equipment main body 1 due to the like, as well as prevention of dust adhesion.

Since the solar cell 6 is not attached to the electrical equipment main body 1, the solar cell 6 will not be contaminated when it is taken out from the storage case 2 and used, and it is also easier to use than conventional solar cell-based devices. It has the advantage of being lightweight and requiring no special consideration for the external shape.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an electric shaver and its storage case as an example of a small electrical device according to the present invention, Fig. 2 is an electric circuit diagram, and Fig. 3 is a diagram showing the electrical appliance stored in the storage case. FIG.
FIG. 4 is a perspective view of essential parts showing another embodiment of the present invention. 1...Electrical equipment body, (razor body), 2...
Storage case, 4...Battery to be charged, 5...Motor,
6...Solar cell, 9,10...Electrical connection means.

Claims (1)

[Scope of utility model registration request] A rechargeable battery 4 using a solar cell 6 as a charging source is built into the electrical equipment main body 1, and the solar battery 6 is disposed on the outer surface of a storage case 2 that stores the entire electrical equipment main body 1 in a covered state. 2 electrical equipment body 1
The battery to be charged 4 and the solar cell 6 are electrically connected to each other via the connecting means 9 and 10 provided on the electrical equipment main body 1 and the storage case 2 when the entire battery is covered and stored. A small, rechargeable electrical device powered by solar cells.