JPH0218523Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a novel cylindrical battery that integrally combines a solar cell and a storage battery.

[Prior art]

Recently, various small electric appliances such as electric razors, pocket radios, and standing lights that use solar cells have come into use.
As shown in the publication, in most of these, the solar cell is integrated into a part of the outer surface of the electrical equipment, while the storage battery is housed in a battery compartment provided elsewhere within the electrical equipment. .

[Problem that the invention attempts to solve]

Therefore, in one electrical device, it is necessary to provide separate locations for installing solar cells and storage batteries, and it is also necessary to wire the solar cells and the storage battery storage area, making it difficult to install electrical equipment. This caused the structure to become more complex and the number of assembly steps to increase.

Furthermore, in order to charge this electrical device, it must be placed in a place exposed to direct sunlight because the solar cell is integrated into the device. For this reason, there has been a problem in that the plastic exterior body of the electrical equipment is susceptible to deterioration due to ultraviolet ray irradiation and high temperature of the atmosphere during light reception.

Therefore, as shown in Japanese Utility Model Application Publication No. 50-59528, for example, a system has been proposed in which a storage battery and a solar cell are handled as a set by arranging a solar cell on the outer surface of a case that houses the storage battery. However, this device is designed specifically for devices that use a case for setting, and therefore lacks versatility to other devices. It was necessary to reconnect the terminal and the lead wire on the set case side.

In particular, in this type of solar cell charging device, in order to increase the charging efficiency, that is, the light receiving efficiency, it is necessary to install the solar cells on the top surface.For this reason, in the conventional example described above, the solar cells must be arranged on the top surface of the rectangular case. There are restrictions on the external shape, and if you just throw them out at random when charging, it is impossible to determine which direction the light-receiving surface faces, and you have to line them up in an orderly manner each time you charge them, which is a hassle.

[Means to solve the problem]

Focusing on this fact, this invention provides an anode terminal at one end opening of the cylindrical outer container and a cathode terminal at the other end opening. The storage battery is stored off to one side so that it is set at a position offset from the axis,
A solar cell for charging the storage battery is placed in the space created between the outer container and the storage battery in this stored state, and at least the portion of the outer container that faces the light-receiving surface of the solar cell is made transparent. Electrical equipment only needs to be provided with a storage section to store it in and out, which facilitates the use of solar cells in small electrical equipment and simplifies the structure and assembly of small electrical equipment. It can also prevent the deterioration of small electrical equipment caused by ultraviolet rays.
Furthermore, the present invention aims to provide a cylindrical battery that is compatible with standard dry batteries such as unitary batteries.

In particular, the present invention makes the outer container cylindrical, and by creating a self-righting action by storing the storage battery in an eccentric position and a specific relationship with the direction of the light-receiving surface of the solar cell, it can be placed randomly during charging. The light-receiving surface can be turned upward by rolling to the most stable position, thereby increasing the light-receiving efficiency.

In addition, by storing the built-in storage battery in an eccentric arrangement, a space is created in the opposite position, and by storing the solar cell in this space, it is possible to improve efficiency without deviating from the outside diameter of the dry cell battery specified by the JIS standard. It can easily accommodate solar cells.

〔Example〕

The details will be explained below based on the drawings. In FIGS. 1 and 2, 1 is a cylindrical battery, which includes a cylindrical outer container 4 having negative and positive terminals 2 and 3, and the outer container 4. It consists of a storage battery 5 and a solar cell 6 built in.

The outer container 4 is formed into a cylindrical shape from a transparent plastic material such as ABS, silicone, acrylic, acrylic styrene, or weather-resistant polycarbonate, and one end opening is sealed with an anode terminal plate 7 having an anode terminal 3 in the center. The opening at the other end is sealed with a cathode terminal plate 8 having a cathode terminal 2 in the center.
The anode terminal 3 and the cathode terminal 2 have conical projections 3a, 2a on the inside of the terminal plates 7, 8, respectively.

As the storage battery 5, for example, a cylindrical alkaline storage battery smaller than the outer container 4 is used. As shown in FIG. The eccentric portions at the anode side end and the cathode side end of the container 4 are engaged and supported by the anode protrusion 3a and the cathode protrusion 2a on the side of the container 4, so that they are biased toward one another.

In this stored state, a space (upper section in FIG. 1) is created between the outer container 4 and the storage battery 5, and a solar cell 6 for charging the storage battery 5 is arranged in this space.

The solar cell 6 has a solar cell element 9 covered with a light-receiving surface 10 made of transparent resin, formed into an arcuate cross section, and attached to a part of the circumference of the storage battery 5 in the axial direction. Further, the anodes of the solar cell 6 and the storage battery 5 are connected to each other by a lead wire 12 via a backflow prevention diode 11, and the cathodes are connected to each other by a lead wire 13.

When the solar cell 6 and the storage battery 5 are integrated into one block in this way, when the outer container 4 is laid down on its side as shown in the figure, the block will always have the light-receiving surface 10 facing upward. You will be able to get up and move freely.

In such cases, the cylindrical battery 1 is placed in the battery compartment of various small electric devices and used as a power source for that device, but in order to charge it, only the cylindrical battery 1 must be removed from the battery compartment. If the solar cell 6 and the storage battery 5 are placed on their side on a desk exposed to sunlight, the block solar cells 6 and the storage battery 5 will be supported so that they can rise up into the outer container 4 using the eccentric support portions at both ends as fulcrums. , the light-receiving surface 10 of the solar cell 6 faces upward and faces the sun through the transparent part of the outer container 4, and the output current of the solar cell 6 passes through the backflow prevention diode 11 to charge the storage battery 5. After charging, this cylindrical battery 1 is placed in the battery storage section and can be reused as a power source for the device.

Note that instead of the above embodiment, the solar cell 6 and the storage battery 5 are built into the outer container 4 in a fixed state,
A weight may be attached to the opposite side of the container 4 from the light-receiving surface 10, so that even if the outer container 4 is rolled on its side during charging, the outer container 4 immediately returns to the position with the light-receiving surface 10 facing upward. good.

In addition to making the entire outer container 4 transparent,
Only a portion of the container 4 may be made transparent so that the light-receiving surface 10 can be seen through this transparent portion. Furthermore, as shown in FIG. 3, the outer container 4 may be formed into a cylindrical shape with a polyhedral outer surface to prevent rolling.

〔effect〕

As explained above, in this invention, the anode terminal 3 is provided at one end opening of the cylindrical outer container 4, and the cathode terminal 2 is provided at the other end opening, and the center of gravity of the storage battery 5 is located inside the outer container 4. The storage battery 5 is stored off to one side so that it is set at a position offset from the axis of the outer container 4, and in this stored state, the outer container 4 and the storage battery 5 are
A solar cell 6 for charging the storage battery 5 is arranged in the space created between the two, and at least a portion of the outer container 4 facing the light-receiving surface 10 of the solar cell 6 is made transparent to form one cylindrical battery 1. It is something to do. Therefore, when this battery 1 is used as a power source for various small electric devices, it is not necessary to incorporate a solar battery into the device separately from the storage battery as in the past, and the battery 1 can be placed in the only storage compartment. 1 only, and the wiring work between the conventional solar cell and storage battery compartment can be completely omitted.
This type of small electric device with a built-in storage battery that uses a solar cell as a charging source can also be assembled and structured easily. Also, when charging, this cylindrical battery 1
You only need to place it in a place exposed to direct sunlight.
It is possible to prevent small electrical equipment from deteriorating due to ultraviolet rays and extend its lifespan.

In particular, the outer container 4 is formed into a cylindrical shape, and the storage batteries 5 are housed therein in an unbalanced arrangement, and the solar cells are efficiently placed in the space between the outer container 4 and the outer container 4 created by the offset arrangement. Since it can be stored well, it can be made into the same shape as JIS and other standards, and can be loaded and used as is in place of dry batteries in ordinary small electrical equipment.Moreover, it has no self-righting action due to the imbalance described above. Due to the specific relationship with the direction of the light-receiving surface of the solar cell, during charging, simply placing the solar cell at random will cause the light-receiving surface to face upward, increasing light-receiving efficiency, that is, charging efficiency.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a cylindrical battery according to this invention.
FIG. 2 is a cross-sectional view, and FIG. 3 is a cross-sectional view showing another modified embodiment of the cylindrical battery according to this invention. 2... Cathode terminal, 3... Anode terminal, 4... Outer container, 5... Storage battery, 6... Solar cell, 10...
Light receiving surface.

Claims (1)

[Scope of claims for utility model registration] (1) An anode terminal 3 is provided at one end opening of the cylindrical outer container 4.
A cathode terminal 2 is provided at the opening at the other end, and the center of gravity of the storage battery 5 is located inside the outer container 4.
A solar cell that stores a storage battery 5 in a biased position so as to be set at a position offset from the axis of the outer container 4, and charges the storage battery 5 in a space created between the outer container 4 and the storage battery 5 in this stored state. 6, and at least the portion of the outer container 4 facing the light-receiving surface 10 of the solar cell 6 is formed transparent. (2) The cylindrical battery according to claim 1, wherein the outer container 4 is formed in a cylindrical shape. (3) The cylindrical battery according to claim 1, wherein the outer surface of the outer container 4 is formed into a polyhedron. (4) The solar cell 6 and the storage battery 5 are integrally combined into one block, and the block is arranged so that the light-receiving surface 10 of the solar cell 6 faces upward when the outer container 4 is laid down. The cylindrical battery according to claim 1, which is supported in an outer container 4 so as to be able to rise freely. (5) The solar cell 6 and the storage battery 5 are fixed in the outer container 4, and the outer container 4 is configured to be able to be raised freely so that when the outer container 4 is laid down, the light-receiving surface 10 of the solar cell 6 faces upward. A cylindrical battery according to claim 1 of the claimed utility model registration.