JP2021145935A - Umbrella-shaped solar battery - Google Patents

Abstract

To provide a solar battery capable of being easily housed and carried.SOLUTION: An umbrella-shaped solar battery 1 includes: an umbrella body 10 that comprises at least a middle rod, an umbrella cloth 12, a plurality of main ribs 11a-h, and a labor assistant 14; a thin film-like photovoltaic power generation part 3 with bendability, which is arranged on the umbrella cloth; and a thin film-like power storage part 2 with bendability, which is arranged on the umbrella cloth and which rechargeably and dischargeably stores electric power generated by the photovoltaic power generation part. The photovoltaic power generation part and the power storage part are arranged in small portions 4 that are divided by the main ribs of the umbrella cloth.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to an umbrella-shaped solar battery that can be stored compactly and is easy to carry.

Conventionally, a solar battery including a solar panel and a storage battery is known. This is a portable device that supplies electric power generated by a solar panel and stored in a storage battery to an electronic device such as a smartphone connected to a power supply port and charges the electric device.

Since this solar battery is equipped with a solar panel, it can supply power to electronic devices such as smartphones even outdoors or in the event of a disaster. In addition, since the electric power generated by the solar panel is stored in the storage battery, it is possible to supply the electric power even in the rainy weather or at night.

Further, there is also known a solar cell parasol in which a flexible solar cell formed in a triangular or fan shape is arranged between the ribs of the sunshade (see, for example, Patent Document 1). This solar cell parasol has a storage battery built in the handle shaft (middle bar), and the electric power generated by the solar cell is stored.

Public Utility Model Gazette Hei 2-119016 Gazette

In the conventional solar battery, the electric power that can be generated by the solar panel is proportional to the area, so that there is a problem that the larger the power generation capacity, the larger the size and the bulky when stored. Then, there is a problem that it is difficult or inconvenient to carry.

Further, in the solar cell umbrella of Patent Document 1, there is a problem that a commercially available umbrella cannot be used because the storage battery is incorporated in the shaft (middle bar) portion. Further, in order to secure a certain capacity of the storage battery, it is necessary to make the shaft (middle bar) thicker, which causes a problem that the design is impaired.

This disclosure is made to solve the above-mentioned problems, and discloses an example of a solar battery that is easy to store and carry.

To achieve the above object, the present disclosure provides the following means.
The umbrella-shaped solar battery of the present disclosure includes a center rod, an umbrella base, an umbrella body having at least a plurality of ribs and a hand, and a thin film-shaped photovoltaic power generation device arranged on the umbrella ground and having flexibility. The photovoltaic power generation unit and the photovoltaic power generation unit are provided with a flexible thin-film storage unit that is arranged in the umbrella ground and that can charge and discharge the electric power generated by the photovoltaic power generation unit. The power storage unit is arranged in a booth partitioned by the ribs of the umbrella ground.

According to the umbrella-shaped solar battery of the present disclosure, a flexible thin-film photovoltaic power generation unit and a power storage unit are arranged in a booth portion partitioned by a rib. For this reason, when an umbrella-shaped solar battery is not used, it can be stored compactly by wrapping the umbrella cloth (umbrella shaft) around the center rod in the same way as a normal umbrella, and it is easy to carry. be. Further, since it is not necessary to provide the power storage unit on the center rod or the hand (handle) part, the design of the umbrella body is not impaired, and a commercially available umbrella can be used.

In the above, the photovoltaic power generation unit and the power storage unit are arranged in the region between the ribs that partition the booth and the center line at the same distance as each of the ribs that partition the booth. There is.

By doing so, when the umbrella land is folded, the solar power generation unit and the power storage unit do not interfere with the folding. In addition, it is possible to reduce the load applied to the photovoltaic power generation unit and the power storage unit when the umbrella ground is folded.

In the above, the power storage unit is arranged in a booth different from the booth in which the solar power generation unit is arranged.

By doing so, it is possible to secure a distance between the photovoltaic power generation unit and the power storage unit. Therefore, it is possible to prevent unintended and unnecessary electrical contact between the photovoltaic power generation unit and the power storage unit.

In the above, the power storage unit is covered with a sheet material having waterproof and insulating properties.

By doing so, it is possible to prevent the ingress of a liquid such as water and an unintended short circuit with an external conductive portion.

In the above, the power supply unit which is arranged at hand and outputs at least one of the electric power generated by the solar power generation unit and the electric power stored in the power storage unit to the outside is provided.

By doing so, it is possible to supply electric power to, for example, an external electronic device simply by connecting a cable or the like to the power feeding unit.

According to the umbrella-shaped solar battery of the present disclosure, there is an effect that a solar battery that can be housed compactly and is easy to carry can be provided.

It is a figure explaining the appearance of an umbrella-shaped solar battery. It is a figure explaining the appearance of the umbrella-shaped solar battery seen from the upper side. It is a figure explaining the state which the umbrella-shaped solar battery was seen from the middle bar side. It is a figure explaining the hand of an umbrella-shaped solar battery. It is a block diagram explaining an umbrella-shaped solar battery.

The umbrella-shaped solar battery 1 according to the embodiment of the present disclosure will be described with reference to FIGS. 1 to 5. In the following description, the front-back, left-right, and up-down directions are the directions shown in the drawings unless otherwise specified.

In addition, the arrows indicating the directions and diagonal lines attached to each figure are described in order to make it easier to understand the relationship between each figure and the shape of each member or part. Therefore, the present disclosure is not limited to the direction attached to each figure. The shaded view does not necessarily indicate a cross-sectional view.

1. 1. Description of Configuration The umbrella-shaped solar battery 1 according to the present embodiment is mainly composed of an umbrella body 10, a power storage unit 2, a photovoltaic power generation unit 3, and a power supply unit 6.

The umbrella body 10 is a known umbrella mainly provided with ribs 11a to 11h, an umbrella base 12, a middle rod 13, and a hand 14. In the present embodiment, the umbrella main body 10 will be described by applying it to an example of a known rain umbrella, but a parasol or other types of known umbrellas may be used, and the description is particularly limited. The umbrella body 10 also has other configurations that a known umbrella usually has.

The hand 14 is a part of a handle held by the user. The ribs 11a to 11h are portions to which the umbrella base 12, which is a cloth that blocks rain and sunlight, is fixed, and is a portion that serves as the framework of the umbrella. The umbrella base 12 is fixed to the ribs 11a to 11h in a state where it can be folded during storage or the like. Hereinafter, the ribs 11a to 11h will be collectively referred to as “ribs 11”.

In the present embodiment, the umbrella main body 10 is applied to an example in which eight ribs 11 of the ribs 11a to 11h are provided, and the following description will be given, but the number of ribs 11 is not limited to this. The number of ribs 11 may be more than eight or less than eight.

The middle rod 13 is a portion of the shaft of an umbrella in which a hand 14 is provided at one end thereof and the end portion of the rib 11 is rotatably connected to the opposite end (see FIG. 3).

In the following description, the state when the umbrella body 10 is used, that is, the state in which the umbrella base 12 is expanded is also described as an "open state". Further, a state in which the umbrella body 10 is not used, that is, a state in which the umbrella base 12 is folded is also described as a “closed state”. Further, in the present embodiment, when the user holds the hand 14 and points to the umbrella body 10, the side of the umbrella base 12 facing the user is the "back side" and the opposite side (in the used state). The side facing the sky) is also referred to as the "front side".

<Explanation of the photovoltaic power generation department>
The photovoltaic power generation unit 3 is a portion where power generation is performed when light is irradiated, and is composed of a plurality of solar panels 31 and wiring 32. The solar panel 31 is a known solar cell that is formed in a thin film shape and has flexibility. The wiring 32 is a known flexible wiring material such as an FPC (flexible printed wiring board). For the wiring 32, another known wiring material having flexibility may be used.

Each solar panel 31 is electrically connected by a wiring 32 to form a circuit. Hereinafter, a circuit composed of a plurality of solar panels 31 connected by wiring 32 will also be referred to as a “power generation circuit 33”.

The solar panel 31 is arranged on the front surface of the booth 4, which is a part of the umbrella base 12 divided into substantially triangular shapes by the adjacent ribs 11. The wiring 32 is arranged on the back surface of the booth 4 (see FIGS. 1 and 2). That is, the solar panel 31 and the wiring 32 are electrically connected to each other through the umbrella base 12. The portion of the booth 4 where the solar panel 31 and the wiring 32 are arranged is the solar power generation unit 3.

In the present embodiment, the solar panel 31 is applied to an example in which the solar panel 31 is arranged between the rib 11c and the rib 11d, between the rib 11e and the rib 11f, and in the booth 4 between the rib 11g and the rib 11h, respectively. Then, the following explanation will be given. That is, the following description is applied to an example in which the solar power generation unit 3 is provided in the booths 4 partitioned by the ribs 11c and 11d, the ribs 11e and 11f, and the ribs 11g and 11h, respectively. conduct.

Each solar panel 31 is arranged so as not to straddle the center line C of the booth 4. That is, the solar panel 31 is arranged in the area between the center line C and the ribs 11 on both sides of the booth 4 (see FIG. 2).

Here, the center line C is a straight line on the booth 4 at the same distance from each of the ribs 11 on both sides of the booth 4. In other words, the center line C is a straight line extending from the portion where the rib 11 and the middle rod 13 are connected to the portion on the booth 4 at the same distance from each of the ribs 11 on both sides of the booth 4 in the direction in which the rib 11 extends. Is. In other words, the center line C is a straight line that divides the angle of the corner portion on the middle bar 13 side formed by the ribs 11 on both sides of the booth 4 into substantially half.

Each surface of the solar panel 31 and the wiring 32 on the side opposite to the umbrella base 12 is sealed with a sheet material 7 (not shown), which is a known sheet-like material having insulation and waterproofness. It is covered as if it were. That is, the solar panel 31 and the wiring 32 are arranged so as to be sandwiched between the umbrella base 12 and the sheet material 7, respectively.

<Explanation of power storage unit>
The power storage unit 2 is a part that stores the electric power generated by the solar power generation unit 3 so that it can be charged and discharged. In the present embodiment, the power storage unit 2 is composed of a plurality of storage batteries 21 and wiring 22 for electrically connecting them.

The storage battery 21 is a known battery that is formed in a thin film shape and has flexibility. In the present embodiment, the storage battery 21 will be described by applying it to an example of a thin film lithium secondary battery, but another known battery formed in a thin film shape and having flexibility may be used. The wiring 22 is a known flexible wiring material such as an FPC (flexible printed wiring board). For the wiring 22, another known wiring material having flexibility may be used.

Each storage battery 21 is arranged on the back surface of the booth 4, and is electrically connected by a wiring 22 similarly arranged on the back side of the booth 4 to form a circuit. Hereinafter, a circuit composed of a plurality of storage batteries 21 connected by wiring 22 will also be referred to as a “storage circuit 23”.

In the present embodiment, the storage battery 21 is applied to an example in which the storage battery 21 is arranged in the booth 4 between the ribs 11a and 11b, and the following description will be given. That is, the following description will be given by applying to an example in which the storage battery 21 is provided in the booth 4, which is a part of the umbrella ground 12 partitioned by the ribs 11a and 11b.

Similar to the above-mentioned solar panel 31, the storage batteries 21 are arranged so as not to straddle the center line C of the booths 4 in which they are arranged (see FIG. 2). That is, the storage battery 21 is arranged in the area between the center line C and the ribs 11 on both sides of the booth 4.

In the present embodiment, the storage battery 21 and the solar panel 31 are not arranged in the booth 4 adjacent to the booth 4 in which the power storage unit 2 and the solar power generation unit 3 are arranged. That is, each of the booths 4 between the ribs 11b and 11c, between the ribs 11d and 11e, between the ribs 11f and 11g, and between the ribs 11 and 11a is the storage battery 21 and the solar panel. The following description will be given by applying to an example in which the blank portion 5 in which 31 is not arranged is used.

The storage battery 21 and the wiring 22 are covered on the side opposite to the umbrella base 12 so as to be hermetically sealed with a sheet material 7 (not shown) having insulating and waterproof properties. That is, the storage battery 21 and the wiring 22 are arranged so as to be sandwiched between the umbrella base 12 and the sheet material 7, respectively, to prevent liquids such as rainwater from entering from the outside and to be an external conductive member. Contact with is prevented.

<Explanation at hand>
The power supply unit 6 is a portion for outputting the electric power generated by the solar power generation unit 3 or the electric power stored in the power storage unit 2, and is a connector to which an external device to which the electric power is supplied is connected. .. In the present embodiment, the power feeding unit 6 is applied to an example of a known USB port provided in the lower portion of the hand 14, and the following description will be given (see FIG. 4).

The power feeding unit 6 may be another known connector to which an external device can be connected. Further, the power feeding unit 6 may be provided in a portion different from the above.

The power storage circuit 23 is electrically connected to the DC / DC converter 17 via a wiring 18a which is a known electric wire inserted inside the middle rod 13 (see FIG. 5). The DC / DC converter 17 is a known electronic component that converts the output from the power storage circuit 23 and the power generation circuit 33 into a desired voltage and outputs the output. The output end of the DC / DC converter 17 is connected to the power feeding unit 6.

The power generation circuit 33 is connected to the DC / DC converter 17 in parallel with the power storage circuit 23 via the DC / DC converter 15 and the diode 16 (see FIG. 5). The power generation circuit 33 and the DC / DC converter 15 are electrically connected to each other via a wiring 18b, which is a known electric wire, inserted inside the middle rod 13.

The DC / DC converter 15 is a known electronic component that converts the output from the power generation circuit 33 into a voltage that can be input to the power storage circuit 23 and outputs the output. Further, the diode 16 is a known electronic component for preventing reverse tide from flowing an unnecessary current into the power storage circuit 23 from the power generation circuit 33 and other parts.

In this embodiment, the DC / DC converter 15, the diode 16, and the DC / DC converter 17 will be described by applying them to an example provided inside the hand 14, but they are provided in other places. May be good.

2. Description of Action Next, the action of the umbrella-shaped solar battery 1 configured as described above will be described according to its usage.

When the user spreads the umbrella body 10 and arranges the photovoltaic power generation unit 3 in the direction of light in order to generate power by the photovoltaic power generation unit 3, the solar panel 31 generates electricity. That is, when light is applied to the portion of the front surface of the umbrella base 12 on which the solar panel 31 is arranged, power is generated, and the power is output from the solar panel 31.

The electric power generated by the photovoltaic power generation unit 3 is converted into a voltage that can be input to the power storage circuit 23 by the DC / DC converter 15, and is input to the power storage circuit 23. That is, it is stored in the storage battery 21.

When the user connects the power cable to the power supply unit 6 in order to charge the electronic device such as his / her own smartphone, power is supplied to the connected electronic device. Specifically, when the solar power generation unit 3 is irradiated with sufficient light and sufficient power is output from the solar panel 31, the power generation circuit 33 transmits the connected electronic device. Power is supplied. That is, the output from the power generation circuit 33 is converted into a predetermined voltage by the DC / DC converter 17, and is output from the power feeding unit 6. Alternatively, depending on the power generation status of the solar panel 31, the power required for charging the electronic devices connected from the power generation circuit 33 and the power storage circuit 23 is supplied.

When the photovoltaic power generation unit 3 is not sufficiently irradiated with light and sufficient power is not output from the solar panel 31, the connected electronic device is required to be charged by the power storage circuit 23. Power is supplied. That is, the output from the power generation circuit 33 is converted into a predetermined voltage by the DC / DC converter 17, and is output from the power feeding unit 6.

After using the umbrella-shaped solar battery 1, the umbrella body 10 is closed in the same manner as when the known umbrella is closed. That is, while folding the booth 4 in half along each center line C, the umbrella body 10 is closed, and the booth 4 folded in half is wound around the middle rod 13 to store the umbrella body 10.

According to the umbrella-shaped solar battery 1 configured as described above, the photovoltaic power generation unit 3 and the power storage unit 2 are arranged in the booths 4 partitioned by the ribs 11, respectively. Therefore, when the umbrella-shaped solar battery 1 is not used, the umbrella base 12 can be wrapped around the middle rod 13 and stored compactly like a normal umbrella, and the umbrella can be easily carried.

Further, a flexible thin-film solar power generation unit 3 and a power storage unit 2 are arranged on the umbrella base 12. Therefore, it is not necessary to provide a storage battery for storing the electric power generated by the solar panel 31 on the center rod 13 (umbrella shaft) or the hand (handle), and the design of the umbrella body 10 and the umbrella can be used. Function is not impaired. Further, a commercially available umbrella can be used as it is as the umbrella body 10. That is, an inexpensive umbrella-shaped solar battery 1 can be easily manufactured.

Further, the solar power generation unit 3 and the power storage unit 2 are arranged in an area between the ribs 11 on both sides of the booth 4 and the center line C at the same distance from the respective ribs 11. That is, the photovoltaic power generation unit 3 and the power storage unit 2 are arranged so as not to straddle the center line C of the booth 4.

Therefore, when the umbrella ground 12 is folded, the solar power generation unit and the power storage unit do not interfere with the folding. That is, since the solar power generation unit 3 and the power storage unit 2 are not arranged at the center line C of the booth 4 that is folded in half when the umbrella base 12 is folded, the portion of the booth 4 of the umbrella base 12 It can be easily folded. Further, by folding, it is possible to prevent an excessive load from being applied to the photovoltaic power generation unit 3 and the power storage unit 2.

The power storage unit 2 is arranged in the booth 4 at a position different from the booth 4 in which the solar power generation unit 3 is arranged. Therefore, the physical distance between the power storage circuit 23 and the power generation circuit 33 can be secured. That is, the storage battery 21, the wiring 22, the solar panel 31, and the wiring 32 are arranged at a certain distance from each other. Therefore, for example, even if the insulation of the storage battery 21 or the solar panel 31 is defective due to deterioration due to use, an unintended electrical short circuit between the power storage circuit 23 and the power generation circuit 33 occurs. Can be prevented.

Further, the power storage unit 2 is covered with a sheet material 7 having waterproof and insulating properties. Therefore, it is possible to prevent the ingress of a liquid such as water and an unintended short circuit with an external conductive portion.

Further, the solar power generation unit 3, the wiring 22, and the wiring 32 are also covered with the sheet material 7 having waterproofness and edge property. Therefore, it is possible to prevent the ingress of a liquid such as water and an unintended short circuit with an external conductive portion.

A power supply unit 6 for outputting electric power to the connected device is provided at hand 14. Therefore, electric power can be supplied to an external electronic device or the like simply by connecting a cable or the like to the power feeding unit 6.

The power storage circuit 23 and the power generation circuit 33 are connected in parallel to the power supply unit 6. Therefore, when the light emitted to the photovoltaic power generation unit 3 becomes weak, that is, when the output of the electric power by the solar panel 31 decreases, the electric power stored in the photovoltaic power generation unit 2 is supplied. That is, stable power can be supplied regardless of the condition of the irradiated light. In addition, electric power can be supplied even at night or in rainy weather.

A blank portion 5 in which the storage battery 21 and the solar panel 31 are not arranged is provided in the booth 4 adjacent to the power storage unit 2 and the solar power generation unit 3. Therefore, when the umbrella-shaped solar battery 1 is finished in use, folded, and the umbrella base 12 is wound around the center rod 13, the winding work can be easily performed. In addition, it is possible to prevent the wrapped umbrella base 12 from becoming bulky and obstructive.

The power storage unit 2, the wiring 22, and the wiring 32 extending are arranged on the back side of the umbrella base 12. That is, the portion other than the solar panel 31 is arranged on the back side of the umbrella base 12. Therefore, the risk that these members are exposed to rain or the like and liquid or the like infiltrates is reduced. In addition, deterioration of the member due to exposure to direct sunlight or the like can be prevented.

The technical scope of the present disclosure is not limited to the above-described embodiment, and various changes can be made without departing from the technical purpose.
For example, in the above embodiment, the power storage unit 2 and the solar power generation unit 3 have been described by applying them to an example in which they are arranged in different booths 4. On the other hand, the power storage unit 2 and the solar power generation unit 3 may be arranged in the same booth 4. For example, the power storage unit 2 is arranged in the region between one rib 11 and the center line C that divides the booth 4, and the photovoltaic power generation unit 3 is arranged in the region between the other rib 11 and the center line C. It may be configured. Alternatively, the power storage unit 2 may be arranged in the upper region of the booth 4, and the solar power generation unit 3 may be arranged in the lower region.

Further, in the above embodiment, the description has been made by applying the example in which the part of the booth 4 adjacent to the power storage unit 2 and the solar power generation unit 3 is the blank part 5, but such a blank part 5 has been described. It may be configured not to provide. For example, all the booths 4 may be provided with a power storage unit 2 and a solar power generation unit 3.

In this way, it is possible to provide the umbrella-shaped solar battery 1 capable of generating more electric power or storing more electric power. Further, for example, the solar power generation unit 3 may be continuously provided in the adjacent booths 4. In this way, all the solar power generation units 3 can be directed in the light irradiation direction, so that the umbrella-shaped solar battery 1 with higher power generation efficiency can be provided.

Further, for example, the present disclosure is not limited to the one applied to the above-described embodiment, and the present disclosure may be applied to an embodiment in which these embodiments are appropriately combined, and the present invention is not particularly limited.

1 ... Umbrella-shaped solar battery 2 ... Power storage 3 ... Solar power generation 4 ... Booth 5 ... Blank 6 ... Power supply 7 ... Sheet material 10 ... Umbrella body 11 ... Rib 12 ... Umbrella 13 ... Middle bar 14 ... Hand 15 , 17 ... DC / DC converter 16 ... Diode 18a, 18b, 22, 32 ... Wiring 21 ... Storage battery 23 ... Power storage circuit 31 ... Solar panel 33 ... Power generation circuit C ... Center line

Claims (5)

An umbrella body with at least a middle bar, an umbrella cloth, multiple ribs, and a hand,
A thin-film photovoltaic power generation unit that is placed on the umbrella ground and has flexibility,
It is provided with a thin film-shaped power storage unit having flexibility, which is arranged in the umbrella ground and can charge and discharge the electric power generated by the solar power generation unit.
The solar power generation unit and the power storage unit are arranged in a booth partitioned by the ribs of the umbrella land.
Umbrella-shaped solar battery. The solar power generation unit and the power storage unit
It is located in the area between the ribs that partition the booth and the centerline at the same distance as each of the ribs that partition the booth.
The umbrella-shaped solar battery according to claim 1. The power storage unit
It is arranged in a booth different from the booth in which the solar power generation unit is arranged.
The umbrella-shaped solar battery according to claim 1 or 2. The power storage unit
Covered with a waterproof and insulating sheet material,
The umbrella-shaped solar battery according to any one of claims 1 to 3. It is provided with a power supply unit which is arranged at hand and outputs at least one of the electric power generated by the solar power generation unit and the electric power stored in the power storage unit to the outside.
The umbrella-shaped solar battery according to any one of claims 1 to 4.

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