Charging power supply device

Abstract

To provide a charging power supply device capable of improving convenience.SOLUTION: A charging power supply device 1 comprises: a battery 13; a power feeding part 3 for supplying power from the battery 13 to an external device 4; and a laminated body 2 laminated with a plurality of sheet-shaped perovskite solar batteries (solar batteries 22). The laminated body 2 is cylindrically shaped. The battery 13 is placed in an interior space of the laminated body 2 and is charged with power generated by the perovskite solar battery.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a charging and power supply device. [Background technology]

[0002] The charging and power supply device described in Patent Document 1 includes a battery, an input terminal, and an output terminal. The battery receives power from an external power source (e.g., a commercial power source) via the input terminal and is charged by the power. The power output from the battery is supplied to an external device via the output terminal. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-191728 Summary of the Invention [Problem to be solved by the invention]

[0004] The charging and power supply device described in Patent Document 1 is inconvenient because it cannot charge the battery in places where there is no external power source.

[0005] An object of the present disclosure is to provide a charging and power supply device that can improve convenience. [Means for solving the problem]

[0006] The charging and power supply device according to the present disclosure is a charging and power supply device comprising a battery and a power supply unit for supplying power from the battery to an external device, and is characterized in that it comprises a stack of multiple sheet-like perovskite solar cells, the stack being cylindrical, and the battery is disposed in the internal space of the stack and is charged by power generated by the perovskite solar cells.

[0007] In the present disclosure, a battery is charged by the power generated by the perovskite solar cell that constitutes the laminate. Perovskite solar cells have the advantage of being able to generate power even in weak indoor light. Therefore, the battery can be charged regardless of the presence or absence of an external power source, improving convenience. The power of the battery is supplied to an external device via a power supply unit. The laminate is cylindrical. Because perovskite solar cells are flexible, a cylindrical laminate can be easily obtained, for example, by bending a flat laminate in which multiple sheet-like perovskite solar cells are stacked.

[0008] The battery is disposed in the internal space of the stack, which allows the charging and power supply device to be configured compactly by effectively utilizing the internal space of the stack. Because perovskite solar cells are translucent, light that passes through one of the multiple perovskite solar cells that make up the stack can be received by the other perovskite solar cells to generate electricity. By stacking perovskite solar cells, multiple perovskite solar cells can be arranged compactly.

[0009] The charging and power supply device according to the present disclosure further includes a base, the laminate stands up from the base with the axial length direction of the laminate facing up and down, and the power supply unit has a terminal for supplying power to the external device via a wired connection, the terminal being arranged on the base.

[0010] In the present disclosure, the laminated body rises from the base. Since the axial direction of the laminated body faces up and down, the entire outer peripheral surface of the laminated body can be made to receive light. This increases the light-receiving area and the amount of power generation. For example, the user can place the base on a table, floor, or the like, and the charging and power supply device can be stably installed in any location. The power supply unit has a terminal, and the charging and power supply device and the external device are connected by wire via the terminal, so that the power of the battery is supplied to the external device via the power supply unit. Since the terminals are arranged on the base, the terminals do not interfere with the laminate, and the cables connecting the terminals to external devices are also unlikely to interfere with the laminate.

[0011] The charging and power supply device according to the present disclosure further includes a power receiving unit for receiving power from an external power source, and the battery is charged by the power received via the power receiving unit.

[0012] In the present disclosure, power from an external power source is received via a power receiving unit, and a battery is charged with the power received via the power receiving unit. For example, if the amount of power generated by the perovskite solar cell is insufficient due to insufficient light, the battery can be charged using an external power source, further improving convenience. [Effects of the Invention]

[0013] The charging and power supply device of the present disclosure can improve convenience. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a perspective view that simply shows the appearance of a charging and power supply device according to a first embodiment. [Figure 2] 2 is a cross-sectional view showing a main part of the charging and power supply device; FIG. [Figure 3] 2 is a block diagram showing a main part of the charging and power supply device. FIG. [Figure 4] FIG. 10 is a block diagram showing a main part of a charging and power supply device according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, embodiments of the present disclosure will be described.

[0016] Embodiment 1. FIG. 1 is a perspective view that simply shows the appearance of a charging and power supply device according to a first embodiment. In the figure, reference numeral 1 denotes a charging and power supply device, and the charging and power supply device 1 is provided with a base 11 . FIG. 2 is a cross-sectional view showing a schematic view of the main part of the charging and power supply device 1. As shown in FIG. 1 and 2, base 11 is a short cylindrical housing. A user places base 11 on a table, floor, or the like with one end surface of base 11 facing downward. As a result, charging and power supply device 1 can be stably installed in any location.

[0017] FIG. 3 is a block diagram showing the main parts of the charging and power supply device 1. As shown in FIG. The charging and power supply device 1 further includes a laminated body 2. As shown in FIGS. 2 and 3, the laminate 2 includes a substrate 21 and a plurality of solar cells 22. The substrate 21 has insulating properties. One surface of the substrate 21 has light reflectivity. Hereinafter, the light reflecting surface of the substrate 21 will be referred to as a reflective surface.

[0018] Each solar cell 22 is a perovskite solar cell, has a sheet shape, and is flexible and optically transparent. The solar cells 22 are thinner than the substrate 21, but are shown exaggerated in Figure 2 for ease of viewing. The solar cells 22 receive light and generate DC power. The solar cells 22 are connected in series with each other, for example. When there are two solar cells 22, one solar cell 22 is stacked on the substrate 21 so as to completely cover the reflective surface of the substrate 21, and the other solar cell 22 is stacked on the one solar cell 22 so as to completely cover the other solar cell 22. The number of solar cells 22 may be three or more. The laminate 2 may not have a substrate 21.

[0019] The laminate 2 is formed in a cylindrical shape with the substrate 21 positioned inside. For example, a cylindrical laminate 2 can be easily obtained by bending a flat laminate in which a plurality of solar cells 22 are laminated on a flexible rectangular substrate 21. Alternatively, a cylindrical laminate 2 can be easily obtained by stacking a plurality of solar cells 22 on the outer peripheral surface of the substrate 21 formed in a cylindrical shape. 1 and 2, the laminate 2 stands upright from the upper surface of the base 11 with its axial direction facing up and down. The lower end of the laminate 2 is fixed to the base 11. The opening on the lower side of the laminate 2 communicates with the internal space of the base 11. The length of the laminate 2 in the axial direction is greater than the length of the base 11 in the axial direction.

[0020] The charging and power supply device 1 further includes a cover 12 and a battery 13 . The lid 12 is disk-shaped and closes the upper opening of the stack 2. The battery 13 and the solar cell 22 are connected in series via a conductor (not shown). The battery 13 is charged by the power generated by the solar cell 22. The battery 13 is disposed in the internal space of the laminate 2. For example, the battery 13 is columnar and attached to a support (not shown) fixed to the inner surface of the base 11 or the inner circumferential surface of the laminate 2 with its axial length oriented vertically. Note that a part of the battery 13 (for example, the lower end) may be located in the internal space of the base 11.

[0021] 3, the charging and power supply device 1 further includes a power supply unit 3. The power supply unit 3 includes terminals 31 and 32 for supplying power to an external device 4 via a wired connection. The external device 4 is a smartphone, a tablet, or the like. The terminal 31 is for supplying DC power to the external device 4, and is, for example, a USB terminal. The external device 4 is electrically connected to the battery 13 via the terminal 31 and is supplied with power. Note that the power supply unit 3 may further include a power conversion unit including, for example, a DC / DC converter, and may be configured to boost or lower the power of the battery 13 before supplying it to the external device 4.

[0022] The terminal 32 is an object for supplying AC power to the external device 4, and is, for example, a power outlet. The power supply unit 3 further includes a power conversion unit 33 including, for example, a DC / AC inverter, which converts DC power from the battery 13 into AC power. The battery 13 is also used as a power source for the power conversion unit 33. The external device 4 is electrically connected to the battery 13 via the power conversion unit 33 and the terminal 32, and receives power. The power conversion unit 33 is disposed, for example, in the internal space of the base 11 (see FIG. 2).

[0023] The terminals 31 and 32 are disposed on the upper surface of the base 11 (see FIGS. 1 and 2). The terminals 31 and 32 may also be disposed on the peripheral surface of the base 11. The terminals 31 and 32 are disposed on the base 11 and do not interfere with the laminate 2. Furthermore, cables connecting the terminals 31 and 32 to the external device 4 are unlikely to interfere with the laminate 2. A terminal provided on the external device 4 may be directly connected to the terminal 31 or the terminal 32 . It is desirable to have a plurality of terminals 31 and 32. Power supply unit 3 may be configured to have only one of terminals 31 and 32.

[0024] When using the charging and power supply device 1, it is necessary to charge the battery 13. The user places the charging and power supply device 1 so that light is incident on the outer peripheral surface of the laminate 2. The light incident on the laminate 2 is preferably visible light, but ultraviolet or infrared light may also be used.

[0025] When light is incident on the outer peripheral surface of the laminate 2, the light is incident on the solar cell 22 on the outer peripheral surface side of the laminate 2, and the light that passes through this solar cell 22 is incident on the solar cell 22 on the inner peripheral surface side of the laminate 2. The light that passes through both solar cells 22 is reflected by the reflective surface of the substrate 21. The reflected light is incident on the solar cell 22 again. The laminate 2 stands upright from the base 11. The axial direction of the laminate 2 faces up and down, so that the entire outer peripheral surface of the laminate 2 can receive light. Therefore, the light-receiving area can be increased, and the amount of power generation can be increased.

[0026] According to the charging and power supply device 1 described above, the battery 13 is charged by the power generated by the solar cells 22 constituting the laminated body 2. The solar cells 22 have the advantage of being able to generate power even in weak indoor light. Therefore, the battery 13 can be charged regardless of the presence or absence of an external power source, thereby improving convenience. The power of the battery 13 is supplied to the external device 4 via the power supply unit 3 .

[0027] The battery 13 is disposed in the internal space of the stack 2. That is, the internal space of the stack 2 can be effectively utilized to make the charging and power supply device 1 compact. Because the solar cells 22 are translucent, light that passes through one solar cell 22 among the multiple solar cells 22 that make up the laminate 2 can be received by the other solar cells 22 to generate electricity. By stacking the solar cells 22, the multiple solar cells 22 can be arranged compactly. Since the solar cell 22 is thin and light, the weight of the charging and power supply device 1 can be reduced.

[0028] The charging and power supply device 1 may have a configuration in which the cover 12 can be opened and closed and the battery 13 can be attached and detached. In this case, for example, when power is not being supplied to the external device 4, a spare battery 13 can be prepared by replacing the battery 13 in the stack 2 with an empty battery 13. If there is a spare battery 13, the battery 13 in the stack 2 can be replaced with the spare battery 13 when the remaining charge of the battery 13 in the stack 2 is low and the power generated by the solar cell 22 cannot charge the battery 13 sufficiently or in a short time. A laminate of perovskite solar cells may also be arranged on the top surface of the lid 12 or the outer peripheral surface of the base 11, and may be used to charge the battery 13.

[0029] The shape and dimensional ratio of each part of the charging and power supply device 1 are not limited to those shown in the drawings. For example, the shape of the base 11 is not limited to a short columnar shape, the shape of the laminated body 2 is not limited to a cylindrical shape, and the shape of the battery 13 is not limited to a columnar shape. The power supply unit 3 may be configured to supply power to the external device 4 wirelessly. The solar cells 22 or the battery 13 and the solar cell 22 may be connected in parallel to each other.

[0030] Embodiment 2. The charging and power supply device 1 of this embodiment is substantially the same as the charging and power supply device 1 of the first embodiment, except that it includes a power receiving unit 5, which will be described later. Below, differences from the first embodiment will be described, and other components that are the same as those in the first embodiment will be assigned the same reference numerals and descriptions thereof will be omitted.

[0031] FIG. 4 is a block diagram showing a main part of a charging and power supplying device 1 according to the second embodiment. The charging and power supply device 1 further includes a power receiving unit 5 for receiving power from an external power source 6. In this embodiment, the external power source 6 is a wireless power supply device, and has a power supply surface for supplying power by electromagnetic induction. The power receiving unit 5 is housed in a base 11. At least the bottom wall of the base 11 is made of a material that does not impede electromagnetic induction. When receiving wireless power from the external power source 6, the base 11 is placed on the power supply surface of the external power source 6.

[0032] The power receiving unit 5 includes a power receiving coil 51 and a power conversion unit 52. The power receiving coil 51 is disposed near the bottom wall of the base 11. The power receiving coil 51 is supplied with AC power wirelessly from the external power supply 6 by electromagnetic induction. The power conversion unit 52 includes, for example, an AC / DC converter. The AC power received by the power receiving coil 51 is converted into DC power by the power conversion unit 52 and then output to the battery 13. The battery 13 is charged by power received from the external power source 6 via the power receiving unit 5 .

[0033] According to the charging and power supply device 1 described above, when the amount of power generated by the solar cell 22 is insufficient due to insufficient light, for example, the external power source 6 can be used to charge the battery 13, further improving convenience. Wireless power supply from the external power source 6 to the power receiving unit 5 is not limited to that by electromagnetic induction. The external power source 6 is not limited to a wireless power supply device. The power receiving unit 5 may be configured to receive power from the external power source 6 (for example, a commercial power source) via a wired connection. In this case, the power receiving unit 5 has a power receiving terminal for connection to the external power source 6. It is desirable that the power receiving terminal of the power receiving unit 5 be disposed on the base 11.

[0034] The embodiments disclosed herein are to be considered as illustrative in all respects and not restrictive. The scope of the present invention is intended to include not only the above-mentioned meaning but also the meaning equivalent to the claims and all modifications within the scope of the claims. The constituent elements (technical features) disclosed in each embodiment can be combined with each other, and new technical features can be formed by such combinations. Furthermore, the independent and dependent claims described in the claims can be combined with each other in any and all combinations, regardless of the reference format. Furthermore, while the claims use a format in which a claim references two or more other claims (multiple claim format), this is not limited to this format. A multiple claim (multi-multi claim) that references at least one other multiple claim may also be used. [Explanation of symbols]

[0035] 1. Charging and power supply device 11 Pedestal 13 Battery 2. Laminate 22 Solar cells (perovskite solar cells) 3 Power supply unit Terminals 31 and 32 4 External equipment 5 Power receiving unit 6 External power supply

Claims

1. A battery, a power supply unit for supplying the power of the battery to an external device; A charging and power supply device comprising: The solar cell comprises a laminate in which a plurality of sheet-shaped perovskite solar cells are laminated, The laminate has a cylindrical shape, The battery is disposed in the internal space of the laminate and is charged by the power generated by the perovskite solar cell.

2. It also comes with a base, the laminate stands upright from the base with the axial direction of the laminate facing up and down, the power supply unit has a terminal for supplying power to the external device via a wired connection; 2. The charging and power supply device according to claim 1, wherein the terminal is disposed on the base.

3. further comprising a power receiving unit for receiving power from an external power source; 3. The charging and power supply device according to claim 1, wherein the battery is charged by the power received through the power receiving unit.

Images