JP7149596B2 - blind device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a blind device provided with a solar battery that is installed near a window or the like to generate power.

Conventionally, in a blind device (photovoltaic power generation device) having a plurality of slats (light shielding plates) arranged in the thickness direction and having thin-film solar cell modules attached to the slats, the electric power generated by the solar cell modules is It is being supplied to a commercial electric power system (see, for example, Patent Literature 1). According to such a blind device, it is possible to convert the energy of the sunlight irradiated to the solar cell module provided on the surface of each slat into electric power and use it effectively.

JP-A-2000-179914

In the blind device described above, a connection cable (power supply line) provided for connecting the solar cell modules attached to the slats to each other and supplying the power generated by each solar cell module to the commercial power system, It is unavoidable that the wire for adjusting the angle of each slat is exposed at a different position than the wire for adjusting the inclination angle of each slat, and the appearance of the blind device is spoiled.

SUMMARY OF THE INVENTION An object of the present invention is to provide a blind device that can effectively utilize power generated by a solar cell without spoiling the appearance of the blind device.

A blind device according to the present invention includes a plurality of slats provided with a solar battery and a secondary battery for temporarily storing power generated by the solar battery, and storing the power supplied from the secondary battery. a main battery, each of the slats has a connection portion for intermittently connecting the secondary battery and the main battery, and the connection portions of the adjacent slats are separated from each other in a conductive/broken state. and a conductive connection state in which they are in contact with each other.

According to this configuration, the power generated by the solar cell can be supplied to the secondary battery and temporarily stored when the secondary battery and the main battery are disconnected from each other. The connection cable for connecting the secondary battery and the main battery provided on each slat is not provided in a conspicuous position of the blind device, and the secondary battery and the main battery are changed to a conductive connection state as necessary. By doing so, the electric power stored in the secondary battery of each slat can be supplied to the main battery and used effectively.

The slats may be spaced apart from each other, and the slats may be moved closer to each other. It is preferable that the connecting portion is in the conductive connection state in the retracted position of each of the slats.

According to this configuration, when the slats are moved to the use position separated from each other by the retracting drive unit, the secondary battery and the main battery are in a state of continuity and interruption, and the energy of the sunlight radiating onto each slat is transferred from the sun. It is efficiently converted into electric power by the battery and stored in the secondary battery. On the other hand, when the slats are operated to the retracted positions in close proximity to each other by the retracting drive section, the secondary battery and the main battery are in a conductive connection state, and the electric power stored in the secondary battery of each slat is transferred to the main battery. supplied to and effectively used.

Furthermore, by changing the installation angle of each of the slats, one side of one slat and the other side of another slat adjacent to it can be moved to a translucent position separated from each other and closer to each other. and a tilt driving unit for displacing the light-blocking position of each of the slats, wherein the connecting portion is in the conductive state at the light-transmitting position of each slat, and the connecting portion is in the conductive connection at the light-blocking position of each slat. state.

According to this configuration, at the translucent position of each slat where the energy of the sunlight irradiating the solar cell is considered to be relatively small, the secondary cell and the main cell are in a state of continuity and interruption, and the solar cell generates power. The generated power is supplied to the secondary battery and temporarily stored. Then, when the tilt driving unit performs an operation to change the installation angle of each slat to a light shielding position where the energy of sunlight irradiating the solar cell is considered to be extremely large compared to the light transmitting position of each slat. , the secondary battery and the main battery are in a conductive connection state, and the electric power stored in the secondary battery is supplied to the main battery. As a result, the power stored in the secondary battery is prevented from becoming excessive, and the power supplied to the main battery can be effectively used as needed.

Furthermore, it is preferable that each of the slats is provided with a magnet for holding the connecting portion in the electrically connected state.

According to this configuration, in a retracted position or the like where the slats are close to each other, the conductive connection state of the connecting portions provided on the slats is stably maintained by the magnetic force of the magnet, and stored in the secondary battery of each slat. The generated power is supplied to the main battery and used effectively.

Each of the slats has a first slat with the secondary battery arranged on one end side and a second slat with the secondary battery arranged on the other end side, The slats and the second slats may be arranged alternately.

According to this configuration, there is an advantage that it is possible to effectively prevent unevenness in the weight balance and thickness of each slat.

Furthermore, a power supply unit that supplies power stored in the main battery to the outside may be further provided.

According to this configuration, the power stored in the main battery is supplied from the power supply unit to an external electric device or the like, so that the power can be effectively used.

According to the blind device of the present invention, it is possible to connect the secondary battery provided on each slat and the main battery of the blind device without providing an exposed connection cable in a conspicuous position. Electric power generated by the solar cell can be effectively used without spoiling the appearance.

1 is a perspective view showing an embodiment of a blind device according to the present invention; FIG. It is a side view which shows the state which installed each slat in the translucent position. It is a side view which shows the state which installed each slat in the light-shielding position. It is a side view which shows the state which installed each slat in the retracted position. It is a perspective view which shows the concrete structure of a slat. FIG. 4 is a cross-sectional view showing a conduction/interruption state of a connecting portion provided on each slat; FIG. 4 is a cross-sectional view showing a conductive connection state of connection portions provided on each slat; It is a circuit diagram which shows the electrical wiring of a blind apparatus. Fig. 2 is a circuit diagram showing another embodiment of a blind device; FIG. 10 is a cross-sectional view of a slat showing yet another embodiment of a blind device; FIG. 10 is a cross-sectional view of a slat showing yet another embodiment of a blind device;

Hereinafter, embodiments of the present invention will be described in detail based on the accompanying drawings, but the present invention is not limited to the forms shown in the accompanying drawings and includes all embodiments that satisfy the requirements described in the claims. . It should be noted that the same reference numerals in each figure indicate the same configuration, and the description thereof will be omitted.

As shown in FIGS. 1 to 4, the blind device 1 includes a head box 2 installed near a window or the like, and a plurality of blinds suspended from the head box 2 and installed horizontally at predetermined intervals. It comprises a slat 3, a bottom rail 4 arranged below it, and a main battery 5 for storing electric power supplied from a secondary battery, which will be described later, provided in each flat 3. The main battery 5 is arranged, for example, inside the head box 2 together with a diode 16 for preventing backflow.

The blind device 1 is provided with a conventionally well-known retractable driving section 7 having an operation cord 6 for raising and lowering each slat 3 . The storage drive unit 7 displaces the slats 3 between a use position in which the slats 3 are deployed vertically as shown in FIGS. 2 and 3, and a storage position in which the slats 3 are brought close to each other as shown in FIG. have a function.

As shown in FIG. 1, the blind device 1 is provided with a conventionally well-known tilt driving section 9 having an operation pole 8 for changing the installation angle of each slat 3 . The tilt drive unit 9 is arranged such that one side portion 31 of one slat 3 and the other side portion 32 of another slat 3 adjacent thereto are separated from each other as shown in FIG. , as shown in FIG.

As shown in FIG. 5, a sheet-like solar cell 10 made of amorphous silicon or the like is attached to the surface of the slat 3 located on the outdoor side in the light shielding position shown in FIG. In addition, a secondary battery 11 for temporarily storing the power generated by the solar cell 10 is provided at one end of each slat 3 in the longitudinal direction, and the power of the secondary battery 11 flows backward to the solar cell 10 side. A diode 12 for preventing backflow is provided to prevent backflow, and an electrode 18 is provided to intermittently connect adjacent slats 3 as will be described later.

As the secondary battery 11, various batteries such as a silver oxide battery, an alkaline battery, or a lithium battery can be used, but a compact button type battery is preferably used. As shown in FIGS. 6 and 7, for example, the secondary battery 11 is mounted on the slats 3a with the positive electrode exposed on the surface side of the slats 3a and the negative electrode exposed on the back surface side of the slats 3a. is fixed to The electrodes 18 are fixed to the slats 3a with their upper and lower surfaces exposed to the front and rear surfaces of the slats 3a. As will be described later, the positive and negative electrodes of the secondary battery 11 and the upper and lower surfaces of the electrode 18 constitute a connecting portion that intermittently connects the secondary battery 11 and the main battery 5 .

The solar cell 10, the secondary battery 11 and the diode 12 arranged on each slat 3 are electrically connected by a connection cable 14 as shown in FIG. As a result, power generated by the solar cell 10 is supplied to the secondary battery 11 via the diode 12 and temporarily stored.

A connecting portion 15a composed of the positive electrode of the secondary battery 11 arranged on the slat 3a positioned at the top in FIG. This connection line 17 is provided with a backflow prevention diode 16 that prevents current from flowing from the main battery 5 to the secondary battery 11 side of the slat 3a. A connection portion 18 a composed of the electrode 18 arranged on the uppermost slat 3 a is connected to the negative pole side of the main battery 5 via a connection line 19 .

As shown in FIG. 2, in the storage position where the adjacent slats 3 are separated from each other, as shown in FIG. 20a and the connecting portion 15b, which is the positive electrode of the secondary battery 11 arranged on the second slat 3b from the top, are spaced apart from each other to establish a state of interruption of conduction. As a result, the connection between the secondary battery 11 arranged on each slat 3a, 3b, .

On the other hand, as shown in FIG. 4, in the storage position where the adjacent slats 3 are close to each other, as shown in FIG. 20a and the connecting portion 15b of the slat 3b, which is the positive electrode of the secondary battery 11 arranged on the second slat 3b from the top, come into contact with each other to be in a conductive connection state.

As each slat 3 is displaced from the use position shown in FIG. 2 to the retracted position shown in FIG. 4, as shown in FIG. As shown in FIG. 7, the connecting portion 18a and the connecting portion 18b formed by the upper surface of the electrode 15 provided on the second-stage slat 3b are separated from each other. It changes to the contact connection state.

Similarly, a connecting portion 20b consisting of a negative electrode of the secondary battery 11 arranged on the second slat 3b from the top and a positive electrode of the secondary battery 11 arranged on the third slat 3 from the top. The connecting portions 15c, which are poles, change between a conducting and interrupting state in which they are separated from each other as shown in FIG. 6 and a conducting and connecting state in which they are in contact with each other as shown in FIG. In addition, a connecting portion 18b consisting of the lower surface of the electrode 15 arranged on the second slat 3b from the top and a connecting portion 18c consisting of the upper surface of the electrode 15 arranged on the third slat 3c from the top. , changes between the conduction/interruption state shown in FIG. 6 and the conduction/connection state shown in FIG.

As shown in FIG. 8, the connecting portion 18z provided on the lowermost slat 3z is connected via a connecting cable 21 to the connecting portion 20a, which is the negative pole of the secondary battery 11. As shown in FIG. . . 3z, the secondary batteries 11 arranged on the slats 3a, 3b . They are connected in series via lines, and the electric power stored in each secondary battery 11 is supplied to the main battery 5 and stored therein.

The electric power stored in the main battery 5 is supplied to, for example, an electric driving unit provided in the blind device 1 and used. In addition, by supplying electric power to an external electric device or the like through a power supply section 13 consisting of connectors provided on the positive pole side and the negative pole side of the main battery 5, the electric power stored in the main battery 5 is dissipated. Effectively used.

As described above, a plurality of slats 3 provided with the solar cells 10 and the secondary batteries 11 for temporarily storing the power generated by the solar cells 10, and the power supplied from the secondary batteries 11 of the respective slats 3 Each slat 3 is a blind device 1 equipped with a main battery 5 for storing electric power, and a connecting portion composed of a positive electrode and a negative electrode of the secondary battery 11 for intermittently connecting the secondary battery 11 and the main battery 5 . According to the configuration in which the connecting portions change between the conductive and interrupted state in which they are separated from each other and the conductive and connected state in which they are in contact with each other, the blind device 1 does not deteriorate the appearance of the blind device 1. The power stored in the secondary battery 11 can be supplied to the main battery 5 and used effectively.

That is, in the conventional device disclosed in Patent Document 1, connection cables for supplying power generated by the solar cells provided on adjacent slats to the commercial power system are provided on the sides of the slats and the like. This connection cable must be routed with a margin so that the conductive connection of each slat can be maintained regardless of whether each slat is in the use position or the retracted position. Therefore, when the slats are in the retracted position close to each other, it is inevitable that the connecting cables become slack and the external appearance is significantly deteriorated.

In contrast, in the above-described embodiment, each of the adjacent slats 3 is displaced from its spaced apart position of use, as shown in FIG. 2, to its retracted position, shown in FIG. The connection parts of the secondary battery 11 provided on the slats 3, which are composed of the positive and negative electrodes, etc., are configured to be changed between a conducting/interrupting state in which they are separated from each other and a conducting/connecting state in which they are in contact with each other. there is Therefore, each secondary battery 11 arranged on each slat 3 and the main battery 5 are switched from the continuity/interruption state to the continuity/connection state without providing a connection cable which deteriorates the appearance of the blind device 1.例文帳に追加be able to. Therefore, the power of the solar battery 10 stored in the secondary battery 11 can be effectively used by supplying the power of the solar battery 10 to the main battery 5 as needed while maintaining the appearance of the blind device 1 in good condition.

Moreover, when a connection cable is provided to electrically connect adjacent slats as in the conventional device, when cleaning the blind device, a cleaning tool or the like may get caught in the connection cable exposed to the outside, causing the connection to fail. There is a risk that the cable will break. On the other hand, if the secondary battery 11 of each slat 3 and the main battery 5 can be intermittently connected without providing a connection cable exposed to the outside as described above, the connection cable is broken. There is no problem such as

In the above-described embodiment, as shown in FIG. 8, an example has been described in which the secondary batteries 11 and the main battery 5 arranged on each slat 3 can be connected in series. The secondary battery 11 may be configured to be connectable in parallel with the main battery 5 . That is, as indicated by the dashed line J in FIG. 9, the connection portions 22a, 22b, . . . 23z located at the negative pole of each secondary battery 11 are intermittently connected, thereby connecting each secondary battery 11 to the main battery 5, respectively. It may be configured to be connected in parallel.

Further, in the above-described embodiment, the connecting portion provided on each slat 3 is configured to be switched between the conduction/interruption state and the conduction/interruption state in accordance with the operation of the storage drive section 7 . For this reason, when the slats 3 are separated from each other in the use position, the connection portions provided on the slats 3 are separated from each other so that the connection portions of the slats 3 are separated from each other so that the solar cells 10 of the respective slats 3 are irradiated with the sunlight. can be effectively utilized and stored in the secondary battery 11 . On the other hand, in the retracted position of each slat 3 where it is difficult to generate power by the solar cell 10, the connecting portions provided on the slats 3 are changed to a conductive connection state in which they are in contact with each other, thereby storing power in the secondary battery 11. The generated power can be supplied to the main battery 5 and used effectively.

Instead of the above-described embodiment configured to switch the connection portion provided on each slat 3 between the conduction/interruption state and the conduction/interruption state in accordance with the operation of the storage drive unit 7, or in addition to this configuration, each slat 3 In response to the operation of the tilt drive unit 9 that changes the installation angle of the slats 3, the connecting portions provided on the adjacent slats 3 are changed to a conductive and interrupted state in which they are separated from each other and a conductive connection state in which they are in contact with each other. can be

That is, as shown in FIG. 2, each slat 3 is provided at a translucent position where one side portion 31 of one slat 3 and the other side portion 32 of another slat 3 adjacent thereto are separated from each other. 3, the tilt drive unit 9 performs an operation to change the installation angle of each slat 3 from the conduction/interruption state in which the connection portions (not shown) are spaced apart from each other. When the one side portion 31 and the other side portion 32 of the other slat 3 adjacent thereto are displaced to the mutually adjacent light shielding positions, the connection portions are brought into contact with each other to be in a conductive connection state. can be configured to

According to this configuration, the secondary battery 11 and the main battery 5 are in a conduction/interruption state at the light-transmitting positions of the slats 3 where the energy of the sunlight irradiating the solar cells 10 is considered to be less than that at the light-shielding positions. As a result, the power generated by the solar cell 10 is temporarily stored in the secondary battery 11 . When the energy of the sunlight irradiating the solar cell 10 is larger than that of the light transmitting position of each slat 3, when the tilt driving unit 9 performs an operation to change each slat 3 to the light blocking position, each slat 3 is changed to a conductive connection state, and the electric power stored in the secondary battery 11 is supplied to the main battery 5 . As a result, the power stored in the secondary battery 11 is prevented from becoming excessive, and the power supplied to the main battery 5 can be effectively used as needed.

Further, as shown in FIG. 10, a magnet 24 may be provided to hold the connecting portions arranged on the slats 3a, 3b, . . . 3z in an electrically connected state. For example, a disc-shaped magnet 24 made of a permanent magnetic material or the like may be arranged below the secondary battery 11 made of an iron button battery or the like provided on each of the slats 3a, 3b, . . . 3z. The negative electrode of the secondary battery 11 arranged on the lowermost slat 3z and the electrode 15 are connected via a connection cable 21. As shown in FIG.

. . 3z are close to each other, the lower surface of the flats 3a, 3b, . . . The slats 3a, 3b, . The connecting portion made up of the negative electrode and the connecting portion made up of the upper and lower surfaces of the electrode 15 may be held in a conductive connection state.

According to this configuration, when the slats 3a, 3b, . be able to. Also, when displacing the slats 3a, 3b, .

Instead of the above-described embodiment in which the magnets 24 are arranged below the secondary batteries 11 provided on the slats 3a, 3b, . It may be arranged in a position close to the position. By attracting the south pole of the magnet provided on one slat 3 and the north pole of the magnet provided on the other adjacent slat 3, the slats 3 are brought close to each other to the retracted position. In addition to holding the secondary battery 11, the connecting portion composed of the positive electrode, the negative electrode, etc. of the secondary battery 11 may be held in a conductive connection state.

Further, instead of the above-described embodiment in which the secondary battery 11 is arranged at one longitudinal end of each slat 3, as shown in FIG. The arranged first slats 3A and the second slats 3B arranged at the other end in the longitudinal direction of the secondary battery 11 may be arranged alternately. Then, the secondary batteries 11, 11 arranged on one end side of the first slats 3A, 3A can be connected and disconnected via the connecting portion composed of the electrode 25 arranged on one end side of the second slat 3B. While connecting, the secondary batteries 11, 11 arranged on the other end side of the second slats 3B, 3B are connected through the connection part consisting of the electrode 25 arranged on the other end side of the first slat 3A. may be configured to be intermittently connected. According to this configuration, it is possible to effectively prevent the weight balance and the thickness of the slats 3A and 3B from being left-right uneven.

Furthermore, a power supply unit 13 (see FIGS. 8 and 9) consisting of connectors connected to the plus and minus sides of the main battery 5 is provided. When the main battery 5 is configured to be connectable to devices, etc., the power stored in the main battery 5 can be effectively used by supplying it to external electrical devices.

The blind device 1 according to the present invention is not limited to the horizontal blind in which the thin plate-like slats 3 are placed at predetermined intervals in a horizontally long state as described above. It is also applicable to vertical blinds that are used in a suspended state.

1 blind device 3 slat
5 main battery 7 storage drive unit
9 tilt drive unit 10 solar cell
11 secondary battery 13 power supply unit
15a-15z connection part 18a-18z connection part
20a-20z connection part 22a-22z connection part
24 magnet

Claims (6)

a plurality of slats provided with solar cells and secondary cells for temporarily storing power generated by the solar cells;
a main battery that stores power supplied from the secondary battery,
each of the slats has a connecting portion that intermittently connects the secondary battery and the main battery;
A blind device, wherein the connecting portions of the adjacent slats change between a disconnected state in which they are separated from each other and a conductive connection state in which they are in contact with each other. further comprising a storage drive unit for displacing the slats between a use position in which the slats are spaced apart and a storage position in which the slats are brought close to each other;
2. A blind device according to claim 1, wherein said connecting portion is in said electrically interrupted state in said use position of each said slat, and said connecting portion is in said electrically connected state in said retracted position of said each slat. By changing the installation angle of each of the slats, one side of one slat and the other side of another slat adjacent thereto are brought closer to each other and are spaced apart from each other. further comprising a tilt drive unit that displaces to the light shielding position,
3. A blind device according to claim 1 or 2, wherein said connecting portion is in said conducting/interrupting state at said light-transmitting position of each of said slats, and said connecting portion is in said conducting/connecting state at said light-shielding position of said each slat. A blind device according to any one of claims 1 to 3, wherein each of said slats is provided with a magnet for holding said connecting portion in said electrically connected state. each of the slats has a first slat on which the secondary battery is arranged on one end side and a second slat on which the secondary battery is arranged on the other end side;
A blind device according to any one of the preceding claims, wherein the first slats and the second slats are arranged alternately. The blind device according to any one of claims 1 to 5, further comprising a power supply unit that supplies power stored in said main battery to the outside.

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