JP2002076407A - Photovoltaic power generator utilizing outdoor machine of air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform photovoltaic power generation by using the sunshade of an outdoor machine of an air-conditioner. SOLUTION: A large number of photovoltaic power generating parts 5 are arranged on the upper surface of the sunshade 3 covering the upper part of the outdoor machine 1 of an air-conditioner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photovoltaic power generator using a sunshade provided on an outdoor unit of an air conditioning room.

[0002]

2. Description of the Related Art A photovoltaic power generator is a device in which many thin power generating elements are arranged on a substrate. The power generating element generates voltage between terminals by irradiating sunlight and generates power.
There is a non-crystalline system (amorphous), and the price of the device is decreasing year by year. For this reason, not only in factories and buildings, but also recently, general houses are often installed using the roof and the like. Since such a solar power generation device obtains power from sunlight, which is natural energy, after installation, valuable power can be taken out at substantially zero cost, and carbon dioxide (CO ₂ ) due to global warming can be obtained. It is excellent in an environment free of occurrence of blemishes.

On the other hand, buildings, condominiums, general houses, and the like are provided with air conditioning equipment for cooling and heating, and the air conditioning outdoor unit is generally installed outdoors in a place exposed to direct sunlight. During the cooling period in summer, the irradiation energy of direct sunlight is high, and the temperature of the external unit of the air conditioning room rises in response to the direct sunlight, so that the cooling efficiency of the refrigerant decreases and the cooling capacity also decreases. Therefore, a simple plate-like awning member that blocks direct sunlight is often installed to suppress a rise in the temperature of the outdoor unit of the air conditioning room.

[0004]

The amount of power generated by a photovoltaic power generator is proportional to its installation area. However, there is a limit to the area of the southern roof where direct sunlight is often applied, which limits power generation. On the other hand, the upper surface of the awning member provided in the outdoor unit of the air conditioning room does not normally use anything. Therefore, an object of the present invention is to solve such a problem.

[0005]

That is, the present invention relates to a photovoltaic power generation device using an air conditioning outdoor unit, wherein a solar power generation unit is provided on a sunshade member provided in the air conditioning outdoor unit (claim). 1). In the above solar power generation device, the awning member can be supported by the support member fixed to the outdoor unit of the air conditioning room or its base (claim 2). In any one of the above-described photovoltaic power generation devices, a configuration is provided in which a circulating air generated between an intake portion and an exhaust portion of cooling air of an external unit of an air conditioning room is prevented by a shielding member provided on at least one of a sunshade member and a support member. (Claim 3).

[0006] In any of the above solar power generation devices,
A water spray device for cooling the outdoor unit of the air conditioning room is provided, and electric power generated by the photovoltaic power generator can be used as a pump of the water spray device and a part of the power source of the outdoor unit of the air conditioning room. In any of the above photovoltaic power generators, when a plurality of air conditioner outdoor units are arranged in parallel, an integrated sunshade member common to the air conditioner outdoor units can be provided (claim 5).

[0007]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view showing one example of the photovoltaic power generator of the present invention. The outdoor unit 1 is fixed to a concrete base 2 formed on the ground G with anchor bolts or the like. A plate-shaped awning member 3 that blocks direct sunlight is provided at an upper portion of the air-conditioning outdoor unit 1. The awning member 3 is made of, for example, a metal plate or a hard plastic plate, and is supported by a support member 4 fixed to the base portion 2. Supported. The support member 4 is composed of a column made of a steel material or a hard plastic material reinforced with fibers.

On the upper surface of the sunshade member 3, a photovoltaic power generator 5 constituting a photovoltaic power generator is provided. Solar power generation unit 5
A large number of thin crystalline or non-crystalline power generating elements are arranged in parallel on a common substrate, and their terminals are connected in series to take out power of a desired voltage from a common output terminal. Then, the common substrate is fixed to the sunshade member 3 by bolting or bonding. The upper side of each power generating element is covered with a light-transmitting protective cover with a sealing property so that water does not enter inside. Instead of fixing the support member 4 to the base portion 2, a dedicated small base portion may be provided and fixed thereto.

FIG. 2 is a longitudinal sectional view showing another example of the photovoltaic power generator of the present invention, and the same parts as those in FIG. 1 are denoted by the same reference numerals. In this example, a support member 4 supporting the sunshade member 3 is fixed to the outdoor unit 1 by bolts or the like. By doing so, the support member 4 can be shortened, and strong wind from each direction is supported by the heavy-weight air-conditioning outdoor unit 1, so that the support member 4 can be simplified.

FIG. 3 is a longitudinal sectional view showing still another example of the photovoltaic power generator of the present invention, and FIG. 4 is a left side view thereof. The same parts as those in FIG. 1 are denoted by the same reference numerals.
This example is a case of a relatively large air-conditioning outdoor unit 1, in which a cooling air intake portion 1a is provided on both sides and a discharge portion 1b is provided on an upper portion. Therefore, a pair of plate-shaped awning members 3 are provided in a left-right divided manner, and each awning member 3 is supported by each support member 4. The bottom of each support member 4 is fixed to a small base 6 different from the base 2 of the air conditioner outdoor unit 1, and cooling air is sucked from the through portion 7 provided at the lower portion to the intake portion 1 a as shown by an arrow. Is discharged from the upper discharge portion 1b between the sunshade members 3 as shown by arrows.

In such an air-conditioning outdoor unit 1, air from the discharge section 1b flows backward to the intake section 1a, that is, a so-called air circulation flow is apt to occur. When the air circulating flow is generated, the temperature of the intake air in the outdoor unit 1 increases, so that the cooling efficiency of the outdoor unit 1 also decreases. Therefore, from the support member 4 to the air conditioning outdoor unit 1
The shielding member 8 is extended to a part of the upper surface of the airbag, and the generation of the air circulation flow is prevented by the shielding member 8. In the case where the cooling air is taken in from the side as shown in FIG. 3 and discharged to the upper side, a shielding member 8 is provided to prevent the air circulating flow, and from the position of the air discharged from between the sunshade members 3 to the outside of the air conditioning room. Since the amount of cooling air increases due to the chimney effect up to the discharge section 1b of the unit 1, the cooling performance of the outdoor unit can be improved.

FIG. 5 is a modification of FIG. In this example, since each support member 4 is fixed to the air-conditioning outdoor unit 1 by bolting or the like as in the example of FIG. 2, the support members 4 are reduced in size and simplified. The lower part of each support member 4 is opened, and the cooling air is sucked into the intake part 1a from the open part as shown by the arrow, discharged from the upper discharge part 1b, and passes through each sunshade member 3 as shown by the arrow. Release to the outside. Then, the generation of the air circulation flow is prevented by the shielding member 8.
Moreover, the cooling performance of the outdoor unit can be improved by the chimney effect from the discharge unit 1b of the air conditioner outdoor unit 1 to the discharge unit between the sunshade members 3. In this example, the support member 4 is provided with an L-shaped portion for supporting the sunshade member 3 and a vertical portion extending downward from the L-shaped portion, and a part of the L-shaped portion also serves as the shielding member 8.

FIG. 6 shows another modification of FIG. In this example, the upper part of each support member 4 is the same as the example of FIG.
To the base unit 2 of the air conditioner outdoor unit 1 while being fixed to the base unit 2 by bolting or the like.
It is fixed to. Therefore, since each support member 4 is firmly fixed by both the outdoor unit 1 and the base unit 2, the stability is further improved. The cooling air is sucked into the intake part 1a as shown by the arrow from the penetrating part 7 provided at the lower part, is discharged from the upper discharge part 1b, passes between the sunshade members 3 as shown by the arrow, and is discharged to the outside. . The shielding member 8 prevents the air circulating flow from being generated, and the chimney effect from the discharge portion 1b of the outdoor unit 1 to the discharge portion between the sunshade members 3 improves the cooling performance of the outdoor unit.

In any of the cases shown in FIGS. 1 to 6, when a plurality of outdoor units 1 are provided side by side, an integrated sunshade member 3 common to the outdoor units 1 can be provided. For example, in the case of FIG. 1 or FIG. 2, a plurality of air-conditioning outdoor units 1 are arranged side by side in a direction perpendicular to the plane of the paper, and an elongate plate-shaped sunshade in a direction perpendicular to the plane of the paper so as to cover the upper part thereof in common. A member 3 and a support member 4 for supporting the member 3 are provided. Also in FIGS. 3 to 6, a plurality of air conditioning outdoor units 1 are juxtaposed in a direction perpendicular to the paper, and a plate-shaped sun shade elongated in a direction perpendicular to the paper so as to cover the upper portions thereof in common. A member 3 and a pair of support members 4 for supporting the member 3 are provided.

FIG. 7 is an example of an electric system diagram in the photovoltaic power generator of the present invention. The DC output of any of the photovoltaic power generation units 5 shown in FIGS. 1 to 6 is converted into AC by a direct-to-interchange converter (inverter) 9 using a thyristor, and
0 is supplied. Further, the DC output of the solar power generation unit 5 is also supplied to the storage battery facility 17. Power system 10 is commercial power 1
1 and supplies power to the pump 13 of the water spray device 12 that cools the outdoor unit 1 and cools it. The pump 13 is started by a temperature rise signal of a temperature detector (not shown) provided in the outdoor unit 1 and stopped by a temperature decrease signal. Note that these controls are performed by a control device (not shown). When the pump 13 is operated, cooling water supplied from a cooling water tank or the like via the pipe 14 is sprayed from the spray nozzle 15 to cool the heat exchange unit of the outdoor unit 1. Reference numeral 16 denotes an on-off valve provided in the pipe 14, and is closed when the outdoor unit 1 is stopped for a long time.

When the outdoor unit 1 is stopped, the electric power generated by the photovoltaic power generation unit 5 is stored in the storage battery facility 17 to prepare for a decrease in the amount of power generation such as at night. When the power consumption of the outdoor unit 1 and the pump 13 is larger than the power supplied from the solar power generation unit 5 and the storage battery 17, the insufficient power is automatically supplied (purchased) from the commercial power supply 11. . Conversely, when a surplus occurs in the power supplied from the solar power generation unit 5 and the storage battery facility 17, the surplus power is automatically supplied to the commercial power supply 11 (power sale).
In some cases, the storage battery equipment 17 may be omitted.

[0017]

As described above, the photovoltaic power generator of the present invention is characterized in that the photovoltaic power generation unit is provided on the awning member provided in the air conditioning outdoor unit. It can also be used for photovoltaic power generation, thereby simultaneously increasing both the cooling capacity of the outdoor unit and the energy saving.

In the above-mentioned solar power generation device, the awning member can be supported by the support member fixed to the outdoor unit of the air conditioner or its base, whereby the awning member can be stabilized. In any of the above photovoltaic power generation devices, a shielding member can be provided on the sunshade member or the support member, thereby preventing an air circulation flow generated between the intake part and the discharge part of the cooling air of the air conditioning outdoor unit. In addition, a decrease in cooling efficiency can be suppressed. In particular, when such a shielding member is provided in an air conditioning outdoor unit that takes in air from the side and exhausts air upward, the cooling performance of the air conditioning outdoor unit can be improved by the chimney effect.

[0019] In any of the above solar power generation devices,
A water spray device for cooling the outdoor unit is provided, and the power generated by the solar power generation device can be used as a pump of the water spray device and a part of the power supply of the outdoor unit. Power consumption can be reduced. In any of the above photovoltaic power generation devices, when a plurality of air conditioning outdoor units are arranged side by side, an integrated sunshade member common to the air conditioning outdoor units can be provided, whereby the sunshade member and the solar power generation unit are provided. , And installation costs and maintenance costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one example of a solar power generation device of the present invention.

FIG. 2 is a longitudinal sectional view showing another example of the photovoltaic power generator of the present invention.

FIG. 3 is a vertical sectional view showing still another example of the photovoltaic power generator of the present invention.

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a longitudinal sectional view showing a modification of FIG. 3;

FIG. 6 is a longitudinal sectional view showing another modification of FIG. 3;

FIG. 7 is an example of an electric system diagram in the photovoltaic power generator of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air-conditioning outdoor unit 1a Intake part 1b Discharge part 2 Base part 3 Sunshade member 4 Support member 5 Solar power generation part 6 Base part 7 Penetration part 8 Shielding member 9 Direct-intersection conversion part 10 Power supply system 11 Commercial power supply 12 Water spray device 13 Pump 14 Piping 15 Spray nozzle 16 On-off valve 17 Storage battery equipment G Ground

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masahiko Tanaka 5-37-1, Kamata, Ota-ku, Tokyo Toshiba Plant Construction Co., Ltd. F-term (reference) 3L054 BA10 BB01 BB02 3L060 AA03 CC10 5F051 BA05 JA17 JA20 KA05

Claims (5)

[Claims] 1. A photovoltaic power generation device using an air conditioning outdoor unit, wherein a solar power generation unit 5 is provided on a sunshade member 3 provided in the air conditioning outdoor unit 1. 2. The photovoltaic power generation system using an air conditioning outdoor unit according to claim 1, wherein the awning member 3 is supported by a support member 4 fixed to the air conditioning outdoor unit 1 or its base part 2. 3. An air intake unit 1a for cooling air of the air conditioner outdoor unit 1.
The air-conditioning outdoor unit according to claim 1 or 2, wherein an air circulating flow generated between the air-conditioning unit and the discharge unit 1b is prevented by a shielding member 8 provided on at least one of the sunshade member 3 and the support member 4. Solar power generator. 4. A water spray device 12 for cooling the outdoor unit 1 is provided, and a pump 13 of the water spray device 12 and a power generated by a solar power generation device as a part of a power source of the outdoor unit 1 are provided. A photovoltaic power generator using the outdoor unit according to claim 1. 5. The air-conditioning outdoor unit according to claim 1, wherein a plurality of air-conditioning outdoor units 1 are provided side by side, and an integrated awning member 3 common to the air-conditioning outdoor units 1 is provided. Solar power generation equipment used.