JPH1181579A - Method and system for controlling temperature - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temperature controlling method which automatically suppresses a rise in indoor temperature when the amount of solar radiation has increased. SOLUTION: There are provided a photovolatic power generation facility 10, a sensing device 40 for sensing the amount of power generated by the facility 10, and a light amount control device to control the amount of solar light entering a building through a lighting member fitted in an opening thereof. And the light amount control device includes a lighting amount adjusting member (hood 50) provided for the lighting member and a control means to control the action of the light amount adjusting member 50, and the control means is electrically connected to the sensing device 40 so that when the device 40 senses a power equal to or more than a predetermined amount of power generation, the member 50 is actuated through the control means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor temperature management method and a temperature management system, and more particularly, to a temperature management method and a temperature management system capable of suppressing an increase in indoor temperature even on a day with a large amount of solar radiation.

[0002]

2. Description of the Related Art Conventionally, there are houses equipped with photovoltaic power generation facilities in order to consider energy saving issues and environmental issues. In this solar power generation facility, when the amount of solar radiation increases, the amount of power generation increases. On the other hand, when the amount of solar radiation increases, the indoor temperature increases due to an increase in the outside air temperature or sunlight entering the room through a window or the like. Therefore, in summer and fine weather, an increase in indoor temperature is suppressed by operating a cooling device or closing a curtain to block sunlight entering the room.

[0003]

However, the operation of the cooling device and the closing of the curtain have been performed by a person who is indoors. Therefore, an object of the present invention is to provide a temperature management method for automatically suppressing an increase in indoor temperature when the amount of solar radiation increases.

Another object of the present invention is to provide a temperature management system that automatically suppresses an increase in indoor temperature when the amount of solar radiation increases. Another object of the present invention is to provide a temperature management system that can easily set a desired indoor temperature.

[0005]

SUMMARY OF THE INVENTION The present invention is to achieve the above object. (Claim 1) A power generation process using sunlight, a detection process for detecting the amount of power generation, and a light collection amount for adjusting the amount of sunlight entering the room when the amount of power generation detected in the detection process exceeds a predetermined reference value. And a control step.

[0006] Here, the term "photovoltaic power generation equipment" refers to an arrangement in which the solar cells are arranged in a plane so as to be fixable to a roof. Further, the “light-collecting-light control step” refers to a step of operating a device for reducing or preventing the amount of direct sunlight or reflected sunlight coming into a room when the amount of solar radiation increases.
For example, extending the eaves as described in claim 3,
In addition, it refers to opening and closing the curtain as described in claim 4.

The operation of the first aspect of the present invention will be described. When the amount of solar radiation increases, the amount of power generation increases and the indoor temperature also increases. Therefore, when the amount of power generation increases or the amount of power generation increases, the rise in indoor temperature can be suppressed by reducing or blocking the amount of sunlight entering the room. (Claim 2) The invention according to claim 2 is a solar power generation facility (1
0), a detection device (40) for detecting the amount of power generated by the photovoltaic power generation equipment (10), and a device for adjusting the amount of sunlight entering the building from a lighting member fitted to the opening of the building. A lighting control device, the lighting control device controls the operation of the lighting control member (e.g., 50) provided for the lighting member (e.g., eaves 50). Means, the control means and the detection device (40) are electrically connected, and when the detection device (40) detects power equal to or more than a predetermined power generation amount, the light-collecting amount adjusting member ( For example, the temperature management system is characterized in that the temperature management system is formed to operate.

[0008] Here, the "lighting member fitted into the opening of the building" is a member that partitions the inside and outside of the building with a translucent material, and is attached to, for example, a wall or ceiling that partitions the inside and outside of the building. Open / close windows, daylighting windows for lighting, and glass sliding doors through which people can enter and exit. In addition, the “light-collecting amount adjusting member” refers to a member that reduces or completely blocks sunlight entering the room, such as a roll-shaped eave or an opening / closing member that can be provided at the end of a roof and can be extended. In contrast, curtains, blinds, shutters, etc. that can be opened and closed freely.

The "detection device (40)" includes both a case of detecting a DC power amount and a case of detecting an AC power amount. When the amount of DC power is detected, the light-collecting-amount control device (50) can be operated in accordance with the amount of power generated before conversion into AC power causes a loss. In this case, either the aggregation device (20) or the inverter device (30) may include the detection device (40). On the other hand, when detecting the amount of AC power, the detection device (40) can be provided in the inverter device (30). This makes it possible to determine whether or not to operate the light collection amount control device (for example, 50),
The operation of sending an electric signal for operating the (50) can be performed by one inverter device (30).

The operation of the invention according to claim 2 will be described. As the amount of solar radiation increases, the amount of power generation increases and the indoor temperature rises. Therefore, by performing temperature adjustment so as to lower the indoor temperature when the amount of power generation increases, it is possible to suppress an increase in the indoor temperature. (Claim 3) The invention according to claim 3 is an invention in which the invention according to claim 2 is technically limited, and the member for adjusting the amount of collected light is a member capable of adjusting the amount of collected light according to a change in the amount of generated power. It is characterized by having.

[0011] Here, "the amount of light can be adjusted according to a change in the amount of power generation" means that the amount of light is adjusted stepwise as the amount of power generation increases, or that the amount of light is adjusted steplessly. Including both cases. For example, this can be achieved by providing a roll-shaped eave on the eaves and freely forming the elongate length of the eave. In addition, a pillar formed to cover the upper part of the veranda or terrace is provided with a roll-shaped eave. This includes extending the eaves to shade the veranda or terrace and block sunlight from entering the room. Furthermore, it can be achieved by forming the area where the blind (52) or the curtain covers the daylighting member so as to be adjustable in accordance with the amount of power generation, or by forming the wing angle of the blind (52) so as to be adjustable.

The operation of the invention will be described. It is possible to finely adjust the amount of collected light according to the amount of increase in the amount of solar radiation. (Claim 4) The invention according to claim 4 relates to a roof (70), a photovoltaic power generation facility (10) installed on the roof (70), and a power generation amount of the photovoltaic power generation facility (10). Detector for detecting (4
0), and between the roof (70) and the photovoltaic power generation facility (10), an air passage (61) communicating with the outside is provided, and the roof (7) is provided.
0) is provided with an opening (63) communicating from the inside of the roof (70) to the flow passage (61), and inside the flow passage (61), ventilation means for communicating the inside with the outside. (E.g., a ventilation fan 62), and the ventilation means (62) is electrically connected to the detection device (40), and operates when the power generation amount of the photovoltaic power generation facility (10) exceeds a predetermined reference value. A temperature management system characterized by being formed as described above.

The operation of the invention will be described. When the photovoltaic power generation equipment (10) is heated by the sunlight and own power generation, the temperature of the air in the flow passage (61) and the air near the attic increases. Then, when the amount of power generation increases, the ventilation means (62) operates to forcibly discharge the warmed air to the outside. As a result, while suppressing the rise in indoor temperature,
A decrease in the power generation efficiency of the solar power generation facility (10) due to a rise in temperature can also be suppressed. (Claim 5) The invention according to claim 5 is an invention in which the invention according to claim 2, 3, or 4 is technically limited, and the detection device can freely set a reference value of the power generation amount. It is characterized by being formed in.

The "reference value of the amount of power generation" referred to here means the amount of power generation set to operate the light collection control device or to operate the ventilation means. The operation of the invention will be described. It is possible to freely set the standard of the amount of power generation at which the light collection amount control device, the air conditioner, etc. operate. Therefore, it becomes easy to set the indoor temperature to a desired temperature.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to embodiments and drawings. The drawings used here are FIG. 1, FIG. 2, and FIG. FIG. 1 is a conceptual diagram showing a first embodiment of the present invention. FIG.
FIG. 4 is a conceptual diagram showing a second embodiment of the present invention. FIG. 3 is a vertical cross-sectional view showing an embodiment of the present invention, and is an enlarged view of the vicinity of a roof. (First Embodiment) The photovoltaic power generation system shown in FIG. 1 includes a photovoltaic power generation facility 10 fixed to a roof 70 of a building, and a terminal box 20 for collecting DC power generated by the photovoltaic power generation facility 10. And an inverter device 30 for converting DC power sent from the terminal box 20 into AC power. In addition, the inverter device 30 includes a detection device 40 for detecting the amount of power generation. The detecting device 40 is electrically connected to a light-collecting-amount control device for blocking sunlight entering indoors when the amount of power generation exceeds a predetermined reference value. The detection device 40 is formed so that the reference of the power generation amount at which the light collection amount control device operates can be freely set. The inverter device 30 is connected to an indoor distribution board 80. The indoor distribution board 80 is connected to an electric meter 81.

(Electric Light Control Device) The emissive light control device includes an eave 50 extending from the end of the roof 70 toward the ground.
Is provided. In FIG. 1, a slidable eave 50 is provided at the end of the roof 70. Further, a pillar 72 formed to cover the upper part of the terrace 71 is provided with a roll-shaped eave 51. Those eaves 5
Numerals 0 and 51 are formed so as to be electrically connected to the detection device 40 and to extend the eaves 50 and 51 when the power generation amount of the solar power generation facility 10 exceeds a predetermined reference value.

A window 52 that covers the inside and outside of the building is covered with a blind 52. The blind 52 is formed as a device that can be raised and lowered by an electric signal and that can adjust the angle of the wing of the blind 52. Then, it is electrically connected to the detection device 40, and is formed so that when a power generation amount equal to or more than a predetermined power generation amount is detected, the blind 52 is lowered or the angle is changed. Instead of the blind 52, a roll screen or a curtain may be provided. Further, a shutter type shutter may be provided. When there are a plurality of windows and glass sliding doors, each window or glass sliding door may be provided with a plurality of types of light amount control devices such as blinds and roll screens for windows and curtains for glass sliding doors. In addition, windows and doorways that are out of direct sunlight, for example,
A window provided on the north wall of the building may also be provided with an electric curtain or the like connected to the detection device 40, and may be formed so as to be closed for heat insulation when the cooling device is operated.

(Ventilation Device) Between the roof 70 and the photovoltaic power generation equipment 10, an air flow passage 61 communicating to the outside is provided. The roof 70 has an opening 63 communicating with the flow passage 61 from inside the roof 70. The flow passage 61 communicates with a ridge space 66 near the ridge 65 via a passage 64. The building space 66
It communicates with the outside near the eaves part 68 of the makeup ventilation building 67 forming the outer surface of the building part 65. Inside the flow passage 61, a passage
A ventilation fan 62 for forcibly discharging the air inside the flow passage 61 is provided near 64. The ventilation fan 62 is formed so as to be electrically connected to the detection device 40 and to be activated when the power generation amount of the photovoltaic power generation facility 10 exceeds a predetermined reference value.

(Operation) The operation of the light-collecting-amount control device will be described. 1) The solar power generation facility 10 generates power. 2) The generated DC power is collected and converted to AC power. 3) Detect power generation. 4) The amount of power generation increases, and the amount of power generation exceeds a predetermined reference value. 5) The lighting control device is activated to reduce the lighting. 6) The sun is going down, and the amount of power generation falls below the prescribed reference value. 7) Release the operation status of the lighting control device and increase the lighting.

In the above description, the lighting control device is described. However, in the case of the roof ventilation device, the process of 5) is "activate the ventilation fan 62" and the process of 7) is "stop the ventilation fan 62". Then, the ventilation fan 62 can also be operated. The operation of the present embodiment will be described. When the amount of solar radiation increases, the amount of power generation increases and the indoor temperature also increases.
Therefore, the power generation amount increases, the light collection amount control device operates,
Blocks sunlight from entering the room. As a result, an increase in indoor temperature can be suppressed.

In addition, by solar power and own power generation,
When the photovoltaic power generation facility 10 is heated, the temperatures of the air in the flow passage 61 and the air near the attic rise. Therefore, when the amount of power generation increases, the ventilation fan 62 operates to discharge warmed air to the outside. As a result, it is possible to suppress an increase in the indoor temperature and also suppress a decrease in the power generation efficiency of the solar power generation facility 10 due to the increase in the temperature. In addition, the flow passage 61 communicates with the outside via the passage 64 and the ridge space 66 even when the ventilation fan 62 is stopped. Therefore, even if the ventilation fan 62 is stopped, ventilation of the flow passage 61 and the attic space R can be performed. The ventilation fan 62 may be provided with a valve for shutting off the flow passage 61 so as to prevent warm air from leaking from the attic space R through the opening 63 in the winter. (Second Embodiment) The indoor distribution board 80 of FIG. 2 is provided with a circuit breaker 82 for a light quantity control device. The circuit is connected to the circuit breaker 82 for the light quantity control device, the eaves 50, 51, the blind 52 and the like. Other configurations are the same as those of the first embodiment, and therefore, the same configurations are denoted by the same reference numerals and description thereof will be omitted.

The operation of the second embodiment will be described. The ON / OFF switching of the light collection amount control device can be easily performed by the circuit breaker 82 for the light collection amount control device.
In addition, wiring work for the light collection control device can be performed simultaneously with wiring work for a normal electric system such as a lighting and an outlet. Therefore, the labor required for wiring work can be reduced. (Variation 1) The detection device 40 may be connected to an indoor air conditioner, and when the amount of power generation exceeds a predetermined reference value, the air conditioner may be configured to operate to suppress an increase in indoor temperature. .

Specifically, when the amount of power generation exceeds a predetermined reference value in a state where the cooling / heating switching device of the air conditioner is in cooling, the cooling device operates. In addition, even when the cooling device is already operating, according to the increase in the amount of power generation,
The cooling device may be formed so that the temperature setting and the strength of the air flow change. Note that the present embodiment can be applied even when the air conditioner is a device dedicated to cooling. (Variation 2) In the above embodiment, the eaves
50, 51, blinds 52, curtains, shutters, air conditioners, etc., are automatically extended or closed when the detection device 40 detects a power generation amount equal to or greater than a predetermined reference value. May be provided only with a display device that indicates that a power generation amount equal to or more than the reference value is detected. That is, when the display device detects a power generation amount equal to or more than a predetermined reference value, the display device notifies a person indoors of the fact by a blink signal or the like. Then, a person who sees the blinking signal or the like extends the eaves or closes the curtain or the like by his / her own judgment.

According to the present embodiment, it is possible to install the temperature management system at a low cost and without any trouble as compared with the case where the light collection amount control device and the detection device are wired. Also, a person indoors can appropriately adjust the amount of light and the temperature according to his / her own sensed temperature.
Further, since no electric eaves or curtains are required, existing housing equipment can be used.

[0025]

According to the first aspect of the present invention, it is possible to provide a temperature management method for automatically suppressing an increase in indoor temperature when the amount of solar radiation increases. According to the second to fourth aspects of the present invention, it is possible to provide a temperature management system that automatically suppresses an increase in indoor temperature when the amount of solar radiation increases.

According to the fifth aspect of the present invention, a temperature management system which can easily set a desired indoor temperature can be provided.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a first embodiment of the present invention.

FIG. 2 is a conceptual diagram showing a second embodiment of the present invention.

FIG. 3 is a vertical sectional view showing an embodiment of the present invention.

[Explanation of symbols]

10 Photovoltaic power generation equipment 20 Terminal box 30 Inverter device 40 Detection device 50 Eaves 51 Eaves 52 Blinds 61 Flow passages 62 Ventilation fans 63 Openings 64 Passages 65 Buildings 66 Buildings space 67 Makeup ventilation buildings 68 Houses 70 Roofs 71 Terraces 72 Posts 80 Indoor distribution board 81 Electric meter 82 Breaker for light intensity control device R Attic space

Claims (5)

[Claims] 1. A power generation process using sunlight, a detection process for detecting a power generation amount, and a light collection amount for adjusting the amount of sunlight entering the room when the power generation amount detected in the detection process exceeds a predetermined reference value. And a control step. 2. A photovoltaic power generation system, a detection device for detecting a power generation amount of the photovoltaic power generation system, and a device for adjusting the amount of sunlight entering a building from a daylighting member fitted to an opening of a building. A light-amount control device, comprising: a light-amount control member provided for the light-collecting member; and control means for controlling the operation of the light-amount control member. And a temperature control system, wherein the temperature control system is electrically connected to the detection device, and when the detection device detects power equal to or more than a predetermined power generation amount, the light collection amount adjustment member is operated via control means. . 3. The temperature management system according to claim 2, wherein the light intensity control member is a member capable of adjusting the light intensity in accordance with a change in the power generation amount. 4. A roof, comprising: a photovoltaic power generation facility installed on the roof; and a detection device for detecting a power generation amount of the photovoltaic power generation facility. Is provided with an air flow passage leading to the outside, the roof is provided with an opening communicating with the flow passage from inside the roof, and ventilation means communicating the inside with the outside is provided inside the flow passage. A temperature management system, wherein the ventilation means is electrically connected to the detection device, and is activated when a power generation amount of the photovoltaic power generation facility exceeds a predetermined reference value. 5. The temperature management system according to claim 2, wherein the detection device is formed so that a reference value of the power generation amount can be set.