JPH01304289A - Natural lighting device - Google Patents

Abstract

PURPOSE:To save space by installing an internal louver to internal and external double glass, a revolution limitable blower for circulating air between the glass and the upper and lower sections of the glass and respectively mounting a semi-transmitting solar cell and a liquid crystal panel onto the surfaces of the internal and external glass. CONSTITUTION:A blower 3 circulating air is mounted between the double glass of internal and external glass 1, 2, and louvers 4 are set up to the upper and lower sections of the internal glass 2 and air is blasted efficiently from the inside of a chamber. A liquid crystal panel 6 is fitted onto the surface of the internal glass 2 and a semi-transmitting solar cell 5 onto the surface of the external glass 1, and the panel 6 can be operated by a controller 8 by an indoor remote controller 7. A negative liquid crystal panel is used as the panel 6, the panel 6 is not conducted in the nighttime, the state of light-shielding is brought and the panel is held privately in order to conduct the liquid crystal panel 6 on the internal glass 2 and work the quantity of natural lighting in an adjustable manner by the indoor remote controller 7. Accordingly, natural lighting can be finely adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a lighting device installed in a house or the like.

2. Description of the Related Art As shown in FIG. 11, this type of daylighting device has a slat between double-paned glass consisting of an outer glass 1 that is in direct contact with the outside air and an inner glass 2 that is in contact with the interior of the room. It is equipped with a blind 17 which is a type of lift-up blind. The slats of this blind 17 are configured to block solar radiation transmitted through the outer glass 1 and to control the light, thereby alleviating temperature changes in the window portion due to solar radiation and the like.

In other words, since an air layer is formed between the outer glass 1 and the inner glass 2, the amount of heat exchange between the inner glass 2 and the room is lower than that of the outer glass 1.
The amount of heat exchanged with the outside is small compared to the amount of heat exchanged with the outside, and the insulation effect at the window is improved compared to ordinary glass windows.

Furthermore, the blind 17 provided between the outer glass 1 and the inner glass 2 not only improves the light blocking and dimming effects, but also
During the summer when sunlight is strong, it reduces the amount of heat acquired from the sun's rays, reducing the indoor cooling load. It also prevents discoloration of building materials and furniture by preventing excessive illumination.

Next, another conventional example will be explained using FIG. 12.

In FIG. 12, the difference from the conventional example is that the outer glass 1
Since the fan 3 is provided between the double-glazed glass made up of the inner glass 2 and the inner glass 2, this configuration allows indoor air to be circulated between the double-glazed glass. Reduces the amount of heat entering and exiting the room.

However, the blind 17 provided in each of the above-mentioned conventional examples was a slat type elevating blind in all cases.

Problems to be Solved by the Invention However, the above configuration has the following problems.

(1) The blind 3 is a slant type elevating blind, and the light adjustment is mechanically performed manually, making fine light adjustment difficult and extremely inconvenient to use.

(If the blind 3 is electrically controlled and becomes an automatic slat type lifting/lowering blind, a motor for dimming is required,
In addition to being expensive, it also requires a separate power source, which increases the space and weight of the product itself.

(2) Slant type elevating blind (Blind 17
), the slat surface rotates in the circumferential direction.
Heh/ The distance between the double panes of glass is large, and the complex structure with multiple layers of slants increases costs, leading to an increase in product weight and space.

(3) Generally, slant-type elevating blinds (Blind 1
7) is not suitable for use as a lighting device installed at high places or horizontally.
It was difficult to apply it to roof skylights, etc.

Particularly, in the case of those equipped with a fan 3, since the fan 3 blows air between the double-glazed windows, the wind noise caused by the slats was very unpleasant for the user.

(5) If a liquid crystal panel is used instead of the slat type instead of the blind 17, problems 1 to 5 above can be solved to some extent, but generally the normal operating temperature range of the liquid crystal is O'C to The condition was around 70'C, and there was a quality problem in installing it in a daylighting device that was constantly exposed to direct sunlight.

The present invention solves these conventional problems, and provides a lighting device that requires a small installation space, can be installed horizontally at a high place, and can easily finely adjust the lighting.

Means for Solving the Problems In order to solve the above-mentioned problems, the lighting device of the present invention includes a double glass panel consisting of an outer glass provided on the outdoor side and an inner glass provided on the indoor side, and the double glass glass. It consists of a fan whose rotation speed can be controlled to circulate air between the windows, and an inner louver provided above and below the inner glass in order to efficiently circulate indoor air between the double windows by the fan, A semi-transparent solar cell that transmits a moderate amount of light is provided on the surface of the outer glass, and a liquid crystal panel is provided on the surface of the inner glass, and the liquid crystal panel and the fan are controlled by electricity obtained from the solar cell. It is what it is.

Effects of the present invention With the above-described configuration, the indoor air is circulated between the double-glazed windows and the surface temperature of the inner glass is brought close to room temperature, thereby reducing the temperature of the liquid crystal panel to its normal operating temperature (
0 to 70°C).

Embodiment 7 H/ Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. Note that the same components as those in the conventional example are given the same reference numerals, and their explanations will be omitted.

1 and 2 show a first embodiment, 1 is an outer glass, 2 is an inner glass, and a fan 3 circulates indoor air between the double glass. Further, the looper 4 is provided above and below the inner glass 2 to achieve efficient air blowing from the room.

In addition, a liquid crystal panel 6 is placed on the surface of the inner glass 2.
A semi-transparent solar cell 5 that transmits a moderate amount of light is provided on the surface of the solar cell. The liquid crystal panel 6 is connected to an indoor remote controller 8 via a controller 7, and can be operated using electrical signals.

In the above configuration, the amount of daylight is controlled by the indoor remote control 8 by energizing the liquid crystal panel 6 of the inner glass 2, without having a light control device such as a slat between the double glass windows (outer glass 1 and inner glass 2). It acts in such a way that it is possible to adjust from

A light control device using the liquid crystal panel 6 will be described in detail with reference to FIG. 3.

Since the liquid crystal panel 6 employed in this embodiment is of a negative type, it is not energized at night and is in a light-shielded state as shown in FIG. 3(a). In other words, even if the interior lighting is bright, the interior cannot be seen from outside at all, making it suitable for maintaining privacy.

Next, a case where the amount of light emitted during the daytime due to cloudy weather or the like is small will be explained. Since the amount of light emitted from the sun is small, sufficient lighting is required indoors. Therefore, when power generated by the semi-transparent solar cell 5 is applied to the liquid crystal panel 6, the negative type liquid crystal panel 6 enters a transparent state and approaches transparency (see Fig. 3).
b)).

Furthermore, in the case of clear skies during the day, the strong sunlight is softened by the shading effect. That is, the amount of electricity applied to the liquid crystal panel 6 can be adjusted using the indoor remote controller 8 or the like, and the transparency can be arbitrarily set (FIG. 3(C)).

In this embodiment, in order to perform the above-described light control operation, the user does not need to move at all, and only needs to operate the remote control 7 at hand.

In addition, all the power to operate the liquid crystal panel 6 is It can be covered by the solar battery 5.

For nighttime dimming, the controller 8 is equipped with a power storage device such as a battery, so that it can function sufficiently using electricity stored during the day.

By the way, in order to employ the liquid crystal panel 6 as a light control device, it is necessary to ensure operational reliability with respect to heating of the liquid crystal panel 6 by sunlight and cooling during low outside air.

In this embodiment, indoor air is circulated between the double-glazed windows by the fan 3 via the inner looper 4. According to this configuration, the surface of the inner glass 2, that is, the temperature of the liquid crystal panel 6 can always be kept close to room temperature, so the normal operating temperature range of the liquid crystal panel 6 (0 to 70°C
) can be maintained sufficiently.

Further, since the movement of the fan 3 is sufficiently driven only by the power generated by the solar cell 5 provided on the outer glass 1, there is no cost to drive the fan 3.

Next, a second embodiment of the present invention will be described using FIG. 4.

The difference in FIG. 4 from the first embodiment is that outer loopers 9 are provided above and below the outer glass 1, and outdoor air is also circulated between the double-glazed windows by a fan 3. According to this configuration, by combining the inner looper 4 with opening and closing, it is possible to ventilate the room, and new functions can be added to the double-glazed lighting device.

For example, by using the fan 3 to circulate the air between the double-glazed windows that has been warmed by sunlight during the day in the summer, and the cooled air inside the room, it is possible to reduce heat radiation from the window. brings in outdoor air and gives a cool feeling indoors.

On the other hand, in winter, by sending the warm air between the double-paned windows back into the room during the day to reduce the heating load, and by closing all the louvers at night, a complete air layer is created between the double-paned windows. A heat insulating effect can be obtained.

Next, a third embodiment of the present invention will be described using FIG. 5.

11...- In Fig. 5, the difference from each of the above embodiments is the temperature at which the surface temperature of the inner glass 2 (the surface temperature of the inner glass 2 is almost the same as that of the liquid crystal panel 6) is detected. A sensor 10 is provided, and a signal detected by the temperature sensor 10 is configured to control the operation of the fan 3 via a controller 8 equipped with a power storage device, and means for controlling the rotation speed of the fan 3. Similar to the first embodiment, it is also possible to control the indoor remote control 7. According to this configuration, the amount of air circulating between the double-glazed windows can be controlled by the liquid crystal panel 6. The normal operating temperature range of the liquid crystal panel 6 can be maintained automatically and reliably, thereby establishing reliability as a light control device.

That is, when the surface temperature of the liquid crystal panel 6 rises too much,
Although malfunctions such as a ghost phenomenon occur, the above configuration automatically increases the rotational speed of the fan 3 and lowers the surface temperature. Conversely, if the temperature drops too much, a delay in the operating speed of the liquid crystal, etc. will occur, but this can be efficiently prevented by adjusting the rotation speed of the fan 3 in the same way.

On the other hand, when the liquid crystal panel 6 is within the normal operating temperature range and there is little need for ventilation by the fan 3, the rotation speed is automatically lowered, so slight noise such as wind noise caused by the rotation of the fan 3 is further reduced. This makes it practical for installation in offices and subcommittee-type apartments.

Next, a fourth embodiment of the present invention will be described using FIG. 6.

In FIG. The difference from the third embodiment is that an inner looper 4 provided on the upper and lower sides of the inner glass 2 and an outer looper 9 provided on at least one of the upper and lower sides of the external force lath 1 are driven by electrical control. It is equipped with a motor 11, and receives a signal from an indoor remote controller 7.
This is because it is configured to open and close at will. According to this configuration, the ventilation function described in the second embodiment of the present invention can be remotely controlled.

In addition, especially in the ventilation mode, the fan 3
,, -L By finely adjusting the air flow rate and the opening degree of the inner looper 4,
It is possible to create a comfortable air-conditioned space indoors and significantly improve the feeling of coolness.

Next, a fifth embodiment of the present invention will be described using FIG. 7.

The difference in FIG. 7 from the above-mentioned embodiments is that a space-saving solar cell 12 is provided on the surface of the outer glass 1. According to this structure, the daylighting device of the present invention can be used. When employed in a residential window such as an apartment building, the effect of the above embodiment can be obtained without preventing the outside glass 1 from passing through.

That is, even though the solar cell 5 is semi-transparent, it significantly obstructs the field of view when used as a window for enjoying the outside scenery. For this reason, if it is attached to the entire surface of the outer glass 1, the feeling of openness from the window will be hindered. This embodiment is effective in solving this problem. For example, a space-saving solar cell 12 with low transmittance is attached to about the upper half of the outer glass 1, and the field of view of the window is improved while generating the necessary power. can be maintained.

In this embodiment, the space-saving solar cell 12 is mounted on the surface of the outer glass 1, but the solar cell 5 is mounted on a surface other than the surface of the outer glass 1, and the outer glass 1 is used as a conventional transparent glass. Good too.

Next, a sixth embodiment of the present invention will be described using FIG. 8.

The difference in FIG. 8 from the above-mentioned embodiments is that the inner glass 2 is opened and closed by an opening/closing joint 13. According to this construction, maintenance of the double glazing becomes easy. be.

That is, since the fan 3 circulates air between the double panes of glass, the space between the double panes of glass becomes dirty with dirt during long-term use. Accumulation of lumps, etc. not only obstructs the view, but also promotes the proliferation of bacteria and is unsanitary. This embodiment is effective for solving these problems, for example,
The inner glass 2 can be opened and closed freely at the opening/closing joint 13, and the handle 14 provided at the bottom of the inner glass 2 can be opened and closed with a hand 15.

By pulling it forward, you can perform maintenance such as cleaning between the double-glazed windows. In the present invention, as described above, the light control operation is performed by energizing the liquid crystal panel 6, and if the inside of the internal force lath 2 is not always kept clean, this light control effect cannot be obtained. Maintaining the heavy glass space is a very important task.

In this embodiment, the inner glass 2 is opened and closed, but the outer glass 1 or both glasses 1 and 2 inside the outer e may be opened and closed.

Next, a seventh embodiment of the present invention will be described using FIG. 9.

FIG. 9 shows an embodiment in which the daylighting device of the present invention is installed on the roof of an ordinary house. 15 is the roof of the house, 1 is the outside glass of the daylighting device, 2 is the inside glass, 3 is the fan, and semi-transparent solar cells 5 are placed on the surfaces of the outside glass 1 and the inside glass 2, respectively.
and a liquid crystal panel 6.

Normally, the roof of a house can be easily thought of as a place to take in sunlight, and some have already been realized in solar houses and the like. However, the problem here is that during the daytime, when summer sunlight is extremely strong, the indoor space is heated by solar heat, increasing the cooling load. In addition, sunlight may cause discoloration or deformation of furniture. Daylighting from the roof helps with sterilization due to sunlight's ultraviolet rays, a sense of cleanliness, a sense of openness,
There are many advantages such as heating by solar heat, and various means have been devised to solve the above problems.

In this embodiment, all of these problems can be solved because the above configuration enables horizontal installation at a high place.

That is, it is difficult to install conventional slat-type double-glazed windows on horizontal or sloped surfaces such as roofs of ordinary houses, and in particular, large-scale equipment is required to drive the slats. However, the lighting device of the present invention can be installed as part of the roof as shown in FIG. 9, and there are no restrictions on its installation angle. In addition, since the light control can be controlled remotely, the user does not have to move even if the roof is an island.

You can make fine adjustments with the touch button. This allows for freely adjusting the amount of light coming in through the openings, alleviating indoor heating during the summer and reducing the cooling load, as well as preventing excessive illumination and discoloration and deformation of building materials and furniture.

Furthermore, since the present invention is equipped with a fan 3 between the double panes of glass, cold radiation from the roof lighting section is reduced in winter, and heat radiation loss during heating is reduced, resulting in a significant energy saving effect.

Next, an eighth embodiment of the present invention will be described using FIG. 10.

FIG. 10 shows this embodiment in which the daylighting device of the present invention is installed on the roof of a transportation vehicle such as an automobile.

The structure and effects of this embodiment are similar to those of the seventh embodiment.

2. Description of the Related Art In general, many means of transportation such as automobiles are equipped with a lighting section (sunroof, moonroof, etc.) on the roof. However, in addition to being installed horizontally, it was difficult to control the light on the roof, which gets hot. In addition, when installed in a car, etc., the device requires space saving, and power saving is also an essential condition, especially for private cars that do not have a power generation device other than a power storage device.

This embodiment allows for horizontal installation and has features such as space saving, light weight, and low power consumption, so it can be mounted on the roof of a transportation vehicle such as a car.

Effects of the Invention As described above, the lighting device of the present invention provides the following effects.

(1) Dimming can be controlled remotely, making it easy to fine-tune lighting, and significantly reducing the user's effort.

(2) Since a complicated and large-scale light control mechanism such as a slat is not provided between the double-glazed windows, the space and weight of the product can be reduced.

(3) Since light control is performed using a liquid crystal panel, it is possible to install the lighting device at high places and horizontally, and it can also be installed on roofs, skylights, etc.

(4) The rotation speed provided between the double glazing is controlled19
-7 Since the indoor air is circulated by a fan, the surface temperature of the liquid crystal panel can be maintained within the normal operating temperature range, making it highly reliable as a dimming mechanism and reliably preventing condensation. .

(5) Since the fan circulates air between the double-glazed windows, it is possible to ventilate the room by opening and closing the louvers installed inside and outside the room at will, adding a ventilation mode to the daylighting device. At the same time, the heat insulation effect can be enhanced. In addition, since it does not have a slant, the wind noise caused by the fan is small and noise can be reduced.

(6) Since semi-transparent solar cells are installed on the surface of the outer glass, there is no need to obtain the electric power necessary to power the liquid crystal panel or operate the fan, and by installing a power storage device, Even when the amount of power generated by the solar cells is low, such as at night, the lights can be adjusted and the fan can be operated.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a daylighting device according to a first embodiment of the present invention, FIG.
a), (b), and (c) are operation diagrams explaining the operating principle of the daylighting device, FIG. 4 is a sectional view of the daylighting device according to the second embodiment of the present invention, and FIG. FIG. 6 is a sectional view of the lighting device according to the fourth embodiment of the present invention, and FIG. 7 is a sectional view of the daylighting device according to the fourth embodiment of the present invention.
FIG. 8 is a sectional view of the lighting device according to the sixth embodiment of the present invention, and FIG. 9 is a cross-sectional view of the lighting device according to the seventh embodiment of the present invention applied to the roof of a house. FIG. 10 is a sectional view showing the state in which the lighting device according to the eighth embodiment of the present invention is applied to the roof of a car. FIG. 11 is a sectional view of the conventional lighting device.
FIG. 2 is a sectional view of a daylighting device showing another conventional example. 1...outer glass, 2...inner glass, 3 fan, 4...louver, 5...solar cell, 6
LCD panel, 7...Remote control, 8...Controller, 9...Outer louver, 10 -Temperature sensor, 11
··Drive motor. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure °゛11 Mitehira 1-304289 (7) Figure 12 □

Claims (6)

[Claims] (1) Double glass consisting of an outer glass provided on the outdoor side and an inner glass provided on the indoor side, and a fan whose rotation speed can be controlled for circulating air between the double glass. The semi-transparent solar panel consists of inner louvers installed above and below the inner glass to efficiently circulate indoor air between the double-glazed windows by the fan, and allows a moderate amount of light to pass through the surface of the outer glass. A lighting device comprising a battery and a liquid crystal panel on the surface of the inner glass, wherein the liquid crystal panel and the fan are controlled by electricity obtained from a solar cell. (2) The daylighting device according to claim 1, wherein power supply to the liquid crystal panel is controlled remotely by a remote controller installed indoors via a controller equipped with a power storage device. (3) Claim 1 or 2, wherein an outer louver for ventilating indoor air is provided on at least one of the upper and lower sides of the outer glass.
Lighting device described. (4) The lighting device according to any one of claims 1 to 3, wherein a temperature sensor is provided between the double panes of glass, and the controller controls the rotation speed of the fan based on a detection signal from the temperature sensor. (5) Equipped with a drive motor for the inner and outer louvers,
5. The daylighting device according to claim 4, wherein the controller controls the drive motor based on a signal from a remote control provided indoors or a detection signal from a temperature sensor provided between the double panes of glass. (6) Among double glazing consisting of outer glass and inner glass,
6. The lighting device according to claim 1, wherein at least one of the glasses is configured to open and close.