JP2024069951A - Ventilation type temperature adjusting device - Google Patents

Abstract

To provide a ventilation type temperature adjusting device avoiding the narrowing of a living space.SOLUTION: A ventilation type temperature adjusting device 1 includes a light control window W, a shielding member 2, and a ventilation device 4. The light control window W is disposed in an opening BO of a building outer wall BW, and can adjust the amount of light entering a living space R of a building B. The shielding member 2 is disposed so as to extend vertically on the living space side with respect to the light control window, and is movable between an open state in which the light control window is exposed to the living space side and a closed state in which the light control window is shielded from the living space side. The ventilation device 4 draws air in the living space through a space between the light control window and the shielding member.SELECTED DRAWING: Figure 2

Description

The present invention relates to a ventilation type temperature control device, and in particular to a ventilation type temperature control device that is placed near an opening in the exterior wall of a building.

Technology has been known for some time that allows air to circulate between the exterior glass facing the exterior space of a building and the interior glass facing the living space of the building.

For example, Patent Document 1 describes an exterior wall structure that includes an outer glass fitted to the outer surface of a window sash, an inner glass fitted to the interior side of the window sash, an air flow passage formed between the outer glass and the inner glass, and a blind hung along the inner glass within the window sash.

JP 2005-256277 A

However, in the technology described in Patent Document 1, blinds are installed inside the window sash, so the window sash needs to be made thicker to accommodate the thickness of the blinds, which can result in a narrower living space.

The present invention was made in consideration of the above-mentioned problems, and its purpose is to provide a ventilation type temperature control device that avoids narrowing of the living space.

To achieve the above object, the ventilation type temperature control device of the present invention is characterized by comprising: a light control window that is placed in an opening in an exterior wall of a building and is capable of adjusting the amount of light entering a living space of the building; a shielding member that is placed so as to extend vertically on the living space side of the light control window and is movable between an open state in which the light control window is exposed to the living space side and a closed state in which the light control window is shielded from the living space side; and a ventilation device that draws in air from the living space through the space between the light control window and the shielding member.

The present invention provides a ventilation type temperature control device that avoids narrowing of the living space.

FIG. 2 is a side view of the ventilation type temperature control device according to the embodiment. FIG. 2 is a control block diagram of the ventilation type temperature control device according to the present embodiment. 5A and 5B are diagrams illustrating a shielding member according to the embodiment. 1A and 1B are diagrams illustrating a light control glass window according to the present embodiment, in which (a) shows a state in which the light control glass window has a large amount of light transmission, and (b) shows a state in which the light control glass window has a small amount of light transmission.

Below, a ventilation-type temperature control device 1, which is one embodiment of the present invention, will be described with reference to the drawings. The same or equivalent components, parts, etc. shown in each drawing will be given the same reference numerals, and duplicate descriptions will be omitted as appropriate.

<Configuration of ventilation type temperature control device 1>
As shown in Figures 1 and 2, the ventilation type temperature control device 1 includes a roller screen (shielding member) 2, a winding device 3, a ventilation device 4, a control device 5, a light control glass window (light control window) W, a power supply device 7, and a sensor 40.

As shown in FIG. 2, the ventilation type temperature control device 1 is placed in the perimeter area P of the building B. The perimeter area P is an area near the exterior wall BW or the opening BO of the building B. The ventilation type temperature control device 1 is placed in the perimeter area P, particularly near the opening BO of the exterior wall BW.

In the following explanation, the up-down direction is defined according to the direction of gravity (Figs. 2 to 4). The direction perpendicular to the up-down direction, that is, the width direction of the roller blind 2, is defined as the left-right direction (Fig. 3).

As shown in FIG. 3, the roller blind 2 is a long member extending from one end 21 to the other end 22. In this embodiment, the one end 21 is located at the upper end and the other end 22 is located at the lower end. As shown in FIG. 1, the roller blind 2 is hung so as to extend vertically near the light control glass window W, and divides the interior of the building B into a ventilation space S and a living space R. In other words, the roller blind 2 is positioned so as to extend vertically on the living space R side of the light control glass window W. As a result, a ventilation space S is formed between the roller blind 2 and the light control glass window W.

The roll screen 2 is a woven fabric that extends from one end 21 to the other end 22. The roll screen 2 is configured in a mesh shape with warp threads and weft threads. The light transmittance and solar shading rate of the roll screen 2 are appropriately determined depending on the size of the gap between the warp threads and weft threads, the material of the warp threads and weft threads, etc. The light transmittance and solar shading rate of the roll screen 2 may be appropriately changed depending on the purpose of use, and are not particularly limited.

The roller blind 2 has a bottom bar 6 at the other end 22. The bottom bar 6 is a rod-shaped member that can be attached and detached freely to the other end 22 of the roller blind 2. The bottom bar 6 can be attached and detached using any of the following methods: hook-and-loop fasteners, line fasteners (such as those using teeth), and point fasteners such as buttons. The bottom bar 6 has approximately the same length (left-right length) as the other end 22. The bottom bar 6 may be formed to be longer in the left-right direction than the other end 22. The bottom bar 6 applies downward tension to the roller blind 2 by its own weight.

The winding device 3 is a device that winds up and down the roller screen 2, and is fixed near the ceiling board U. The winding device 3 has an axis 31 connected to one end 21 of the roller screen 2, and a power unit 32 such as a motor that rotates the axis 31. The winding device 3 is connected to the control device 5 by wire or wirelessly, and can communicate with the control device 5. The winding device 3 receives instructions from the control device 5 and rotates the axis 31 using the power unit 32 to wind up or down the roller screen 2, thereby moving it up and down. When the winding device 3 winds up the roller screen 2, the light control glass window W is exposed to the living space R side, and the open state is reached. When the winding device 3 winds down the roller screen 2, the light control glass window W is shielded from the living space R side, and the closed state is reached. In the closed state, a predetermined ventilation clearance is formed between the bottom bar 6 and the floor surface F.

In this embodiment, the ventilation device 4 is installed above the ceiling plate U. The ventilation device 4 is connected to the control device 5 by wire or wirelessly and can communicate with the control device 5. The ventilation device 4 is a device that draws in air inside the building B (i.e., the living space R) through the ventilation space S. Specifically, the ventilation device 4 receives instructions from the control device 5 and draws in air from the living space R through the ventilation space S when the roller blind 2 is in a closed state. The air drawn in by the ventilation device 4 is discharged to the outside of the building B through a duct (not shown) or the like.

As shown in FIG. 1, the light control glass window W is a window that is placed in an opening BO in a building exterior wall BW and can adjust the amount of light entering the living space R of the building B. Specifically, a window sash 50 is attached to the opening BO in the building exterior wall BW, and the light control glass window W is fitted into the window sash 50 (FIG. 4). In this embodiment, the light control glass window W has a single-pane structure. The light control glass window W may be a fixed window that cannot be opened or closed, or may be an openable window.

The light control glass window W functions to increase or decrease the light transmittance according to the voltage applied via the power supply device 7 based on the principle of electrochromism. The power supply device 7 is connected to the control device 5 by wire or wirelessly and is capable of communicating with the control device 5. The voltage applied from the power supply device 7 to the light control glass window W is controlled by the control device 5. In other words, the light transmittance of the light control glass window W is controlled by the control device 5.

In this embodiment, a case will be described in which the light control glass window W has a transmissive electrochromic element. In this case, when the power supply device 7 receives an instruction from the control device 5 to increase the voltage applied to the light control glass window W, the light transmittance of the light control glass window W increases. As a result, for example, the light control glass window W becomes transparent (FIG. 4(a)). On the other hand, when the power supply device 7 receives an instruction from the control device 5 to reduce the voltage applied to the light control glass window W, the light transmittance of the light control glass window W decreases. As a result, for example, the light control glass window W becomes like frosted glass (FIG. 4(b)). Note that when no voltage is applied to the light control glass window W, the light transmittance of the light control glass window W is at a minimum.

As described above, the control device 5 is communicatively connected to the winding device 3, the ventilation device 4, and the power supply device 7, and controls the operation of the winding device 3, the ventilation device 4, and the power supply device 7. A sensor 40 is communicatively connected to the control device 5. Examples of the sensor 40 include a solar radiation sensor and a temperature sensor. The control device 5 controls the operation of the winding device 3, the ventilation device 4, and the power supply device 7 according to the measurement results of the sensor 40.

<Operation of the ventilation type temperature control device 1>
The operation of the ventilation type temperature control device 1 will now be described.

The control device 5 acquires the status of the building B from the sensor 40, and operates the winding device 3 according to the acquired status to roll up or down the roller blind 2. The status of the building B may take into account the temperature inside the building B measured by a temperature sensor, the amount of solar radiation measured by a solar radiation sensor, etc.

As an example, in summer, when the temperature in the living space R of building B is higher than a preset threshold, or in winter, when the temperature in the living space R of building B is lower than a preset threshold, the control device 5 operates the winding device 3 to wind down the roller blind 2. This reduces the amount of light entering the living space R from outside building B in summer, thereby preventing an excessive rise in temperature in living space R. Also, in winter, the amount of heat released from living space R to the outside of building B is reduced, thereby preventing an excessive drop in temperature in living space R.

In addition, the control device 5 acquires the status of the building B from the sensor 40 and operates or stops the ventilation device 4 according to the acquired status.

As an example, in the summer, when the amount of solar radiation is higher than a preset threshold, the control device 5 operates the ventilation device 4 to suck in the warm air stagnating in the ventilation space S. This reduces the amount of warm air stagnating in the ventilation space S, thereby suppressing excessive temperature rise in the living space R.

As another example, in winter, when the amount of solar radiation is lower than a preset threshold, the control device 5 stops the ventilation device 4. This causes air to stagnate in the ventilation space S, thereby preventing an excessive drop in temperature in the living space R.

In addition, the control device 5 acquires the status of the building B from the sensor 40, and operates the power supply device 7 according to the acquired status to change the light transmittance of the light control glass window W.

As an example, in summer, when the temperature in the living space R of the building B is higher than a preset threshold value, or when the amount of solar radiation is higher than a preset threshold value, the control device 5 stops the application of voltage from the power supply device 7 to the light control glass window W and reduces the light transmittance of the light control glass window W. As a result, light from outside the building B is reflected and absorbed by the light control glass window W, thereby preventing excessive temperature rise in the living space R.

As another example, in summer, when the temperature in the living space R of the building B is lower than a preset threshold value, or when the amount of solar radiation is lower than a preset threshold value, the control device 5 causes the power supply device 7 to apply a voltage to the light control glass window W, thereby increasing the light transmittance of the light control glass window W. This allows light from outside the building B to easily pass through the light control glass window W, thereby preventing an excessive drop in temperature in the living space R.

＜Effects＞
In each of the above embodiments, the following aspects are disclosed.

(Aspect 1)
The ventilation-type temperature control device 1 comprises a dimming window W that is arranged at an opening BO in a building exterior wall BW and is capable of adjusting the amount of light entering a living space R of the building B, a shielding member 2 that is arranged to extend vertically on the living space R side of the dimming window W and is movable between an open state in which the dimming window W is exposed to the living space R side and a closed state in which the dimming window W is shielded from the living space R side, and a ventilation device 4 that draws in air from the living space R through a ventilation space S between the dimming window W and the shielding member 2.

With the above configuration, when it is desired to keep the temperature of the living space R low, such as in summer, the light control window W can be used to block light and prevent radiant heat from being transmitted to the shielding member 2. This makes it possible to prevent radiant heat from entering the living space R. For this reason, there is no need to place blinds in the ventilation space S, and the ventilation space S can be made narrower by the thickness of the blinds. This makes it possible to avoid narrowing the living space R.

In addition, by opening the shielding member 2, access to the light control glass window W becomes possible. This makes it easy to perform maintenance and inspection of the light control window W and cleaning of the ventilation space S, etc.

Here, when light is absorbed by the light control glass window W, the temperature of the light control glass window W rises. As a result, there is a risk that the living space R will be heated by radiant heat from the light control glass window W through the ventilation space S and the shielding member 2. In particular, in the summer, the temperature of the light control glass window W rises significantly, and the thermal environment in the living space R may deteriorate.

In this regard, in the configuration of aspect 1, by closing the shielding member 2 in the summer, the air stagnating in the ventilation space S becomes warmer than the air in the living space R. As a result, the air stagnating in the ventilation space S rises due to the chimney effect. Thus, as shown by the arrows in FIG. 1, the air in the living space R is sucked in through the ventilation clearance and supplied to the ventilation space S, and the air that has risen in the ventilation space S is discharged to the outside of the building B, etc. In this way, the warm air in the ventilation space S can be sent out to the outside of the building B, etc., thereby improving the thermal environment in the living space R.

Furthermore, in the configuration of aspect 1, the ventilation device 4 draws air from the living space R through the ventilation space S, thereby promoting the flow of air in the ventilation space S. This, in combination with the chimney effect, increases the amount of ventilation in the ventilation space S, thereby increasing the amount of exhaust heat. In this way, the ventilation device 4 increases the amount of ventilation in the ventilation space S, so that the warm air in the ventilation space S can be efficiently sent out to the outside of the building B, etc. As a result, the warm air in the ventilation space S can be efficiently sent out to the outside of the building B, etc., so that the surface temperature of the shielding member 2 can be made very close to the temperature of the living space R, and a good thermal environment can be obtained even in the perimeter area P in the summer.

On the other hand, if you want to keep the living space R warm in winter, you can operate the ventilation device 4 while closing the shielding member 2, so that the cold air in the ventilation space S does not leak into the living space R, but is discharged to the outside while mixing with the air sucked in from the ventilation clearance below the shielding member 2. Therefore, the surface temperature of the shielding member 2 can be made very close to the temperature of the living space R, so that a good thermal environment can be obtained even in the perimeter area P in winter.

(Aspect 2)
In the first aspect, when the shielding member 2 is in the closed state, the ventilation device 4 draws in air from the living space R through the space between the light control window W and the shielding member 2 .

When the roller blind 2 is closed and the ventilation space S enclosed by the roller blind 2 and the light-control glass window S is at its maximum, the amount of warm or cold air trapped in this ventilation space S is also at its maximum. Therefore, when the roller blind 2 is closed, the amount of radiant heat transmitted to the living space R via the warm or cold air trapped in the ventilation space S is also at its maximum. Even in such a case, in aspect 2, when the roller blind 2 is closed, the ventilation device 4 exhausts the air in the ventilation space S to the outside, etc. Therefore, excessive temperature increases and decreases in the living space R can be suppressed.

(Aspect 3)
In the first or second aspect, the shielding member 2 is configured to be movable in the vertical or horizontal direction, and a device for moving the shielding member 2 is further provided.

By adopting the above configuration, when the shielding member 2 is opened, the shielding member 2 does not move toward the living space R. Therefore, there is no need to prepare a space for opening and closing the shielding member 2 on the living space R side. This makes it possible to avoid narrowing the living space R.

(Aspect 4)
In any of the aspects 1 to 3, the shielding member 2 is a roller blind 2 that is suspended from the upper part of the building B and is movable in the vertical direction.

The roller blind 2 does not have a complicated structure, so the above structure makes it easy to install the shielding member 2 and reduces installation costs.

(Aspect 5)
In any one of aspects 1 to 4, the light control window W is a light control glass window W or a light control film attached to a glass window.

By adopting the above configuration, the light control window W can block light, and the shielding member 2 is less susceptible to the effects of heat from direct sunlight. Furthermore, the shielding member 2 is not exposed to direct sunlight, and the surface temperature of the shielding member 2 can be kept very close to the temperature of the living space R, improving the thermal environment in the perimeter area P.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the ventilation type temperature control device 1 according to the above embodiment, but includes all aspects included in the concept of the present invention and the scope of the claims. In addition, each configuration may be appropriately and selectively combined to achieve at least some of the above-mentioned problems and effects. For example, the shape, material, arrangement, size, etc. of each component in the above embodiment may be appropriately changed depending on the specific aspect of the present invention.

In the above embodiment, a roller blind 2 is used as the shielding member, but other types of members may be used as the shielding member. For example, curtains, blinds, shades, etc. When a curtain is used as the shielding member, as an example, the curtain may be configured to be movable in the left-right direction.

In addition, the shielding member is not limited to woven fabric, but can be made of various materials and shapes, such as metal, plastic, or plate members instead of thread.

In the above embodiment, the control device 5 controls the operation of the winding device 3, the ventilation device 4, and the power supply device 7 in accordance with the measurement results of the sensor 40. However, the winding device 3, the ventilation device 4, and the power supply device 7 may be manually operable by an operator.

In the above embodiment, the case where the light control glass window W has a transmissive electrochromic element has been described, but the light control glass window W may also have a reflective electrochromic element.

In the above embodiment, the case where the light control window is a light control glass window W has been described. However, the light control window may be composed of a glass window and a light control film attached to the glass window. In this case, the light control film is attached to the inner surface of the glass window facing the room. It is sufficient that the light control film is attached to at least one of the glass windows. The principle of increase and decrease in light transmittance in the light control film is the same as in the case of the light control glass window W described above.

In the above embodiment, the case where the light control glass window W is single-pane glass has been described, but the light control glass window W may be double-pane glass or may be composed of triple or more layers of glass. In this case, the light control window is provided with a glass window on the side facing the outside air of building B, and a light control glass window W or a light control film is provided on the side facing the interior of building B.

In the above embodiment, the ventilation device 4 is described as being installed above the ceiling plate U. However, the ventilation device 4 may be installed, for example, outside the building B.

In the above embodiment, the ventilation device 4 receives an instruction from the control device 5 and performs ventilation operation when the roller blind 2 is in the closed state. However, in addition to performing ventilation operation when the roller blind 2 is in the closed state, the ventilation device 4 may also perform ventilation operation when the roller blind 2 is in the open state.

1 Ventilation type temperature control device, 2 Roll screen (shielding member), 3 Rolling device (device), 4 Ventilation device, B Building, BW Building exterior wall, BO Opening, R Living space, S Ventilation space (space between light control window and shielding member), W Light control glass window (light control window)

Claims (5)

A light control window is disposed in an opening in an exterior wall of a building and is capable of adjusting the amount of light entering a living space of the building;
a shielding member that is disposed so as to extend vertically on the living space side of the light control window and that is movable between an open state in which the light control window is exposed to the living space side and a closed state in which the light control window is shielded from the living space side;
and a ventilation device that draws air from the living space through a space between the light control window and the shielding member.
A ventilation type temperature control device characterized by the above. In the closed state, the ventilation device draws in air from the living space through a space between the light control window and the shielding member.
The ventilation type temperature control device according to claim 1. The shielding member is configured to be movable in an up-down direction or a left-right direction,
Further comprising a device for moving the shielding member.
The ventilation type temperature control device according to claim 1. The shielding member is a roller blind suspended from the upper part of the building and movable in the vertical direction.
The ventilation type temperature control device according to claim 3. The light control window is a light control glass window or a light control film attached to a glass window.
The ventilation type temperature control device according to claim 1.

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