JP4460281B2 - Airflow system - Google Patents

Description

  The present invention relates to an airflow system. The airflow system according to the present invention can be suitably applied to a window glass for ordinary houses.

  For windows of high-rise buildings such as condominiums, apartments and buildings, a double window structure type airflow window may be used in order to reduce the air conditioning load in the room and save energy etc. (for example, Patent Document 1).

  This airflow window can be moved up and down to an opening frame attached to the window opening, an outdoor shoji (glass) and an indoor shoji (glass) arranged with a gap in the opening frame, and a gap between the shoji And a blind as a light shielding means. The outdoor shoji and the indoor shoji are respectively fitted on sash cages fixed to the opening frame, and between the lower heel of the sash cage on which the indoor shoji is fitted and the lower frame of the opening frame, Ventilation holes that communicate the airflow passage formed by the gap between the shoji and the indoor space are formed. Further, the air flow passage communicates with an exhaust duct attached to the upper frame of the opening frame.

  Thus, in the airflow window, indoor air can be exhausted to the outside or supplied to a heat exchange device via the vent, the airflow passage, and the exhaust duct. The indoor air filled in the airflow passage functions as an air curtain layer that effectively blocks the interior and the exterior, thereby preventing the indoor environment from being deteriorated by the outside air environment.

  Moreover, the curtain wall structure provided with the airflow system is also used for windows, such as a high-rise building (for example, refer patent document 2).

  This curtain wall structure is attached as it is to the window opening as a panel unit manufactured in advance at the factory. The opening frame attached to the window opening, the window glass disposed in the opening frame, the opening frame An upper horizontal air passage forming member that is fixed to the indoor side along the upper frame of the body and has a lower opening, and the lower opening can be opened and closed by being arranged in the lower opening of the upper horizontal air passage forming member. An upper shutter, a lower horizontal air passage forming member having an upper opening fixed along the lower frame of the opening frame, and an upper opening of the lower horizontal air passage forming member. A lower shutter capable of opening and closing the upper opening, a pair of hollow mullions (vertical columns) each having a longitudinal air passage communicating with each transverse air passage of each transverse air passage forming member, and a vicinity of the upper end of the hollow mullion Exhaust passage and exhaust fan leading to the vertical air passage An exhaust duct having includes a curtain box which is fixed to the interior side of the upper side wind passage forming member, and this is accommodated in the curtain box vertically movable shielding means (rolling screen). Then, the roll screen as the light shielding means descends to form a partition space partitioned from the indoor space between the roll screen and the window glass, and the upper and lower horizontal air passage forming members and the mullion are arranged in the partition space. It is installed.

In the curtain wall structure, for example, in winter, the roll screen is fully closed, and the exhaust fan is operated with the upper side airway upper shutter closed and the lower side airflow lower shutter opened. The room air that has entered the partition space from the gaps on both sides of the roll screen is sucked into the lower side air passage from the upper opening of the lower side air passage forming member together with the cold draft (cold air) descending along the inner surface of the glass, It is discharged to the outside through the vertical air passage of the hollow mullion and the exhaust passage of the exhaust duct. In summer, the roll screen is lowered with a gap between the floor and the exhaust fan is operated with the upper shutter of the upper horizontal air passage opened and the lower shutter of the lower horizontal air passage closed. As a result, the room air that has entered the partition space from the gap below the roll screen is sucked into the upper side air passage from the lower opening of the upper side air passage forming member together with the air heated by the solar radiation, and is exhausted from the exhaust duct. It is discharged out of the room through the passage. In this way, by switching the exhaust system by opening and closing the upper and lower shutters provided in the upper and lower horizontal air passages in winter and summer, the cold draft is prevented from flowing into the room in winter, while in summer it becomes hot due to solar radiation. Further, it is said that a suitable indoor environment can be obtained throughout the winter and summer by discharging the air in the partition space to the outside.
Japanese Examined Patent Publication No. 7-21274 (page 2-3, Fig. 2) JP 2001-303704 A (page 4-5, FIG. 1)

  However, since the conventional curtain wall structure described above operates the air flow system regardless of the air temperature in the partition space, it cannot always be said that the air flow system can sufficiently reduce the air conditioning load in the room.

  That is, in the conventional curtain wall structure, for example, when the room is cooled in the summer, the air in the partition space is not hot because there is no solar radiation or the outside temperature is low. Even when it is not necessary to exhaust the air, the air in the indoor space is uniformly discharged to the outside through the partition space or the like by the operation of the air flow system. For this reason, the indoor air cooled by the cooling is unnecessarily discharged to the outside of the room, which may cause energy loss. In this case, the air conditioning load in the room is increased.

  The present invention has been made in view of the above circumstances, and it is a technical problem to be solved by reliably reducing an air conditioning load in a room without incurring energy loss by appropriately operating an airflow system. is there.

An airflow system of the present invention that solves the above-described problems is disposed in an indoor opening at a position spaced from the window opening so as to freely move up and down. The indoor opening can be opened and closed by raising and lowering to the lowest position. A closed space partitioned from the living room space is formed with the outdoor shoji disposed in the window opening in the fully closed state while being lowered, and is held at a gap forming position that is raised by a predetermined amount from the lowest position. A heat insulating screen that forms a ventilation gap at the bottom of the indoor opening in the state and forms an airflow passage between the outdoor shoji and the airflow passage through the ventilation gap, and lifts and lowers the heat insulating screen. A screen driving means to be operated; a temperature sensor disposed in the gap between the outdoor shoji and the heat insulating screen; a suction port opened above the gap; and the suction port disposed in the suction port Open and close , A shutter driving means for opening and closing the shutter, an exhaust fan capable of sucking air through the suction port, an exhaust means having a fan driving means for driving the exhaust fan, and a temperature detected by the temperature sensor. based on the screen driving unit, by automatically controlled by interlocking the shutter driving means and said fan driving means, the exhaust fan is in a state where the shutter is opened and the insulation screen is held in the gap formation position Control means capable of selectively switching between an operating airflow operation state and an operation standby state in which the exhaust fan stops in a state where the shutter is closed and the heat insulating screen is held at the lowest position. It is characterized by that.

  Here, the heat insulation screen means a screen having a heat insulation function, and does not necessarily mean that the screen can be completely insulated.

  In a preferred aspect, the temperature sensor is disposed at a position where temperature rise due to solar radiation can be detected.

  In a preferred aspect, the rotational speed of the exhaust fan is variable, and the control means is configured to adjust the rotational speed of the exhaust fan by controlling the fan driving means in accordance with a temperature detected by the temperature sensor. Has been.

  In a preferred aspect, the control means is configured so that the ventilation gap is formed when the heat insulation screen located at the lowest position rises from the lowest position to the gap formation position for a certain period of time. A timer function is provided for operating the screen driving means for a predetermined time.

  In a preferred aspect, the control means selects the airflow operation state when the temperature detected by the temperature sensor at the start of operation is equal to or higher than a first set temperature or exceeds the first set temperature, When the detected temperature at the start of operation is lower than the first set temperature or lower than the first set temperature, the operation standby state is selected, and the detected temperature is set to the first set temperature during airflow operation. When the temperature drops below the second set temperature lower than or lower than the second set temperature, the airflow operation state is switched to the operation standby state, while the detected temperature is changed to the first set temperature during operation standby. When the temperature rises above or when the temperature rises to a temperature exceeding the first set temperature, the operation standby state is switched to the airflow operation state.

  In a preferred aspect, the control means selects the airflow operation state when the detected temperature of the temperature sensor at the start of operation is equal to or higher than a set temperature, or exceeds the set temperature, while at the start of operation. When the detected temperature is lower than the set temperature or lower than the set temperature, the operation standby state is selected, and when the detected temperature falls below the set temperature during the air flow operation, or lower than the set temperature. Is switched from the airflow operation state to the operation standby state, while the operation temperature standby state when the detected temperature rises above the set temperature or exceeds the set temperature during operation standby. To the air flow operation state.

  In a preferred aspect, the airflow system of the present invention maintains an airflow switch that enables automatic control of the screen driving means, the shutter driving means, and the fan driving means by the control means, and the shutter is opened. An operation panel for operating mode switching is provided, which includes a ventilation switch for operating the exhaust fan, and a stop switch for stopping the operation of the exhaust fan while keeping the shutter closed.

  In a preferred aspect, the operation panel includes a screen raising / lowering switch for arbitrarily raising and lowering the heat insulating screen by driving the screen driving means.

  In a preferred aspect, the exhaust means has an exhaust duct disposed in a ceiling portion, the suction port is formed at one end side of the exhaust duct, and the exhaust fan is disposed in the exhaust duct. ing.

In a preferred aspect, the exhaust means has a housing disposed in the window opening and above the outdoor shoji, and the suction port is formed on one side surface of the housing, and the housing is provided in the housing. The exhaust fan is disposed, and an exhaust port is constituted by a part of the window opening .

According to the airflow system of the present invention, the temperature between the outdoor shoji and the heat insulating screen, that is, the air temperature in the sealed space or the airflow passage is detected by the temperature sensor, and the control means detects the exhaust based on the detected temperature. By determining whether it is necessary and automatically controlling the screen driving means, the shutter driving means, and the fan driving means, the air flow can be activated at an appropriate timing.

  Therefore, when there is no need to exhaust, the air flow does not work unnecessarily, resulting in energy loss, and the air conditioning load in the room can be reliably reduced to save energy.

Further, since the operation in such an airflow system can be automatically controlled by the control means, a troublesome operation by the user is unnecessary, and the optimum energy saving operation can always be easily continued .

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

(Embodiment 1)
In this embodiment shown in FIGS. 1 to 3, the airflow system according to the present invention is applied to a large opening window of a general house. FIG. 1 is a cross-sectional view showing a schematic configuration of the airflow system of the present embodiment together with a part of a building.

  As shown in FIG. 1, a heat insulating sash 2 as an opening frame is attached to a window opening of a building that forms a living room space 1, and a large heat insulating function is provided in the heat insulating sash 2 with a double window structure. An outdoor shoji 3 made of high-performance glass with an opening is fitted.

  And the heat insulation screen 4 is arrange | positioned so that raising / lowering is freely possible in the indoor opening part of the position spaced apart from the window opening part (about 10 cm). This heat insulating screen 4 is made of an accordion type polyester non-woven fabric having a honeycomb structure with no air permeability, a high heat insulating function, and a light shielding rate of about 70% (light transmittance of about 30%). . The heat insulating screen 4 can be housed in a box 6 attached in the vicinity of the ceiling 5 and can be moved up and down by expansion and contraction of a bellows structure by a screen driving means (not shown). Specifically, the screen driving means is composed of a hanging string and a motor-driven winding device capable of winding and rewinding the hanging string, and the heat insulating screen 4 is rotated by rotating the motor forward and backward. Raise and lower. Thus, the heat insulating screen 4 can open and close the indoor opening by its own raising and lowering, and forms a sealed space 8a partitioned from the living room space 1 with the outdoor shoji 3 in the fully closed state lowered to the lowest position. On the other hand, a ventilation gap 9 is formed at the bottom of the indoor opening while being held at a gap formation position (a state shown in FIG. 1) that is raised by a predetermined amount (about 1 to 2 cm) from the lowest position. An air flow passage 8 communicating with the living room space 1 through the clearance 9 is formed between the outdoor shoji 3 and the outdoor shoji 3.

  The heat insulating screen 4 has a width equivalent to the width of the indoor opening, and has a length that can reach the floor surface 7 of the indoor opening when lowered to the lowest position. For this reason, in the fully closed state in which the heat insulating screen 4 is lowered to the lowest position, the lower end of the heat insulating screen 4 reaches the floor surface 7 and both end surfaces of the heat insulating screen 4 abut against both side walls of the indoor opening. Thus, the sealed space 8 a is formed between the heat insulating screen 4 and the outdoor shoji 3. Further, in a state where the heat insulating screen 4 is held at a gap forming position that is raised by a predetermined amount from the lowest position, the ventilation gap 9 is formed and communicates with the living room space 1 only through the ventilation gap 9. The air flow passage 8 is formed.

  In the gap (sealed space 8a or airflow passage 8) between the outdoor shoji 3 and the heat insulating screen 4, a position where the temperature rise due to solar radiation can be detected and the temperature rise of air is most easily detected, specifically A temperature sensor 10 made of a thermistor or the like is disposed near the ceiling 5. An exhaust means 11 is disposed on the ceiling 5 of the gap. The exhaust means 11 includes an exhaust duct 12 attached to the ceiling portion 5, and a suction port 13 a that opens to the gap is provided on one end side of the exhaust duct 12. A shutter 14 that can open and close the suction port 13a is attached to the suction port 13a. The exhaust duct 12 has a discharge port 13b on the other end side, and an exhaust fan 15 is attached in the vicinity of the discharge port 13b. The shutter 14 can be opened and closed by an actuator as shutter driving means (not shown), and the exhaust fan 15 can be rotated at an arbitrary rotational speed by a servo motor as fan driving means (not shown), that is, the rotational speed is variable. Has been.

  The screen driving means, the shutter driving means, and the fan driving means can be automatically controlled by a control means 16 having a CPU, a ROM, a RAM, a comparison operation function, and the like. Further, a detection signal from the temperature sensor 10 is input to the control means 16. Thus, the control means 16 can automatically control the operations of the screen drive means, shutter drive means and fan drive means based on the detected temperature of the temperature sensor 10, and these screen drive means and shutter drive based on the detected temperature. By automatically controlling the means and the fan driving means, the air flow operation state in which the exhaust fan 15 operates in a state where the shutter 14 is opened and the heat insulating screen 4 is held at the gap forming position, and the shutter 14 is closed and the heat insulating screen 4 is closed. Is configured to selectively switch between an operation standby state in which the exhaust fan 15 is stopped while being held at the lowest position.

  Specifically, the control means 16 includes a first set temperature (T1, for example, T1 = 50 ° C.) set and stored in advance and a second set temperature (T2, T2 <T1) lower than the first set temperature, For example, T2 = 40 ° C.) and the detected temperature of the temperature sensor 10 are compared, and the following control is performed.

  That is, as shown in FIG. 3, when the temperature detected by the temperature sensor 10 at the start of operation is equal to or higher than the first set temperature (T1) (or exceeds the first set temperature), the control means 16 While the airflow operation state is selected, the operation standby state is selected when the detected temperature at the start of operation is lower than the first set temperature (T1) (or when it is lower than the first set temperature). When the detected temperature falls below the second set temperature (T2, T2 <T1) (may be less than the second set temperature) during the airflow operation, the airflow operation state is switched to the operation standby state. On the other hand, when the detected temperature rises above the first set temperature (T1) during operation standby (or when the temperature rises to a temperature exceeding the first set temperature), the operation standby state is switched to the airflow operation state.

  Further, the control means 16 is configured so that the ventilation gap 9 is formed when the heat insulating screen 4 located at the lowest position rises from the lowest position to the gap formation position for a certain time, and the gap formation position. A timer function is provided for operating the screen driving means for a predetermined time so that the heat insulating screen located in is fully closed by descending from the gap formation position to the lowest position for a predetermined time.

  Furthermore, the airflow system according to the present embodiment includes an operation panel 17 for switching operation modes. The operation panel 17 includes an air flow switch 18, a ventilation switch 19, a stop switch 20, an on-screen switch 21a, and an on-screen switch 21b. The screen up / down switch 21a and the screen down switch 21b constitute a screen up / down switch. The operation panel 17 is connected to the control means 16, and switching signals from the switches 18, 19, 20, 21 a and 21 b are input to the control means 16. The operator can select an operation mode as shown in Table 1 below by operating a switch on the operation panel 17.

  The airflow switch 18 is a switch for switching to an airflow mode that enables the control means 16 to automatically control the screen driving means, the shutter driving means, and the fan driving means. When the airflow switch 18 is pushed by the operator and the operation mode is in the airflow mode, the temperature detected by the temperature sensor 10 is always sent to the control means 16, and the control means 16 controls the airflow based on the detected temperature. Switch between the operation state and the operation standby state.

  The ventilation switch 19 is a switch for switching to a ventilation mode in which the exhaust fan 15 is operated while the shutter 14 is kept open. When the ventilation switch 19 is pressed while the shutter 14 is already open and the exhaust fan 15 is operating (when in the airflow operation state) during the automatic operation in the airflow mode, The shutter 14 and the exhaust fan 15 are maintained as they are. On the other hand, when the ventilation switch 19 is pressed when the shutter 14 is closed and the exhaust fan 15 is not operating (in the operation standby state) during the automatic operation in the airflow mode, When the ventilation switch 19 is pressed during the stop mode in which 14 is closed and the exhaust fan 15 is stopped, the control means 16 receiving the operation signal of the ventilation switch 19 drives the shutter drive means and the fan drive means. The shutter 14 is opened and the exhaust fan 15 is operated.

  The stop switch 20 is a switch for switching to a stop mode in which the operation of the exhaust fan 15 is stopped while the shutter 14 is kept closed. If the stop switch 20 is pressed when the shutter 14 is closed and the exhaust fan 15 is not operating (when in the operation standby state) during automatic operation in the airflow mode, the shutter 14 and the exhaust fan 15 are maintained as they are. On the other hand, when the shutter 14 is open and the exhaust fan 15 is in operation during the automatic operation in the airflow mode (when the airflow operation is in progress), When the stop switch 20 is pushed during the ventilation mode in which the exhaust fan 15 is open and the exhaust fan 15 is operating, the control means 16 receiving the operation signal of the stop switch 20 drives the shutter drive means and the fan drive means. The shutter 14 is closed and the exhaust fan 15 is stopped.

  The on-screen switch 21a is a switch for arbitrarily raising the heat insulating screen 4 by driving the screen driving means when the operation mode is the ventilation mode or the stop mode. The lower screen switch 21b is a switch for arbitrarily lowering the heat insulating screen 4 by driving the screen driving means when the operation mode is the ventilation mode or the stop mode.

  Here, in summer and winter, from the viewpoint of further reducing the air conditioning load of the living room space 1, the shutter 14 is normally closed and the heat insulating screen 4 is in the fully closed state where the heat insulating screen 4 is at the lowest position. Preferably, the sealed space 8a is formed between the door and the outdoor shoji 3 and the exhaust fan 15 is stopped. By doing so, the room space 1 can be completely shut off from the outside, and the heat insulation function and the heat exchange function of the air curtain layer formed by the sealed space 8a can be effectively operated, so that the air conditioning load is more effective. Can be reduced.

  The operation of the airflow system configured as described above will be described below. For example, in the summer, when the airflow switch 18 is selected by the operator on the operation panel 17 and the airflow mode is selected, the following automatic operation is performed as shown in the flowchart of FIG.

  First, the control means 16 compares the temperature detected by the temperature sensor 10 when the air flow switch 18 is pressed with the first set temperature (T1) (S1).

  When the airflow switch 18 is pressed when the air in the sealed space 8a or the airflow passage 8 has already been heated by solar radiation and is sufficiently hot, that is, the temperature detected by the temperature sensor 10 at the start of operation. Is equal to or higher than the first set temperature (T1), the control means 16 selects the airflow operation state (S2), and automatically controls the screen drive means, shutter drive means, and fan drive means, so that the shutter 14 The exhaust fan 15 is operated in a state where the heat insulating screen 4 is opened and held at the gap forming position. At this time, in this embodiment, the rotational speed of the exhaust fan 15 is constant, and the amount of exhaust air by the exhaust fan 15 is constant.

  At the start of the operation, if the shutter 14 is opened and the exhaust fan 15 is already in operation, the state is maintained as it is. On the other hand, if the shutter 14 is closed and the exhaust fan 15 is stopped, the shutter 14 is opened. And the exhaust fan 15 is operated. In addition, when the heat insulating screen 4 is already held at the gap forming position at the start of the operation, the state is maintained as it is, while when the heat insulating screen 4 is not held at the gap forming position, the heat insulating screen 4 is maintained. Is raised or lowered by a predetermined amount and held at the gap forming position. At this time, when the heat insulating screen 4 is at the lowermost position, the timer function is operated to raise the heat insulating screen 4 at the lowermost position for a predetermined time and hold it at the gap forming position.

  In the airflow operation state thus selected, the high-temperature air in the airflow passage 8 that is formed between the outdoor shoji 3 and the heat insulating screen 4 and communicates with the living room space 1 only through the ventilation gap 9 is removed from the ventilation gap. 9 is sucked into the exhaust duct 12 through the suction port 13 a by the exhaust fan 15 together with the air that has entered the room space 1 through 9, and is discharged to the outside from the exhaust port 13 b of the exhaust duct 12. For this reason, the air temperature in the airflow passage 8 heated by solar radiation can be reduced. Therefore, it is possible to effectively suppress the air in the living room space 1 from being heated by the air in the air flow passage 8 and to effectively reduce the air conditioning load in the living room space 1.

  In such an airflow operation state, the control means 16 compares the temperature detected by the temperature sensor 10 with the second set temperature (T2) (S3).

  When the air temperature in the air flow passage 8 is sufficiently lowered due to air flow operation or a decrease in the amount of solar radiation, that is, when the temperature detected by the temperature sensor 10 is equal to or lower than the second set temperature (T2), the control means 16 Is switched from the airflow operation state to the operation standby state (S4), the shutter 14 is closed, and the heat insulating screen 4 is lowered by a predetermined amount from the gap forming position and held at the lowermost position (the outdoor shoji 3 and the heat insulating screen). The exhaust fan 15 is stopped in a state in which the sealed space 8a is formed between the two and the same. At this time, the timer function is activated to lower the heat insulating screen 4 located at the gap forming position to the lowest position for a predetermined time. On the other hand, when the detected temperature exceeds the second set temperature (T2), the control means 16 maintains the airflow operation state as it is (S2).

  In the operation standby state thus switched, since the sealed space 8a is formed between the outdoor shoji 3 and the heat insulating screen 4 and the shutter 13a is closed, the living room space 1 is completely shut off from the outside, The air in the living room space 1 cooled by the cooling is unnecessarily discharged outside the room, so that energy loss is not caused.

  In this operation standby state, the control means 16 compares the temperature detected by the temperature sensor 10 with the first set temperature (T1) (S5).

  When the detected temperature rises again to the first set temperature (T1) or higher, the control means 16 switches from the operation standby state to the airflow operation state again (S2), opens the shutter 14 and moves the heat insulating screen 4 to the lowest position. The exhaust fan 15 is operated in a state where it is raised by a predetermined amount from the position and held at the gap forming position. At this time, the timer function is operated to raise the heat insulating screen 4 at the lowest position to the gap forming position for a certain period of time. On the other hand, when the detected temperature is lower than the first set temperature (T1), the control means 16 maintains the operation standby state as it is (S4).

  On the other hand, when the temperature detected by the temperature sensor 10 at the start of operation is lower than the first set temperature (T1), the control means 16 selects the operation standby state (S6), and the screen drive means, shutter drive means and fan are selected. By automatically controlling the driving means, the exhaust fan 15 is stopped in the fully closed state in which the shutter 14 is closed and the heat insulating screen 4 is held at the lowest position.

  At the start of the operation, if the shutter 14 is closed and the exhaust fan 15 is stopped, the state is maintained. On the other hand, if the shutter 14 is open and the exhaust fan 15 is operating, the shutter 14 is closed and The exhaust fan 15 is stopped. Further, at the start of the operation, when the heat insulating screen 4 is already held at the lowermost position, the state is maintained, while when the heat insulating screen 4 is not held at the lowermost position, the heat insulating screen 4 is maintained. Is raised or lowered by a predetermined amount and held at the lowest position. At this time, when the heat insulating screen 4 is at the gap forming position, the timer function is operated to lower the heat insulating screen 4 at the gap forming position for a predetermined time and hold it at the lowest position.

  In this operation standby state, the control means 16 compares the temperature detected by the temperature sensor 10 with the first set temperature (T1) (S7).

  When the detected temperature becomes equal to or higher than the second set temperature (T1), the control means 16 switches from the operation standby state to the airflow operation state (S8), opens the shutter 14 and moves the heat insulating screen 4 from the lowest position. The exhaust fan 15 is operated in a state where it is raised by a predetermined amount and held at the gap forming position. At this time, the timer function is operated to raise the heat insulating screen 4 at the lowest position to the gap forming position for a certain period of time. On the other hand, when the detected temperature is lower than the first set temperature (T1), the control means 15 maintains the operation standby state as it is.

  In this airflow operation state, the control means 16 compares the temperature detected by the temperature sensor 10 with the second set temperature (T2) (S9).

  When the detected temperature becomes equal to or lower than the second set temperature (T2), the control means 16 switches from the airflow operation state to the operation standby state (S2), closes the shutter 14 and moves the heat insulating screen 4 from the gap forming position. The exhaust fan 15 is stopped while being lowered by a predetermined amount and held in the fully closed position. At this time, the timer function is activated to lower the heat insulating screen 4 located at the gap forming position to the lowest position for a predetermined time. On the other hand, when the detected temperature exceeds the second set temperature (T2), the control means 16 maintains the airflow operation state as it is (S8).

  Thus, when the operation mode is the air flow mode, the operation of the screen driving means, the shutter driving means, and the fan driving means is automatically controlled based on the temperature detected by the temperature sensor 10, so that the air flow operation state and the operation standby state are established. Can be switched appropriately. For this reason, when it is not necessary to exhaust, the air flow does not work unnecessarily and causes energy loss, and the air conditioning load in the living room space 1 can be surely reduced to save energy.

  Further, since the operation in such an airflow system can be automatically controlled by the control means 16, a troublesome operation by the user is not required, and it is possible to always easily continue the optimum energy saving operation.

  Further, in this airflow system, the control means 16 is configured to raise the heat insulating screen 4 from the lowest position to the gap forming position using a timer function, and therefore a limit switch for positioning the heat insulating screen 4 at the gap forming position. Etc. becomes unnecessary, and the structure is simplified correspondingly.

  In addition, the operator can freely select the operation mode of the airflow system by operating the operation panel 17.

  For example, when the operation mode is in the airflow mode as described above or in the stop mode, the operator presses the ventilation switch 19 to enter the ventilation mode, whereby the ventilation gap 9, the airflow passage 8, the suction port 13a, The air in the living room space 1 can be exhausted to the outside through the exhaust duct 12 and the exhaust port 13b for forced ventilation. For this reason, it becomes unnecessary to provide ventilation means in the living room space 1 separately.

  In addition, when the operation mode is the airflow mode or the ventilation mode, the operator can stop the operation of the airflow system at any time by pressing the stop switch 20 to enter the stop mode. In this stop mode, the shutter 14 is closed and the heat insulating screen 4 is fully closed, so that the living room space 1 can be completely blocked from the outside. For this reason, for example, if the stop mode is selected when it is desired to rapidly cool the interior of the living room space 1, the interior of the living room space 1 can be effectively cooled rapidly.

  Furthermore, when the operation mode is the ventilation mode or the stop mode, the operator can freely select the open / close state of the heat insulating screen 4 by pressing the on-screen switch 21a or the on-screen switch 21b, and the amount of solar radiation can be increased. Accordingly, the brightness in the living room space 1 can be adjusted freely.

  In winter, since the airflow system operation mode is set to the stop mode, the sealed space 8a formed between the outdoor shoji 3 and the heat insulating screen 4 functions as an air curtain layer having a heat insulating function. The air conditioning load in the space 1 can be effectively reduced.

  And according to this embodiment, the air curtain layer which has a heat insulation function and a heat exchange function is provided between this heat insulation screen 4 and the outdoor shoji 3 by the heat insulation screen 4 arrange | positioned so that raising / lowering is possible in an indoor opening part. Therefore, the air curtain layer can be easily formed with a simpler structure as compared with the case where the air curtain layer is formed by a double window structure or a frame. Note that a similar air curtain layer can be formed even if a blind is used instead of a heat insulating screen, but in the case of a blind, the air permeability cannot be completely eliminated due to the presence of gaps between the blades, so the heat insulating function Inferior heat exchange function. In this embodiment, which employs the heat insulating screen 4, air permeability is improved by eliminating a gap between the both side end surfaces of the heat insulating screen 4 and the indoor side wall surface or between the lower end surface of the heat insulating screen 4 and the floor surface. It can be eliminated completely, and the heat insulation function and heat exchange function in the air curtain layer can be sufficiently improved.

(Embodiment 2)
The airflow system according to the present embodiment shown in FIG. 4 has the same configuration as that of the first embodiment except that the configuration of the exhaust means 11 is changed.

  In this airflow system, an exhaust means 11 is disposed above the heat insulating sash 2 as an opening frame that is disposed in the window opening and into which the outdoor shoji 3 is fitted. That is, a concave step is formed in the upper part of the heat insulating sash 2, and an opening formed between the concave step and the upper end surface of the window opening is an exhaust port 13b. The exhaust port 13b A housing 22 is disposed so as to cover. A suction port 13a that opens to the sealed space 8a (air flow passage 8) is provided on the side surface of the housing 22 on the side of the living room space 1, and an exhaust fan 15 is disposed in the housing 22 near the exhaust port 13b. Yes. A shutter 14 that can open and close the suction port 13a is attached to the suction port 13a.

  According to this airflow system, the exhaust duct 12 can be omitted, and it is also possible to eliminate the need to provide an opening or the like in the ceiling portion 5 of the living room in order to attach the exhaust duct. Further, the exhaust port 13b is constituted by a part of the indoor opening, and a part of the indoor opening can be used as it is as the exhaust port 13b. For this reason, the structure of the exhaust means 11 becomes simple, and the structure for attaching the exhaust means 11 to the living room and the attaching method become simpler.

  Other functions and effects are the same as those of the first embodiment.

(Embodiment 3)
5 and 6, the air flow system according to the present embodiment is different from the air flow system according to the first embodiment or the second embodiment in that the control method by the control means 16 is changed and the exhaust fan 15 is changed according to the detected temperature. The exhaust air volume is adjusted, and other configurations are the same as those in the first embodiment or the second embodiment.

  The control means 16 in this airflow system compares the preset temperature stored and stored in advance (T, for example, T = 50 ° C.) with the temperature detected by the temperature sensor 10, and performs the following control.

  That is, as shown in FIG. 6, when the temperature detected by the temperature sensor 10 at the start of operation is equal to or higher than the set temperature (T) (when the temperature exceeds the first set temperature), the control means 16 performs the air flow operation. While the state is selected, the operation standby state is selected when the detected temperature at the start of operation is lower than the set temperature (T) (or lower than the set temperature). When the detected temperature falls below the set temperature (T) during the airflow operation (or when it falls below the set temperature), the airflow operation state is switched to the operation standby state, while the detection temperature is detected during the operation standby. When the temperature rises above the set temperature (T) (or when the temperature rises above the set temperature), the operation standby state is switched to the airflow operation state.

  The control means 16 is configured to control the fan drive means in accordance with the temperature detected by the temperature sensor 10 and adjust the rotational speed of the exhaust fan 15 in the airflow operation state. Specifically, the control means 16 controls the fan driving means according to the detected temperature so that the rotational speed of the exhaust fan 15 increases and the exhaust air volume increases as the detected temperature of the temperature sensor 10 increases. Control (control so that the rotation speed of the servo motor increases as the detected temperature increases). FIG. 6 shows an example in which the rotational speed of the exhaust fan 15 increases proportionally and the exhaust air volume increases proportionally as the detected temperature rises. The increase in the rotational speed of 15 (increase in the exhaust air volume) is not necessarily in a proportional relationship.

  In this airflow system, for example, in the summer, when the airflow switch 18 is selected by the operator pressing the operation panel 17 to select the airflow mode, the following automatic operation is performed as shown in the flowchart of FIG. Is called.

  First, the control means 16 compares the temperature detected by the temperature sensor 10 when the airflow switch 18 is pressed with the set temperature (T) (S10).

  When the airflow switch 18 is pressed when the air in the sealed space 8a or the airflow passage 8 has already been heated by solar radiation and is sufficiently hot, that is, the temperature detected by the temperature sensor 10 at the start of operation. Is equal to or higher than the set temperature (T), the control means 16 selects the airflow operation state (S11), and automatically controls the screen drive means, shutter drive means and fan drive means to open the shutter 14 and The exhaust fan 15 is operated in a state where the heat insulating screen 4 is held at the gap forming position. At this time, if the detected temperature is high, the control means 16 increases the rotational speed of the exhaust fan 15 and increases the exhaust air volume by increasing the rotational speed of the servo motor as the fan driving means accordingly.

  In such an airflow operation state, the control means 16 compares the temperature detected by the temperature sensor 10 with the set temperature (T) (S10).

  When the air temperature in the air flow passage 8 is sufficiently lowered due to the air flow operation or the decrease in the amount of solar radiation, that is, when the temperature detected by the temperature sensor 10 is lower than the set temperature (T), the control means 16 performs the air flow. The operation state is switched from the operation state to the operation standby state (S13), the exhaust fan 15 is stopped in the fully closed state in which the shutter 14 is closed and the heat insulating screen 4 is lowered by a predetermined amount from the gap forming position and held at the lowest position. On the other hand, when the detected temperature is equal to or higher than the set temperature (T), the control means 16 maintains the airflow operation state as it is (S11).

  On the other hand, when the temperature detected by the temperature sensor 10 at the start of operation is lower than the set temperature (T), the control means 16 selects the operation standby state (S13), and the screen drive means, shutter drive means, and fan drive means. Is automatically controlled, and the exhaust fan 15 is stopped in the fully closed state in which the shutter 14 is closed and the heat insulating screen 4 is held at the lowest position.

  In this operation standby state, the control means 16 compares the temperature detected by the temperature sensor 10 with the set temperature (T) (S10).

  When the detected temperature becomes equal to or higher than the set temperature (T), the control means 16 switches from the operation standby state to the airflow operation state (S11), opens the shutter 14 and moves the heat insulating screen 4 from the lowest position by a predetermined amount. The exhaust fan 15 is operated in a state where it is raised and held at the gap forming position. In this air flow operation as well, the fan driving means is controlled so that the rotational speed (exhaust air volume) of the exhaust fan 15 is adjusted according to the detected temperature.

  As described above, in the airflow system of the present embodiment, when in the airflow operation state, by adjusting the exhaust air volume of the exhaust fan 15 according to the detected temperature, if the detected temperature is high, the exhaust air volume of the exhaust fan 15 is adjusted accordingly. Since it can be increased, even if the air temperature in the sealed space 8a is excessively increased by solar radiation, the air temperature can be quickly reduced. Therefore, it is possible to more effectively reduce the air conditioning load in the living room space 1 and more effectively save energy.

  Other functions and effects are the same as those of the first embodiment or the second embodiment.

It is sectional drawing which showed schematic structure of the airflow system which concerns on Embodiment 1 of this invention with a part of building. 3 is a flowchart showing operation control in the airflow system according to the first embodiment. In the airflow system which concerns on the said Embodiment 1, it is explanatory drawing explaining a mode that a driving | running state changes based on detected temperature. It is sectional drawing which showed schematic structure of the airflow system which concerns on Embodiment 2 of this invention with a part of building. It is a flowchart which shows the operation control in the airflow system which concerns on Embodiment 3 of this invention. In the airflow system which concerns on the said Embodiment 3, it is explanatory drawing explaining a mode that a driving | running state changes based on detected temperature.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Living room space 3 ... Outdoor shoji 4 ... Heat insulation screen 8 ... Air flow passage 8a ... Sealed space 9 ... Gap for ventilation 10 ... Temperature sensor 11 ... Exhaust means 12 ... Exhaust duct 13a ... Suction port 13b ... Exhaust port 14 ... Shutter 15 ... Exhaust fan 16 ... Control means 17 ... Operation panel 18 ... Air flow switch 19 ... Ventilation switch 20 ... Stop switch 21a ... Switch on screen 21b ... Switch below screen 22 ... Housing

Claims (10)

The indoor opening can be moved up and down at a position spaced apart from the window opening, and the indoor opening can be opened and closed by raising and lowering, and is disposed in the window opening in the fully closed state lowered to the lowest position. A space for ventilation is formed at the bottom of the indoor opening while forming a sealed space partitioned from the living room space with the outdoor shoji installed while being held at a gap forming position that is raised by a predetermined amount from the lowest position. A heat insulating screen capable of forming an airflow passage between the outdoor shoji and the airflow passage leading to the living room space through the ventilation gap,
Screen driving means for raising and lowering the heat insulating screen;
A temperature sensor disposed in the gap between the outdoor shoji and the heat insulating screen;
A suction port that opens above the gap, a shutter that is disposed in the suction port and that can open and close the suction port, shutter driving means that drives the shutter to open and close, and an exhaust that can suck air through the suction port An exhaust means having a fan and a fan driving means for driving the exhaust fan;
Based on the temperature detected by the temperature sensor, the screen driving unit, the shutter driving unit, and the fan driving unit are automatically controlled in conjunction with each other to open the shutter and hold the heat insulating screen at the gap forming position. Selectively switching between an airflow operation state in which the exhaust fan operates in a closed state and an operation standby state in which the exhaust fan stops with the shutter closed and the heat insulating screen held at the lowest position. An air flow system, characterized in that it comprises a control means capable of.   The air flow system according to claim 1, wherein the temperature sensor is disposed at a position where temperature rise due to solar radiation can be detected.   The exhaust fan has a variable rotational speed, and the control means is configured to control the fan driving means in accordance with the temperature detected by the temperature sensor to adjust the rotational speed of the exhaust fan. The airflow system according to claim 1 or 2, characterized by the above.   The control means keeps the screen driving means constant so that the ventilation gap is formed when the heat insulation screen at the lowest position rises from the lowest position to the gap formation position for a certain time. The airflow system according to claim 1, 2, or 3, further comprising a timer function that operates only for a period of time. The control means selects the airflow operation state when the detected temperature of the temperature sensor at the start of operation is equal to or higher than the first set temperature or exceeds the first set temperature, while the control unit selects the airflow operation state. When the detected temperature is lower than the first set temperature or lower than the first set temperature, the operation standby state is selected, and the detected temperature is lower than the first set temperature during the airflow operation. When the temperature falls below the set temperature or when the temperature falls below the second set temperature, the airflow operation state is switched to the operation standby state, while the detected temperature rises above the first set temperature during operation standby. or claim 1 when raised to a temperature above the first set temperature, characterized in that it is configured to switch to the air flow operating condition from the operating standby state 2, 3 or 4 airflow system according. The control means selects the airflow operation state when the detected temperature of the temperature sensor at the start of operation is equal to or higher than a set temperature or exceeds the set temperature , while the detected temperature at the start of operation is with time setting or is below the set temperature when it is below the temperature is selected the operation standby state, when the detected temperature in air flow operation drops or below the set temperature when drops below the set temperature While switching from the airflow operation state to the operation standby state, the airflow operation state is changed from the operation standby state when the detected temperature rises above the set temperature or exceeds the set temperature during operation standby. air flow system according to claim 1, 2, 3 or 4, wherein it is configured to switch to. An airflow switch that enables automatic control of the screen drive means, the shutter drive means, and the fan drive means by the control means; a ventilation switch that operates the exhaust fan while maintaining the shutter open; The operation panel for operating mode switching provided with the stop switch which stops the action | operation of the said exhaust fan, maintaining a shutter in the closed state is provided, The 1, 2, 3, 4, 5 characterized by the above-mentioned. Or the airflow system of 6 . The air flow system according to claim 7 , wherein the operation panel includes a screen raising / lowering switch for driving the screen driving unit to arbitrarily raise and lower the heat insulating screen . The exhaust means has an exhaust duct disposed in a ceiling portion, the suction port is formed at one end side of the exhaust duct, and the exhaust fan is disposed in the exhaust duct. The airflow system according to claim 1, 2, 3, 4, 5, 6, 7, or 8 . The exhaust means includes an enclosure disposed above the outdoor shoji be within the window opening, the exhaust fan distribution in 該筺body with said suction port is formed on one side of the該筺body is set, the air flow system of claim 6, 7 or 8, wherein the exhaust port is constituted by a portion of the window opening.

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