JP5570388B2 - Building ventilation system - Google Patents

Description

  The present invention relates to a building ventilation system for ventilating an indoor space of a building.

  As a device for controlling the environment of an indoor space in a building, an air conditioner such as an air conditioner is generally used and widely spread. Although such air conditioning equipment is being improved daily for energy saving, it requires a long drive for continuous air conditioning, and there is a limit to the suppression of power consumption.

  Therefore, techniques for adjusting the temperature of indoor spaces without using air conditioning equipment have been proposed. As an example of the proposal, it is known to install a facility for spraying mist on a balcony adjacent to a room (see Patent Document 1).

  In this example, the temperature of the balcony is lowered by utilizing the heat of vaporization of the sprayed mist, and the cold air is taken into the room by being placed on the draft and thereby the temperature of the room is lowered. For this reason, the air conditioning which does not use an air-conditioning equipment can be implement | achieved, and the living environment of summer can be made comfortable, aiming at energy saving.

JP 2009-175445 A

  However, the generation conditions of the wind blowing into the balcony are greatly affected by the size of adjacent buildings, the interval between adjacent buildings, the direction in which the balcony is arranged, the time zone, and the like. For example, in a densely populated residential area in an urban area, the above-mentioned generation conditions are not met, and it is difficult to generate wind and the ventilation is poor. In a building built in such a place, even if the temperature of the balcony is lowered by mist spraying, it is difficult to generate wind for taking in the cold air into the room. .

  Accordingly, a main object of the present invention is to realize ventilation of an indoor space that does not use air conditioning equipment without depending on whether the ventilation is good or bad in the building ventilation system.

  The present invention employs the following means in order to solve the above problems.

  That is, in the first invention, the window portion is applied to a building including a semi-outdoor space and an indoor space adjacent to the semi-outdoor space, and is provided in a partition that divides the semi-outdoor space and the indoor space. In the building ventilation system for ventilating the indoor space through, a shutter device having a shutter curtain that can be shifted to a partially open state in which a predetermined portion is opened with respect to the entire area of the window portion, and the others are closed, and the semi-outdoor A semi-outdoor environment information acquisition unit that acquires water semi-outdoor environment information in the semi-outdoor space and a water retention unit that is provided on the floor of the space and moisture-hydrates and the water contained in the semi-outdoor space evaporates according to environmental conditions. And shutter control means for controlling a partial opening mode of the shutter device based on the semi-outdoor environment information.

  According to the first invention, when the shutter curtain in the fully closed state is partially opened, the semi-outdoor space and the indoor space are communicated with each other through the opened portion. In that case, when the water in the water retention part evaporates, the water vapor rises and diffuses in the semi-outdoor space, and the heat of the indoor space is attracted to the semi-outdoor side along with the diffusion, and the semi-outdoor space through the open part The exhaust to is encouraged. Thereby, ventilation of indoor space is realizable. Here, since ventilation is performed using diffusion of water vapor, ventilation of an indoor space without using an air conditioner such as an air conditioner can be realized without depending on whether the ventilation is good or bad.

  However, the amount of water evaporated from the water retention unit is affected by the environment of the semi-outdoor space (for example, temperature, humidity, wind strength, etc.). For this reason, for example, even if the shutter curtain upper part is partially opened when the amount of water evaporation is small, the diffusion of water vapor does not reach the upper part of the shutter curtain, and the expected ventilation effect cannot be obtained. On the other hand, inadvertently opening the shutter curtain partly causes problems from the viewpoint of crime prevention and privacy protection.

  Therefore, in the second invention, the shutter control means determines the amount of water evaporation from the water retention unit based on the semi-outdoor environment information, and determines the position of the predetermined part that makes the shutter curtain partially open. It was made to change according to the amount of moisture evaporation.

  According to the second aspect of the present invention, the partial opening state is changed according to the amount of water evaporation, so that it is possible to form a partial opening state that is optimal for realizing ventilation. Thereby, realization of ventilation and harmony with crime prevention and privacy protection can be aimed at.

  In the third invention, when the moisture evaporation amount is determined to be greater than the set environment reference value, the predetermined portion is the upper part of the shutter curtain, and it is determined that the moisture evaporation amount is less than the set environment reference value. In this case, the predetermined part is the lower part of the shutter curtain.

  According to the third aspect of the invention, when the amount of water evaporation is larger than the set environmental reference value, the diffusion of water vapor can reach the upper part of the shutter curtain. Therefore, by partially opening the upper part of the shutter curtain, the upper part of the indoor space can be opened. It is possible to promote exhaustion of the staying heat. In addition, when the amount of water evaporation is smaller than the set environmental standard value, it is difficult for water vapor to reach the upper part of the shutter curtain, so by opening the lower part of the shutter curtain, open the lower part of the cold air whose temperature has decreased due to heat of vaporization. We take in indoor space through part. This cool air can ventilate the indoor space. In order to promote this cold air intake effect, it is preferable to adopt a configuration in which an indoor unit is provided with an exhaust unit for exhausting the internal air.

  In the case where the amount of water evaporation is larger than the set environmental reference value, it is preferable that the predetermined portion is the upper and lower portions of the shutter curtain. Thereby, not only the exhaust heat promotion effect through the upper open part can be obtained, but also cool air whose temperature has been lowered by the heat of vaporization can be taken into the indoor space through the lower open part. Thereby, an air circulation is formed in the indoor space and the semi-outdoor space, and it can be performed in combination with the intake of cold air and the exhaust heat, and the air permeability is improved as compared with the case where only the upper part is opened.

  In addition, when opening the upper part of a shutter curtain, it is preferable that it is a shutter apparatus provided with the shutter curtain by which many slats are connected, and the angle adjustment mechanism which adjusts an angle about several upper slats. Thereby, the state where the upper part was opened can be easily formed.

  Further, as a mode of opening the lower part of the shutter curtain, it is preferable that the shutter curtain is raised by one or several slats if the shutter curtain is formed by connecting a large number of slats. If it is this aspect, since a shutter curtain is only raised a little, opening lower part is easily realizable.

  In a fourth aspect of the invention, the water detection means for detecting the water content of the water retention section, the water supply means for supplying water to the water retention section, and the water content information detected by the moisture detection means Water supply control means for controlling water supply by the supply means.

  According to the fourth aspect of the present invention, water sufficient to evaporate can always be included in the water retention unit, so that ventilation of the indoor space can be realized without being affected by outdoor weather.

  According to a fifth aspect of the invention, there is provided indoor temperature detection means for detecting the temperature of the indoor space, and the shutter control means opens the partial portion of the shutter curtain when it is determined that the temperature of the indoor space is higher than a set temperature. The control related to the aspect is executed.

  According to the fifth aspect of the present invention, the temperature of the indoor space is monitored, and when the ventilation is determined to be necessary, the shutter curtain is controlled to be in a partially open state. Even when manual control is difficult, excessive ventilation such as excessive cooling can be suppressed.

The partial longitudinal cross-sectional view of the building which shows a building ventilation system. The front view of a shutter apparatus. It is the side surface schematic diagram of a shutter device, (a) shows when the upper part is opened, (b) shows when the lower part is opened, and (c) shows the upper and lower parts are opened. It is a front schematic diagram of the shutter device, (a) shows when the upper part is opened, (b) shows when the lower part is opened, and (c) shows when the upper and lower parts are opened. The flowchart which shows the flow of control in a building ventilation system. It is the schematic which shows the flow of air, (a) shows the time of upper open, (b) shows the time of opening up and down, (c) shows the time of lower opening.

  An embodiment of a building ventilation system will be described below with reference to the drawings.

  FIG. 1 is a partial longitudinal sectional view of a building provided with a building ventilation system in the present embodiment. First, the structure of the building which is the premise of the system will be described.

  As shown in FIG. 1, the building 10 includes an indoor space 11 provided on an upper floor portion thereof, and a balcony 12 that is adjacent to the indoor space 11 side by side. The balcony 12 corresponds to a semi-outdoor space. The indoor space 11 and the balcony 12 are partitioned by an outer wall portion 13 as a partitioning portion, and a window portion 14 having a relatively large opening is provided on the outer wall portion 13. This window part 14 is a sweep-out type, and a building user (user) can go back and forth between the indoor space 11 and the balcony 12 by using it.

  The building ventilation system enables ventilation of the indoor space 11 without using an air conditioner such as an air conditioner by allowing air to move between the indoor space 11 and the balcony 12 when the room temperature of the indoor space 11 becomes high in summer. Is realized. This building ventilation system is configured to include a shutter device 20 provided on the outdoor side of the window 14, each component in the indoor space 11 and the balcony 12, and a controller K that performs overall control thereof. First, the configuration of the shutter device 20 will be described, and then each component on the indoor space 11 side and the balcony 12 side will be described.

  First, the shutter device 20 includes a shutter box 21 having a horizontally long box shape, a slat opening / closing type shutter curtain 22 and the like. The shutter box 21 is attached above the window portion 14, and the shutter curtain 22 is accommodated while being wound in the shutter box 21. When the shutter curtain 22 is pulled out (lowered) from the shutter box 21, the window portion 14 is closed, and when the shutter curtain 22 is wound up (raised) into the shutter box 21, the window portion 14 is opened.

  The shutter device 20 will be described in more detail with reference to FIG. FIG. 2 is a front view of the shutter device 20 and also shows a part of the electrical configuration.

  As shown in FIG. 2, the slat open / close shutter curtain 22 is constructed by connecting a large number of slats 23 in the vertical direction. Each slat 23 is formed in a horizontally long plate shape, and is arranged so as to be lined up and down. The slats 23 are configured such that the slats 23 adjacent to each other in the vertical direction are engaged with each other, and the shutter curtain 22 is integrally raised and lowered.

  The uppermost part of the shutter curtain 22 is connected to a winding drum 24 installed in the shutter box 21, and the winding and withdrawal of the shutter curtain 22 is performed by rotating the winding drum 24. The winding drum 24 is connected to a drum driving unit 25 that is also housed in the shutter box 21. The drum driving unit 25 includes an electric motor or the like. When the winding drum 24 rotates in either the forward or reverse direction by driving the drum driving unit 25, the shutter curtain 22 is wound or pulled out.

  When the winding or drawing is performed, the winding or drawing operation is guided by the guide rails 26 provided at the left and right ends of the shutter curtain 22. The guide rails 26 are attached to the left and right sides of the window portion 14.

  The guide rail 26 is provided with a slat opening / closing mechanism that opens and closes only a few (for example, three) of the slats 23 drawn from the shutter box 21. The slat opening / closing mechanism has a well-known configuration using a rotating shaft portion provided at both longitudinal ends of the slat 23 and a link mechanism therewith, and is connected to a slat driving portion 27 housed in the shutter box 21. Yes. The slat drive unit 27 is configured to include an electric motor or the like, and the top several sheets of the slats 23 are opened and closed by the drive of the slat drive unit 27 via the slat opening / closing mechanism. When in the open state, the slats 23 are inclined, and due to the inclination, a horizontally long gap is formed between the vertically adjacent slats 23.

  By providing such a slat opening / closing mechanism, the slats 23 can integrally move up and down to raise and lower the shutter curtain 22, and the shutter curtain 22 is partially opened. It becomes possible.

  FIG. 3 is a schematic side view of the shutter device 20, and (a) to (c) show different aspects of the shutter curtain 22. FIG. 4 is a schematic front view, and (a) to (c) correspond to FIGS. 3 (a) to (c), respectively.

  First, the reference is the fully closed state, and the shutter curtain 22 in that state is pulled out until the entire area of the window portion 14 is closed, and all the slats 23 are closed (see FIG. 1). There are three modes in which the shutter curtain 22 is partially opened.

  One is a mode in which several upper slats 23a of each slat 23 are shifted from the reference state described above to the open state as shown in FIG. As a result, as shown in FIG. 4A, an open portion A1 is formed at the upper end portion of the shutter curtain 22 through the gap between the adjacent slats 23, and the air permeability (window portion) to the indoor through the open portion A1. 14 is assumed to be open) and daylighting is ensured. In this aspect, the formation part of opening part A1 is equivalent to the predetermined site | part opened partially.

  Another one is a mode in which the shutter curtain 22 is slightly raised (for example, about one slat) from the above-described reference state, as shown in FIG. Thereby, as shown in FIG.4 (b), the opening part A2 is formed in the lower end part of the shutter curtain 22, and the air permeability to indoors is ensured through the opening part A2. In this aspect, the formation part of opening part A2 is equivalent to the predetermined site | part opened partially.

  Further, as shown in FIG. 3 (c), the shutter curtain 22 is slightly raised (see FIG. 3 (b)) as shown in FIG. This is a mode in which several slats 23a are shifted to the open state. Thereby, as shown in FIG.4 (c), opening part A1, A2 is formed in the up-and-down both ends of the shutter curtain 22, and the air permeability and lighting property to an indoor are ensured through this opening part A1, A2. In this aspect, the formation part of opening part A1, A2 is equivalent to the predetermined site | part opened partially.

  Returning to FIG. 2, the drum driving unit 25 serving as a driving source for moving the shutter curtain 22 up and down, and the slat driving unit 27 serving as a driving source for opening and closing the slat 23 are connected to a shutter control unit 28. Therefore, the driving of the drum driving unit 25 and the slat driving unit 27, that is, the raising / lowering operation of the shutter curtain 22 and the opening / closing operation of the slat 23 are controlled by a command of the shutter control unit 28.

  The shutter control unit 28 is actually provided in the shutter box 21. The shutter control unit 28 is connected to an operating device 29 (see FIG. 1) provided on the wall surface of the indoor space 11. The operating device 29 has operating elements (buttons, switches, etc.) and accepts manual operations related to raising and lowering the shutter curtain 22 and opening and closing of the slats 23. Then, the shutter control unit 28 outputs a command signal to the drum driving unit 25 and the slat driving unit 27 in order to execute control according to the received operation content.

  Next, returning to FIG. 1, the components on the indoor space 11 side and the balcony 12 side will be described.

  First, the indoor space 11 is provided with a room temperature sensor 31 that detects the room temperature of the indoor space 11. This room temperature sensor 31 corresponds to an indoor temperature detection means.

  On the other hand, the balcony 12 is provided with a water retaining tile 32 and a waist wall portion 33. The water retaining tile 32 is a tile material configured to be porous, and has a water retaining function of retaining water in the pores therein. Such a water retaining tile 32 is spread over the entire area of the floor of the balcony 12. The moisture content (moisture content) of the water retaining tile 32 is detected by a moisture sensor 34 as moisture detection means.

  The waist wall 33 is erected on the edge of the balcony 12. The waist wall 33 is provided with a watering device 35 and a balcony environment sensor 36. The water sprinkling device 35 has a water passage 37 extending in the lateral direction along the waist wall portion 33 and a nozzle 38 communicating with the water passage 37. The water passage 37 is provided with an on-off valve (not shown) controlled by an external signal, and the opening and closing of the water passage 37 switches between the water discharge from the nozzle 38 and the stop thereof. A plurality of nozzles 38 are provided in accordance with the size of the balcony 12, and water is led out from each nozzle 38 to be sprayed onto the water retaining tile 32 on the floor. A movable nozzle 38 may be used to allow watering over a wide area. This watering device 35 corresponds to water supply means. Further, the balcony environment sensor 36 acquires environmental information such as the temperature, humidity, and wind strength on the balcony 12. The balcony environment sensor 36 corresponds to a semi-outdoor environment information acquisition unit.

  The shutter control unit 28, the room temperature sensor 31, the moisture sensor 34, the watering device 35, and the balcony environment sensor 36 of the shutter device 20 are connected to the controller K, respectively. The controller K includes a microcomputer that includes a CPU, a memory, and the like. For example, the controller K is provided integrally with the operation device 29 of the shutter device 20.

  The controller K acquires the room temperature information of the indoor space 11 detected by the room temperature sensor 31, the water content information of the water retaining tile 32 detected by the moisture sensor 34, and the environment information of the balcony 12 detected by the balcony environment sensor 36. Then, the controller K issues a command to the shutter control unit 28 and the watering device 35 based on such information, and executes drive control of the shutter device 20 and opening / closing control of the nozzle 38 in the watering device 35.

  The shutter control unit 28 and the controller K correspond to shutter control means. The controller K also corresponds to water supply control means.

  The above is the configuration of the building ventilation system. Next, the flow of control in the building ventilation system will be described based on the flowchart of FIG. This control process is executed by the controller K at a predetermined time period. The condition for executing the control process is that the shutter curtain 22 is in the fully closed state. For this reason, if the controller K is in the open state, the controller K shifts the shutter curtain 22 to the fully closed state before executing the process.

  In FIG. 5, first, in step S101, various information from the sensor is read. Specifically, room temperature information of the indoor space 11 detected by the room temperature sensor 31, moisture content information of the water retaining tile 32 detected by the moisture sensor 34, and environment information of the balcony 12 detected by the balcony environment sensor 36 are read.

  Subsequently, in step S102, it is determined whether or not the room temperature at that time is equal to or higher than a predetermined reference temperature (for example, 30 ° C.). The reference temperature is set in advance as a room temperature at which the openings A1 and A2 are formed in the shutter curtain 22 and ventilation is required. The reference temperature is not limited to the above numerical value, and can be appropriately changed. The reference temperature may be changed as appropriate according to the user's request. Then, when the room temperature is lower than the reference temperature (when room temperature <30 ° C.), the process is terminated. In this case, if the shutter curtain 22 is in a partially opened state, the process is terminated after executing a closing process for closing the opening portions A1 and A2. On the other hand, if the room temperature is equal to or higher than the reference temperature (room temperature ≧ 30 ° C.), the determination is affirmed and the process proceeds to step S103.

  In this step S103, it is determined whether or not the water content at that time in the water retaining tile 32 is equal to or less than a predetermined water content reference value (for example, 80%). This water content reference value is set in advance as a water content that requires water replenishment. The water content reference value is not limited to the above numerical value, and can be appropriately changed. In addition, you may enable it to change this moisture content reference value suitably according to a user's request | requirement. If the water content exceeds the water content reference value (water content> 80%), the process proceeds to step S105. On the other hand, if the moisture content is equal to or less than the moisture content reference value (moisture content ≦ 80%), the process proceeds to step S104, and water is led out from the nozzle 38 of the water sprinkler 35 to execute watering treatment to the floor. Thereby, water is supplied to the water retaining tile 32 and the water content is increased.

  In step S105, an evaporation amount determination process is executed. Specifically, based on the environmental information of the balcony 12 detected by the balcony environment sensor 36, it is determined whether the amount of evaporation of water contained in the water retaining tile 32 is “large” or “small”. Here, the amount of evaporation is not quantified, but the amount of evaporation is estimated from the environmental information of the balcony 12. Since the evaporation amount of water from the water retaining tile 32 is greatly influenced by the environment of the balcony 12, such an estimation is possible. It can also be determined by quantifying the evaporation amount.

  For example, when the temperature of the balcony 12 is relatively high and the humidity is low (for example, the temperature is 28 ° C. or higher and the humidity is 40% or less), it can be estimated that the evaporation amount is large. In addition, even when the temperature and humidity are relatively high (for example, when the temperature is 28 ° C. or higher and the humidity is 60% or higher), the amount of evaporation increases even when a wind that blows through the balcony 12 is generated. I can guess. Therefore, when an environmental reference value that provides such a large evaporation amount is set in advance and it is determined that the environment satisfies the set environmental reference value, it is determined that the evaporation amount is in the “large” mode. On the other hand, when the set environmental reference value is not reached, the evaporation amount “small” mode is determined.

  This environmental reference value can be set as appropriate. When the temperature is relatively high and the humidity is low, the above numerical values given as examples when the temperature and humidity are relatively high are not limited to this.

  Thereafter, in step S106, the process is branched according to the mode determination result in step S105. When the evaporation amount “large” mode determination is made, the process proceeds to step S107, and when the evaporation amount “small” mode determination is made, the process proceeds to step S112. Hereinafter, the processing in each mode will be described with reference to FIG. 6 as appropriate. FIG. 6 is a schematic diagram showing the air flow when the shutter curtain 22 is partially opened. When the upper part is opened, (b) shows when the upper and lower parts are opened, and (c) shows when the lower part is opened.

  First, the processing in the evaporation amount “large” mode will be described. In step S107, it is determined whether or not the effect determination flag F is zero. The effect determination flag F indicates the effectiveness of the curtain part opening process executed in step S108 subsequent to step S107. When it is zero, it is the first determination or the validity is uncertain, and when it is 1, it is confirmed that there is no validity.

  If the effect determination flag F is zero (F = 0), the determination is affirmed and the process proceeds to step S108, where an upper opening process for partially opening the upper portion of the shutter curtain 22 is executed. As a result, an opening A1 is formed on the upper portion of the shutter curtain 22 (see FIGS. 3A and 4A). In this case, as shown in FIG. 6A, the water vapor generated by evaporating the moisture in the water retaining tile 32 rises up to the balcony 12 to reach the open portion A1 and diffuses. Along with the diffusion, the heat H staying in the upper portion of the indoor space 11 is attracted to the balcony 12 through the open portion A1, thereby urging the outside to the outside.

  Then, it progresses to step S109 and it is determined whether predetermined time (for example, about several tens of minutes) has passed since the upper opening process of the shutter curtain 22 was performed. If it is still within the predetermined time, the determination is denied and the process is terminated. If the predetermined time has elapsed, the determination is affirmed and the process proceeds to step S110. That is, the determination in step S109 is affirmative when the room temperature does not fall below the reference temperature even if the upper opening process is continued until a predetermined time elapses. This is because the upper opening process lowers the room temperature. Indicates that there is no effectiveness. Therefore, in step S110, the effect determination flag F is set to the value 1 to indicate that the upper opening process is not effective.

  When the effect determination flag F is set to 1 (F = 1) as described above, the determination in step S107 is denied and the process proceeds to step S111, where the upper and lower opening processing for partially opening both the upper and lower portions of the shutter curtain 22 is performed. Execute. Thereby, opening part A1, A2 is formed in the upper and lower sides of the shutter curtain 22 (refer FIG.3 (c) and FIG.4 (c)). In this case, as shown in FIG. 6B, the temperature on the floor side of the balcony 12 is lowered by the heat of vaporization when the water of the water retaining tile 32 evaporates, and the generated cold air C is opened downward. It can be taken into the indoor space 11 through the part A2. Then, the heat H rises in the indoor space 11, and the heat H accumulated in the upper part is urged to be exhausted to the outside as the water vapor diffuses. Thereby, an air circulation is formed between the indoor space 11 and the balcony 12, and the cold air C can be taken indoors and the heat H can be exhausted outdoors. Therefore, the ventilation effect can be enhanced as compared with the case of only the upper opening described above.

  Next, the process in the evaporation amount “small” mode will be described. In step S112, a lower opening process for partially opening the lower part of the shutter curtain 22 is executed. As a result, an opening A2 is formed in the lower part of the shutter curtain 22 (see FIGS. 3B and 4B). In this case, as shown in FIG. 6C, the cold air C generated on the floor side due to the water evaporation of the water retaining tile 32 can be taken into the indoor space 11 through the opening A2.

  In this case, it is preferable that the indoor space 11 has a ventilation port as an exhaust part. As a ventilation opening, when the indoor space 11 exists on the top floor as in this embodiment, a top light is considered as an example. Further, undercuts, vents, and the like provided in door bodies that divide the indoor space 11 from other indoor spaces can be considered as other examples of ventilation openings. By having such a vent, the air in the indoor space 11 can be exhausted through the vent and the intake of the cold air C can be promoted.

  With the above configuration, according to the building ventilation system of the present embodiment, the following advantageous effects can be obtained.

  (1) A water retaining tile 32 is installed on the floor portion of the balcony 12, and water contained in the water retaining tile 32 is evaporated. At the same time, by partially opening the shutter curtain 22 of the shutter device 20, air permeability between the indoor space 11 and the balcony 12 is secured through the open portions A1 and A2. As the water vapor rises and diffuses, the heat H accumulated in the upper part of the indoor space is attracted to the balcony 12 side, so that the heat H in the indoor space 11 can be exhausted to the balcony 12 without using air conditioning equipment such as an air conditioner. . Since the air blown from the balcony 12 to the indoor space 11 is not required, the indoor space 11 can be ventilated without depending on whether the ventilation is good or bad.

  (2) Since the evaporation amount of water is affected by the environment of the balcony 12, the size of the evaporation amount is estimated according to the environment of the balcony 12, and the mode of partial opening is changed according to the size. By adopting an open mode in which the ventilation effect can be expected, the shutter curtain 22 is partially opened inadvertently to prevent the problem of crime prevention and privacy, and the harmony between the realization of the ventilation effect and crime prevention and privacy protection is achieved. Can be planned.

  (3) When it is determined that the amount of water evaporation is large, the upper portion of the shutter curtain 22 is opened. When the amount of evaporation is large, the diffusion of water vapor can reach the upper part of the shutter curtain 22, so that an effect of promoting exhaust heat can be expected by opening the upper part. In this case, among the slats 23 constituting the shutter curtain 22, the upper slats 23 are opened to form the open portion A1, and the upper open state can be easily formed.

  (4) When it is determined that the amount of water evaporation is large, if the ventilation effect is insufficient only by opening the upper part, the lower part of the shutter curtain 22 is also opened. In this open mode, not only the exhaust heat promotion effect through the upper open part A1, but also cold air C whose temperature has been lowered by the heat of vaporization can be taken into the indoor space 11 through the lower open part A2. Thereby, it is possible to form an air circulation between the indoor space 11 and the balcony 12, and the intake of the cold air C and the exhaust of the heat H are performed together, and the air permeability can be improved.

  (5) When it is determined that the amount of water evaporation is small, the lower portion of the shutter curtain 22 is opened. If the evaporation amount is small, it is difficult for water vapor to reach the upper part of the shutter curtain 22, and the effect of promoting exhaust heat by opening the upper part cannot be expected. Therefore, the upper part is not opened. Instead, by opening the lower part, the cold air C whose temperature has been lowered by the heat of vaporization can be taken into the indoor space 11. In this case, the open portion A2 is formed by raising the shutter curtain 22 by one or several slats, and the lower open state can be easily formed.

  (6) Comparing the reference temperature set in advance with the room temperature, if the room temperature is equal to or higher than the reference temperature, the partial opening process of the shutter curtain 22 is executed, and if the room temperature falls below the reference temperature, the opening process is not executed. When the cold air C is taken in by the wind blown indoors as in the prior art, it is necessary for the user to open and close the window portion 14 to adjust the room temperature. There was a problem. Such a problem can be solved.

  Note that the present invention is not limited to the embodiment described above, and can be implemented, for example, in the form shown as another example below.

  In the above embodiment, the balcony 12 is a semi-outdoor space of the building 10, but the semi-outdoor space may be a veranda or a terrace.

  In the above embodiment, the water retaining tile 32 is the water retaining portion, but the water retaining portion may be a basin or the like provided on the floor of the balcony 12. In the case of a basin, it is preferable that a floor member having air permeability such as grating is provided above the basin so that the function as the balcony 12 is not impaired.

  In the above embodiment, water vapor generated by evaporation of water contained in the water retaining tile 32 is naturally diffused, but a fan device that forms an upward air flow from the floor of the balcony 12 is installed. May be. By driving the fan device, an ascending air current is forcibly formed, and therefore the exhaust air can be further promoted to exhaust the heat H in the indoor space 11. In addition, when the opening portions A1 and A2 are formed above and below, if the fan device is arranged so as not to diffuse to the cold air C, the intake of the cold air C can be further promoted as the heat H is exhausted. .

  In the above embodiment, the water sprinkler 35 provided on the balcony 12 is used as the water supply means. However, as the water supply means, a device that causes the water to flow on the water retaining tile 32 or a mist generator that sprays mist on the balcony 12. Etc. For example, according to the mist generating apparatus as an example of the latter, in addition to the heat of vaporization caused by the evaporation of water contained in the water retaining tile 32, the heat of vaporization of the mist can be used, so that the temperature of the balcony 12 is further reduced. There are benefits. Further, the water supply means such as the watering device 35 may be omitted, and the user himself / herself may spray the water retaining tile 32.

  -In the said embodiment, although the water supply source to the sprinkler 35 is not mentioned in particular, tap water may be used and the water stored in the rainwater tank may be utilized. If rainwater is used, an increase in water usage due to the installation of the watering device 35 can be suppressed.

  In the above embodiment, as the partial opening mode of the shutter curtain 22, the mode in which the opening portions A <b> 1 and A <b> 2 are formed in both the upper portion, the lower portion, and the upper and lower portions has been described. You may do it. Moreover, it is good also as an aspect which changed the opening amount (namely, up-and-down width of opening part A1, A2) of partial opening according to the moisture evaporation amount. In that case, you may make it respond | correspond by increasing / decreasing the opening / closing number of the slats 23. FIG. For example, in the shutter curtain 22 shown in FIG. 3, three slats 23 are opened and closed, but this may be set to two or less or four or more.

  In the above embodiment, the shutter curtain 22 is slightly lifted to form the lower open state, but a slat opening / closing mechanism for opening and closing the lower slats 23 is provided, and the lower slats are similar to the upper opening. 23 may be opened to form an open state.

  In the above embodiment, the indoor space 11 and the balcony 12 are provided on the top floor part, but these may be provided on the middle floor part of the building 10. Moreover, although the roof part 15 has projected over the balcony 12, it may not be such an overhanging roof, and may be a flat roof instead of an inclined roof.

  DESCRIPTION OF SYMBOLS 11 ... Indoor space, 12 ... Balcony (semi-outdoor space), 13 ... Outer wall part (partition part), 20 ... Shutter apparatus, 22 ... Shutter curtain, 28 ... Shutter control part (shutter control means), 31 ... Room temperature sensor (indoor Temperature detection means), 32 ... Water retention tile (water retention part), 34 ... Moisture sensor (water content detection means), 35 ... Watering device (water supply means), 36 ... Balcony environment sensor (semi-outdoor environment information acquisition means), K ... Controller (shutter control means, water supply control means).

Claims (4)

A building that is applied to a building that includes a semi-outdoor space and an indoor space adjacent to the semi-outdoor space, and that vents the indoor space through a window provided in a partition that divides the semi-outdoor space and the indoor space. In the ventilation system,
A shutter device having a shutter curtain capable of shifting to a partially open state in which a predetermined portion is opened with respect to the entire area of the window portion and the others are closed;
A water retaining part that is provided on the floor of the semi-outdoor space, hydrates moisture, and evaporates the moisture hydrated in the semi-outdoor space according to environmental conditions;
Semi-outdoor environment information acquisition means for acquiring semi-outdoor environment information in the semi-outdoor space;
Shutter control means for controlling a partial opening mode of the shutter device based on the semi-outdoor environment information;
With
The shutter control means determines the amount of water evaporation from the water retention unit based on the semi-outdoor environment information, and changes the position of the predetermined part that places the shutter curtain in a partially open state according to the amount of water evaporation. Building ventilation system characterized by that. The predetermined portion when the moisture evaporation amount is determined to be larger than the set environment reference value is the upper portion of the shutter curtain, and the predetermined portion when the moisture evaporation amount is determined to be smaller than the set environment reference value. site, building ventilation system according to claim 1, characterized in that the lower portion of the shutter curtain. Moisture detection means for detecting the water content of the water retention part;
Water supply means for supplying water to the water retention unit;
Water supply control means for controlling water supply by the water supply means based on the water content information detected by the moisture detection means;
The building ventilation system according to claim 1 or 2 , further comprising: An indoor temperature detecting means for detecting the temperature of the indoor space;
It said shutter control means, wherein when the temperature of the indoor space is determined to be higher than the set temperature, any one of claims 1 to 3, characterized in that to perform a control related to partially open mode of the shutter curtain Listed in the building ventilation system.

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