JP2020070965A - Heat exchange type ventilating device - Google Patents

Abstract

To provide a heat exchange type ventilating device that can restrain dew condensation on an indoor side surface.SOLUTION: A heat exchange type ventilating device 1 comprises a window frame 3, a daylighting part 4 comprising an indoor side daylighting part 14 and an outdoor side daylighting part 15, and a heat exchange element 5 being arranged between the indoor side daylighting part 14 and the outdoor side daylighting part 15 so as to overlap with the daylighting part 4. The window frame 3 comprises an exhaust inflow port 8 for taking indoor air, an exhaust outflow port 9 for discharging the indoor air, an air supply inflow port 10 for taking outdoor air, and an air supply outflow port 11 for discharging the outdoor air. The heat exchange element 5 comprises a heat transfer plate 16, an exhaust passage 17 provided between the indoor side daylighting part 14 and the heat transfer plate 16, and an air supply passage 18 provided between the heat transfer plate 16 and the outdoor side daylighting part 15. The heat transfer plate 16 exchanges heat between the indoor air 6 flowing through the exhaust passage 17 and the outdoor air 7 flowing through the air supply passage 18. The indoor side daylighting part 14 comprises a pair of first daylighting plates 14b opposed to each other via a first hollow layer 14a.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a heat exchange type ventilation device, and more particularly to a heat exchange type ventilation device for windows installed in a window to ventilate a room.

  In recent years, there has been an increasing demand for reducing the air-conditioning load of homes due to global warming, and there is a demand for a ventilation device that has both excellent energy-saving performance and workability. As such a ventilation device, for example, a ventilation device for windows that is installed in a window to ventilate a room is known (for example, refer to Patent Document 1).

  Hereinafter, the conventional ventilation device 100 will be described with reference to FIGS. 6 and 7. FIG. 6 is a schematic perspective view showing the configuration of the conventional ventilation device 100. FIG. 7 is a schematic sectional view of a conventional ventilation device 100. Note that FIG. 6 shows the indoor side window glass 101 in an open state.

  As shown in FIGS. 6 and 7, the conventional ventilation device 100 has a configuration in which an indoor side window glass 101 and an outdoor side window glass 102 are separated from each other, and a separation passage 103 is provided therebetween. The separation passage 103 communicates with the first casing 104 at its lower portion and communicates with the second casing 105 at its upper portion. In the conventional ventilation device 100, the outside air (outdoor air) introduced from the outside air circulation port 106 provided in the first casing 104 at the time of inhaling the outside air, the inside air circulation port 107 provided in the second casing 105 through the separation passage 103. It is configured to supply air more indoors. In such a conventional ventilation device 100, in the case of winter, cold outside air is heated by the radiant heat of sunlight (sunlight) when passing through the isolated passage 103, so that the decrease in the indoor temperature that occurs when the outside air is introduced into the room. Can be suppressed. As a result, in the conventional ventilation device 100, it is possible to reduce the load of indoor heating for compensating for the decrease in indoor temperature due to the introduction of outside air.

JP, 2005-003348, A

  However, in such a conventional ventilation device 100, since the outside air passes between the indoor side window glass 101 and the outdoor side window glass 102, the temperature of the indoor side window glass 101 is low when the temperature of the outside air is low such as in winter. Is decreased, and the indoor air in contact with the indoor window glass 101 on the indoor side is cooled. Therefore, there is a problem that dew condensation occurs on the indoor surface of the indoor window glass 101.

  Also, as a ventilation device for windows, a heat exchange type ventilation device that can reduce the heat lost by ventilation by exchanging heat between the exhaust air flow (indoor air) and the air supply flow (outdoor air) Can be used. However, even when such a heat exchange type ventilation device is used, there is a concern that, as in the conventional ventilation device 100, the introduced outside air (outdoor air) causes dew condensation on the indoor surface of the heat exchange type ventilation device. There is.

  Then, this invention solves the said conventional subject, and an object of this invention is to provide the heat exchange type ventilation device which can suppress the dew condensation on the indoor side surface.

  In order to achieve this object, a heat exchange type ventilator according to the present invention is provided with a window frame, an indoor side lighting section provided on the inner side of the window frame and an outdoor side located on the outdoor side. The lighting device includes a lighting unit having a lighting unit, and a heat exchange element disposed between the indoor lighting unit and the outdoor lighting unit so as to overlap the lighting unit. The window frame is provided on the indoor side, an exhaust inlet for taking in the indoor air, an exhaust outlet for blowing the indoor air at the outdoor side, an air supply inlet for taking the outdoor air at the outdoor side, and the room. An air supply outlet provided inside, which blows out outdoor air, an exhaust air blower which blows indoor air from the exhaust air inlet to the exhaust air outlet, and an air blower which blows outdoor air from the air supply inlet to the air supply outlet. , With. The heat exchange element is provided with a light-transmissive heat transfer plate provided between the indoor side lighting part and the outdoor side lighting part, and provided between the indoor side lighting part and the heat transfer plate, and with an exhaust inlet. An exhaust air passage that communicates with the exhaust air outlet, and an air supply air passage that is provided between the heat transfer plate and the outdoor daylighting portion and that connects the air supply inlet and the air supply outlet are provided. The heat transfer plate performs heat exchange between the indoor air flowing through the exhaust air passage and the outdoor air flowing through the supply air passage. The indoor side lighting part is composed of a pair of first lighting plates facing each other with the first hollow layer in between.

  ADVANTAGE OF THE INVENTION According to the heat exchange type ventilation device which concerns on this invention, the heat exchange type ventilation device which can suppress the dew condensation on the indoor side surface can be provided.

FIG. 1 is a schematic front view showing an installation example of a heat exchange type ventilation device according to a first embodiment of the present invention. FIG. 2 is a schematic perspective view of the heat exchange type ventilation device as viewed from the indoor side. FIG. 3 is a schematic perspective view of the same heat exchange type ventilation device as seen from the outside of the room. FIG. 4 is a schematic cross-sectional view of the heat exchange type ventilation device. FIG. 5 is a schematic cross-sectional view of the heat exchange type ventilation device according to the second embodiment of the present invention. FIG. 6 is a schematic perspective view showing the configuration of a conventional ventilation device. FIG. 7 is a schematic cross-sectional view of a conventional ventilation device.

  The heat exchange type ventilation device according to the present invention includes a window frame, a daylighting section which is provided inside the window frame and has an indoor daylighting section located on the indoor side and an outdoor daylighting section located on the outdoor side, and a room. A heat exchange element is provided between the inner daylighting part and the outdoor daylighting part so as to overlap with the daylighting part. The window frame is provided on the indoor side, an exhaust inlet for taking in the indoor air, an exhaust outlet for blowing the indoor air at the outdoor side, an air supply inlet for taking the outdoor air at the outdoor side, and the room. An air supply outlet provided inside, which blows out outdoor air, an exhaust air blower which blows indoor air from the exhaust air inlet to the exhaust air outlet, and an air blower which blows outdoor air from the air supply inlet to the air supply outlet. , With. The heat exchange element is provided with a light-transmissive heat transfer plate provided between the indoor side lighting part and the outdoor side lighting part, and provided between the indoor side lighting part and the heat transfer plate, and with an exhaust inlet. An exhaust air passage that communicates with the exhaust air outlet, and an air supply air passage that is provided between the heat transfer plate and the outdoor daylighting portion and that connects the air supply inlet and the air supply outlet are provided. The heat transfer plate exchanges heat between the indoor air flowing through the exhaust air passage and the outdoor air flowing through the air supply air passage. The indoor side lighting part is composed of a pair of first lighting plates facing each other with the first hollow layer in between.

  According to such a configuration, the indoor side lighting unit configured by the pair of first lighting plates facing each other with the first hollow layer interposed therebetween causes the indoor air of the indoor side lighting unit and the room in which the exhaust air passage is circulated. Heat transfer with air (indoor air whose temperature has decreased due to heat exchange with outdoor air) is suppressed. Therefore, when the temperature of the outdoor air is low such as in winter, it is possible to suppress the dew condensation (condensation on the indoor surface of the indoor daylighting section) caused by the temperature of the indoor air of the indoor side daylighting section decreasing. You can That is, it is possible to provide a heat exchange type ventilation device capable of suppressing dew condensation on the indoor surface.

  In addition, the outdoor side lighting portion may be configured by a pair of second lighting plates that face each other with the second hollow layer in between.

  According to such a configuration, the heat transfer from the outdoor to the heat exchange element (the outdoor air flowing through the air supply air passage) is performed by the outdoor light-collecting section configured by the pair of second light-collecting plates facing each other with the second hollow layer interposed therebetween. Can be suppressed. That is, it is possible to suppress the temperature decrease of the outdoor air flowing through the supply air passage (the outdoor air whose temperature has risen by exchanging heat with the indoor air), and increase the temperature of the indoor air flowing through the exhaust air passage. As a result, it is possible to suppress the temperature decrease of the indoor air on the indoor side of the indoor daylighting section, and further suppress the dew condensation on the indoor side surface of the indoor side daylighting section.

  In addition, the indoor air is taken in from the exhaust air inlet provided in the upper side portion of the window frame, flows through the exhaust air passage, and is blown out from the exhaust air outlet provided in the lower side portion of the window frame, and the outdoor air is It is taken in from the air supply inlet provided on the lower side of the window frame, flows through the air supply air passage, is blown out from the air supply outlet provided on the upper side of the window frame, and the air flow direction of the exhaust air passage and the air supply air flow. You may comprise so that it may oppose the air flow direction of a path.

  With such a configuration, heat exchange can be performed with a uniform surface temperature distribution in the direction perpendicular to the air flow. That is, by reducing the local deviation of the surface temperature distribution of the heat exchange element (the indoor air flowing through the exhaust air passage), the local decrease in the temperature of the indoor air on the indoor side of the indoor daylighting unit is suppressed. It is possible to further suppress the dew condensation on the indoor surface of the indoor lighting section.

  The air supply outlet may be provided on the upper side of the window frame, and the outdoor air blown from the air supply outlet may be configured to flow to the lower side of the window frame along the indoor surface of the indoor daylighting section. Good.

  According to such a configuration, the outdoor air blown out from the air supply outlet flows between the indoor air on the indoor side of the indoor daylighting section and the indoor side surface of the indoor side daylighting section, and the indoor air is discharged from the indoor daylighting section. Reaching the interior surface is reduced. As a result, dew condensation on the indoor surface of the indoor lighting section can be further suppressed.

  Further, on the indoor side of the indoor daylighting section, there is further provided a partition member having a predetermined distance from the indoor side daylighting section to cover the indoor side daylighting section, and the air supply outlet is provided between the indoor side daylighting section and the partitioning member. It may be configured to be arranged at.

  According to such a configuration, the circulation of the indoor air on the indoor side of the indoor daylighting section is suppressed, and the indoor air reaching the indoor side surface of the indoor daylighting section can be more effectively reduced. As a result, dew condensation on the indoor surface of the indoor lighting section can be further suppressed.

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

(Embodiment 1)
First, the heat exchange type ventilation device 1 according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a schematic front view showing an installation example of a heat exchange type ventilation device 1 according to Embodiment 1 of the present invention. FIG. 2 is a schematic perspective view of the heat exchange type ventilation device 1 as viewed from the indoor side. FIG. 3 is a schematic perspective view of the heat exchange type ventilation device 1 as viewed from the outside of the room. FIG. 4 is a schematic sectional view of the heat exchange type ventilation device 1. It should be noted that FIG. 1 is a state viewed from the inside of the house.

  As shown in FIG. 1, the heat exchange type ventilation device 1 is installed as a window on a wall surface 2 of a house. The heat exchange type ventilation device 1 includes a window frame 3 having a rectangular outer diameter, a daylighting section 4 provided inside the window frame 3, and a light-transmissive heat provided so as to overlap with the daylighting section 4. And the exchange element 5. The heat exchange type ventilation device 1 operates to perform ventilation while exchanging heat between the indoor air of the house (hereinafter, indoor air 6) and the outdoor air (hereinafter, outdoor air 7).

  As shown in FIG. 1, the window frame 3 has a rectangular outer diameter, and when viewed from the indoor side, an upper side portion 3a on the upper side, a lower side portion 3b on the lower side that is paired with the upper side portion 3a, and the left side. And a right side portion 3d on the right side that is paired with the left side portion 3c. The window frame 3 is connected to the upper end of the left side part 3c and the upper end of the right side part 3d at the left and right ends of the upper side part 3a, and is connected to the lower end of the left side part 3c and the lower end of the right side part 3d at the left and right ends of the lower side part 3b. There is. Here, inside the window frame 3, a daylighting section 4 and a heat exchange element 5 for introducing outside light into the room are provided.

  The window frame 3 is generally made of metal or resin. Lightweight aluminum or the like is preferably used as the metal, and vinyl chloride or polycarbonate having high rigidity is used as the resin. In order to prevent heat from entering from the outside, it is preferable to use a resin having lower thermal conductivity than metal.

  The window frame 3 is composed of a hollow member. As shown in FIG. 2, an exhaust air inlet 8 for taking in the indoor air 6 and an air supply outlet 11 for blowing out the outdoor air 7 are formed on the upper side portion 3a of the window frame 3 on the indoor side. .. On the other hand, as shown in FIG. 3, an exhaust air outlet 9 for blowing out the indoor air 6 and a supply air inlet 10 for taking in the outdoor air 7 are formed on the lower side portion 3b of the window frame 3 on the outdoor side. ing. Although not shown, an exhaust filter is attached to the exhaust air inlet 8 (or the exhaust air passage 17 near the exhaust air inlet 8), and the air supply air inlet 10 (or the air supply air passage near the air supply inlet 10) is provided. An air supply filter is attached to 18).

  In the present embodiment, in the air supply air outlet 11 provided on the indoor side upper side portion 3a of the window frame 3, the outdoor air 7 blown out from the air supply air outlet 11 is supplied to the daylighting unit 4 (the indoor lighting unit 14 described later). The blowing direction is adjusted so as to flow to the lower side 3b side of the window frame 3 along the indoor surface.

  Further, inside the upper side portion 3a of the window frame 3, as shown in FIG. 4, an exhaust blower 12 for blowing the indoor air 6 from the exhaust inlet 8 to the exhaust outlet 9 is installed. On the other hand, inside the lower side part 3b of the window frame 3, an air supply blower 13 for blowing the outdoor air 7 from the air supply inlet 10 to the air supply outlet 11 is installed. Here, examples of the blower used for the exhaust blower 12 and the air supply blower 13 include a cross flow fan or a small blower fan.

  As shown in FIGS. 1 to 3, the lighting part 4 (and the heat exchange element 5) is fixed and arranged on the window frame 3 of the upper side part 3a, the lower side part 3b, the left side part 3c, and the right side part 3d. .. The daylighting section 4 is made of a material that transmits light, and is generally made of a material such as a glass material or a reinforced plastic. Although the details will be described later, the heat exchange element 5 is also made of a light-transmissive material.

  As shown in FIG. 4, the lighting unit 4 is configured so as to overlap the heat exchange element 5. Specifically, the daylighting section 4 has an indoor side daylighting section 14 located on the indoor side of the heat exchange element 5, and an outdoor side daylighting section 15 located on the outdoor side of the heat exchange element 5. .. The lighting unit 4 is configured to overlap the heat exchange element 5 between the indoor lighting unit 14 and the outdoor lighting unit 15. That is, the configuration in which the lighting part 4 overlaps with the heat exchange element 5 means that the indoor side lighting part 14, the heat exchange element 5, and the outdoor side lighting part 15 are stacked in this order from the indoor side to the outdoor side. The state is shown.

  The indoor daylighting section 14 is composed of a pair of first daylighting plates 14b facing each other with the first hollow layer 14a interposed therebetween. Here, the first hollow layer 14a is formed by sandwiching the first spacer member 14c between the pair of first daylighting plates 14b. Further, the first hollow layer 14a is filled with dry air or a low heat conductive gas such as argon, and the first hollow layer 14a functions as a heat insulating layer.

  On the other hand, the outdoor daylighting section 15 is composed of a pair of second daylighting plates 15b facing each other with the second hollow layer 15a therebetween. Here, the second hollow layer 15a is formed by sandwiching the second spacer member 15c between the pair of second daylighting plates 15b. The second hollow layer 15a is filled with dry air or a low heat conductive gas such as argon, and the second hollow layer 15a functions as a heat insulating layer. In addition, in this Embodiment, the indoor side lighting part 14 and the outdoor side lighting part 15 are made of the same material and have the same structure.

  As shown in FIG. 4, the heat exchange element 5 is arranged between the indoor side lighting section 14 and the outdoor side lighting section 15 so as to overlap the lighting section 4. Specifically, the heat exchange element 5 is configured to include a light-transmitting heat transfer plate 16, an exhaust air passage 17, and an air supply air passage 18. The heat exchange area (heat exchangeable area) of the heat exchange element 5 is set to be approximately the same as or larger than the lighting area of the lighting unit 4, as shown in FIGS.

  The heat transfer plate 16 is provided between the indoor side lighting section 14 and the outdoor side lighting section 15, and between the indoor air 6 flowing through the exhaust air passage 17 and the outdoor air 7 flowing through the air supply air passage 18. Heat exchange. As the material of the heat transfer plate 16, a material having light transmittance and transmitting only heat for heat exchange, for example, resin such as polypropylene or polycarbonate, or glass material installed in a conventional window is used. Alternatively, as the material of the heat transfer plate 16, a material having light transparency and capable of transmitting both heat and humidity, for example, a resin such as polyurethane may be used.

  The exhaust air passage 17 is an air passage that is provided between the indoor-side daylighting section 14 and the heat transfer plate 16 and connects the exhaust air inlet 8 and the exhaust air outlet 9. The exhaust air passage 17 is configured so that the room air 6 flowing through the exhaust air passage 17 flows from the upper side portion 3a of the window frame 3 toward the lower side portion 3b of the window frame 3. On the other hand, the air supply air passage 18 is an air passage that is provided between the heat transfer plate 16 and the outdoor daylight collecting portion 15 and communicates the air supply air inlet 10 and the air supply outlet 11. The air supply air passage 18 is configured such that the outdoor air 7 flowing through the air supply air passage 18 flows from the lower side portion 3b of the window frame 3 toward the upper side portion 3a of the window frame 3. That is, the air flow direction of the indoor air 6 flowing through the exhaust air passage 17 and the air flow direction of the outdoor air 7 flowing through the air supply air passage 18 are opposed to each other.

  Next, heat exchange ventilation in the heat exchange type ventilation device 1 will be described with reference to FIG.

  When performing heat exchange ventilation, the heat exchange type ventilation device 1 operates the exhaust blower 12 and the supply air blower 13 of the heat exchange element 5.

  As shown in FIG. 4, the heat exchange element 5 drives the exhaust blower 12 provided in the upper side portion 3a of the window frame 3 to drive the indoor air 6 from the exhaust inlet 8 provided in the upper side portion 3a on the indoor side. Through the exhaust blower 12 and flows through the exhaust air passage 17 of the heat exchange element 5, and the indoor air 6 is discharged to the outside from the exhaust outlet 9 provided on the lower side portion 3b of the window frame 3 outside the room. To do.

  On the other hand, the heat exchange element 5 drives the air supply blower 13 provided in the lower side portion 3b of the window frame 3 to suck the outdoor air 7 from the air supply inlet 10 provided in the lower side portion 3b of the outdoor side to supply air. The outdoor air 7 is taken into the room through the air supply passage 18 of the heat exchange element 5 via the air blower 13 and the air supply outlet 11 provided on the upper side 3a on the indoor side.

  The heat exchange element 5 performs heat exchange between the indoor air 6 (exhaust airflow) flowing through the exhaust air passage 17 and the outdoor air 7 (air supply airflow) flowing through the air supply air passage 18 via the heat transfer plate 16. To do. As a result, the heat exchange element 5 transfers the heat of the indoor air 6 released to the outside to the outdoor air 7 taken into the room when ventilation is performed, suppresses the release of unnecessary heat, and recovers the heat to the room. is doing.

  As described above, according to the heat exchange ventilation device 1 according to the first embodiment, the following effects can be enjoyed.

  (1) By providing the indoor side daylighting section 14 composed of a pair of first daylighting plates 14b facing each other with the first hollow layer 14a interposed therebetween, the indoor air 6 on the indoor side of the indoor side daylighting section 14 and the exhaust air. Heat transfer between the indoor air 6 flowing through the air passage 17 (the indoor air 6 whose temperature has dropped due to heat exchange with the outdoor air 7) is suppressed. Therefore, even when the temperature of the outdoor air 7 is low, such as in winter, the temperature of the indoor air 6 on the indoor surface of the indoor daylighting section 14 decreases due to the indoor air 6 that has exchanged heat with the outdoor air 7 and has decreased in temperature. Is suppressed. As a result, it is possible to suppress dew condensation (condensation on the indoor surface of the indoor daylighting section 14) caused by the temperature of the indoor air 6 on the indoor side of the indoor daylighting section 14 lowering. That is, the heat exchange type ventilation device 1 capable of suppressing dew condensation on the indoor surface can be provided.

  (2) By providing the outdoor side light collecting portion 15 composed of the pair of second daylighting plates 15b opposed to each other with the second hollow layer 15a interposed therebetween, the heat exchange element 5 (outdoor air flowing through the air supply air passage 18) The heat transfer to the air 7) can be suppressed. That is, in the winter season, the temperature of the outdoor air 7 (the outdoor air 7 whose temperature has risen by exchanging heat with the indoor air 6) flowing through the air supply air passage 18 is equal to the outdoor air of the outdoor daylighting section 15. Since the decrease is suppressed by 7, the temperature of the room air 6 flowing through the exhaust air passage 17 can be increased as a result. As a result, the temperature drop of the indoor air 6 on the indoor side of the indoor daylighting section 14 is suppressed, and the dew condensation on the indoor side surface of the indoor side daylighting section 14 can be further suppressed.

  On the other hand, in the summer, the temperature of the outdoor air 7 (the outdoor air 7 whose temperature has risen by exchanging heat with the indoor air 6) flowing through the air supply air passage 18 is equal to the outdoor air on the outdoor side of the outdoor daylighting section 15. Further increase by 7 is suppressed. Therefore, it is possible to suppress an increase in indoor temperature that occurs when the outdoor air 7 is introduced into the room. As a result, it is possible to reduce the load on the indoor cooling for compensating for the rise in the indoor temperature due to the introduction of the outdoor air 7.

  (3) Since the air flow direction of the indoor air 6 flowing through the exhaust air passage 17 and the air flow direction of the outdoor air 7 flowing through the air supply air passage 18 are opposed to each other, they are uniform in the direction perpendicular to the air flow. Heat can be exchanged by the surface temperature distribution. That is, by reducing the local deviation in the surface temperature distribution of the heat exchange element 5 (the indoor air 6 flowing through the exhaust air passage 17), in the winter, the indoor air on the indoor side of the indoor daylighting unit 14 is reduced. The local decrease in the temperature of 6 is suppressed, and the dew condensation on the indoor surface of the indoor lighting section 14 can be further suppressed.

  (4) The outdoor air 7 blown out from the air supply outlet 11 is blown out from the air supply outlet 11 by being configured to flow to the lower side 3b side of the window frame 3 along the indoor side surface of the indoor daylighting section 14. The outdoor air 7 that flows in flows between the indoor side indoor air 6 of the indoor side lighting section 14 and the indoor side surface of the indoor side lighting section 14, and the indoor air 6 reaches the indoor side surface of the indoor side lighting section 14. Is reduced. As a result, in winter, it is possible to further suppress the dew condensation on the indoor surface of the indoor lighting section 14.

  (5) By providing the heat exchange element 5 superimposed on the daylighting section 4, the surface temperature of the heat transfer plate 16 of the heat exchange element 5 rises due to the radiant heat of the sunlight (sunlight), and the air flows through the air supply air passage 18 outdoors. The temperature of the air 7 can be raised. As a result, similarly to the above (2), it is possible to further suppress the dew condensation on the indoor surface of the indoor lighting section 14.

  (6) When the temperature of the outdoor air 7 is low, such as in the winter, by providing the heat exchange element 5 superimposed on the daylighting unit 4, the outdoor air 7 is radiated by sunlight (sunlight) when flowing through the air supply air passage 18. Since it is heated, it is possible to suppress a decrease in the indoor temperature that occurs when the outdoor air 7 is introduced into the room. As a result, it is possible to reduce the load of indoor heating for compensating for the decrease in indoor temperature due to the introduction of the outdoor air 7.

  (7) By providing an exhaust gas filter at the exhaust air inlet 8 and an air supply filter at the air supply inlet 10, solid matters such as dust in the indoor space and the outdoor space are prevented from flowing into the heat exchange element 5. be able to. As a result, solid matters are clogged inside the heat exchange element 5, and the solid matters serve as ventilation resistance to prevent the exhaust air volume and the supply air volume from decreasing, and also to prevent dirt attached to the surface of the heat transfer plate 16. It is possible to prevent the deterioration of the daylighting function of the window.

(Embodiment 2)
The heat exchange type ventilation device 1 according to the second embodiment of the present invention is different from the first embodiment in that a partition member 20 is provided on the indoor side so as to overlap the indoor side lighting part 14 with a predetermined gap. .. The configuration of the heat exchange type ventilation device 1 other than this is the same as that of the first embodiment. Hereinafter, the contents already described in the first embodiment will not be described again as appropriate, and the points different from the first embodiment will be mainly described.

  A heat exchange type ventilation device 1 according to Embodiment 2 of the present invention will be described with reference to FIG. FIG. 5 is a schematic cross-sectional view of the heat exchange type ventilation device 1 according to the second embodiment of the present invention.

  As shown in FIG. 5, the heat exchange type ventilation device 1 includes a mounting portion 19 provided on the window frame 3 and a partition member 20 hanging from the mounting portion 19.

  The attachment portion 19 is provided at a predetermined position on the indoor side of the upper side portion 3a of the window frame 3, and the upper end portion of the partition member 20 is attached thereto.

  The partition member 20 has an upper end portion attached to the mounting portion 19, and hangs down on the indoor side of the indoor daylighting section 14 so as to cover the entire surface of the indoor daylighting section 14 at a predetermined distance from the indoor side daylighting section 14. ing. As the partition member 20, for example, a light shielding curtain is used.

  The air supply outlet 11 provided on the upper side portion 3 a of the window frame 3 is arranged between the indoor side lighting portion 14 and the partition member 20. The outdoor air 7 blown out from the air supply outlet 11 flows through the space between the indoor daylighting section 14 and the partition member 20 toward the lower side portion 3b of the window frame 3, and the lower end portion of the partition member 20 and the window frame. It flows into the room from between the lower side part 3b of 3 and.

  As described above, according to the heat exchange type ventilation device 1 according to the second embodiment, the following effects can be enjoyed.

  (8) By providing the partition member that covers the entire surface of the indoor daylighting section 14 on the indoor side, the circulation of the indoor air 6 on the indoor side of the indoor daylighting section 14 is suppressed, and the indoor surface of the indoor side daylighting section 14 is suppressed. It is possible to effectively reduce the indoor air 6 that reaches to. As a result, dew condensation on the indoor surface of the indoor lighting section 14 can be further suppressed.

  (9) When the temperature of the outdoor air 7 is low, such as in winter, the outdoor air 7 blown out from the air supply outlet 11 is illuminated by the partition member that covers the entire surface of the indoor daylighting section 14 on the indoor side. When flowing through the space between the part 14 and the partition member 20, it is heated by the radiant heat of sunlight (sunlight). Therefore, it is possible to suppress a decrease in the indoor temperature that occurs when the outdoor air 7 is introduced into the room. As a result, it is possible to reduce the load of indoor heating for compensating for the decrease in indoor temperature due to the introduction of the outdoor air 7.

  The present invention has been described above based on the embodiment. It should be understood by those skilled in the art that these embodiments are mere examples, and that various modifications can be made to the combinations of their respective constituent elements and respective processing processes, and that such modifications are also within the scope of the present invention. By the way.

  In the present embodiment, the daylighting section 4 is configured to include the indoor side daylighting section 14 having the first hollow layer 14a and the outdoor side daylighting section 15 having the second hollow layer 15a, but the present invention is not limited to this. For example, the daylighting section 4 may be configured to include the indoor side daylighting section 14 having the first hollow layer 14a and the outdoor side daylighting section 15 having no hollow layer (for example, only the single second daylighting plate 15b). Good.

  In the present embodiment, an exhaust filter is attached to the exhaust air inlet 8 (or the exhaust air passage 17 in the vicinity of the exhaust air inlet 8), and at the air supply air inlet 10 (or the air supply air passage 18 in the vicinity of the air supply air inlet 10). Although the air supply filter is attached, the present invention is not limited to this. For example, since solid matter such as pollen or dust is present in the outdoor space more than in the indoor space, the air supply filter may be attached only to the air supply inlet 10 side. As a result, it is possible to prevent at least the inflow of solid matter into the air supply air passage 18 (reduction of the air supply air quantity in the air supply air passage 18) where the solid material is more likely to be clogged than the exhaust air passage 17.

  INDUSTRIAL APPLICABILITY The heat exchange type ventilation device according to the present invention is useful as a heat exchange type ventilation device that enables heat exchange between indoor air and outdoor air. It has an effect mainly when used for windows of buildings.

1 Heat Exchange Ventilator 2 House Wall 3 Window Frame 3a Upper Side 3b Lower Side 3c Left Side 3d Right Side 4 Daylighting Part 5 Heat Exchange Element 6 Indoor Air 7 Outdoor Air 8 Exhaust Inlet 9 Exhaust Outlet 10 Air Supply Inlet 11 Air Supply Outlet 12 Exhaust Air Blower 13 Air Supply Blower 14 Indoor Side Lighting Part 14a First Hollow Layer 14b First Lighting Plate 14c First Spacer Member 15 Outdoor Side Lighting Part 15a Second Hollow Layer 15b Second Lighting Plate 15c Second Spacer Member 16 Heat transfer plate 17 Exhaust air passage 18 Air supply air passage 19 Mounting portion 20 Partition member 100 Ventilator 101 Indoor side window glass 102 Outdoor side window glass 103 Separated passage 104 First casing 105 Second casing 106 Outside air circulation port 107 Inside air circulation mouth

Claims (5)

Window frame,
A daylighting section provided inside the window frame, having an indoor daylighting section located on the indoor side and an outdoor daylighting section located on the outdoor side,
Between the indoor daylighting section and the outdoor daylighting section, a heat exchange element disposed so as to overlap with the daylighting section,
The window frame is provided on the indoor side and has an exhaust inlet for taking in indoor air, an exhaust outlet provided for the outdoor side and for blowing out the indoor air, and an outdoor side for taking in outdoor air. An air flow inlet, an air supply air outlet provided on the indoor side for blowing out the outdoor air, an exhaust air blower for blowing the indoor air from the exhaust air inlet to the exhaust air outlet, and the air supply air flow from the air supply inlet An air supply blower that blows the outdoor air to the outlet,
The heat exchange element is provided between the indoor side lighting section and the outdoor side lighting section, and has a light-transmitting heat transfer plate, and is provided between the indoor side lighting section and the heat transfer plate. An exhaust air passage that connects the exhaust inlet and the exhaust outlet, and a supply air passage that is provided between the heat transfer plate and the outdoor-side lighting portion and that connects the supply air inlet and the supply air outlet. And an air passage,
The heat transfer plate performs heat exchange between the indoor air flowing through the exhaust air passage and the outdoor air flowing through the air supply air passage,
The heat exchanging type ventilation device, wherein the indoor daylighting section is composed of a pair of first daylighting plates facing each other with a first hollow layer in between.   The heat-exchanging ventilator according to claim 1, wherein the outdoor daylighting section is composed of a pair of second daylighting plates facing each other with a second hollow layer in between. The indoor air is taken in from the exhaust inlet provided on the upper side of the window frame, flows through the exhaust air passage, and is blown out from the exhaust outlet provided on the lower side of the window frame,
The outdoor air is taken in from the air supply inlet provided in the lower side portion of the window frame, flows through the air supply air passage, and is blown out from the air supply outlet provided in the upper side portion of the window frame,
The heat exchange ventilation device according to claim 1 or 2, wherein an air flow direction of the exhaust air passage and an air flow direction of the air supply air passage are opposed to each other.   The air supply outlet is provided on the upper side of the window frame so that the outdoor air blown from the air supply outlet flows to the lower side of the window frame along the indoor surface of the indoor daylighting section. It is arrange | positioned, The heat-exchange-type ventilation apparatus of any one of Claims 1-3 characterized by the above-mentioned. On the indoor side of the indoor side lighting section, further comprising a partition member having a predetermined distance from the indoor side lighting section and covering the indoor side lighting section,
The heat exchange ventilator according to claim 4, wherein the air supply outlet is arranged between the indoor side lighting section and the partition member.