WO2005124240A1 - 同時給排型換気装置 - Google Patents
同時給排型換気装置 Download PDFInfo
- Publication number
- WO2005124240A1 WO2005124240A1 PCT/JP2005/010394 JP2005010394W WO2005124240A1 WO 2005124240 A1 WO2005124240 A1 WO 2005124240A1 JP 2005010394 W JP2005010394 W JP 2005010394W WO 2005124240 A1 WO2005124240 A1 WO 2005124240A1
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- WO
- WIPO (PCT)
- Prior art keywords
- exhaust
- fan
- port
- air supply
- air
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
- F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/10—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with air supply, or exhaust, through perforated wall, floor or ceiling
Definitions
- the present invention relates to a simultaneous supply / discharge type ventilator that takes in outdoor air through a two-layer duct divided into an exhaust air path and an air supply air path, and discharges the indoor air to the outside.
- a conventional wall-mounted type simultaneous supply / discharge type ventilation device disclosed in Japanese Utility Model Application Laid-Open No. 57-46732 has a heat exchange element inside, and exchanges heat between indoor air and outdoor air to ventilate the room. Reduce environmental energy loss.
- the inside of a box-shaped main body attached to the wall of a building is divided into an exhaust passage and an intake passage.
- a blower for intake / exhaust whose rotation axis is perpendicular to the wall surface is provided inside the exhaust passage and the intake passage.
- the exhaust passage and the intake passage communicate with a two-layer duct provided through a wall or the like of a building.
- the outside of the double layer is divided into an exhaust air passage and an intake air passage.
- a heat exchange element is provided at a portion where the exhaust passage and the intake passage intersect, and heat is exchanged between outdoor air and indoor air.
- the blower for intake and exhaust is composed of an exhaust fan and an intake fan fixed to the ends of coaxial rotating shafts projecting from one motor to both ends.
- the exhaust fan and the intake fan are arranged near one side in the main body so as to overlap toward the wall, and a heat exchange element is arranged near the other side.
- Japanese Utility Model Laid-Open No. 2-536 discloses another simultaneous supply / discharge type ventilator.
- the exhaust air passage and the intake air passage are not configured in the same duct, but are connected to two independent exhaust ducts and intake ducts.
- An exhaust passage and an intake passage which are independent from each other are formed in the main body, and the exhaust passage and the intake passage intersect with each other in a heat exchanger so that heat can be exchanged.
- the intake blower and exhaust blower Thus, intake and exhaust are simultaneously performed.
- the exhaust blower and the intake blower have a rotation axis perpendicular to the mounting wall surface of the main body, and are arranged side by side in the direction along the mounting wall surface.
- the exhaust blower communicates with the outside of the exhaust fan via a heat exchanger, and the intake blower communicates with the intake duct via a heat exchanger.
- the simultaneous supply / discharge type ventilation device of the present invention is partitioned by a partition portion, connected to a two-layer duct in which a supply air passage and an exhaust air passage are formed, and attached to the indoor side wall surface.
- This ventilation device has a main body provided on the indoor side, and an air supply fan and an exhaust fan provided inside the main body.
- the air supply fan supplies air toward the indoor side, and the exhaust fan exhausts air toward the outdoor side.
- the rotating shafts of the air supply fan and the exhaust fan are arranged side by side in the direction along the indoor wall surface so as to be perpendicular to the indoor wall surface.
- the center of the two-layer duct is positioned between the rotation axis of the air supply fan and the rotation axis of the exhaust fan.
- the two-layer duct and the main body are attached so as to be closer to the rotation axis.
- the thickness of the main body in the depth direction is small, so that the size of the entire device can be reduced, and the ventilation performance of the simultaneous supply / discharge can be ensured.
- FIG. 1 shows the internal configuration of a simultaneous supply / discharge type ventilator according to an embodiment of the present invention. It is sectional drawing seen from the lower part.
- FIG. 2 is a front view showing a positional relationship between an outdoor air supply port, an outdoor air exhaust port, and an air supply fan in the ventilation device shown in FIG.
- FIG. 3 is an exploded perspective view showing a configuration of the ventilation device shown in FIG. 1.
- FIG. 5 is a side sectional view showing an internal configuration of the ventilation device shown in FIG. 1 on a side where an exhaust fan is provided.
- FIG. 6 is a rear view showing the configuration of an exhaust fan casing and an exhaust fan of the ventilator shown in FIG. 1.
- FIG. 7 is a perspective view showing a state where the ventilator shown in FIG. 1 is installed on an indoor wall.
- FIG. 8 is a partial cross-sectional view showing another configuration of the exhaust fan in the simultaneous supply / discharge ventilator according to the embodiment of the present invention.
- the simultaneous supply / discharge type ventilator includes a frame base 14 constituting a main body 50, an air supply fan (hereinafter, fan) 9, and an exhaust fan. (Hereinafter referred to as “fan”).
- the frame base 14 communicates with the supply air passage 4 and the exhaust air passage 5 formed by the partition 6 in the two-layer duct 3 penetrating the interior wall 2, and the adjacent outdoor air supply port 7 and the outdoor air exhaust 7. It is disposed on the indoor wall 2 with the mouth 8.
- the fan 9 is provided inside the main body 50 surrounded by the frame base 14 and the louver 1, and supplies air toward the indoor side. That is, air is supplied from the outdoor air supply port 7 to the indoor air supply ports 11 and 12.
- the fan 10 is provided beside the fan 9 and exhausts air to the outside. That is, air is exhausted from the indoor exhaust port 13 to the outdoor exhaust port 8.
- the fans 9 and 10 are arranged side by side along the wall of the interior wall 2 so that the rotation axis 9A of the fan 9 and the rotation axis 10A of the fan 10 are perpendicular to the wall of the interior wall 2.
- the shape of a fan is longer in the direction perpendicular to the axis of rotation than in the direction parallel to the axis of rotation. Therefore, when the fans 9 and 10 are arranged with respect to the frame base 14 so that the suction ports of the fans are substantially parallel to the wall surface of the indoor wall 2, the projecting length of the fan toward the indoor side can be improved. Becomes smaller. That is, the thickness of the main body 50 protruding toward the indoor side is reduced.
- the rotation axes 9A and 10A of the fans 9 and 10 are consequently perpendicular to the interior wall 2. It may be installed slightly inclined from it. Further, depending on the design, the main body 50 may be configured such that the rotating shafts 9A and 10A are slightly inclined from the vertical direction with respect to the indoor wall 2. Even in these cases, when the suction ports 31A and 31B of the fans 9 and 10 provided in the main body 50 are substantially parallel to each other along the wall surface of the indoor wall 2, they are included in the category of the present configuration.
- the center of the two-layer duct 3 is located between the rotation axis 9 A of the fan 9 and the rotation axis 10 A of the fan 10. It is disposed so as to be closer to the rotating shaft 9A side.
- the rotary shaft 9A is disposed at a position substantially at the center of gravity of the outdoor air supply port 7, but may be disposed at a position above or below this.
- a turbo fan having a fan diameter of 120 mm is used for each of the fans 9 and 10.
- the double-layer duct 3 has a nominal diameter of 100 mm and is divided into two parts by a partition 6 in the horizontal direction. Are formed.
- the air path partitioning portion 19 corresponds to an intermediate position between the rotating shafts 9A and 10A. In this state, the supply air volume and the exhaust air volume are measured when the two-layer duct 3 is arranged at a position of 40 mm from the intermediate position near the fan 9 and at a position of 55 mm.
- the experimental conditions were a temperature of 26.4 ° C, a humidity of 58%, an atmospheric pressure of 1015 hPa, 60 Hz, a power supply voltage of 115 V, and a static pressure inside the chamber of OmmHO.
- supply air volume is 29. 3m 3 / h
- exhaust air volume is 25. 6m 3 / h.
- the supply air volume is 30.5m h and the exhaust air volume is 26.0m 3 / h.
- the rate of increase of the supply air flow is 55% for the case of 40mm
- the increase rate of exhaust air flow is 1.6% for the case of 40mm.
- the rotary shaft 9 A is disposed so as to be included in the opening of the outdoor air supply port 7 communicating with the air supply passage 4 of the two-layer duct 3. It is preferable to be done.
- the suction port 31A of the fan 9 approaches the outdoor-side air supply port 7 and is set at a position facing the outside air supply port 7. Therefore, the outdoor air can be taken in from the two-layer duct 3 via the air passage formed directly from the suction port 31A of the fan 9, and excellent air supply air volume characteristics can be obtained. Further, by setting the suction port 31A of the fan 9 at a position close to and facing the outdoor air supply port 7, the outdoor air outlet 8 is provided near the fan 9.
- the portion 4A having the longest distance from the partition portion 6 to the inner surface of the air supply passage 4 in the direction perpendicular to the partition portion 6 It is preferable to configure so as to be included.
- the suction port 31A of the fan 9 is provided at a position facing the outdoor air supply port 7. This positional relationship is based on the main body 50 when viewed from the front toward the indoor wall 2.
- the suction port 31A of the fan 9 is provided at a position facing the outdoor air supply port 7.
- the central portion of the outdoor air supply port 7 is brought close to and opposed to the suction port 31A of the fan 9, so that the outdoor air supply port 7 is provided outside the air chamber near the center of the suction port 31A of the fan 9. Exists. Therefore, the resistance of the intake air passage of the supply air flow taken in from inside the two-layer duct 3 is reduced. Further, since the outdoor exhaust port 8 is provided near the fan 9, the performance of the fan 10 can be ensured.
- the inlet 31 A of the fan 9 provided at a position where a part of the opening of the outdoor air outlet 8 is opposed to the outdoor air inlet 7. Les, which is preferably included inside.
- a part of the partition 6 provided inside the two-layer duct 3 is included in the opening of the suction port 31 A of the fan 9. It can be arranged as a configuration. Even with such a configuration, the exhaust passage 30 formed from the outdoor-side exhaust port 8 to the discharge port of the fan 10 becomes longer. Further, even when the depth of the main body 50 in the vertical direction with respect to the indoor wall 2 is reduced to make the main body 50 smaller, the exhaust passage 30 can be formed obliquely longer with respect to the indoor wall 2. Therefore, the exhaust flow can be guided to the outdoor-side exhaust port 8 without suddenly changing the flow direction of the exhaust flow, and the exhaust air volume increases.
- the opening of the outdoor exhaust port 8 communicating with the exhaust air passage 5 of the two-layer duct 3 is formed by the fan 10 configured on the indoor side. It may not be included inside the suction port 31B. In other words, it is better that the outdoor exhaust port 8 has at least a portion that does not overlap with the suction port 31B of the fan 10.
- the rotation axis 10A of the fan 10 is disposed above a center line with respect to the length of the frame base 14 in the vertical direction. That is, it is preferable that the fan 10 be disposed in the main body 50 at an upper position. As a result, the distance from the indoor exhaust port 13 formed on the lower surface of the louver 1 to the suction port 31B of the fan 10 becomes longer. Therefore, even if the thickness of the main body 50 in the vertical direction is reduced on the indoor wall 2 to reduce the size and the space between the suction port 31B of the fan 10 and the back side of the front of the main body 50 is reduced, the fan 10 A suction space for suction can be secured.
- the rotation axis 10A of the fan 10 be disposed so as to be located vertically above the main body 50 with respect to the rotation axis 9A of the fan 9.
- the exhaust passage 30 from the discharge port of the fan 10 to the outdoor exhaust port 13 can be formed to be long.
- the louver 1 is a resin box shape and covers these fans from the front so as to include the fans 9 and 10 inside.
- the louver 1 is provided with an indoor air supply port 11 of the fan 9 on a front surface and an indoor air supply port 12 on an upper surface, and an indoor air outlet 13 on a diagonal lower surface thereof. ing.
- the indoor side air supply ports 11 and 12 and the indoor side exhaust port 13 are arranged diagonally away from the main body 50. Therefore, the supply air flow to be supplied to the room and the exhaust air flow that sucks the indoor air are formed at separate positions in the main body 50. This prevents a short circuit between the supply air flow and the exhaust air flow, and effectively ventilates the room.
- two lock terminals 1A are provided on the side surface of the louver 1.
- the lock terminal 1A is engaged with a lock terminal engagement opening (not shown) provided in the frame base 14 and a lock terminal engagement opening 17B provided in the exhaust fan casing (hereinafter, casing) 17.
- the louver 1 is detachably provided on the indoor side.
- the indoor air supply port 11 is provided in a horizontally long shape above the front surface of the louver 1.
- the louver 1 has a fan 10 on one side on the front and rear sides.
- a motor 10C for driving the fan 10 is fixed to an exhaust motor fixing plate (hereinafter, fixed plate) 15 by screws via a flange formed on a side portion thereof.
- the fixing plate 15 is fixed by screws to a plurality of bosses 14A standing on the frame base 14.
- the fixing plate 15 is held by the boss 14A in front of the frame base 14 with a predetermined space between the fixing plate 15 and the electric component case 16 between the fixing plate 15 and the frame base 14.
- the electrical case 16 houses a circuit board for driving and controlling the exhaust motor 10C and the air supply motor 9C, a relay circuit for operating the fans in a strong and weak manner, and a display unit for displaying an operating state.
- Fans 9 and 10 are preferably formed of a centrifugal fan, particularly fan 10 is preferably formed of a centrifugal fan.
- the centrifugal fan referred to here has a suction port that sucks in a direction parallel to the rotation axis of the fan, and forms an airflow that is discharged outward or obliquely rearward in the direction perpendicular to the rotation axis.
- a turbo fan or a sirocco fan is used.
- the fans 9 and 10 shown in FIG. 1 are turbofans of the same shape as an example of a centrifugal fan.
- the fan 10 By configuring the fan 10 as a centrifugal fan, it is possible to provide a discharge port in a centrifugal direction at an arbitrary location around the fan 10. Therefore, it is possible to set the discharge port of the fan 10 communicating with the outdoor exhaust port 8 without impairing the performance of the fan 10. Further, since no space behind the fan 10 is required, the thickness of the main body 50 in a direction perpendicular to the indoor wall 2 can be reduced.
- the indoor exhaust port 13 and the indoor air supply port 12 are provided on the side surface of the main body 50 without impairing the exhaust performance and air supply performance. Therefore, the body 50 can be made thinner.
- the fan 10 is surrounded by a casing 17 around the fan 10.
- a bell mouth 17A In front of the suction port of the casing 17 is provided a bell mouth 17A having a smaller diameter than the opening diameter of the suction port and having an opening whose inner peripheral part is curled toward the fan 10 side.
- the bell mouth 17A is detachably attached to the casing 17. When the bell mouth 17A is removed and the spinner 10B fixing the fan 10 is turned and loosened in the same direction as the fan rotation, the fan 10 Can be removed from the motor IOC.
- FIG. 5 is a side sectional view showing the configuration inside the main body 50 on the side where the fan 10 is provided.
- the casing 17 has a shape covering the fan 10, and has a suction port and a discharge port 31 as shown in FIG.
- the suction port of the casing 17 is denoted by a reference numeral and not shown, it substantially coincides with the suction port 31B of the fan 10.
- the exhaust passage 30 is formed from the outlet 31 of the casing 17 to the outdoor outlet 8.
- the exhaust passage 30 is preferably provided between the fan 9 provided on the side of the fan 10 and the indoor wall 2.
- the fan 10 can be arranged close to the fan 9, and the lateral dimension of the main body 50 is reduced.
- inclined portions 30A and 30B are formed which are inclined toward the outdoor exhaust port 8 with respect to the indoor wall 2. It is preferable that By providing the inclined portions 30A and 30B in this manner, the airflow discharged from the fan 10 can be smoothly introduced into the outdoor-side exhaust port 8. Therefore, the airflow resistance can be reduced and the airflow characteristics of the exhaust gas can be improved. Further, the exhaust passage 30 can be formed by effectively utilizing the space on the indoor wall 2 side of the fan 9 without increasing the size of the main body 50.
- the inclined portions 30A and 30B are formed continuously. Thereby, the exhaust passage 30 from the discharge port 31 of the casing 17 to the outdoor exhaust port 8 is inclined toward the outdoor exhaust port 8 with respect to the wall surface of the indoor wall 2 as a whole. Therefore, the airflow discharged from the fan 10 is more smoothly introduced into the outdoor exhaust port 8, the airflow resistance is reduced, and the airflow characteristics of the exhaust flow are further improved.
- An inclined portion 30A is formed on the upstream side of the side wall of the exhaust passage 30, and an inclined portion 30B is formed on the downstream side.
- the angle Y of the inclined portion 30B with respect to the discharge port 31 is larger than the angle X of the inclined portion 30A with respect to the discharge port 31. That is, it is preferable that the inclination angle of the side wall of the exhaust passage 30 with respect to the discharge port 31 of the exhaust passage 30 is formed larger on the downstream side than on the upstream side.
- the depth dimension of the 50 indoor walls 2 side becomes smaller. That is, improvement of ventilation performance and downsizing of the device are realized.
- a side wall portion of the exhaust passage 30 facing the fan 9 side is formed of a foam material to prevent occurrence of dew condensation.
- the front surface of the louver 1 is shaped so that its central portion protrudes forward beyond its lateral portions. With this shape, the volume of the space formed by the suction port 31B of the fan 10 and the backside of the front surface of the bar 1 is ensured. Therefore, a suction space is formed in front of the suction port 31B of the fan 10, and a required exhaust air volume is secured. In addition, it is possible to reduce the thickness of the main body 50 without sacrificing the exhaust performance, and to reduce the size of the apparatus.
- the front surface of the louver 1 may be a shape in which the front cross-sectional shape is curved over the entire surface, or a front cross-sectional shape in which a flat shape is formed in the center and a large curved surface is formed in the upper or lower part.
- an inclined surface 17 C that is inclined obliquely downward toward the indoor wall 2 is formed on the outdoor air outlet 8 side of the casing 17. Accordingly, an exhaust passage 30 through which room air is introduced is formed between the inclined surface 17C and the lower surface of the louver 1, and the effect of reducing airflow resistance is exerted. Further, even when a large curved surface is formed in the lower portion of the louver 1 to make the main body 50 look thin when attached to the indoor wall 2, the ventilation resistance is reduced by the exhaust passage 30 formed by the inclined surface 17C. Therefore, the body 50 can be made thin without sacrificing the exhaust performance.
- FIG. 6 is a rear view showing the configuration of the exhaust fan casing and the exhaust fan of the simultaneous supply / discharge type ventilation device according to the present embodiment.
- a guide portion 32 surrounding the outer shape of the blade 10D of the fan 10.
- the guide part 32 is formed such that the distance from the outer shape of the blade 10D increases toward the discharge port 31 on the downstream side.
- the guide portion 32 may be formed on a part or all of the outside of the outer shape of the blade 10D.
- a fan 9 is provided adjacent to the fan 10 with an air path partitioning section 19 interposing an air supply passage 40 and an exhaust passage 30 interposed therebetween.
- the suction port 31A of the fan 9 is provided toward the indoor wall 2 side.
- the motor 9C for driving the fan 9 is provided on the front side of the louver 1 relative to the fan 9.
- the motor 9C is fixed to an air supply motor fixing plate (hereinafter, fixed plate) 18 by screws via a flange formed on a side portion of the motor 9C.
- the fixing plate 18 is fixed to the orifice 20.
- the orifice 20 is located closer to the indoor wall 2 than the suction port 31A of the fan 9, is smaller in diameter than the opening diameter of the suction port 31A of the fan 9, and has an opening whose inner peripheral portion is curled toward the fan side. Having a part.
- the orifice 20 is fixed to a plurality of bosses 14A standing upright from the frame base 14 by screws, and is held at a predetermined interval from the frame base 14 by the bosses 14A and held indoors.
- a suction side casing (hereinafter, referred to as a casing) 21 is interposed between the orifice 20 and the frame base 14 so as to be sandwiched therebetween.
- the casing 21 is formed of a heat insulating material such as a foam material in order to prevent dew condensation because the casing 21 is located in a flow path of the supply airflow through which the outdoor cool air flows.
- the casing 22 is arranged so as to cover the fixed plate 18 so as to form an air supply passage 40 with a predetermined interval between the casing 22 and the fixed plate 18.
- the opening 22A is formed in such a size that the motor 9C and the casing 22 come into close contact with each other when the motor 9C is housed in the opening 22A, and prevents the supply air flow from leaking to the adjacent exhaust passage 30 side.
- the casing 22 is formed of a heat insulating material such as a foam material in order to prevent dew condensation because the casing 22 is located in a flow path of the supply airflow through which the outdoor cool air flows.
- all of the casings 21 and 22 may be formed of a heat insulating material such as a foam material.
- a configuration may be adopted in which each of these components is formed of a foam material as an integral member. In such a case, there is an effect in reducing the gap leakage area in the flow path by reducing the number of parts and integrating the parts, and the strength of the product can be improved by the foam-formed part.
- the side wall of the casing 21 on the fan 10 side may be configured to extend so as to be in contact with the front back side of the louver 1.
- the side wall of the casing 22 on the fan 10 side may be extended from the rear side of the front of the louver 1 to the frame base 14.
- the fixing plates 15 and 18 have a ring-shaped recess 41 formed by drawing as a mounting portion for the motors 9C and 10C.
- the frame base 14 is fixed to the mounting plate 23 fixed to the indoor wall 2 by engaging the upper portion with a claw and screwing the lower portion with a screw or the like.
- a shutter cover 24 is mounted on the frame base 14 between the frame base 14 and the mounting plate 23. Between the frame base 14 and the shutter cover 24, a shutter 25 for opening and closing the outdoor-side air supply port 7 and the outdoor-side exhaust port 8 is openably and closably interposed.
- the mounting plate 23 is provided with a communication opening (not shown) having a shape in which the outdoor air supply port 7 and the outdoor air outlet 8 are combined.
- the communication opening is provided with a two-layer duct connection portion (not shown).
- the mounting plate 23 functions as a two-layer duct mounting portion. That is, the mounting plate 23 determines the positional relationship between the two-layer duct 3 and the main body 50 as described above.
- a two-layer duct connection member may be provided separately and attached to the attachment plate 23.
- the two-layer duct connection portion has a connection air supply opening 23A and a connection exhaust air opening 23B in which the communication opening is divided into two.
- the two-layer duct 3 is provided so as to penetrate the indoor wall 2 and communicate between the outside and the room.
- the two-layer duct connection portion connects the air supply passage 4 of the two-layer duct 3 with the outdoor air supply port 7 through the connection air supply opening 23A, and the two-layer duct 3 through the connection exhaust opening 23B.
- the exhaust air path 5 and the outdoor exhaust port 8 communicate with each other. That is, the two-layer duct connection portion of the mounting plate 23 is connected to the two-layer duct 3 accommodated in the indoor wall 2, and the mounting plate 23 is fixed to the wall surface of the indoor wall 2.
- the outside air supply port 7 and outside air outlet 8 of the main body 50 are aligned with the connection air supply opening 23A and the connection exhaust air opening 23B formed in the double-layer duct connection part, and the frame base 14 is attached to the mounting plate. Fixed to 23. In this way, the air supply path 4 and the outdoor air supply port 7 communicate with each other, and the exhaust air path 5 and the outdoor air outlet 8 communicate with each other to form the independent air supply path 40 and the exhaust path 30. .
- an outdoor hood 26 is provided so as to cover the two-layer duct 3 protruding from the outdoor wall surface. I am.
- the outdoor hood 26 has an outdoor air supply opening 26A for allowing outdoor air to flow into the air supply passage 4 and an outdoor air exhaust opening 26B for discharging indoor air exhausted from the exhaust air passage 5 to the outside. are provided respectively.
- FIG. 4 is a side sectional view showing the configuration inside the main body 50 on the side where the fan 9 is provided.
- the outdoor air discharged from the fan 9 in the centrifugal direction is then supplied into the room through the air supply passage 40A and the air supply passage 40B.
- the air supply passage 40A is formed in the centrifugal direction of the fan 9 by being surrounded by the upper surface rear side of the louver 1, the fixing plate 18 and the orifice 20.
- the air supply passage 40B passes through the space formed between the lower back side of the casing 22 and the lower part of the fixing plate 18 from the centrifugal direction of the fan 9, and is connected to the fixing plate 18 so as to be folded upward toward the body 50. 22 is formed between the back side.
- the outdoor air is blown upward and / or obliquely forward from the upper surface air supply port 12 into the room via the air supply passage 40A. Further, the air is blown obliquely forward and upward from the front air supply opening 11 into the room via the air supply passage 40B.
- the supply air flow path inside the main body 50 into two flow paths as described above, it is preferable that the air flow blown into the room is blown into the room in a wide range without being biased in one direction. As a result, the supply air can be efficiently distributed throughout the room.
- a centrifugal fan for example, a turbo fan or a sirocco fan
- the discharge ports can be freely configured at a plurality of locations in the centrifugal direction.
- the air passage resistance of the air supply passage 40 is reduced, and the ability of the fan 9 can be further exhibited.
- a turbo fan when used, it is possible to exhibit a certain degree of fan characteristics without forming a spiral casing, so that the size of the main body 50 can be reduced while ensuring ventilation performance. .
- the same effect can be obtained by using a turbo fan as the fan 10.
- the upper surface air supply port 12 and the indoor exhaust port 13 be provided on the side surface of the main body 50.
- the air supply passage 40 and the exhaust passage 30 can be formed without providing a large space between the fan 9 or the fan 10 and the front rear side of the main body 50. Therefore, the main body 50 can be formed thin by reducing the depth dimension. Also, since the indoor exhaust port 13 and the indoor air supply port 12 are provided on the side of the main body 50, respectively, An airflow can be formed to prevent the circuit from being driven.
- the front surface of the louver 1 is formed so that its central portion protrudes forward from the side portion, and the flow path of the air supply passage 40B formed on the back side of the front surface of the louver 1 is formed. It is preferable to secure the road volume.
- the specific example of the intended shape of the front surface of the louver 1 is as described above.
- the air supply flow flowing through the air supply passage 40B rises upward from below the motor 9C, splits into two parts, flows upward so as to wrap the side surface thereof, and reaches the front air supply port 11. Is preferred. As a result, the motor 9C is cooled and the temperature rise is reduced.
- a filter 27 housed in a filter frame 28 is provided between the outdoor air supply port 7 and the suction port of the fan 9, that is, on the side of the exhaust passage 30. It is preferable.
- the filter 27 made of a resin material having high flexibility collects pollen and dust contained in the outdoor air so as not to supply them indoors.
- the filter 27 is formed in a pleated shape, and preferably has flexibility so that it can be bent in the middle of the filter 27. With this configuration, when removing the louver 1 from the frame base 14 and pulling out the handle of the filter frame 28 downward, the filter 27 is pulled out radially forward together with the filter frame 28. Therefore, even when the filter 27 is provided near the indoor wall 2, the workability in pulling out the filter 27 for cleaning or replacement is improved.
- This configuration is particularly useful in a simultaneous supply / discharge type ventilator for miniaturization and thinning as in the present embodiment.
- an air layer 29 in which the filter 27 is not formed is formed below the filter frame 28.
- the size of the device main body 50 is reduced in the horizontal dimension and the depth dimension on the indoor wall side.
- a fan with a 120 mm fan diameter When the Bofan is used for both fans 9 and 10, the size of the main body 50 can be reduced to about 320 mm in width, about 190 mm in length, and about 100 mm in depth on the side of the indoor wall 2.
- the simultaneous supply / exhaust ventilation system of this size can also perform ventilation operation with a constant ventilation flow rate that replaces 8.7 m 2 to 21.8 m 2 indoor air in two hours.
- FIG. 7 is a perspective view showing a state in which the simultaneous supply / discharge type ventilation device of the present invention is installed on an indoor wall.
- the simultaneous supply / discharge type ventilation device according to the present embodiment is installed on the wall surface of the indoor wall 2 on which the window frame 2A is formed, at a predetermined interval from the window frame 2A and the wall surface adjacent to the indoor wall 2.
- the upper surface of the main unit 50 is disposed at a position about 10 cm to 40 cm below the ceiling surface 2B, and at a distance of 10 cm or more from the side surface of the main unit 50, the window frame 2A and the wall 2B adjacent to the indoor wall 2 are provided. It is desirable to set up so that there exists. With this arrangement, a curtain or the like is not sucked into the opening of the indoor side exhaust port 13. In addition, there is no obstacle near the indoor exhaust port 13 and the indoor air supply ports 11 and 12 that hinders airflow formation.
- FIG. 8 is a partial cross-sectional view showing another configuration of the exhaust fan in the simultaneous supply / discharge type ventilation device of the present embodiment.
- the fan 10 is arranged with the rotation axis 10A of the fan 10 inclined.
- the centrifugal discharge direction 33 of the fan 10 is parallel to the fan 9 side wall forming the exhaust passage 30. That is, the rotation axis 10A of the fan 10 is inclined so that the discharge centrifugal direction 33 of the fan 10 is parallel to one of the inclined portions 30A and 30B forming the side wall of the fan 9 or the entire side wall.
- Other configurations are the same as those in FIGS.
- the simultaneous supply / discharge type ventilation device since the device body is small and thin, it can be applied to a device connected to a two-layer duct by simultaneously supplying and exhausting air. . It is also useful when applied to heat exchange ventilators.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-177865 | 2004-06-16 | ||
JP2004177865A JP4432633B2 (ja) | 2004-06-16 | 2004-06-16 | 同時給排形換気装置 |
Publications (1)
Publication Number | Publication Date |
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WO2005124240A1 true WO2005124240A1 (ja) | 2005-12-29 |
Family
ID=35509778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/010394 WO2005124240A1 (ja) | 2004-06-16 | 2005-06-07 | 同時給排型換気装置 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4432633B2 (ja) |
CN (1) | CN100476309C (ja) |
WO (1) | WO2005124240A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4720577B2 (ja) * | 2006-03-29 | 2011-07-13 | パナソニック株式会社 | 給気型換気装置 |
FR2954464B1 (fr) * | 2009-12-21 | 2012-02-24 | Electricite De France | Separateur de flux d'air bidirectionnel pour installation a double flux |
JP6142284B2 (ja) * | 2013-01-22 | 2017-06-07 | パナソニックIpマネジメント株式会社 | 換気装置 |
KR102279407B1 (ko) * | 2019-11-07 | 2021-07-20 | 주식회사 엔이알 | 환기형 공기청정기 |
CN113606689A (zh) * | 2020-04-16 | 2021-11-05 | 株式会社青木房屋企画公司 | 加压型换热换气式房屋 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5746732U (ja) * | 1980-08-29 | 1982-03-15 | ||
JPS61186027U (ja) * | 1985-05-13 | 1986-11-20 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4711293A (en) * | 1986-08-28 | 1987-12-08 | Kabushiki Kaisha Toshiba | Ventilator of the heat exchange type |
JP3144977B2 (ja) * | 1994-02-21 | 2001-03-12 | 松下精工株式会社 | 換気装置 |
-
2004
- 2004-06-16 JP JP2004177865A patent/JP4432633B2/ja not_active Expired - Fee Related
-
2005
- 2005-06-07 CN CNB200580005353XA patent/CN100476309C/zh not_active Expired - Fee Related
- 2005-06-07 WO PCT/JP2005/010394 patent/WO2005124240A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5746732U (ja) * | 1980-08-29 | 1982-03-15 | ||
JPS61186027U (ja) * | 1985-05-13 | 1986-11-20 |
Also Published As
Publication number | Publication date |
---|---|
JP4432633B2 (ja) | 2010-03-17 |
CN1922443A (zh) | 2007-02-28 |
JP2006002969A (ja) | 2006-01-05 |
CN100476309C (zh) | 2009-04-08 |
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