JP4446701B2 - Central ventilation installation structure - Google Patents

Description

  The present invention relates to an installation structure of a central ventilation device that is installed in a building of a house and ventilates the interior.

As an example of a central ventilation device installed in a residential building, a technique described in Patent Document 1 is known.
This central ventilator is capable of ventilating indoors in buildings with multiple floors above and below, forming piping that communicates between indoors and outdoors and the forced air flow inside this piping The ventilation unit main body and piping are formed independently for each floor of the building.
The ventilation unit main body is provided on the back side of the ceiling of each floor, and there are a plurality of air outlets on the ceiling surface for blowing the air supplied by the ventilation unit main body indoors, and the ventilation unit main body sucks indoor air into the ventilation unit One mouth is provided on the entire floor.
JP-A-10-110992

  By the way, the ventilation unit main body of the central ventilation apparatus as described above is usually installed behind the ceiling. On the other hand, in recent years, in order to secure a larger storage space, there has been provided a house in which a storage room is provided between an upper floor and a lower floor using a ceiling pocket portion on the back of the ceiling. In the case of such a house, the space behind the ceiling where the ventilation unit body is installed is narrowed by the amount of storage room between the upper floor and the lower floor, and even if the ventilation unit body can be installed somehow on the ceiling, In some cases, the piping for indoor supply piping that extends from the ventilation unit main body and supplies fresh fresh air to the indoor space becomes narrow, and piping becomes very difficult.

  The present invention has been made in view of the above circumstances, and even when a storage room is provided between the upper floor and the lower floor, the installation structure of the central ventilator that allows easy installation of the ventilation unit body and easy piping. It is an issue to provide.

In order to solve the above-mentioned problem, the invention according to claim 1 is, for example, as shown in FIGS. 1 to 3, a ceiling height between an upper floor (second floor) and a lower floor (first floor) of a building. Is a central ventilator installation structure in which a storage chamber 3 of 0.9 m to 1.6 m is provided, and a central ventilator 10 capable of ventilating the interior is installed in the storage chamber 3.
A ventilation unit main body 11 of the central ventilation device 10 is installed in the storage chamber 3,
Indoor supply pipes 13 and 14 that are connected to the ventilation unit main body 11 and supply fresh fresh air indoors are arranged on both the upper side and the lower side of the storage chamber 3, and then the storage chamber 3 sideways ,
The indoor supply pipe 13 disposed on the upper side of the storage chamber 3 is bent upward from the ventilation unit body 11 and is disposed on the upper side of the storage chamber 3.
The indoor supply pipe 14 disposed on the lower side of the storage chamber 3 is bent downward from the ventilation unit main body 11 and is disposed on the lower side of the storage chamber 3 .

Thus, since the ventilation unit main body 11 is installed in the storage chamber 3, the ventilation unit main body 11 can be easily installed regardless of the space behind the ceiling. Of the indoor supply pipes 13 and 14 connected to the ventilation unit main body 11, the indoor supply pipe 13 disposed on the upper side of the storage chamber 3 is bent upward from the ventilation unit main body 11 and stored. The indoor supply pipe 14 disposed on the upper side of the chamber 3 and disposed on the lower side of the storage chamber 3 is bent downward from the ventilation unit body 11 and is disposed on the lower side of the storage chamber 3 . By using the height of the storage chamber 3, the indoor supply pipes 13 and 14 can be efficiently piped and extended to the side, so that the indoor supply pipes 13 and 14 can be easily arranged.

Here, among the indoor supply pipes 13 and 14 extending to the side of the storage chamber 3, the indoor supply pipe 13 on the upper side is formed at an appropriate location on the ceiling surface by drawing around the ceiling of the lower floor. Connect to the outlet. Moreover, the indoor supply pipe 14 on the lower side may be connected to the outlet provided in the side portion of the storage chamber 3, or the lower side of the floor at the same level as the floor of the storage chamber 3, that is, the lower floor. The back of the ceiling may be routed and connected to an outlet formed at an appropriate location on the ceiling surface.
The ceiling height of the storage chamber 3 is preferably set to 0.9 m to 1.6 m, but more preferably set to 1.0 m to 1.4 m.

Invention of Claim 2 is the installation structure of the central ventilation apparatus of Claim 1,
The side of the storage room 3 is an upper space of the room 5 on the lower floor (first floor),
The indoor supply pipe 13 arranged on the upper side of the storage room 3 is routed from the back side of the ceiling 19 provided in the upper space of the room 5 on the lower floor, It is characterized by opening in the upper space of the living room 5.

  Thus, when the side of the storage room 3 provided between the upper floor and the lower floor is the upper space of the lower floor living room 5, that is, the space with a high ceiling height, the upper part of the storage room 3 The indoor supply pipe 13 arranged on the side is routed through the back side of the ceiling 19 provided in the upper space of the lower floor living room 5 and then opens from the ceiling 19 to the upper space of the lower floor living room 5. Therefore, ventilation of the living room 5 with a high ceiling height can be performed easily and reliably.

The invention according to claim 3 is, for example, as shown in FIGS. 4 and 5, in the installation structure of the central ventilation device according to claim 1 or 2,
The ventilation unit body 11 is directly provided with an inlet 11a,
An opening 22 is formed in the vicinity of the suction port 11a in the wall forming the storage chamber 3.

  Thus, since the opening part 22 is formed in the wall which forms the storage chamber 3, the air which refluxed the lower floor flows in from this opening part 22, and is suck | inhaled from the inlet 11a of the ventilation unit main body 11, The air is exhausted to the outside through an external exhaust pipe 15 connected to the ventilation unit main body 11. In other words, the air recirculated through the lower floor can be concentrated and exhausted to the outside. Further, since the opening 22 is formed in the vicinity of the suction port 11a, the air that has entered from the opening 22 can be quickly sucked into the suction port 11a.

Invention of Claim 4 is the installation structure of the central ventilation apparatus in any one of Claims 1-3,
In the storage chamber 3, another device that generates heat is provided in the vicinity of the ventilation unit main body.

Here, examples of other devices that generate heat include home servers in the home, solar cell inverters, batteries, and the like, but are not limited thereto.
In the case where another device that generates heat is provided in the storage chamber 3, it is desirable to partition the inside of the storage chamber 3 with a partition wall 6 or the like and provide a chamber (chamber compartment 7) for storing the ventilation unit main body 11.

  Thus, since the other equipment which generates heat is provided in the vicinity of the ventilation unit main body 11 in the storage chamber 3, the air heated by these heat generating equipment does not flow into other living rooms, etc. The air is quickly sucked from the suction port 11a of the ventilation unit main body 11 and discharged to the outside.

As for invention of Claim 5, as shown in FIG. 5, for example, in the installation structure of the central ventilation apparatus in any one of Claims 1-4,
The ventilation unit main body 11 or the storage chamber 3 is provided with a temperature sensor 23 for detecting the temperature of air sucked from the suction port 11a of the ventilation unit main body 11,
The ventilation unit main body 11 is characterized in that the ventilation air volume is controlled based on the temperature detected by the temperature sensor 23.

  Thus, the ventilation unit main body 11 can secure an appropriate ventilation air volume according to the season because the ventilation air volume is controlled based on the temperature detected by the temperature sensor 23.

According to the first aspect of the present invention, the indoor supply pipe that is connected to the ventilation unit main body and supplies fresh outside air indoors is provided on the upper side of the storage room provided between the first floor and the second floor. Since it is arranged on both the lower side and the side of the storage room, the indoor supply pipe can be efficiently piped using the height of the storage room. The piping of the service pipe becomes easy.
Further, since the ventilation unit main body is installed in the storage room, the ventilation unit main body can be easily installed regardless of the space behind the ceiling.

  According to the second aspect of the present invention, the side of the storage room is the upper space of the lower floor living room, and the indoor supply pipe arranged on the upper side of the storage room is the upper part of the lower floor living room. Since the back side of the ceiling provided in the space is routed and opens from the ceiling to the upper space of the lower floor room, the room with a high ceiling can be ventilated easily and reliably.

  According to the third aspect of the present invention, since the opening portion is formed in the vicinity of the suction port of the ventilation unit body in the wall forming the storage chamber, the air that has circulated through the lower floor is supplied from the opening portion to the storage chamber. Can be concentrated and exhausted to the outside. Air entering through the opening can be quickly sucked into the inlet. Furthermore, since it can light from the opening to the storage room, it is useful for maintenance of the ventilation unit body.

  According to the fourth aspect of the present invention, since the other device that generates heat is provided in the vicinity of the ventilation unit main body in the storage chamber, the air heated by the device that generates heat is caused to flow into another room or the like. Without being exhausted, the air can be quickly sucked from the suction port of the ventilation unit body and discharged outside.

  According to the fifth aspect of the present invention, since the ventilation unit body controls the ventilation air volume based on the temperature detected by the temperature sensor, an appropriate ventilation air volume can be secured according to the season.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a cross-sectional view schematically showing a house provided with a central ventilation device installation structure according to the present invention.
The house shown in FIG. 1 is a two-story house, and a storage room 3 is provided between the first floor and the second floor. The storage room 3 is formed by using a ceiling pocket on the first floor, the ceiling height is set to 1.0 m to 1.4 m, and is high enough for an adult to bend and walk. An entrance / exit 3 a for entering and exiting the storage chamber 3 is formed on the wall forming the storage chamber 3. On the other hand, a staircase 4 is provided between the first floor and the second floor, and an entrance 3a to the storage chamber 3 faces a landing 4a in the middle of the staircase 4. Therefore, it is possible to enter and exit from the landing 4a to the storage room 3 through the entrance 3a. Further, the side of the storage room 3 is an upper space of the first floor living room 5, and the ceiling height of the living room 5 is thereby increased. The storage room 3 is provided above the room on the first floor where the ceiling height may be low, such as a Japanese-style room, a kitchen, a washroom, and a bathroom.

As shown in FIGS. 2 and 3, the storage chamber 3 is partitioned by a partition wall 6, whereby a chamber partition 7 and a storage partition 8 for storing articles are provided in the storage chamber 3. ing.
The chamber section 7 is provided on the side of the entrance / exit 3a, and an opening 7a is formed in the partition wall 6 that forms the chamber section 7. As shown in FIG. 4, a ceiling 9 is provided in the upper part of the chamber section 7, and a ventilation unit body 11 of the central ventilation device 10 is installed on the back side of the ceiling 9.

The central ventilator 10 ventilates the first floor, and includes a ventilation unit main body 11 and pipes connected to the ventilation unit main body 11. The ventilation unit body 11 is connected to an external suction pipe 12, indoor supply pipes 13, 13, 14, 14 and an external exhaust pipe 15.
The external suction pipe 12 communicates with the ventilation unit main body 11 from the outside of the building in order to take in air outside the building indoors, and its tip portion penetrates the outer wall of the building and opens to the outside of the building. ing.
The indoor supply pipes 13 and 14 supply air sucked from the external suction pipe 12 to the indoors of the same floor of the building through the ventilation unit main body 11.
The external exhaust pipe 15 communicates from the ventilation unit main body 11 to the outside in order to exhaust the air sucked from the suction port 11a provided in the ventilation unit main body 11 to the outside, and the tip thereof is the outer wall of the building. It opens to the outside of the building.

  The ventilation unit main body 11 includes an electric motor and a ventilation fan having a plurality of blades rotated by the electric motor, and uses the forced air flow generated by the blades of the ventilation fan, so that the air inside the pipe Can be forcibly moved. That is, the air in the external suction pipe 15 can be forcibly moved toward the indoor supply pipes 13 and 14 or the air from the suction port 11a toward the external exhaust pipe 15. Specifically, although not shown in particular, it includes a turbo fan that pumps gas by utilizing the centrifugal force of the gas as the impeller rotates, and a casing that forms a flow passage from the turbo fan. Is.

  The ventilation unit main body 11 is not particularly shown, but is sucked from the intake port 11a located on the indoor side and exhausted to the outside from the external exhaust pipe 15, and is sucked from the external suction pipe 12 and supplied indoors. There is provided a heat exchange section for exchanging heat with the air supplied indoors from the pipes 13 and 14. This heat exchanging unit can perform only the movement of heat without directly mixing the internal air with the air discharged outdoors and the air supplied indoors. Specifically, a large number of straw-like ultrathin cylindrical tubes made of metal, resin or the like having a high thermal conductivity are arranged. And either one of the air discharged | emitted outdoors or the air supplied indoors is made to pass through the inside of a straw-shaped cylindrical tube, and the other is made to pass the circumference | surroundings of the cylindrical tube. Thereby, when there is a temperature difference between the air discharged outdoors and the air supplied indoors, the heat having the higher temperature is transmitted to the lower temperature through the thin cylindrical tube. .

As shown in FIGS. 1 to 4, the indoor supply pipes 13 and 13 are bent upward from the ventilation unit main body 11, arranged on the upper side of the storage chamber 3, and further stored from the floor 18 on the second floor. It extends to the side of the chamber 3.
That is, the indoor supply pipes 13 and 13 are extended from the ceiling behind the upper part of the storage room 3 into the floor panel constituting the floor 18 of the second floor, and further penetrated through the flooring of the floor panel to enter the storage room. 3 is extended to the side. The side of the storage room 3 is an upper space of the first-floor living room 5, and a ceiling 19 is provided below this floor on the second floor. The indoor supply pipe 13 extending to the back of the ceiling 19 is routed behind the ceiling 19 and opens from the ceiling 19 to the upper space of the living room 5 on the lower floor. That is, two air outlets are provided at predetermined positions on the ceiling 19, and the indoor supply pipes 13 and 13 are connected to these air outlets.
Each of the indoor supply pipes 13, 13 routed behind the ceiling 19 branches into a plurality on the way, and the branched indoor supply pipes 13 are provided at the outlets provided on the ceiling 19. You may connect to each.

The indoor supply pipes 14, 14 are bent downward from the ventilation unit main body 11, arranged on the lower side of the storage chamber 3, and further extend from the floor 20 of the storage chamber 3 to the side of the storage chamber 3. Has been issued.
That is, the indoor supply pipes 14, 14 extend through the floor panel surface material constituting the floor 20 of the storage chamber 3 and extend into the floor panel, and further pass through the floor panel covering material to store the storage chamber. 3 is extended to the side. As described above, the side of the storage room 3 is the upper space below the ceiling 19 of the first-floor room 5, so that two blow-out openings are formed in the floor panel material. Indoor supply pipes 14 and 14 are connected to the outlets, respectively. The indoor supply pipe 14 is branched in the floor panel and provided on the lower surface of the floor panel, and is also connected to the air outlet.
If there is a room with a low ceiling height other than the room provided below the storage room 3 on the first floor of the building, the indoor supply pipe 14 is routed around the back of the ceiling of this room. In addition, the room opens from the ceiling of the room.

Thus, in this Embodiment, since the ventilation unit main body 11 is installed in the storage chamber 3, the ventilation unit main body 11 can be installed easily irrespective of the space behind the ceiling.
And since the indoor supply pipes 13 and 14 connected to the ventilation unit main body 11 are arranged on both the upper side and the lower side of the storage chamber 3, the height of the storage chamber 3 is used for indoors. The supply pipes 13 and 14 can be efficiently piped and extended to the side, so that the indoor supply pipes 13 and 14 can be easily piped.
Also, the indoor supply pipes 13, 13 arranged on the upper side of the storage room 3 are routed behind the ceiling 19 provided in the upper space of the first-floor room 5, and then the ceiling 19 is connected to the ceiling 19. Since it opens to the upper space of the living room 5 on the floor and the indoor supply pipes 13, 13 arranged on the lower side of the storage room 3 open from the floor of the storage room 3 to the upper space of the living room 5. And the ventilation of the living room 5 with a high ceiling height can be performed easily and reliably.

Further, the ventilation unit main body 11 is directly provided with the suction port 11a as described above, and sucks air that has recirculated through the first floor indoors from the suction port 11a. On the other hand, an opening 22 is formed in the wall forming the storage chamber 3 next to the entrance / exit 3a. The opening 22 is located in the vicinity of the suction port 11 a of the ventilation unit main body 11, and most of the air that has circulated through the interior of the first floor flows into the chamber section 7 in the storage chamber 3 from the opening 22. Then, the air is sucked from the suction port 11a, and the sucked air is exhausted to the outside through the external exhaust pipe 15.
Thus, since the opening part 22 is formed in the wall which forms the storage chamber 3, the air which recirculate | refluxed the 1st floor can be concentrated on the chamber division 7 through the opening part 22, and can be exhausted outside. Further, since the opening 22 is formed in the vicinity of the suction port 11a, the air that has entered from the opening 22 can be quickly sucked into the suction port 11a. Furthermore, since it can light to the chamber section 7 of the storage chamber 3 from the opening part 22, it is useful at the time of the maintenance of the ventilation unit main body 11, etc.

In addition, since the opening 7a is formed in the partition wall 6 that forms the chamber section 7, air that does not flow in from the opening 22 and flows in from the side entrance 3a passes through the opening 7a. 7 and is sucked from the suction port 11a of the ventilation unit main body 11, and the sucked air can be exhausted to the outside through the external exhaust pipe 15.
Furthermore, although not shown, the chamber section 7 is provided with other equipment that generates heat in the vicinity of the ventilation unit main body 11. Other devices that generate heat include home servers in the home, inverters and batteries of solar cells, and the like.
In this way, since the chamber section 7 of the storage chamber 3 is provided with other devices that generate heat, the air heated by these devices that generate heat does not flow into other living rooms or the like, but the ventilation unit main body 11 can be quickly sucked from the suction port 11a and discharged to the outside. In winter, air heated by a device that generates heat is heat-exchanged with external fresh air by a heat exchanger provided in the ventilation unit main body 11, so that the external air is heated by the heated air. Fresh air can be warmed more efficiently, that is, exhaust heat from a device that generates heat can be used effectively.

Further, as shown in FIG. 5, the ventilation unit main body 11 is configured such that the air volume is controlled based on the temperature detected by the temperature sensor 23.
That is, first, as described above, a ventilation fan is built in the ventilation unit main body 11, and this ventilation fan has two operation modes of "strong operation" and "weak operation".
The ventilation unit main body 11 is provided with an external output terminal 24, and auxiliary blowers 25, 25 are connected to the external output terminal 24. Auxiliary blowers 25 and 25 are installed in places where there is not enough air flow of the outside fresh air blown indoors through the indoor supply pipes 13 and 14. It spreads efficiently and is designed to ventilate with a predetermined ventilation volume.

The temperature sensor 23 is provided in the suction port 11a of the ventilation unit main body 11, and detects the temperature of the air sucked from the suction port 11a as a room temperature by circulating in the room.
The temperature sensor 23 is connected to a control unit built in the ventilation unit body 11. In this control unit, the air volume is controlled as follows.
That is, first, a predetermined set temperature Th is set in the control unit. If the room temperature detected by the temperature sensor 23 is Tra, when Tra ≧ Th, the ventilation fan of the ventilation unit body 11 is controlled to be “strongly operated” (electric motor). On the other hand, when Tra <Th, the ventilation fan of the ventilation unit main body 11 is controlled ("electric motor") so as to be "weak operation".

In addition, when the air volume by the ventilation fan of the ventilation unit main body 11 can be controlled steplessly, the air volume V is V = a × (Tra−Th) + VL when the minimum air volume is VL and the proportional coefficient a. Proportional control can also be performed.
This eliminates unnecessary ventilation (over-ventilation), and effects such as a reduction in ventilation power, a reduction in air-conditioning burden, and a reduction in noise (operation sound) can be obtained.

Further, if the ventilation air flow is insufficient even after performing “strong operation”, the auxiliary fans 25 and 25 are controlled.
That is, on / off control of the auxiliary fans 25 and 25 is performed based on the room temperature Tra detected by the temperature sensor 23.
For example, a predetermined set temperature TH is set in the control unit. However, TH> Th. When the room temperature Tra detected by the temperature sensor 23 is higher than the set temperature TH, that is, when Tra> TH, the auxiliary blowers 25 and 25 are set to “on”. In this case, since Tra> Th, the ventilation fan of the ventilation unit body 11 is also operating.
When Th ≦ Tra <TH, only the ventilation fan of the ventilation unit body 11 operates as “strong operation”.
When Tra <Th, only the ventilation fan of the ventilation unit body 11 operates as “weak operation”.

In addition to the above control, the following control is also available.
That is, first, the winter ventilation standard air volume is Qw, the summer ventilation standard air volume is Qs, the ventilation volume by the ventilation fan of the ventilation unit body 11 is QH in the case of “strong operation”, and QL in the case of “weak operation”. However, Qs> Qw is a precondition.
When Qs <QH, that is, when the amount of ventilation by “strong operation” is larger than the summer ventilation reference air volume, ventilation is performed only by the ventilation fan of the ventilation unit body 11.
On the other hand, in the case of Qs> QH, that is, when the ventilation amount by “strong driving” is less than the summer ventilation reference air volume, the auxiliary blowers 25 and 25 are additionally operated to ventilate.

  In this way, the ventilation fan of the ventilation unit body 11 and the auxiliary blowers 25 and 25 are controlled based on the temperature detected by the temperature sensor 23, so the ventilation air volume is controlled according to the season. it can.

  The ventilation unit main body 11 as described above is for ventilating the first floor of the building, but the ventilation unit main body for ventilating the second floor is omitted from illustration, although it is not illustrated. The various pipes connected to the ventilation unit main body are installed behind the ceiling of the second floor, fresh fresh air is blown out from the ceiling of the second floor, and the air recirculated through the second floor is the ventilation unit main body The air is sucked from the suction port provided in the air and exhausted to the outside.

It is sectional drawing which shows the outline of the house provided with the installation structure of the central ventilation apparatus which concerns on this invention. 1 is a perspective view of a storage room, showing an installation structure of a central ventilation device according to the present invention. It is a perspective view of the storage chamber seen from the other direction. It is sectional drawing of the principal part of a storage chamber. It is a bottom view which shows a ventilation unit main body similarly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Storage room 5 Living room 6 Partition wall 10 Central ventilation apparatus 11 Ventilation unit main body 11a Inlet 12 External suction piping 13, 14 Indoor supply piping 15 External exhaust piping 19 Ceiling 22 Opening 23 Temperature sensor

Claims (5)

A storage room with a ceiling height of 0.9m to 1.6m is installed between the upper and lower floors of the building, and a central ventilation system is installed in this storage room. Structure,
A ventilation unit body of the central ventilation device is installed in the storage room,
Indoor supply pipes connected to the ventilation unit main body and supplying fresh fresh air to the indoors are arranged on both the upper side and the lower side of the storage room, and extend to the side of the storage room. Has been issued ,
The indoor supply pipe disposed on the upper side of the storage room is bent upward from the ventilation unit main body, and is disposed on the upper side of the storage room .
The installation structure of the central ventilation device, wherein the indoor supply pipe arranged on the lower side of the storage room is bent downward from the ventilation unit body and arranged on the lower side of the storage room . In the installation structure of the central ventilation apparatus of Claim 1,
The side of the storage room is the upper space of the lower-floor room,
The indoor supply pipe arranged on the upper side of the storage room is routed from the ceiling to the upper space of the lower-floor room from the ceiling provided in the upper space of the lower-floor room. Central ventilator installation structure characterized by opening. In the installation structure of the central ventilation apparatus of Claim 1 or 2,
The ventilation unit body is directly provided with a suction port,
An installation structure of a central ventilation device, wherein an opening is formed in the vicinity of the suction port in a wall forming the storage chamber. In the installation structure of the central ventilation apparatus in any one of Claims 1-3,
An installation structure for a central ventilator, wherein the storage chamber is provided with other equipment that generates heat in the vicinity of the ventilation unit main body. In the installation structure of the central ventilation apparatus in any one of Claims 1-4,
The ventilation unit main body or the storage chamber is provided with a temperature sensor for detecting the temperature of air sucked from the suction port of the ventilation unit main body,
An installation structure of a central ventilation device, wherein the ventilation unit main body controls a ventilation air volume based on a temperature detected by the temperature sensor.

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