JP5909344B2 - Branch chamber for air conditioner - Google Patents

Description

  Embodiments of the present invention relate to a branch chamber connected between an air conditioner and air outlets of a plurality of air-conditioned rooms via a duct.

  When air conditioning a plurality of rooms, a main duct is connected to the air conditioner and extends to the back of the ceiling, for example. A branch chamber is installed behind the ceiling, and the main duct is connected. Since a branch duct is connected from the branch chamber to the outlet provided in each air-conditioned room, the branch chamber includes one main duct connection port and a plurality of branch duct connection ports.

  In Patent Document 1, a branch chamber is conventionally box-shaped, and in consideration of the situation where an increase in size is unavoidable, the connection port (discharge port) of the branch duct is vertically moved in a side view in order to obtain a smaller size. A configuration in which a plurality of stages are arranged is disclosed. Further, a configuration is also disclosed in which the connection ports are arranged in a staggered manner or radially, and the chamber body is formed in a cylindrical shape.

  Patent Document 2 discloses a configuration in which a large-diameter cleaning hole is provided in a lower chamber or upper plate of a ventilation system that performs ventilation in multiple rooms at the same time, and this cleaning hole can be opened and closed with a lid. Is done. Further, a configuration is disclosed in which a guide plate and a pressing edge wider than the guide plate are overlapped on the three peripheral edges of the cleaning hole, a guide groove is formed inside the pressing edge, and the lid is inserted and removed.

JP 2006-29613 A Utility Model Registration No. 3132963

  In patent document 1, since the heat exchange air produced | generated with the air conditioning apparatus distribute | circulates to a branch chamber, internal pressure (positive pressure) is applied. For this reason, the chamber body has a sealed structure using, for example, a metal material, and is manufactured to a certain extent.

  However, the length of the branch duct that communicates from the branch chamber to the outlet of each room is different from each other. For this reason, when the branch duct connection port has a uniform diameter, more heat exchange air than necessary is blown out to a room near the branch chamber, and heat exchange air that does not satisfy the necessary amount blows out to a room far from the branch chamber. As a result, a difference occurs in the blowing air volume.

  Normally, an air volume adjusting plate is attached to the branch duct connection port in the chamber body, and this is adjusted by sliding during installation and periodic maintenance, and the branch duct connection port is set so that the air flow rate in each room is uniform. Adjust the aperture. However, since the chamber body of Patent Document 1 has a sealed structure, it cannot be adjusted by attaching an air volume adjusting plate inside.

  If the branch chamber of patent document 2 slides a lid | cover and opens a cleaning hole, it can adjust an internal air volume adjustment board. However, if the pressure in the branch chamber is negative, anyway, if it is used under the condition that the pressure in the branch chamber is positive, even if there is a guide plate, a gap is created between the cleaning hole and the lid, and heat exchange air Leaks out.

  Under such circumstances, it is possible to adjust the air volume from the inside of the chamber body to the branch duct connection port, and ensure that there is no leakage of heat exchange air from the gap between the hole and the lid when internal pressure is applied. A branch chamber for an air conditioner that closes has been desired.

The branch chamber for an air conditioner according to the present embodiment communicates a main duct extending from the air conditioner and a plurality of branch ducts extending from the outlets of the plurality of chambers, and is generated by the air conditioner. A branch chamber for an air conditioner that guides heat exchange air to outlets of a plurality of chambers via a main duct and a branch duct, the first wall portion and the second wall portion facing each other at a predetermined interval And a plurality of branches for connecting one main duct connection port for connecting the main duct to the side wall and a plurality of branch ducts. A chamber body provided with a duct connection port, a hole provided in one of the first wall and the second wall of the chamber body, and a plug and a chamber fitted in the hole so as to be opened and closed Book First wall or the second wall that faces the hole portion constituting a lid, said chamber body having a contact with the contact portion, the contact and separation freely closely abut along the periphery of the hole in the interior of the The guide part provided on the inner surface of the other side of the part and the plug part of the cover provided on the contact part of the lid are detachably engaged with the guide part in a state where the hole of the chamber body is opened. And a hook portion that temporarily holds the body on the wall portion provided with the guide portion .

The perspective view of a house interior part provided with the air conditioning system connected to the air conditioning apparatus based on this embodiment. The front view of the main duct connected to a branch chamber and the branch chamber at the time of hanging on the back of a hut based on the embodiment. The front view of the main duct connected to a branch chamber and a branch chamber at the time of mounting on the ceiling base material based on the embodiment. The bottom view of the branch chamber based on a 1st Example. The longitudinal cross-sectional view of the branch chamber based on the Example. The perspective view which notched only a part of branch chamber based on a 2nd Example. The longitudinal cross-sectional view of the branch chamber based on a 3rd Example. The longitudinal cross-sectional view of the branch chamber based on a 4th Example.

Hereinafter, the present embodiment will be described with reference to the drawings.
FIG. 1 is an explanatory diagram of, for example, an air conditioner K provided in a general house and an air conditioning system S connected to the air conditioner K. The ordinary house is, for example, a two-story house R, and the inside is shown through for easy understanding.

  The air conditioner K includes an indoor unit 1 disposed in the house R and an outdoor unit 2 disposed outside the house R. Each of the indoor unit 1 and the outdoor unit 2 accommodates a refrigerating cycle constituent device (not shown) inside and is connected to each other by a refrigerant pipe and a cable.

  The blower part 3 is provided in the upper end part of the indoor unit 1 in the air conditioner K, and heat exchange air is blown out from here. A suction part 4 is provided in the lower front part of the indoor unit 1, from which indoor air is sucked. An outside air intake duct 5 and an exhaust duct 6 are connected to the back of the indoor unit 1 and face the outside of the house R, respectively.

  Two main ducts 7a and 7b are connected to the blow-out portion 3 in the indoor unit 1, and these main ducts 7a and 7b extend to the ceiling of the second floor through a gap between the inner wall and the outer wall of the house R. It is. Each of the main ducts 7a and 7b is bent at a right angle in the back of the hut formed between the roof Ra and the ceiling, and extends in parallel with the ceiling base material.

  The mutual main ducts 7a and 7b are connected to branch chambers A1 and A2 provided at predetermined positions. A plurality of branch ducts 8a and 8b are connected to the branch chambers A1 and A2, respectively. A plurality of branch ducts 8a connected to one branch chamber A1 are extended downward from the ceiling to each room on the first floor via an inner wall and an outer wall.

  On the first floor of the house R, for example, an entrance, a dining kitchen, a living room, a guest room, a corridor, a washroom, a dressing room, and a toilet are arranged. Each chamber is provided with an air outlet a covered with an air outlet grille, and a branch duct 8a extending from one branch chamber A1 is connected to each air outlet a.

  A plurality of branch ducts 8b connected to the other branch chamber A2 are provided in parallel with the ceiling base material. On the second floor, for example, a bedroom, a plurality of rooms such as a children's room, and a hallway are arranged. Each chamber is provided with an air outlet b covered with an air outlet grille, and a branch duct 8b extending from the other branch chamber A2 is connected to each air outlet b.

  A remote controller 9 is attached to the living room, and operation / stop switching, operation switching such as cooling, heating, and air blowing, and adjustment of the set temperature can be performed. Furthermore, it is possible to switch between a fresh outdoor air intake operation in which fresh external air is taken in from the external air intake duct 5 and led to the blow-out unit 3 and a ventilation operation in which room air sucked in from the suction unit 4 is discharged from the exhaust duct 6 to the outside of the house.

2 and 3 are diagrams for explaining the arrangement of the branch chamber A (the branch chambers A1 and A2 shown in FIG. 1).
That is, FIG. 2 shows a state in which the branch chamber A is suspended from the cabin back Rb via the suspension bolts 10 and the suspension fittings 11. In this case, the branch chamber A has a gap with the ceiling base material T.

  The branch chamber A is provided with a main duct connection port 12 to which one main duct 7 (main ducts 7a and 7b shown in FIG. 1) is connected, and a branch duct connection port to which a plurality of branch ducts (not shown) are connected. 13 is provided. It is desirable that the main duct 7 and the branch duct are appropriately suspended through suspension bolts and suspension hardware.

Since not only the branch chamber A but also the main duct 7 and the branch duct have a gap with the ceiling base material T, the vibration noise of the heat exchange air that circulates through the ceiling base material T causes the air-conditioned room M to pass through the ceiling base material T. It can be prevented from being transmitted in.
In the ceiling base material T, a ceiling inspection port 15 is provided at a position aligned with the center line of the branch chamber A and can be opened and closed by a ceiling inspection lid 16. That is, it is selected when an inspection lid (lid body) to be described later is provided on the lower surface of the branch chamber A.

  FIG. 3 shows a state in which the branch chamber A is placed on the ceiling base material T. In this case, the plywood 17 is placed on the ceiling base material T, and the branch chamber A is placed on the plywood 17 via the spacer 18. The suspension fitting 11 of the branch chamber A is fixed to a set bolt 19 protruding from the plywood 17. On the other hand, at least the main duct 7 is placed on the beam t.

Thus, it is possible to prevent the vibration noise of the heat exchange air flowing through the main duct 7 and the branch chamber A from being transmitted from the ceiling base material T to the air-conditioned room M.
This is selected when an inspection lid (lid), which will be described later, is provided on the upper surface of the branch chamber A under the condition that there is sufficient space (margin) above the ceiling base material T.

4 and 5 are a bottom view and a longitudinal sectional view of the branch chamber A in the first embodiment, showing a specific configuration of the branch chamber A. FIG.
The branch chamber A includes a chamber body 20 and an inspection lid 30. Both are made of a synthetic resin material, for example, a polystyrene foam material, are lightweight and have a certain thickness, so that they are not inferior in strength.

  The chamber body 20 includes two wall portions 21 including a first wall portion 21a and a second wall portion 21b facing each other at a predetermined interval, and the first and second wall portions 21a, 21b and the side wall part 22 which connects each other integrally. As shown in FIG. 4, the chamber body 20 is formed in a deformed heptagon shape having only one side large and the other six sides small.

  In the side wall part 22, the main duct connection port 12 is provided on one large side part, and the branch duct connection ports 13 are provided on a plurality of small side parts. The main duct connection port 12 and the branch duct connection port 13 are also made of a synthetic resin material, for example, an ABS resin material. The base end portions of the connection ports 12 and 13 are inserted (embedded) in the side wall portion 22, and the distal end portions protrude outward from the chamber body 20.

  Actually, the chamber body 20 is manufactured from an upper half portion and a lower half portion with the vertical center line of the side wall portion 22 in FIG. 5 as a boundary. The duct connection ports 12 and 13 are inserted into either the upper half portion or the lower half portion. And the upper and lower half part is integrally connected by adhesion | attachment in the state which accommodated the lid | cover 30 for inspection mentioned later inside.

  Note that every other branch duct connection port 13 has a different height position. This is because, when connecting a branch duct to the branch duct connection port 13, not only is it easy to work by changing the height of every other branch duct connection port 13 but also the size of the chamber body 20 in the radial direction. Can be reduced as much as possible.

  In FIG. 5, the base end portion of the hanging metal fitting 11 is inserted into the first wall portion 21 a on the upper side, and the distal end portion projects from the chamber body 20 in parallel with the wall portion 21. As shown in FIG. 4, the position of the hanging fitting 11 is a line connecting the main duct connecting port 12 and the hanging fitting 11 with a corner portion facing the main duct connecting port 12 through the center point of the chamber body 20. Is the corner position in the direction perpendicular to the center point by 90 degrees.

  A hole 24 is provided in the second wall 21b opposed to the first wall 21a provided with the hanging metal fitting 11, that is, the second wall 21b on the lower side in FIG. A plug portion 31 provided on the inspection lid 30 is fitted into the portion 24. Furthermore, an annular recess 25 is provided from the inside of the chamber body 20 along the periphery of the hole 24 provided in the second wall portion 21b.

  On the other hand, the inspection lid 30 includes a plug portion 31 that can be freely opened and closed in the hole portion 24, and a contact portion 32 that is fitted in the recess 25 of the chamber body 20 from the inside of the chamber body 20. In addition, a recessed portion 33 formed between the plug portion 31 and the contact portion 32 of the inspection lid 30 is placed on the jetty portion 26 formed between the hole portion 24 and the recessed portion 25 of the chamber body 20.

Thus, since the inspection lid 30 closes the hole 24 of the chamber body 20, the inspection lid 30 must be moved into the chamber body 20 in order to open the inspection lid 30 from the hole 24. .
As described above, the chamber body 20 is manufactured in a state of being divided into two parts, and these are combined and bonded and fixed. Therefore, if the inspection lid 30 is accommodated in one divided body before the bonding process, the above-described chamber body 20 is bonded. A configuration is obtained.

The inspection lid 30 is provided with a cross-shaped hand-held portion 35 on the outer surface side so that an operator can easily hold and work with the hand.
Further, in the chamber body 20, mounting screws 27 are attached at three locations at equal intervals around the hole 24 of the second wall portion 21 b to which the inspection lid 30 is attached. The tip ends of these mounting screws 27 are screwed into nut portions 36 inserted into the contact portions 32 of the inspection lid 30.

  As shown in FIG. 4, each of the second wall portion 21b and the inspection lid 30 is provided with an alignment mark 37, and by properly aligning the positions thereof, the tip end portion of the mounting screw 27 becomes the nut portion 36. It is possible to screw in facing. That is, it can be confirmed from the outside that the inspection lid 30 is in a state where the hole 24 is properly closed.

As shown in FIG. 5, an air volume adjusting plate 40 is provided above or below the base end of the branch duct connection port 13 in the chamber body 20. The air volume adjusting plates 40 are provided with long holes along the vertical direction, and set screws are inserted into the long holes.
When the set screw is loosened and the air volume adjusting plate 40 is moved along the long hole, the opening amount of the branch duct connection port 13 changes. Therefore, it is possible to adjust the air volume of the heat exchange air that is guided from the branch duct connection port 13 through the branch duct and blown out from the blowout port.

  When the branch chamber A is constructed as described above and is suspended and fixed to the shed Rb via the suspension bolt 10 and the suspension fitting 11 as shown in FIG. 2, the ceiling inspection port 15 is provided in the ceiling base material T. The inspection lid 30 is directed downward from where it is provided. As shown in FIG. 3, when the branch chamber A is placed on the ceiling base material T, the inspection lid 30 is directed upward.

  In any case, during the trial operation immediately after the air conditioning apparatus K and the air conditioning system S are installed, the air volume adjustment plate 40 inside the chamber body 20 is adjusted with the inspection lid 30 removed and the inside of the chamber body 20 opened. Or at the time of the inspection performed for every predetermined period, adjustment work is performed similarly.

  As shown in FIG. 1 again, in a state where the air conditioner K is driven to guide the heat exchange air, the heat exchange air led from the main ducts 7a and 7b is filled in the branch chambers A1 and A2, and further branched. The current is diverted to the ducts 8a and 8b. Therefore, an internal pressure (positive pressure) is applied to the inside of the branch chambers A1 and A2.

As shown in FIGS. 4 and 5, in the branch chamber A, the plug portion 31 of the inspection lid 30 closes the hole portion 24 of the chamber body 20, and the contact portion 32 of the inspection lid 30 is the hole portion 24. It mounts from the inside of the chamber main body 20 in the recessed part 25 formed in a periphery.
The internal pressure applied to the chamber main body 20 acts to press the contact portion 32 of the inspection lid 30 closely against the periphery of the hole 24, so that there is no gap and therefore no heat exchange air leaks.

FIG. 6 is a perspective view in which the branch chamber A of the second embodiment is partially cut away.
That is, in the first embodiment, when adjusting the air volume adjusting plate 40 provided therein, for example, the ceiling inspection port 15 shown in FIG. 2 is opened. Then, the mounting screw 27 provided on the lower surface of the chamber body 20 of the branch chamber A is removed.

  The operator pushes up the inspection lid 30 with one hand, moves into the chamber body 20, and opens the hole 24. Further, the inspection lid 30 is pressed against the first wall portion 21a on the upper side of the chamber body 20, and necessary work such as adjusting the internal air volume adjusting plate 40 with the other hand is performed while maintaining the position. Since it is a work using both hands, it takes time.

Here, inside the first wall portion 21a constituting the chamber body 20, a guide protrusion (guide portion) 51 is integrally provided at a position (only one is shown) facing 180 °. In the inspection lid 30, a guide groove portion (engagement portion) 52 is integrally provided at a position facing the outside of the contact portion 32 by 180 °.
However, the width direction dimension of the guide groove 52 is slightly smaller than the width direction dimension of the guide protrusion 51.

  In this state, when the hole 24 of the chamber body 20 is opened, the inspection lid 30 is pressed against the first wall 21a on the upper side of the chamber body 20 as it is. Therefore, the guide groove 52 of the inspection lid 30 is fitted into the guide protrusion 51 of the chamber body 20 in a press-fitted state.

  That is, if the guide groove 52 and the guide protrusion 51 are press-fitted, the inspection lid 30 can be temporarily held without dropping even if the hand is released from the inspection lid 30. Adjustment work for the air volume adjustment plate 40 from the hole 24 and necessary internal work of the chamber body 20 can be easily performed using both hands.

  After the work is completed, the guide groove 52 is easily separated from the guide protrusion 51 by pulling the inspection lid 30 toward the hole 24. Therefore, the inspection lid 30 can be easily adjusted to a normal position with respect to the chamber body 20.

  If the branch chamber A is attached as shown in FIG. 3, it is not necessary to temporarily hold the inspection lid 30. However, since the inspection lid 30 is simply placed on the first wall 21a, when the hole 24 is to be closed again, the position of the inspection lid 30 is not fixed and the alignment is difficult. .

  Also in this case, the provision of the guide protrusion 51 in the first wall portion 21a and the guide groove 52 in the inspection lid 30 in advance makes it possible to determine the position of the temporarily held inspection lid 30 and to re-open the hole. Positioning when closing 24 is facilitated.

FIG. 7 is a longitudinal sectional view of a branch chamber in the third embodiment.
That is, as shown in the second embodiment (FIG. 6), the inspection lid 30 can be temporarily held inside the chamber body 20 and the work on the inside can be facilitated.

  However, at this time, it is necessary to look inside the chamber body 20 from the hole 24 of the chamber body 20 and align the guide groove 52 of the inspection lid 30 with respect to the guide protrusion 51 of the chamber body 20.

  Here, for example, a magnet 55 is inserted into the inner surface of the first wall 21 a facing the hole 24 of the chamber body 20, and a magnetic body 56 is inserted along the peripheral edge of the inspection lid 30. Alternatively, the magnetic body 56 may be inserted into the chamber body 20, and the magnet 55 may be inserted along the peripheral edge of the inspection lid 30.

By providing a plurality of magnets 55 at predetermined intervals and providing the magnetic body 56 in an annular shape, the inspection lid 30 can be moved to a certain degree even if the inspection lid 30 is rotated to some extent. 20 is surely magnetically attracted and temporarily held.
That is, it is not necessary to use extra nerves to temporarily hold the inspection lid 30, and for example, workability for the air volume adjusting plate 40 can be improved from the hole 24.

FIG. 8 is a longitudinal sectional view of the branch chamber A in the fourth embodiment.
As described above in the first embodiment (FIGS. 4 and 5), the nut portion 36 provided on the inspection lid 30 is provided with the mounting screw 27 on the second wall portion 21b constituting the chamber body 20. It was made possible to fix the inspection lid 30 securely by screwing it in.

However, as shown in FIGS. 2 and 3, this work needs to be performed in a narrow space on the ceiling base material T, and the work posture becomes tight and the workability is poor.
Here, the magnet 60 is inserted into the recess 25 of the chamber body 20, and the magnetic body 61 is inserted along the contact portion 32 of the inspection lid 30. Alternatively, the magnetic body 61 may be inserted into the chamber body 20 and the magnet 60 may be inserted into the inspection lid 30.

  By providing a plurality of magnets 60 at a predetermined interval and providing the magnetic body 61 in an annular shape, the inspection lid 30 can be moved to the chamber body even if the inspection lid 30 is rotated to some extent. 20 is surely magnetically attracted. That is, it is not necessary to use extra nerves to fix the inspection lid 30.

  As mentioned above, although this embodiment was described, the above-mentioned embodiment is shown as an example and does not intend limiting the range of embodiment. The novel embodiment can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  K ... Air conditioner, 8a, 8b ... Main duct, a, b ... Outlet, 7, 7a, 7b ... Branch duct, 21a ... First wall part, 21b ... Second wall part, 22 ... Side wall part, DESCRIPTION OF SYMBOLS 12 ... Main duct connection port, 13 ... Branch duct connection port, 20 ... Chamber main body, 24 ... Hole part, 31 ... Plug part, 32 ... Contact part, 30 ... Inspection lid (lid body), 51 ... Guide protrusion (Guide part), 52 ... Guide groove part (hanging part), 55, 60 ... Magnet, 56, 61 ... Magnetic body.

Claims (2)

A main duct extending from the air conditioner communicates with a plurality of branch ducts extending from the outlets of the plurality of chambers, and heat exchange air generated by the air conditioner is passed through the main duct and the branch duct. A branch chamber for an air conditioner that leads to the outlets of a plurality of chambers,
Forming a sealed space with the first wall portion and the second wall portion facing each other at a predetermined interval and the side wall portion integrally connecting the first wall portion and the second wall portion; One main duct connection port for connecting the main duct to the side wall portion, and a chamber body projecting a plurality of branch duct connection ports for connecting the plurality of branch ducts;
A hole provided in one of the first wall and the second wall of the chamber body;
A lid having a plug part fitted in the hole part so as to be freely opened and closed, and an abutting part that is in close contact with and away from the inside of the chamber body along the periphery of the hole part;
A guide portion provided on the other inner surface of the first wall portion or the second wall portion, which constitutes the chamber body, facing the hole portion;
The lid is provided at the contact portion, and the stopper portion of the lid body is detachably engaged with the guide portion in a state in which the hole portion of the chamber body is opened, and the lid body is engaged with the guide. A hook part temporarily holding the wall part provided with a part;
A branch chamber for an air conditioner characterized by comprising: A main duct extending from the air conditioner communicates with a plurality of branch ducts extending from the outlets of the plurality of chambers, and heat exchange air generated by the air conditioner is passed through the main duct and the branch duct. A branch chamber for an air conditioner that leads to the outlets of a plurality of chambers,
Forming a sealed space with the first wall portion and the second wall portion facing each other at a predetermined interval and the side wall portion integrally connecting the first wall portion and the second wall portion; One main duct connection port for connecting the main duct to the side wall portion, and a chamber body projecting a plurality of branch duct connection ports for connecting the plurality of branch ducts;
A hole provided in one of the first wall and the second wall of the chamber body;
A lid having a plug part fitted in the hole part so as to be freely opened and closed, and an abutting part that is in close contact with and away from the inside of the chamber body along the periphery of the hole part;
One of a magnet and a magnetic body embedded in either one of the first wall part or the second wall part that constitutes the chamber body and faces the hole part,
The lid is embedded in the lid body, and the stopper portion of the lid body magnetically attracts to either the embedded magnet or the magnetic body in a state where the hole portion of the chamber body is opened. Either one of the magnet and the magnetic body that is temporarily held in the first wall portion or the second wall portion in which either the magnet or the magnetic body is embedded;
A branch chamber for an air conditioner characterized by comprising:

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