JP4297820B2 - Embedded ceiling air conditioner - Google Patents

Description

  The present invention relates to a ceiling-embedded air conditioner that includes an indoor unit main body that is disposed behind a ceiling of a system ceiling.

  In recent years, the construction industry has proposed so-called grid system ceilings with a high degree of freedom for both lenders and borrowers in office leasing. This grid system ceiling lends the office a skeleton so that the borrower can freely install any system ceiling. When compared, it is said to contribute to cost reduction.

By the way, generally, an indoor unit main body having a blower, a heat exchanger, and a drain pan is installed on the back of the ceiling, and a blow-out chamber is connected to a blow-out portion of the indoor unit main body through a duct. 2. Description of the Related Art A ceiling-embedded air conditioner that faces the environment is known (see, for example, Patent Document 1).
JP 2000-283548 A

  When the blowing chamber having the above-described configuration is installed on the above-described system ceiling, a part of the ceiling material is cut and the blowing chamber is attached to the opening formed by cutting. However, in general, when a single ceiling member is removed from the system ceiling or removed, and only the remaining ceiling member is attached, there is a problem that the strength balance of the entire ceiling is lost. In addition, a new problem such as the ease of connecting the blowout chamber and the ceiling material may be considered.

  Accordingly, an object of the present invention is to solve the above-described problems of the conventional technique, and to allow a blowout chamber to be stably and easily installed on the ceiling of a so-called system ceiling. An object is to provide an air conditioner.

The present invention relates to a holding bar that is suspended from a ceiling via a hanging tool, and an indoor unit body that is installed on the ceiling of a system ceiling that includes a ceiling material that is held by the holding bar, and that has a blower and a heat exchanger. A blow chamber connected to a blow-out portion of the indoor unit main body through a duct and facing an opening formed by cutting off a part of the ceiling material, and the blow-out chamber is provided on the ceiling as a separate hanging tool. A positioning member provided with an outer side abutting member that abuts on the outer side of the gripping part of the holding bar and sandwiches the gripping part with the side surface of the blowing chamber. It is provided.

  In this case, a suction chamber facing an opening formed by cutting a part of the ceiling material may be further provided, and a positioning member that engages with the holding bar may be provided in the suction chamber. The blowout chamber or suction chamber may be arranged along the holding bar. Further, the blowout chamber or the suction chamber may include an auxiliary tool for holding the remaining portion of the ceiling material partly cut off. Moreover, you may equip the bottom part of the said indoor unit main body with the suction part opened to a ceiling back. Furthermore, the blowing part of the indoor unit main body and the blowing opening of the blowing chamber may extend in the same direction.

  In the present invention, a blowout chamber is connected to the blowout portion of the indoor unit main body through a duct, and this blowout chamber is exposed to an opening formed by cutting off a part of the ceiling material. Since the positioning member that engages with the holding bar is provided, the blowing chamber can be stably installed behind the ceiling of the so-called system ceiling.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a cross-sectional view of an indoor unit main body 1. The indoor unit main body 1 is suspended from the ceiling via a plurality of suspension bolts 2 and includes a blower 3 and a heat exchanger 5 inside thereof. , And a drain pan 7. The indoor unit body 1 has a suction portion 9 that opens to the back of the ceiling at the bottom, and the suction portion 9 includes a filter 10. Moreover, the both sides of the indoor unit main body 1 have the blowing part 11, respectively, and the duct 13 is connected to this blowing part 11, As this duct 13 is shown in FIGS. Connected to the blowout chamber 14.

  2 is a perspective view showing a state in which the indoor unit main body 1 is installed on the grid system ceiling, FIG. 3 is a perspective view of the installation state of the blowing chamber 14 as seen from the ceiling, and FIG. FIG. 3 is an enlarged perspective view showing a chamber 14. Moreover, in FIG. 2, the state which removed the several ceiling material 21 is shown for convenience of explanation.

  As shown in FIG. 3, the grid system ceiling includes a plurality of suspending tools 15 and a holding bar (hereinafter referred to as a T bar) 17 that is suspended from the ceiling via a suspending fitting 16. Are assembled in a grid and are arranged almost horizontally in the ceiling space. The T bar 17 includes a grip portion 18 at an upper portion, a receiving portion 19 at a lower portion, and is connected by a connecting portion 20. A suspension fitting 16 is coupled to the gripping portion 18, and a suspension 15 is coupled to the suspension fitting 16. In addition, a ceiling material 21 having a size of, for example, 600 × 600 mm or 640 × 640 mm is installed on the receiving portion 19 of the T bar 17 assembled in a grid shape so as to be placed on the upper surface thereof. As described above, in recent years, a grid system ceiling with a high degree of freedom has been proposed for both lenders and borrowers in office rentals. This grid system ceiling first lends a skeleton office. Then, the borrower freely suspends the T-bar 17 through the above-described lifting tool 15 and the hanging metal fitting 16, and places the ceiling material 21 having the above-mentioned size on the upper surface of the receiving portion 19, so that any system ceiling can be mounted. Is introduced. According to this, the cost is greatly reduced when compared with the conventional system in which the office lent out with the standard specification is restored after being restored to its original state.

  In the present embodiment, when the indoor unit body 1 described above is installed on the back of the ceiling, the indoor unit body 1 is suspended from the ceiling via a plurality of suspension bolts 2, and the blowing unit 11 of the indoor unit body 1 is used. A blowout chamber 14 connected to the grid system ceiling is attached to the grid system ceiling. That is, as shown in FIGS. 3, 4 and 6, the ceiling material 21 between the T bar 17A and the T bar 17B is removed at an arbitrary position in the ceiling space, and a part of the ceiling material 21 is cut off. Then, the blowout chamber 14 is made to face the opening 22 (FIG. 6) formed by cutting out a part of this. Reference numeral 12 denotes a wind direction changing plate. The width W (FIG. 4) of the blowout chamber 14 is preferably made to correspond to the size of the ceiling material 21. For example, the width W is a size equivalent to 600 mm or 640 mm, and the size W can be prepared. desirable.

  In this embodiment, as shown in FIGS. 3, 4, and 6, the T-bar 17 is provided on the outer side surface (two locations) in the longitudinal direction and the side surface (two locations) in the short direction in the blowout chamber 14. An engaging member 25 for engagement is provided. The positioning member 25 is fixed to the blowing chamber 14 via a screw 26, and includes an outer portion abutting member 25A that abuts on the inner and outer portions of the gripping portion 18 of the T-bar 17. The In this configuration, the grip portion 18 of the T bar 17 is sandwiched between the outer surface of the blowout chamber 14 and the outer portion contact member 25A. Explaining the construction procedure, the indoor unit main body 1 is suspended from the ceiling via a plurality of suspension bolts 2, and the duct 13 is connected to the outlet 11 of the indoor unit main body 1. Next, the ceiling material 21 of the grid system ceiling at an arbitrary position is removed, a part of the ceiling material 21 is cut off, and the blowout chamber 14 is exposed to the opening 22 formed therein. 14 and the duct 13 are connected. As described above, the blowing chamber 14 is attached to the T bar 17 by engaging the four positioning members 25 with the T bar 17. In this case, from the viewpoint of strength, it is desirable to suspend the blowout chamber 14 itself from behind the ceiling with a lifting tool (not shown).

  As shown in FIGS. 5 and 6, an auxiliary tool 33 is attached to the inner surface of the blowout chamber 14 via a screw 31. The auxiliary tool 33 is a means for holding the remaining portion 21A of the ceiling member 21 with a part removed, and the remaining portion 21A of the ceiling member 21 is stably and easily held by the auxiliary tool 33. . However, since the other three sides of the ceiling member 21 are held on the upper surface of the receiving portion 19 of the T bar 17 as described above, the auxiliary tool 33 is not essential and may be omitted. Is possible.

  In this configuration, as shown in FIG. 2, any four ceiling members 21 on the grid system ceiling are removed, a part thereof is cut out, and a part of the opening 22 is formed by cutting out the blowout chamber. 14 is attached. Then, a total of four ceiling members 21 between the blowout chambers 14 are removed, a part thereof is cut off, and a part of the ceiling material 21 is formed by cutting out, as shown in FIGS. 3 and 7, respectively. A suction chamber 34 is formed. The suction chamber 34 is composed of a four-sided frame 34A, and a positioning member 25 and an auxiliary tool 33 having the same configuration and the same function as those described above are attached to the frame 34A.

  FIG. 8 is a view of the grid system ceiling in which the blowout chamber 14 according to the present embodiment is installed as viewed from the indoor side. According to this, the four blowout chambers 14 and the four suction chambers 34 are in the same direction. And is disposed along the T-bar 17. Reference numeral 51 denotes an illuminator, and the illuminator 51 also extends in the same direction. Therefore, a clean ceiling layout is possible in appearance. FIG. 9 shows another embodiment, in this configuration, only four blowout chambers 14 face the grid system ceiling and four suction chambers are omitted. In this case, the suction chamber is formed in another part connected to the back of the ceiling. According to this, a clearer ceiling layout is possible in appearance.

  Next, the operation will be described. When the blower 3 is driven, as indicated by arrows in FIG. 2, indoor air is guided to the ceiling through a total of four suction chambers 34 in the grid system ceiling. 9 is sucked into the indoor unit body 1. Then, this air reaches the heat exchanger 5, and after heat exchange there, the air is blown out into the indoor space via the blowout part 11, the duct 13, and the blowout chamber 14.

  In general, when a single ceiling material 21 is removed from this type of system ceiling, the strength balance of the entire ceiling tends to be lost. On the other hand, in this configuration, a part of each of the plurality of ceiling members 21 is removed by excision.

  In the present embodiment, the blowing chamber 14 and the T bar 17 are connected via the positioning member 25, and the T bar 17 is firmly connected through the blowing chamber 14, so that the strength balance of the entire ceiling is achieved. The blowing chamber 14 can be stably installed behind the ceiling of the system ceiling. Also in the suction chamber 34, the frame body 34 </ b> A and the T bar 17 are connected via the positioning member 25, and the T bar 17 is firmly connected through the frame body 34 </ b> A of the suction chamber 34. Therefore, the strength balance of the entire ceiling can be maintained, and the suction chamber 34 can be stably installed.

  Moreover, in this embodiment, since the suction part 9 opened to the back of the ceiling is provided in the bottom part of the indoor unit main body 1, by removing one or two ceiling members 21 facing the suction part 9, there are The exposed filter 10 can be easily replaced.

  Furthermore, in this structure, since the blowing part 9 and the blowing chamber 14 of the indoor unit main body 1 extend in the same direction, the duct 13 can be easily routed. In the above-described embodiment, the wind direction changing plate is provided at the outlet of the blowout chamber 14. However, the present invention is not limited to this, and the present invention can also be applied to a case where the wind direction changing plate is not provided.

It is sectional drawing which shows an indoor unit main body. It is a perspective view which shows one Embodiment by this invention. It is the perspective view seen from the ceiling back. It is a figure which expands and shows a blowing chamber. It is a figure which shows a blowing chamber. It is a side view which shows the blowing chamber. It is a side view which shows a suction inlet. It is a figure which shows a ceiling layout. It is a figure which shows another ceiling layout.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Indoor unit body 3 Blower 5 Heat exchanger 7 Drain pan 14 Blowing chamber 15 Lifting tool 17 T bar (holding bar)
18 Grasp part 19 Receiving part 21 Ceiling material 25 Positioning member 25A Outer part contact material 33 Auxiliary tool 34 Suction chamber

Claims (6)

An indoor unit main body having a fan and a heat exchanger installed on the ceiling of the ceiling of the system including a holding bar that is suspended from the ceiling via a hanger, and a ceiling material held by the holding bar, and the indoor unit A blowout chamber connected to the blowout portion of the main body via a duct and facing an opening formed by cutting off a part of the ceiling material;
The blowout chamber is suspended on the ceiling via another suspension;
The blowout chamber is provided with a positioning member that is in contact with an outer portion of the grip portion of the holding bar and includes an outer portion contact member that sandwiches the grip portion with a side surface of the blowout chamber. A ceiling-embedded air conditioner.   The suction chamber according to claim 1, further comprising a suction chamber facing an opening formed by cutting a part of the ceiling material, and a positioning member that engages with the holding bar is provided in the suction chamber. The ceiling-embedded air conditioner according to 1.   3. The ceiling-embedded air conditioner according to claim 1, wherein the blowout chamber or the suction chamber is disposed along the holding bar.   4. The ceiling-embedded air conditioner according to claim 1, wherein the blowout chamber or the suction chamber includes an auxiliary tool for holding the remaining portion of the ceiling material partly cut off. 5. .   The ceiling-embedded air conditioner according to any one of claims 1 to 4, further comprising a suction portion that opens at a bottom of the ceiling of the indoor unit main body.   6. The ceiling-embedded air conditioning apparatus according to claim 1, wherein the blow-out portion of the indoor unit main body and the blow-out chamber extend in the same direction.

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