JP4297819B2 - 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, a heat exchanger is arranged so as to surround the blower in a circular or polygonal shape around the centrifugal blower, and the indoor air sucked from the lower part of the blower is heat-exchanged through the heat exchanger, and this heat exchange is performed. A ceiling-embedded air conditioner that blows conditioned air into a room is known (see, for example, Patent Document 1). In this type, it has a main body embedded in the back of the ceiling, and a decorative panel that is exposed to the ceiling and covers the opening of the main body, and has four outlets (four-way cassette type) on the decorative panel, or It has a blower outlet (two-way cassette type) on two sides. In the four-way cassette type, a turbo fan is generally used for a centrifugal blower. When a turbofan is used, it is desirable that the heat exchanger be arranged at a substantially even distance from the turbofan. As a result, the structure is viewed from the viewpoint of miniaturization and high efficiency. , Fit in a nearly square body. In addition, this unit having a square body is configured with a square decorative panel, and is actually suspended in a square opening from which one simple ceiling board (about 900 mm square zip tone) commonly found in offices is removed. The size of the unit, including the screws, is just enough to fit, improving workability.

  In this way, the four-way cassette type has realized a reduction in size, increased efficiency, and improved workability as an air conditioner, and has been highly evaluated in the market. On the other hand, multiple air conditioners are arranged at regular intervals in a wide office. When doing so, it is not necessary to have four outlets each from the point of temperature distribution, but rather there are more outlets than necessary, and air currents blow out in all directions, so unpleasant air currents are likely to hit people directly There is a problem. Also, in office interiors, you can often see the ceiling where lighting fixtures are arranged in a line, but the air conditioner also gives direction to the design and tries to show the office ceiling clearly by matching the lighting line. Tend. In such a case, in the four-way cassette type, a part of the air outlets are orthogonal to the illumination line, so that there is a problem that the design is impaired as compared with those that are not.

  On the other hand, a two-way cassette type has been conventionally proposed. In this two-way cassette type, the directionality of the two outlets can be matched with the directionality of the lighting line, so that the intention of the building designer who wants to improve the design of the interior can be sufficiently reflected. There are advantages. In addition, there is what is called a one-way cassette type, and since this has one outlet, conditioned air can be blown out in an arbitrary direction, and air conditioning can be improved. There are advantages.

As described above, the one-way, two-way, and four-way cassette types have various useful advantages and are generally used properly.
JP-A-5-187649

  When an indoor unit body such as a four-way cassette type, two-way cassette type, or one-way cassette type with the above configuration is arranged behind the above-described system ceiling, an opening formed by removing some ceiling materials In addition, the indoor unit main body is attached.

  However, in general, if even one piece of ceiling material is removed from the system ceiling, the strength balance of the entire ceiling may be lost.

  Accordingly, an object of the present invention is to solve the above-described problems of the conventional technology and to stably install the indoor unit main body behind the so-called ceiling of the system ceiling. To provide an apparatus.

The present invention is disposed on the ceiling of a system ceiling composed of a holding bar that is suspended from a ceiling via a hanger and a ceiling material that is held by the holding bar, a blower, and a heat exchanger. The system includes an indoor unit main body having a drain pan, a holding bar that is suspended from the ceiling via a hanging tool, and a ceiling material that is arranged on the ceiling of the system ceiling that is held by the holding bar. An indoor unit body having a blower, a heat exchanger, and a drain pan is provided, and a hanging tool for suspending the indoor unit body on the ceiling is provided. The indoor unit body is formed by removing a part of the ceiling material. In this opening, a decorative panel connected to the main body is disposed , and the indoor unit main body and the decorative panel are located between two holding bars. Engaging positioner And the positioning member includes an inner contact member that contacts the inner portion of the holding bar and an outer contact member that contacts the outer portion of the holding bar. The machine main body is characterized in that two holding bars are connected via the positioning member .

In this case, the outer portion abutting member may be freely separable to the holding bar. Further , the inner portion abutting material may be detachable from the holding bar.

A part of the decorative panel may cover the lower surface of the holding bar. A cushioning material may be disposed between the decorative panel and the holding bar. Furthermore, you may provide the 2nd inner side part contact | abutting material contact | abutted in the inner part among the inner and outer parts of the said holding | maintenance bar in a part of said decorative panel. The second inner contact member may be a separate body from the decorative panel. Further, the second inner portion abutting material may include a tapered surface that can be brought into contact with the inner portion of the holding bar.

  In the present invention, since the positioning member that engages with the holding bar is provided on at least one of the indoor unit main body and the decorative panel, the indoor unit main body 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 shows an air conditioner called a two-way cassette type equipped with two air outlets. Reference numeral 1 denotes a box-shaped indoor unit main body. The indoor unit main body 1 contains various devices such as a blower 3, a heat exchanger 5, a drain pan 7 made of styrene foam, and a drain pump (not shown). This indoor unit main body 1 is suspended from a ceiling of a conditioned room via a plurality of suspension bolts 8. A decorative panel 9 is attached to an opening surface of the indoor unit body 1 facing downward, and the decorative panel 9 has a large opening at the center, and the opening includes a decorative member 10. . And the suction inlet 11 is formed in the both-sides clearance gap of this decorative member 10, and the two blower outlets 12 are formed in the outer side. Reference numeral 13 denotes a wind direction changing plate.

  When the blower 3 is driven, the indoor air is sucked from the suction port 11 of the decorative panel 9 and reaches the heat exchanger 5 as shown by a solid arrow, and after the heat exchange, the wind direction changing plate 13 Guided and blown into the room from the two outlets 12.

  FIG. 2 is a side sectional view showing a state in which the air conditioning apparatus is installed on the grid system ceiling, and FIG. 3 is a perspective view similarly viewed from the ceiling.

  The grid system ceiling includes a plurality of suspension tools 15 and a holding bar (hereinafter referred to as a T-bar) 17 that is suspended from the ceiling via suspension brackets 16. The T-bar 17 is shown in FIG. In addition, they are assembled in a grid shape and are arranged almost horizontally in the ceiling space. As shown in FIG. 2, the T bar 17 includes a grip portion 18 at an upper portion and a receiving portion 19 at a lower portion, which are 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. And since the clearance gap between the circumference | surroundings of the decorative panel 9 mentioned above and the ceiling material 21 is closed reliably by the receiving part 19, both sealing performance can be improved reliably.

  In this configuration, as shown in FIG. 3, at the arbitrary position in the ceiling space, one T bar (not shown) between the T bar 17A and the T bar 17B is removed and the above-mentioned size located there. Remove the two ceiling materials 21. Then, the indoor unit main body 1 and the decorative panel 9 are assembled in the opening 22 having a size of, for example, 600 × 1200 mm or 640 × 1280 mm after the two ceiling members 21 are removed.

  The indoor unit main body 1 and the decorative panel 9 preferably have a housing size set in accordance with the size of the ceiling material 21 of the grid system ceiling. For example, one ceiling material 21 is provided. It is desirable to prepare as a size corresponding to the case of removal or a size corresponding to the case of removing two ceiling members 21.

  In the present embodiment, as shown in FIG. 2, positioning members 25 that engage with the above-described T-bar 17 are provided on the side surfaces (four locations) of the indoor unit body 1. The positioning member 25 is fixed to the indoor unit main body 1 via a screw 26, and includes an outer portion abutting member 25A that abuts on the outer portion of the grip portion 18 of the T-bar 17 and an inner portion. And an inner portion contact member 25B that contacts the portion. In this configuration, the grip portion 18 of the T bar 17 is sandwiched between the outer portion contact material 25A and the inner portion contact material 25B. Explaining the construction procedure, the ceiling material 21 of the grid system ceiling at an arbitrary position is removed, and the indoor unit main body 1 faces the opening 22 formed there, and the indoor unit main body 1 is suspended from the ceiling via the hanging tool 15. Suspend. And in the positioning member 25, the gripping portion 18 of the T bar 17 is sandwiched between the outer side contact member 25 </ b> A and the inner side contact member 25 </ b> B. It fixes to the side via the screw 26. Next, the outer peripheral collar portion (a part) 9A of the decorative panel 9 is brought into contact with the lower surface of the receiving portion 19 of the T-bar 17 so as to cover the receiving portion 19, and the decorative panel 9 is attached to the indoor unit. It is coupled to the lower surface of the main body 1. In this state, the indoor unit main body 1 and the T bar 17 are connected via the positioning member 25.

  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. In this configuration, not only the two ceiling members 21 but also one T bar 17 is removed.

  In the present embodiment, the indoor unit main body 1 and the T bar 17 are connected via the positioning member 25, and the T bar 17 is firmly connected through the indoor unit main body 1. The balance can be maintained, and the indoor unit main body 1 can be stably installed behind the so-called ceiling of the system ceiling.

  FIG. 4 shows another embodiment.

  In this configuration, the positioning member 25 is formed so as to be finely adjustable in the vertical direction, and the outer contact member 25A is formed so as to be able to contact with and separate from the T bar 17, and further, the inner contact member 25B. However, it is formed so as to be able to contact and separate from the T bar 17. That is, the positioning member 25 includes a vertical portion 25C and a horizontal portion 25D, and a screw hole 26A of a screw 26 is formed in the vertical portion 25C as a long hole in the vertical direction. Further, the outer portion abutting member 25A is composed of a screw 28 attached to the horizontal portion 25D, and this screw 28 is formed so as to protrude in the horizontal direction. The inner contact member 25B is attached to the horizontal portion 25D via a screw 29, and a screw hole 29A of the screw 29 provided in the horizontal portion 25D is formed as a long hole in the horizontal direction. In this embodiment, even if the positional relationship between the indoor unit main body 1 and the T bar 17 is slightly deviated depending on the construction situation, the outer portion contact member 25A or the inner portion contact attached to the positioning member 25 is used. Since the contact material 25B and further the positioning member 25 itself are configured so that the position can be finely adjusted, the above-described positional deviation can be easily absorbed and mounting can be facilitated.

  5 to 7 each show another embodiment.

  In each embodiment, the collar portion 9A on the outer periphery of the decorative panel 9 is provided with a second inner contact member 9B having a function substantially equivalent to the inner contact member 25B described above. According to this example, the positioning member 25 does not need to be provided with the inner side contact material 25B, but it is possible to provide both of the inner side contact materials 25B and 9B. The second inner portion abutting member 9B abuts on the inner portion of the receiving portion 19 of the T bar 17. In FIG. 5, the second inner contact member 9 </ b> B stands upright, but in FIGS. 6 and 7, the outer portion of the second inner contact member 9 </ b> B is the receiving portion 19 of the T-bar 17. The taper surface 9C which can contact | abut to the inner side part of this is provided. According to this, when the decorative panel 9 is inserted from below, the tapered surface 9C described above serves as a guide surface, and therefore interference between the second inner contact member 9B and the receiving portion 19 of the T bar 17 occurs. Is avoided and the insertion of the decorative panel 9 becomes easy. 5 and 6, the second inner contact member 9B is integrally formed on the flange 9A on the outer periphery of the decorative panel 9. In FIG. 7, the second inner contact member is formed. 9B is formed separately. According to this, since the 2nd inner side part contact material 9B becomes what is called retrofit, manufacture of decorative panel 9 itself becomes easy.

  8 and 9 show different embodiments, respectively. In the present configuration, in addition to the configuration of FIG. 2, a cushioning material 31 is further disposed between the decorative panel 9 and the T bar 17. The buffer material 31 is capable of absorbing vibration and absorbs vibration generated inside the indoor unit main body 1, so that the vibration is not easily transmitted to the system ceiling. In FIG. 10, in addition to the configuration of FIG. 2, the side surface of the decorative panel 9 is brought into contact with the inner side portion of the receiving portion 19 of the T bar 17. Thereby, the decorative panel 9, the receiving part 19, and the ceiling material 21 are located on substantially the same plane (the height is substantially the same), and the whole ceiling becomes a flat shape, and a neat design ceiling without an uneven surface. In FIG. 11, the side surface of the decorative panel 9 and the upper surface of the collar portion 9 </ b> A are brought into contact with the inner side portion of the receiving portion 19 of the T bar 17 and the lower surface thereof. In this configuration, since the decorative panel 9 and the T bar 17 are in contact with each other, the indoor unit body 1 can be stably installed.

  The above-described embodiments are merely one aspect of the present invention, and can be arbitrarily modified within the scope of the present invention. For example, in this type of air conditioner, a filter chamber may be sandwiched between the indoor unit body 1 and the decorative panel 9, that is, the indoor unit body 1 may include a filter chamber. In this case, it is obvious that the positioning member 25 may be attached to the filter chamber.

It is sectional drawing which shows one Embodiment of this invention. It is a side view similarly. It is the perspective view seen from the ceiling back. It is a figure which shows another embodiment. It is a figure which shows another embodiment. It is a figure which shows another embodiment. It is a figure which shows another embodiment. It is a figure which shows another embodiment. It is a figure which shows another embodiment. It is a figure which shows another embodiment. It is a figure which shows another embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Indoor unit body 3 Blower 5 Heat exchanger 7 Drain pan 9 Cosmetic panel 9B 2nd inner side contact material 15 Suspension tool 17 T bar (holding bar)
18 Grasp part 19 Receiving part 21 Ceiling material 25 Positioning member 25A Outer part contact material 25B Inner part contact material 31 Buffer material

Claims (8)

The system is composed of a holding bar that is suspended from the ceiling via a hanging tool and a ceiling material that is held by the holding bar, and is arranged behind the ceiling of the system ceiling, and is equipped with a blower, a heat exchanger, and a drain pan. It has an indoor unit body with
With a hanging tool that suspends the indoor unit body from the ceiling,
This indoor unit main body faces an opening formed by removing some ceiling materials, and a decorative panel connected to the main body is placed in this opening,
The indoor unit main body and the decorative panel are located between two holding bars, and the indoor unit main body is provided with a positioning member that engages with each holding bar ,
The positioning member includes an inner portion contact material that contacts the inner portion of the holding bar and an outer portion contact material that contacts the outer portion of the holding bar, respectively.
A ceiling-embedded air conditioner characterized in that the indoor unit main body suspended from a ceiling connects two holding bars via the positioning member . The ceiling-embedded air conditioning apparatus according to claim 1, wherein the outer portion abutting member is freely contactable with and separated from the holding bar . The ceiling-embedded air conditioner according to claim 1 or 2, wherein the inner side abutting member is freely contactable to and away from the holding bar . The ceiling-embedded air conditioner according to any one of claims 1 to 3, wherein a part of the decorative panel covers a lower surface of the holding bar. The ceiling-embedded air conditioning apparatus according to any one of claims 1 to 4, wherein a cushioning material is disposed between the decorative panel and the holding bar . 6. The second inner surface abutting member that abuts on the inner side of the inner and outer sides of the holding bar is provided on a part of the decorative panel. ceiling embedded air conditioning apparatus. The ceiling-embedded air conditioning apparatus according to claim 6, wherein the second inner contact member is separate from the decorative panel . The ceiling-embedded air conditioner according to claim 6 or 7, wherein the second inner contact member includes a tapered surface that can freely contact the inner portion of the holding bar .

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