JP4704226B2 - Ceiling cassette type air conditioner - Google Patents

Description

  The present invention relates to a ceiling cassette type air conditioner, and more particularly to a structure of a decorative panel of a ceiling cassette type air conditioner in which a plurality of air conditioners are housed in one casing.

In general, when air-conditioning a wide space such as a store, a ceiling cassette type air conditioner that can blow air-conditioned air in a plurality of directions instead of a so-called wall-mounted type that is attached to a wall tends to be frequently used. . In recent years, with an increase in the size of stores, this type of ceiling cassette type air conditioner is required to have a large capacity.
When this large-capacity air conditioner is newly developed, new components such as a heat exchanger and a blower fan are required, which leads to a longer development period and higher development costs. As shown in the figure, two existing ceiling cassette type air conditioners are housed in a single outer plate to form a large capacity air conditioner, which is designed to share parts and shorten the development period. ing.
Japanese Patent No. 3695916

  However, with the above-described ceiling cassette type air conditioner, it is necessary to increase the size of the decorative panel attached to the lower surface as the size of the air conditioner body increases. This type of decorative panel uses resin-molded products and pressed products of metal plates. However, when manufacturing long and large products, the mold cost will be high and the product cost will increase. There was a problem.

  Accordingly, an object of the present invention is to provide a ceiling cassette type air conditioner that includes a decorative panel that has a good appearance while suppressing an increase in cost even in a long and large size.

In order to solve the above-described problems, the present invention is provided on an outer frame portion suspended from a ceiling, a plurality of air conditioner main bodies housed side by side in the outer frame portion, and a lower surface of the outer frame portion. In a ceiling cassette type air conditioner equipped with a decorative panel part,
The decorative panel unit includes a plurality of decorative panels each having a suction port and an outlet, a decorative panel connecting member that connects the plurality of decorative panels, and a cover member that covers a portion where the decorative panels are adjacent to each other. The decorative panel connecting member is configured to span between decorative panel corner portions on the side where the decorative panels are adjacent to each other, and has a locking portion that locks the cover member. A thin cover plate that is curved along the shape of the decorative panel; a hooking portion that is provided on a surface of the cover plate facing the decorative panel and engages with a locking portion of the panel connecting member; and the cover A fixing portion provided at both ends of the plate and engaged with an edge portion of the decorative panel;

  According to the present invention, an increase in the cost of a decorative panel can be suppressed even in a long and large air conditioner, and the appearance can be improved.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a ceiling cassette type air conditioner 1 according to the present invention from the lower surface side, FIG. 2 is a perspective view showing a state in which a cover member 5 is removed from the air conditioner 1, and FIG. FIG. 4 is a side view of the air conditioner 1, FIG. 5 is a cross-sectional view of the built-in unit 21, and FIG. 6 is a cover member 5 and panel connecting members 4 a and 4 b. FIG. 7 is an enlarged view of the connecting portion of the decorative panels 31, FIG. 8 is a view showing a state in which the panel connecting members 4 a and 4 b are attached in FIG. 7, and FIG. 9 is a procedure for attaching the cover member 5. FIG.

  As shown in FIG. 1, an indoor unit 1 of a ceiling cassette type air conditioner is inserted from an indoor side into a mounting opening provided on a ceiling plate of an air-conditioned room and is so-called a ceiling back via a hanging bolt or the like. The outer frame portion 10 is suspended and fixed to the inner frame, and the decorative panel portion 3 is exposed and attached to the indoor side of the outer frame portion 10.

  The outer frame portion 10 has an upper surface portion 10a and a side surface portion 10b that are substantially all open on the lower surface thereof, and is formed in a box shape from a metal plate.

As shown in FIG. 4, two ceiling cassette type air conditioner bodies (hereinafter referred to as “built-in units”) 2 and 2, which will be described later, are stored in the outer frame portion 10 side by side in the longitudinal direction of the outer frame portion 10. Has been.
Further, a hanging member 11 protruding outward in the horizontal direction is provided at a corner portion on the side surface of the outer frame portion 10, and a hanging bolt 100 is attached to a long hole formed in the central portion of the hanging member 11. The nut 101 is screwed to the lower side of the insertion portion. Thereby, the suspension member 11 comes into contact with the upper surface of the nut, and the outer frame portion 10 is suspended and supported by the suspension bolt 100.

  Further, the drain side 12 and a gas pipe connection part 13a and a liquid pipe connection part 13b to which a local refrigerant pipe is connected are provided on one side surface 10b on the longitudinal side of the outer frame part 10.

Next, the built-in unit 2 will be described.
The built-in units 2 and 2 use the same-capacity four-way blowing type ceiling cassette type air conditioner main body. Here, when two 5 horsepower air conditioners are used, the air conditioner 1 has a capacity of 10 horsepower.

  As shown in FIG. 5, the built-in units 2 and 2 are provided with a box-shaped housing 21 whose substantially lower surface is open, and a blower 22 is disposed in the center so as to surround the blower 22. The indoor heat exchanger 23 is accommodated.

  The blower 22 includes a fan motor 22a that is attached and fixed to the upper surface of the housing 21 by an appropriate means, and a fan 22b that is attached to the rotation shaft of the fan motor 22a. The blower 22 sucks air from the rotation axis direction and blows it out in the circumferential direction as the fan 22b rotates.

  The lower end portion of the indoor heat exchanger 23 is arranged in a rectangular frame-shaped drain pan 24 provided in the lower portion of the casing 21 so as to receive drain water generated by the indoor heat exchanger 23.

  A bell mouth 25 is provided between a suction port 32 of the decorative panel 31 described later and the blower fan 22, and the periphery thereof is surrounded by a drain pan 24. An electrical component box 26 is provided on the lower surface side of the bell mouth 25, and a control circuit is accommodated therein.

The built-in units 2 and 2 are each provided with a drain outlet and a refrigerant pipe connection part (both not shown) on one side of the casing 21 so that one side on which these are provided faces each other. The outer frame portion 10 is accommodated.
At this time, the built-in units 2 and 2 are arranged so as to have a predetermined gap as shown in FIG. In this gap, a drain outlet pipe (not shown) for guiding drain water generated in each of the built-in units 2 and 2 to a drain drain port 12 provided in the outer frame portion 10, a gas pipe connecting portion 13a and a liquid pipe connecting portion 13b. And refrigerant pipes (not shown) that connect the refrigerant pipe connection portions of the built-in units 2 and 2 are arranged.

Next, the decorative panel unit 3 will be described.
As shown in FIG. 1 to FIG. 3, the decorative panel unit 3 includes two decorative panels 31, 31 of four-direction blowing type, two decorative panel connecting members 4 a, 4 b that connect the decorative panels 31, 31, The panel 31 and 31 are comprised by the cover member 5 which covers the part which adjoins.
The decorative panels 31, 31 have a rectangular suction port 32 opened in the center thereof, and air outlets 33 provided at four locations along each side of the suction port 32. A suction grill 34 is detachably attached to the suction port 32, and a louver 35 that guides conditioned air to the air-conditioned space is attached to each outlet 33.

Opening portions 36 (FIG. 7) are provided at the corner portions of the decorative panels 31 and 31, and lids 37 are detachably attached to the opening portions 36 located at the corner portions of the outer frame portion 10, respectively. Yes.
The hanging portion 11 of the outer frame portion 10 is positioned directly above the opening portion 36 and the lid 37. By removing the lid 37, the screwing position of the nut 101 with respect to the hanging bolt 100 is adjusted, and the outer frame The hanging height position of the part 10 can be adjusted.

  As shown in FIGS. 6 to 8, panel connecting members 4 a and 4 b are arranged in the opening 33 on the side where the decorative panels 31 and 31 are adjacent to each other instead of the lid 37, and the decorative panels 31 and 31 are adjacent to each other. It spans between the corners.

  The panel connecting members 4a and 4b are formed of a metal plate, and locking pieces 41a provided substantially horizontally toward the opposing sides at the end portions on the side where the panel connecting portions 4a and 4b are opposed to each other. , 41b. The locking pieces 41a and 41b engage with hook members 51a and 51b of the cover member 5 to be described later.

  Further, locking claws 42a and 42b are provided at the ends of the panel connecting members 4a and 4b opposite to the locking pieces 41a and 41b. The locking claws 42a and 42b are provided in two at a predetermined interval, and are fitted into the recesses 31b provided in the panel edge 31a surrounding the opening 36 of each decorative panel 31 and 31. Thereby, positioning with the panel connection parts 4a and 4b and the decorative panels 31 and 31 can be performed easily.

The panel connecting members 4a and 4b are provided with a plurality of mounting holes 43a and 43b, respectively, and the decorative panels 31 and 31 have a plurality of mounting holes 31c at positions corresponding to the mounting holes 43a and 43b. Is provided.
The panel connecting members 4a and 4b are arranged in the decorative panels 31 and 31, and the fixing panels 31 and 31 are inserted into the mounting holes 43a, 43b and 31c facing each other, so that the decorative panels 31 and 31 attach the panel connecting members 4a and 4b. It is connected and fixed via.

  As shown in FIG. 6, the cover member 5 includes a cover plate 50 made of a thin metal plate or a resin thin plate, and hook members 51a and 51b that engage with the panel connecting members 4a and 4b, respectively.

  The cover plate 50 bends easily when an external force is applied, and has a resiliency that restores when the external force is removed. The cover plate 50 has a constricted shape on both sides along the outer peripheral edge of the suction grille 34, and has a full width of the decorative panel 31. It is provided over.

  As shown in FIG. 6, the hook members 51 a and 51 b are provided substantially parallel to each other on the surface of the cover plate 50 facing the decorative panels 31 and 31 with a predetermined distance from each other, and are respectively substantially horizontal in the outward direction. The hook pieces 52a and 52b are provided. The hook pieces 52a and 52b are provided with a predetermined gap from the cover plate 50, respectively. That is, the locking piece 41a of the panel connecting member 4a is inserted into the gap between the hooking piece 52a and the cover plate 50, and the locking piece of the panel connecting member 4b is inserted into the gap between the other hooking piece 52b and the cover plate 50. By inserting 41b, the cover member 5 is locked to the panel connecting members 4a and 4b.

Further, fixing portions 53 a and 53 b for fixing the cover member 5 to the decorative panels 31 and 31 are provided at both end portions 50 a and 50 b of the cover plate 50. The fixing portion 53a provided at one end portion 50a of the cover plate 50 has a vertical piece portion 53a1 bent in a substantially vertical direction from the end portion of the cover plate 50, and further, an end portion of the vertical piece portion 53a1. The horizontal piece 53a2 is formed so as to be bent substantially horizontally inward from the inner side, and the fixed portion 53b is formed in a U-shape when viewed in cross section.
The fixing portion 53 a is locked to the decorative panels 31, 31 when the locking portion 53 a sandwiches the edge 31 a of the decorative panels 31, 31.

  On the other hand, the fixing portion 53b provided at the other end portion 50b of the cover plate 50 has a vertical piece portion 53b1 like the other fixing portion 53a, and the vertical piece portion 53b1 has a predetermined interval in the width direction. Thus, two mounting holes 53b2 are provided. An attachment hole 31d (FIG. 7) is provided in the edge 31a of the decorative panel 31, 31 facing the fixing portion 53b, and a clip-like fixing member is provided in the attachment hole 53b2 and the attachment hole 31d facing each other. By inserting 54, the fixing portion 53 b is locked to the decorative panels 31, 31.

  In the indoor unit 1 of the ceiling-embedded air conditioner configured as described above, the air blowers 22 and 22 of the built-in units 2 and 2 are driven, whereby the suction ports 32 and 32 of the decorative panel unit 3 are driven. After the air to be conditioned is sucked into the built-in units 2 and 2 and heat exchange is performed in the respective heat exchangers 23 and 23, a plurality of air outlets 33 other than the air outlet 33 blocked by the cover member 5 of the decorative panel unit 3 are removed. From the air outlet 33 to the air-conditioned room side.

  Next, a procedure for attaching the cover member 5 to the decorative panel 3 will be described with reference to FIG. 9 is a schematic cross-sectional view taken along the line XX in FIG. 3 and shows the top and bottom reversed from the time when the air conditioner 1 is installed.

  First, as shown in FIG. 9A, the hook piece 52a of the cover member 5 and the locking piece 41a of the panel connecting member 4a are first engaged. At this time, the cover plate 50 is curved as shown by a two-dot chain line in FIG.

  Subsequently, by bringing the opposite hooking member 51b side closer to the decorative panels 31, 31, the shape of the cover plate 50 is restored as shown by the solid line in FIG. 9 (2), and the hooking member 51b becomes the panel connecting member 4b. It faces the locking piece 41b.

  Next, as shown in FIG. 9 (3), this portion is curved along the shape of the decorative panels 31, 31 by pressing down the fixing portion 53 a side of the cover plate 50.

  In this state, as shown in FIG. 9 (4), the fixing member 53 a and the edge 31 a of the decorative panel 31, 31 are locked by sliding the cover member 5 in the arrow direction (right direction in the drawing). At this time, as shown in FIG. 9 (3), the engaging piece 41a of the panel connecting member 4a and the hooking piece 51a of the cover member 5 are more engaged than the length P of the horizontal piece 53a2 of the engaging portion 53a. Since the joining length Q is long, the panel connecting member 4a can be hooked even if it is slid until the inner surface of the vertical piece 53a1 of the fixing portion 53a contacts the edge 31a of the decorative panel 31, 31. The engagement of the member 51a is not released.

Then, by sliding the cover member 5, the panel connecting member 4b and the hooking member 51b are engaged. That is, the locking piece 41 b of the panel connecting member 4 b is inserted into the gap between the hooking piece 52 b and the cover plate 50.
In this state, the distance R between the end portions of the hooking pieces 52a, 52b is set to be longer than the distance S between the end portions of the locking pieces 41a, 41b, so that the panel connecting members 4a, 4b and the hooking member 51a, The engagement of 51b is not released.

As shown in FIG. 9 (5), this portion is bent along the shape of the decorative panels 31, 31 by pressing down the locking portion 53 b side of the cover member 5.
In this state, as shown in FIG. 9 (6), by inserting a clip-shaped fixture 54, the locking portion 53 b is fixed to the edge portion 31 a of the decorative panels 31 and 31.

By attaching the cover member 5 to the decorative panel portion 3 in this manner, the panel connecting members 4a and 4b and the air outlet 33 located on the side where the decorative panels 31 and 31 face each other are covered, and the two decorative panels 31 are covered. , 31 are visible as a single decorative panel portion 3.
Here, the air outlet 33 that is blocked by the cover member 5 is previously blocked by a separate shielding member.

  As described above, the decorative panel unit 3 according to the present invention has a configuration in which the two decorative panels 31 and 31 are connected and fixed by the connecting members 4a and 4b and the connecting portion is covered by the cover member 5, so No increase in cost can be suppressed because no mold is required. Moreover, since many existing parts can be used, a new mold is not required, and development time and product cost can be reduced.

  Moreover, since the cover member 5 can be attached without using a screw and a tool, assembly time is shortened and maintenance is improved.

  Further, since the cover plate 50 is curved along the shape of the decorative panel 31, the cover member 5 can be easily attached, and the boundary portion between the cover member 5 and the decorative panels 31, 31 becomes inconspicuous and looks good. can do.

  Although the present invention has been described with respect to the ceiling cassette type air conditioner of the four-direction blowing type in the embodiment, the present invention is not limited to this, and can be applied to, for example, a two-way blowing type ceiling cassette type air conditioner. In addition, two ceiling cassette type air conditioners main bodies are housed in one outer frame body, but it may be configured to house three, and the present invention is not limited to this.

It is a perspective view which shows the ceiling cassette type air conditioner based on Embodiment of this invention from the lower surface side. It is the perspective view which removed the cover member from the ceiling cassette type air conditioner based on the embodiment, and was seen from the lower surface side. It is the figure which removed the cover member from the ceiling cassette type air conditioner based on the embodiment, and was seen from the lower surface side. It is a side view of the ceiling cassette type air conditioner based on the embodiment. It is sectional drawing of the built-in unit of the ceiling cassette type air conditioner based on the embodiment. It is a perspective view which shows the cover member and panel connection member of a ceiling cassette type air conditioner based on the embodiment. It is a top view which partially enlarges and shows the decorative panel of the ceiling cassette type air conditioner based on the embodiment. It is a top view which partially enlarges and shows the decorative panel and panel connection member of a ceiling cassette type air conditioner based on the embodiment. It is sectional drawing explaining the attachment procedure of the cover member of the ceiling cassette type air conditioner based on the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Ceiling cassette type air conditioner, 2 ... Built-in unit, 3 ... Makeup panel part, 4a, 4b ... Panel connection member, 5 ... Cover member, 10 ... Outer frame part, 31 ... Makeup panel, 36 ... Opening part, 37 ... lid, 41a, 41b ... locking piece, 50 ... cover plate, 51a, 51b ... hooking part, 53a, 53b ... fixing part

Claims (2)

A ceiling cassette provided with an outer frame portion suspended from the ceiling, a plurality of air conditioner bodies housed side by side in the outer frame portion, and a decorative panel portion provided on the lower surface of the outer frame portion In the air conditioning equipment,
The decorative panel unit includes a plurality of decorative panels each having a suction port and an outlet, a decorative panel connecting member that connects the plurality of decorative panels, and a cover member that covers a portion where the decorative panels are adjacent to each other. Configured,
The decorative panel connecting member has a locking portion that is spanned between decorative panel corner portions on the side where the decorative panels are adjacent to each other, and locks the cover member.
The cover member is provided on a surface of the cover plate facing the decorative panel, and is hooked to engage with a locking portion of the panel connecting member. The cover plate is curved along the shape of the decorative panel. A ceiling cassette type air conditioner , comprising: a fixing portion that is provided at both ends of the cover plate and engages with an edge portion of the decorative panel . The plurality of decorative panels are decorative panels of a four-way blowing type ceiling cassette type air conditioner having an opening provided in a corner portion and a lid that is detachably attached to the opening portion. The ceiling cassette type air conditioner according to claim 2, wherein the connecting member is attached in place of the lid on the side where the decorative panels are adjacent to each other.

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