JP6451516B2 - Embedded ceiling air conditioner - Google Patents

Description

  The present invention relates to a ceiling-embedded air conditioner in which a casing is embedded in a ceiling, and more particularly to a structure of a decorative panel.

  The ceiling-embedded air conditioner of the conventional example has a rectangular frame shape in which a box-shaped housing including a heat exchanger and a blower fan (turbo fan) is embedded in the ceiling and attached to the lower surface of the housing. A suction grill is attached to the suction port provided in the center of the decorative panel of the plate body, a rectangular blower outlet is provided around each of the sides of the decorative panel around the suction grille, and between the blower outlets at the corners of the decorative panel. Corner air outlets are connected so that the air sucked from the suction grille is heat-exchanged with the refrigerant in the heat exchanger, and the air direction is adjusted by the wind direction plates provided on the air outlets and the corner air outlets, respectively, and directed in all directions. Air conditioner that blows out and is used in relatively large rooms such as offices and stores.

  Recent ceiling-embedded air conditioners are favored for designs that harmonize with the indoor space where they are installed. Then, the suction holes of the suction grille are formed by combining conventional bars in a grid pattern, so that round holes and square holes are formed in the flat plate to reduce the shaded part, It is closed with a wind direction plate to reduce dark portions that are present in the light body color and give a sense of incongruity, thereby improving the design. (For example, see Patent Document 1)

JP 2005-249328 A

  However, when the main body color of the decorative panel is light, when the wind direction plate is opened, the air outlets and the corner air outlets appear as holes arranged apart, and there is no sense of unity. In addition, dust attached to the periphery of the air outlet is visually recognized by the user and gives unpleasant feeling. In addition, the decorative panel is a large component, so it is necessary to provide a large number of ribs on the back to increase the rigidity. However, the effect of the ribs during resin molding caused sink marks on the surface of the decorative panel, reducing the design of the decorative panel. .

  An object of the present invention is to solve the problems described above and to improve the design of a decorative panel in a ceiling-embedded air conditioner that blows out heat-exchanged air in all directions.

In order to solve the above-described problems, the present invention provides a box-type main body unit embedded in the ceiling of an air-conditioning room, and a ceiling-embedded type including a square decorative panel that is attached to the bottom surface of the main body unit and covers the ceiling In air conditioner,
The decorative panel includes a decorative panel main body, a suction grille detachably attached to the center of the decorative panel main body, a corner panel that covers four corners of the decorative panel main body, and four sides of the decorative panel main body. A panel cover and four wind direction plates pivotally supported by the decorative panel body, the decorative panel body is formed in a dark color, and the suction grille, the corner panel, the panel cover, and the wind direction plate are in a light color. It is formed.

  The dark color is a Munsell color system lightness in the range from lightness 1 to lightness 3, and the light color is a Munsell color system lightness in the range from lightness 8 to lightness 9.

  The decorative panel body includes a frame-shaped outer frame portion, a frame-shaped inner frame portion that is disposed inside the outer frame portion and houses the suction grille, the outer frame portion, and the inner frame portion. It is formed with the connection part connected on the diagonal of a decorative panel main body, The corner panel of the said outer frame part covers the said corner panel, and the said panel cover covers the four sides of the said outer frame part.

  Further, the wind direction plate covers between the outer frame portion and the inner frame portion when the operation is stopped, and the panel cover and the corner panel are arranged so that the outer end of the wind direction plate is virtually perpendicular to the outer frame portion at this time. Covering from the extended position to the outer peripheral edge of the outer frame part is also included.

  The present invention configured as described above is such that the decorative panel covering the ceiling of the air-conditioning room becomes light and conforms to the ceiling, and the inside of the decorative panel is visually recognized as a frame-like dark color even when the wind direction plate rotates. Design with a sense of unity. Moreover, the dust at the air outlet becomes inconspicuous due to the dark color of the decorative panel. Further, by covering the decorative panel with the panel cover and the corner panel, a large number of ribs can be provided on the back surface of the decorative panel, so that the rigidity of the decorative panel can be increased.

1 is an external view of a ceiling-embedded air conditioner according to the present invention. 1 is a front view of a ceiling-embedded air conditioner according to the present invention. In the AA cross-sectional view of FIG. 2, the right side shows operation and the left side shows operation stop. It is an exploded view of the decorative panel of the ceiling-embedded air conditioner according to the present invention. It is the X section enlarged view of FIG. It is the Y section enlarged view of FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, modes for carrying out the present invention will be described in detail as examples based on the accompanying drawings, but the present invention is not limited to these.

  FIG. 1 is an external view of a ceiling-embedded air conditioner 1 according to the present invention, FIG. 2 is a front view seen from an air-conditioning room, FIG. 3 is a cross-sectional view taken along the line AA in FIG. The left side shows when the operation is stopped. A ceiling-embedded air conditioner 1 (hereinafter referred to as an air conditioner 1) according to the present invention shown in FIGS. 1 to 3 is the same as the box-type main unit 10 embedded in the ceiling T in the air-conditioning room K. A rectangular decorative panel 3 attached to the bottom surface 101 of the main unit.

  The main unit 10 includes a top plate 13 formed of a sheet metal having a substantially octagonal shape with four sides of a quadrangle as long sides and chamfered four corners of the quadrangle as short sides, and an outer periphery of the top plate 13 An outer shell is formed with the side plate 11 extending downward from the side plate. As for the side plate 11, the hanging metal fitting 12 is being fixed to four places of the side plate 11a located along the short side of the top plate 13. FIG. The main unit 10 is installed on the ceiling T by suspending the suspension fitting 12 with a plurality of suspension bolts embedded in a ceiling back wall (not shown).

  In the main unit 10 in FIG. 3, the following description will be made with the top plate 13 direction as the upper surface or upper direction and the air-conditioned room K direction as the lower surface or lower direction. The same applies to each part.

  A heat insulating member 14 is provided on the inner peripheral surfaces of the top plate 13 and the side plate 11 of the main unit 10. A fan motor 21 is fixed to the inside of the center of the top plate 13 with screws, and a blower fan 23 is pivotally supported on a shaft 22 extending downward from the fan motor 21. The blower fan 23 is a so-called turbo fan.

  The lower part of the main unit 10 is covered with a drain pan 60. A central portion of the drain pan 60 is opened and serves as a suction port 16. A bell mouth 24 that connects the suction port 16 and the blower fan 23 is disposed in the suction port 16. Further, an electrical component box 18 formed in an L shape is disposed on the suction port 16 side of the bell mouth 24 so as not to obstruct air A passing through the suction port 16. An electrical component for controlling the air conditioner 1 is accommodated in the electrical component box 18.

  The air A in the air-conditioned room is sucked into the main unit 10 from the suction port 16 by the blower fan 23 that is rotationally driven by the fan motor 21. The air A sucked into the main unit 10 is guided to the blower fan 23 along the bell mouth 24 and blown out toward the outside of the blower fan 23.

  Around the blower fan 23, a heat exchanger 25 that surrounds the blower fan 23 and is sandwiched between the heat insulating member 14 and the drain pan 60 is disposed. A drain pan 60 that receives a lower portion of the heat exchanger 25 receives drain water generated by the heat exchanger 25. The drain water is discharged outside by a drain pump (not shown) and a drain pipe connected to the drain pump.

  The heat exchanger 25 is connected to a reversible refrigeration cycle circuit capable of performing a cooling operation and a heating operation (not shown), and cools the air A led from the blower fan 23 by functioning as an evaporator during the cooling operation. During heating operation, it functions as a condenser and heats.

  Four main body outlets 15 between the heat exchanger 25 and the heat insulating member 14 on the inner peripheral surface of the side plate 11 and along each of the four sides of the main body unit 10 provided in the drain pan 60 were blown out from the blower fan 23. It becomes the ventilation path 17 which guides the air A to the blower outlet 31 of the decorative panel 3 mentioned later. The air A heat-exchanged with the refrigerant in the heat exchanger 25 passes through the blower passage 17 and is blown out to the air conditioning chamber K from the outlet 31 described later.

  As described above, when the bottom surface 101 of the main unit 10 and the air conditioner 1 are attached to the ceiling surface T1 with the rectangular plate shown in FIG. A decorative panel 3 covering T1 is provided.

  FIG. 4 is an exploded view of the decorative panel. As shown in FIG. 4, the decorative panel 3 includes a decorative panel main body 30, a suction grill 40 that is detachably attached to the center of the decorative panel main body 30, and a corner panel 41 that covers four corners of the decorative panel main body 30. The panel cover 42 covering the four sides of the decorative panel main body 30; the four wind direction plates 5 pivotally supported by the decorative panel main body 30; and the motor 43 for driving the four wind direction plates 5 respectively; To the decorative panel main body 30, and a first panel heat insulating member 45 that is attached to an air outlet 31 of the inner frame portion 34 described later and forms the inner peripheral side of the air outlet 31. .

  The decorative panel body 30 is made of resin and is formed in a dark color. The suction grill 40, the corner panel 41, the panel cover 42, and the wind direction plate 5 are made of resin and are formed in a light color. The dark color referred to here means the Munsell color system lightness in the range from lightness 1 to lightness 3, and the light color refers to the Munsell color system lightness in the range from lightness 8 to lightness 9.

  The decorative panel body 30 includes a rectangular frame-shaped outer frame portion 33 that forms an outer frame, a frame-shaped inner frame portion 34 that is disposed on the inner side of the outer frame portion 33 and houses the suction grill 40, and an outer frame portion 33. And the inner frame portion 34 are formed by connection portions 35 that connect the diagonal lines D of the decorative panel body. A groove between the outer frame portion 33 and the inner frame portion 34 serves as a blowout passage 32, and an opening formed between adjacent connection portions 35 in the blowout passage 32 has a blowout port 31 that is aligned with the main body blowout port 15. Become. A bearing arm 37 that bridges the outer frame portion 33 and the inner frame portion 34 is provided at the center of the blowout port 31.

  At each outlet 31, the wind direction plate 5 is rotatably arranged. Referring to FIG. 2, each wind direction plate 5 is formed integrally with the wind direction portion 51 that is linearly formed in accordance with the blowout port 31, and the auxiliary wind direction that is integrally formed at both ends of the wind direction portion 51 and covers the blowout passage 32. Parts 52 and 52.

  A rotating shaft (not shown) is provided on the back surface of the wind direction plate 5. In this embodiment, the rotation shaft is provided on the same axis at three locations, the center of the wind direction portion 51 and the left and right ends of the auxiliary wind direction portions 52 and 52. Of the rotary shafts provided at three locations, the central rotary shaft is pivotally supported by the bearing arm 37. One of the left and right rotating shafts is connected to a shaft hole 352 b of a bearing portion 352 provided in a connecting portion 35 described later, and the other is connected to a gear 432 of the motor 43.

  The connecting portion 35 is provided with a motor housing portion 351 and a bearing portion 352 that are symmetrical with respect to the diagonal D of the decorative panel 3. The motor storage portion 351 and the bearing portion 352 are provided along the outer frame portion 33. The motor storage portion 351 and the bearing portion 352 are each provided with blower outlet side wall surfaces 351a and 352a standing vertically on the blower outlet 31 side. In the motor storage portion 351, the motor 43 is stored inside, and the motor 43 is placed on the blower outlet side wall surface 351a. The gear 432 protrudes. The bearing portion 352 includes a shaft hole 352b that receives a shaft portion (not shown) of the wind direction plate 5 on the outlet side wall surface 352a.

  When the operation is stopped, each wind direction plate 33 is rotated horizontally along the air outlet 31 to close the air outlet 31 as shown in FIGS. 1 and 2. At that time, the auxiliary airflow direction portions 52 of the adjacent airflow direction plates 5 are abutted with each other, so that the blowout passages 32 are also closed together.

  Further, during operation, each wind direction plate 5 rotates according to the operation state, and the air outlet 31 appears. Most of the air blown out from each outlet 31 is guided along the surface of the wind direction plate 5 and blown out from the four sides toward the room at a predetermined blowing angle.

  A part of the air blown out from the blowout port 31 is guided along the auxiliary wind direction portion 52, reaches the blowout passage 32, and is blown out toward the room in the diagonal direction D of the decorative panel 3. In this way, in the air conditioner 1, conditioned air is blown out in all directions (eight directions) including the four diagonal D directions in addition to the four directions from each side of the decorative panel 3.

  As shown in FIG. 4, the outer frame portion 33 has openings 337 at corners. The opening 337 includes a mounting portion 331. When attaching the decorative panel 3 to the main unit 10, the main unit 10 is visually observed from the opening 337, and the mounting portion 331 is fixed to the hanging metal fitting 12 of the main unit 10 with a screw. The corner panel 41 covers the mounting portion 331.

  As shown in FIG. 5, the outer frame portion 33 has an edge surface 334 facing the long side of the air outlet 31 as a vertical surface and a curved surface 335 extending from the edge surface 334 to the outlet of the air outlet 31, and extending along the curved surface 335. Guide air in the direction. On the curved surface 335, a stepped portion 335a having a thickness (about 3 mm) of the panel cover 42 is provided at a position where the outer end 5a of the wind direction plate 5 is virtually extended in the vertical direction.

  The panel cover 42 described above is attached from the step portion 335 a to the outer peripheral edge 333 of the outer frame portion 33. The panel cover 42 is provided with the inclined surface 421 up to the top portion 3a at a position separated from the stepped portion 335a by the width W1 and having the same distance H1 from the outer end 5a of the wind direction plate 5 and the ceiling surface T. Further, a decorative surface 422 that is inclined from the top 3a toward the ceiling surface T is provided.

  As shown in FIG. 6, the inclined surface 421 and the decorative surface 422 are each provided with a locking claw 421a and a locking projection 422a on the outer frame portion 33 side. A plurality of the locking claws 421 a and the locking projections 422 a are arranged in a row, and are fixed to the outer frame portion 33 by being locked in locking holes 332 provided in the outer frame portion 33.

  The outer frame portion 33 includes ribs 336 that reinforce the outer frame portion 33 on the inner side. The rib 336 is a linear rib that connects between adjacent openings 337 of the outer frame portion 33 shown in FIG. A plurality of auxiliary ribs (not shown) intersecting with the ribs 336 are also provided. Since the surface of the outer frame portion 33 is covered with the panel cover 42, there is no concern about sink marks caused by the ribs during resin molding, and a large number of ribs 336 and auxiliary ribs can be provided. The rigidity of can be increased.

  The inside of the outer frame portion 33 is filled with the second panel heat insulating member 46 to take measures against condensation.

  A stepped portion 335a is also continuously provided on the curved surface 335 of the outer frame portion 33 where the motor housing portion 351 and the bearing portion 352 of the connecting portion 35 are provided. The corner panel 41 is attached from the stepped portion 335 a to the outer peripheral edge 333 of the outer frame portion 33. The outer frame portion 33 is covered with a light color by the corner panel 41 and the panel cover 42.

  When the operation is stopped, the outlet 31 and the outlet passage 32 are covered with the wind direction plate 5 and are not visually recognized. At this time, the decorative panel 3 is lightly colored as a whole by being visually recognized by the suction grill 40, the corner panel 41, the panel cover 42, and the wind direction plate 5 formed in a light color, and is adapted to the ceiling surface T1 of the air conditioning room K. Become a design. In this way, the light color of the present invention is a bright color close to white that is adapted to the colors of the air conditioning room K and the ceiling surface T1.

  When the operation is started, the wind direction plate 5 rotates. At this time, the blowout passage 32 is visually recognized as a continuous dark groove, so that the internal parts become inconspicuous and the design impresses the omnidirectional blowout. Thus, the dark color of the present invention is a color darker than the light color. Further, by covering the decorative panel main body 30 with the panel cover 42 and the corner panel 41, many ribs can be provided on the back surface of the decorative panel main body 30, and the rigidity of the decorative panel main body 30 can be increased.

1: ceiling-embedded air conditioner (air conditioner), 10: main unit 23: blower fan, 25: heat exchanger 3: decorative panel, 30: decorative panel main body, 31: outlet, 32: outlet passage 33: outer frame portion, 34: inner frame portion, 35: connection portion 40: suction grille, 41: corner panel, 42: panel cover, 421: inclined surface, 422: decorative surface, 43: motor 5: wind direction plate, 5a: Outer end, 51: Wind direction part, 52: Auxiliary wind direction part A: Air, D: Diagonal line, K: Air-conditioned room, T1: Ceiling surface

Claims (4)

In a ceiling-embedded air conditioner equipped with a box-shaped main body unit embedded in the ceiling of an air-conditioning room, and a rectangular decorative panel that is attached to the bottom surface of the main body unit and covers the ceiling,
The decorative panel includes a decorative panel main body, a suction grille detachably attached to the center of the decorative panel main body, a corner panel that covers four corners of the decorative panel main body, and four sides of the decorative panel main body. A panel cover and four wind direction plates pivotally supported by the decorative panel body, the decorative panel body is formed in a dark color, and the suction grille, the corner panel, the panel cover, and the wind direction plate are in a light color. A ceiling-embedded air conditioner characterized by being formed.   The dark color is a Munsell color system lightness ranging from lightness 1 to lightness 3, and the light color is a Munsell color system lightness ranging from lightness 8 to lightness 9 in color. Item 2. A ceiling-embedded air conditioner according to item 1.   The decorative panel body includes a frame-shaped outer frame portion, a frame-shaped inner frame portion that is disposed inside the outer frame portion and houses the suction grille, the outer frame portion, and the inner frame portion. It is formed by the connection part connected on the diagonal D of a main body, The said corner panel covers the corner | angular part of the said outer frame part, The said panel cover covers the four sides of the said outer frame part. The ceiling-embedded air conditioner described.   The wind direction plate covers between the outer frame portion and the inner frame portion when operation is stopped, and the panel cover and the corner panel virtually extend the outer end of the wind direction plate perpendicularly to the outer frame portion at this time. The ceiling-embedded air conditioner according to claim 3, wherein the ceiling-embedded air conditioner is covered from a position to an outer peripheral edge of the outer frame portion.

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