JP5880163B2 - Embedded ceiling air conditioner - Google Patents

Description

  The present invention relates to a ceiling-embedded air conditioner, and particularly to the shape of a suction grill.

  A ceiling-embedded air conditioner is mainly used for air conditioning in a building, and in a large office or the like, a plurality of units are installed evenly on the ceiling. Thus, for example, as in the conventional ceiling-embedded air conditioner 100 shown in FIG. 8, the suction grill 110 for sucking air in the air-conditioned room is provided with a plurality of substantially square suction openings 120 at the center. So, no matter which direction the ceiling-embedded air conditioner is installed, it will look the same, improving the design, and even if multiple units are mounted on the ceiling, it has a unified arrangement. There is something to be. (For example, see Patent Document 1)

The shape of the opening of the suction grill is closely related to the suction efficiency. By reducing the ventilation resistance of the suction grille, it is possible to expect the effect that the amount of suction air increases, the flow velocity is reduced, and as a result, noise is reduced.
However, in the case where the suction opening 110 is provided in the suction grill 110 as in the conventional example, since the portion other than the suction opening 120 is formed as a lattice-shaped crosspiece 130, the opening area is reduced, and the sucked air Ventilation resistance is increased by hitting the crosspiece 130. For this reason, the flow velocity is increased, and as a result, noise is generated.

Registered Design No. 1110911

  In view of the above problems, an object of the present invention is to provide a ceiling-embedded air conditioner having a suction grill that has a unified design and improves suction efficiency even when a plurality of units are attached to the ceiling. provide.

In a ceiling-embedded air conditioner comprising a main body unit and a decorative panel attached to the lower part of the main body unit, and having a suction grille that is detachably attached to a suction port opened in the center of the decorative panel.
The suction grill includes a frame-shaped peripheral edge, an opening in the frame of the peripheral edge, an opening side wall erected on the opening side of the peripheral edge, and a front surface and a surface of the peripheral edge in the opening. A plurality of decorative plates arranged in one, a connecting rib that is arranged on the back side of the decorative plate in the opening and bridges the facing side of the opening side wall, and the decorative plate is connected to the decorative plate depending from the connecting rib. It is characterized by comprising hanging ribs.

  The suction grill is characterized in that at least the peripheral edge and the front side of the decorative plate are light in color, and the connecting rib and the hanging rib are dark in color.

  It is also characterized in that a light source is provided at least on a part of the decorative plate.

  The effect of the present invention is that the suction grill has a frame-shaped peripheral edge, an opening in the peripheral edge, an opening side wall erected on the opening side of the peripheral edge, and the peripheral edge in the opening. A plurality of decorative plates arranged flush with the front surface, a connecting rib arranged on the back side of the decorative plate in the opening and bridging the opposite side of the opening side wall, and the decorative plate hanging from the connecting rib The air that has passed between the decorative plates spreads widely at one end, the position of the hanging rib, and then passes between the connecting ribs, reducing ventilation resistance, Suction efficiency is improved.

  Further, the suction grill is configured so that at least the peripheral portion and the front side of the decorative plate are light in color, and the connecting rib and the hanging rib are dark in color so that the ceiling-embedded air conditioner attached to the ceiling is covered. When the user looks up from the air-conditioned room, the inside of the main unit that can be seen through the opening looks dark, so the connecting ribs and the hanging ribs in the opening will melt into the main unit and not feel the presence. Only the decorative board is visible. The decorative board appears to appear white in a dark color, and has a refreshing and innovative design. Even when multiple units are mounted on the ceiling, it has a unified design.

  Furthermore, by providing a light source at least on a part of the decorative plate, the light emitted from the light source floats in the dark color of the background and is emitted and visually recognized. It becomes.

1 is a partial cross-sectional view of a ceiling-embedded air conditioner according to the present invention. 1 is an external perspective view of a ceiling-embedded air conditioner according to the present invention. 1 is a front view of a suction grill of a ceiling-embedded air conditioner according to the present invention. It is the perspective view which looked at the suction grille of the ceiling embedded type air conditioner by this invention from the back. It is the Y section enlarged view of FIG. It is the X section enlarged view of FIG. It is another suction grille front view of the ceiling-embedded air conditioner according to the present invention. It is a front view of the ceiling embedded type air conditioner by a prior art example.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail as examples based on the attached drawings.

The ceiling-embedded air conditioner is mainly used for air conditioning in a building, and a plurality of units are equally installed on the ceiling of a large air-conditioned room such as a hotel or office.
As shown in FIGS. 1 and 2, the ceiling-embedded air conditioner 1 according to the present invention includes a main unit 10 and a decorative panel 20 attached to the lower part of the main unit 10.

  The main body unit 10 includes an outer cylinder 11 formed of a steel plate in a polygonal shape whose lower surface is opened, a fan motor 12 disposed in the center of the outer cylinder 11, a turbo fan 13 rotated by the fan motor 12, and a turbo fan A bell mouth 14 below 13, a heat exchanger 15 surrounding the turbo fan 13, a drain pan 16 that receives the drain water of the heat exchanger 15, and a ventilation formed between the heat exchanger 15 and the outer body 11. Road 17.

  The decorative panel 20 is formed in a substantially square shape when viewed from the front, and has a suction port 21 formed by opening the center in accordance with the opening of the bell mouth 14, a suction grill 30 attached to the suction port 21, and a suction grill 30. The filter 40 is attached to the back surface of the air outlet, and the air outlet 22 is provided symmetrically on each side of the square shape continuously with the ventilation path 17 and the airflow direction plate 23 is provided in the air outlet 22.

  The air in the air-conditioned room where the ceiling-embedded air conditioner 1 is installed with the above configuration is sucked by the turbo fan 13 rotated by the fan motor 12, passes through the suction grill 30 in the suction port 21, and becomes dust by the filter 40. And is guided to the turbo fan 13 by the bell mouth 14, sent to the heat exchanger 15 surrounding the turbo fan 13, and exchanges heat by passing through the heat exchanger 15, so that the ventilation path of the main body unit 10 is obtained. 17, the wind direction is deflected by the wind direction plate 23 from the air outlet 22 of the decorative panel 20 and the air is blown into the room.

  The suction grill 30 is detachably locked to the suction port 21 of the decorative panel 20 by a locking mechanism (not shown) in order to be removed for cleaning the filter 40 and maintenance of the main unit 10. Moreover, you may provide the suspension mechanism which descends to a predetermined position with a wire.

  As shown in FIGS. 1, 3 to 6, the suction grill 30 is formed into a rectangular shape with resin, and has a frame-shaped peripheral edge 32 and an opening 31 corresponding to the bell mouth 14 within the frame of the peripheral edge 32. An opening side wall 32 a erected on the opening side of the rim 32, an outer wall 32 b erected on the outer side of the rim 32 and abutting against the decorative panel 20, and the rim 32 in the opening 31. A plurality of decorative plates 33 arranged flush with the front surface of the plate, a connecting rib 34 arranged on the back side of the decorative plate 33 in the opening 31 to bridge the facing side of the opening side wall 32a, and suspended from the connecting rib 34 And a hanging rib 35 that supports the decorative plate 33.

The decorative plate 33 has a flat plate shape or a smooth surface at least on the front surface side. In FIG. 3, all the decorative plates 33 are formed in a circular shape with the same size, and are equally arranged at the same intervals in both the vertical and horizontal directions.
The suction grill 30 takes in air from the air-conditioned room and prevents foreign matter from entering the main unit 10. A portion where the decorative plate 35 is not disposed in the opening 31 is an air intake port 36. The larger the area of the air intake port 36, the lower the draft resistance and the higher the suction efficiency. On the other hand, since it is necessary to prevent the intruding fingers and foreign objects in front of the fan motor 12 and the turbo fan 13, the adjacent decorative plate The gap between the decorative plate 33 and the decorative plate 33 is arranged with a gap A so that it does not reach the turbofan 13 even if the test finger 60 enters. In the case of FIG. 3, a diameter of 12 mm is assumed.
Even if the decorative plate 33 is arranged with the interval A maintained, if the diameter of the decorative plate 33 is large, the area of the air intake port 30 becomes small. Therefore, the distance A and the diameter B of the decorative plate 33 are preferably A> B.

  In FIG. 3, the shape of the decorative plate 33 is circular. However, the shape is not limited to this, and the shape may be a square shape such as the decorative plate 331 of FIG. Further, the size may be gradually changed from the center toward the peripheral edge 32 while having an opening area as shown in FIG. 7, and the shape and arrangement may be the same shape even if the suction grill 30 is rotated 90 degrees. It ’s fine.

The connecting rib 34 connects the decorative plate 33 to the opening side wall 32a, and at least a part of the connecting rib 34 connects the opening side wall 32a facing each other. Further, the connecting rib 34 is formed in a thin plate shape with a reduced thickness 34a in order to reduce air resistance. The arrangement of the connecting ribs 34 is the same as the arrangement of the decorative plates 33. However, the decorative plates 33 do not necessarily have to be arranged in accordance with the intersecting portions of the connecting ribs 34 and the connecting ribs 34. In the case where they are arranged vertically and horizontally, the number of either the vertical or the horizontal may be matched to the number of rows of the decorative plates 33, and the other number may be a number that can be reinforced.
Moreover, it is good also as a structure which arrange | positions the connection rib 341 which each connects between the connection rib 341 which comprises a diagonal line, and the connection rib 341 and the connection rib 341 like FIG.

  The hanging rib 35 is hung from the connecting rib 34 and connected to the decorative plate 33. In order to reduce air resistance, the hanging rib 35 has a thickness 34a equivalent to that of the connecting rib 34. 33. The hanging rib 35 has the same width 35a as the connecting portion with the decorative plate 33 or larger than the suction grill 30 in the mold so as to pass through the suction grill 30 in the vertical direction.

  With the configuration of the suction grill 30 described above, the air that has passed through the air intake port 36 between the decorative plates 35 once spreads widely at the position of the hanging rib 34 and then passes between the connecting ribs 34. . Thereby, as compared with the case where air passes through the small holes between the grid-like bars at a stretch as in the conventional example, the air gradually and gradually becomes between the decorative plate 33 → the hanging rib 34 → the connecting rib 34. By passing, the draft resistance is reduced, and the suction speed is improved without increasing the wind speed.

As shown in FIG. 6, the suction grill 30 is configured such that the peripheral portion 32 and the front side of the decorative plate 33 are light (for example, white), and the connecting rib 34 and the hanging rib 35 are configured to be dark (for example, black).
Thus, when the user looks up from the air-conditioned room to the ceiling-embedded air conditioner 1 attached to the ceiling, the filter 40 and the inside of the main unit 10 that can be visually recognized through the opening 31 as shown in FIG. Since it looks dark, the connecting rib 34 and the hanging rib 35 in the opening 31 melt into the main unit 10 and do not feel the presence, so that only the decorative plate 33 is visible. The decorative board 33 appears to be white in a dark color and has a refreshing and innovative design.

  For processing the peripheral edge 32 and the front side of the decorative plate 33 to be light and the connecting ribs 34 and the hanging ribs 35 to be dark, for example, the entire suction grill 30 is molded in dark and a light hot stamp is applied to the surface. A processing method may be used. In this case, the peripheral edge 32 and the front side of the decorative plate 33 are light in color, and the connecting rib 34, the hanging rib 35, the open side wall 32a, and the outer wall 32b are dark in color.

  Alternatively, the peripheral edge portion 32 and the decorative plate 33 may be formed by two-color molding in which the connection rib 34 and the hanging rib 35 are dark in color. In this case, the peripheral edge 32 and the decorative plate 33 are light in color, and the connecting rib 34, the hanging rib 35, the opening side wall 32a, and the outer wall 32b are dark in color.

  Further, there is a method in which the entire suction grill 30 is molded in a light color and the front side is masked, and then a dark paint is sprayed. In this case, the peripheral edge 32, the decorative plate 33, and the outer wall 32b are light in color, and the connecting rib 34, the hanging rib 35, and the opening side wall 32a are dark in color.

  As another method of processing in which the peripheral portion 32 and the front side of the decorative plate 33 are light in color and the connecting rib 34 and the hanging rib 35 are dark in color, the suction grill 30 is connected to the peripheral portion 32 by light-colored resin molding. The rib 34, the hanging rib 35, the opening side wall 32a, and the outer wall 32b are formed. The peripheral edge 32 and the outer wall 32b are masked, and the connecting rib 34 and the hanging rib 35 are painted in a dark color. Then, the method of attaching the light-colored decorative board 33 to the hanging rib 35 individually may be used. In this case, the drooping rib 35 is not required to have the same width as the decorative plate 33 but may have a shaft shape that can support the decorative plate 33, and the ventilation resistance of the opening 31 through which air passes is further reduced, and the suction efficiency is improved. It will be.

As shown in FIG. 3, the suction grill 30 includes a light source at least at a part of the decorative plate 33. The light source is preferably an LED 50 and is arranged so that one LED 50 is provided on one decorative plate 33. The LED 50 may be arranged on any decorative plate 33, but in the case of the decorative plate 33 at the corner, the lead wire connecting the LED 50 and the main unit 10 can be easily placed on the peripheral portion 32, and on the front surface of the peripheral portion 32. Since it is close to the display printing unit 37 to be provided, it is easy to understand.
Since the back side of the decorative plate 33 is configured to be dark, the LED 50 provided on the decorative plate 33 has a dark background, and each one rises into the dark color and emits light and is visually recognized. As a display unit, it is easy to see and understand.

1: Ceiling embedded air conditioner 10: Main unit 12: Fan motor 13: Turbo fan 14: Bell mouth 20: Cosmetic panel 21: Suction port 30: Suction grill 31: Opening 32: Peripheral portion 33, 331: Decoration Plates 34, 341, 342: connecting rib 35: hanging rib 36: air intake 37: display printing unit 40: filter 50: LED

Claims (3)

In a ceiling-embedded air conditioner comprising a main body unit and a decorative panel attached to the lower part of the main body unit, and having a suction grille that is detachably attached to a suction port opened in the center of the decorative panel.
The suction grill includes a frame-shaped peripheral edge, an opening in the frame of the peripheral edge, an opening side wall erected on the opening side of the peripheral edge, and a front surface and a surface of the peripheral edge in the opening. A plurality of decorative plates arranged in one, a connecting rib that is arranged on the back side of the decorative plate in the opening and bridges the facing side of the opening side wall, and the decorative plate is connected to the decorative plate depending from the connecting rib. A ceiling-embedded air conditioner characterized by comprising hanging ribs.   2. The ceiling-embedded air conditioner according to claim 1, wherein the suction grill is configured so that at least the peripheral edge and the front side of the decorative plate are light in color, and the connecting rib and the hanging rib are dark in color. Machine.   The ceiling-embedded air conditioner according to claim 1 or 2, wherein a light source is provided on at least a part of the decorative plate.

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