JP4271101B2 - Blowout grill device, blowout chamber device, and built-in type air conditioner using the same - Google Patents

Description

  The present invention relates to a blowout grill apparatus, a blowout chamber apparatus, and a built-in type air conditioner using the blowout grille apparatus, which are provided on a ceiling portion of a conditioned room and have a blowout grill having a blowout outlet for blowing out blown air into the conditioned room.

A blowout chamber having a blowout grill having a blowout opening for blowing out blown air to the conditioned room, a unit main body containing a heat exchanger and a fan, and blowout air from the unit main body. There is known a built-in type air conditioner having a blowout duct for supplying to a chamber. In this type of built-in type air conditioner, the air (conditioned air) exchanged in the unit body is blown out to the conditioned room through the blowout duct and the blowout chamber, so that the indoor unit is not exposed indoors, Optimum air conditioning can be achieved without compromising the beauty of As for the conventional blow grill, it is common that the wall surface which comprises a blower outlet is formed in the vertical surface or the inclined surface which continues uniformly (for example, refer patent documents 1, 2).
JP 2003-28489 A JP-A-11-201539

  However, in the conventional configuration, in the case of cooling operation, warm air in the conditioned room enters between the cold conditioned air blown from the blowout grill and the ceiling, and this warm air is cooled by the conditioned air and blown out grill. There was a risk of condensation.

  Accordingly, an object of the present invention is to provide a blowout grill device, a blowout chamber device, and a built-in type air conditioner using the blowout grill device that can suppress the occurrence of condensation on the blowout grill.

In order to solve the above-mentioned problems, the present invention has a resin decorative panel, a polystyrene foam thermal insulator disposed on the decorative panel, and a louver, which is installed on the ceiling of the conditioned room , and is harmonized. A blow-out grill having a blow-out opening for blowing out blow-out air in the chamber; and a wall panel constituting a wall surface of the blow-out opening is integrally formed on the decorative panel, and the blow-off wind toward the conditioned room is formed on the wall panel. A first surface that inclines so as to widen the opening of the road, and a second surface that is connected to the first surface via a stepped portion and inclines so as to further widen the opening of the blowing air passage, The step portion is a blowing grill device formed so as to be positioned between an extension line L2 on the peripheral front surface of the blowing grill and an extension line L3 on the rotation shaft of the louver. .

  According to the present invention, the first surface that inclines so as to widen the opening of the blowout air passage toward the conditioned room on the wall surface that forms the blowout port of the blowout grill, and the first surface via the stepped portion. As a result, a second surface that is inclined so as to further expand the opening of the blowing air passage toward the conditioned room is formed, so that the blowing air can be blown out to a position near the front surface of the blowing grill, It is possible to prevent warm air in the room to be conditioned from entering between the cool conditioned air thus formed and the ceiling, and to prevent dew condensation from occurring on the blowout grill.

In the above invention, before Symbol first surface, the stepped portion between the second surface may be configured to include a curved portion curved convexly upward.

Further, the present invention is a blowout chamber that is installed on the ceiling portion of the conditioned room and is connected to a unit body containing a heat exchanger and a fan via a blowout duct, and blows out blown air from the blowout duct from the blowout opening. A blower outlet that is attached to the blowout opening of the blowout chamber and has a resin decorative panel, a polystyrene foam thermal insulator disposed on the decorative panel, and a louver, and blows out blown air into the conditioned room. The decorative panel is integrally formed with a wall panel constituting the wall surface of the outlet, and the wall panel is inclined so as to widen the opening of the outlet air channel toward the conditioned room A first surface that is connected to the first surface via a stepped portion, and a second surface that is inclined so as to further widen the opening of the blowout air passage, and the stepped portion is formed on the blowout grill. Front edge An extension L2 of, wherein said a blowing chamber apparatus which is formed so as to be positioned between the extension line L3 of the louver rotational shaft.

  Moreover, the built-in type air conditioner comprised by the said blowing chamber apparatus, the unit main body, and the blowing duct may be sufficient.

  According to the present invention, a first surface that inclines so as to widen an opening of the blowout air passage toward the chamber to be conditioned is connected to a wall surface that forms a blowout port of the blowout grill, and the first surface via a step portion. Since the second surface inclined so as to further widen the opening of the blowout air passage toward the conditioned room is formed, the blown air can be blown out to a position near the front surface of the blowout grill and blown out from the blowout grill It is possible to prevent the warm air in the conditioned room from entering between the cold conditioned air and the ceiling, and to suppress the occurrence of condensation on the blowout grill

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a built-in type air conditioner according to the present invention, in which (A) is a side view showing a panel specification built-in type air conditioner, and (B) is a duct specification built-in type air conditioner. The panel specification built-in air conditioner 30 shown in FIG. 1A and the duct specification built-in air conditioner 40 shown in FIG. 1B both have a ceiling between the ceiling 32 and the ceiling plate 33 of the building 31. The unit 34 is suspended in the space 34 and has a unit main body 35, a blowout duct 36, a blowout chamber 48, and an electrical control box 37 for operation control.

  The unit main body 35 is configured such that a top plate 39 is fixed to an upper edge portion of four side plates 38 that are arranged opposite to each other and provided in a square frame shape, and a bottom plate 46 is fixed to a part of the lower edge portion. . Heat insulating materials are attached to the inner and outer surfaces of the side plate 38, the top plate 39, and the bottom plate 46. A suspension fitting 41 is fixed to the side plate 38 of the unit main body 35. The suspension fitting 41 is fixed to a suspension bolt 42 suspended from the ceiling 32 of the building 31, so that the panel specification built-in type air conditioner 30, duct The specification built-in type air conditioner 40 is configured to be suspended from the ceiling 32 of the building 31.

  Inside the unit main body 35, an indoor heat exchanger, a fan and a fan motor (not shown) are accommodated. The indoor heat exchanger is illustrated using a refrigerant pipe (liquid pipe) connected to the refrigerant pipe connection port 43 and a refrigerant pipe (gas pipe) connected to the refrigerant pipe connection port 44 shown in FIGS. Not connected to outdoor unit. The indoor heat exchanger in the unit main body 35 cools or heats the air sucked into the unit main body 35 by evaporation or condensation of the refrigerant guided from the outdoor unit. 45A indicates a drain pipe connection port, and 45B indicates a drain discharge port.

  A plurality of the blowout ducts 36 are extended from the unit main body 35, and one end of each of the blowout ducts 36 is fitted to a blowout outlet 47 that is integrally installed on one side plate 38 of the unit main body 35, and the other end. A blow-out chamber 48 is attached. The blowing chamber 48 is installed at an appropriate position on the ceiling board 33. As will be described later, the room air is sucked into the unit body 35 by the rotation of the fan in the unit body 35, and the air heat-exchanged by the indoor heat exchanger is blown out from the blowing chamber 48 to the conditioned room through the blowing duct 36. Is done.

  In the panel specification built-in air conditioner 30 shown in FIGS. 1A and 2, a ceiling panel 49 is fitted in the lower opening of the unit body 35. The ceiling panel 49 includes a suction plate 50 at a central position, and sucks room air through a gap with the suction plate 50 and introduces it into the unit body 35. 1 (B) and FIG. 3 is a side plate 38 of the unit main body 35, which is a side plate (that is, a duct specification built-in) facing the side plate 38 on which the air outlet 47 is installed. A suction opening (not shown) is formed in the back plate 38B) of the type air conditioner 40, and a single suction duct 52 is usually connected to the side plate 38 (back plate 38B) via, for example, a filter box 51. . A suction grill 53 is fitted to one end of the suction duct 52, and the suction grill 53 is installed at an appropriate position on the ceiling plate 33. Indoor air is taken in from the suction grille 53 and sucked into the unit main body 35 through the suction duct 52. The lower opening of the unit main body 35 is closed by a main body lid 77.

  As shown in FIG. 4, the blowing chamber 48 is paired with a blowing grill 55, and a hanging bolt 42 suspended from the ceiling 32 of the building 31 is attached to a hanging metal fitting 48 </ b> A fixed to the side plate of the blowing chamber 48. It is installed behind the ceiling by hooking. The conditioned air sent through the blowout duct 36 flows as shown by arrows in FIG. 5, and is blown out into the conditioned room through the two blowout ports 55 </ b> A of the blowout grill 55.

  As shown in FIG. 6 (A), the blowout chamber 48 is disposed on the inside of the exterior member 81 made of a steel plate formed in a substantially box shape, and inside the exterior member 81, and on the inside thereof, guides the blown air. An air path forming body 83 made of styrene foam in which an air path 83A (FIG. 5) is formed, and a substantially plate-shaped steel plate lid member 85 covering the air path forming body 83 are configured. These are assembled as shown in FIG. 6B, and then the reinforcing plate 87 and the duct connection flange 90 are screwed as shown in FIG. In this configuration, since the blowout chamber 48 is composed of three parts including the exterior member 81, the air passage forming body 83, and the lid member 85, the number of parts is greatly reduced as compared with the conventional one. Man-hours are reduced and manufacturing costs are greatly reduced.

  As shown in FIGS. 5 and 6, the air path forming body 83 is divided into two forming bodies 83B and 83C, and a projection 89 that contacts either the exterior member 81 or the lid member 85 is formed. The protrusions 89 are integrally formed with all of the outermost peripheral edge portions of the respective surfaces of the respective formed bodies 83B and 83C and all of the peripheral edge portions of the air holes 83D of the one formed body 83B. With this configuration, since the contact area between the respective formed bodies 83B and 83C and the exterior material 81 or the lid material 85 is reduced, the respective formed bodies 83B and 83C are largely expanded or contracted due to a sudden temperature change or the like. Even if it does, the generation | occurrence | production of the dew condensation to the exterior material 81 or the lid | cover material 85 will be suppressed while the generation | occurrence | production of the squeak noise is suppressed, and the wraparound of the air which leaked from the mating surface of each formation body 83B, 83C is blocked | prevented. Is suppressed.

  In addition, an air hole 83D communicating with the blowout duct 36 is opened in one of the air passage forming bodies 83B, and an air volume adjusting plate 93 is disposed in the lid member 85 at a position corresponding to the air hole 83D. ing. The air volume adjusting plate 93 is formed by a remaining portion of the lid 85 cut out by a substantially arc-shaped notch 93A and a substantially linear notch 93B. The air volume adjusting plate 93 is a pair of connecting portions 93C. It is connected to the lid member 85 via the via.

  In this case, the air volume is adjusted by bending the air volume adjusting plate 93 around the pair of connecting portions 93C in the direction of the arrow X so as to be pushed into the air holes 83D of the air path forming body 83B. If the air volume adjusting plate 93 is largely bent, the air volume increases, and conversely, if the bending amount is reduced, the air volume decreases. In this configuration, since the air volume adjusting plate 93 is formed by the remaining portion of the lid member 85 cut out by the substantially arc-shaped cutout 93A and the substantially linear cutout 93B, an extra member is required. Therefore, the air volume adjusting plate 93 can be easily formed.

  Further, on the other forming body 83C of the air passage forming body 83, a wind guide surface 83E is formed on the inner wall surface facing the air hole 83D, and this guide surface 83E gradually moves toward the blowout opening 86. The amount of protrusion increases, and it is formed to be the highest at a position that is slightly closer to the blowing opening 86 side than the extension line L at the lowest point of the air hole 83D, that is, at a position 83F. That is, the guide surface 83 </ b> E is formed on an inclined surface whose protruding amount increases as it approaches the blowing duct 36. In this configuration, since the formed body 83C is made of polystyrene foam, even if the wind guide surface 83E has a complicated shape, it is compared with the conventional structure in which the heat guide is laminated to form the wind guide surface. Thus, the profile can be integrally molded very accurately and easily. A blowing grill 55 is attached to the blowing opening 86 of the air passage forming body 83.

  FIG. 7 is an exploded perspective view of the blowing grill 55, and FIG. 8 is a cross-sectional view of the blowing grill 55. The blow-out grill 55 includes a resin decorative panel 60, a polystyrene foam heat insulator 61 and a louver 62 that are stacked on the decorative panel 60. The decorative panel 60 is integrally formed with a wall panel 63 constituting the wall surfaces of the two air outlets 55A, and a central frame 64 extending in the longitudinal direction of the panel 60 is provided between the air outlets 55A. The heat insulator 61 is formed by integrally molding a first heat insulator 65 disposed on the wall surface panel 63 and a second heat insulator 66 disposed on the central frame 64.

  In this configuration, the second heat insulator 66 extends in the longitudinal direction of the central frame 64 and is formed in an upward convex cross-sectional shape (substantially triangular cross-sectional shape in the present embodiment). In addition to functioning as a blowout air passage partition body, it is possible to function as a blowout air passage partition body that partitions the blowout air passages 55F. The louver 62 is pivotally supported at both ends in each blowing air passage 55F formed by the wall surface panel 63, and is used for adjusting the blowing direction of the conditioned air blown out from each blowing outlet 55A.

  The wall surface panel 63 is connected to the first surface 63A, which is inclined so as to widen the opening of the blowing air passage 55F toward the room to be conditioned, and the first surface 63A via a step portion 63B. A second surface 63C that is inclined so as to further widen the opening of 55F is formed. As shown in FIG. 9, the stepped portion 63 </ b> B is in a direction substantially parallel to the installation surface (ceiling surface in the present embodiment) T of the blowing grill 55 from the first surface 63 </ b> A, and blows the second surface 63 </ b> C into the blowing air. After being bent in a direction (Y direction) that further widens the opening of the path 55F, it is formed in a shape that is connected to the second surface 63C via a curved portion 63D that is convexly curved upward. The stepped portion 63B is positioned at a substantially intermediate height (on the extension line L4) between the extension line L2 of the peripheral front surface 55B of the blow grill 55 and the extension line L3 on the rotation shaft 62A of the louver 62. The height from the peripheral side front surface 55B of the blowing grill 55 is set to a value T1. Here, the inclination of the second surface 63C is substantially the same as or slightly larger than the inclination of the first surface 63A.

  By the way, in the case of cooling operation, if warm air in the conditioned room enters between the cold air blown out from each blower outlet 55A and the ceiling part, this warm air is cooled by the blown air and dew condensation is generated on the blowout grill 55. May occur.

  In this configuration, as described above, the wall surface forming the outlet 55A is inclined to the first surface 63A and the first surface 63A inclined so as to widen the opening of the outlet air passage 55F toward the room to be conditioned. The second wall 63C is connected to the stepped portion 63B and is inclined so as to further widen the opening of the blowout air passage 55F. By forming in this way, the wall surface forming the blowout port is uniformly formed. It is confirmed that the blown air flowing through the blowout air passage 55F is blown out to a position near the peripheral front surface 55B of the blowout grill 55, as shown by an arrow α, as compared with the conventional one having a continuous inclined surface. did it. Accordingly, it is possible to prevent warm air in the conditioned room from entering between the cold air blown out from each of the outlets 55A and the ceiling portion, and to suppress the occurrence of condensation on the outlet grill 55. it can. Further, since the wall surface panel 63 having the first surface 63A, the stepped portion 63B, and the second surface 63A is integrally formed as a decorative panel of the blowout grill, the profile can be integrally and accurately formed. It is.

Here, FIGS. 10A and 10B are views showing a modification of the blowing grill 55, and FIG. 10A shows the position of the stepped portion 63B on the inlet side of the blowing air passage 55F, that is, the stepped portion. In this configuration example, 63B is provided at a position on the extension line L3 on the rotation shaft 62A of the louver 62, and the height from the peripheral side front surface 55B of the blowing grill 55 is set to a value T2 (T2> T1). In FIG. 10B, the height of the stepped portion 63B from the outlet side of the blowing air passage 55F (the outlet 55A side), that is, the peripheral front surface 55B of the blowing grill 55 is set to a value T3 (T3 <T1). It is an example of a structure at the time of setting. That is, the relationship between the above values is T3 <T1 <T2.
When actually comparing the three types of blowing grills 55 of FIGS. 9, 10 </ b> A, and 10 </ b> B, the stepped portion 63 </ b> B is in the point of blowing the blowing air to a position near the peripheral front surface 55 </ b> B of the blowing grill 55. As for the height from the front surface of the blowout grill 55, it was confirmed that the value T1 was the best, the value T3 was the next, and the value T2 was the next. That is, when the height of the stepped portion 63B is set to the value T1, it is possible to suppress the occurrence of condensation on the blowing grill 55 most.

  Further, when the stepped portion 63B is provided with the curved portion 63D and the case where the curved portion 63D is not provided, the point where the blown air is blown out to the position near the peripheral front surface 55B of the blowout grill 55 is described. It was also confirmed that the one provided with the curved portion 63D was better.

FIG. 11 is a cross-sectional view showing another modification of the blow grill.
This blowing grill 551 differs from the blowing grill 55 shown in FIG. 9 only in the inclination of the second surface 63C1. That is, the inclination of the second surface 63C1 of the blow grill 551 is formed to be larger than the inclination of the first surface 63A. According to this configuration, with respect to the point at which the blown air is blown out to the position near the peripheral front surface 55B of the blowout grill 55, the blown air is much closer to the peripheral front surface 55B than in the case of the blowout grill 55 shown in FIG. Was able to be confirmed. Therefore, in this way, the inclination of the second surface 63C1 is made larger than the inclination of the first surface 63A, so that it is possible to further suppress dew condensation on the blowing grill 551. In addition, although illustrated about the case where the height of the level | step-difference part 63B of this blowing grill 551 is set to value T1, you may set to the said value T2 and value T3, and may change suitably.

  Each of the above configurations can be applied to both a panel specification built-in air conditioner and a duct specification built-in air conditioner. The above-described embodiment is merely one aspect of the present invention, and can be arbitrarily modified within the scope of the present invention. For example, in the above-described embodiment, the case where the present invention is applied to the blowout grill attached to the blowout chamber has been described as an example. However, the ceiling-embedded air conditioner including the blowout grill disposed on the ceiling of the conditioned room, etc. The present invention can be widely applied to the blowout grill apparatus.

1 shows an embodiment of a built-in type air conditioner according to the present invention, in which (A) is a side view of the panel specification built-in type air conditioner, and (B) is a side view of the duct specification built-in type air conditioner. It is a perspective view which shows a part of panel specification built-in type air conditioner of FIG. 1 (A). It is a perspective view which shows a part of duct specification built-in type air conditioner of FIG. 1 (B). It is a perspective view of a blowing chamber. It is sectional drawing of a blowing chamber. (A) is an exploded perspective view of the blowing chamber, and (B) is a perspective view thereof. It is a disassembled perspective view of a blowing grill. It is sectional drawing of a blowing grill. It is a partial cross section figure of a blowing chamber. (A) (B) is a figure which shows the comparative example of a blowing grill, respectively. It is a partial cross section figure which shows the modification of a blowing grill.

Explanation of symbols

30 Panel specification built-in type air conditioner 35 Unit main body 36 Blowing duct 40 Duct specification built-in type air conditioner 48 Blowing chamber 55,551 Blowing grill 55A Blowing outlet 55B Peripheral side front 55F Blowing air path 60 Cosmetic panel 61,65,66 Thermal insulation Body 62 Louver 63A First surface 63B Stepped portion 63C Second surface 63D Curved portion 83 Air path forming body

Claims (4)

A blowout installed on the ceiling of the room to be conditioned, having a resin decorative panel, a polystyrene foam thermal insulator disposed on the decorative panel, and a louver, and having a blowout outlet for blowing air into the room to be conditioned With a grill,
A wall surface panel constituting a wall surface of the outlet is integrally formed on the decorative panel, and the wall surface panel has a first surface inclined so as to widen the opening of the blowout air passage toward the conditioned room, A second surface that is connected to the first surface via a stepped portion and is inclined so as to further widen the opening of the blowing air passage is formed.
The blowout grill device according to claim 1, wherein the stepped portion is formed between an extension line L2 on a peripheral side front surface of the blowout grill and an extension line L3 on a rotation shaft of the louver .   The blow grill apparatus according to claim 1, wherein the stepped portion between the first surface and the second surface includes a curved portion that is convexly curved upward. A blowout chamber that is installed on the ceiling of the conditioned room and that is connected to a unit main body containing a heat exchanger and a fan via a blowout duct and blows out blown air from the blowout duct from a blowout opening, and a blowout of the blowout chamber A resin-made decorative panel attached to the opening, a foamed polystyrene thermal insulator disposed on the decorative panel, and a louver, and a blow-out grill having a blow-out opening that blows blow-out air into the conditioned room. ,
A wall surface panel constituting a wall surface of the outlet is integrally formed on the decorative panel, and the wall surface panel has a first surface inclined so as to widen the opening of the blowout air passage toward the conditioned room, A second surface that is connected to the first surface via a stepped portion and is inclined so as to further widen the opening of the blowing air passage is formed.
The blowout chamber apparatus characterized in that the stepped portion is formed between an extension line L2 on a peripheral front surface of the blowout grill and an extension line L3 on a rotation shaft of the louver . A built-in type air conditioner comprising the blowout chamber device according to claim 3 , a unit main body, and a blowout duct.

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