JP4658552B2 - Embedded ceiling air conditioner - Google Patents

Description

  The present invention has a unit main body embedded in a ceiling of a conditioned room and containing a heat exchanger and a blower in a substantially box-shaped casing, and a blowout duct is selectively connected to the casing of the unit main body. The present invention relates to a ceiling-embedded air conditioner.

2. Description of the Related Art Conventionally, a ceiling-embedded air conditioner that has a unit main body that is embedded in a ceiling of a conditioned room and contains a heat exchanger and a blower in a substantially box-shaped housing is known.
This type of ceiling-embedded air conditioner has a configuration in which a decorative panel having a suction port and an air outlet is attached, and conditioned air heat-exchanged by a heat exchanger is blown out from the air outlet of the decorative panel, or a unit There is a configuration in which a duct port is provided on a side surface of the casing of the main body, and conditioned air is blown out through a blowing duct connected to the duct port.
Some air conditioners having this blowout duct include a rotatable disk disposed at the duct opening, and the volume of air to the blowout duct can be adjusted by this disk (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 7-22344

However, in the configuration in which the air volume adjusting disk is arranged at the duct opening, there are problems that the number of parts increases and the assembly becomes complicated.
By the way, in recent years, in a ceiling-embedded air conditioner equipped with a decorative panel having a suction port and a blower outlet, a blower duct is connected according to a user's request, and from both the blower duct and the suction port of the decorative panel. Alternatively, there is a demand for one that can blow out conditioned air from either one. In this case, in this ceiling-embedded air conditioner, it is possible to make it easier to adjust the air volume when the blowout duct is connected so that it can be easily applied to the retrofit of the blowout duct. More desired.

  Therefore, an object of the present invention is to provide a ceiling-embedded air conditioner that can easily adjust the air volume to the blowout duct without increasing the number of parts even when the blowout duct is retrofitted. .

In order to solve the above-mentioned problems, the present invention provides a unit body embedded in a ceiling of a conditioned room and containing a heat exchanger and a blower in a substantially box-shaped housing, and attached to the ceiling surface. A ceiling-embedded air conditioner in which a blowout duct is selectively connected to the casing, and a surface to be connected to the blowout duct in the casing is selectively connected to the blowout duct. Knockout holes are formed at intervals along edges of a plurality of planned opening openings that can communicate with each other , and the plurality of planned opening openings are provided for conditioned air supplied to the blowout duct and the blowout opening of the decorative panel. Duct scheduled openings (D2, D4) that increase the distribution ratio on the outlet side, and the duct planned openings (D2, D4) are opened together to increase the distribution ratio of the conditioned air on the outlet duct side. Other duck A predetermined opening (D1, D3), and the outlet duct has an opening communicating with the predetermined duct opening (D2, D4) and the other predetermined duct opening (D1, D3). A flange extending to the inside and pin-coupled to the housing is provided on the part, and the flange is hooked on the lower edge of the planned duct opening (D2, D4) to the duct opening side of the blowing duct A hooking member is provided which floats and makes it possible to align the connection position of the blowing duct .

Further, according to the present invention, in the above configuration, a part of the knockout hole along the edge of the scheduled duct (D2, D4) is along the edge of the other scheduled duct (D1, D3) . A part of the knockout hall is also used. Further, in the above configuration, the present invention is characterized in that a heat insulating material is disposed inside the housing, and the heat insulating material prevents outside air from entering the housing through the knockout hole. And

  In the present invention, the knockout holes along the edges of the plurality of opening openings that can be selectively communicated with the blowout duct are formed on the planned connection surface of the blowout duct in the housing at intervals, so that the air volume to the blowout duct Compared with the conventional one provided with a disk for adjustment, the air volume to the blowout duct can be easily adjusted without increasing the number of parts, and retrofitting of the blowout duct is facilitated.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an external configuration of a ceiling-embedded air conditioner (hereinafter referred to as an air conditioner) 1 according to the present embodiment, and FIG. 2 is a cross-sectional view. The air conditioner 1 includes a unit body 10 that houses the blower 2 and the heat exchanger 3, and a decorative panel 20 that is fixed below the unit body 10 with screws.
The unit main body 10 has a box-shaped housing 11 made of sheet metal, and a plurality of suspension fittings connected to a suspension bolt (not shown) attached to a ceiling beam on the outer wall surface of the housing 11. 12 is provided, and the unit body 10 is arranged in the ceiling space of the conditioned room by the hanging metal fitting 12.

The decorative panel 20 has a substantially rectangular external shape larger than the casing 11 of the unit main body 10 and has a ceiling so as to close the ceiling hole 5 when the unit main body 10 is inserted into the ceiling 4 as shown in FIG. 4, a suction port 21 for sucking air in the conditioned room is formed along one side edge in the longitudinal direction of the decorative panel 20, and an air outlet is formed along the other side edge. 22 is formed. A suction grille 24 that supports the filter 23 is detachably disposed at the suction port 21 of the decorative panel 20, and a louver 25 that extends in the width direction of the decorative panel 20 is disposed at the outlet 22 of the decorative panel 20. Has been. The louver 25 is supported so as to be rotatable about a shaft 26 by driving a motor (not shown).
Further, as shown in FIG. 1, the decorative panel 20 includes a detachable side panel 27 at a position facing the hanging bracket 12 of the housing 11. When the side panel 27 is removed, the hanging bracket 12 is exposed. The operator can adjust the height of the unit body 10 from the room.

  As shown in FIGS. 2 and 3, the unit main body 10 is provided with a partition plate 32 that partitions the internal space of the housing 11 into a machine chamber 30 and a heat exchange chamber 31. The electrical box 6 is disposed, and the heat exchanger 3 and the refrigerant pipe 7 connected to the heat exchanger 3 are disposed in the heat exchange chamber 31. The refrigerant pipe 7 constitutes a part of a refrigerant feed pipe for sending refrigerant supplied from an outdoor unit (not shown) to the heat exchanger 3 and a refrigerant return pipe for returning the refrigerant circulated through the heat exchanger 3 to the outdoor unit. ing.

  The blower 2 includes two fan units 36 that accommodate the multi-blade fans 35 and motors 37 that rotationally drive the multi-blade fans 35 of the respective fan units 36, and drive signals from a control board accommodated in the electrical box 6. As shown in FIG. 2, the motor 37 is driven to suck the air in the conditioned room through the suction port 21 of the decorative panel 20 and direct the room air cleaned by the filter 23 toward the heat exchange chamber 31. And blow.

  The heat exchanger 3 is a fin-tube heat exchanger, and is disposed obliquely (inclined) in the heat exchange chamber 31 in order to secure a large heat exchange area. Under the heat exchanger 3, a drain pan 38 made of expanded polystyrene is installed to prevent the condensed water from the heat exchanger 3 from leaking into the conditioned room, and the drain pan 38 insulates the heat exchange chamber 31. Also serves as a part of heat insulating material. In addition to the drain pan 38, the heat exchange chamber 31 is insulated by a foamed polystyrene heat insulating material 40 arranged along the inner wall surface of the housing 11.

  With this configuration, in the air conditioner 1, the indoor air in the conditioned room is blown into the unit body 10 from the suction port 21 of the decorative panel 20 through the filter 23 by the blower 2 as indicated by an arrow in FIG. 2. After being sucked in, blown out toward the heat exchanger 3, and after heat exchange in the heat exchanger 3, it collides with the inner wall surface 10 </ b> A of the unit body 10 and changes its direction in a substantially orthogonal direction. It blows out from the blower outlet 22. As a result, the room air circulates through the heat exchanger 3 in the unit main body 10 and the room temperature can be adjusted (indoor air conditioning).

  By the way, in this air conditioner 1, a blowout duct 50 (FIG. 5) is selectively connected to the side wall 11 </ b> X of the housing 11 of the unit main body 10 according to a user's request or the like, and heat exchange is performed through this blowout duct 50. The conditioned air heat-exchanged in the vessel 3 can be blown out into the conditioned room. In the present embodiment, the outer wall surface (scheduled connection surface) 11A of the side wall 11X to which the blowing duct 50 is connected is knocked out along the edge of the scheduled duct opening D of the blowing duct 50 as shown in FIG. 60 are formed at intervals, and by cutting the members between the knockout holes 60 so as to connect the knockout holes 60, the duct port D0 of the blowout duct 50 can be easily formed.

  More specifically, in the present embodiment, as the planned duct opening D, as shown in FIG. 4, four vertical planned duct openings D1 to D4 in two rows and two horizontal rows are assumed, A narrow hole-shaped knockout hole 60 is formed at an interval along the edge of each duct planned opening D1 to D4. Here, for the planned duct openings D1 and D2 arranged vertically, the knockout hole 60 along the lower edge portion of the upper planned duct opening D1 also serves as the knockout hole 60 along the upper edge portion of the lower planned duct opening D2. As a result, the number of knockout holes 60 can be reduced and the processing of the knockout holes 60 can be reduced compared to the case where the knockout holes 60 are formed so that the planned duct openings D1 and D2 are separated from each other. can do.

  In addition, with respect to the planned duct openings D3 and D4 arranged vertically, the knockout hole 60 along the edge of one duct planned opening D3 is formed at the edge of the other planned duct opening D4 in the same manner as the planned duct openings D1 and D2. The knockout hole 60 along the line is also used, and the processing work of the knockout hole 60 is reduced. In addition, since the heat insulating material 40 is disposed inside the knockout holes 60 as described above, the heat insulating material 40 prevents outside air from entering the unit main body 10 through the knockout holes 60. Insulation in the unit body 10 is maintained.

  FIG. 5 is a perspective view showing an example of the blowout duct 50. The blowout duct 50 includes a metal cylinder 51 connected to the unit body 10 of the air conditioner 1, a metal cylinder 52 communicated with an opening (blowout duct air outlet) provided in the ceiling, etc. These cylinders 51 and 52 are connected to each other and are roughly configured from a connection body 53 formed of a flexible material. With this connection body 53, the direction of one cylinder 53 is set to an arbitrary direction with respect to the other cylinder 52. It can be changed. A flange 54 extending inwardly is provided in the opening 51A of the cylindrical body 51. A plurality of pin holes 55 are provided in the flange 54, and the hooking member 56 is pinned at intervals. It is connected. The hooking member 56 is formed by bending a metal plate member into a substantially U-shape, and the U-shaped portion is formed so as to be hooked on the unit main body 10. The hooking member 56 is configured to temporarily support the outlet duct 50 opening 51 </ b> A side at the mounting position of the unit body 10 by hooking the U-shaped portion to the unit body 10.

  6A and 6B are partial cross-sectional views showing a state in which the blowing duct 50 is connected to the unit main body 10 of the air conditioning apparatus 1. As shown in these drawings, when connecting the outlet duct 50 to the unit main body 10, any one or more of the scheduled duct openings D1 to D4 of the unit main body 10 are opened as the duct opening D0, and the duct opening D0 is opened. After cutting off the part of the heat insulating material 40 that has been blocked to allow the duct port D0 and the heat exchange chamber 31 to communicate with each other, the unit body 10 is further connected to the planned connection surface 11A corresponding to the pin hole 55 of the blowout duct 50. A female screw hole is formed at a position where the blow duct 50 is pinned, and the blow duct 50 is pin-fastened to the female screw hole via the pin insertion portion 55, whereby the blow duct 50 is connected to the unit body 10. In this case, when the planned duct opening D1 is the duct opening D0 in order to equalize the amount of air blown out from the blowing duct 50, it is preferable that the planned duct opening D3 is also the duct opening D0. When the port D2 is the duct port D0, the planned duct port D4 is also preferably the duct port D0.

  Further, as described above, when connecting the blowing duct 50 to the unit body 10, the hooking member 56 of the blowing duct 50 is pulled out, and the heat insulating cushion material 57 is attached to the lower edge portion D0L of the duct port D0 of the unit body 10. By hooking them, the duct opening side of the blowout duct 50 is brought into a floating state, and in this state, the blowout duct 50 is aligned and pin-connected. For this reason, if the duct port side of the blowing duct 50 is lifted once, it can be temporarily locked in a state where the duct port side is floated by the hooking member 56, and the connecting operation of the blowing duct 50 can be facilitated. . The heat insulating cushion material 57 is formed of a heat insulating material having a cushioning property that fills a gap between the blowing duct 50 and the unit main body 10, and is formed of, for example, a polyethylene material. By inserting the heat insulating cushion material 57 between the blowout duct 50 and the unit main body 10, the gap between the blowout duct 50 and the unit main body 10 is completely blocked, and sufficient heat insulation measures are taken. .

As shown in FIG. 6A, when only the duct scheduled openings D2 and D4 of the unit body 10 are set as the duct opening D0, the amount of air supplied to the blowing duct 50 can be reduced, so that the blowing duct 50 and the blowing outlet of the decorative panel 20 are provided. The distribution ratio of the conditioned air supplied to the air outlet 22 can be increased on the air outlet 22 side.
On the other hand, as shown in FIG. 6B, when all the planned duct openings D1 to D4 of the unit main body 10 are the duct openings D0, the opening area of the duct opening D0 can be made larger than in the case of FIG. The amount of air to be supplied can be increased, and the distribution ratio of the conditioned air supplied to the outlet duct 50 and the outlet 22 of the decorative panel 20 can be increased on the outlet duct 50 side.

As described above, in this embodiment, knockout holes 60 along the edges of the plurality of scheduled ducts D1 to D4 are formed in the housing 11 at intervals, and the scheduled ducts D1 to D4 are selected. By making the duct opening D0 open, the amount of air supplied to the blowout duct 50 can be adjusted, and the distribution ratio of the conditioned air supplied to the blowout duct 50 and the blowout port 22 of the decorative panel 20 can be variously adjusted. be able to.
Further, when the duct opening D0 is formed, it is only necessary to selectively cut between the knockout holes 60 formed in the housing 11, and therefore, compared to the conventional one having a disk for adjusting the air volume to the blowout duct. Thus, the air volume to the blowout duct can be easily adjusted without increasing the number of parts, and retrofitting of the blowout duct is easy.
Moreover, the air conditioning apparatus 1 which concerns on this embodiment is comprised so that the blower outlet 22 of the decorative panel 20 may be obstruct | occluded with a predetermined | prescribed obstruction | occlusion member, and the conditioned air will be blown out only from the blower duct 50, when the blower duct 50 is connected. It is also possible.

  The embodiment of the ceiling-embedded air conditioner according to the present invention has been described above. However, the present invention is not limited to this, and various modifications can be made. For example, in the above-described embodiment, the unit main body 10 is illustrated with respect to the case where the knockout hole 60 that allows easy opening of the four scheduled ducts D1 to D4 in two rows and two rows is formed in advance. The number and shape of the plurality of scheduled duct openings may be arbitrary. For example, as shown in FIG. 7, knockout holes corresponding to the four scheduled ducts D1 to D4 in the horizontal direction may be formed symmetrically. In this case, when the blowout air volume of the blowout duct 50 is reduced, the duct scheduled openings D2 and D3 may be set to the duct opening D0. When the blowout air volume is increased, all the planned duct openings D1 to D4 are opened. What is necessary is just to let it be the duct opening D0. The shape of the knockout hole is not limited to the narrow hole shape, and various hole shapes such as a round hole may be applied.

It is a perspective view which shows the external appearance structure of the ceiling-embedded air conditioning apparatus which concerns on this Embodiment. It is sectional drawing of the said air conditioning apparatus. It is a perspective view which shows the unit main body of the said air conditioning apparatus. It is a perspective view which shows the external appearance of a unit main body. It is a perspective view which shows an example of the blowing duct. (A) And (B) is a partial cross section figure which shows the state which connected the blowing duct to the unit main body, respectively. It is a perspective view which shows the external appearance of the unit main body with which it uses for description of a modification.

Explanation of symbols

1 Air conditioner (Embedded ceiling air conditioner)
2 Blower 3 Heat exchanger 4 Ceiling 6 Electrical box 7 Refrigerant piping 10 Unit body 11 Housing 11X Side wall 11A Outer wall surface (planned connection surface)
20 decorative panel 21 suction port 22 outlet 25 louver 31 drain pan 50 outlet duct 60 knockout hole D1 to D4 scheduled duct (scheduled opening)

Claims (3)

A unit body embedded in a ceiling of a conditioned room and housing a heat exchanger and a blower in a substantially box-shaped housing; and a decorative grille attached to the ceiling surface and having an air outlet and a suction port. In the ceiling-embedded air conditioner in which the outlet duct is selectively connected to
Forming knockout holes along the edges of a plurality of planned opening openings that can be selectively communicated with the blowing duct on the planned connection surface of the blowing duct in the casing ,
The plurality of scheduled openings are a scheduled duct opening (D2, D4) that increases the distribution ratio of the conditioned air supplied to the outlet duct and the outlet of the decorative panel on the outlet side, and the scheduled duct. Other duct scheduled ports (D1, D3) that are opened together with the ports (D2, D4) and increase the distribution ratio of the conditioned air toward the outlet duct side,
The blowout duct has an opening communicating with the scheduled duct opening (D2, D4) and the other scheduled duct opening (D1, D3). The opening extends inwardly to the casing. A flange that is pin-connected to the body is provided, and this flange can be hooked on the lower edge of the expected duct opening (D2, D4) to float the duct opening side of the outlet duct and align the connecting position of the outlet duct A ceiling-embedded air conditioner characterized in that a hook member is provided . A part of the knockout hole along the edge of the planned duct opening (D2, D4) may also be used as a part of the knockout hole along the edge of the other planned duct opening (D1, D3). The ceiling-embedded air conditioner according to claim 1, wherein the air conditioner is embedded in a ceiling. The heat insulating material is arrange | positioned inside the said housing | casing, This heat insulating material prevents that external air penetrate | invades in the said housing | casing through the said knockout hole, The Claim 1 or 2 characterized by the above-mentioned. A ceiling-embedded air conditioner.

Images