JP3895885B2 - Air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner that is installed in a ceiling portion of a building, includes a heat exchanger and a fan inside, and guides and blows out the heat-exchanged air to an appropriate position in a room through a blowout duct.
[0002]
[Prior art]
In general, a built-in type air conditioner in which a blowout duct is extended in a unit body that is installed in a ceiling space of a building and accommodates an indoor heat exchanger and a fan is known. In such a built-in type air conditioner, the air heat-exchanged by the indoor heat exchanger can be guided to the appropriate position in the room through the blowout duct and blown into the room, so that it is optimal without impairing the aesthetics of the room. Air conditioning can be realized.
[0003]
Conventionally, this type of built-in type air conditioner includes a panel specification built-in type air conditioner 10 and a duct specification built-in type air conditioner 20, as shown in FIG. The panel specification built-in type air conditioner 10 (FIG. 8A) is provided on the lower surface of the unit body 11 and sucks room air from the ceiling panel 12 installed on the ceiling plate. Arranged inside the main body 11. On the other hand, the duct specification built-in type air conditioner 20 (FIG. 8B) is provided with a suction duct 22 on the back surface of the unit main body 21 and sucks indoor air through the suction duct 22. It is installed on the outer surface of the side plate of the unit main body 21.
[0004]
By the way, the blowout duct is inserted into the blower outlet 14 fixedly installed on the unit main bodies 11 and 21 and extended to the unit main bodies 11 and 21.
[0005]
As shown in FIG. 9, the air outlet 14 has a cylindrical duct insertion portion 15 into which an air outlet duct is inserted, and a ring shape that contacts the unit main bodies 11 and 21 and is fixed to the unit main bodies 11 and 21. And a flange portion 16. A heat insulating material 17 (FIG. 10) for preventing condensation is attached to the outer surface of the flange portion 16.
[0006]
[Problems to be solved by the invention]
The duct insertion portion 15 and the flange portion 16 are made of a metal plate and are joined by welding or the like. Therefore, the heat conductivity of the duct insertion part 15 and the flange part 16 in the blower outlet 14 is high, and a large amount of dew condensation tends to occur around the flange part 16. For this reason, the said heat insulating material 17 for dew condensation prevention has a thick-walled structure. Moreover, since this heat insulating material 17 is stamped and formed into a ring shape like the flange portion 16, the yield is poor. From these things, the manufacturing cost of the blower outlet 14 will become high.
[0007]
The object of the present invention has been made in consideration of the above-mentioned circumstances, and can reduce the cost of the blowout port, reduce the number of heat insulating materials to prevent dew condensation stuck to the blowout port, and paste the heat insulating material. An object of the present invention is to provide an air conditioner that can reduce the work man-hours and improve the workability of the heat insulating material attaching work.
[0008]
[Means for Solving the Problems]
The invention according to claim 1 is an air conditioner in which a blowout duct is extended through a blowout port on a unit body that is installed on a ceiling portion of a building and accommodates a heat exchanger and a fan. A heat insulating material is affixed to the outer surface of the unit main body, the air outlet is made of a resin material, and fixed in contact with the unit main body and a cylindrical duct insertion portion into which the air outlet duct is inserted. A ring-shaped flange portion that is integrally formed, and the shape of the outer surface of the flange portion is formed into a curved surface shape to which a single heat insulating material is adhered while being bent along the outer surface. In addition, a rib that bites into and comes into contact with the heat insulating material adhered to the outer surface of the unit main body is provided on the inner surface facing the outer surface of the flange portion.
[0010]
According to a second aspect of the present invention, in the first aspect of the present invention, the outer peripheral front end portion of the duct insertion portion of the air outlet has an insertion surface portion provided with an inclined surface that decreases in diameter toward the front end, and a blowout duct. And an engaging portion that is engaged with the inner surface of the substrate.
[0011]
The invention described in claim 1 has the following action.
[0012]
Since the outer peripheral edge of the flange part to which the heat insulating material is attached has a curved surface shape, a single heat insulating material is applied to the outer surface of the flange part while bending it along the curved surface. I can wear it. For this reason, since the number of heat insulation materials stuck on the flange part outer surface of one blower outlet can be made into one piece, since a heat insulation material can be stuck on the flange part outer surface of one blower outlet in one process, Moreover, the workability | operativity of heat insulating material sticking work can be improved.
[0013]
Moreover, since the blower outlet was comprised with the resin material, the cost of a blower outlet can be reduced. Furthermore, since the blower outlet is made of a resin material, the thermal conductivity of the blower outlet is lowered, and dew condensation occurring around the flange portion of the blower outlet can be suppressed. For this reason, the heat insulation for dew condensation stuck to the outer surface of a flange part can be thinned, and the cost of a blower outlet can be reduced.
[0015]
Furthermore, since the rib is projected on the inner surface that contacts the unit body in the flange portion of the outlet, the strength of the flange portion can be increased and the rigidity of the outlet can be improved. Thinning can also be realized.
[0016]
In addition, since the ribs on the inner surface of the flange portion of the air outlet come into contact with the unit main body, the contact surface pressure between these ribs and the unit main body increases, and the heat insulating material adhered to the outer surface of the unit main body Ribs bite in. As a result, the sealing performance between the flange portion of the air outlet and the unit body can be improved.
[0017]
The invention according to claim 2 has the following effects.
[0018]
The insertion surface portion is formed with an insertion surface portion provided with an inclined surface that is reduced in diameter toward the distal end, and an engaging portion that is engaged with the inner surface of the blowout duct, at the outer peripheral front end portion of the duct insertion portion of the air outlet. With the operation, the blowout duct can be easily inserted into the duct insertion portion of the blowout port. Moreover, the latching | locking part latches on the inner surface of the blowing duct inserted in the duct insertion part, and can prevent the dropout from the blower outlet of a blowing duct.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0020]
FIG. 1 shows a first embodiment of a built-in type air conditioner to which an air conditioner according to the present invention is applied, in which (A) is a panel specification built-in type air conditioner, and (B) is a duct specification built-in type. It is a side view which shows an air conditioner, respectively.
[0021]
The panel specification built-in type air conditioner 30 shown in FIG. 1 (A) and the duct specification built-in type air conditioner 40 shown in FIG. 1 (B) 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, and an electrical control box 37 for operation control.
[0022]
The box body 54 of the unit main body 35 has a top plate 39 at the upper edge portion of four side plates 38 that are arranged opposite to each other and provided in a square frame shape, and a drain pan presser plate 46 at a part of the lower edge portion. Fixed and configured. A heat insulating material is attached to the inner and outer surfaces, or the inner or outer surface (the outer surface in the present embodiment) of the side plate 38, the top plate 39, and the drain pan presser plate 46.
[0023]
A hanging metal fitting 41 is fixed to the side plate 38 of the box body 54 of the unit main body 35. The hanging metal fitting 41 is fixed to a hanging bolt 42 suspended from the ceiling 32 of the building 31, so that the panel specification built-in type air conditioner is attached. The machine 30 and the duct specification built-in type air conditioner 40 are configured to be suspended from the ceiling 32 of the building 31.
[0024]
The unit main body 35 is configured such that an indoor heat exchanger, a fan, and a fan motor (not shown) are accommodated inside a box body 54. The indoor heat exchanger uses a refrigerant pipe (gas pipe) connected to the refrigerant pipe connection port 43 shown in FIGS. 2 and 3, and a refrigerant pipe (liquid pipe) connected to the refrigerant pipe connection port 44. It is connected to an outdoor unit (not shown). The indoor heat exchanger 55 of the unit main body 35 cools or heats the air sucked into the unit main body 35 as will be described later by evaporation or condensation of the refrigerant guided from the outdoor unit.
[0025]
2 and 3, reference numeral 45A indicates a drain piping connection port, and reference numeral 45B indicates a drain discharge port.
[0026]
A plurality of the blowout ducts 36 shown in FIG. 1 are usually extended from the unit main body 35. Each of the blowout ducts 36 is fitted at one end to a blowout port 47 (FIGS. 2 and 3) integrally installed on one side plate 38A of the box body 54 of the unit main body 35, and a blowout grill 48 is attached to the other end. It is done. The blowing grill 48 is installed at an appropriate position on the ceiling board 33. The rotation of the fan of the unit main body 35 causes room air to be sucked into the unit main body 35 as will be described later, and the air heat-exchanged by the indoor heat exchanger is blown out from the blow grill 48 into the room through the blow duct 36.
[0027]
By the way, the panel specification built-in type air conditioner 30 shown in FIGS. 1A and 2 has a ceiling panel 49 fitted into the lower opening of the unit main 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.
[0028]
Moreover, the duct specification built-in type air conditioner 40 shown to FIG. 1 (B) and FIG. 3 is the side plate (one side plate 38 of the box body 54 of the unit main body 35) facing the side plate 38A in which the blower outlet 47 was installed ( That is, a suction opening (not shown) is formed in the rear side plate 38B of the duct specification built-in type air conditioner 40, and a single suction duct 52 is usually provided in the side plate 38 (back side plate 38B) via, for example, the filter box 51. It is something that was installed. 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.
[0029]
The lower opening of the unit main body 35 of the duct specification built-in type air conditioner 40 is closed by a wind shielding plate 57. In the present embodiment, a heat insulating material is also attached to the outside of the wind shielding plate 57. Further, as shown in FIG. 1, the electrical box 37 is attached to a side plate 38 </ b> C in which the blowout duct 36 or the suction duct 52 is not provided among the side plates 38 of the unit body 35.
[0030]
Now, as shown in FIGS. 4A and 4B, the air outlet 47 installed in the box body 54 of the unit main body 35 is made of a resin material, and has a cylindrical duct insertion portion 58, a ring, The flange portion 59 having a shape is integrally formed by, for example, an injection molding method.
[0031]
The blowing duct 36 can be inserted into the duct insertion portion 58. Further, the flange portion 59 comes into contact with the side plate 38A of the box body 54 in the unit main body 35 and is fixed by screws (not shown), whereby the air outlet 47 is fixedly attached to the unit main body 35. Reference numeral 64 in FIG. 4 is a screw hole through which the screw is inserted.
[0032]
As shown in FIG. 6, a heat insulating material 62 (for example, polyethylene or polystyrene foam) for preventing condensation is attached to the outer surface 60 of the flange portion 59. The outer surface 60 is formed with a curved surface 63 </ b> A reaching the inner surface 61 at the outer peripheral edge.
[0033]
Accordingly, in the unfolded state shown in FIG. 5, a single linear heat insulating material 62 is bonded to the flat surface 63B on the outer surface 60 of the flange portion 59, and at the same time, the outer peripheral edge of the heat insulating material 62 is along the curved surface 63A. By sticking to the curved surface 63A while being bent, it is possible to cover the entire outer surface 60 of the flange portion 59 in one step using a single heat insulating material 62. In addition, the code | symbol 72 of FIG. 5 is a notch corresponding to the screw hole 64 in the flange part 59 of the blower outlet 47. FIG.
[0034]
Here, when the edge 67 is formed on the outer peripheral edge portion of the flange portion 66 as in the air outlet 65 shown in FIG. 7, the outer surface of the flange portion 66 is flat with the edge 67 as a boundary. It is partitioned into an outer surface 68 and a flat outer surface 69 that is also flat. For this reason, in order to cover all the outer surfaces of the flange portion 66 with the heat insulating material, one heat insulating material 70 is stuck on the outer surface 68 of the flange portion 66, and another heat insulating material is applied to the outer surface 69. It is necessary to stick 71, and the number of heat insulating materials will be two.
[0035]
On the other hand, as described above, the inner surface 61 of the flange portion 59 contacts the side plate 38A of the box body 54 in the unit main body 35. As shown in FIG. 4C, ribs 73 project from the inner surface 61. Is done. The rib 73 includes an inner peripheral rib element 73A provided on the inner peripheral edge of the inner surface 61, an outer peripheral rib element 73B provided on the outer peripheral edge of the inner surface 61, and the inner peripheral rib element 73A and the outer peripheral rib. The element 73B is continuous, and has a bridge rib element 73C provided as appropriate in the circumferential direction of the inner surface 61.
[0036]
By forming the rib 73 on the inner surface 61 of the flange portion 59, the strength of the flange portion 59 is ensured even if the flange portion 59 is thinned. Further, when the blower outlet 47 is attached to the box body 54, the rib 73 bites into and comes into contact with a heat insulating material (not shown) attached to the outer surface of the side plate 38 of the box body 54.
[0037]
Further, as shown in FIG. 4B, an insertion surface portion 74 and a locking portion 75 are integrally molded at the outer peripheral front end portion of the duct insertion portion 58 of the air outlet 47. The insertion surface portion 74 includes an inclined surface 76 that decreases in diameter toward the tip of the duct insertion portion 58, and the inclined surface 76 guides the blowout duct 36 when the blowout duct 36 is inserted. In addition, a locking surface 77 that is substantially orthogonal to the outer peripheral surface of the duct insertion portion 58 is provided from the most enlarged portion of the inclined surface 76, and the locking portion 75 is the outermost surface of the locking surface 77. Configured as part. The locking portion 75 is locked to the inner peripheral surface of the blowout duct 36 inserted into the duct insertion portion 58.
[0038]
Therefore, according to the above embodiment, the following effects (1) to (5) are achieved.
[0039]
(1) The outer surface 60 of the flange portion 59 to which the heat insulating material 62 is adhered at the outlet 47 has a curved surface 63A formed on the outer peripheral edge thereof. The heat insulating material 62 can be stuck while being bent along the curved surface 63A. For this reason, while the number of heat insulating materials stuck to the outer surface 60 of the flange part 59 in one blower outlet 47 can be made into one sheet, one process is carried out to the outer surface 60 of the flange part 59 in one blower outlet 47. Since the heat insulating material 62 can be attached, the workability of the attaching operation of the heat insulating material 62 can be improved.
[0040]
(2) Since the outlet 47 is made of a resin material, the cost of the outlet 47 can be reduced. Furthermore, since the blower outlet 47 is made of a resin material, the thermal conductivity of the blower outlet 47 is lowered, and condensation occurring around the flange portion 59 of the blower outlet 47 can be suppressed. For this reason, the heat insulating material 62 for preventing dew condensation stuck to the outer surface 60 of the flange portion 59 can be thinned, and the cost of the outlet 47 can be reduced.
[0041]
(3) Since the rib 73 protrudes from the inner surface 61 that contacts the box 54 of the unit main body 35 at the flange portion 59 of the air outlet 47, the strength of the flange portion 59 is increased and the rigidity of the air outlet 47 is increased. As a result, the flange portion 59 can be made thinner.
[0042]
(4) Since the rib 73 of the inner surface 61 of the flange portion 59 of the outlet 47 contacts the box body 54 of the unit main body 35, the contact surface pressure between the rib 73 and the box body 54 increases, and the box The ribs 73 bite into the heat insulating material attached to the outer surface of the side plate 38A of the body 54. As a result, the sealing performance between the flange portion 59 of the air outlet 47 and the box body 54 of the unit main body 35 can be improved.
[0043]
(5) An insertion surface portion 74 having an inclined surface 76 that is reduced in diameter toward the tip at the outer peripheral tip of the duct insertion portion 58 of the outlet 47, and a locking portion 75 that is locked to the inner surface of the outlet duct 36. Therefore, the blowout duct 36 can be easily inserted into the duct insertion portion 58 of the blowout port 47 by the action of the insertion surface portion 74. Further, the locking portion 75 is locked to the inner surface of the blowout duct 36 inserted into the duct insertion portion 58, so that the blowout duct 36 can be prevented from falling off from the blowout port 47.
[0044]
As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to this.
[0045]
【The invention's effect】
As described above, according to the air conditioner according to the present invention, the duct insertion portion and the flange portion are integrally formed of the resin material to form the air outlet, and the heat insulating material of the flange portion is attached. Since the outer surface has a curved surface at the outer peripheral edge, it is possible to reduce the cost of the air outlet and reduce the number of heat insulating materials to prevent dew condensation attached to the air outlet. The number of work steps can be reduced, and the workability of the heat insulating material sticking work can be improved.
[Brief description of the drawings]
FIG. 1 shows an embodiment of a built-in type air conditioner to which an air conditioner according to the present invention is applied, in which (A) is a panel specification built-in type air conditioner, and (B) is a duct specification built-in type air conditioner. It is each side view of a machine.
FIG. 2 is a perspective view showing a unit main body of the panel specification built-in type air conditioner in FIG.
FIG. 3 is a perspective view showing a unit main body of the duct specification built-in type air conditioner in FIG.
4A and 4B show the air outlet of FIGS. 2 and 3, wherein FIG. 4A is a half sectional front view, FIG. 4B is a plan view, and FIG.
5 is a development view showing a heat insulating material attached to the flange of the air outlet shown in FIG. 4. FIG.
6 is a front view showing the air outlet of FIG. 4 in which the heat insulating material of FIG. 5 is attached to a flange portion.
7 is a front view showing a comparative example of the air outlet shown in FIG. 4 in which a heat insulating material is attached to the flange portion.
8A and 8B are partial perspective views of a conventional built-in type air conditioner, in which FIG. 8A is a panel type built-in type air conditioner, and FIG. 8B is a duct type built-in type air conditioner.
9 shows the air outlet of FIG. 8, (A) is a front view, and (B) is a plan view. FIG.
10 is a plan view showing a heat insulating material attached to the flange portion of the air outlet of FIG. 9. FIG.
[Explanation of symbols]
30 Panel Specification Built-in Air Conditioner 31 Building 32 Ceiling 34 Ceiling Space 35 Unit Body 36 Blowout Duct 40 Duct Specification Built-in Air Conditioner 47 Air outlet 58 Duct Insertion Port 59 Flange Portion 60 Outer Surface 61 Inner Surface 62 Heat Insulating Material 63A Curved Surface 73 Rib 74 Insertion surface portion 75 Locking portion 76 Inclined surface

Claims (2)

In the air conditioner installed on the ceiling of the building, the unit body configured to accommodate the heat exchanger and the fan, and the blowout duct extended through the blowout outlet,
On the outer surface of the unit body, a heat insulating material is attached,
The air outlet is formed of a resin material, and a cylindrical duct insertion portion into which an air outlet duct is inserted and a ring-shaped flange portion fixed in contact with the unit main body are integrally formed,
While the shape of the outer surface of the flange portion is configured as a curved surface shape to which a single heat insulating material is adhered while being bent along the outer surface, the inner surface facing the outer surface of the flange portion is The air conditioner is characterized in that ribs that protrude into and come into contact with the heat insulating material attached to the outer surface of the unit main body are provided.   The outer peripheral tip portion of the duct insertion portion of the air outlet is formed with an insertion surface portion having an inclined surface that is reduced in diameter toward the tip, and a locking portion that is locked to the inner surface of the air outlet duct. The air conditioner according to claim 1.

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