JP2017067387A - Ceiling-embedded type indoor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ceiling-embedded type indoor unit capable of easily guiding to a corner part air discharged from both end parts of a discharge port.SOLUTION: A ceiling-embedded type indoor unit 10 includes an indoor unit body 14 storing a heat exchanger 30 and an air blower 20, and a decorative panel 33 installed in a ceiling 11 in combination with the indoor unit body 14 and having a discharge port 37, wherein the decorative panel 33 includes: a discharge port 37 feeding air after temperature control to an air-conditioned chamber; a flap 60 provided at the discharge port 37; and a corner part 42 provided adjacently to a short side of the discharge port 37, the corner part 42 includes groove parts 100, 110 on an outer surface 42A, and the groove parts 100, 110 are provided continuously to the discharge port 37.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a ceiling-embedded indoor unit, and more particularly, to a corner panel provided on a decorative panel provided in a ceiling-embedded indoor unit.

Conventionally, a ceiling-embedded indoor unit of an air conditioner includes an indoor unit main body and a decorative panel that covers a lower opening of the indoor unit main body.
This type of decorative panel is provided with an air outlet, and a corner portion is provided at a position adjacent to the short side of the air outlet (see, for example, Patent Document 1).

JP 2010-281539 A

In a ceiling-embedded indoor unit provided with this type of decorative panel, the surface of the corner panel is flat when air after temperature adjustment is sent to the room to be conditioned. It was difficult to guide the air conditioned by the heat exchanger to the corner.
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a ceiling-embedded indoor unit that easily guides air discharged from both ends of a blower outlet to a corner portion.

  In order to achieve the above-described object, the present invention provides a ceiling embedded including an indoor unit main body that houses a heat exchanger and a blower, and a decorative panel that is installed on the ceiling surface and has a blower outlet in combination with the indoor unit main body. In the built-in indoor unit, the decorative panel includes an air outlet for sending the temperature-controlled air to the conditioned room, a flap provided at the air outlet, and a corner portion provided adjacent to the air outlet. The corner portion includes a groove portion on an outer surface, and the groove portion is provided continuously with the air outlet.

  Further, the present invention is provided with a gap between the flap and the blower outlet for sending the temperature-controlled air to the chamber to be conditioned while the flap is in a closed state. It is characterized by being continuous in a closed state.

  In the present invention, the flap includes a flap gap extending in a longitudinal direction of the flap, and the groove and the flap gap are continuous in a closed state of the flap.

  Further, according to the present invention, the outlet is provided at four locations in four directions at positions along each side of the decorative panel, the corner portions are provided at the four corners of the decorative panel, and one end of the corner portion is , One end of the corner portion is adjacent to another air outlet, and the groove portion extends from a location adjacent to one air outlet to the other air outlet. It is provided over the adjoining location, The continuation with the said groove part and the said blower outlet is provided by making one round in the circumferential direction of the said decorative panel.

  In addition, the present invention is characterized in that the groove portion has unevenness.

  According to the present invention, since the air discharged from both ends of the air outlet can be guided to the groove portion of the corner, the ceiling-embedded room that easily guides the air discharged from both ends of the air outlet to the corner Unit can be provided.

It is side part sectional drawing of the ceiling embedded type indoor unit of the air conditioning apparatus which concerns on embodiment of this invention. It is a perspective view of a ceiling-embedded indoor unit. It is the top view which looked at the decorative panel of the ceiling embedded type indoor unit from the to-be-conditioned room side. It is a perspective view of the decorative panel of the state which opened the flap. It is a perspective view of the decorative panel of the state which closed the flap. It is a perspective view of a flap. It is AA sectional drawing of the state in which the flap was closed. It is an enlarged plan view of a corner panel. It is detail drawing of the BB part of FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side sectional view of a ceiling-embedded indoor unit 10 of an air conditioner according to an embodiment of the present invention. FIG. 2 is a perspective view of the ceiling-embedded indoor unit 10. FIG. 3 is a plan view of the decorative panel 33 of the ceiling-embedded indoor unit 10 as viewed from the room to be conditioned. FIG. 4 is a perspective view of the decorative panel 33 with the flap 60 opened. FIG. 5 is a perspective view of the decorative panel with the flap closed.
In the following description, “upper and lower” and “inside / outside” are described based on the ceiling-embedded indoor unit 10 in a state where the decorative panel 33 is attached to the indoor unit body 14. Moreover, the space where the temperature-controlled air is blown out is used as a conditioned room.

The ceiling-embedded indoor unit 10 is installed in a ceiling space 13 between a ceiling 11 of a building and a ceiling plate 12 installed below the ceiling 11. The ceiling-embedded indoor unit 10 includes an indoor unit body 14 and a decorative panel 33 that covers a lower opening of the indoor unit body 14.
Hanging brackets 18 are attached to the outer corners of the indoor unit body 14. The indoor unit main body 14 is installed in a state of being suspended from the ceiling 11 by a suspension bolt 15 connected to a suspension metal fitting 18. Inside the indoor unit main body 14, a heat insulating member 16 made of polystyrene foam is disposed in contact with the inner surface of the side plate 17 of the indoor unit main body 14 to prevent condensation on the side plate 17.

  A fan motor 21 is attached to the lower surface of the upper plate of the indoor unit main body 14, and a rotary shaft 22 that is rotationally driven by the drive of the fan motor 21 extends downward. It has been. A centrifugal fan 23 is attached to the lower end portion of the rotary shaft 22, and the fan motor 21 and the centrifugal fan 23 constitute a blower 20.

The centrifugal fan 23 includes a main plate 24 formed in an annular plate shape. At the center portion of the main plate 24, an inverted truncated cone motor accommodating portion 25 extending downward is formed.
A fan motor 21 is housed in the motor housing portion 25, and a rotating shaft 22 of the fan motor 21 extends downward and is connected to the bottom surface of the motor housing portion 25. And it is comprised so that the centrifugal fan 23 may be rotationally operated via the rotating shaft 22 by rotationally driving the fan motor 21.

A shroud 26 is provided below the main plate 24, and the shroud 26 is formed in an annular shape with a circumferential surface formed in an arc shape. A plurality of blades 27 are integrally formed between the main plate 24 and the inner peripheral surface of the shroud 26 with a predetermined interval in the circumferential direction.
An orifice 28 is disposed below the shroud 26, and the orifice 28 is formed in an annular shape having a circumferential surface formed in an arc shape.

Between the blower 20 and the heat insulating member 16, a heat exchanger 30 that is bent in a substantially square shape in a plan view is disposed so as to surround the side of the blower 20.
The heat exchanger 30 is a heat exchanger 30 that functions as a refrigerant evaporator during cooling operation and functions as a refrigerant condenser during heating operation. The heat exchanger 30 exchanges heat between the indoor air sucked into the indoor unit body 14 and the refrigerant, cools the air in the air-conditioned room during the cooling operation, and heats the indoor air during the heating operation. It is configured to be able to.

  A drain pan 31 is disposed below the heat exchanger 30 so as to correspond to the lower surface of the heat exchanger 30. The drain pan 31 is for receiving drain water generated in the heat exchanger 30. A suction port 32 of the blower 20 is formed in the central portion of the drain pan 31.

As shown in FIGS. 1 and 2, a substantially rectangular decorative panel 33 is attached to the lower surface of the indoor unit body 14 so as to cover the lower opening of the indoor unit body 14.
A suction port 34 of the panel body 40 communicating with the suction port 32 of the drain pan 31 is formed in the central portion of the panel body 40 of the decorative panel 33. A suction grill 35 that covers the suction port 34 of the panel body 40 is detachably attached to the suction port 34 portion of the panel body 40. A filter 36 for removing dust in the air is provided on the suction grill 35 on the indoor unit main body 14 side.

Air outlets 37 that send the temperature-controlled air to the conditioned room are formed at positions outside the suction port 34 of the panel body 40 and along each side of the panel body 40. The air outlet 37 is formed in a substantially rectangular shape. As shown in FIG. 7, the air outlet 37 is formed with an outer end portion 37A and an inner end portion 37B. The outer end portion 37 </ b> A is formed so as to bend outward while being directed downward from above the air outlet 37. The inner end portion 37 </ b> B is formed to bend downward while facing the outside of the air outlet 37.
Further, as shown in FIGS. 2 to 5, flaps 60 for changing the blowing direction are respectively provided at the blowout ports 37 in the four directions.

FIG. 6 is a perspective view of the flap 60. FIG. 7 is a cross-sectional view taken along line AA of FIG. 3 in a state where the flap is closed.
As shown in FIG. 3, the flap 60 is formed in a substantially rectangular shape. The flap 60 includes a first guide member 70, a second guide member 80, and a connection member 90 that connects the first guide member 70 and the second guide member 80.
The first guide member 70 has an inner surface 70B that guides air blown from the indoor unit main body 14 after air conditioning, and an outer surface 70A that is the opposite surface of the inner surface 70B. The inner surface 70B and the outer surface 70A are flat surfaces. No heat insulating material is provided on the inner surface 70B.
The second guide member 80 has an inner surface 80B that guides air blown from the indoor unit main body 14 after air conditioning, and an outer surface 43B that is the opposite surface of the inner surface 80B. The inner surface 80B and the outer surface 43B are flat surfaces.

  The first guide member 70 is formed of a base portion 71, a bent portion 73, and a guide portion 75 formed from the base portion 71 via the bent portion 73. As shown in FIG. 7, the guide portion 75 is formed by bending approximately 30 degrees from the base portion 71 toward the inner surface 70 </ b> B by a bent portion 73.

A convex portion 74 is provided on the inner surface 70 </ b> B of the bent portion 73. The convex portion 74 is formed with a rotation shaft 61. The rotation shaft 61 is axially passed through the convex portion 74 over the long side direction of the first guide member 70.
The length of the guide portion 75 in the short side direction is formed to be approximately three times the length of the base portion 71 in the short side direction.
One of the rotating shafts 61 is pivotally supported by a bearing portion of a bearing material (not shown) provided on the back side of the corner panel 42. The other end of the rotation shaft 61 is connected to a drive motor (not shown) provided on the back side of the corner panel 42.

  As shown in FIG. 3, a central support member 77 is provided on the inner surface 70 </ b> B of the first guide member 70 and in the center of the first guide member 70 in the long side direction. The central support member 77 is pivotally supported by a pivotal support member 39 provided so as to extend from the central portion of the blower outlet 37 in the long side direction, thereby rotatably supporting the central portion of the flap 60. Further, the central support member 77 is pivotally supported by the pivot support member 39 to prevent the first guide member 70 from being bent.

  A connecting member 90 that extends in a direction orthogonal to the outer surface 70A is integrally provided at the rear end of the base 71. The connecting member 90 is a member that connects the first guide member 70 and the second guide member 80, and is integrally formed with the outer surface 70 </ b> A of the first guide member 70 and the inner surface 80 </ b> B of the second guide member 80. ing. A plurality of connecting members 90 are formed at predetermined intervals in the long side direction of the base 71, and are formed at eight locations in the present embodiment. The connecting member 90 prevents the second guide member 80 from being bent.

A flap gap S <b> 1 is provided between the bent portion 73 of the first guide member 70 and the outer end 99 of the second guide member 80. As shown in FIG. 7, the flap gap S1 allows the temperature-controlled air blown out from the indoor unit main body 14 to pass therethrough. The flap gap S1 may be an interval that allows the air after temperature adjustment to pass therethrough.
The flap gap S <b> 1 is provided between the first guide member 70 and the second guide member 80 and extends in the longitudinal direction of the flap 60.

  The length of the second guide member 80 in the long side direction is substantially equal to the length of the first guide member 70 in the long side direction. Further, the left and right ends of the first guide member 70 in the long side direction and the left and right ends of the second guide member 80 in the long side direction are provided so as to substantially coincide with each other as shown in FIG.

The length of the second guide member 80 in the short side direction is configured to be shorter than the length of the first guide member 70 in the short side direction. The length of the second guide member 80 in the short side direction is configured to be approximately the same as the length of the base 71 in the short side direction.
The length of the second guide member 80 in the short side direction is a length that can rectify the air blown from the indoor unit main body 14. The length of the second guide member 80 in the short side direction can be appropriately changed as long as the air blown from the indoor unit main body 14 can be rectified.
For example, the length of the second guide member 80 in the short side direction may be longer than the length of the base 71 in the short side direction and may be longer in the direction of the guide unit 75.

  As shown in FIG. 7, when the state in which the flap 60 is closed is the closed state, the flap 60 is in the closed state in the position of the inner end 112 of the first guide member 70 and the outer end 99 of the second guide member 80. The positions are configured to be substantially equal in the vertical direction. The position of the inner end 104 of the second guide member 80 is located behind the position of the inner end 112 of the first guide member 70.

In the closed state of the flap 60, a gap S <b> 2 is provided between the inner end 104 of the second guide member 80 and the inner end 101 of the air outlet 37. By providing the gap S2, even if the flap 60 is provided with the second guide member, the flap 60 is not hindered from being opened and closed. Further, the air after temperature adjustment passes through the gap S2 into the conditioned room.
The gap S <b> 2 is provided along the long side direction of the flap 60.

FIG. 8 is an enlarged plan view of the corner panel.
As shown in FIGS. 2 to 5, corner panels 42 as corner portions are respectively provided at the left and right ends of the air outlet 37. The corner panels 42 are provided at the four corners of the decorative panel 33. The corner panel 42 includes a recess 43 that is recessed in accordance with the shape of the corner of the suction grill 35. An adjacent side 44 as one end of the corner portion, which is the two sides sandwiching the concave portion 43, is configured to be adjacent to the short side of the air outlet 37 when the corner panel 42 is attached to the panel body 40.

  The outer surface 42A of the corner panel 42 is formed on the outer side in the circumferential direction of the first groove portion 100 as a first groove portion 100 as a groove portion formed at a substantially right angle toward the inner side of the decorative panel 33. Similarly to 100, a second groove portion 110 is formed as a groove portion formed at a substantially right angle toward the inside of the decorative panel 33.

  From the outer end 103 of the first groove portion 100 to the inner end 111 of the second groove portion 110, a first inclined portion 106 that is inclined downward toward the chamber to be conditioned is formed. From the outer end 113 of the second groove 110 to the outer side of the decorative panel 33, a second inclined portion 116 that is inclined downward toward the room to be conditioned is formed.

The length of the first inclined portion 106 in the adjacent side 44 direction is substantially equal to the length of the second guide member 80 in the short side direction. In a state where the flap 60 is closed, the first inclined portion 106 is formed with an outer surface 80A of the second guide member 80 and an inclined surface that is substantially continuous in the long side direction of the air outlet 37.
The gap S <b> 2 extending in the long side direction of the air outlet 37 and the first groove portion 100 are formed continuously in the long side direction of the air outlet 37. Further, the flap gap S <b> 1 and the second groove 110 are formed continuously in the long side direction of the air outlet 37.
The second inclined portion 116 is formed with an outer surface 70A of the base portion 71 of the first guide member 70 and an inclined surface substantially continuous in the long side direction of the air outlet 37 with the flap 60 closed. ing.

The inner end 98 of the first groove 100 is formed substantially continuously with the inner end 101 of the air outlet 37 and in the long side direction of the air outlet 37. Further, the outer end 103 of the first groove portion 100 is formed substantially continuously with the inner end 104 of the second guide member 80 in the long side direction of the air outlet 37.
The first groove portion 100 has a corner portion 105 that is continuous with the gap S <b> 2 at one adjacent side 44 of the corner panel 42 and is formed at a substantially right angle toward the inside of the decorative panel 33. It is continuous with the gap S <b> 2 provided in another air outlet 37 at the adjacent side 44.
Thus, the 1st groove part 100 and the clearance gap S2 are making a round in the circumferential direction of the decorative panel 33, and are continuing.

The inner end 111 of the second groove 110 is formed continuously with the outer end 99 of the second guide member 80 and the long side direction of the air outlet 37. Further, the outer end 113 of the second groove portion 110 is formed substantially continuously in the bent portion 73 of the first guide member 70 and the long side direction of the air outlet 37.
The second groove portion 110 has a corner portion 115 which is continuous with the flap gap S1 at one adjacent side 44 of the corner panel 42 and formed at a substantially right angle toward the inside of the decorative panel 33. Is adjacent to the flap gap S <b> 1 provided at another outlet 37.
Thus, the second groove 110 and the flap gap S <b> 1 provided in the air outlet 37 are continuous in the circumferential direction of the decorative panel 33.

FIG. 9 is a detailed view of a portion BB in FIG.
As shown in FIG. 9, the first groove 100 is provided with irregularities 107 along the circumferential direction. The unevenness 107 is formed by a recess 108 and a protrusion 109. A plurality of projections and depressions 107 are formed so as to rise toward the ceiling as it goes to the outside of the decorative panel 33.
In addition, the number of the unevenness | corrugations 107 can be changed suitably.

Concavities and convexities 117 are formed in the second groove 110 along the circumferential direction. The unevenness 117 is formed by a concave portion 118 and a convex portion 119. A plurality of irregularities 117 are formed so as to rise toward the ceiling as it goes outward of the decorative panel 33.
Note that the number of the irregularities 117 can be changed as appropriate.

Next, the operation of this embodiment will be described.
When the air in the chamber to be conditioned is sucked from the suction port 34 by the blower 20, the air passes through the filter 36 and then passes through the heat exchanger 30, and heat is exchanged. Sent.
At this time, when the temperature-controlled air is blown from the blower outlet 37 to the chamber to be conditioned, the first groove part 100 and the second groove part 110 are formed in the long side direction of the blower outlet 37. The warm air also flows in the direction of the first groove 100 and the second groove 110.
The temperature-controlled air that flows in the direction of the first groove portion 100 and the second groove portion 110 passes through the unevenness 107 and the unevenness 117 and flows in the circumferential direction of the ceiling-embedded indoor unit 10.

As described above, according to the present embodiment, the decorative panel 33 includes the air outlet 37 that sends the temperature adjusted (cooled or heated) by the heat exchanger 30 in the indoor unit body 14 to the conditioned room. , A flap 60 provided at the air outlet 37, and a corner panel 42 (corner portion) provided adjacent to the air outlet 37. The corner panel 42 has a first groove portion 100 (groove portion) and a first groove on the outer surface 42A. Two groove portions 110 (groove portions) are provided, and the first groove portion 100 and the second groove portion 110 are provided continuously with the air outlet 37.
Since the air discharged from both ends of the outlet 37 can be guided to the first groove 100 and the second groove 110 of the corner panel 42, the air discharged from both ends of the outlet 37 is supplied to the corner panel 42. A ceiling-embedded indoor unit that is easy to guide can be provided.

Moreover, according to this Embodiment, between the flap 60 and the blower outlet 37, it has clearance S2 which sends the air after temperature adjustment to the to-be-conditioned room in the closed state of the flap 60, and the 1st groove part 100 and The gap S <b> 2 is configured to be continuous when the flap 60 is closed.
According to this configuration, when air is blown out from the air outlet 37 in the closed state of the flap 60, the air blown out from the gap S2 between the flap 60 and the inner end of the air outlet can be guided to the first groove portion 100. . The ceiling-embedded indoor unit that can easily guide the air discharged from the gap formed between the flap 60 and the inner end of the air outlet to the corner panel 42 can be provided.

Further, according to the present embodiment, the flap 60 includes the flap gap S1 extending in the longitudinal direction of the flap 60, and the second groove 110 and the flap gap S1 are configured to be continuous in the closed state of the flap.
According to this configuration, when air is blown out from the air outlet 37 in the closed state of the flap 60, the flap 60 is configured by the two-stage guide member, and the air is blown from the flap gap S1 generated between the two-stage guide members. The air to be discharged can be guided to the first groove portion 100. Even when the flap guide members are configured in two stages, it is possible to provide a ceiling-embedded indoor unit that can easily guide the temperature-controlled air to the corner panel 42 when the flap 60 is closed.
When the flap 60 is constituted by a plurality of guide members, the corner panel may be provided with a gap provided between the guide members and each groove portion continuous in the long side direction of the air outlet 37.

Moreover, according to this Embodiment, the blower outlet 37 is provided in the four directions in the position along each edge | side of the decorative panel 33, the corner panel 42 is provided in the four corners of the decorative panel 33, and a corner panel is provided. One adjacent side 44 (one end of the corner portion) 42 is adjacent to the one outlet 37, and the other adjacent side 44 (other end of the corner portion) of the corner panel 42 is connected to the other outlet 37. Adjacent. The first groove portion 100 and the second groove portion 110 are provided from one adjacent side 44 to the other adjacent side 44. In addition, the first groove portion 100 and the second groove portion 110 and the air outlet 37 are continuously provided in the circumferential direction of the decorative panel 33.
According to this configuration, the air discharged in the direction of the first groove portion 100 and the second groove portion 110 can be caused to flow and circulate throughout the entire circumferential direction of the ceiling-embedded indoor unit 10. Since air can be circulated, the first groove portion 100 and the second groove portion 110 are unlikely to cause dew condensation.

Moreover, according to this Embodiment, the 1st groove part 100 and the 2nd groove part 110 were provided with the unevenness | corrugation, and were comprised.
According to this configuration, even when the air discharged from both ends of the air outlet 37 is guided to the first groove portion 100 and the second groove portion 110, the air flows into the unevenness 107 and the unevenness 117, and the first The groove portion 100 and the second groove portion 110 are unlikely to condense.

  As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this embodiment. Since only one embodiment of the present invention is illustrated, changes and applications can be arbitrarily made without departing from the spirit of the present invention.

  For example, in this embodiment, the corner portion is configured to be detachable as the corner panel 42, but the corner portion is not necessarily detachable.

10 ceiling-embedded indoor unit 20 blower 30 heat exchanger 33 decorative panel 37 outlet 40 panel body 42 corner panel (corner part)
42A outer surface 43 recess 44 adjacent side (one end of corner)
60 flap 70 first guide member 70A outer surface 70B inner surface 71 base 73 bent portion 75 guide portion 80 second guide member 80A outer surface 80B inner surface 100 first groove portion (groove portion)
101 Inner end of first groove portion 102 Inner end of air outlet 103 Outer end of first groove portion 104 Rear end of second guide member 105 Corner portion 106 Front end of second guide member 107 Concavity and convexity 109 First inclined portion 110 Second groove (groove)
111 Inner end of second groove portion 113 Outer end of second groove portion 115 Corner portion 117 Concavity and convexity 119 Second inclined portion S1 Flap gap S2 gap

Claims (5)

In a ceiling-embedded indoor unit comprising an indoor unit main body that houses a heat exchanger and a blower, and a decorative panel that is installed on the ceiling and has a blowout outlet in combination with the indoor unit main body,
The decorative panel includes an air outlet that sends the temperature-controlled air to the conditioned room, a flap that is provided in the air outlet, and a corner portion that is provided adjacent to the air outlet,
The corner portion includes a groove portion on an outer surface,
The ceiling-embedded indoor unit, wherein the groove is provided continuously with the air outlet. Between the flap and the outlet, provided with a gap for sending the temperature-controlled air to the conditioned room in the closed state of the flap,
2. The ceiling-embedded indoor unit according to claim 1, wherein the groove and the gap are continuous in a closed state of the flap. The flap includes a flap gap extending in a longitudinal direction of the flap;
The ceiling-embedded indoor unit according to claim 1 or 2, wherein the groove and the flap gap are continuous in a closed state of the flap. The air outlet is provided at four locations in four directions at positions along each side of the decorative panel,
The corner portions are provided at the four corners of the decorative panel,
One end of the corner portion is adjacent to one of the air outlets, and another end of the corner portion is adjacent to another air outlet.
The groove is provided from a location adjacent to one of the air outlets to a location adjacent to the other air outlet,
4. The ceiling-embedded indoor unit according to claim 1, wherein the groove and the air outlet are continuously provided in a circumferential direction of the decorative panel. 5.   The ceiling-embedded indoor unit according to any one of claims 1 to 5, wherein the groove portion is provided with unevenness.

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