JP2017062087A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner including a flap which achieves a small amount of dew condensation on its outer surface even when air blown out from an indoor unit body is guided with an inner surface of the flap.SOLUTION: An air conditioner includes: an indoor unit 10 that houses a heat exchanger 30 and a blower 20; and a flap 60 provided at an air outlet 37 of the indoor unit 10. The flap 60 includes: a first guide member 70 which guides air-conditioned air to a conditioned room; and a second guide member 80 which guides the air-conditioned air to the conditioned room and an outer surface 70A of the first guide member 70. The second guide member 80 is provided spaced a distance S1 away from the first guide member 70 in an outer surface 70A direction of the first guide member 70.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an air conditioner, and more particularly to a flap provided at a wind outlet of an indoor unit.

Conventionally, an indoor unit of an air conditioner has been provided with a flap that guides the wind blown to the wind outlet.
This type of flap is configured to include an inner surface of the flap that receives and guides the wind blown from the indoor unit main body, and an outer surface on the opposite side (see, for example, Patent Document 1).

JP 2001-194000 A

However, when guiding the air blown from the indoor unit main body on the inner surface of the flap, there is a problem that dew is generated on the outer surface of the flap.
The present invention has been made in view of the above-described circumstances, and includes a flap that hardly causes dew formation on the outer surface of the flap even when guiding the air blown from the indoor unit main body on the inner surface of the flap. An object is to provide an air conditioner.

  In order to achieve the above object, the present invention provides an air conditioner comprising: an indoor unit that houses a heat exchanger and a blower; and a flap that is provided at an air outlet of the indoor unit. A first guide member that guides the air to the conditioned room, and a second guide member that guides the air after air conditioning to the conditioned room and guides the air to the outer surface of the first guide member, The second guide member is provided at a distance from the first guide member in the outer surface direction of the first guide member.

  According to the present invention, the length of the second guide member in the long side direction is substantially equal to the length of the first guide member in the long side direction, and the first guide member and the second guide member The guide member is characterized in that the left and right ends in the long side direction of the first guide member and the left and right ends in the long side direction of the second guide member are provided so as to substantially coincide with each other.

  In the invention, it is preferable that the first guide member includes a base portion and a guide portion bent from the base portion.

  In the present invention, the second guide member is provided so as to overlap the base, and the length of the second guide member in the short side direction is substantially equal to the length of the base in the short side direction. It is characterized by providing.

  In the present invention, the second guide member and the base are provided substantially in parallel, and the angle at which the guide is bent is approximately 30 degrees from the base toward the inner surface of the first guide member. It is characterized by being.

  According to the present invention, the air after the air conditioning is guided from the second guide member to the outer surface of the first guide member, and the air after the air conditioning guided by the second guide member is the outer surface of the first guide member. Therefore, even when guiding the air blown from the indoor unit body on the inner surface of the flap, there is little occurrence of dew on the outer surface of the flap. An air conditioner including a flap can be provided.

It is side part sectional drawing of the indoor unit of the air conditioning apparatus which concerns on embodiment of this invention. It is a perspective view of an indoor unit. It is the top view which looked at the decorative panel of the 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 a flap. FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 3, (A) is a view in a state where the flap is closed, (B) is a view in a state where the flap is opened 30 degrees, and (C) is a view in a state where the flap is opened 60 degrees. It is.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side sectional view of an indoor unit 10 of an air conditioner according to an embodiment of the present invention. FIG. 2 is a perspective view of the indoor unit 10. FIG. 3 is a plan view of the decorative panel 33 of the 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.
In the following description, “upper and lower” and “inside and outside” are described with reference to the indoor unit 10 in a state where the decorative panel 33 is attached to the air conditioner body 14. Moreover, the space where the air after air-conditioning is blown out is used as a conditioned room.

The indoor unit 10 is installed in a ceiling space 13 between a ceiling 11 of the building and a ceiling plate 12 installed below the ceiling 11. The indoor unit 10 includes an air conditioner body 14 and a decorative panel 33 that covers a lower opening of the air conditioner body 14.
A hanging metal fitting 18 is attached to the outer corner of the air conditioner body 14. The air conditioner 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 air conditioner 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 air conditioner 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 air conditioner main body 14, and a rotary shaft 22 that is rotationally driven by the drive of the fan motor 21 extends downward from the fan motor 21. Is provided. 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 air conditioner main 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 air conditioner body 14 so as to cover the lower opening of the air conditioner 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 air conditioner body 14 side.

  Air outlets 37 for sending air after air conditioning 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. 6, the blower 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.

Corner panels 42 are provided at the left and right ends of the outlet 37, respectively. Further, as shown in FIGS. 2 to 4, flaps 60 for changing the blowing direction are provided at the four-way outlets 37, respectively.
The air in the conditioned room is sucked from the suction port 34 by the blower 20, passes through the filter 36, passes through the heat exchanger 30, and is subjected to heat exchange, and the air after air conditioning is sent from the outlet 37 to the conditioned room. It is done.

  FIG. 5 is a perspective view of the flap 60. 6 is a cross-sectional view taken along the line AA in FIG. 3, (A) is a diagram in a state in which the flap 60 is closed, (B) is a diagram in a state in which the flap 60 is opened 30 degrees, and (C) is a flap. It is a figure in the state which opened 60 60 degree | times. Here, the angle in the state in which the flap 60 is opened refers to an angle formed by a horizontal plane with respect to the center of the rotation shaft 61 and the inner surface of the guide portion 75 of the first guide member 70.

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 with a predetermined interval S1. Has been.
The first guide member 70 has an inner surface 70B that guides air blown from the air conditioner 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 air conditioner main body 14 after air conditioning, and an outer surface 43B that is a surface opposite to 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. 6C, the guide portion 75 is formed by being bent 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 rotating shaft 61 protruding from both ends.
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. The central support member 77 and the shaft support member 39 do not necessarily have to be provided at one central portion in the long side direction of the air outlet 37, and may or may not be plural.
The numbers of the central support members 77 and the shaft support members 39 can be appropriately changed according to the length of the long side of the flap 60 and the material of the flap 60.

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 provides a predetermined distance S1 between the first guide member 70 and the second guide member 80 and prevents the second guide member 80 from being bent.
The number of connection members 90 can be changed as appropriate according to the length of the long side of the second guide member 80 and the material of the second guide member 80.
Note that the second guide member 80 is not necessarily formed integrally with the first guide member 70 by the connection member 90, but may be configured as a separate member by, for example, being pivotally supported.

  A predetermined interval S <b> 1 is provided between the base 71 and the second guide member 80. As shown in FIG. 6, the predetermined interval S <b> 1 is such that the air after air-conditioning blown from the air conditioner main body 14 is applied to the inner surface 80 </ b> B of the second guide member 80 so that the outer surface of the first guide member 70. 70A. This interval S1 is such that after the air-conditioning, air is introduced to the outer surface 70A of the first guide member 70 to prevent or reduce the occurrence of dew on the outer surface 70A of the first guide member 70. Any interval can be used as long as air can be sent.

  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 air conditioner 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 air conditioner 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.

The second guide member 80 is provided in the vicinity of the base portion 71 so as to partially overlap the base portion 71 with respect to the short side direction.
The vicinity of the base portion 71 may be a position where the second guide member 80 can guide air to such an extent that the dew on the outer surface 70A can be prevented by flowing air after air conditioning to the outer surface 70A of the first guide member 70. .

As shown in FIG. 6 (A), the flap 60 is such that the position of the rear end of the first guide member 70 and the position of the front end of the second guide member 80 are approximately in the front-rear direction when the flap 60 is closed. It is comprised so that it may become equal. The position of the rear end of the second guide member 80 is located behind the position of the rear end of the first guide member 70.
A predetermined space S <b> 2 is provided between the rear end of the second guide member 80 when the flap 60 is closed and the inner end 101 of the air outlet 37. By providing this space S2, even if the flap 60 is provided with the second guide member 80, the flap 60 is not hindered from being opened and closed.
As shown in FIG. 6 (B), in the flap 60, when the flap 60 is opened 30 degrees, the position of the rear end of the first guide member 70 and the position of the rear end of the second guide member 80 are high. It is comprised so that it may become substantially equal height by the length direction. The position in the height direction of the rear end of the second guide member 80 is within a range in which the inner surface 80B of the second guide member 80 can guide the blown air to the outer surface 70A of the first guide member 70 through the interval S1. Appropriate changes can be made up and down. The state in which the flap 60 is opened 30 degrees is frequently used during cooling operation.
As shown in FIG. 6C, in the flap 60, the position of the rear end of the second guide member 80 is higher than the position of the rear end of the first guide member 70 in a state where the flap 60 is opened 60 degrees. It is configured to be positioned on the upper side in the height direction.
As described above, when the flap 60 is closed, opened 30 degrees, and opened 60 degrees, the inner surface 80B of the second guide member 80 causes the air after the air conditioning to pass through the first interval S1. The guide member 70 can be easily guided to the outer surface 70A.

Moreover, the 2nd guide member 80 and the base 71 are comprised so that it may become substantially parallel. The guide portion 75 is formed to be bent inward by approximately 30 degrees from the base portion 71. For this reason, the second guide member 80 and the guide portion 75 also have an angle difference of about 30 degrees. That is, as shown in FIG. 6C, the second guide member 80 is configured to be positioned substantially perpendicular to the horizontal plane when the flap 60 is opened 60 degrees.
The state in which the flap 60 is opened 60 degrees is frequently used during heating operation. When the flap 60 is opened 60 degrees during the heating operation, the warm air after air conditioning guided through the interval S1 by the second guide member 80 can be guided downward in the air outlet 37.
In addition, when the air after the air conditioning which blows off from space | interval S1 wants to guide by providing an appropriate angle rather than just under the blower outlet 37, the 2nd guide member 80 is not substantially parallel to the base 71, and is suitably You may comprise with an angle. It is also possible to appropriately change the angle at which the guide portion 75 bends while keeping the second guide member 80 and the base portion 71 substantially parallel.

Next, the operation of this embodiment will be described.
The air in the conditioned room is sucked in from the suction port 34 by the blower 20, passes through the filter 36, passes through the heat exchanger 30, and is heat-exchanged, and the air-conditioned air is sent from the blowout outlet 37 to the conditioned room. .
At this time, as shown in FIG. 6A, in the state where the flap 60 is closed, air is mainly blown out from the interval S1. As a case where air is blown out with the flap 60 closed, for example, an internal clean operation in which the inside of the air conditioner main body 14 is dried by rotating the blower 20 while the operation is stopped can be cited.
In such a state that the flap 60 is closed, the blown air is guided to the inner surface 80B of the second guide member 80 and is blown into the conditioned room through the interval S1. The guide portion 75 is formed by being bent approximately 30 degrees inward from the base portion 71 by the bent portion 73, and the second guide member 80 is provided in the vicinity of the base portion of the first guide member 70, so that it has passed the interval S1. The air is guided to the inner surface 80B of the second guide member 80 and blown in the direction of arrow A in the front direction, and is also blown in the direction of arrow B in the direction along the vicinity of the outer surface 70A of the first guide member 70. .

  As shown in FIG. 6B, in the state where the flap 60 is opened 30 degrees, the air after air conditioning is guided to the inner surface 70B of the first guide member 70 and blown in the direction of arrow C on the front. Further, the air that has passed through the interval S1 after the air conditioning is guided to the inner surface 80B of the second guide member 80, blown in the direction of the arrow E in the front direction, and along the vicinity of the outer surface 70A of the first guide member 70. It is also blown out in the direction of the arrow D.

  As shown in FIG. 6C, in the state where the flap 60 is opened 60 degrees, the air after air conditioning is guided to the inner surface 70B of the first guide member 70 and blown in the direction of arrow F on the front. Further, the air that has passed through the interval S1 after the air conditioning is guided to the inner surface 80B of the second guide member 80, blown in the direction of the arrow H in the front direction, and along the vicinity of the outer surface 70A of the first guide member 70. It is also blown out in the direction of the arrow G.

As described above, according to the present embodiment, the flap 60 guides the air after air conditioning to the conditioned room, and guides the air after air conditioning to the conditioned room. A second guide member 80 that guides to the outer surface 70A of the first guide member 70, and a connection member 90 that connects the first guide member 70 and the second guide member 80. Is provided at a distance S1 from the first guide member 70 in the direction of the outer surface 70A of the first guide member 70.
According to this configuration, the air after the air conditioning can be guided from the second guide member 80 to the outer surface 70A of the first guide member 70 through the interval S1.
Therefore, the temperature difference between the inner surface 70B and the outer surface 70A of the flap 60 is reduced, and even when the air blown from the indoor unit main body is guided by the inner surface 70B of the flap 60, the outer surface 70A is less likely to be exposed. An air conditioner including a flap can be provided.
Further, according to this configuration, since it is not necessary to provide the outer surface 70A with unevenness for preventing dew, the manufacture of the flap 60 can be facilitated.
Further, according to this configuration, it is not necessary to provide a heat insulating material on the inner surface 70B, the number of parts can be omitted, and the manufacturing cost can be reduced.
Further, according to this configuration, even when the flap 60 is closed, the blown air can be guided by the inner surface 80B of the second guide member 80 and blown into the conditioned room through the interval S1.

Further, according to the present embodiment, 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, and the first guide member The left and right ends in the long side direction of 70 and the left and right ends in the long side direction of the second guide member 80 are provided so as to substantially coincide with each other.
According to this configuration, the first guide member 70 and the second guide member 80 are disposed so as to overlap in the vertical direction in a state in which the first guide member 70 and the second guide member 80 substantially coincide with the horizontal direction in the long side direction. The air-conditioned air guided by the inner surface 80B of the guide member 80 can be efficiently guided to the outer surface 70A of the first guide member 70.

Further, according to the present embodiment, the first guide member 70 includes the base portion 71 and the guide portion 75 bent from the base portion 71.
According to this configuration, the first guide member 70 can be configured to bend, and the air-conditioned air guided by the second guide member 80 flows along the outer surface 70 </ b> A of the first guide member 70. be able to. Therefore, the air after air conditioning can be guided to the outer surface 70A of the first guide member 70 more efficiently, and the outer surface 70A of the first guide member 70 can be prevented from being exposed.

Further, according to the present embodiment, the second guide member 80 is provided so as to overlap with the base portion 71, and the length of the second guide member 80 in the short side direction is substantially the same as the length of the base portion 71 in the short side direction. Configured to equal length.
According to this configuration, the second guide member 80 can be miniaturized while air after air conditioning flows along the outer surface 70A of the first guide member 70. Manufacturing cost can be reduced.

Further, according to the present embodiment, the second guide member 80 and the base 71 are provided substantially in parallel, and the angle at which the guide 75 is bent is substantially from the base 71 toward the inner surface of the first guide member 70. Configured at 30 degrees.
According to this configuration, when the flap 60 is opened 60 degrees, the base 71 is positioned substantially perpendicular to the horizontal plane, and the second guide member 80 configured substantially parallel to the base 71 is also substantially vertical to the horizontal plane. positioned.
Therefore, in a state where the flap 60 frequently used in the heating operation is opened by 60 degrees, apart from the air-conditioned air guided to the conditioned room by the first guide member 70, the interval S1 is set by the second guide member 80. Warm air after air conditioning guided through can be guided substantially downward of the air outlet 37.

  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 the present embodiment, the decorative panel 33 has air outlets 37 that send air after air conditioning into the room along four sides, respectively, but the air outlet 37 is not necessarily provided in four directions. It is not limited to the built-in indoor unit 10.
For example, a ceiling-embedded indoor unit in which the air outlet is provided in three directions, a ceiling-embedded indoor unit in which the air outlet is provided in two directions, a ceiling-embedded indoor unit in which the air outlet is provided in one direction, and the like The present invention can also be applied to other indoor units in which a flap is provided at the air outlet.

DESCRIPTION OF SYMBOLS 10 Indoor unit 14 Air conditioner main body 20 Blower 30 Heat exchanger 33 Cosmetic panel 37 Outlet 39 Shaft support member 40 Panel main body 42 Corner panel 60 Flap 61 Rotating shaft 70 First guide member 70A Outer surface 70B Inner surface 71 Base 73 Bending Part 74 convex part 75 guide part 77 central support member 80 second guide member 80A outer surface 80B inner surface 90 connecting member S1 interval S2 space

Claims (5)

In an air conditioner including an indoor unit that houses a heat exchanger and a blower, and a flap that is provided at a blowout port of the indoor unit,
The flap guides the air after the air conditioning to the conditioned room, and the second guide member guides the air after the air conditioning to the conditioned room and guides it to the outer surface of the first guiding member. And comprising
The air conditioner characterized in that the second guide member is provided at an interval from the first guide member in the outer surface direction of the first guide member. The length in the long side direction of the second guide member has a length substantially equal to the length in the long side direction of the first guide member,
The first guide member and the second guide member are configured such that the left and right ends of the first guide member in the long side direction substantially coincide with the left and right ends of the second guide member in the long side direction. The air conditioner according to claim 1, wherein the air conditioner is provided in an overlapping manner.   The air conditioner according to claim 1 or 2, wherein the first guide member includes a base portion and a guide portion that bends from the base portion. The second guide member is provided so as to overlap the base portion,
4. The air conditioner according to claim 3, wherein a length of the second guide member in a short side direction is substantially equal to a length of the base in a short side direction. The second guide member and the base are provided substantially in parallel,
The air conditioning apparatus according to claim 4, wherein an angle at which the guide portion is bent is approximately 30 degrees from the base portion toward the inner surface of the first guide member.

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