JP2012163255A - Indoor unit of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an appearance of an indoor unit of an air conditioner from being impaired.SOLUTION: In the indoor unit of an air conditioner 100, 200 whose shell is composed of a body 1 and a panel 2 provided on the body 1 and formed with a suction port 11 and a discharge port 12, the indoor unit includes a suction flap 5 which is rotatably provided on the suction port 11 to open or block the suction port 11 and is substantially rectangular in a flat surface having long sides and short sides and a rotating member 13 which rotates the suction flap 5 via a rotating shaft along a longitudinal direction. The suction flap 5 closes under no air conditioning state to form the bottom surface of the body 1 and the rotating shaft is provided at the center in the short side width direction of the suction flap 5 or provided to be close to the center in the short side width direction.

Description

  The present invention relates to an indoor unit of an air conditioner, and more particularly to an indoor unit of an air conditioner having an improved outlet.

  The indoor unit of an air conditioner is composed of a main body and a decorative panel, and the decorative panel includes a ceiling-buried air conditioner in which a suction port for sucking indoor air and a blower outlet for blowing air into the room are formed. There is an indoor unit. In such a decorative panel for an indoor unit of a ceiling-embedded air conditioner, a portion corresponding to the suction port is a grill type (lattice type) in order to reliably take air into the indoor unit while having a design. That was the mainstream. However, such a grill-type decorative panel has been detrimental to the design of indoor units due to the recent architectural design and flow of house construction methods.

  Therefore, in an indoor unit of a ceiling-embedded air conditioner, a blower outlet and a suction port are arranged in parallel to a flat panel which is a flat bottom panel constituting the bottom surface of the indoor unit. There has been proposed a structure in which a movable panel (opening cover) that opens and closes is provided and a design property is provided in a portion corresponding to the suction port of the decorative panel (for example, see Patent Documents 1 and 2).

  In addition, the indoor unit of a ceiling-embedded air conditioner is provided with a movable panel that opens the suction port during operation and closes the suction port when stopped, so that the design corresponding to the suction port of the decorative panel is provided. What has been provided is proposed (for example, refer to Patent Document 3).

JP 2007-292327 A (see, for example, paragraphs [0022] and [0023] of FIGS. 1 and 2 in the specification) JP 2007-155309 A (see, for example, paragraphs [0045] and [0046] of FIGS. 1 and 2 in the specification) JP 2009-41851 A (see, for example, paragraph [0040] of the specification, FIG. 1, FIG. 2 and FIG. 6)

  Since the technology described in Patent Documents 1 and 2 opens the movable panel to open the suction port, the allowance of the movable panel with respect to the flat panel increases, so the design of the indoor unit during the operation of the air conditioner is improved. I was losing.

  The technologies described in Patent Documents 1 to 3 are mechanisms that rotate the movable panel when the suction port is opened and closed. Here, if the width of the movable panel is large, the weight increases accordingly. In such a case, a high-torque motor or a complicated rotating mechanism (moving mechanism) is required for the power for rotating the movable panel.

  The present invention has been made to solve at least one of the above-described problems, and an object thereof is to suppress the appearance of an indoor unit of an air conditioner from being damaged.

  An indoor unit of an air conditioner according to the present invention is an air conditioner indoor unit that is provided in the main body and includes a panel having a suction port and a blower outlet formed therein, and is rotatable to the suction port. The suction port is opened or closed, the plane having the long side and the short side is a substantially rectangular suction flap, and the suction flap is rotated by a rotation axis along the long side direction. The suction flap is closed during non-air-conditioning to form the bottom surface of the main body, and the rotation axis is provided from the center in the short side width direction or the center in the short side width direction of the suction flap.

  In the indoor unit for an air conditioner according to the present invention, the rotation axis of the suction flap is provided from the center in the short side width direction or the center in the short side width direction of the suction flap. It can suppress that the external appearance of this is impaired.

It is the whole figure of the state which looked up at the indoor unit of the air conditioner concerning Embodiment 1 from the bottom to information. It is sectional drawing in the dotted line AA of the indoor unit shown in FIG. 1, and shows the state which the suction flap and the blowout flap closed. It is sectional drawing in the dotted line AA of the indoor unit shown in FIG. 1, and shows the state which the suction flap and the blowout flap open | released. The suction flap shown in FIG. 1 and its vicinity will be described. It is sectional drawing of the grill surroundings of the indoor unit of the air conditioner which concerns on Embodiment 2. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is an overall view of the air conditioner indoor unit 100 according to Embodiment 1 as viewed upward from below. FIG. 2 is a cross-sectional view taken along the dotted line AA of the indoor unit 100 shown in FIG. 1 and shows a state in which the suction flap 5 and the blowout flap 6 are closed. 3 is a cross-sectional view taken along the dotted line AA of the indoor unit 100 shown in FIG. 1, and shows a state in which the suction flap 5 and the blowout flap 6 are opened. FIG. 4 illustrates the suction flap 5a shown in FIG. 1 and the vicinity thereof. In addition, in the following drawings including FIG. 1, the relationship of the size of each component may be different from the actual one.
In the indoor unit 100, the suction flap 5 (movable panel) provided in the suction port 11 is improved, and the appearance of the indoor unit 100 during operation (air-conditioning) and when stopped (during non-air-conditioning) is impaired. It is what suppresses it.

[Configuration of indoor unit 100]
As shown in FIG. 1, in the indoor unit 100, an outline of the indoor unit 100 is configured by a main body 1 and a panel 2 provided on the bottom surface of the main body 1. The panel 2 is provided with a side cover 3 disposed on both sides in the longitudinal direction, and a grill 4 disposed between the side covers 3 (central portion). Here, FIG. 1 illustrates an indoor unit 100 that is a ceiling-embedded type.

As shown in FIGS. 2 and 3, the panel 2 is formed with a suction port 11 for sucking indoor air into the indoor unit 100 and a blower outlet 12 for supplying conditioned air to the air-conditioning target area. .
Further, the main body 1 has a suction flap 5 for opening or closing the suction port 11, a blowout flap 6 for opening or closing the blowout port 12, a rotating means for rotating the suction flap 5 and the blowout flap 6 (see FIG. 4), A heat exchanger 7 that is arranged in an air passage from the suction port 11 to the air outlet 12 and transmits the hot or cold heat of the refrigerant to the air to generate air-conditioned air. The air is sucked from the air inlet 11 and the air is sucked from the air outlet 12. Blowing means 8 that blows out, a drain pan 9 that stores the condensed water generated by the heat exchanger 7 as drain water, and a filter 10 that collects dust in the air sucked from the suction port 11 are provided.

The suction port 11 is an opening for forcibly taking indoor air into the indoor unit 100 by the blowing means 8. Two inlets 11 are formed in the panel 2, and one of the inlets 11 adjacent to the outlet 12 is referred to as an inlet 11 a and the other is referred to as an inlet 11 b. In addition, in FIGS. 1-3, although the thing in which the two suction inlets 11 were formed is shown in figure, it is not specifically limited. As shown in FIG. 1, the shape of the suction port 11 is preferably a substantially rectangular shape having a long side in the longitudinal direction of the panel 2, for example.
The blower outlet 12 is an opening through which room air passes when the conditioned air sucked from the inlet 11 and passed through the heat exchanger 7 is supplied to the air-conditioning target area. The air outlet 12 is formed in the panel 2 with an opening. As shown in FIG. 1, the shape of the blower outlet 12 is good to make it the substantially rectangular shape which makes the longitudinal direction of the panel 2 a long side, for example.

The suction flap 5 is rotatably provided in the suction port 11, opens or closes the suction port 11, and a plane having a long side and a short side has a substantially rectangular shape. Hereinafter, the suction flap 5 will be described in detail.
As shown in FIG. 2, the suction flap 5 closes the suction port 11 during non-air conditioning. That is, the suction flap 5 is closed during non-air-conditioning to form the bottom surface of the main body 1. Further, as shown in FIG. 3, the suction flap 5 adjusts the direction of the conditioned air that is blown out while maintaining a predetermined rotation angle or changing the rotation angle during air conditioning. That is, when the suction port 11 is opened, a room air suction area can be secured.

Moreover, as shown in FIG. 4, the suction flap 5 is rotatably supported by the rotation means 13 via the axis | shaft 5B at the suction inlet 11. As shown in FIG. The shaft 5 </ b> B is provided substantially parallel to the long side of the suction flap 5. The rotation fulcrum 5C, which is a connection point between the shaft 5B and the suction flap 5, bisects both short sides of the suction flap 5 and is parallel to the long side or the center line C- It is assumed that C is provided. That is, the rotation fulcrum 5C is provided not on the longitudinal side (end) of the suction flap 5 but on the center line CC or the center line CC.
A line extending from the shaft 5B so as to pass through the rotation fulcrum 5C corresponds to the rotation axis of the suction flap 5. And this rotating shaft is provided from the center of the short side width direction of the suction flap 5, or the center of the short side width direction.

Moreover, the suction flap 5 is good to narrow the width | variety. Since the weight of the suction flap 5 is reduced by the amount that the width of the suction flap 5 is reduced, it is possible to prevent a large load from being applied to the rotating means 13. That is, the suction flap 5 can be reliably rotated without generating a high torque by the rotating means 13 or adopting a complicated rotating mechanism (moving mechanism).
In addition, let the thing provided in the suction inlet 11a among the suction flaps 5 be called the suction flap 5a, and let the thing provided in the suction inlet 11b be called the suction flap 5b. Of the long side ends of the suction flaps 5a and 5b, the ones that protrude downward with respect to the bottom surface of the indoor unit 100 during the operation of the air conditioner are referred to as front end portions 5aA and 5bA, respectively. Further, the end portions of the long sides of the other suction flaps 5a and 5b are referred to as tip portions 5aB and 5bB, respectively.

As shown in FIG. 2, the blowout flap 6 closes the blowout opening 12 when the air conditioner is not operating. The blow-off flap 6 adjusts the direction of the conditioned air that is blown out while maintaining a predetermined rotation angle or changing the rotation angle when the air conditioner is operating as shown in FIG. It is. That is, by opening the air outlet 12, it is possible to secure a blown area of the conditioned air.
The blowout flap 6 is also provided at the blowout port 12 so as to be rotatable by a rotating means 13 via a shaft portion (not shown).

The rotating means 13 is connected to the suction flap 5 via the shaft 5B and rotates the suction flap 5. The rotating means 13 is connected to the blowing flap 6 via a shaft (not shown) and rotates the blowing flap 6.
The rotating means 13 is provided to be held by the panel 2. Specifically, each is provided in the space which is the side surface part (corresponding to the thickness of the panel 2) of the suction inlet 11 formed in the panel 2 and the blower outlet 12.
As shown in FIG. 4, the rotation means 13 for the suction flap 5 is connected to the side of the short side of the suction flap 5. Here, in FIG. 1 to FIG. 4, the rotating means for rotating the blowout flap 6 is not shown, but is connected to the side of the short side of the blowout flap 6 in the same manner as the suction flap 5. Good.
Further, as the rotating means 13, for example, a stepping motor may be employed.

The heat exchanger 7 functions as an evaporator during cooling operation to cool the air, and functions as a condenser (heat radiator) during heating operation to heat the air. The heat exchanger 7 is disposed in an air passage (a central portion inside the main body 1) from the inlet 11 to the outlet 12. Moreover, although the heat exchanger 7 shape has illustrated that the vertical cross section has a substantially V shape, it is not specifically limited.
The heat exchanger 7 may be a cross fin type fin-and-tube heat exchanger composed of a heat transfer tube and a large number of fins, for example. In addition, the heat exchanger 7 is connected to a compressor, an outdoor heat exchanger, and a throttling device (not shown) to constitute a refrigeration cycle.

  The blower means 8 sucks room air from the suction port 11 and blows out conditioned air from the blowout port 12. The air blowing means 8 is disposed in the air path from the suction port 11 to the blower port 12. In addition, as the ventilation means 8, it is good to employ | adopt a line flow fan, for example.

The drain pan 9 stores the condensed water generated by the heat exchanger 7 as drain water. The drain pan 9 is provided below (lower) the heat exchanger 7.
The filter 10 collects dust and the like in the air sucked from the suction port 11. The filter 10 is provided in the air path from the inlet 11 to the outlet 12 (the back of the inlet 11). That is, the filter 10 is provided downstream of the opening surface of the suction port 11 and upstream of the heat exchanger 7 in the indoor air flow direction. In addition, what was provided in the back of the suction inlet 11a among the filters 10 is called the filter 10a, and what was provided in the back of the suction inlet 11b shall be called the filter 10b.

[Operations of suction flap 5 and blowing flap 6]
When the air conditioner is stopped, the indoor unit 100 is in a state in which the suction flap 5 closes the suction port 11 and the blowout flap 6 closes the blowout port 12. The bottom surface of the indoor unit 100 in this state is a flat surface constituted by the panel 2, the side cover 3, the grill 4, the suction flap 5, and the blowout flap 6. Thereby, when the air conditioner is stopped, the flat surface is increased as compared with the conventional panel, so that the design surface can be improved. That is, it is possible to suppress the appearance of the indoor unit 100 from being damaged when the air conditioner is stopped.

  During the operation of the air conditioner, the indoor unit 100 rotates the suction flap 5 by the power of the rotating means 13 to open the suction port 11, and rotates the blowout flap 6 to open the air outlet 12. It is in a state. In this state, the tip portion 5aA and the tip portion 5bA protrude from the bottom surface of the indoor unit 100. However, in the indoor unit 100 of the air conditioner according to the first embodiment, the rotation fulcrum 5C is not the longitudinal side (end) of the suction flap 5, but the center line CC or the center line C- Since it is provided from C, the allowance (projection amount) in the vertically downward direction with respect to the panel 2 is reduced, and the design surface during operation can be improved. That is, the appearance of the indoor unit 100 during the operation of the air conditioner is suppressed from being damaged. If a suction flap 5 having a narrow width (smaller short side) is used, the vertical downward allowance (projection amount) of the suction flap 5 with respect to the panel 2 is reduced. Needless to say, the appearance of the indoor unit 100 is further prevented from being damaged.

[Air flow]
In the indoor unit 100 during operation of the air conditioner, the suction flap 5 and the blowout flap 6 rotate, and the suction port 11 and the blowout port 12 are opened. The room air is forcibly sucked into the indoor unit 100 from the suction port 11 by the blowing means 8. The room air sucked into the indoor unit 100 from the suction port 11 is sent to the heat exchanger 7 after dust and the like are collected by the filter 10. The air sent to the heat exchanger 7 is sent to the blowing means 8 after receiving the hot or cold heat of the refrigerant. The air sent into the blowing means 8 is forcibly supplied into the room as conditioned air from the blowout port 12.

[Effect of indoor unit 100 of air conditioner]
The indoor unit 100 when the air conditioner according to Embodiment 1 is stopped is a flat surface in which the bottom surface of the indoor unit 100 is configured by the panel 2, the side cover 3, the grill 4, the suction flap 5, and the blowout flap 6. It has become. Thereby, it is suppressed that the external appearance of the indoor unit 100 at the time of a stop of an air conditioner will be impaired.
In addition, in the indoor unit 100 of the air conditioner according to the first embodiment, the rotation fulcrum 5C is provided from the center line C-C rather than the longitudinal side, so that the vertical downward direction with respect to the panel 2 The allowance (protrusion amount) of is reduced Thereby, it is suppressed that the external appearance of the indoor unit 100 at the time of driving | running of an air conditioner will be impaired.

The rotation means 13 is provided in a space that is a side surface portion (corresponding to the thickness of the panel 2) of the suction port 11 and the air outlet 12 formed in the panel 2. Thereby, if the stepping motor which is a small motor is employ | adopted as the rotation means 13, the thickness of the panel 2 can be made thin. That is, the indoor unit 100 can be made compact.
The rotation means 13 may be controlled so that the rotation angles of the two suction flaps 5a and 5b are the same. Thereby, it is suppressed that the external appearance of the indoor unit 100 at the time of driving | running of an air conditioner will be impaired.

In addition, the indoor unit 100 of the air conditioner is preferably installed on the wall side of the room, and the back direction of the indoor unit 100 at that time is preferably set to the direction from the suction flap 5a to the suction flap 5b. Here, the back direction is a direction from the front side of the indoor unit 100 toward the wall. Moreover, although it described above that the rotation fulcrum 5C is provided from the center line CC or the center line CC, the rotation fulcrum 5C is further connected to the center line C-C. It should be biased to the side. When the indoor unit 100 is installed in this way, when the suction flap 5 is opened, the suction port 11 is opened to the wall side.
Thereby, since the part opened to the wall side among the suction inlets 11 is hidden by the suction flap 5, it becomes difficult for a user to see. Thereby, it can suppress that the external appearance of the indoor unit 100 at the time of driving | running of an air conditioner is impaired.
Moreover, since the rotation fulcrum 5C is biased toward the outlet 12 with respect to the center line C-C, the area of the portion of the suction inlet 11 where the front side is opened is reduced. That is, the area where the front open part of the suction port 11 can be seen is reduced. Thereby, it can suppress that the external appearance of the indoor unit 100 at the time of driving | running of an air conditioner is impaired.

  Each of the two suction flaps 5a and 5b is provided with one rotation means 13. Therefore, the rotating means 13 may be controlled so that one of the suction flaps 5 is opened and the other is closed according to the situation during operation. Alternatively, the rotation means 13 may be controlled so that the suction flap 5 can be moved separately such that the suction flap 5a and the suction flap 5b have different opening angles. Even if it does in this way, it can control that the appearance of indoor unit 100 at the time of operation of an air harmony machine will be spoiled.

  Further, the suction port 11b may be configured such that the suction port 11b is slightly opened even when the suction flap 5b is closed. Thereby, at the time of driving | running | working of a low load state, it can drive | operate in the state which the suction flap 5b by the side of the suction inlet 11b closed. Moreover, it can suppress that the external appearance of the indoor unit 100 at the time of driving | running of an air conditioner is impaired.

Embodiment 2. FIG.
Although the indoor unit 100 of the air conditioner according to Embodiment 1 suppresses the appearance of the indoor unit 100 from being damaged, the indoor unit 200 of the air conditioner according to Embodiment 2 is In addition, it is also considered to attach and detach the filter 10 for maintenance or the like.

  FIG. 5 is a cross-sectional view around the grill of the indoor unit 200 of the air conditioner according to the second embodiment. FIG. 5 is a view showing a state where the grill 4 is rotated about the shaft 4A and opened. Further, in the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and differences from the first embodiment will be mainly described.

The indoor unit 200 of the air conditioner according to Embodiment 2 is provided with a filter mounting portion 14 that holds the filter 10. The filter attachment portion 14 is provided in the main body 1 and holds the filter 10. As shown in FIG. 5, the filter mounting portion 14 that holds the filter 10a is referred to as a filter mounting portion 14a, and the filter holding portion that holds the filter 10b is referred to as a filter mounting portion 14b.
The grill 4 is provided between the adjacent suction ports 11 and can open and close between the suction ports 11. The grill 4 has a rotating shaft 4A, and can be opened and closed by rotating about the rotating shaft 4A. The filter mounting portion 14 is exposed by opening the grill 4. The grill 4 is provided between the suction port 11a and the suction port 11b. In order to suppress interference between the grill 4 and the suction flap 5 when the grill 4 is opened and closed, a gap D may be formed between the grill 4 and the suction flap 5.

[Description of operation]
When removing the filter 10, the grill 4 is opened to expose the filter mounting portion 14. The filter 10 can be removed by pulling a knob (not shown) provided on the filter 10 downward.
When the filter 10 is attached to the filter attachment portion 14, the filter 10 is attached to the filter 10 while the grill 4 is opened and the filter attachment portion 14 is exposed.

In the indoor unit 200 for an air conditioner according to the second embodiment, the grill 4 can be opened and closed by rotating around the rotation shaft 4A, so that the filter 10 can be attached and detached without removing the panel 2 and other components. Can do. Thereby, the user can attach and detach the filter 10 easily. Note that the grill 4 may not be provided with the rotating shaft 4A. In this case, a claw portion (not shown) for holding the grill 4 on the panel 2 may be provided instead of the rotating shaft 4A.
Further, since the gap D is formed between the grill 4 and the suction flap 5, the interference between the grill 4 and the suction flap 5 is suppressed. Thereby, the user can attach and detach the filter 10 easily.

  1 body, 2 panel, 3 side cover, 4 grille, 4A shaft, 5 suction flap, 5a, 5b suction flap, 5aA, 5bA tip, 5aB, 5bB tip, 5B shaft, 5C rotating fulcrum, 6 blowout flap, 7 Heat exchanger, 8 air blowing means, 9 drain pan, 10 filter, 10a, 10b filter, 11 suction port, 11a, 11b suction port, 12 air outlet, 13 rotating means, 14 filter mounting part, 14a, 14b filter mounting part, 100 , 200 indoor unit, D interval.

Claims (5)

The body,
In the indoor unit of an air conditioner that is provided in the main body and has an outer wall constituted by a panel in which an inlet and an outlet are formed,
A suction flap that is provided rotatably in the suction port and opens or closes the suction port, and a plane having a long side and a short side is substantially rectangular,
Rotating means for rotating the suction flap by a rotation axis along the long side direction,
The suction flap is closed at the time of non-air conditioning to form the bottom surface of the main body,
The rotation axis is
An indoor unit of an air conditioner, wherein the suction flap is provided from the center in the short side width direction or from the center in the short side width direction. The indoor unit of an air conditioner according to claim 1, wherein a stepping motor is used as the rotating means. At least two or more suction ports are formed in the panel,
The suction flap is provided in each of the suction ports;
The rotating means is provided on each of the plurality of suction flaps;
The indoor unit of an air conditioner according to claim 1 or 2, wherein the suction flaps are independently rotated. A filter provided in an air path from the suction port to the blowout port;
A filter mounting portion provided in the main body and holding the filter;
A grill provided between adjacent suction ports, and capable of opening and closing between the suction ports;
The indoor unit of an air conditioner according to any one of claims 1 to 3, wherein the grill is opened to expose the filter mounting portion, and the filter is detachable. The indoor unit of an air conditioner according to claim 4, wherein the grill has a rotation shaft at an end of the grill and rotates around the rotation shaft.

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