JP2016164463A - Indoor unit of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indoor unit of an air conditioner capable of improving a speed of blown-out air while suppressing increase of a fan rotating speed and cost-up, and distributing conditioned air to a specific place.SOLUTION: An indoor unit 1 of an air conditioner C includes a box-shaped housing 7 partitioned by a depth plate 7t at its depth side and partitioned by an exterior member 2 at a front side, a fan 12 disposed in the housing 7, a heat exchanger 13 disposed at a blowout port side of the fan 12, a suction port 3 and the blowout port 5 formed on the exterior member 2, and louvers 6a, 6b disposed on the blowout port 5 for distributing the conditioned air having been subjected to heat exchange by the heat exchanger 13. The louvers 6a, 6b are composed of divided louvers 6a, 6b divided into a plurality of louvers, and the fan 12 distributes the air in a state of closing at least one divided louver among the plurality of divided louvers 6a, 6b at the blowout port 5.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an indoor unit of an air conditioner.

The technical challenges of the current air conditioner are comfort and energy saving. Comfort is to provide the necessary air conditioning where needed.
Recently, partial air-conditioning has been carried out in order to balance the two issues of comfort and energy saving. With partial air conditioning, air that has been actively conditioned is sent to a place where air conditioning is desired, and it is not necessary to send air-conditioned air to other places while ensuring the comfort of the place, leading to energy saving.
It is a louver provided in the indoor unit outlet that controls the direction of the air flow so that air can be actively sent to the place where the air conditioning is desired. For example, as shown in FIG. 16, a louver 201 is provided at each outlet 105. FIG. 16 is a bottom view showing an indoor unit of a conventional air conditioner.

In FIG. 17, sectional drawing of an example around the conventional blower outlet is shown. FIG. 17 is a cross-sectional view of the louver 201 cut in the vertical direction.
The indoor unit 101 of the air conditioner is installed embedded in the ceiling 115.
A rectangular flat decorative panel 102 is provided on the lower surface of the indoor unit 101.
A suction port 103 through which indoor air is sucked by a fan (not shown) is disposed on the center side of the indoor unit 101, and a suction grill 104 is provided in the suction port 103 to enhance design properties.

  A heat exchanger 113 is provided outside the upper portion of the suction port 103 to exchange the heat of the sucked air (arrow β11 in FIG. 17) with the refrigerant to obtain conditioned air. And the blower outlet 105 for blowing out conditioned air (arrow (beta) 12 of FIG. 17) is provided in the outer lower side of the heat exchanger 113. FIG. Below the heat exchanger 113, a water receiver 114 that receives the moisture condensed in the heat exchanger 113 is provided.

The blower outlet 105 is provided with a louver 201 that is supported in a cantilevered manner. The louver 201 has a function of opening and closing the air outlet 105 by rotating around the axis (in the direction of arrow α10 in FIG. 17).
The louver 201 is not divided and is composed of one component (one long flat plate). The louver 201 also serves as a lid for closing the air outlet 105, and enhances the design of the decorative panel 102.

In FIG. 18, sectional drawing of the other examples of the surroundings of the blower outlet which cut the conventional louver in the perpendicular direction is shown. FIG. 18 is a cross-sectional view of the louver 202 cut in the vertical direction.
Another example of the louver 202 is composed of a single component. In addition, the louver 202 rotates around the louver rotation center 203 as a rotation axis, and also serves as a lid that closes the outlet 105.

  By the way, there are two types of air conditioners: home use and business use. For home use, air conditioning is mainly applied to humans (animals), but for business use, not only humans but also electronic devices (computers, etc.) and items that require temperature control (foods, etc.) are air-conditioned. It is carried out. Thus, since the commercial air conditioner has various uses, the commercial air conditioner is provided with various functions.

  One of the functions is a “high ceiling compatible” function. For example, when an indoor unit of an air conditioner is installed in a room where the ceiling of a warehouse or the like is high and the distance between the ceiling and the floor is far, the wind from the outlet 105 (see FIG. 16) of the indoor unit is the distance during heating. May not reach the floor directly because of the distance. In the case of cold air, the density of the air of the cold air is relatively higher than that of the other air, resulting in a downward flow, and the cold air reaches the floor by natural convection due to the difference in air density. On the other hand, since the density of the warm air during heating is relatively low compared to other air, it becomes an upward flow, so even if it is blown downward as warm air, it does not reach the floor or is difficult.

  Therefore, the high ceiling function provided in the air conditioner is used in such a case. That is, the blowing air speed at the indoor unit outlet 105 (see FIG. 16) is increased so that the warm air reaches the floor. Specifically, the rotational speed of the fan mounted on the indoor unit 101 is increased to increase the blown air speed of the conditioned air blown out by the fan.

The high ceiling function of this commercial air conditioner is also a means for realizing the partial air conditioning. That is, even if the distance is long, the hot air can be delivered to the place by increasing the blowing air speed. Therefore, since the place can be positively heated, comfort is ensured and energy is saved. Do not send warm air to other locations.
There is Patent Literature 1 as a prior art of the technology.

JP 2007-132578 A

By the way, the above-mentioned function corresponding to the high ceiling generally corresponds to a distance between the ceiling and the floor of about 4 to 5 m. Therefore, there is no problem that conditioned air does not reach up to this distance.
On the other hand, commercial air conditioners have a need to air-condition warehouses with higher ceilings. There is also a need to increase the blown air speed to enhance partial air conditioning.
In order to respond to these needs, there is a method of responding with a custom-made air conditioner that satisfies these needs. However, because it is a custom-made item, the price has soared, and it is not very happy for users.

  Alternatively, a method of strengthening the above-described high ceiling function can be considered. Specifically, the rotational speed of the fan is further increased to further increase the blowing air speed at the outlet 105. However, in this case, since the fan rotation speed is increased, the input current of the fan is increased, and energy saving cannot be said.

  The present invention has been devised in view of the above circumstances, and is an indoor unit of an air conditioner that can improve the blown air speed while suppressing an increase in fan rotation speed and an increase in cost, and can send conditioned air to a specific place. The purpose is to provide.

  In order to solve the above problems, an indoor unit of an air conditioner according to the first aspect of the present invention includes a box-shaped housing in which a back side is partitioned by a back plate and a front side is partitioned by an exterior member, and is disposed in the housing Fan, a heat exchanger disposed on the blower outlet side of the fan, a suction port and a blower outlet disposed on the exterior member, and a heat exchanger disposed on the blower outlet and heat-exchanged by the heat exchanger A louver that blows conditioned air, and the louver is divided into a plurality of divided louvers, and the fan blows air while at least one of the divided louvers at the outlet is closed. Is going.

  An indoor unit of an air conditioner according to a second aspect of the present invention includes a box-shaped housing in which a rear side is partitioned by a back plate and a front side is partitioned by an exterior member, a fan disposed in the housing, and the fan A heat exchanger arranged on the air outlet side, a suction port and an air outlet arranged in the exterior member, and a louver that blows out conditioned air that is arranged in the air outlet and heat-exchanged by the heat exchanger. The louver is divided into a plurality of divided louvers, the divided louvers are formed by being divided in the short direction of the air outlet, and the divided louver is moved so as to narrow the air outlet. It is being blown.

  ADVANTAGE OF THE INVENTION According to this invention, the indoor unit of the air conditioner which can improve a blowing wind speed, suppressing the raise of a fan rotational speed and a cost increase.

The bottom view which looked at the indoor unit of the air conditioner of Embodiment 1 which concerns on this invention from the decorative panel side (indoor side) which comprises a lower surface. FIG. 2 is a cross-sectional view taken along the line AA in FIG. The figure which shows the other example of the AA cross section of FIG. Sectional drawing around the blower outlet of the indoor unit which adjusted the position of each division | segmentation louver of Embodiment 1 so that a blower outlet became narrow. The longitudinal cross-sectional view around the blower outlet of the indoor unit of Embodiment 2. FIG. (A), (b), (c) is a longitudinal cross-sectional view which shows the blower outlet periphery which shows the example of the opening operation | movement of the unequal division | segmentation louver of Embodiment 2. FIG. The longitudinal cross-sectional view around the blower outlet of the indoor unit of Embodiment 3. FIG. (A)-(c) is sectional drawing around the blower outlet of the indoor unit which adjusted the position of each division | segmentation lap louver of Embodiment 3 so that a blower outlet became narrow. Sectional drawing around the blower outlet of the indoor unit of Embodiment 4. FIG. The perspective view which shows the leakage flow prevention shape of the division | segmentation louver of Embodiment 4. FIG. The bottom view which shows the indoor unit of the air conditioner seen from the decorative panel side of Embodiment 5. FIG. The bottom view of the indoor unit of the air conditioner seen from the decorative panel side of the sixth embodiment. The bottom view of the indoor unit of the air conditioner seen from the decorative panel side of Embodiment 7. The bottom view of the indoor unit of the air conditioner seen from the decorative panel side of Modification 1. The bottom view of the indoor unit of the air conditioner seen from the decorative panel side of Modification 2. The bottom view which shows the indoor unit of the conventional air conditioner. Sectional drawing of an example around the blower outlet which cut the conventional louver in the perpendicular direction. Sectional drawing of the other examples around the blower outlet which cut the conventional louver vertically

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
The present invention relates to a structure of an air outlet that reliably delivers hot air from an indoor unit installed on a high ceiling or the like to a floor surface in an air conditioner.

<< Embodiment 1 >>
Embodiment 1 of the present invention will be described with reference to FIGS.
FIG. 1 is a bottom view of an indoor unit of an air conditioner according to Embodiment 1 of the present invention as viewed from a decorative panel side (indoor side) forming a bottom surface.
FIG. 2 shows a cross section taken along the line AA of FIG.
The indoor unit 1 of the air conditioner C according to the first embodiment is mainly used for business use, for example, a conference room of a business building, an office room, a warehouse for storing food, a gymnasium, or the like. .

The indoor unit 1 requires air conditioned in a distant position or a specific place.
The indoor unit 1 is embedded and installed above the ceiling 15, for example. The indoor unit 1 is formed of a box-shaped housing 7 whose upper part is partitioned by a top plate 7t and whose lower part is partitioned by a decorative panel 2.
As shown in FIG. 2, the indoor unit 1 has a motor 11 for driving a turbofan 12 attached to a substantially center of a substantially rectangular housing 7, and a heat exchanger 13 is provided around the turbofan 12. Yes.

Below the heat exchanger 13, a water receiver 14 that stores the dew water that is exposed to the heat exchanger 13 is disposed with a concave shape.
A decorative panel 2 is disposed on the lower surface of the indoor unit 1 that is substantially flush with the ceiling 15.
A suction port 3 is disposed below the turbofan 12. Four blower outlets 5 are arranged on the outer lower side of the heat exchanger 7 and outside the inlet 3 (see FIG. 1). That is, the suction port 3 is provided in the center of the decorative panel 2, and the four blowout ports 5 are provided in the decorative panel 2 around the suction port 3.

The blower outlet 5 is formed in an elongated rectangular shape when viewed from below. The four outlets 5 have substantially the same shape.
The air sucked from the suction port 3 is heat-exchanged by the heat exchanger 13, and is blown out into the room from the blow-out port 5 by the blowing force of the turbo fan 12 (see arrow α1b in FIG. 2). The air blown into the room from the air outlet 5 is controlled by equally divided louvers 6a and 6b (detailed later). Note that the indoor unit 1 of the air conditioner has a high ceiling compatible setting function that increases the rotational speed of the turbo fan 12 when the conditioned air is blown away.

As shown in FIG. 2, the bell mouth 10, the electrical box 9, the filter 8, and the suction grill 4 are disposed below the turbo fan 12 in this order.
The bell mouth 10 rectifies the air sucked from the air outlet 5 so as to go to the turbo fan 12.

The electric box 9 is a control unit of the air conditioner C. The electric box 9 has a microcomputer, an A / D / D / A converter, a drive circuit for the turbo fan 12, a drive circuit for the equally divided louvers 6a and 6b, an open / close angle sensing circuit for the equally divided louvers 6a and 6b, and the like. Configured.
The filter 8 removes dust contained in indoor air sucked from the air outlet 5. The suction grill 4 has a lattice shape, covers the interior of the indoor unit 1 on the lower surface side, and also has the design of the indoor unit 1.

  The flow of air passing through the interior of the indoor unit 1 is caused by the rotation of the turbo fan 12 by the driving force of the motor 11 so that indoor air is sucked from the suction grill 4 of the suction port 5 as indicated by the arrow α1a in FIG. Be turned. The sucked air passes through the filter 8 to remove dust, is rectified by the bell mouth 10, and is guided to the turbo fan 12. The air sucked into the turbofan 12 passes through the heat exchanger 13 and exchanges heat with the refrigerant to be air conditioned. Air conditioned (hereinafter referred to as conditioned air) is sent from the blowout port 5 into the lower room as indicated by an arrow α1b in FIG.

As shown in FIG. 1, visible from the room side are a decorative panel 2, a suction grill 4 disposed in the suction port 3, and the following equally divided louvers 6 a and 6 b provided in the air outlet 5.
A pair of equally divided louvers 6a and 6b are attached to the outlet 5 so as to divide the lateral direction into two. As shown in FIG. 2, the equally divided louvers 6 a and 6 b are shaft-supported in a cantilever manner and are members that open and close the air outlet 5. The equally divided louvers 6a and 6b are configured to divide the short direction of the air outlet 5 substantially equally.

The equally divided louvers 6a and 6b are formed by injection molding using a resin such as PP (polypropylene) or ABS (Acrylonitrile Butadiene Styrene) resin. The equally divided louvers 6a and 6b may be formed of other materials.
The equally divided louvers 6a and 6b open and close the air outlet 5 to be attached by rotating around a supported axis by using a motor, a speed reduction mechanism and the like (not shown), respectively. FIG. 1 shows a state where the equally divided louvers 6a and 6b are closed. In the vicinity of the equally divided louvers 6a and 6b, angle sensors (not shown) for detecting the respective opening angles θa and θb of the equally divided louvers 6a and 6b are disposed. The angles of the equally divided louvers 6a and 6b may be detected by measuring the angles of the motor and the speed reduction mechanism that drive the equally divided louvers 6a and 6b with an angle sensor. For example, a stepping motor may be used and an angle sensor may not be used.

By controlling at least one of the equally divided louvers 6a and 6b to be in an open state, the location where the conditioned air is sent and the blowing power of the conditioned air are adjusted.
For example, as shown in FIG. 2, the equally divided louver 6a is opened and the equally divided louver 6b is closed. FIG. 2 shows a state where only the equally divided louver 6b on the center side is open.

This narrows the opening area of the outlet 5 by reducing the angle at which the equally divided louver 6a is opened and closing the equally divided louver 6b.
Air that has been sucked in from the air outlet 5 (arrow α1a in FIG. 2) and air-conditioned can be blown out strongly from the opening of the air outlet 5 throttled by the equally divided louver 6a (arrow α1b in FIG. 2). On the other hand, by making the area where the split louver 6a is opened relatively large, the conditioned air that is air-conditioned can be sent in a diffuse manner. In this way, by controlling only the equally divided louver 6a to open, the conditioned air can be sent to the side of the room farther away or diffusely sent.

FIG. 3 shows another example of the AA cross section of FIG.
Similarly, as shown in FIG. 3, the state where the equally divided louver 6b is opened is adjusted, and the equally divided louver 6a is adjusted to be closed.
That is, the opening area of the outlet 5 is reduced by reducing the area of opening the equally divided louver 6b and closing the equally divided louver 6a. On the other hand, by making the area where the divided louver 6b is opened relatively large, air conditioned can be sent over a wide area (space).

  The conditioned air sucked from the outlet 5 (arrow α2a in FIG. 3) and air-conditioned can be blown out strongly from the opening of the outlet 5 narrowed by the equally divided louver 6b (arrow α2b in FIG. 3). . On the other hand, by relatively increasing the area where the divided louver 6b is opened (the opening area of the outlet 5), the conditioned air can be sent over a wide area (space) (see FIG. 3). Arrow α2b). Thus, by controlling only the equally divided louver 6b to open, the conditioned air can be sent far away from the center side of the room or in a wide range.

The effect of the indoor unit 1 of the air conditioner C will be described.
The equally divided louvers 6a and 6b shown in FIGS. 1 and 2 are configured so that the louver that closes the outlet 5 is divided into two parts, and each louver rotates independently. In order to solve the above problem (sending conditioned air to a distant place or a specific place) with this configuration, one of the equally divided louvers 6a and 6b divided into two is kept closed.

  In FIG. 2 or FIG. 3, the air outlet 5 is closed with the equally divided louver 6 b of the equally divided louvers 6 a and 6 b when the air inlet operation of the indoor unit 1 is opened and the air conditioning operation is performed in this state. The opening of is narrow. Therefore, since the conditioned air of the same air volume is blown out from the narrow opening of the blow-out opening 5, the blow-out air speed is increased, and the hot air can easily reach a far place, for example, the floor.

As described above, by either one of the equally divided louvers 6a and 6b, the opening area formed in the outlet 5 is narrowed down and the air-conditioned air is blown out so that the air is conditioned in a distant place or a specific place. Similarly, both the equally divided louvers 6a and 6b can reduce the opening area formed in the outlet 5 and blow out air-conditioned air, so that it can be distant or specified. Air conditioned air can be supplied to the place.

FIG. 4 is a cross-sectional view around the air outlet of the indoor unit in which the position of each of the divided louvers according to the first embodiment is adjusted so that the air outlet becomes narrower. In addition, D1 in FIG. 4 shows the opening area of the blower outlet 5.
FIG. 4 shows a configuration in which both the equally divided louvers 6a and 6b of the first embodiment are moved to reduce the opening area of the air outlet 5 and the air blowing speed of air conditioned is increased.

  According to this structure, since the opening area of the blower outlet 5 can be adjusted by both equally divided louvers 6a and 6b, it is possible to control (control) the blowing wind speed and the wind direction with a higher degree of freedom. For example, by changing the opening angle θa or the opening angle θb of the equally divided louvers 6a and 6b, the wind speed and the wind direction can be changed variously.

By the way, if the blower outlet 5 is closed by any of the equally divided louvers 6a and 6b, the pressure loss increases and the air volume decreases. When the motor is an AC motor, if the resistance is large, the fan rotation speed is reduced and the air volume is reduced. Therefore, the effect of Embodiment 1 (present invention), that is, the effect of increasing the wind speed at the outlet 5 is small.
However, recently, DC motors have become mainstream. Since the DC motor is controlled so as to maintain the determined fan rotation speed even if the pressure loss increases, the air volume reduction is small, and the effect of the first embodiment (the present invention) can be expected.

In addition, the indoor unit 1 of the air conditioner C can supply conditioned air to a farther place by using a setting function corresponding to a high ceiling that increases the rotational speed of the turbo fan 12 than usual.
Therefore, with the indoor unit 1 of the air conditioner, even in a room with a high ceiling, it is possible to increase the blown air speed while suppressing an increase in the rotational speed and cost of the turbo fan 12. Therefore, the indoor unit 1 allows hot air to reach a far place, for example, the floor, and partial air conditioning is also possible.

<< Embodiment 2 >>
FIG. 5 shows a longitudinal sectional view around the air outlet of the indoor unit of the second embodiment, and FIGS. 6A, 6B, and 6C show examples of the opening operation of the unequal division louvers 26a and 26b.
The second embodiment differs from the equally divided louvers 6a and 6b of the first embodiment in that the louver is divided into unequal divided louvers 26a and 26b.
Since other configurations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

FIG. 5 shows a case where the air outlet 5 is covered (closed) by the unequal division louvers 26a and 26b of the second embodiment. In addition, the shape of the blower outlet 5 is the same as that of FIG.
The unequal division louvers 26a and 26b are formed of elongated and long flat plates formed in shapes different from each other.

The unequal division louvers 26a and 26b are configured such that L1> L2 or L1 <L2, where the width dimension L1 of the unequal division louver 26a and the width dimension L2 of the unequal division louver 26b. Incidentally, in the first embodiment, L1≈L2.
Here, by setting L1> L2 or L1 <L2, as shown in FIGS. 6 (a) to 6 (c), the area where the unevenly divided louvers 26a and 26b block the outlet 5 (of the outlet 5). The opening area) can be changed, and the blown wind speed can be controlled.

For example, in FIG. 6A, the opening angles θa and θb of the unequal division louvers 26a and 26b are made substantially equal, the opening area is reduced, and strong conditioned air is sent to the center outer side (arrow in FIG. 5). α2b).
In FIG. 6 (b), the opening angle θa of the unequal dividing louver 26a and the opening angle θb of the unequal dividing louver 26b are set to θa <θb, and the strongly conditioned air is sent to the side by reducing the opening area. (Arrow α2b in FIG. 5).
In FIG. 6 (c), the opening angle θa of the unequal dividing louver 26a and the opening angle θb of the unequal dividing louver 26b are set to θa> θb, and the conditioned air is sent to the center side with a narrowed opening area. (Arrow α2b in FIG. 5).

<< Embodiment 3 >>
The longitudinal cross-sectional view around the blower outlet of the indoor unit of Embodiment 3 is shown in FIG.
In the third embodiment, the divided configuration of the louvers is divided into overlapped divided lap louvers 36a and 36b.
Since other configurations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.
FIG. 7 shows the structure of the divided lap louvers 36a and 36b obtained by wrapping (superimposing) the louvers of the third embodiment, and is a view when the outlet 5 is covered (closed) with the divided lap louvers 36a and 36b.

8A to 8C are cross-sectional views around the air outlet of the indoor unit in which the position of each of the divided lap louvers in the third embodiment is adjusted so that the air outlet becomes narrower.
As shown to Fig.8 (a), the division | segmentation lap louvers 36a and 36b are comprised long so that it may wrap (superimpose) in the state which obstruct | occluded the blower outlet 5. FIG. Therefore, if each of the divided lap louvers 36a and 36b is moved so as to narrow the air outlet 5, the opening area of the air outlet 5 becomes smaller and the blown-out air speed can be increased. Specifically, the opening area D2 of the third embodiment of FIG. 8 has a longer distance in the blowing direction of the conditioned air than the opening area D1 of the outlet 5 of the first embodiment of FIG. The opening area can be reduced. Therefore, the loss of the conditioned air at the divided lap louvers 36a and 36b is small, and the blast air speed of the conditioned air can be increased. In addition, the wind speed and direction of the conditioned air can be controlled.

For example, as shown in FIG. 8B, the opening angle θb3 of the divided lap louver 36b is made larger than the opening angle θa3 of the divided lap louver 36a, thereby narrowing the opening area of the outlet 5 to a specific location on the side. The conditioned air can be blown out strongly (arrow α3b in FIG. 8).
Alternatively, as shown in FIG. 8C, the opening angle θb3 of the divided lap louver 36b is made smaller than the opening angle θa3 of the divided lap louver 36a, thereby narrowing the opening area of the outlet 5 and harmonizing with a specific location on the center side. Air can be blown out strongly (arrow α3b in FIG. 8).

<< Embodiment 4 >>
FIG. 9 is a cross-sectional view around the air outlet of the indoor unit of the fourth embodiment.
In the fourth embodiment, leakage flow stoppers 46a1 and 46b1 are provided on the divided louvers so as to prevent the conditioned air from leaking to places other than the intended location.
Since other configurations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

FIG. 9 shows a configuration of the outlet 5 in which the split wrap louvers 46a and 46b of the fourth embodiment are provided with leakage flow stoppers 46a1 and 46b1.
Specifically, FIG. 9 shows a case where the divided wrap louvers 36a and 36b shown in FIGS. 7 and 8 are provided with the leakage flow stoppers 46a1 and 46b1 to form the divided lap louvers 46a and 46b of the divided louver with the leakage flow stopper.
The divided lap louvers 46a and 46b are respectively fixed to the rotation shafts j1 and j2, and are provided rotatably about the rotation shafts j1 and j2. The outlet 5 is opened and closed by the turning operation of the divided lap louvers 46a and 46b.

FIG. 10 shows a leakage flow preventing shape of the divided louver according to the fourth embodiment.
As shown in FIG. 10, the leakage flow stop 46a1 is erected along the blow-off flow f direction at the flat plate end portion of the flat plate-shaped split lap louver 46a. For example, a leakage flow stop 46a1 is provided vertically along the blowing flow f direction at the flat plate end of the divided lap louver 46a.
The leakage stop 46b1 of the divided lap louver 46b is formed in the same manner.

Here, the effect of the leakage flow stoppers 46a1 and 46b1 will be described.
As shown in FIG. 8A of the third embodiment, when the divided lap louvers 36a and 36b are moved so as to narrow the blowout port 5 to send wind, a blowout flow (arrow α3b) is generated, but at the same time, the blowout port 5 is narrowed. As a result of the increase in pressure, a leak flow m is generated from the end of the divided lap louver 36a as indicated by an arrow α3c in FIG. Therefore, a loss occurs in the conditioned air to the place where it is desired to send, and the air volume is reduced.

  Therefore, in the fourth embodiment, the leakage flow stoppers 46a1 and 46b1 are provided at the end portions of the divided lap louvers 46a and 46b along the blowing flow f direction. The leakage flow stop 46a1 can stop the flow m (arrow α3c in FIG. 10) leaking from the end of the divided lap louver 46a, and can change the flow direction to the blowing flow f direction indicated by the arrow α4b in FIG. In other words, when the leakage flow m has the leakage flow stop 46a1 (46b1), the leakage flow m can be redirected to the flow f1 in the direction along the blowing flow f. Thereby, the loss of the leakage flow m can be reduced or prevented.

  In addition, although the leakage flow stoppers 46a1 and 46b1 of the fourth embodiment exemplify a fan shape, the outlet 5 can be closed by the divided lap louvers 46a and 46b, and the leaking flow m is a flow f1 in the direction along the blowing flow f Any shape can be used as long as it can change direction.

<< Embodiment 5 >>
The indoor unit of the air conditioner seen from the decorative panel side of Embodiment 5 is shown in FIG.
The fifth embodiment is a case where the louver is substantially equally divided in the longitudinal direction.
Since other configurations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.
In the fifth embodiment, the louvers are configured as equally divided louvers 56a and 56b in the longitudinal direction obtained by dividing the louver substantially equally in the longitudinal direction of the outlet 5.

The longitudinally equally divided louver 56a is axially supported by a shaft (not shown) whose inner end portion 56a2 extends in the longitudinal direction. The longitudinally equally divided louver 56a rotates around the longitudinal axis on the inner end portion 56a2 side so that the outer end portion 56a1 opens downward (front side in FIG. 11).
Similarly, the longitudinally equally divided louver 56b is axially supported by a shaft (not shown) whose inner end portion 56b2 extends in the longitudinal direction. The longitudinally equally divided louver 56b rotates around the longitudinal axis on the inner end portion 56b2 side so that the outer end portion 56b1 opens downward (front side in FIG. 11).

Similarly to the first to fourth embodiments, the opening area of the outlet 5 can be controlled by rotating the equally divided louvers 56a and 56b in the longitudinal direction around the axis.
According to this structure, the blowout strength of the conditioned air can be changed in the longitudinal direction of the air outlet 5 by the longitudinally equally divided louvers 56a and 56b. In particular, by constricting the opening area of the air outlet 5 with the longitudinally equally divided louvers 56a and 56b, it is possible to concentrate strong conditioned air at a location on the outer side of the air outlet 5.
In addition, the same effects as those of the first embodiment (FIG. 2) are obtained.
Note that at least one of the longitudinally equally divided louvers 56a and 56b may be configured such that the inner end side in the longitudinal direction opens around the axis on the outer end side in the longitudinal direction. Thereby, by constricting the opening angle of the equally divided louvers 56a and 56b in the longitudinal direction, strong conditioned air can be sent concentrated in more various directions.

<< Embodiment 6 >>
The bottom view of the indoor unit of the air conditioner seen from the decorative panel side of Embodiment 6 is shown in FIG.
In the sixth embodiment, the louver is unequally divided in the longitudinal direction.
Since other configurations are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

In the sixth embodiment, the louver is configured to open and close the air outlet 5 with longitudinally unequal-divided louvers 66a and 66b divided into lengths not equal to the longitudinal direction.
The longitudinally unequal division louver 66a is axially supported by a shaft (not shown) having an inner end 66a2 extending in the longitudinal direction. The longitudinally unequal division louver 66a rotates around the longitudinal axis on the inner end portion 66a2 side so that the outer end portion 66a1 opens downward (front side in FIG. 12).

Similarly, the longitudinally unequal dividing louver 66b is axially supported by a shaft (not shown) whose inner end portion 66b2 extends in the longitudinal direction. The longitudinally unequal division louver 66b rotates around the longitudinal axis on the inner end portion 66b2 side, so that the outer end portion 66b1 opens downward (front side in FIG. 12).
As in the first to fourth embodiments, the opening area of the outlet 5 can be controlled by rotating the longitudinally unequal division louvers 66a and 66b around the axis.

According to this configuration, the blowout strength and direction of the conditioned air can be changed in the longitudinal direction of the outlet 5 by the longitudinally unequal division louvers 66a and 66b. In particular, by constricting the opening area of the blowout port 5 with the longitudinally equally divided louvers 66a and 66b, strong conditioned air can be sent to a location outside the blowout port 5 in a concentrated manner.
In addition, the effect of Embodiment 5 is show | played similarly.
In addition, the longitudinal direction length of each of the longitudinally unequal division louvers 66a and 66b can be appropriately selected according to the place where the conditioned air is sent.
In addition, the same effects as those of the first embodiment (FIG. 2) are obtained.
Note that at least one of the longitudinally equally divided louvers 66a and 66b may be configured such that the inner end side in the longitudinal direction opens around the axis on the outer end side in the longitudinal direction. Thereby, by constricting the opening angle of the equally divided louvers 66a and 66b in the longitudinal direction, strong conditioned air can be sent concentrated in more various directions.

<< Embodiment 7 >>
The bottom view of the indoor unit of the air conditioner seen from the decorative panel side of Embodiment 7 is shown in FIG.
In the seventh embodiment, the arrangement pattern of the unequal division louvers is configured in line symmetry when viewed from below in the longitudinal direction.
As shown in FIG. 13, the seventh embodiment is configured to open and close the outlet 5 with longitudinally unequal division louvers 76 a and 76 b as in the sixth embodiment. The arrangement pattern of the unequal division louvers 76a and 76b in the longitudinal direction at the four outlets 5 of the decorative panel 2 is symmetrical with respect to the diagonal line BB of the substantially rectangular decorative panel 2 as viewed from below. It is configured.
For example, the longitudinally unequal division louvers 76a and 76b are axially supported by shafts (not shown) whose inner ends 76a2 and 76b2 extend in the longitudinal direction, respectively.
The longitudinally unequal division louver 76a is configured to open around the longitudinal axis on the inner end portion 76a2 side so that the outer end portion 7a1 opens downward (front side in FIG. 13). Similarly, the longitudinally unequal division louver 76b is configured to open around the longitudinal end axis on the inner end portion 76b2 side so that the outer end portion 76b1 opens downward (front side in FIG. 13).
The effect is the same as that of the sixth embodiment (see FIG. 12).
Also in this case, at least one of the longitudinally equally divided louvers 76a and 76b may be configured such that the inner end side in the longitudinal direction opens around the axis on the outer end side in the longitudinal direction. Thereby, by constricting the opening angle of the equally divided louvers 76a and 76b in the longitudinal direction, strong conditioned air can be sent concentrated in more various directions.

In addition, when there are a plurality of air outlets 5 as in the seventh embodiment, all the above-described divided louvers can freely determine the arrangement pattern of the air outlets 5 of the decorative panel 2, and the effect is the same as described above. .
As described above, the division louver can change the place where the conditioned air is supplied due to the difference in the arrangement pattern at the outlet 5 of the decorative panel 2 (by changing the arrangement pattern).
Further, the leakage flow stoppers 46a1 and 46b1 described in the fourth embodiment may be applied to other embodiments. Thereby, it is possible to send conditioned air to the place where it should be supplied without loss, and effective conditioned air can be blown.

<< Other Embodiments >>
1. In the said embodiment, although the case where the indoor unit 1 was provided in the ceiling 15 was illustrated, it is good also as a structure installed in the wall arrange | positioned on the side other than the ceiling 15. FIG.

2. The bottom view of the indoor unit of the air conditioner seen from the decorative panel side of the modification 1 is shown in FIG.
1-9 of the said embodiment demonstrated the case where the louver divided | segmented into the transversal direction which opens and closes the blower outlet 5 was made into the predetermined shape, but as shown in FIG. 14, division | segmentation louver 86a, 86b is shown. As indicated by arrows γ1, γ2, γ3, and γ4, a configuration that can be changed in the lateral direction may be employed.

  In the modification 1, it can implement | achieve by setting it as the structure which slides the division | segmentation louver 86a, 86b manually or automatically so that expansion-contraction is possible. For example, the divided louvers 86a and 86b are each composed of a plurality of members, and are configured to be manually slidable in the short direction. Or it is set as the structure which moves the division | segmentation louver 86a, 86b comprised with the several member to the desired position with the drive force of a motor with a rack and pinion using a small DC motor.

According to the modification 1, the user can adjust the position which sends conditioned air freely freely in the short direction of the blower outlet 5 in a use place.
Note that at least one of the four divided louvers 86a and 86b may be configured to be adjustable in the lateral direction.

3. The bottom view of the indoor unit of the air conditioner seen from the decorative panel side of the modification 2 is shown in FIG.
11-13 of the said embodiment demonstrated the case where the louver divided | segmented into the longitudinal direction which opens and closes the blower outlet 5 was made into the predetermined shape, but as shown in FIG. 15, the division | segmentation louvers 96a and 96b are shown by the arrow. It is good also as a structure which can each be changed like (gamma) 5, (gamma) 6, (gamma) 7, and (gamma) 8.

  The second modification can be realized by a configuration in which the divided louvers 96a and 96b are slid in a telescopic manner manually or automatically. For example, each of the divided louvers 86a and 86b is composed of a plurality of members and is slidable in the longitudinal direction. Or it is set as the structure which moves the division | segmentation louver 96a, 96b comprised with the several member to the desired position with the drive force of a motor with a rack and pinion using a small DC motor.

According to the modification 2, the user can adjust the position which sends conditioned air suitably freely to the longitudinal direction of the blower outlet 5 in a use place.
Note that at least one of the four divided louvers 96a and 96b may be configured to be adjustable in the lateral direction.

4). In the embodiment, the configuration in which the louver provided in one suction port 5 is divided into two has been described. However, the louver may be divided into three or more as long as the function described in the embodiment can be performed. .

5. In the said embodiment, although the decorative panel 2 was illustrated as an exterior member, if it is an exterior member, it will not be limited to the decorative panel 2. FIG.

6). In Embodiments 1 to 7 and Modifications 1 and 2, various configurations have been described. However, the configurations may be appropriately selected and combined.

7). The configurations described in Embodiments 1 to 7 and Modifications 1 and 2 are examples of the present invention, and various specific forms are possible within the scope of the claims.

1 indoor unit 2 decorative panel (exterior material)
3 Inlet 5 Outlet 6a, 6b Equally divided louver (louver, divided louver, divided louver formed by dividing in the short direction, divided louver divided into two and opened with double doors)
7t Top plate (back plate)
7 Housing 12 Turbo fan (fan)
13 heat exchangers 36a, 36b, 46a, 46b Equally divided louvers (louvers, divided louvers, divided louvers that overlap with other divided louvers and close the outlet, divided louvers formed by dividing in the short direction, divided into two Split louver that opens with double doors)
46a1, 46b1 Airflow leakage prevention guides 56a, 56b Equally divided louvers in the longitudinal direction (louvers, divided louvers, divided louvers formed by being divided in the longitudinal direction)
66a, 66b, 76a, 76b Unequally divided longitudinal louvers (louvers, divided louvers, divided louvers formed by being divided in the longitudinal direction)
86a, 86b Divided louvers (louvers, divided louvers, divided louvers formed by being divided in the short direction, divided louvers that are divided into two and opened with double doors, and divided louvers whose size can be adjusted)
96a, 96b Split louver (louver, split louver, split louver formed by dividing in the longitudinal direction, split louver whose size can be adjusted)
C Air conditioner

Claims (9)

A box-shaped housing with the back side partitioned by a back plate and the front side partitioned by an exterior member;
A fan disposed in the housing;
A heat exchanger disposed on the outlet side of the fan;
A suction port and a blowout port disposed in the exterior member;
A louver disposed at the outlet and for blowing the conditioned air heat-exchanged by the heat exchanger;
The louver is constituted by a divided louver divided into a plurality of parts, and the fan blows air in a state where at least one divided louver among the plurality of divided louvers at the outlet is closed. Indoor unit. A box-shaped housing with the back side partitioned by a back plate and the front side partitioned by an exterior member;
A fan disposed in the housing;
A heat exchanger disposed on the outlet side of the fan;
A suction port and a blowout port disposed in the exterior member;
A louver that blows out conditioned air that is arranged at the outlet and heat-exchanged by the heat exchanger;
The louver is constituted by a divided louver divided into a plurality of parts, and the divided louver is formed by being divided in the short direction of the blowout port, and the divided louver is blown in a state of being moved to narrow the blowout port. This is an indoor unit for an air conditioner. In the indoor unit of the air conditioner according to claim 1,
The indoor unit of an air conditioner, wherein the division louver is divided and formed in a longitudinal direction of the air outlet. The indoor unit of the air conditioner according to claim 2,
The indoor unit of an air conditioner, wherein the divided louver is divided into two and opened with a double door. In the indoor unit of the air conditioner according to claim 1 or 2,
The air conditioner indoor unit, wherein the split louver is configured to overlap the other split louver and close the blower outlet when the blower outlet is closed. The indoor unit of the air conditioner according to claim 2,
An air leakage prevention guide that is formed along an outlet direction from the outlet and that guides the conditioned air in the outlet direction so as not to deviate from the outlet direction is provided at an end of the divided louver. Air conditioner indoor unit. In the indoor unit of the air conditioner according to claim 1 or 2,
The air conditioner indoor unit is characterized in that the split louver is air-conditioned while maintaining a position that narrows the outlet. In the indoor unit of the air conditioner according to claim 1 or 2,
The indoor unit for an air conditioner is provided with a setting function for a high ceiling that increases the rotational speed of the fan from a normal level. In the indoor unit of the air conditioner according to claim 1 or 2,
An indoor unit of an air conditioner, wherein the size of the divided louver can be adjusted.

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