JPH1019300A - Indoor machine for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To send hot-air, sent out immediately downward, so as to arrive at a floor surface surely. SOLUTION: An indoor machine I' for an air conditioner is provided at the lower part of fore side of a front surface panel 3 and is provided with an air outlet port 1 for sending air-conditioning air into a room. The air outlet port 1 is provided with two sets of upper and lower airflow deflecting plates 60, 70, which are pivotal about pivoting axes C1, C2 in order to change the up-and-down sending directions of the air-conditioning air. When air is sent immediately downward upon heating operation, the first up-and-down airflow direction deflecting plate 60 is positioned at substantially vertical position while the second up-and-down airflow direction deflecting plate 70 is positioned at a stopped position, closing the fore upper side of the air outlet port 1 along the front surface of the front surface panel 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit of an air conditioner, and more particularly to a vertical blower of conditioned air by turning a vertical louver provided at an outlet of the indoor unit. For controlling direction.

[0002]

2. Description of the Related Art As shown in FIGS. 23 and 24, a conventional air conditioner indoor unit has an air outlet 201 for blowing conditioned air into a room. Plates 210, 220 and 230 are provided,
By moving the rotational positions of 10, 220, and 230, the upper and lower blowing directions (wind directions) of the conditioned air are changed. In this case, one vertical wind direction plate 210 is rotated by a motor as shown in FIG. 23, or two vertical wind direction plates 220 and 23 as shown in FIG.
There is a type in which 0 is rotated in an interlocking manner by driving a motor.

[0003] As shown in FIGS. 23 and 24,
During the heating operation of the air conditioner,
By placing 0, 220, 230 in a substantially vertical position,
Air-conditioning air (warm air) is blown in the direction directly below the indoor unit or toward the rear wall surface to warm the lower part of the room (near the floor) and improve the comfort at the start of heating operation (so-called "wind direction control"). "Blow down") is known.

[0004]

The above-mentioned conventional indoor units of the air conditioner have the following problems. First, in the above-described blow-down operation, in the indoor unit shown in FIG. 23, a relatively large gap 205 is formed between the air outlet 201 and the upper end of the vertical wind direction plate 210.
Due to the outflow of the conditioned air from the five portions, the air volume (the conditioned air flow rate) of the directly blown air decreases. Further, in the indoor unit shown in FIG. 24, the conditioned air flows out from the gap 206 between the outlet 201 and the upper end of the vertical wind direction plate 230, and the blowout area in the direction directly below the outlet 201 increases. In addition, the wind speed (air-conditioning air flow velocity) of the directly blown air decreases.

Therefore, in any of the indoor units described above,
It is not possible to obtain a sufficient amount of airflow or wind speed when blowing directly below.
And since the specific gravity of the warm air is smaller than the specific gravity of the indoor air, if a sufficient air volume and wind speed cannot be obtained directly below, the warm air will be lifted before reaching the floor, and the area near the floor will be lifted. The purpose of warming and improving comfort cannot be sufficiently fulfilled.

In the indoor unit shown in FIG. 24, two upper and lower wind direction plates 220 and 230 are rotated in an interlocking manner.
It is limited to any one of the front lower direction and the horizontal front.

Next, the two upper and lower wind direction plates can be independently rotated so that the main flow in one direction with a large air flow and the sub flow in the other direction with a small air flow are separated into two directions. Even in an indoor unit capable of blowing air, conventionally, the direction of the mainstream airflow is changed by rotating at least the main airflow direction vertical plate.

In this case, in order to finely change the blowing direction of the main flow, it is necessary to finely position at least the turning position of the upper and lower wind direction plates on the main flow side. For example, in order to set the mainstream blowing direction to be slightly forward and downward from just below, it is necessary to position the mainstream upper and lower wind direction plates at a position slightly forward and downward from the vertical position. In order to achieve such fine positioning, it is necessary to increase the rotational resolution of a motor that drives the upper and lower wind direction plates, so that an expensive motor or deceleration mechanism and a corresponding motor control are required.

[0009] Next, in the conventional indoor unit, the blowing direction during the heating operation is limited to any one of the above-described blow-down direction, the horizontal front direction, and the front-downward direction directly blowing toward the living area. If you change the wind direction from the blowing direction of
Suddenly, the wind directly hits the resident, and the resident may feel uncomfortable due to feeling of ventilation or cold wind.

In the conventional indoor unit, during the cooling operation, the turning position of the upper and lower wind direction plates is fixed to a substantially horizontal position so that the wind direction is horizontally forward. In this case, if the air volume is reduced or if the temperature of the conditioned air is relatively low with respect to the room temperature, the conditioned air may drop due to its large specific gravity and blow directly to the living area. In such a case, even if the airflow of the conditioned air directly hits the occupants, there is no discomfort such as a feeling of cold wind during the heating operation for a short time, but there is a feeling of cold or too cold for a long time, It is not preferable from the viewpoint of.

The present invention has been made in consideration of the above points. First, it ensures that warm air blown directly below reaches the floor surface and sufficiently warms the vicinity of the floor surface to improve comfort. The purpose is to improve.

Secondly, the object of the present invention is to provide effective heating by dividing the blowing direction during the heating operation into two directions.

Third, it is an object of the present invention to finely change the mainstream blowing direction without requiring fine positioning of the upper and lower wind direction plates.

[0014] Fourth, the mainstream blow-out direction is slightly forward from just below by changing the setting of the rotation position of the second vertical wind-direction plate without requiring fine positioning of each vertical wind-direction plate. It is intended to change in a plurality of directions from the front to the lower front.

Fifth, it is an object of the present invention to provide effective heating without blowing a strong wind into a lower front living area.

Sixth, the main flow blowing direction can be changed from directly below to the front lower direction only by sequentially moving the setting of the rotation position of the second vertical wind direction plate without requiring fine positioning of each vertical wind direction plate. It is intended to sequentially change in a plurality of directions between them.

Seventh, it is an object of the present invention to provide a warm heating without a feeling of cool wind without blowing a strong wind to a resident, and to make the room temperature uniform.

Eighth, it is an object of the present invention to avoid a state in which the conditioned air blows directly to the living area during the cooling operation.

[0019]

A first means is an air outlet for blowing conditioned air into a room, and a circulating air outlet provided at the air outlet for changing the upper and lower blowing directions of the conditioned air. A first vertical wind direction plate and a second vertical wind direction plate rotatable around a dynamic axis, the first vertical wind direction plate being located below the outlet and the front upper side of the air outlet. A second vertical wind direction plate located on the side, and means for independently moving the rotational position of each vertical wind direction plate, and in the heating operation, the first first vertical wind direction plate,
An indoor unit for an air conditioner, wherein the indoor unit is located at a substantially vertical position, and the second vertical wind direction plate is located at a position closing a front upper side of the air outlet.

According to the first means, during the heating operation, the second vertical wind direction plate is located at a position that closes the front upper side of the air outlet, so that the second vertical wind direction plate and the air outlet are connected to each other. There is no leakage of the conditioned air during the air flow, and the area of the air outlet is greatly reduced by the second vertical wind direction plate. The wind speed of the blowout increases.

The second means is provided with a suction port for sucking room air, a blow port provided below the suction port for blowing conditioned air into the room, and a blow port provided at the blow port. A first vertical wind direction plate and a second vertical wind direction plate rotatable around a rotation axis to change the upper and lower air blowing directions, respectively, and are located below and below the outlet. A first vertical wind direction plate, a second vertical wind direction plate located in front of and above the air outlet, and means for independently moving a rotational position of each of the vertical wind direction plates during a heating operation. , Wherein the first vertical wind direction plate is located between a substantially vertical position and a position facing forward and downward, and the second vertical wind direction plate is located at a position facing forward and upward. It is an indoor unit of an air conditioner.

According to the second means, the blowing direction at the time of the heating operation can be divided into two directions, that is, the lower front by the first vertical wind direction plate and the upper front by the second vertical wind direction plate. Then, the warm air flowing forward and upward by the second vertical wind direction plate is sucked from the suction port again and reheated, thereby forming a high-temperature blow state in which the temperature of the warm air flowing forward and downward by the first vertical wind direction plate is increased. I do.

A third means is the second means, wherein the first vertical wind direction plate and the second vertical wind direction plate are located at positions where their center lines are substantially orthogonal to each other.

According to the third means, in the second means, it is possible to reduce leakage of conditioned air from between the first vertical wind direction plate and the second vertical wind direction plate.

The fourth means is provided with an air outlet for blowing air-conditioned air into the room, and is provided at the air outlet, and is respectively rotated around a rotation axis to change the upper and lower air blowing directions of the air-conditioned air. Equipped with two vertically adjustable wind panels, and means for independently moving the rotation position of each vertical wind panel, and one of the upper and lower wind panels forming a main flow having a large flow rate of the conditioned air. The air conditioning characterized by changing the direction of the main flow by changing the rotation position of the other upper and lower wind direction plates forming a tributary with a small flow rate of the conditioned air while the rotation position is fixed. It is an indoor unit of the device.

According to the fourth means, the blowing directions of the main stream and the tributaries have a mutual effect, but the blowing direction of the main stream changes little by little with respect to the change of the blowing direction of the tributary. The main air blowing direction can be finely changed by largely changing the rotational position of the other vertical wind direction plate forming the tributary while keeping the rotational position of the one vertical wind direction plate forming one.

The fifth means is provided with an air outlet for blowing air-conditioned air into a room, and is provided at the air outlet, and each of the air-conditioning air is rotated about a rotation axis in order to change a vertical direction of the air-conditioned air. A first up-down wind direction plate and a second up-down wind direction plate that are freely movable, wherein the first up-down air direction plate and the second up-down air direction plate are located below and below the outlet.
And a second plate located above and in front of the outlet.
And a means for independently moving the rotational position of each of the upper and lower wind direction plates, and wherein the first and second wind direction plates are placed in a substantially vertical position, and the second Is an indoor unit of an air conditioner characterized in that it can be stopped at a plurality of positions between a position facing forward and upward and a position facing forward and downward.

According to the fifth means, the main flow formed by the first vertical wind direction plate and the blowout direction of the tributary flow formed by the second vertical wind direction plate have a mutual influence. The mainstream blowing direction changes little by little with respect to the tributary blowing direction change. Thus, in a state where the first vertical wind direction plate is located at a substantially vertical position, the second vertical wind direction plate is set at a plurality of positions between a position facing forward and upward and a position facing forward and downward. With the change in the direction of the tributary blowout by the second vertical wind direction plate, the direction of the main flow blown by the first vertical wind direction plate is changed in a plurality of directions from a direction slightly below the front to the front lower side. Can be changed. For this reason, only by changing the setting of the rotation position of the first vertical wind direction plate, the mainstream blowout direction can be changed in a plurality of directions from a direction slightly below the front to a position below the front.

The sixth means is provided with an air outlet for blowing air-conditioned air into the room, and is provided at the air outlet. A first up-down wind direction plate and a second up-down wind direction plate that are freely movable, wherein the first up-down air direction plate and the second up-down air direction plate are located below and below the outlet.
And a second plate located above and in front of the outlet.
A vertical wind direction plate, and means for independently moving the rotation position of each vertical wind direction plate, during the heating operation, the first vertical wind direction plate is placed in a substantially vertical position, The indoor unit of an air conditioner, wherein the second vertical wind direction plate is located between a substantially horizontal position and a position facing forward and downward.

According to the sixth means, the blowing direction at the time of the heating operation is divided into two directions: a direction slightly forward from directly below the first vertical wind direction plate and a forward direction by the second vertical wind direction plate. A vertical shunting state can also be formed. Thereby, the vicinity of the floor surface is warmed by warm air in a direction slightly forward from directly below the first vertical wind direction plate, and the second
The upper part of the room can be warmed by warm air flowing forward by the upper and lower wind direction plates.

A seventh means is the sixth means, wherein the second vertical airflow direction plate has a curved shape on the upper surface side in a cross section, and a curvature of the downstream side of the conditioned air is an upstream side. It is characterized by being larger than the curvature.

Eighth means is the sixth means, wherein the second vertical airflow direction plate is formed with a projection projecting upward from the upper surface thereof on the downstream side of the conditioned air. I do.

Ninth means is the sixth means, wherein the second vertical airflow direction plate has a substantially flat plate shape, and a projection protruding upward from an upper surface thereof is formed downstream of the conditioned air. It is characterized by having been done.

In any of the seventh to ninth means, the blowout direction of the conditioned air by the second vertical wind direction plate can be deflected upward by the sixth means. A stable up / down shunting state can be formed in a wide range of the rotation position of the wind direction plate from substantially horizontal to lower front.

The tenth means is provided with an air outlet for blowing air-conditioned air into a room, and is provided at the air outlet. A first up-down wind direction plate and a second up-down wind direction plate that are freely movable, wherein the first up-down wind direction plate is located on the lower rear side of the outlet and the second is located on the front upper side of the outlet. The upper and lower wind direction plates, and means for independently moving the rotational position of each vertical wind direction plate, during heating operation,
The first vertical wind direction plate is located at a substantially vertical position, and the second vertical wind direction plate is sequentially moved to a plurality of positions from a position where the air outlet is closed to a position facing forward and downward. An air conditioner indoor unit characterized by the above-mentioned.

According to the tenth means, although the main flow formed by the first vertical wind direction plate and the blowout direction of the tributary flow formed by the second vertical wind direction plate have a relationship of mutual influence. The mainstream blowing direction changes little by little with respect to the tributary blowing direction change. This allows the second vertical wind direction plate forming the tributary to face forward and downward from the position where the outlet is closed, while the turning position of the first vertical wind direction plate forming the main flow is set at a substantially vertical position. By successively moving to a plurality of positions up to the position, the blowing direction of the main flow can be sequentially changed in a plurality of directions from directly below to front down.

The eleventh means is that, in the tenth means, the second vertical wind direction plate is held at a substantially horizontal position for a certain operation time and then moved to a position facing forward and downward. Features.

According to the eleventh means, in the tenth means, the main up-and-down airflow direction plate is held at a substantially horizontal position for a certain operation time, so that the mainstream blow direction is slightly forward from immediately below. In the direction of approach, the resident is heated without blowing strong wind, and then the main airflow direction is moved forward and downward by moving the second vertical wind direction plate to the position facing forward and downward, The wind that hits people. As a result, it is possible to prevent the resident from feeling uncomfortable due to feeling of ventilation or cool wind without suddenly blowing a strong wind to the resident.

A twelfth means is provided with an air outlet for blowing air-conditioned air into a room, and is provided at the air outlet, and is respectively rotated around a rotation axis to change the upper and lower air blowing directions of the air-conditioned air. A first up-down wind direction plate and a second up-down wind direction plate that are freely movable, wherein the first up-down wind direction plate is located on the lower rear side of the outlet and the second is located on the front upper side of the outlet. And a means for independently moving the rotational position of each of the upper and lower wind direction plates, and wherein the first and second wind direction plates are placed in a substantially vertical position, and the second A first mode position in which the upper and lower wind direction plates are placed at a position to close the front upper side of the outlet, and a position between the second horizontal direction plate and the position in which the front and lower direction faces forward and downward. Can be stopped at the second mode position placed at During the second vertical airflow direction plate is the indoor unit of an air conditioning apparatus, characterized in that it is successively moved from the first mode position to the second mode position.

According to the twelfth means, when each of the upper and lower wind direction plates is in the first mode position, the blowing direction is directly downward, and when in the second mode position, the blowing direction is by the first vertical direction plate. The direction slightly forward from below and the second
The upper and lower wind direction plates form a vertical shunting state divided into two directions. Then, during the heating operation, the first vertical wind direction plate is sequentially moved from the first mode position to the second mode position, so that the blowout direction is sequentially changed from directly below to the vertical branch state.

The thirteenth means is the twelfth means,
The second mode position is characterized by sequentially comprising a state in which the second vertical wind direction plate is placed at a substantially horizontal position, and a state in which the second vertical wind direction plate faces forward and downward. I do.

According to the thirteenth means, in the twelfth means, the blowing direction of the first vertical wind direction plate in the second mode position to the front and below is sequentially changed to the forward direction, and is changed to the vertical split state. be able to. As a result, the state is shifted to a state in which the entire room is heated while the wind toward the occupant is gradually increased, and the entire room can be warmed without giving the occupant a feeling of cool air.

The fourteenth means is the twelfth or thirteenth means, wherein each of the upper and lower wind direction plates is further arranged at a substantially horizontal position with the first vertical wind direction plate and the second vertical wind direction plate. Heating can be stopped in a three-mode position and a fourth mode position in which the first vertical wind direction plate faces forward and downward and the second vertical wind direction plate faces forward and upward. During operation, each of the upper and lower wind direction plates is sequentially moved from the first mode position to the third mode position, the fourth mode position, and the second mode position.

According to the fourteenth means, in the twelfth or thirteenth means, when each of the upper and lower wind direction plates is at the third mode position, the blowing direction is horizontal forward. Also, the fourth
When in the mode position, the blowing direction is divided into two directions, a front lower direction by the first vertical wind direction plate, and a front upper direction by the second vertical wind direction plate, and the warm air is blown forward and upward by the second vertical wind direction plate. Is sucked in again from the suction port and is reheated, thereby forming a high-temperature blowing state in which the temperature of the warm air flowing forward and downward by the first vertical airflow direction plate is increased.

Then, during the heating operation, first, the upper and lower wind direction plates are moved from the first mode position to the third mode position, so that the blowing direction changes from directly below to the horizontal front, and the blowing downward. Thus, the temperature in the interior of the room, where the temperature has not risen, can be increased without blowing the wind to the occupants. Next, as each of the upper and lower wind direction plates is moved from the third mode position to the fourth mode position, the blowing direction changes to the high-temperature blowing state, and the temperature of the hot air that first hits the occupant is increased, The feeling of cool wind to the occupant due to the subsequent downward blowing at the second mode position is alleviated.

A fifteenth means according to any one of the twelfth to fourteenth means, further comprising an operation switch which can be manually operated, and when the operation switch is operated during the heating operation, each of the upper and lower wind direction plates is turned on. It is moved to the first mode position.

According to the fifteenth means, in any one of the twelfth to fourteenth means, the upper and lower wind direction plates are arbitrarily moved to the first mode position during the heating operation by manual operation of the operation switch. Can be.

According to a sixteenth aspect, in any one of the twelfth to fourteenth aspects, each of the upper and lower wind direction plates is moved to the first mode position when the heating operation is started.

According to the sixteenth aspect, in any one of the twelfth to fourteenth aspects, heating can be performed from a state in which each of the upper and lower wind direction plates is always moved to the first mode position.

The seventeenth means includes the twelfth, thirteenth, and first
In the fourth or sixteenth means, further comprising a discriminating means for discriminating between a transition period and a stable period of the air conditioning operation of the air conditioner, and moving each of the upper and lower wind direction plates based on the discrimination result of this discriminating device. It is characterized by.

The eighteenth means is the seventeenth means,
The discriminating means includes: (a) a room temperature detector for detecting a room temperature, (b) a heat exchange temperature detector for detecting a heat exchanger temperature, and (c) a temperature detector for detecting a blowing temperature of the conditioned air. The apparatus has at least one of an outlet temperature detector and (d) an operation time timer for detecting an elapsed time from the start of the heating operation, and based on any one of the detection results or a combination of the respective detection results. The transition period and the stable period are distinguished.

The nineteenth means is the fifteenth means,
The air conditioner further includes a discriminating unit for discriminating between a transition period and a stable period of the air conditioning operation, and moves the upper and lower wind direction boards based on a discrimination result of the discriminating unit.

According to a twentieth means, in the nineteenth means,
The discriminating means includes: (a) a room temperature detector for detecting a room temperature, (b) a heat exchange temperature detector for detecting a heat exchanger temperature, and (c) a temperature detector for detecting a blowing temperature of the conditioned air. A blowout temperature detector, and (d) an operation switch timer for detecting an elapsed time from the operation of the operation switch, wherein at least one of the detection results or a combination of the respective detection results is provided. It is characterized in that the transition period and the stable period are determined based on the above.

According to the seventeenth to twentieth means,
By moving the upper and lower wind direction boards based on the determination result of the transition period and the stable period of the air-conditioning operation by the determination unit, the optimal heating operation according to each state of the transition period and the stable period can be performed.

The twenty-first means is any one of the twelfth to fourteenth means, further comprising means for changing the flow rate of the conditioned air, and each of the upper and lower wind direction plates is further provided with the first vertical wind direction. The plate and the second vertical wind direction plate can be stopped at the heating standard mode position where both the vertical wind direction plates face forward and downward, and each of the vertical wind direction plates is the first, the second, or the fourth.
The blowout flow rate when in the mode position is larger than the blowout flow rate when each of the upper and lower wind direction plates is in the heating standard mode position.

According to the twenty-first means, in any one of the twelfth to fourteenth means, each of the upper and lower wind direction plates is the first,
When in the second or fourth mode position, the blowing resistance of the conditioned air from each of the upper and lower wind direction plates is greater than in the heating standard mode position, and the blowing flow rate is more likely to decrease. Therefore, by making the blowout flow rate in the former case larger than the blowout flow rate in the latter case, it is possible to prevent a decrease in the heating operation efficiency due to a decrease in the blowout flow rate.

A twenty-second means is provided at the air outlet for blowing air-conditioned air into the room, and is rotatable about a rotation axis for changing the upper and lower air blowing directions of the air-conditioned air. The upper and lower wind direction plates, and means for moving the rotation position of the upper and lower wind direction plates, during cooling operation, the upper and lower wind direction plates, a cooling standard mode position is placed in a substantially horizontal position, An indoor unit of an air conditioner, wherein the indoor unit can be stopped at a cooling oblique upper blowing mode position which is located at a position facing forward and upward.

According to the twenty-second means, when the upper and lower wind direction plates are in the cooling standard mode position, the blowing direction is horizontal forward, and when the plate is in the cooling oblique upper blowing mode position, it is slightly upward from the horizontal direction. Direction. Thereby, in the cooling operation, when the upper and lower wind direction plates are in the cooling standard mode position and the conditioned air falls and blows directly to the living area, the upper and lower wind direction plates are moved to the cooling oblique upper blowing mode position. This makes it possible to avoid a state in which the conditioned air blows directly to the living area.

The twenty-third means is provided with an air outlet for blowing air-conditioned air into the room, and is provided at the air outlet, and each of the air-conditioning air is rotated about a rotation axis in order to change the vertical direction of the air-conditioned air. A first up-down wind direction plate and a second up-down wind direction plate that are freely movable, wherein the first up-down wind direction plate is located on the lower rear side of the outlet and the second is located on the front upper side of the outlet. And a means for independently moving the rotational position of each of the upper and lower wind direction plates, and during the cooling operation, each of the upper and lower wind direction plates includes the first vertical wind direction plate and the second With respect to the cooling standard mode position where the upper and lower wind direction plates are both placed at a substantially horizontal position, and with respect to this cooling standard mode position,
An indoor unit of an air conditioner, wherein the indoor unit can be stopped at least in a cooling oblique upper blowing mode position in a state where the second upper and lower wind direction plates are moved to a position facing forward and upward.

According to the twenty-third means, when each of the upper and lower wind direction plates is at the cooling standard mode position, the blowing direction is horizontal forward, and when it is at the cooling oblique upper blowing mode position,
The direction is slightly upward from the horizontal direction. By this, at the time of the cooling operation, when the upper and lower wind direction plates are in the cooling standard mode position and the conditioned air falls and blows directly to the living area, the respective upper and lower wind direction plates are set to the cooling oblique upper blowing mode position. By moving, it is possible to avoid a state in which the conditioned air blows directly to the living area.

According to a twenty-fourth means, in the twenty-third means,
(A) a room temperature detector for detecting a room temperature, (b) a heat exchange temperature detector for detecting a heat exchanger temperature, (c) an outlet temperature detector for detecting an outlet temperature of the conditioned air,
(D) at least one of a manually operable spray avoidance operation switch and operation detection means for detecting the presence / absence of operation of the spray avoidance operation switch; Each upper and lower wind direction plate is moved from the cooling standard mode position to the cooling oblique upper blowing mode position based on a combination of the respective detection results.

According to the twenty-fourth means, in the twenty-third means, each of the upper and lower wind direction plates is arbitrarily set by manual operation of a spray avoidance operation switch or automatically based on the temperature detected by each temperature detector. Can be moved from the cooling standard mode position to the cooling oblique upper blowing mode position to avoid a state in which the conditioned air blows directly to the living area.

The twenty-fifth means includes the twelfth, thirteenth, and first
The fourth or twenty-second means is characterized in that it can be set to an exhibition mode in which each of the upper and lower wind direction plates can be moved to each of the mode positions while the operation of the air conditioner is stopped.

According to the twenty-fifth means, the twelfth and the first
In the third, fourteenth, or twenty-second means, by setting the display mode, it is possible to move each of the upper and lower wind direction plates to each mode position while the operation of the air conditioner is stopped. Thus, an effective demonstration of the operation of the indoor unit can be performed.

The twenty-sixth means is the twenty-fifth means,
The remote control device further includes a remote control device for setting an operation state of the air conditioner. The remote control device has a display operation switch. In the display mode, each remote control device operates in accordance with an operation of the display operation switch of the remote control device. The wind direction plate is moved to each of the mode positions.

According to the twenty-sixth means, in the twenty-fifth means, the demonstration can be performed by operating the exhibition operation switch of the remote controller.

According to a twenty-seventh means, in the twenty-sixth means,
The display mode is further provided with activation determination means for determining whether or not the exhibition mode can be activated, and an input of a display operation switch of the remote control device is validated based on a result of the determination by the activation determination means.

According to the twenty-seventh means, in the twenty-sixth means, in response to the operation of the display operation switch of the remote control device, the display mode is changed according to the determination of whether or not the display mode can be activated by the activation determining means. It can be activated or not activated.

According to a twenty-eighth means, in the twenty-seventh means,
The apparatus further includes a main body side operation switch, and the activation determination unit includes
The activation of the exhibition mode is determined based on a combination of the operation contents of the main body operation switch and the exhibition operation switch of the remote control device.

According to the twenty-eighth means, in the twenty-seventh means, the display mode is activated or not activated depending on a combination of the operation contents of the operation switch on the main body and the operation switch for display of the remote controller. be able to.

The twenty-ninth means is the twenty-fifth means,
Display means, further comprising an air volume changing means for changing the flow rate of the conditioned air, and in the exhibition mode, the display content of the display means and the display content corresponding to each mode position of each of the upper and lower wind panels. The air flow rate of the conditioned air is set, and with the change of each mode position of each of the upper and lower wind direction plates, the set display content of the display means and the air flow rate of the conditioned air are obtained. A display means and the air volume changing means are controlled.

According to the twenty-ninth means, in the twenty-fifth means, the display content of the display means and the flow rate of the conditioned air are changed in response to the change of each mode position of each of the upper and lower wind direction plates. A more effective demonstration can be performed.

[0073]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 22 are diagrams showing an embodiment of an indoor unit of an air conditioner according to the present invention.

First Embodiment FIGS. 1 to 16 are views showing a first embodiment of the present invention. 1 and 2, an indoor unit I 'of an air conditioner mounted at a high place on a wall surface in a room is provided with a front panel 3 and a front lower portion of the front panel 3, and air-conditioned air (cooling air, An outlet 1 for blowing out dehumidified air, heating air, etc.) and an outlet passage 2 for flowing conditioned air forward and downward toward the outlet 1 are provided. The outlet passage 2 is sandwiched between a front wall 2a and a rear wall 2b in cross section.

In order to change the upper and lower blowing directions of the conditioned air, the air outlet 1 has rotating shafts C parallel to each other.
Two upper and lower wind louvers (louvers) 60 and 70, which are rotatable around C1 and C2, respectively, are provided. In addition, what is shown by the code | symbol 9 in FIG. 1 is the left-right wind direction board provided in the upstream of the up-down wind direction board 10, and changing the left-right blowing direction of conditioned air.

The front panel 3 has a room air suction port 4 formed on the front surface thereof, and a room air suction port 5 formed on the upper surface thereof. Inside the front panel 3, the main indoor heat exchange includes a first heat exchanger 6 a (see FIG. 3) corresponding to the suction port 4 and a second heat exchanger 6 b corresponding to the suction port 5. A vessel 6 is provided. An auxiliary indoor heat exchanger (supercooling heat exchanger) 7 is provided between the suction port 5 and the second heat exchanger 6b.

Further, inside the main indoor heat exchanger 6 (between the first heat exchanger 6a and the second heat exchanger 6b), a horizontal flow type indoor fan 8 is provided. The indoor fan 8 is driven at a variable rotational speed by a fan motor FM (see FIG. 5). The indoor unit I 'sucks indoor air from the suction ports 4 and 5 by the rotation of the indoor fan 8. The room air sucked from the inlet 4 flows through the first heat exchanger 6a to the outlet passage 2, and
The room air sucked from the suction port 5 flows to the outlet passage 2 through the auxiliary indoor heat exchanger 7 and the second heat exchanger 6a.
Then, the flow rate of the conditioned air blown out from the blow-out port 1 through the blow-out passage 2 changes according to the change in the rotation speed of the indoor fan 8.

Next, referring to FIG.
0 and 70 will be described in detail. As shown in FIG.
The first port located on the rear wall 2b side (lower rear side) of the outlet passage 2
The vertical wind direction plate 60 has a substantially U-shaped cross-sectional shape bent toward the rotation axis C1 at a position substantially facing the rotation axis C1. On the other hand, the second vertical airflow direction plate 70 located on the front wall 2a side (front upper side) of the blowout passage 2 has a substantially flat cross-sectional shape. Further, a protruding portion 74 protruding upward from the upper surface 70a is formed on one end 71 side of the second vertical wind direction plate 70. The upper and lower wind direction plates 60 and 70 are respectively connected to the upper and lower wind direction motors M1 and M.
2 (see FIG. 3).

Further, in order to maintain the aesthetic appearance of the indoor unit I ', when the air conditioner is stopped, each of the upper and lower wind direction plates 60, 70 is moved to the stop position (S) shown in FIG. At this time, the second vertical wind direction plate 70 closes the front upper side of the air outlet 1 along the front surface 3a of the front panel 3, and the first vertical wind direction plate 60 becomes the second vertical wind direction plate. Along the virtual surface S 'connecting the lower end 72 of the front panel 3 and the bottom surface 3b of the front panel 3, it is located above the virtual surface S'.

In the air outlet passage 2, upper and lower wind direction plates 60 and 70 are provided.
Plate-shaped support member 65 is provided for supporting the intermediate member in the intermediate portion in the directions of the rotation axes C1 and C2. The support member 65 includes a base 66 having both ends supported by the front wall 2a and the rear wall 2b, a support 67 extending from substantially the center of the base 66 forward and downward, and a front wall 2 of the base 66.
The support portion 77 extending forward and downward from the side a along the front wall 2a.
And The support portions 6 of the support member 65 are provided on the rotation axes C1 and C2 sides of the upper and lower wind direction plates 60 and 70, respectively.
Attachment plates 63 and 73 are provided correspondingly to the end portions of the attachment plates 63 and 73 and the support portions 6 of the support member 65.
7 and 77 are rotatably connected at the positions of rotation axes C1 and C2, respectively.

The first vertical direction plate 60 has a state in which one end 21 faces the upstream side of the conditioned air and a state in which the other end 22 faces the upstream side in a state substantially along the flow direction of the conditioned air in the blowing passage 2. It is rotatable in a range of about 180 degrees between the facing state. On the other hand, the second vertical wind direction plate 70 is positioned between the stop position (S) shown in FIG. 4 and a state in which the other end 72 faces the upstream side of the conditioned air substantially along the flow direction of the conditioned air in the blowout passage 2. , And is rotatable in a range of approximately 90 degrees. In this case, the second vertical wind direction plate 70 is rotatable from the stop position (S) only in a direction in which one end (upper end side) 71 is directed downward. The supporting member 65 has a shape that does not interfere with the rotation of the vertical wind direction plates 60 and 70.

Next, as shown in FIG. 5 and FIG. 6, the indoor unit I 'is a remote control device (remote control signal) for transmitting an infrared signal (remote control signal) for remotely controlling the rotation of the vertical wind direction plates 60 and 70. R). Also, the indoor unit I '
A receiving unit 35 (see FIG. 2) for receiving a remote control signal transmitted from the remote control device R; and a receiving sound generating unit 36 for generating a receiving sound in response to the reception of the remote control signal by the receiving unit 35. have.

The indoor unit I 'has a control unit 37 and a vertical wind direction motor driving circuit 38 for driving the vertical wind direction motors M1 and M2. And the control unit 3
7 drives one of the upper and lower wind direction motors M1 and M2 via the upper and lower wind direction motor drive circuit 38 based on a remote control signal of the remote control device R received by the receiving unit 35, etc. The plates 60 and 70 are independently rotated.

Here, the vertical wind direction motors M1 and M2 are:
The control unit 37 includes stepping motors.
It is possible to determine the current position of each of the upper and lower wind direction plates 60 and 70 from the predetermined initial position of each of the upper and lower wind direction plates 60 and 70 based on the sequence and the number of energization pulses to the corresponding stepping motor. It has become. That is, it is possible to determine whether the rotation direction of the upper and lower wind direction plates 60 and 70 is clockwise or counterclockwise, respectively, based on the direction of the energizing pulse of each stepping motor, and determine the angle of rotation in each direction based on the number of energizing pulses. For example, the initial position is set to 0, the clockwise rotation is set to +, and the counterclockwise rotation is set to-.
5 ° / 1 pulse), each vertical wind direction plate 6 can be added or subtracted based on the rotation direction and the number of energized pulses.
It can be recognized that 0, 70 is located in a direction and an angle from the initial position. When the rotation position of each of the upper and lower wind direction plates 60 and 70 is determined using a normal AC motor or a DC motor, a position detection sensor that detects the rotation position of each of the upper and lower wind direction plates 60 and 70 is used. Each must be provided.

The indoor unit I 'is connected to the fan motor F
M has a fan motor drive circuit 39 for driving M,
The control unit 37 controls the remote control device R
Motor drive circuit 3 based on the remote control signal of
The number of rotations of the fan motor FM is controlled via the motor 9 to change the flow rate of the conditioned air blown by the rotation of the indoor fan 8 (see FIG. 1). The control unit 37
Corresponds to the reception of the remote control signal by the receiving unit 35,
The receiving sound generating means 36 generates a predetermined receiving sound.

The controller 37 includes a room temperature detector S1 for detecting the room temperature Ta, a heat exchange temperature detector S2 for detecting the temperature (heat exchanger temperature) Tc of the heat exchangers 6, 7, and An outlet temperature detector S3 for detecting the outlet temperature Tf of the conditioned air is connected to each of them.

The controller 37 is connected to an emergency operation switch (main body operation switch) b1 (see FIG. 2) which also functions as a filter reset switch, and various display lamps D1 to D6. These various display lamps D1 to D6 are:
As shown in FIG. 2, there are an airflow lamp D1, a dry lamp D2, a timer lamp D3, a filter check lamp D4, a cooling / heating operation lamp D5 including a cooling lamp and a heating lamp, and an energy saving lamp D6.

Next, with reference to FIGS. 7 to 13, a description will be given of the relationship between the turning positions of the upper and lower wind direction plates 60 and 70 and the blowing direction of the conditioned air during the heating operation of the air conditioner. First, in the heating standard mode position of the upper and lower wind direction plates 60 and 70 shown in FIG. 7A, the first upper and lower wind direction plates 60 and the second upper and lower wind direction plates 70 both face substantially forward and downward, and The one end 61 of the vertical wind direction plate 60 is located at a position facing the upstream side of the conditioned air. In this heating standard mode position, as shown in FIG.
The conditioned air is blown from the outlet 1 toward the lower front living room.

Next, the upper and lower wind direction plates 60, shown in FIG.
In the first mode position (A) 70, the first vertical wind direction plate 60 is placed in a substantially vertical position, and the second vertical wind direction plate 7
0 is placed at the same position as the stop position (S) shown in FIG. Also in this case, the one end 61 side of the first vertical wind direction plate 60 faces the upstream side of the conditioned air. At the first mode position (A), as shown in FIG. 8B, the conditioned air is blown downward and slightly backward from the blow-out port 1, and the conditioned air flows along the wall surface. It flows toward the floor and forms a so-called floor heating state.

Next, the upper and lower wind direction plates 60 shown in FIG.
In the third mode position (B) 70, the first vertical wind direction plate 60 is placed in a horizontal position and the second vertical wind direction plate 70
Are positioned slightly forward and downward from the horizontal (substantially horizontal). In this case, the other end 62 side of the first vertical wind direction plate 60 faces the upstream side of the conditioned air. In the third mode position (B), as shown in FIG. 9 (b), the conditioned air is in a state of horizontal blowing which is blown out from the outlet 1 toward the front upper part of the room.

Next, the vertical wind direction plate 6 shown in FIG.
In the fourth mode position (C) of 0, 70, the first vertical wind direction plate 60 is placed at a position facing forward and downward, and the second vertical wind direction plate 70 is placed at a position facing slightly forward and above horizontal. It has become. In this case, the one end 61 side of the first vertical wind direction plate 60 faces the upstream side of the conditioned air. In the fourth mode position (C), as shown in FIG. 10B, a portion a in which the conditioned air is blown forward and downward from the outlet 1 by the first up-down direction plate 60, and a second up-down position It is divided into two directions by a wind direction plate 70 and a part b blown out from the outlet 1 to the front upper side. In this case, the conditioned air b blown forward and upward flows from the outlet 1 to the inlet 4, forming a partial short circuit.

Next, the vertical wind direction plate 6 shown in FIG.
In the 4 'mode position (C') of 0,70, the first
The vertical wind direction plate 60 is placed at a substantially vertical position similar to the first mode position (A) shown in FIG. 8A, and the second vertical wind direction plate 70 is placed in the fourth mode position shown in FIG. It is arranged at a position slightly closer to the horizontal than the mode position (C). Also in this 4 'mode position (C'), FIG.
As shown in FIG. 1 (b), the conditioned air is supplied to the first up-down direction plate 6
0, a part blown forward and downward from the outlet 1
And a portion b that is blown forward and upward from the outlet 1 by the second vertical wind direction plate 70. Also in this case, the conditioned air b blown forward and upward flows from the outlet 1 to the inlet 4 to form a partial short circuit.

Next, the vertical wind direction plate 6 shown in FIG.
In a fourth "mode position (C") of 0, 70, the first
8A is placed at a substantially vertical position similar to the first mode position (A) shown in FIG. 8A, and the second vertical wind direction plate 70 is placed at a horizontal position. I have. Also in this fourth "mode position (C"), FIG.
As shown in the figure, a portion "a" in which the conditioned air is blown forward and downward from the outlet 1 by the first vertical wind direction plate 60, and a portion blown forward and upward from the air outlet 1 by the second vertical wind direction plate 70. In this case as well, the conditioned air b blown forward and upward flows from the outlet 1 to the inlet 4,
Form a partial short circuit.

Next, the vertical wind direction plate 6 shown in FIG.
At the second mode position (D) of 0, 70, the first vertical wind direction plate 60 is placed at a substantially vertical position similar to the first mode position (A) shown in FIG. Of the vertical wind direction plate 70 is located at a position facing forward and downward. In the second mode position (D), the conditioned air is blown out from the outlet 1 in a direction slightly forward from directly below by the first vertical wind direction plate 60 and the second vertical wind direction plate 70. The outlet 1 is divided into a part d that is blown slightly downward from the front.
In this case, as shown in FIG. 13B, the conditioned air c blown in a direction slightly forward from directly below flows toward the floor,
The conditioned air d blown slightly downward from the front flows in the room substantially horizontally, and forms a so-called up-down shunt state.

Next, with reference to FIGS. 14 and 15, a description will be given of the relationship between the turning positions of the upper and lower wind direction plates 60 and 70 and the direction in which the conditioned air is blown during the cooling operation of the air conditioner. First, the upper and lower wind direction plates 60 and 70 shown in FIG.
In the cooling standard mode position, each of the upper and lower wind direction plates 60,
70 is located at the same position as the third mode position (B) shown in FIG. 9A. Therefore, in this cooling standard mode position, similarly to the third mode position (B) shown in FIG. 9A, the conditioned air is blown from the outlet 1 toward the upper front of the room. However, at the cooling standard mode position, as shown in FIG. 14 (b), unlike the case of the third mode position (B) at the time of heating shown in FIG. 9 (b), the low-temperature conditioned air has a large specific gravity. It falls for a while and flows slightly downward.

Next, the vertical wind direction plate 6 shown in FIG.
At the cooling oblique upper blowing mode position (E) of 0, 70,
The first vertical wind direction plate 60 is placed at the same position as the third mode position (B) shown in FIG.
Are placed at the same position as the fourth mode position (C) shown in FIG. 9A. In the cooling oblique upper blowing mode position, as shown in FIG. 15B, the conditioned air is in an oblique upper blowing state in which the air is blown from the outlet 1 in a direction slightly higher than horizontal.

Next, with reference to FIG. 16, the relationship between the turning positions of the upper and lower wind direction plates 60 and 70 and the direction in which the conditioned air is blown out during the dehumidifying operation of the air conditioner will be described. FIG.
In the dehumidification mode position (F) of the vertical wind direction plates 60 and 70 shown in FIG. 9, the first vertical wind direction plate 60 is placed at a position closer to the horizontal than the third mode position (B) shown in FIG.
The second vertical wind direction plate 70 is placed at the same position as the cooling oblique upper blowing mode position (E) shown in FIG. In the dehumidification mode position (F), the conditioned air is blown from the outlet 1 to the front upper side. In this case, the conditioned air blown forward and upward is blown out from the outlet 1
To the suction port 4 to form a so-called short circuit.

Next, the upper and lower wind direction plates 60 and 70 described above are used.
The relationship between each mode position and the flow rate of the air-conditioned air will be described. First, when the upper and lower wind direction plates 60 and 70 are in the heating standard mode position or the third mode position (B),
The blowing flow rate of the conditioned air is set to a predetermined heating normal air volume. When the upper and lower wind direction plates 60 and 70 are in the first mode position (A), the second mode position (D), or the fourth to fourth "mode positions (C to C"), a predetermined value is obtained from the heating normal air flow. "Normal heating air volume +1 tap" which is larger by one tap.

Next, when the upper and lower wind direction plates 60 and 70 are in the cooling standard mode position or the cooling oblique upper blowing mode position (E), the blowout flow rate of the conditioned air is set to a predetermined cooling normal air volume. When the upper and lower wind direction plates 60 and 70 are at the dehumidification mode position (F), the cooling normal air flow is smaller by one predetermined tap than the cooling normal air flow.
And

Next, the operation of the present embodiment having the above configuration will be described. According to the present embodiment, first,
By placing the upper and lower wind direction plates 60 and 70 in the first mode position (A) shown in FIG.
Since it is placed in a position to close the front upper side of the outlet, the second
There is no leakage of conditioned air between the upper and lower wind direction plates 70 and the air outlets, and the area of the air outlets is greatly reduced by the second upper and lower air direction plates 70. The wind speed of the blow right below formed by the vertical wind direction plate 60 increases.

Next, the upper and lower wind direction plates 60 and 70 will be described with reference to FIG.
11A, the air blow direction during the heating operation can be changed to the front lower direction by the first vertical wind direction plate 60 and the second vertical wind direction plate. It can be divided into two directions, front and upper by 70.
The conditioned air blown forward and upward by the second vertical wind direction plate 70 forms a partial short circuit, is sucked again from the suction port, is reheated, and is heated forward and downward by the first vertical wind direction plate 60. A high-temperature blowing state that raises the temperature of the wind is formed. In this case, FIGS. 9A to 11
As shown in (a), the upper and lower wind direction plates 60 and 70 are located at positions where their center lines are substantially orthogonal to each other, so that the other ends of the first and second wind direction plates 60 and 70 are provided. Leakage of the conditioned air from the space between the air conditioner 72 and the side 72 can be reduced.

Further, the upper and lower wind direction plates 60 and 70 are connected to each other as shown in FIG.
11A to the fourth mode position (A) to the fourth "mode position (A") or the second mode position (D) shown in FIG. Blowing forward and downward forms a main flow having a large flow rate of the conditioned air (thick arrow). Blowing by the second vertical airflow direction plate 70 in a front upper direction or a slightly lower direction from the front is a tributary flow having a small flow rate of the conditioned air. (Thin arrows). Then, the blowing directions of the main stream and the tributaries have a mutual influence, but the blowing direction of the main stream slightly changes with the change of the blowing direction of the tributary.

As a result, FIG. 9A to FIG.
As shown in FIG. 13A and FIG. 13A, while the first vertical wind direction plate 60 is fixed at a substantially vertical position, the second vertical wind direction plate 70 is moved forward and downward from a position facing forward and upward. By setting a plurality of positions (a fourth mode position to a second mode position) up to the facing position, the first vertical wind direction plate is changed in accordance with a change in the direction of the tributary flow by the second vertical wind direction plate 70. 60
Can be changed in a plurality of directions from a direction slightly closer to the front to a lower front than directly below (see FIGS. 9B to 11B and FIG. 13B). . Also, in this case, since the change in the main stream blowing direction is small with respect to the change in the branch blowing direction, the rotation position of the second vertical airflow direction plate 70 is changed relatively large, so that the first vertical direction is changed. The direction in which the main flow is blown out by the wind direction plate 60 can be finely changed.

Specifically, FIGS. 9B to 11 B,
And the fourth mode position (A) as shown in FIG.
~ Fourth "mode position (A '), and a second mode position in (D), the main flow of blowing direction angle Arufa～arufa ₃ is alpha <
It changes according to the relationship of α ₁ <α ₂ <α ₃ .

Next, the vertical wind direction plates 60 and 70 are
In the case of placing in the second mode position (D) shown in FIG. 13 shown in (a), as shown in FIG. 11 (b), the blowing direction at the time of the heating operation is slightly lower than directly below the first vertical wind direction plate 60. It is possible to form a vertical diverting state divided into two directions, a forward direction c and a slightly lower forward direction d by the second vertical wind direction plate 70. In addition, the second vertical wind direction plate 7
The air-conditioning air d blown slightly downward from the front by 0 is a tributary having a small flow rate and a warm air having a small specific gravity, and therefore flows substantially horizontally forward. Thereby, the vicinity of the floor surface is warmed by the warm air c in a direction slightly forward from immediately below the first vertical wind direction plate 60, and the interior of the room is heated by the warm air d forward by the second vertical wind direction plate 70. Can be warmed.

Also, in this case, since the projection direction of the conditioned air can be deflected upward by the projections 74 of the second vertical wind direction plate 70, the rotation position of the second vertical wind direction plate 70 is substantially horizontal. A stable upper and lower flow splitting state can be formed in a wide range from to the lower front. For example, FIG.
As shown schematically in the figure, when using the substantially flat plate-like second vertical wind direction plate 90 without the projection 74, the second vertical direction plate is placed in a state where the first vertical wind direction plate 80 is in the vertical position. If the wind direction plate 90 slightly faces upward, the air blown by the second vertical wind direction plate 90 flows upward and enters the partial short circuit state (see the symbol i). Also, when the second vertical wind direction plate 90 is slightly too downward, the blowing by the second vertical wind direction plate 90 flows downward and merges with the downward flow by the first vertical wind direction plate 80, The air blows forward and downward in one direction (merged state) (see reference numeral iii).

Therefore, in this case, the upper and lower diverting state can be formed only in an extremely narrow range from the substantially horizontal position of the second upper and lower wind direction plates 90 to a position slightly forward and lower than horizontal (reference numeral). ii). In addition, the turning position of the second vertical wind direction plate 90 that can form the upper and lower diverting state depends on conditions such as the temperature and flow rate of the conditioned air to be blown out. Changes, the state easily shifts to the short circuit state or the merging state. Furthermore, since the state of the flow is stabilized when it shifts to the merged state, in order to form the upper and lower branching state again,
It is necessary to perform extremely fine rotation control in which the second vertical wind direction plate 90 is once returned to the position of the short circuit state, and then gradually rotated forward and downward to stop immediately before the position where the two are joined. is there.

On the other hand, as shown schematically in FIG. 18, if the second vertical wind direction plate 70 on which the protrusion 74 is formed is used, the first vertical wind direction plate 80 is in the vertical position. In the above, the second vertical airflow direction plate 70 forms a vertical shunting state (see reference numeral II) in a fairly wide range from a substantially horizontal position (see reference numeral I) to a position facing forward and downward (see reference numeral III). Can be. For this reason, even if the conditions such as the temperature and the flow rate of the conditioned air to be blown change, it is possible to obtain a stable upper / lower diverging state in which the transition to the short circuit state or the merging state is low.

Note that, instead of the second vertical wind direction plate 70 of the present embodiment shown in FIG. 19 (a), FIGS.
Even if the second vertical wind direction plates 170 to 370 shown in (d) are used, it is possible to obtain the above-mentioned stable vertical flow split state. First, the second vertical wind direction plate 1 shown in FIG.
70 has a curved shape as a whole, and its upper surface 1
On the 70a side, the radius of curvature r2 of the downstream end on the one end 171 side is smaller than the radius of curvature r1 on the other end 172 side portion.

Next, the second vertical wind direction plate 270 shown in FIG. 19 (c) has a curved shape as a whole, and a projection 274 is formed on the upper surface 270a side at the downstream end 271 side. The radius of curvature r3 of the portion corresponding to the upstream side of the protrusion 274 is smaller than the radius of curvature r1 of the portion on the other end 272 side.

The second vertical wind direction plate 370 shown in FIG. 19 (d) has a substantially flat plate shape as a whole, and a projection 374 is formed on the upper surface 370a at the downstream end 371 side. ing. This projection 374
Is different from the projecting portion 74 of the second vertical wind direction plate 70 shown in FIG. 19A, and the surface on one end 371 side is a substantially vertical surface.

Next, each of the upper and lower wind direction plates 60 and 70 is moved to the first mode position (A), the second mode position (D), or the fourth to fourth mode positions (D).
When in the 4 "mode position (C to C"), the blowing resistance of the conditioned air by the upper and lower wind direction plates 60 and 70 is greater than in the heating standard mode position, so that the blowing flow rate is likely to decrease. However, since the blowout flow rate in the former case is larger than the blowout flow rate (heating normal air flow rate) in the latter case (heating normal air flow rate + 1 tap), it is possible to suppress a decrease in the blowout flow rate. As a result, the heat exchangers 6 and 7 are
, And a decrease in the heating operation efficiency due to an increase in the heat exchanger temperature Tc can be prevented.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIG. 11, FIG. 12, and FIG. The indoor unit according to the present embodiment is different from the indoor unit according to the first embodiment in that the upper and lower wind direction plates 60 and 70 are moved for a certain operation time during the heating operation.
After holding at the 4 'mode position (C') shown in FIG. 1 or the 4 "mode position (C") shown in FIG. 12, it is moved to the second mode position (D) shown in FIG. .

According to this embodiment, during a certain operation time,
By holding each of the upper and lower wind direction plates 60 and 70 at the fourth 'mode position (C') or the fourth "mode position (C"), the first
The direction of the main flow blown by the vertical wind direction plate 60 is set slightly forward from directly below, so that the resident is heated without blowing strong wind, and then the second vertical wind direction plate 70 is moved to the second mode position (D). , The mainstream blowing direction of the first vertical wind direction plate 60 is moved forward and downward, and the wind hitting the occupant is increased. As a result, it is possible to prevent the resident from feeling uncomfortable due to feeling of ventilation or cool wind without suddenly blowing a strong wind to the resident.

Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIGS. The indoor unit according to the present embodiment is different from the indoor unit according to the first embodiment in that, during the heating operation, the upper and lower wind direction plates 60 and 70 are moved to the first mode position (A) shown in FIG.
From the first mode to the second mode position (D) shown in FIG.

According to the present embodiment, each of the upper and lower wind direction plates 60,
When 70 is in the first mode position, the blowing direction is the downward direction, and when it is in the second mode position, the blowing direction is slightly forward from directly below the first vertical wind direction plate 60 and the second vertical wind direction. The upper and lower shunts divided in two directions by the plate 70 are formed. Then, during the heating operation, the first vertical wind direction plate 60 is sequentially moved from the first mode position to the second mode position, so that the blowing direction is sequentially changed from directly below to the vertical branching state. For this reason, by moving from the first blow-out directly below to the subsequent upper and lower shunting state, it is possible to heat the occupants without a strong wind without blowing strong wind, Is circulated throughout the room, so that the room temperature can be made uniform.

Fourth Embodiment Next, FIGS. 5, 6, 8, 11, 13, and 20 will be described.
A fourth embodiment of the present invention will be described with reference to FIG. The indoor unit of the present embodiment performs the operation control as shown in the flowchart of FIG. 20 in the indoor unit of the first embodiment. Also, as a premise,
The control unit 37 shown in FIG. 5 has a function of an operation time timer for detecting the elapsed time ti from the start of the heating operation of the air conditioner, and the elapsed time ti and the outlet temperature detected by the outlet temperature detector S3. Based on Tf, it has a function as a discriminating means for discriminating between a transition period and a stable period of the air conditioning operation (heating operation in this case) of the air conditioner. The control unit 37 controls the movement of the turning position of each of the upper and lower wind direction plates 60 and 70 based on the determination result as the determination means.

Here, the transition period of the heating operation means that the operation time ti is short or the room temperature Ta, the heat exchanger temperature Tc, or the outlet temperature Tf is relatively low, and the heating operation is not yet stable. In this transitional period, if the occupant hits the conditioned air during such a transitional period, the occupant tends to feel a cool wind. On the other hand, the stable period refers to a state where the operation time ti has sufficiently passed or the room temperature Ta, the heat exchanger temperature Tc, or the blowout temperature Tf has become sufficiently high, and the heating operation has been stabilized. The occupants are less likely to feel the cool air feeling even if the occupants are exposed to the conditioned air.

Next, the flowchart of FIG. 20 will be described. In FIG. 20, first, in step 100, if it corresponds to the start of the heating operation of the air conditioner, the operation time timer ti is started (step 101), and the vertical wind direction plates 60, 70 are moved to the first mode position (A). On the other hand, in step 100, when the operation is not started and in step 1
If the heating operation is not being performed in step 03, step 11
If the operation stop command (operation stop signal from the remote control device R) is not received at 0, operation processing of another mode (cooling operation mode or dehumidification operation mode) is performed (step 113). If the command has been received, the upper and lower wind direction boards 60 and 70 are moved to the stop position (S) (Step 111), and then the operation stop processing is performed (Step 112).

Next, when the heating operation is being performed in step 103, the operation time ti is set to 10 in step 104.
If the distance exceeds the limit, the vertical wind direction plates 60, 70 are moved from the first mode position (A) to the fourth mode position (C '). Then, at step 106, the operation time ti is still 2
If it does not exceed 0 minutes, the blow-out temperature Tf is detected (step 108). It is moved from the mode position (C ') to the second mode position (D) (step 107). Also,
In step 109, the blowing temperature Tf is set to a predetermined reference blowing temperature T.
Before it becomes higher than fs, the operation time ti
Is longer than 20 minutes, the vertical wind direction plates 60 and 70 are moved from the 4 'mode position (C') to the second mode position (D) (step 107).

Next, the operation of the present embodiment having such a configuration will be described. According to the present embodiment, the state in which the vertical wind direction plates 60 and 70 have moved to the first mode position (A) until the operation time ti has elapsed 10 minutes from the start of the heating operation (ie, the first transition period). Since the conditioned air forms the above-described blow-down state (see FIG. 8B), it is possible to heat the vicinity of the floor in the room with almost no wind on the occupants. Then, until the operation time ti has elapsed from 10 minutes to 20 minutes (in other words, the second transition period), the vertical wind direction plates 60 and 70 have moved to the 4 'mode position (C'). As the conditioned air forms the high-temperature blowing state (see FIG. 11B),
The temperature of the hot air that first hits the occupants can be raised.

Thereafter, after the blowout temperature Tf becomes higher than the predetermined reference blowout temperature Tfs or the operation time ti has passed 20 minutes (a stable period), the vertical wind direction plates 60 and 70 are set to the second position.
Since the air-conditioning air is moved to the mode position (D) and the conditioned air forms the above-mentioned vertical shunt state (see FIG. 13B),
With the temperature of the conditioned air sufficiently increased, the wind in the direction of the occupant can be increased, and the upper part of the room can be warmed.

As described above, by moving the upper and lower wind direction plates 60 and 70 based on the determination result between the transition period and the stable period of the heating operation, the wind in the resident direction is gradually increased while the wind in the resident direction is gradually increased. Then, the state is shifted to a state in which the entire room is heated, and the entire room can be heated without giving the occupants a feeling of cool air.

The case where the movement of the turning position of each of the upper and lower wind direction plates 60 and 70 is controlled based on the elapsed time ti from the start of the heating operation and the blowing temperature Tf has been described above. The heat exchanger temperature Tc detected by the heat exchange temperature detector S2 may be used. Further, based on the elapsed time ti, the room temperature Ta detected by the room temperature detector S1, the blowout temperature Tf, or the heat exchanger temperature Tc, or any combination thereof, the rotation of each of the upper and lower wind direction plates 60, 70. The movement of the position may be controlled.

Also, in step 105 of the flowchart of FIG. 20, the case where the upper and lower wind direction plates 60 and 70 are moved to the 4 'mode position (C') has been described. Alternatively, the fourth mode position (C) or the fourth "mode position (C") may be used.

Fifth Embodiment Next, a fifth embodiment of the present invention will be described with reference to FIG. 5, FIG. 6, FIG. 8, FIG. 9, FIG. 10, FIG. The indoor unit of the present embodiment performs the operation control as shown in the flowchart of FIG. 21 in the indoor unit of the first embodiment. As a premise, the remote controller R shown in FIG. 6 has an airflow switch (operation switch) b2 for transmitting an airflow change operation command signal (airflow signal). The control unit 37 shown in FIG. 5 has a function of an airflow switch timer (operation switch timer) for detecting an elapsed time (airflow switch time) t after receiving the airflow signal of the remote control device R, On the basis of the elapsed time t, the room temperature Ta detected by the room temperature detector S1, and the heat exchanger temperature Tc detected by the heat exchange temperature detector S2, a transition period of the air-conditioning operation of the air conditioner (heating operation in this case). It has a function as a discriminating means for discriminating between the period and the stable period. Then, the control unit 37
Controls the movement of the rotational position of each of the upper and lower wind direction plates 60 and 70 based on the determination result as the determination means, and changes the flow rate of the conditioned air blown by the rotation of the indoor fan 8 (see FIG. 1). It has become.

Here, the transition period of the heating operation means that the elapsed time t after receiving the airflow signal is short, or the room temperature Ta, the heat exchanger temperature Tc, or the outlet temperature Tf is relatively low. The state where heating operation is not stable yet,
When the resident is exposed to the conditioned air during such a transitional period, the resident tends to feel a feeling of cool wind. On the other hand, the stable period
The operation time ti has elapsed sufficiently, or the room temperature Ta, the heat exchanger temperature Tc, or the outlet temperature Tf has become sufficiently high, indicating that the heating operation is stable. In such a stable period, the occupants are supplied with air-conditioned air. Even if it hits, it is hard for residents to feel the cold wind.

Next, the flowchart of FIG. 21 will be described. At the start of the heating operation of the air conditioner, the upper and lower wind direction plates 60 and 70 are in the heating standard mode position, and the air volume is set to the heating normal air volume. Is received (step 120), the vertical wind direction plates 60 and 70 are moved from the heating standard mode position to the first mode position (A), and the air volume is increased to the heating normal air volume + 1 tap (step 121). Then, the airflow switch timer t is started (step 122), and the detection of the room temperature Ta and the heat exchanger temperature Tc is started (step 123).

Thereafter, at step 124, the elapsed time t becomes 2
When the time exceeds 0 minutes, the upper and lower wind direction plates 60 and 70 are moved from the first mode position (A) to the third mode position (B), and the air volume is returned to the normal heating air volume (step 125). Thereafter, in step 126, the elapsed time t is 30
Minutes, the room temperature Ta becomes equal to or higher than the reference temperature (Tsc−3) ° C. in step 127, and
If the heat exchanger temperature Tc is lower than 35 ° C. at 28, the upper and lower wind direction plates 60 and 70 are moved from the third mode position (B) to the fourth mode position (C), and the air volume is increased by the heating normal air volume + 1 tap. (Step 129).

Thereafter, at step 130, the elapsed time t becomes 4
If the time exceeds 0 minutes, the room temperature Ta
When the temperature is equal to or higher than the reference temperature (Tsc-1) ° C., the vertical wind direction plates 60 and 70 are moved from the fourth mode position (C) to the second mode position (D). Step 128
If the heat exchanger temperature Tc is equal to or higher than 35 ° C., the vertical wind direction plates 60 and 70 are moved from the third mode position (B) to the second mode position (D) (step 132).

Next, the operation of the present embodiment having such a configuration will be described. According to the present embodiment, first, when the airflow signal from the remote control device R is received in a state where the upper and lower wind direction plates 60 and 70 are placed in the heating standard mode, the airflow switch time t is 20 minutes from the reception of the airflow signal. Until the time elapses (ie, the first transitional period), the vertical wind direction plate 6
0, 70 are moved to the first mode position (A), and the conditioned air forms the above-described blow-down state (see FIG. 8B). The area near the surface can be warmed.

Then, until the air flow switch time t has elapsed from 20 minutes to 30 minutes (in other words, the second transition period), the vertical wind direction plates 60 and 70 are in the third mode position (B).
And the air-conditioned air forms the above-mentioned horizontal blowing state (see FIG. 9B). Can be raised without hitting.

Next, when the airflow switch time t has passed 30 minutes, the room temperature Ta is changed to the predetermined reference temperature (Tsc-3).
° C or more, and from the state where the heat exchanger temperature Tc is less than 35 ° C until the room temperature Ta becomes equal to or more than a predetermined reference temperature (Tsc-1) ° C when the airflow switch time t has passed 40 minutes. During the period (ie, the third transition period), the upper and lower wind direction plates 60 and 70 move to the fourth mode position (C), and the conditioned air forms a high-temperature blowing state (FIG. 10).
(Refer to (b)), the temperature of the hot air that first hits the resident can be increased.

Next, when the air flow switch time t has passed 30 minutes, the room temperature Ta is changed to the predetermined reference temperature (Tsc-3).
° C or more, and when the heat exchanger temperature Tc becomes 35 ° C or more, or when the airflow switch time t has passed 40 minutes,
When the room temperature Ta is equal to or higher than the predetermined reference temperature (Tsc-1) ° C. (stable period), the upper and lower wind direction plates 60 and 70 are moved to the second mode position (D), and the conditioned air is moved upward and downward. Since the split flow state is formed (see FIG. 13B), it is possible to increase the wind toward the occupant and to warm the upper part of the room when the temperature of the conditioned air is sufficiently increased.

As described above, by moving the upper and lower wind direction plates 60 and 70 based on the determination result between the transition period and the stable period of the heating operation, the wind toward the occupant is gradually increased while the direction toward the floor surface is gradually increased. Then, the state is shifted to a state in which the entire room is heated, and the entire room can be heated without giving the occupants a feeling of cool air.

The case where the movement of the turning position of each of the upper and lower wind direction plates 60 and 70 is controlled based on the elapsed time t after receiving the airflow signal, the room temperature Ta, and the heat exchanger temperature Tc has been described. However, only one of the room temperature Ta and the heat exchanger temperature Tc may be used, and the outlet temperature Tf detected by the outlet temperature detector S3 may be used instead of the heat exchanger temperature Tc. Further, the movement of the turning position of each of the upper and lower wind direction plates 60 and 70 is controlled based on any one of the elapsed time t, the room temperature Ta, the heat exchanger temperature Tc, and the blowout temperature Tf, or any combination thereof. You may. Specifically, for example, step 127 of the flowchart in FIG.
Any or all of step 128 or step 131 may be omitted.

Further, in step 129 of the flow chart of FIG. 21, the case where the vertical wind direction plates 60 and 70 are moved to the fourth mode position (C) has been described, but the fourth mode position (C) is replaced with the fourth mode position (C). The 4 'mode position (C') or the fourth "mode position (C") may be used.

Sixth Embodiment Next, a sixth embodiment of the present invention will be described with reference to FIG. 5, FIG. 6, FIG. 14, and FIG. The indoor unit according to the present embodiment is the same as the indoor unit according to the first embodiment, except that the remote controller R shown in FIG. 6 has a spray avoidance switch (blow avoidance operation switch) b3 for transmitting a spray avoidance command signal. ing. The control unit 37 shown in FIG. 5 has a function as an operation detecting means for detecting the presence or absence of the operation of the spray avoidance switch b3, and detects the operation of the spray avoidance switch b3 during the cooling operation (the spray from the remote control device R). When the avoidance command signal is received), the upper and lower wind direction plates 60 and 70 are moved from the cooling standard mode position to the cooling oblique upward blowing mode position (E).

Further, the control unit 37 controls any one of the room temperature Ta detected by the room temperature detector S1, the heat exchanger temperature Tc detected by the heat exchange temperature detector S2, and the outlet temperature Tf detected by the outlet temperature detector S3. , Or a combination of these,
It is determined whether or not the conditioned air is directly blown into the living area, and if it is determined that the conditioned air is directly blown, the upper and lower wind direction plates 60 and 70 are moved from the cooling standard mode position to the cooling inclined upward blowing mode position (E ).

Next, the operation of the present embodiment having the above configuration will be described. According to the present embodiment, during the cooling operation, each of the upper and lower sides is arbitrarily set by manual operation of the spray avoidance operation switch or automatically based on the detected temperatures Ta, Tc, Tf of the temperature detectors S1 to S3. Wind direction plate 6
0, 70 can be moved from the cooling standard mode position to the cooling oblique upper blowing mode position. When the upper and lower wind direction plates 60 and 70 are in the cooling standard mode position, when the conditioned air falls and blows directly to the living area, the upper and lower wind direction plates 60 and 70 are moved obliquely upward from the cooling standard mode position. By moving the conditioned air to the obliquely upward blowing state by moving the conditioned air to the blowing mode position, it is possible to avoid a state in which the conditioned air is directly blown into the living area.

Seventh Embodiment Next, a seventh embodiment of the present invention will be described with reference to FIG. 2, FIG. 5, FIG. 6, and FIG. The indoor unit of the present embodiment is different from the indoor unit of the first embodiment in FIG.
Operation control including a demonstration mode (exhibition mode) as shown in the flowchart of FIG. As a premise, the remote control device R shown in FIG. 6 has an airflow switch (exhibition operation switch) b2 for transmitting an airflow change operation command signal (airflow signal). And
The control unit 37 shown in FIG. 5 includes a function of a demo mode switching timer for detecting an elapsed time (emergency operation switch time) tp from the operation of the emergency operation switch (main body operation switch) b1, and a function of the remote control device R Airflow signal reception times m
Has the function of an airflow signal reception counter for counting the airflow. Further, the control unit 37 serves as a start determination unit for determining whether or not to start the demonstration mode based on the operation of the emergency operation switch b1, the elapsed time tp from this operation, and the number m of times of receiving the airflow signal. Function.

Next, the flowchart of FIG. 22 will be described. In FIG. 22, first, when the emergency operation switch b1 is not operated in step 140, operation processing other than the demonstration mode is performed (step 141). On the other hand, if the emergency operation switch b1 has been operated in step 140 and if the emergency operation switch b1 has not been operated for the first time since the start of power supply (insertion of the power plug into the outlet) in step 142, the filter timer is started in step 147. The (operation accumulated time timer) is reset, and the emergency operation (cooling / heating automatic operation with a fixed set temperature) is started. On the other hand, if it is the first operation of the emergency operation switch b1 from the start of energization in step 142, the demo mode switching timer tp
Is started (step 143), and the reception counter is reset (m = 0) (step 144).

Next, in steps 145 to 150,
When the airflow signal is received twice or more (the airflow switch b2 is operated twice or more) while the operation of the emergency operation switch b1 is continued before the emergency operation switch time tp elapses 10 seconds (m ≧ 2). Only in demo mode (steps 151-
154) is activated. On the other hand, when the operation of the emergency operation switch b1 is released before the emergency operation switch time tp has elapsed 10 seconds (steps 145, 1
46) Or, when the emergency operation switch time tp passes 10 seconds before the airflow switch b2 is operated twice or more even if the operation of the emergency operation switch b1 is continued (steps 148 to 150, step 145). Is Step 1
At 47, the filter timer is reset and the emergency operation is started.

Next, the demo mode (steps 151 to 15)
When 4) is activated, first, the reception number counter is reset (m = 0) (step 151). Then, a demo mode (mod (m, 9)) according to the number of receptions of the airflow signal (the number of times the airflow switch b2 is operated) m is performed (steps 152 to 154). Where mod
(M, 9) means the remainder (0, 1, 2, ..., 8) of m ÷ 9, and the demo modes (mod (m, 9)) correspond to modes 0 to 8 in Table 1, respectively. ing. Therefore, the demo mode returns to mode 0 every time the number of times of receiving the airflow signal becomes a multiple of nine.

Then, as shown in Table 1, in each of the demonstration modes 0 to 8 (even though the actual operation of the air conditioner itself is stopped), the vertical wind direction plates 60 and 70 are moved to the respective mode positions. In response to the change of each mode position of the upper and lower wind direction plates 60, 70, the display lamps D1, D2, D
5, D6 (ON, OFF) and the flow rate of the conditioned air blown by the change in the number of rotations of the fan are changed. In this demonstration mode, an "abnormal display (for example, blinking of operation lamp D5)" which may be performed in a normal operation mode other than the demonstration mode is not performed, and other remote control signals from remote control device R are not displayed. It is not accepted. The demo mode is released by terminating the power supply (withdrawing the power plug from the outlet).

[0146]

[Table 1] Next, the operation of the present embodiment having such a configuration will be described. According to the present embodiment, in a normal operation mode other than the demo mode, even if an attempt is made to demonstrate the operation of the indoor unit during an exhibition at a store, an abnormal display is displayed, or in the heating mode (when the heat exchanger temperature is low). Therefore, even if a sufficient demonstration cannot be performed because the indoor fan does not operate (due to the operation of the cold air blowing prevention control), the demonstration mode can be activated to effectively demonstrate the operation of the indoor unit. It can be carried out. Further, in response to the change of each mode position of the upper and lower wind direction plates 60 and 70, each display lamp D1, D2,
Since the display of D5 and D6 and the flow rate of the conditioned air are changed, a more effective demonstration can be performed.

Further, it is determined whether or not to start the exhibition mode based on a combination of the operation contents of the airflow switch (exhibition operation switch) b2 of the remote control device R and the emergency operation switch (main body operation switch) b1. Activate,
Can not be started. Further, after the start of the demo mode, Table 1 is sequentially displayed according to the number of operations (the number of times of reception of the airflow signal) m of the airflow switch b2 of the remote controller R.
The switching between the demonstration modes 0 to 8 as shown in FIG.

[0148]

According to the first aspect of the present invention, during the heating operation, the second vertical wind direction plate is located at a position that closes the front upper side of the air outlet. Since there is no leakage of the conditioned air from the air outlet and the area of the air outlet is greatly reduced by the second vertical air direction plate, it is formed by the second vertical air direction plate placed at a substantially vertical position. The wind speed of the blowout just below increases. For this reason, the warm air blown directly below can reliably reach the floor, and the vicinity of the floor can be sufficiently warmed to improve the comfort.

According to the second aspect of the present invention, the blowing direction at the time of the heating operation can be divided into two directions, that is, a front lower direction by the first vertical wind direction plate and a front upper direction by the second vertical wind direction plate. . Then, the warm air flowing forward and upward by the second vertical wind direction plate is sucked from the suction port again and reheated, thereby forming a high-temperature blow state in which the temperature of the warm air flowing forward and downward by the first vertical wind direction plate is increased. I do. Therefore, high-temperature warm air can be blown into the living area to perform effective heating.

According to the fourth aspect of the present invention, the direction of the main stream and the direction of the branch flow influence each other, but the direction of the main stream blow changes slightly with respect to the change of the direction of the branch flow. The main air blowing direction can be finely changed by largely changing the rotational position of the other vertical wind direction plate forming the tributary while keeping the rotational position of the one vertical wind direction plate forming one. For this reason, it is possible to finely change the mainstream blowing direction without requiring fine positioning of the upper and lower wind direction plates. As a result, it is not necessary to finely adjust the direction of one of the upper and lower wind direction plates forming the main flow, and a motor having a coarse resolution can be used for driving the upper and lower wind direction plates.

According to the fifth aspect of the present invention, the main flow formed by the first vertical wind direction plate and the blowout direction of the tributary flow formed by the second vertical wind direction plate have a mutual influence. However, the blowing direction of the main stream changes little by little with the change of the blowing direction of the tributary. Thus, in a state where the first vertical wind direction plate is located at a substantially vertical position, the second vertical wind direction plate is set at a plurality of positions between a position facing forward and upward and a position facing forward and downward. The second
With the change of the direction of the tributary blow by the vertical wind direction plate,
The direction in which the main flow is blown out by the first upper and lower wind direction plates can be changed in a plurality of directions from a direction slightly closer to the front to a lower front. For this reason, it is not necessary to finely position each of the upper and lower wind direction plates, and only by changing the setting of the rotational position of the second upper and lower wind direction plates, the mainstream blowing direction is shifted from a position slightly below the front to a position below the front. It can be varied in multiple directions between.

According to the sixth aspect of the present invention, the blowing direction during the heating operation is two directions: a direction slightly forward from immediately below the first vertical wind direction plate and a forward direction from the second vertical wind direction plate.
It is possible to form a vertically divergent state divided in directions.
With this, while warming the vicinity of the floor with warm air in a direction slightly forward from directly below the first vertical wind direction plate,
The upper part of the room can be warmed by warm air flowing forward by the second vertical wind direction plates. As a result, effective heating can be performed without blowing a strong wind into the lower front living area, so that the resident feels a feeling of ventilation or cool wind, or induces the occupant's throat to dry. Can be prevented.

According to the invention described in any one of the seventh to ninth aspects, in the invention described in the sixth aspect, the direction in which the conditioned air is blown out by the second vertical wind direction plate can be deflected upward. A stable upper / lower diverting state can be formed in a wide range of the rotation position of the upper and lower wind direction plates from substantially horizontal to lower front.

According to the tenth aspect of the present invention, while the rotation position of the first vertical wind direction plate forming the main flow is set at a substantially vertical position, the second vertical wind direction plate forming the tributary is connected to the outlet. By sequentially moving to a plurality of positions between the closed position and the position facing forward and downward, the blowing direction of the main flow can be sequentially changed to a plurality of directions from directly below to forward and downward. For this reason, it is not necessary to finely position each of the upper and lower wind direction plates, and only by sequentially moving the setting of the rotational position of the second vertical direction plate, a plurality of main flow blowing directions can be set between the lower right direction and the front lower direction. Direction.

According to the twelfth aspect of the invention, during the heating operation, the first vertical wind direction plate is sequentially moved from the first mode position to the second mode position. It changes sequentially to a state. For this reason, by moving from the first blow-out directly below to the subsequent upper and lower shunting state, it is possible to heat the occupants without a strong wind without blowing strong wind, Is circulated throughout the room, so that the room temperature can be made uniform.

According to the twenty-second aspect of the present invention, during the cooling operation, if the air conditioning air falls and blows directly to the living area when the vertical wind direction plate is in the cooling standard mode position, the vertical wind direction plate is moved. By moving to the cooling oblique upper blowing mode position, it is possible to avoid a state where the conditioned air blows directly to the living area. For this reason, the state where the flow of the conditioned air is directly applied to the occupant and the comfort is reduced can be eliminated.

According to the twenty-third aspect of the present invention, when the air conditioning air falls and blows directly to the living area when the upper and lower wind direction plates are in the cooling standard mode position during the cooling operation, the upper and lower wind directions are different. By moving the plate to the cooling oblique upper blowing mode position, it is possible to avoid a state in which the conditioned air blows directly to the living area. For this reason, the state where the flow of the conditioned air is directly applied to the occupant and the comfort is reduced can be eliminated.

According to the twenty-fifth aspect, the first aspect is provided.
In the invention described in 2, 13, 14, or 22, by setting the display mode, each vertical wind direction plate can be moved to each mode position while the operation of the air conditioner is stopped,
During the exhibition at the store, an effective demonstration of the operation of the indoor unit can be performed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an indoor unit of an air conditioner according to a first embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing the appearance of the indoor unit shown in FIG. 1 around a display unit.

FIG. 3 is a perspective view showing a main part of the indoor unit shown in FIG. 1 with a front panel removed.

FIG. 4 is an enlarged view showing an outlet portion of the indoor unit shown in FIG. 1 in a state where the upper and lower wind direction plates are at a stop position.

FIG. 5 is a diagram showing a main part of a control circuit configuration in the air-conditioning apparatus according to the first embodiment of the present invention.

FIG. 6 is a front view showing the remote control device according to the first embodiment of the present invention.

7A is a partial cross-sectional view of the indoor unit shown in FIG. 4, showing a state in which the upper and lower wind direction plates are in a heating normal mode position, and FIG. 7B is a rotation of the upper and lower wind direction plates in FIG. The schematic diagram which shows the blowing range of the conditioned air in a position.

8A is a partial cross-sectional view of the indoor unit shown in FIG. 4, showing a state where the upper and lower wind direction plates are at a first mode position (A);
(B) is a schematic diagram which shows the blowing range of the conditioned air at the rotation position of the upper and lower wind direction plates in (a).

9A is a partial cross-sectional view of the indoor unit shown in FIG. 4, showing a state in which the upper and lower wind direction plates are at a third mode position (B);
(B) is a schematic diagram which shows the blowing range of the conditioned air at the rotation position of the upper and lower wind direction plates in (a).

10 (a) is a partial cross-sectional view of the indoor unit shown in FIG. 4, showing a state in which the vertical wind direction plate is at a fourth mode position (C), and FIG. 10 (b) is a vertical cross direction plate of FIG. FIG. 4 is a schematic diagram showing a blowout range of conditioned air at a rotation position of FIG.

11 (a) is a partial cross-sectional view of the indoor unit shown in FIG. 4, showing a state in which the upper and lower airflow direction plates are at a 4 ′ mode position (C ′), and FIG. The schematic diagram which shows the blowing range of the conditioned air in the rotation position of a wind direction board.

12 (a) is a partial cross-sectional view of the indoor unit shown in FIG. 4, showing a state in which the upper and lower airflow direction plates are in a fourth “mode” position (C ”), and FIG. The schematic diagram which shows the blowing range of the conditioned air in the rotation position of a wind direction board.

13 (a) is a partial cross-sectional view of the indoor unit shown in FIG. 4, showing a state where the upper and lower wind direction plates are in a second mode position (D), and FIG. 13 (b) is a vertical cross direction plate of FIG. FIG. 4 is a schematic diagram showing a blowout range of conditioned air at a rotation position of FIG.

14 (a) is a partial cross-sectional view of the indoor unit shown in FIG. 4, showing a state where the upper and lower wind direction plates are in a cooling normal mode position, and FIG. 14 (b) is a rotation of the upper and lower wind direction plates of FIG. The schematic diagram which shows the blowing range of the conditioned air in a position.

15 (a) is a partial cross-sectional view of the indoor unit shown in FIG. 4, showing a state in which the upper and lower wind direction plates are in a cooling oblique upper blowing mode position (E), and FIG. 15 (b) is a vertical sectional view of FIG. The schematic diagram which shows the blowing range of the conditioned air in the rotation position of a wind direction board.

16 (a) is a partial cross-sectional view of the indoor unit shown in FIG. 4, showing a state in which the upper and lower wind direction plates are in the dehumidification mode position (F), and FIG. 16 (b) is a view of the upper and lower wind direction plates of FIG. The schematic diagram which shows the blowing range of the conditioned air in a rotation position. The figure which shows the modification of the cross-sectional shape of the 2nd up-down wind direction board of the indoor unit shown in FIG.

FIG. 17 is a schematic diagram showing a range in which a vertical shunting state can be formed when a projection is not formed on a second vertical wind direction plate;

FIG. 18 is a schematic diagram showing a range in which a vertical shunting state can be formed when a projection is formed on a second vertical wind direction plate;

FIG. 19 is a diagram showing a modified example of the cross-sectional shape of the second upper and lower wind direction plates of the indoor unit shown in FIG. 1;

FIG. 20 is a flowchart showing operation control according to the fifth embodiment of the present invention.

FIG. 21 is a flowchart showing operation control according to a sixth embodiment of the present invention.

FIG. 22 is a flowchart illustrating operation control including a demonstration mode according to a seventh embodiment of the present invention.

FIG. 23 is a cross-sectional view showing an air outlet of an indoor unit of a conventional air conditioner.

FIG. 24 is a cross-sectional view showing an air outlet of an indoor unit of another conventional air conditioner.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Outlet 2 Outlet passage 3 Front panel 6 Indoor heat exchanger 8 Indoor fan 35 Receiving part 37 Control part 38 Vertical wind direction motor drive circuit 39 Fan motor drive circuit 60 First vertical wind direction plate (louver) 61, 71 Vertical wind direction One end of the plate 62, 72 The other end of the vertical wind direction plate 70 Second vertical wind direction plate (louver) 74, 274, 374 Projection C1, C2 Rotation axis D1 to D6 Display lamp (display means) I 'Indoor unit M1, M2 Vertical wind direction motor R Remote controller S1 Room temperature detector S2 Heat exchanger temperature detector S3 Blow-out temperature detector Ta Room temperature Tc Heat exchanger temperature Tf Blow-out temperature b1 Emergency operation switch (main body operation switch) b2 Air flow switch (air flow operation) Switch, display operation switch) b3 Spray avoidance switch (spray avoidance operation switch)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroyuki Tokita 336 Tatehara, Fuji-shi, Shizuoka Prefecture, Toshiba Fuji Plant (72) Inventor Yasuhiro Kageyama 336 Tatehara, Fuji, Shizuoka Prefecture, Toshiba Fuji Plant ( 72) Inventor Masao Isshiki 336 Tatehara, Fuji-shi, Shizuoka Prefecture Toshiba Fuji Plant Co., Ltd. (72) Inventor Kazuhiko Akiyama 336 Tatehara, Fuji City, Shizuoka Prefecture Toshiba Fuji Plant Co., Ltd. (72) Inventor Makoto Watanabe Shizuoka 336 Tatehara, Fuji City, Toshiba FEC Corporation

Claims (29)

[Claims] An air outlet for blowing air-conditioned air into a room; and an air outlet provided at the air outlet, the air-conditioning air being rotatable about a rotation axis for changing the upper and lower air blowing directions. A first vertical wind direction plate and a second vertical wind direction plate, the first vertical wind direction plate being located below and below the air outlet, and the second vertical wind direction plate being located in front of and above the air outlet. And means for independently moving the turning position of each of the upper and lower wind direction plates, wherein the first first vertical direction plate is placed at a substantially vertical position during the heating operation, and The indoor unit for an air conditioner, wherein the upper and lower wind direction plates are placed at positions where the upper and lower wind direction plates are closed in front of the outlet. 2. An air inlet for sucking room air, an air outlet provided below the air inlet for blowing conditioned air into the room, A first up-down wind direction plate and a second up-down wind direction plate rotatable around a rotation axis to change a blowing direction, wherein the first up-down and down-winding plates are located below and below the outlet. A second upper and lower wind direction plate located on the front upper side of the wind direction plate and the air outlet, and means for independently moving a rotation position of each of the upper and lower wind direction plates. The air conditioner, wherein the first vertical wind direction plate is located between a substantially vertical position and a position facing forward and downward, and the second vertical wind direction plate is located at a position facing forward and upward. Indoor unit. 3. The indoor unit of an air conditioner according to claim 2, wherein the first vertical wind direction plate and the second vertical wind direction plate are located at positions where their center lines are substantially orthogonal to each other. . 4. An air outlet for blowing air-conditioned air into a room, and provided at the air outlet, and each of the air-conditioned air is rotatable about a rotation axis to change a vertical blowing direction of the air-conditioned air. Two upper and lower wind direction plates, and means for independently moving the turning position of each of the upper and lower wind direction plates, and the turning position of one of the upper and lower wind direction plates forming a main flow having a large flow rate of the conditioned air. In a state in which the airflow direction of the main flow is changed by changing the rotation position of the other upper and lower wind direction plates that form a tributary with a small flow rate of the conditioned air, Machine. 5. An air outlet for blowing air-conditioned air into a room, and provided at the air outlet, the air-conditioning air being rotatable about a rotation axis for changing the upper and lower air blowing directions. A first vertical wind direction plate and a second vertical wind direction plate, the first vertical wind direction plate being located below and below the air outlet, and the second vertical wind direction plate being located in front of and above the air outlet. And means for independently moving the rotation position of each of the upper and lower wind direction plates, and wherein the second vertical wind direction is in a state where the first upper and lower wind direction plates are placed at a substantially vertical position. The indoor unit of an air conditioner, wherein the plate can be stopped at a plurality of positions between a position facing forward and upward and a position facing forward and downward. 6. An air outlet for blowing air-conditioned air into a room, and provided at the air outlet, the air-conditioning air being rotatable about a rotation axis for changing the upper and lower air blowing directions. A first vertical wind direction plate and a second vertical wind direction plate, the first vertical wind direction plate being located below and below the air outlet, and the second vertical wind direction plate being located in front of and above the air outlet. And means for independently moving the turning position of each of the upper and lower wind direction plates, wherein the first vertical direction plate is placed at a substantially vertical position during the heating operation, and The indoor unit of an air conditioner, wherein the upper and lower wind direction plates are located between a substantially horizontal position and a position facing forward and downward. 7. The second vertical airflow direction plate has a curved shape on the upper surface side in a cross section, and the curvature of the downstream side of the conditioned air is larger than the curvature of the upstream side. The indoor unit of the air conditioner according to claim 6, wherein 8. The air conditioner according to claim 6, wherein the second vertical direction plate has a projection protruding upward from an upper surface thereof on a downstream side of the conditioned air. Indoor unit. 9. The second vertical airflow direction plate has a substantially flat plate shape, and a projection protruding upward from an upper surface thereof is formed downstream of the conditioned air. 7. The indoor unit of the air conditioner according to 6. 10. An air outlet for blowing air-conditioned air into a room, and provided at the air outlet, each of which is rotatable about a rotation axis for changing the upper and lower blowing directions of the air-conditioned air. A first vertical wind direction plate and a second vertical wind direction plate, the first vertical wind direction plate being located below and below the air outlet, and the second vertical wind direction plate being located in front of and above the air outlet. Means for independently moving the turning position of each of the upper and lower wind direction plates, wherein the first upper and lower wind direction plates are placed in a substantially vertical position during the heating operation, and The air conditioner indoor unit, wherein the wind direction plate is sequentially moved to a plurality of positions between a position where the air outlet is closed and a position facing forward and downward. 11. The air according to claim 10, wherein said second vertical wind direction plate is held at a substantially horizontal position for a predetermined operation time and then moved to a position facing forward and downward. An indoor unit for a harmony device. 12. An air outlet for blowing air-conditioned air into a room, and provided at the air outlet, each of which is rotatable about a rotation axis for changing the upper and lower air blowing directions of the air-conditioned air. A first vertical wind direction plate and a second vertical wind direction plate, the first vertical wind direction plate being located below and below the air outlet, and the second vertical wind direction plate being located in front of and above the air outlet. And means for independently moving the rotation position of each of the upper and lower wind direction plates, and wherein the second vertical wind direction is in a state where the first upper and lower wind direction plates are placed at a substantially vertical position. A first mode position where the plate is closed at a position closing the front upper side of the outlet, and a position where the second vertical wind direction plate is positioned from a substantially horizontal position to a position pointing forward and downward. It can be stopped at the 2nd mode position, respectively. The indoor unit of the air conditioner, wherein the second vertical wind direction plate is sequentially moved from the first mode position to the second mode position. 13. The second mode position includes a state in which the second vertical wind direction plate is placed at a substantially horizontal position,
The indoor unit of an air conditioner according to claim 12, wherein the upper and lower wind direction plates are placed at a position facing forward and downward. 14. Each of the upper and lower wind direction plates further includes: a third mode position in which the first and second vertical wind direction plates are both located at substantially horizontal positions; While facing forward and downward, the second vertical wind direction plate can be stopped at a fourth mode position where the second vertical wind direction plate is located at a position facing forward and upward. From the mode position, the third mode position, the fourth mode position,
14. The indoor unit of the air conditioner according to claim 12, wherein the indoor unit is sequentially moved to the second mode position. 15. An air conditioner further comprising a manually operable operation switch, wherein when the operation switch is operated during the heating operation, each of the upper and lower wind direction plates is moved to the first mode position. The indoor unit of the air-conditioning apparatus according to 12, 13, or 14. 16. The air conditioner according to claim 1, wherein each of the upper and lower wind direction plates is moved to the first mode position at the start of the heating operation.
15. The indoor unit of the air conditioner according to 2, 13, or 14. 17. An air conditioner further comprising a discriminating means for discriminating between a transition period and a stable period of the air conditioning operation, wherein each of the upper and lower wind direction plates is moved based on the discrimination result of the discriminating means. The indoor unit of the air conditioner according to claim 11, 12, 13, or 16. 18. The determination means includes: (a) a room temperature detector for detecting a room temperature; (b) a heat exchange temperature detector for detecting a temperature of a heat exchanger; and (c) a detection temperature of a blow-out temperature of the conditioned air. (D) It has at least one of the operation time timers for detecting the elapsed time from the start of the heating operation, and based on any one of the detection results or a combination of the respective detection results. The indoor unit of an air conditioner according to claim 17, wherein the transition period and the stable period are determined by using the following method. 19. An air conditioner further comprising a discriminating means for discriminating between a transition period and a stable period of an air conditioning operation of the air conditioner, wherein each of the upper and lower wind direction plates is moved based on the discrimination result of the discriminating means. An indoor unit of the air conditioner according to claim 15. 20. The discriminating means includes: (a) a room temperature detector for detecting a room temperature; (b) a heat exchange temperature detector for detecting a temperature of a heat exchanger; and (c) detecting a blow-out temperature of the conditioned air. (D) at least one of an operation switch timer for detecting an elapsed time since the operation of the operation switch, and any one of the detection results or a combination of the detection results. 20. The indoor unit of an air conditioner according to claim 19, wherein the transition period and the stable period are determined on the basis of: 21. Means for changing the flow rate of the conditioned air are further provided, wherein each of the upper and lower wind direction plates further includes a position where the first and second vertical wind direction plates face forward and downward. It is possible to stop at the heating standard mode position placed in the air conditioner, and the blowout flow rate when each of the upper and lower wind direction plates is in the first, second, or fourth mode position, and the upper and lower wind direction plates are in the heating standard mode. 15. The flow rate is larger than the blowout flow rate in the position.
An indoor unit of the air conditioner according to any one of the preceding claims. 22. An air outlet for blowing air-conditioned air into a room, and an upper and lower provided in the air outlet, the upper and lower being rotatable about a rotation axis for changing the upper and lower air blowing directions of the air-conditioned air. A wind direction plate, means for moving the turning position of the vertical wind direction plate,
In the cooling operation, the upper and lower wind direction plates can be stopped at a cooling standard mode position placed at a substantially horizontal position and a cooling diagonal upper blowing mode position placed at a position facing forward and upward. An indoor unit for an air conditioner, comprising: 23. An air outlet for blowing air-conditioned air into a room, and provided at the air outlet, the air-conditioning air being rotatable about a rotation axis for changing the upper and lower air blowing directions. A first vertical wind direction plate and a second vertical wind direction plate, the first vertical wind direction plate being located below and below the air outlet, and the second vertical wind direction plate being located in front of and above the air outlet. And means for independently moving the rotational position of each of the upper and lower wind direction plates. During the cooling operation, each of the upper and lower wind direction plates includes the first vertical wind direction plate and the second vertical wind direction. A cooling standard mode position in which the plates are placed in a substantially horizontal position, and a cooling diagonal upward blowing mode in which at least the second vertical wind direction plate has moved to a position facing forward and upward with respect to the cooling standard mode position. It can be stopped at each position. An indoor unit of an air conditioning apparatus according to. 24. (a) a room temperature detector for detecting room temperature; (b) a heat exchange temperature detector for detecting a heat exchanger temperature; and (c) a blowout temperature for detecting a blowout temperature of the conditioned air. Detector (d) At least one of a manually operable spray avoidance operation switch and operation detection means for detecting the presence or absence of operation of the spray avoidance operation switch, 24. The indoor unit of the air conditioner according to claim 23, wherein each of the upper and lower wind direction plates is moved from the cooling standard mode position to the cooling oblique upper blowing mode position based on a combination of the respective detection results. 25. The display mode according to claim 12, wherein each of the up-and-down wind direction plates can be set to each of said mode positions while the operation of the air conditioner is stopped.
23. The indoor unit of the air conditioner according to 4 or 22. 26. A remote control device for setting an operation state of the air conditioner, the remote control device having a display operation switch, and in the display mode, operating the display operation switch of the remote control device. 26. The indoor unit of an air conditioner according to claim 25, wherein each of the upper and lower wind direction plates is moved to each of the mode positions in response thereto. 27. An apparatus according to claim 27, further comprising a start-up determining means for determining whether or not the display mode is to be started, wherein an input of a display operation switch of said remote control device is validated based on a result of the determination by said start-up determining means. The indoor unit of the air conditioner according to claim 26, wherein 28. A display device according to claim 28, further comprising a main body operation switch, wherein said activation determining means determines whether or not to activate said exhibition mode based on a combination of operation contents of said main body operation switch and said exhibition operation switch of said remote control device. The indoor unit of an air conditioner according to claim 27, wherein the determination is performed. 29. A display device, further comprising: an air volume changing device for changing a flow rate of the conditioned air, wherein the display corresponds to each mode position of each of the upper and lower wind direction plates in the exhibition mode. The display contents of the means and the blowout flow rate of the conditioned air are set, and with the change of each mode position of each upper and lower wind direction plate, the display contents of the display means and the blowout flow rate of the conditioned air are set. The indoor unit of an air conditioner according to claim 25, wherein the display means and the air volume changing means are controlled so as to obtain the air conditioner.