JP3392644B2 - Air conditioner indoor unit - Google Patents

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 direction of air-conditioning air blown by rotating a vertical louver provided at an outlet of the indoor unit. Regarding control.

[0002]

2. Description of the Related Art As shown in FIGS. 23 and 24, an indoor unit of a conventional air conditioner has an outlet 201 that blows conditioned air into a room, and has a vertical wind direction that is rotatable about a rotation axis. Plates 210, 220, 230 are provided, and the vertical wind direction plate 2
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 are rotated as shown in FIG.
There is one that rotates 0 in an interlocking manner by driving a motor.

Then, as shown in FIGS. 23 and 24,
During the heating operation of the air conditioner, the vertical wind direction plate 21
By placing 0, 220, 230 in a substantially vertical position,
Air-conditioning air (warm air) is blown out just below the indoor unit or toward the rear wall surface to warm the lower part of the room (near the floor) to improve comfort when starting heating operation (so-called "so-called" It is known to be blown directly below.

[0004]

The indoor unit of the conventional air conditioner as described above has the following problems. First, in the above-described direct blow, in the indoor unit shown in FIG. 23, a relatively large gap 205 is formed between the outlet 201 and the upper end of the vertical airflow direction plate 210.
Due to the outflow of the conditioned air from the five parts, the amount of air blown directly below (air-conditioned air flow rate) decreases. Further, in the indoor unit shown in FIG. 24, the conditioned air flows out from the gap 206 between the air outlet 201 and the upper end of the vertical airflow direction plate 230, and the air outlet area in the direction directly below the air outlet 201 becomes large. In addition, the wind speed (air-conditioning air velocity) of the air blown just below is reduced.

Therefore, in any of the above indoor units,
It is not possible to obtain sufficient air volume and wind speed when blowing directly below.
Since the specific gravity of warm air is originally smaller than the specific gravity of indoor air, if sufficient air volume and wind speed cannot be obtained in a direct blow, warm air will rise before reaching the floor surface, and The purpose of warming and improving comfort will not be fully fulfilled.

Further, the indoor unit shown in FIG. 24 is configured such that the two upper and lower wind direction plates 220 and 230 are interlockedly rotated, and the wind direction during the heating operation is in addition to the above direct blowing,
It is limited to either the front lower direction or the horizontal front direction.

Next, the two upper and lower wind direction plates are independently rotatable, and 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 divided into two directions. Even in an indoor unit that is capable of blowing air, conventionally, the blowing direction of the mainstream is changed by rotating at least the vertical wind direction plate on the mainstream side.

In this case, in order to finely change the blowing direction of the mainstream, it is necessary to finely position at least the rotational position of the vertical wind direction plate on the mainstream side. For example, in order to set the blowing direction of the mainstream slightly downward from the direction directly below, the vertical wind direction plate on the mainstream side must be positioned slightly forward and downward from the vertical position. In order to achieve such fine positioning, it is necessary to increase the rotational resolution of the motor that drives the vertical airflow direction vane, which requires an expensive motor or speed reduction mechanism and a motor control corresponding to it.

Next, in the conventional indoor unit, the blowing direction at the time of heating operation is limited to any one of the above direct blowing, horizontal front, and front and lower blowing directly toward the living area. If you change the wind direction from the blowing direction of
Suddenly the wind hits the resident directly, and the resident may feel uncomfortable due to the feeling of ventilation or cold wind.

Further, in the conventional indoor unit, the rotating position of the vertical airflow direction plate is fixed to a substantially horizontal position so that the airflow direction is horizontally forward during the cooling operation. In this case, if the air volume is reduced or the temperature of the conditioned air becomes relatively lower than room temperature, the conditioned air may drop due to its large specific gravity and blow directly onto the living area. In such a case, even if the occupant is directly hit by the conditioned air flow, there is no discomfort such as a cold wind during heating operation for a short time, but a long time feels cold or too cold, resulting in comfort. Is not preferable.

The present invention has been made in consideration of the above points. Firstly, the resident is not exposed to a strong wind,
The purpose is to achieve warming without the feeling of cold air and to make the room temperature uniform.

Secondly, it is an object of the present invention to prevent a decrease in heating operation efficiency due to a decrease in the flow rate of the blown air depending on the position of each vertical wind direction plate.

[0013]

[0014]

A first means is an air outlet for blowing out conditioned air into a room, and a blower outlet provided at this air outlet for changing the upward and downward blowing directions of the conditioned air, respectively. A first vertical airflow direction plate and a second vertical airflow direction plate that are rotatable around a moving axis, and are a first vertical airflow direction plate located on the lower rear side of the air outlet and an upper front of the air outlet. A second vertical airflow direction plate located on the side, and means for independently moving the rotational position of each vertical airflow direction plate, wherein each vertical airflow direction plate is substantially the same as the first vertical airflow direction plate. A first mode position, which is placed in a vertical position, in which the second vertical wind direction plate closes the front upper side of the air outlet, and a position in which the first vertical wind direction plate is substantially vertical. Therefore, the second vertical wind direction plate is located at a position between a substantially horizontal position and a position facing the front lower side. A second mode position, a third mode position in which both the first vertical wind direction plate and the second vertical wind direction plate are placed in a substantially horizontal position, and the first vertical wind direction plate faces forward and downward. , And a fourth mode position in which the second vertical wind direction plate is placed in a position facing the upper front, respectively, and during the heating operation, each vertical wind direction plate moves from the first mode position, The indoor unit of the air conditioner, which is sequentially moved to the third mode position, the fourth mode position, and the second mode position.

According to the first means, the blowing direction is directly downward when the respective vertical wind direction plates are in the first mode position, and the blowing direction is the first vertical wind direction plate when the second mode position is in the second mode position. A vertically divided flow state is formed which is divided into two directions, that is, a direction slightly closer to the front than directly below and the front by the second vertical airflow direction plate. Next, when each vertical wind direction plate is in the third mode position, the blowing direction is horizontal front. Further, when in the fourth mode position, the blowing direction is divided into a front lower direction by the first vertical wind direction plate and a front upper direction by the second vertical wind direction plate.
The hot air blown upward in the front direction by the second vertical wind direction plate is sucked again from the suction port and reheated, and the high temperature blow-out state that raises the temperature of the warm air downward in the front direction by the first vertical wind direction plate To form.

During the heating operation, first, the vertical airflow direction vanes are moved from the first mode position to the third mode position, so that the blowing direction changes from the direct downward direction to the horizontal forward direction, and the direct downward blowing is performed. The temperature can be increased in the interior direction of the room, where the temperature did not increase, without applying wind to the occupants. Next, by moving each vertical wind direction plate 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 warm air first hitting the occupant is increased, After that, the feeling of cool air to the occupants due to the downward blowing in the second mode position is alleviated.

According to a second means, in the first means, the second mode position is sequentially placed in a state in which the second vertical airflow direction plate is placed in a substantially horizontal position, and the second vertical airflow direction plate is moved forward. It is characterized in that it is placed in a position facing downward.

According to the second means, in the first means, the blowing direction of the first vertical airflow direction vane in the second mode position to the lower front side is sequentially changed to the front side, and
It can be changed to a vertical split state. As a result, the entire room can be heated while gradually increasing the wind toward the occupants, and the entire room can be warmed up without giving the occupants a cold sensation.

The third means is the first or second means, further comprising an operation switch that can be manually operated, and when the operation switch is operated during the heating operation, each of the vertical airflow direction vanes has the first or second airflow direction. It is characterized by being moved to the mode position.

According to this third means, the first or second
In this means, each vertical wind direction plate can be arbitrarily moved to the first mode position during the heating operation by manually operating the operation switch.

A fourth means is characterized in that, in the first, second or third means, each vertical wind direction plate is moved to the first mode position when the heating operation is started.

According to the fourth means, in the first, second or third means, it is possible to always heat the vertical wind direction plate from the state in which it has moved to the first mode position.

The fifth means is provided with an outlet for blowing the conditioned air into the room, and is provided at this outlet, and is rotated about a rotation axis to change the upward and downward blowing directions of the conditioned air. A first vertical airflow direction vane and a second vertical airflow direction vane which are freely positioned, and are located on the lower rear side of the air outlet.
Second upper and lower wind direction plate and a front upper side of the air outlet
Of the vertical wind direction plate, means for independently moving the rotational position of each vertical wind direction plate, and means for changing the blowout flow rate of the conditioned air, each vertical wind direction plate, A first mode wind position in which the first vertical wind direction plate is placed at a substantially vertical position, and the second vertical wind direction plate is placed in a position that closes the front upper side of the air outlet, and the first vertical wind direction direction. A second mode position in which a plate is placed in a substantially vertical position, and the second vertical wind direction plate is placed between a position in which the second vertical wind direction plate is directed from the substantially horizontal position to the front downward direction; and the first vertical wind direction plate And the second vertical wind direction plate can both be stopped at the heating standard mode position, which is placed in a position facing the front lower direction, and during the heating operation, each vertical wind direction plate moves from the first mode position. While moving to the second mode position in sequence, each vertical wind direction plate The blowing flow rate when in the first or the second mode position, a indoor unit of the blowing air conditioner according to claim larger that than the flow rate when the horizontal flaps are in said heating standard mode position.

According to the fifth means, when the vertical airflow direction vanes are in the first or second mode position, the conditioned air blowing resistance by the vertical airflow vanes is higher than that in the heating standard mode position. It becomes large and the blowoff flow rate tends to decrease. Therefore, by setting the blowout flow rate in the former case to be larger than the blowout flow rate in the latter case, it is possible to prevent a decrease in heating operation efficiency due to a decrease in the blowout flow rate.

A sixth means is the first or second means, further comprising means for changing the blowout flow rate of the conditioned air, and each vertical wind direction plate further includes the first vertical wind direction plate and the first vertical wind direction plate. It is possible to stop at the heating standard mode position in which both the up and down wind direction plates are placed in a position facing the front lower direction, and the up and down wind direction plates are in the first, second, or fourth mode positions. The blowout flow rate is larger than the blowout flow rate when each of the vertical airflow direction vanes is in the heating standard mode position.

According to the sixth means, the first or second
In the above-mentioned means, each vertical wind direction plate is the first, second or fourth
In the mode position, compared to the heating standard mode position, the blowing resistance of the conditioned air by each of the vertical airflow direction vanes becomes large, and the blowout flow rate easily decreases. Therefore, by setting the blowout flow rate in the former case to be larger than the blowout flow rate in the latter case, it is possible to prevent a decrease in heating operation efficiency due to a decrease in the blowout flow rate.

[0027]

[0028]

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. 1 to 22 are views 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. In FIG. 1 and FIG. 2, an indoor unit I ′ of an air conditioner attached to a high place on a wall surface in a room is provided with a front panel 3 and a front lower part of the front panel 3, and conditioned air (cooling air, A blowout port 1 for blowing out dehumidified air, heating air, etc., and a blowout passage 2 for letting the conditioned air flow forward and downward toward the blowout port 1 are provided. The blowout passage 2 is sandwiched by a front wall 2a and a rear wall 2b in a cross section.

The air outlet 1 has rotating shafts C parallel to each other in order to change the upward and downward blowing directions of the conditioned air.
Two upper and lower wind direction plates (louvers) 60 and 70 are provided which are respectively rotatable around C1 and C2. In addition, reference numeral 9 in FIG. 1 denotes a left / right airflow direction plate that is provided on the upstream side of the up / down airflow direction plate 10 and that changes the left and right blowing directions of the 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. Then, inside the front panel 3, a main indoor heat exchange including a first heat exchanger 6a (see FIG. 3) corresponding to the suction port 4 and a second heat exchanger 6b corresponding to the suction port 5 is provided. A container 6 is provided. An auxiliary indoor heat exchanger (supercooling heat exchanger) 7 is arranged between the suction port 5 and the second heat exchanger 6b.

A cross-flow type indoor fan 8 is provided inside the main indoor heat exchanger 6 (between the first heat exchanger 6a and the second heat exchanger 6b). The indoor fan 8 is driven by a fan motor FM (see FIG. 5) so that the rotation speed is variable. Then, 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 suction port 4 flows to the blowout passage 2 through the first heat exchanger 6a,
The indoor air sucked from the suction port 5 flows into the blowout passage 2 through the auxiliary indoor heat exchanger 7 and the second heat exchanger 6a.
Then, the blowout flow rate of the conditioned air blown out from the blowout port 1 through the blowout passage 2 is changed by the change in the rotation speed of the indoor fan 8.

Next, referring to FIG. 4, each of the vertical airflow direction vanes 6 described above.
0 and 70 will be described in detail. As shown in FIG.
First located on the rear wall 2b side (lower rear side) of the outlet passage 2
The up-down airflow direction plate 60 has a substantially "V" -shaped cross-sectional shape that is bent toward the rotation axis C1 at a position facing the rotation axis C1. On the other hand, the second vertical airflow direction vane 70 located on the front wall 2a side (upper front side) of the blowout passage 2 has a substantially flat plate-shaped cross section. Further, on the one end 71 side of the second vertical airflow direction plate 70, a protrusion portion 74 protruding upward from the upper surface 70a thereof is formed. The vertical wind direction plates 60 and 70 are respectively connected to the vertical wind direction plate motors M1 and M.
2 (see FIG. 3).

In order to maintain the aesthetics of the indoor unit I ', when the air conditioner is stopped, the vertical wind direction plates 60 and 70 are moved to the stop position (S) shown in FIG. 4 by the vertical wind direction plate motors M1 and M2. 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. The lower surface 72 of the front panel 70 and the bottom surface 3b of the front panel 3 are substantially connected to each other and are located above the virtual surface S '.

In the outlet passage 2, the vertical wind direction plates 60, 70 are provided.
A plate-shaped support member 65 is provided for supporting the shafts at their intermediate portions in the directions of the rotation axes C1 and C2. The support member 65 has a base portion 66 whose both ends are supported by the front wall 2a and the rear wall 2b, a support portion 67 extending from the substantial center of the base portion 66 to the front lower side, and the front wall 2 of the base portion 66.
A support portion 77 extending from the a side to the front lower side along the front wall 2a.
And have. In addition, the support portions 6 of the support member 65 are respectively provided on the rotary shafts C1 and C2 sides of the vertical wind direction plates 60 and 70, respectively.
Mounting plates 63 and 73 are provided corresponding to Nos. 7 and 77, and the tips of the mounting plates 63 and 73 and the supporting portions 6 of the supporting member 65 are provided.
The tips of 7, 77 are rotatably connected at the positions of the rotation shafts C1, C2, respectively.

The first vertical airflow direction plate 60 has one end 21 facing the upstream side of the conditioned air and the other end 22 facing the upstream side in a state substantially along the flow direction of the conditioned air in the outlet passage 2. It can rotate within a range of approximately 180 degrees between the facing state. On the other hand, the second vertical wind direction plate 70 is 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 conditioned air flow direction of the outlet passage 2. Thus, it can be rotated within a range of approximately 90 degrees. In this case, the second vertical wind direction plate 70 is rotatable only from the stop position (S) in the direction in which one end (upper end side) 71 thereof is directed downward. The support member 65 has a shape that does not interfere with the rotation of the vertical airflow direction vanes 60 and 70.

Next, as shown in FIGS. 5 and 6, the indoor unit I'transmits an infrared signal (remote control signal) for remotely controlling the rotation of the vertical wind direction plates 60, 70 (remote control device). Remote control device R. In addition, the indoor unit I '
The receiving unit 35 (see FIG. 2) that receives the remote control signal transmitted from the remote control device R, and the reception sound generating unit 36 that generates the reception sound in response to the reception of the remote control signal by the reception unit 35. have.

The indoor unit I'has a control section 37 and a vertical wind direction plate motor drive circuit 38 for driving the vertical wind direction plate motors M1 and M2. And the control unit 3
7 drives one of the vertical wind direction plate motors M1 and M2 via the vertical wind direction plate motor drive circuit 38 based on the remote control signal of the remote control device R received by the receiving unit 35, and outputs each vertical wind direction. The plates 60 and 70 are adapted to rotate independently of each other.

Here, the vertical wind direction plate motors M1 and M2 are
Each is composed of a stepping motor, and the control unit 37
According to the order of the energizing pulses and the number of energizing pulses to the corresponding stepping motors from the predetermined initial positions of the respective upper and lower airflow direction vanes 60, 70, it is possible to determine the current position of each vertical airflow vane 60, 70. It has become. That is, it is possible to determine whether the direction of rotation of the vertical airflow direction vanes 60 and 70 is clockwise or counterclockwise, depending on the direction of the energization pulse of each stepping motor, and the rotation angle in each direction can be determined based on the number of energization pulses. For example, assuming that the initial position is 0, the clockwise direction is +, the counterclockwise direction is −, and each pulse rotates by 0.5 ° (the resolution is “0.
5 ° / 1 pulse ”motor, each vertical wind direction plate 6 can be added and subtracted based on the rotation direction and the number of energizing pulses.
It can be recognized that 0, 70 is at a position moved in which direction and by what angle from the initial position. In addition, when determining the rotational position of each vertical wind direction plate 60, 70 using a normal AC motor or DC motor, a position detection sensor for detecting the rotational position of each vertical wind direction plate 60, 70 is used. It is necessary to provide each.

The indoor unit I'has the fan motor F
A fan motor drive circuit 39 for driving M,
The controller 37 controls the remote control device R received by the receiver 35.
Based on the remote control signal of the fan motor drive circuit 3
The rotation speed of the fan motor FM is controlled via 9 to change the blowout flow rate of the conditioned air by the rotation of the indoor fan 8 (see FIG. 1). In addition, the control unit 37
Corresponds to the reception of the remote control signal by the receiver 35,
A predetermined received sound is generated by the received sound generating means 36.

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.

Further, the controller 37 is connected to an emergency operation switch (main body side operation switch) b1 (see FIG. 2) which also serves as a filter reset switch and various display lamps D1 to D6. The various display lamps D1 to D6 are
As shown in FIG. 2, 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, referring to FIGS. 7 to 13, the relationship between the rotational positions of the vertical airflow direction vanes 60 and 70 and the blowing direction of the conditioned air during the heating operation of the air conditioner will be described. First, in the heating standard mode position of the vertical airflow direction vanes 60, 70 shown in FIG. 7A, both the first vertical airflow direction vane 60 and the second vertical airflow direction vane 70 are directed substantially forward and downward, and One end 61 side of the vertical airflow direction plate 60 is placed 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 indoor living area in the lower front.

Next, the vertical wind direction plate 60 shown in FIG.
In the first mode position (A) of 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 airflow direction plate 60 faces the upstream side of the conditioned air. In the first mode position (A), as shown in FIG. 8 (b), the conditioned air is blown downward from the outlet 1 to a position slightly rearward and is in a state of a downward blow, and the conditioned air flows along the wall surface. It flows toward the floor, forming a so-called floor heating state.

Next, the vertical wind direction plate 60 shown in FIG.
In the third mode position (B) of 70, the first vertical wind direction plate 60 is placed in a horizontal position, and the second vertical wind direction plate 70 is positioned.
And are placed in a position that is slightly lower than the horizontal (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. 9B, the conditioned air is blown horizontally 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 and 70, the first vertical wind direction plate 60 is placed in a position facing the front lower side, and the second vertical wind direction plate 70 is positioned in a position slightly facing the front upper direction from the horizontal. It is like this. 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 vertical airflow direction plate 60 and the second vertical airflow direction. It is divided into two directions by the wind direction plate 70, that is, a portion b blown upward and forward from the outlet 1. In this case, the conditioned air b blown upward 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
8A is placed in a substantially vertical position similar to the first mode position (A) shown in FIG. 8A, and the second vertical wind direction plate 70 is provided in the fourth vertical direction shown in FIG. It is placed at a position slightly more horizontal than the mode position (C). Also in this 4'mode position (C '), as shown in FIG.
As shown in FIG. 1 (b), the conditioned air is the first up / down air flow direction plate 6
The part a ′ blown out downward from the outlet 1 by 0
The second vertical airflow direction plate 70 divides the airflow port 1 from the air outlet 1 toward the front upper part b. Also in this case, the conditioned air b blown upward and forward 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 in 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 a horizontal position. There is. Also in this 4 "mode position (C"), FIG.
As shown in FIG. 2, a portion a ″ in which the conditioned air is blown forward and downward from the air outlet 1 by the first vertical airflow direction plate 60 and a portion a ″ that is blown forward and upward in the airflow direction by the second vertical airflow direction plate 70. In this case, the conditioned air b blown upward and upward flows from the blowout port 1 to the suction port 4 as well.
Form a partial short circuit.

Next, the vertical wind direction plate 6 shown in FIG.
In the 0, 70 second mode position (D), the first vertical wind direction plate 60 is placed in a substantially vertical position similar to the first mode position (A) shown in FIG. The upper and lower wind direction plates 70 are placed so as to face the lower front. In the second mode position (D), the conditioned air is blown by the first vertical wind direction plate 60 from the outlet 1 in a direction slightly to the front from directly below, and by the second vertical wind direction plate 70. The outlet 1 is divided into a portion d blown out slightly downward from the front.
In this case, as shown in FIG. 13 (b), the conditioned air c blown out in a direction slightly forward from below is flown toward the floor,
The conditioned air d blown out slightly downward from the front flows substantially horizontally in the room, forming a so-called vertical split state.

Next, referring to FIGS. 14 and 15, the relationship between the rotational positions of the vertical airflow direction vanes 60 and 70 and the blowing direction of the conditioned air during the cooling operation of the air conditioner will be described. First, the vertical wind direction plates 60, 70 shown in FIG.
In the cooling standard mode position of each of the vertical wind direction plates 60,
70 is placed at the same position as the third mode position (B) shown in FIG. 9 (a). Therefore, in this cooling standard mode position, as in the third mode position (B) shown in FIG. 9 (a), the conditioned air is blown from the outlet 1 toward the front upper part of the room. However, in the cooling standard mode position, as shown in FIG. 14B, unlike the case of the third mode position (B) during heating shown in FIG. 9B, the low-temperature conditioned air has a large specific gravity. Therefore, it falls and flows slightly downward.

Next, the vertical wind direction plate 6 shown in FIG.
At the cooling diagonal upper blowing mode position (E) of 0 and 70,
The first vertical wind direction plate 60 is placed at the same position as the third mode position (B) shown in FIG.
Is placed at the same position as the fourth mode position (C) shown in FIG. 9 (a). At this cooling diagonal upper blowing mode position, as shown in FIG. 15B, the conditioned air is blown obliquely upward from the outlet 1 in a direction slightly upward from the horizontal.

Next, referring to FIG. 16, the relationship between the rotational positions of the vertical airflow direction vanes 60 and 70 and the blowing direction of the conditioned air during the dehumidifying operation of the air conditioner will be described. FIG.
In the dehumidification mode position (F) of the vertical airflow direction vanes 60, 70 shown in FIG. 1, the first vertical airflow direction vane 60 is placed at a position closer to horizontal than the third mode position (B) shown in FIG. 9A,
The second vertical airflow direction vane 70 is arranged at the same position as the cooling diagonal upper blowing mode position (E) shown in FIG. At the dehumidifying mode position (F), the conditioned air is blown out upward from the outlet 1. In this case, the conditioned air blown to the upper front is the outlet 1
To the suction port 4, forming a so-called short circuit.

Next, the vertical wind direction plates 60, 70 described above
The relationship between each mode position and the flow rate of the conditioned air will be described. First, when the vertical wind direction plates 60 and 70 are in the heating standard mode position or the third mode position (B),
The flow rate of conditioned air is set to a predetermined heating normal air volume. Further, when the vertical airflow direction vanes 60 and 70 are in the first mode position (A), the second mode position (D), or the fourth to 4 ″ mode positions (C to C ″), the heating normal air volume is predetermined. It is set as "Heating normal air volume + 1 tap" which is larger by 1 tap.

Next, when the vertical airflow direction vanes 60, 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 airflow rate. When the upper and lower wind direction plates 60 and 70 are in the dehumidifying mode position (F), the "cooling normal airflow-1 tap" is smaller than the cooling normal airflow by a predetermined one tap.
And

Next, the operation of this embodiment having such a configuration will be described. According to this embodiment, first,
By placing the vertical wind direction plates 60 and 70 at the first mode position (A) shown in FIG. 8A, the second vertical wind direction plate 70 is
Since it is placed in a position that closes the upper front side of the air outlet,
Since there is no air-conditioning air leakage between the upper and lower airflow direction vanes 70 and the air outlets, and the second airflow direction vanes 70 significantly reduce the air outlet area, the first airflow direction plate 70 placed in a substantially vertical position is The wind speed of the air blown just below formed by the up-down airflow direction plate 60 increases.

Next, the vertical wind direction plates 60, 70 are shown in FIG.
(A) to FIG. 12 (a), by placing the fourth to fourth "mode positions (C to C"), the blowing direction during the heating operation is set to the front lower direction by the first vertical wind direction plate 60, It can be divided into two directions, that is, upper front by the second vertical wind direction plate 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 and is reheated, and is moved forward and downward by the first vertical wind direction plate 60. To form a high-temperature blow-out state that raises the temperature of the warm air. In addition, in this case, FIG.
As shown in (a) to FIG. 12 (a), each vertical wind direction plate 6
Since 0 and 70 are placed at positions such that their center lines are substantially orthogonal to each other, the first vertical wind direction plate 60 and the second vertical wind direction plate 7
It is possible to reduce the leakage of the conditioned air from between the zero side and the other end 72 side.

The upper and lower wind direction plates 60 and 70 are shown in FIG.
(A) to FIG. 12 (a), the fourth to fourth "mode positions (C to C") or the second mode position (D) shown in FIG.
In the case of being placed in the air conditioner, the first up / down airflow direction plate 60 blows out forward and downward to form a main flow (a thick arrow) having a large flow rate of the conditioned air, and the second up / down airflow direction plate 70 moves slightly downward from the front upper side or the front side. The blowout in the direction forms a tributary (thin arrow) having a small flow rate of the conditioned air. The blowout directions of the mainstream and the tributary mutually influence each other, but the blowout direction of the mainstream slightly changes with respect to the change in the blowout direction of the tributary.

As a result, FIG. 11 (a) and FIG.
As shown in FIGS. 13A and 13A, while the first vertical wind direction plate 60 is fixed at a substantially vertical position, the second vertical wind direction plate 70 is directed to the front lower side from the position facing the upper front direction. By setting at a plurality of positions between the position (4 'mode position to second mode position), the first vertical wind direction plate is changed in accordance with the change in the blowing direction of the tributary by the second vertical wind direction plate 70. 60
The blowing direction of the main flow due to can be changed in a plurality of directions from a direction slightly closer to the front than directly below to a lower front (see FIGS. 11B, 12B, and 13B). Further, in this case, since the change in the blowing direction of the mainstream is slight with respect to the change in the blowing direction of the tributary, a relatively large change in the rotational position of the second vertical wind direction plate 70 causes a change in the first vertical direction. The blowing direction of the mainstream by the wind direction plate 60 can be finely changed.

Specifically, FIG. 11B and FIG. 12B
As shown in FIG. 13 (b), at the 4'th mode position (C ') to the 4th "mode position (C") and the second mode position (D), the mainstream blowing direction angles α, α ₁ ，
α ₃ changes according to the relationship of α <α ₁ <α ₃ .

Next, the vertical wind direction plates 60 and 70 are shown in FIG.
When it is placed in the second mode position (D) shown in FIG.
As shown in FIG. 3 (b), the blowing direction during the heating operation is a direction c slightly forward of the first up / down airflow direction plate 60 and a direction d slightly forward of the second up / down airflow direction plate 70. It is possible to form an upper and lower shunt state divided into two directions. Further, the conditioned air d blown out slightly downward from the front by the second vertical wind direction plate 70 is a tributary with a small flow rate and is a warm air with a small specific gravity, and therefore flows substantially horizontally forward. . Because of this,
It is possible to warm the vicinity of the floor surface with warm air c directed slightly forward from below by the up / down airflow direction plate 60 and warm up the inside of the room with the warm airflow forward d by the second up / down air direction plate 70. Further, in this case, since the blowing direction of the conditioned air can be deflected upward by the protrusion portion 74 of the second vertical airflow direction plate 70, the rotational position of the second vertical airflow direction plate 70 is from substantially horizontal to the front lower direction. It is possible to form a stable vertical shunt state in a wide range up to. For example, as schematically shown in FIG. 17, when using the substantially flat second vertical wind direction plate 90 without the protrusions 74, in the state where the first vertical wind direction plate 80 is in the vertical position, Even if the second vertical wind direction plate 90 faces upward even slightly, the blowout by the second vertical wind direction plate 90 flows upward, resulting in the partial short circuit state (reference numeral i). Also,
If the second vertical wind direction plate 90 slightly faces downwards too much, the blowout by the second vertical wind direction plate 90 flows downward and joins with the downward flow by the first vertical wind direction plate 80, and the front lower direction. There is a one-way blowout (merging state) (see reference numeral iii).

Therefore, in this case, the vertical divergence state can be formed only in an extremely narrow range from the substantially vertical position of the second vertical wind direction plate 90 to a position facing a little lower front than the horizontal direction (reference numeral). ii). Further, the turning position of the second vertical airflow direction plate 90 capable of forming the vertical splitting state also depends on conditions such as the temperature and flow rate of the conditioned air to be blown out, and even if the vertical splitting state is formed once, these If the condition of is changed, the short circuit state or the merging state easily shifts. In addition, since the flow state stabilizes when the transition to the confluent state, in order to form the vertical split state again,
After returning the second vertical wind direction plate 90 to the position of the short circuit state once, it is necessary to perform extremely fine rotation control in which the second vertical wind direction plate 90 is gradually rotated forward and downward and stopped immediately before the position where the flow is merged. is there.

On the other hand, as shown schematically in FIG. 18, when the second vertical wind direction plate 70 having the projections 74 is used, the first vertical wind direction plate 80 is in the vertical position. In the above, the vertical diverting state (see reference numeral II) is formed in a considerably wide range from the position where the second vertical wind direction plate 70 is substantially horizontal (see reference numeral I) to the position facing the front lower direction (see reference numeral III). You can Therefore, even if the conditions such as the temperature and the flow rate of the conditioned air to be blown out are changed, it is possible to obtain a stable up-and-down branch state in which there is a low possibility of shifting to the short circuit state or the merging state.

Incidentally, instead of the second vertical airflow direction vane 70 of the present embodiment shown in FIG. 19A, FIGS.
Even when the second vertical airflow direction vanes 170 to 370 shown in (d) are used, the above-described stable vertical diversion state can be obtained. 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 side end 171 side portion is smaller than the radius of curvature r1 of 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 on the downstream side 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 protrusion 374 is formed on the upper surface 370a side at the downstream side end 371 side portion. ing. This protrusion 374
Is different from the protrusion 74 of the second vertical airflow direction plate 70 shown in FIG. 19A, the surface on the one end 371 side thereof is a substantially vertical surface.

Next, each of the vertical airflow direction vanes 60, 70 has the first mode position (A), the second mode position (D), or the fourth to fourth positions.
In the 4 "mode position (C to C"), the blowing resistance of the conditioned air by each of the vertical airflow direction vanes 60, 70 becomes larger than that in the heating standard mode position, so that the blowing flow rate easily decreases. However, since the blowout flow rate in the former case is larger than the blowout flow rate (heating normal airflow rate) in the latter case (heating normal airflow rate + 1 tap), it is possible to suppress a decrease in the blowout flow rate. As a result, the heat exchangers 6, 7 associated with the decrease in the blowout flow rate
It is possible to prevent a decrease in the amount of heat exchange of the above and a decrease in heating operation efficiency due to an increase in the heat exchanger temperature Tc.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS. 11, 12 and 13. The indoor unit according to the present embodiment is the same as the indoor unit according to the first embodiment, except that when the heating operation is performed, the vertical wind direction plates 60 and 70 are operated for a certain operating time.
After being held in 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 constant operation time,
By holding each of the vertical airflow direction vanes 60, 70 in the 4'mode position (C ') or the 4 "mode position (C"),
The upper and lower wind direction plates 60 are set so that the mainstream blows out slightly forward, and is heated without applying strong wind to the occupants, and then the second vertical wind direction plate 70 is moved to the second mode position (D). To move the main airflow direction of the first vertical airflow direction plate 60 forward and downward, thereby increasing the wind hitting the occupants. As a result, it is possible to prevent the resident from feeling uncomfortable due to the feeling of ventilation or cold wind without suddenly applying strong wind to the resident.

Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIGS. In the indoor unit of the present embodiment, in the indoor unit of the first embodiment, during the heating operation, the vertical wind direction plates 60 and 70 are set to the first mode position (A) shown in FIG.
Therefore, the second mode position (D) shown in FIG. 13 is sequentially moved.

According to the present embodiment, each vertical wind direction plate 60,
When 70 is in the first mode position, the blowing direction is a downward direction, and when it is in the second mode position, the blowing direction is slightly forward of the direction just below the direction of the first vertical wind direction plate 60 and the second vertical wind direction. The plate 70 forms a vertically divided flow state that is divided into two directions, the front direction and the front direction. Then, during the heating operation, the first vertical airflow 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 the direct downward direction to the vertical split state. For this reason, by shifting from the first direct downward blowing to the vertical diverting state after that, it is possible to perform warm heating without a feeling of cold wind without applying strong wind to the occupants, and to conditioned air in the vertical diverting state. Since it circulates throughout the room, the room temperature can be made uniform.

Fourth Embodiment Next, FIGS. 5, 6, 8, 11, 13, and 20.
A fourth embodiment of the present invention will be described with reference to FIG. The indoor unit of this embodiment is configured to perform 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 operating time timer for detecting an 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. It has a function as a determination means for determining the transitional period and the stable period of the air conditioning operation (heating operation in this case) of the air conditioner based on Tf. Then, the control unit 37 controls the movement of the turning position of each of the vertical airflow direction vanes 60 and 70 based on the discrimination result as the discrimination means.

Here, the transitional period of the heating operation means that the operation time ti is short, the room temperature Ta, or the heat exchanger temperature T.
c, or a state in which the heating temperature Tf is relatively low and the heating operation is not stable yet. If the conditioned air hits the occupants during such a transitional period, the occupants are likely to feel a cold wind. On the other hand, the stable period is a state in which the operation time ti has sufficiently passed, or the room temperature Ta, the heat exchanger temperature Tc, or the outlet temperature Tf becomes sufficiently high, and the heating operation is stable. Even if the air-conditioned air hits the resident, it is difficult for the resident to feel the cold wind.

Next, the flowchart of FIG. 20 will be described. In FIG. 20, first, when the heating operation of the air conditioner is started in step 100, the operation time timer ti is started (step 101), and the vertical airflow direction vanes 60 and 70 are moved to the first mode position (A). On the other hand, in step 100, the operation is not started and step 1
If it is not in heating operation at 03, step 11
If the operation stop command (operation stop signal from the remote control device R) is not received at 0, the operation process of the other mode (cooling operation mode or dehumidification operation mode) is performed (step 113), and the operation is stopped at step 110. If the instruction has been received, the operation stop processing is performed (step 112) after the vertical airflow direction vanes 60, 70 are moved to the stop position (S) (step 111).

Next, when the heating operation is being performed in step 103 and the operating time ti exceeds 10 minutes in step 104, the vertical airflow direction vanes 60 and 70 are moved from the first mode position (A) to the 4'th position. Move to mode position (C ').
After that, if the operating time ti has not yet exceeded 20 minutes in step 106, the blowout temperature Tf is detected (step 108), and if the blowout temperature Tf becomes higher than the predetermined reference blowout temperature Tfs in step 109, Vertical wind direction plate 6
0 and 70 are moved from the fourth mode position (C ') to the second mode position (D) (step 107). Further, in step 109, the blowout temperature Tf is the predetermined reference blowout temperature Tfs.
Before it becomes higher, the operating time ti is 2 in step 106.
Even when the time exceeds 0 minutes, the vertical airflow direction vanes 60 and 70 are moved from the 4'mode position (C ') to the second mode position (D) (step 107).

Next, the operation of this embodiment having such a configuration will be described. According to the present embodiment, first, from the start of the heating operation until the operation time ti has passed 10 minutes (so-called the first transition period), the vertical wind direction plates 60, 70 have moved to the first mode position (A). Therefore, since the conditioned air forms the above-mentioned blown state (see FIG. 8 (b)), it is possible to warm the floor surface in the room with almost no wind on the occupants. And the operating time ti is 1
From 0 minutes to 20 minutes (the second
During the transition period), the upper and lower wind direction plates 60 and 70 are moved to the 4'-mode position, (C '), and the conditioned air forms the high-temperature blowout state (see FIG. 11B). It is possible to raise the temperature of the warm air that first hits the person.

Thereafter, after the blowout temperature Tf becomes higher than the predetermined reference blowout temperature Tfs or the operating time ti has passed 20 minutes (stable period), the vertical airflow direction vanes 60, 70 are in the second mode position (D). ), And the conditioned air forms the above-mentioned vertical split state (see FIG. 13 (b)). Therefore, while the temperature of the conditioned air is sufficiently increased, the wind toward the occupant is increased, and The upper part of the room can be heated.

As described above, by moving the vertical airflow direction vanes 60 and 70 based on the result of discrimination between the transitional period and the stable period of the heating operation, the wind toward the occupants is gradually strengthened while the windward direction is gradually increased. It is possible to warm the entire room without giving the occupants a feeling of cool air.

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

Further, in step 105 of the flow chart of FIG. 20, the case where the vertical airflow direction vanes 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 FIGS. 5, 6, 8, 8, 9, 10, 13 and 21. The indoor unit of this embodiment is configured to perform the operation control as shown in the flowchart of FIG. 21 in the indoor unit of the first embodiment. Further, as a premise, the remote controller R shown in FIG. 6 has an airflow switch (operation switch) b2 for transmitting an airflow changing operation command signal (airflow signal). The control unit 37 shown in FIG. 5 has a function of an air flow switch timer (operation switch timer) for detecting an elapsed time (air flow switch time) t after receiving the air flow signal of the remote controller R, and Based on the elapsed time t and 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, the transition period of the air conditioning operation (heating operation in this case) of the air conditioner. It has a function as a discriminating means for discriminating between the stable period and the stable period. Then, the control unit 37
Controls the movement of the turning position of each of the vertical airflow direction vanes 60, 70 based on the discrimination result as the discrimination means, and changes the blowout flow rate of the conditioned air by the rotation of the indoor fan 8 (see FIG. 1). It is like this.

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 blowout temperature Tf is relatively low, It means that the heating operation is not stable yet,
When the occupants are exposed to the conditioned air during such a transition period, the occupants are likely to feel a cold wind. On the other hand, the stable period is
The operating time ti has passed sufficiently, or the room temperature Ta, the heat exchanger temperature Tc, or the blowout temperature Tf becomes sufficiently high,
The heating operation is in a stable state, and in such a stable period, even if the occupants are hit with the conditioned air, it is difficult for the occupants to feel a cold sensation.

Next, the flowchart of FIG. 21 will be described. At the start of the heating operation of the air conditioner, the vertical airflow direction vanes 60, 70 are in the heating standard mode position, and the air volume is set to the heating normal air volume. In FIG. 21, the air flow signal from the remote control device R is set during the heating operation. When it receives (step 120), the vertical airflow 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 air flow 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, in step 124, the elapsed time t is 2
If it exceeds 0 minutes, the vertical airflow direction vanes 60, 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). Then, in step 126, the elapsed time t is 30.
If it exceeds the minute, the room temperature Ta becomes equal to or higher than the reference temperature (Tsc−3) ° C. in step 127, and step 1
When the heat exchanger temperature Tc is less 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 flow rate is the normal heating air flow rate + 1 tap. (Step 129).

Thereafter, in step 130, the elapsed time t is 4
Even if it exceeds 0 minutes, the room temperature Ta is reached in step 131.
Is higher than the reference temperature (Tsc−1) ° C., the vertical airflow direction vanes 60, 70 are moved from the fourth mode position (C) to the second mode position (D). In addition, the above step 128
If the heat exchanger temperature Tc is equal to or higher than 35 ° C., the vertical airflow direction vanes 60 and 70 are moved from the third mode position (B) to the second mode position (D) (step 132).

Next, the operation of this embodiment having such a configuration will be described. According to the present embodiment, when an airflow signal is received from the remote control device R in a state where the vertical airflow direction vanes 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 (so-called the first transition period), the vertical wind direction plate 6
Since 0 and 70 have moved to the first mode position (A) and the conditioned air forms the above-mentioned blown state (see FIG. 8 (b)), the floor of the room can be hardly exposed to the occupants. You can heat the area near the surface.

Then, until the air flow switch time t passes 20 minutes to 30 minutes (in a so-called second transition period), the vertical airflow direction vanes 60, 70 are in the third mode position (B).
Since the conditioned air forms the above-mentioned horizontal blowing state (see FIG. 9 (b)), the temperature in the room interior direction, which did not rise in the direct downward blowing state, is blown to the occupants. You can raise it without hitting it.

Next, when the air flow switch time t has passed 30 minutes, the room temperature Ta is the predetermined reference temperature (Tsc-3).
Until the room temperature Ta reaches a predetermined reference temperature (Tsc−1) ° C. or more when the airflow switch time t has passed 40 minutes from the state in which the heat exchanger temperature Tc is less than 35 ° C. During the interval (so-called the third transition period), the vertical airflow direction vanes 60, 70 move to the fourth mode position (C), and the conditioned air forms a high-temperature blowout state (FIG. 10).
(See (b)), it is possible to raise the temperature of the warm air that first hits the occupants.

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

As described above, by moving the vertical airflow direction vanes 60 and 70 based on the result of discrimination between the transitional period and the stable period of the heating operation, the wind toward the occupants is gradually strengthened while the airflow toward the floor is increased. It is possible to warm the entire room without giving the occupants a feeling of cool air.

The case where the movement of the turning positions of the vertical airflow direction vanes 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 above. However, only one of the room temperature Ta and the heat exchanger temperature Tc may be used, and the blowout temperature Tf detected by the blowout temperature detector S3 may be used instead of the heat exchanger temperature Tc. Further, the movement of the turning position of each of the vertical airflow direction vanes 60, 70 is controlled based on the elapsed time t, the room temperature Ta, the heat exchanger temperature Tc, the blowout temperature Tf, or any combination thereof. May be. Specifically, for example, step 127 of the flowchart of FIG.
Either 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 airflow direction vanes 60, 70 are moved to the fourth mode position (C) has been described, but instead of the fourth mode position (C), A 4'mode position (C ') or a 4 "mode position (C") may be used.

Sixth Embodiment Next, a sixth embodiment of the present invention will be described with reference to FIGS. 5, 6, 14, and 15. The indoor unit of this embodiment is the same as the indoor unit of the first embodiment, but the remote control device R shown in FIG. 6 has a spray avoidance switch (spray avoidance operation switch) b3 for transmitting a spray avoidance command signal. ing. The control unit 37 illustrated in FIG. 5 has a function as an operation detection unit that detects whether or not the spray avoidance switch b3 is operated, and detects the operation of the spray avoidance switch b3 during the cooling operation (the spray from the remote controller R). When the avoidance command signal is received), the vertical airflow direction vanes 60 and 70 are moved from the cooling standard mode position to the cooling oblique upward blowing mode position (E).

Further, the controller 37 selects 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 blowout temperature Tf detected by the blowout temperature detector S3. , Or a combination of these,
When it is determined whether or not the conditioned air is directly blown to the living area, and when it is determined that the conditioned air is directly blown, the vertical airflow direction vanes 60 and 70 are moved from the cooling standard mode position to the cooling oblique upward blowing mode position (E ).

Next, the operation of this embodiment having such a configuration will be described. According to the present embodiment, during the cooling operation, the upper and lower sides are arbitrarily operated by the manual operation of the blowing avoidance operation switch or automatically based on the detected temperatures Ta, Tc, Tf of the temperature detectors S1 to S3. Wind vane 6
It is possible to move 0, 70 from the cooling standard mode position to the cooling diagonal upper blowing mode position. Then, when the vertical airflow direction vanes 60 and 70 are in the cooling standard mode position and the conditioned air drops and blows directly to the living area, the vertical airflow direction vanes 60 and 70 are diagonally above the cooling standard mode position. By moving the conditioned air to the blowing mode position to make the conditioned air obliquely upwardly blown, it is possible to avoid the state in which the conditioned air blows directly on the living area.

Seventh Embodiment Next, a seventh embodiment of the present invention will be described with reference to FIGS. 2, 5, 6, and 22. The indoor unit of this embodiment is similar to the indoor unit of the first embodiment shown in FIG.
The operation control including the demo mode (exhibition mode) is performed as shown in the flowchart of FIG. Further, as a premise, the remote control device R shown in FIG. 6 has an air flow switch (exhibition operation switch) b2 for transmitting an air flow change operation command signal (air flow signal). And
The control unit 37 shown in FIG. 5 has 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 side operation switch) b1 and a remote control device R. Number of airflow signals received m
It has a function of an airflow signal reception counter for counting. Further, the control unit 37 serves as a start determination unit for determining whether or not the demo mode can be started based on the operation of the emergency operation switch b1, the elapsed time tp from this operation, and the number m of reception of the airflow signal. It has the function of.

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, other operation processing other than the demo mode is performed (step 141). On the other hand, if the emergency operation switch b1 is operated in step 140, and if the first emergency operation switch b1 is not operated from the start of energization (inserting the power plug into the outlet) in step 142, the filter timer is operated in step 147. (Operation accumulated time timer) is reset and emergency operation (cooling / heating automatic operation with 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
Starts (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 exceeds 10 seconds (m ≧ 2) Only in demo mode (step 151-
154) is activated. On the other hand, if the operation of the emergency operation switch b1 is canceled before the emergency operation switch time tp exceeds 10 seconds (steps 145, 1).
46), or when the emergency operation switch time tp exceeds 10 seconds before the air flow switch b2 is operated more than once 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, the reception counter is first reset (m = 0) (step 151). Then, the demo mode (mod (m, 9)) according to the number of receptions of the air flow signal (the number of operations of the air flow switch b2) m is performed (steps 152 to 154). Where mod
(M, 9) means the remainder (0, 1, 2, ..., 8) of m ÷ 9, and the demo mode (mod (m, 9)) corresponds to modes 0 to 8 in Table 1, respectively. ing. Therefore, the demo mode returns to the mode 0 every time the number of reception of the airflow signal becomes a multiple of 9.

Then, as shown in Table 1, in each of the demo modes 0 to 8, the vertical airflow direction vanes 60, 70 are moved to the respective mode positions (despite the actual operation of the air conditioner itself being stopped). And the display lamps D1, D2, D corresponding to the change of each mode position of the vertical wind direction plates 60, 70.
The display (5, D6) (ON, OFF) and the blowout flow rate of the conditioned air due to the change in the fan rotation speed are changed. In this demo mode, "abnormality display (for example, blinking of the operation lamp D5)" that may be performed in a normal operation mode other than the demo mode is not performed, and other remote control signals from the remote control device R are not sent. There is no reception. The demo mode is released when power is turned on (the power plug is removed from the outlet).

[0101]

[Table 1] Next, the operation of the present embodiment having such a configuration will be described. According to the present embodiment, in the normal operation mode other than the demo mode, even if an attempt is made to demonstrate the operation of the indoor unit during the exhibition at the store, an error is displayed or in the heating mode (the heat exchanger temperature is low. Even if it is not possible to perform a sufficient demonstration due to the indoor fan not operating (due to the operation of the cold air blowout prevention control), by activating the demo mode, an effective demonstration of the operation of the indoor unit can be achieved. It can be carried out. Further, the display lamps D1, D2, and D2 correspond to the change of the mode positions of the up and down wind direction plates 60 and 70.
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, whether or not the exhibition mode can be started is determined based on the combination of the operation contents of the air flow switch (exhibition operation switch) b2 of the remote control device R and the emergency operation switch (main body operation switch) b1. Start it up,
It can be turned off. Further, after the demo mode is activated, the number of times the airflow switch b2 of the remote controller R is operated (the number of times the airflow signal is received) m is sequentially set in Table 1.
The demo modes 0 to 8 can be switched as shown in FIG.

[0103]

According to the first aspect of the present invention, during the heating operation, first, the vertical airflow direction vanes are moved from the first mode position to the third mode position so that the blowing direction is horizontal from directly below. It is possible to raise the temperature in the interior direction of the room, which has changed to the front and has not risen in the blowout downward, without applying wind to the occupants. Next, by moving each vertical wind direction plate 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 warm air first hitting the occupant is increased, After that, the feeling of cool air to the occupants due to the downward blowing in the second mode position is alleviated. Therefore, it is possible to perform warm heating without a feeling of cold wind without applying strong wind to the occupants, and it is possible to achieve uniform room temperature.

According to the fifth aspect of the present invention, when each vertical wind direction plate is in the first or second mode position, the conditioned air blowing resistance by each vertical wind direction plate is higher than that in the heating standard mode position. Becomes larger, and the flow rate of blowout tends to decrease. Therefore, by making the flow rate in the former case larger than the flow rate in the latter case,
It is possible to prevent a decrease in heating operation efficiency due to a decrease in blowout flow rate. That is, it is possible to prevent a decrease in heating operation efficiency due to a decrease in the blowout flow rate depending on the position of each vertical wind direction plate.

[0105]

[Brief description of 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 a perspective view showing the appearance of the indoor unit shown in FIG. 1 in an enlarged manner 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 a blowout port portion of the indoor unit shown in FIG. 1 in a state where a vertical wind direction plate is 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.

7 (a) is a partial cross-sectional view showing a state where the vertical airflow direction vanes are in the heating standard mode position of the indoor unit shown in FIG.
(B) is a schematic diagram which shows the blowing range of the conditioned air in the rotating position of the up-and-down airflow direction board of (a).

8A is a partial cross-sectional view showing a state where the vertical airflow direction vanes are in the first mode position (A) of the indoor unit shown in FIG. 4;
(B) is a schematic diagram which shows the blowing range of the conditioned air in the rotating position of the up-and-down airflow direction board of (a).

9A is a partial cross-sectional view showing a state where the vertical airflow direction vanes are in the third mode position (B) of the indoor unit shown in FIG. 4;
(B) is a schematic diagram which shows the blowing range of the conditioned air in the rotating position of the up-and-down airflow direction board of (a).

10 (a) is a partial cross-sectional view showing a state in which the vertical wind direction plate of the indoor unit shown in FIG. 4 is in the fourth mode position (C), and FIG. 10 (b) is the vertical wind direction plate of FIG. FIG. 6 is a schematic diagram showing a blowout range of conditioned air at the rotation position of FIG.

11 (a) is a partial cross-sectional view showing a state in which the vertical airflow direction vanes are in the 4'mode position (C ') of the indoor unit shown in FIG. 4, and (b) is a top and bottom view of (a). The schematic diagram which shows the blowing range of the conditioned air in the rotation position of the wind direction plate.

12 (a) is a partial cross-sectional view showing a state where the vertical airflow direction vanes are in the 4 "mode position (C") of the indoor unit shown in FIG. 4, and (b) is a top and bottom view of (a). The schematic diagram which shows the blowing range of the conditioned air in the rotation position of the wind direction plate.

13 (a) is a partial cross-sectional view showing a state in which the vertical wind direction plate of the indoor unit shown in FIG. 4 is in the second mode position (D), and FIG. 13 (b) is the vertical wind direction plate of FIG. FIG. 6 is a schematic diagram showing a blowout range of conditioned air at the rotation position of FIG.

14 (a) is a partial cross-sectional view showing a state where the vertical airflow direction vanes are in the cooling standard mode position of the indoor unit shown in FIG.
(B) is a schematic diagram which shows the blowing range of the conditioned air in the rotating position of the up-and-down airflow direction board of (a).

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

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

FIG. 17 is a schematic diagram showing a range in which an up-and-down diversion state can be formed when a protrusion is not formed on the second up-and-down airflow direction plate.

FIG. 18 is a schematic diagram showing a range in which an up-and-down flow dividing state can be formed when a protrusion is formed on a second up-and-down airflow direction plate.

19 is a diagram showing a modification of the cross-sectional shape of the second vertical airflow direction vane of the indoor unit shown in FIG.

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 the sixth embodiment of the present invention.

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

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

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

[Explanation of symbols]

1 Blow-out port 2 Blow-out passage 3 Front panel 6 Indoor heat exchanger 8 Indoor fan 35 Receiver part 37 Control part 38 Vertical wind direction plate motor drive circuit 39 Fan motor drive circuit 60 First vertical wind direction plate (louver) 61, 71 Vertical wind direction One end 62, 72 of the plate and the other end 70 of the vertical wind direction plate 70 Second vertical wind direction plate (louver) 74, 274, 374 Protrusions C1, C2 Rotation axes D1 to D6 Display lamps (display means) I'Indoor unit M1, M2 Vertical wind direction plate motor R Remote control device S1 Room temperature detector S2 Heat exchanger temperature detector S3 Blowout temperature detector Ta Room temperature Tc Heat exchanger temperature Tf Blowout temperature b1 Emergency operation switch (main body side operation switch) b2 Airflow switch (airflow operation Switch, operation switch for exhibition) b3 Spray avoidance switch (operation switch for spray avoidance)

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuhiro Kageyama 336 Tatehara, Fuji City, Shizuoka Prefecture, 336 Toshiba Corporation Fuji Factory (72) Masao Isshiki 336 Tatehara, Fuji City, Shizuoka Prefecture, Toshiba Fuji Factory, Ltd. (72) 72) Inventor Kazuhiko Akiyama 336 Tatehara, Fuji City, Shizuoka Prefecture, Toshiba Corporation Fuji Factory (72) Inventor Makoto Watanabe 336 Tatehara, Fuji City, Shizuoka Prefecture Toshiba FCC Corporation (56) References Special Kaihei 7-91732 (JP, A) JP 5-52386 (JP, A) JP 5-60366 (JP, A) JP 4-124552 (JP, A) JP 8-303837 ( JP, A) JP 5-71796 (JP, A) JP 6-313607 (JP, A) JP 6-221646 (JP, A) JP 5-99478 (JP, A) JP Sho 63-163726 (JP, A) Actual Kaihei 7-2836 (JP U) JitsuHiraku Akira 62-88238 (JP, U) JitsuHiraku Akira 61-127317 (JP, U) JitsuHiraku Akira 63-104940 (JP, U) (58 ) investigated the field (Int.Cl. ^7, DB name ) F24F 1/00 401 F24F 11/02 102 F24F 13/14

Claims (6)

(57) [Claims] 1. A blowout port for blowing conditioned air into a room, and a blowout port provided at the blowout port, each of which is rotatable about a rotation axis so as to change a vertical blowing direction of the conditioned air. A first vertical wind direction plate and a second vertical wind direction plate, which are a first vertical wind direction plate located on the lower rear side of the outlet and a second vertical wind direction located on the front upper side of the outlet. A plate, and means for independently moving the rotational position of each vertical wind direction plate, each vertical wind direction plate having the first vertical wind direction plate placed in a substantially vertical position, and The second vertical wind direction plate is placed at a first mode position where the second vertical wind direction plate is placed at a position that closes the front upper side of the air outlet, and the first vertical wind direction plate is placed at a substantially vertical position. A second mode position which is placed in a position between a substantially horizontal position and a position facing the lower front, A third mode position in which both the first vertical wind direction plate and the second vertical wind direction plate are placed in substantially horizontal positions; and the first vertical wind direction plate facing forward and downward, and the second vertical wind direction plate. It is possible to stop at the fourth mode position in which the plate is placed in a position facing the front upper direction, and, during heating operation, each vertical wind direction plate moves from the first mode position to the third mode position, 4th mode position,
An indoor unit of an air conditioner, which is sequentially moved to the second mode position. 2. The second mode position is sequentially arranged from a state in which the second vertical wind direction plate is placed in a substantially horizontal position and a state in which the second vertical wind direction plate is placed in a front downward direction. The indoor unit of the air conditioner according to claim 1, wherein: 3. An operation switch capable of manual operation is further provided,
The indoor unit of the air conditioner according to claim 1 or 2, wherein each of the vertical airflow direction vanes is moved to the first mode position when the operation switch is operated during the heating operation. 4. The vertical wind direction plate is moved to the first mode position when the heating operation is started.
The indoor unit of the air conditioner according to 2 or 3. 5. An air outlet for blowing out conditioned air into a room, and a blower outlet provided at this outlet, which is rotatable about a rotation axis for changing the vertical blowing direction of the conditioned air. A first vertical wind direction plate and a second vertical wind direction plate, which are a first vertical wind direction plate located on the lower rear side of the outlet and a second vertical wind direction plate located on the upper front side of the outlet. And means for independently moving the rotational position of each vertical wind direction plate, and means for changing the blowout flow rate of the conditioned air, each vertical wind direction plate including the first vertical wind direction plate. A wind direction plate is placed in a substantially vertical position, the second vertical wind direction plate is placed in a position that closes the front upper side of the air outlet, and the first vertical wind direction plate is substantially vertical. The second vertical wind direction plate is placed in the position Stop in the second mode position, which is placed in the dark position up to the black position, and the heating standard mode position, in which both the first vertical wind direction plate and the second vertical wind direction plate face forward and downward. In the heating operation, each vertical wind direction plate is sequentially moved from the first mode position to the second mode position, and each vertical wind direction plate is in the first or second mode position. In this case, the blowout flow rate is larger than the blowout flow rate when the vertical airflow direction vanes are in the heating standard mode position. 6. A means for changing the flow rate of the conditioned air, wherein each vertical wind direction plate further has a position in which both the first vertical wind direction plate and the second vertical wind direction plate face forward and downward. It is possible to stop at the heating standard mode position which is placed in, and the blowout flow rate when each vertical wind direction plate is in the first, second, or fourth mode position is The indoor unit of the air conditioner according to claim 1 or 2, characterized in that the flow rate is larger than the flow rate when the air is in the position.