JP3294505B2 - Indoor unit of heat pump type air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indoor unit of a heat pump type air conditioner wherein the air heated by a heat exchanger and electric heaters is let out efficiently just downward from the central part of an air outlet toward a floor surface. SOLUTION: Electric heaters 5 are disposed in the rear central part of a heat exchanger 4 in an indoor unit and a plurality of horizontal air directing plates 8a to 8c of which angles of opening and closing are controlled in the vertical direction individually are disposed at an air outlet 3, while a plurality of vertical air directing plates 9 are disposed at positions inside the indoor unit back from the horizontal air directing plates. At the time when a heating operation is started, the horizontal air directing plate 8b positioned at the center is directed just downward, while the horizontal air directing plates 8a and 8c other than this are directed obliquely downward, and the vertical air directing plate 9a located on the left side of the central part out of the vertical air directing plates in a plurality is set at an angle oblique to the right, while the vertical air directing plate 9c located on the right side of the central part is set at an angle oblique to the left. Thereby the air heated by the heat exchanger 4 and the electric heaters 5 is led in the direction of the horizontal air directing plate 8b positioned at the center and let out downward into a room.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved indoor unit of a heat pump type air conditioner.

[0002]

2. Description of the Related Art FIGS. 7 and 8 show a conventional heat pump type air conditioner of this type. That is, this conventional air conditioner has a cross flow fan 6 provided in the main body 1.
The air sucked from the air inlet 3 of the decorative panel 2 on the front surface of the main body 1 based on the driving of the main body 1 is heated by the heat exchanger 4 in the main body 1 and, particularly, the central portion of the heat exchanger 4 in the lateral direction is heated. The passed air is further heated by an electric heater 5 disposed in the center of the heat exchanger behind the heat exchanger 4, and the high-temperature air heated by both the heat exchanger 4 and the electric heater 5 is heated. A and relatively low-temperature air B heated only by the heat exchanger A and the heat exchanger 4 are blown into the room from the air outlet 7 below the air inlet 3.

[0003] In particular, during a certain period of time at the start of the heating operation, the horizontal wind direction plate 8b located at the center of the air outlet 7 is directed downward by an angle control device (not shown), and the left and right horizontal wind direction plates 8a and 8c are inclined. By directing it downward, at the start of the heating operation, the high-temperature air A, which is blown out from the central portion of the air outlet 7 and has passed through both the heat exchanger 4 and the electric heater 5, is directed toward the floor directly below the air conditioner, Air outlet 7
The air B that has passed through only the heat exchanger 4 that is blown out from the left and right portions of the air conditioner is blown obliquely downward from the air conditioner.

[0004]

According to the above-mentioned conventional air conditioner, the high-temperature air A heated by both the heat exchanger and the electric heater at the start of the heating operation is supplied to the central horizontal air flow direction plate 8.
Since the air is blown out to the floor through b, the floor can be heated in a relatively early time. However, in the above configuration, the high-temperature air A heated by both the heat exchanger and the electric heater is used.
Is not only the horizontal wind direction plate 8b at the center but also the horizontal wind direction plate 8a,
8c, and the air B heated only by the heat exchanger also flows into the center, so that the temperature of the air flowing in the direction of the horizontal wind direction plate 8b decreases, and as a result, at the start of the heating operation. There was a problem that the effect of immediate heating of the floor could not be sufficiently expected.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an indoor unit of a heat pump type air conditioner that efficiently blows air heated by a heat exchanger and an electric heater from a central portion of an air outlet toward a floor surface. I do.

[0006]

Means for Solving the Problems To achieve the above object,
In the present invention, a heat pump type air conditioner is formed together with an outdoor unit including a compressor and the like. The heat pump type air conditioner includes an air outlet on the front surface and an air suction port located above the air outlet, and has an internal structure. An indoor unit comprising: a heat exchanger facing the air outlet; and a blower fan that guides air sucked from the air inlet through the heat exchanger to the air outlet and discharges the air into the room. An electric heater is disposed at a rear central portion of the heat exchanger in the direction of air flow in the indoor unit, and the opening and closing angles of the air outlets are independently controlled in the vertical direction. A room in which a plurality of horizontal wind panels are arranged in the horizontal direction and a plurality of vertical wind panels are laterally arranged at a position inside the indoor unit from these horizontal wind panels.
In unit, when in the electric heater is driven with the heat exchanger, one that obliquely downward the horizontal louvers otherwise with direct horizontal wind direction plate positioned on the inner central portion of the horizontal wind direction plate directly below direction Located in the central part
The first vertical wind direction facing a horizontal wind direction plate other than the horizontal wind direction plate
A second vertical plate facing the central horizontal wind direction plate of the plates;
A first vertical airflow direction plate on the left side of the wind direction plate diagonally right, and the
The first vertical wind panel on the right side of the second vertical wind panel is set at an angle to the diagonally left, and the other first vertical wind panels are angled to the left.
It is characterized by not being attached .

According to this configuration, during the heating operation,
The horizontal wind direction plate located at the central part is directed directly downward, the other horizontal wind direction plates are directed obliquely downward, and the first vertical wind direction plate on the left side of the inner central part of the vertical wind direction plate is directed diagonally right, Since the first vertical wind direction plate on the right side is set at an angle to the diagonally left, the air heated by the heat exchanger and the electric heater is forcibly guided in the direction of the horizontal wind direction plate located at the center. The air is blown out downward in the room to heat the floor. At this time, the first vertical angled
Heat exchanger by direct wind direction plate and opposite horizontal direction plate
Only at the heated air according to the set angle
It is blown diagonally downward toward the center. Also set the angle
First vertical wind direction plate and horizontal wind facing it
Air heated only by the heat exchanger by the facing plate
It is blown diagonally downward.

[0008]

[0009]

[0010]

[0011]

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an indoor unit of a heat pump type air conditioner according to the present invention will be described with reference to the drawings. FIGS. 1, 2 and 3 are an external perspective view, a side sectional view and a main part side sectional view showing an embodiment of an indoor unit of a heat pump type air conditioner according to the present invention. Parts are given the same reference numerals.

Therefore, in these figures, 1 is the main body,
2 is a decorative board, 3 is an air inlet, 4 is a heat exchanger, 5 is an electric heater, 6 is a cross flow fan, 7 is an air outlet, 8
Reference numerals "a" to "8c" denote horizontal wind direction plates in which the opening and closing angles in the vertical direction are independently angle-controlled by an angle control device such as a motor (not shown). 6, the air sucked from the air inlet 3 of the decorative panel 2 on the front surface of the main body 1 is heated by the heat exchanger 4, and the air that has passed through the lateral center of the heat exchanger 4 is The heat is further heated by an electric heater 5 disposed behind the heat exchanger 4 and at the center in the lateral direction of the heat exchanger, and exchanges heat with the high-temperature air A heated by both the heat exchanger 4 and the electric heater 5. The air B having a relatively low temperature, which has been warmed only by the vessel 4, is blown into the room from the air outlet 7 below the air inlet 3.

During a certain period of time at the start of the heating operation, a horizontal wind direction plate 8b located at the center of the air outlet 7 is particularly provided.
And the horizontal wind directional plates 8a and 8c on the left and right.
Obliquely downward, the high-temperature air A blown out from the central portion of the air outlet 7 and passing through both the heat exchanger 4 and the electric heater 5 is directed toward the floor surface directly below the air conditioner and the air blower. Heat exchanger 4 blown out from left and right parts of outlet 7
The air B that has passed only through the air conditioner is blown obliquely downward from the air conditioner.

In such a configuration, the characteristic feature of the present invention is that a plurality of vertical wind direction plates 9, 9, 9 are located at positions inside the main body 1 from the horizontal wind direction plates 8 a to 8 c as shown in FIG. 4.
.. Are arranged at equal intervals in the horizontal direction, and the vertical wind direction plates 9a, 9b on the left and right of the vertical wind direction plates 9b,. In that it is slightly inclined. These vertical wind direction boards are individually or individually controlled in angle by an angle control device (not shown) in block units.

The indoor unit of the heat pump type air conditioner according to the present invention is constructed as described above, and its operation will be described below with reference to FIG. When the air conditioner is set to the heating operation mode by the remote controller or the like (step 1), the operation of the compressor installed in the outdoor unit (not shown) is started, and the refrigerant circuit is switched to the heating operation state. Furthermore, the cross flow fan 6
Is started (step 2).

Immediately thereafter, the three horizontal wind direction plates 8a
8c are opened forward by the operation of the opening / closing angle control device (step 3), and the air heated into the main body 1 through the air inlet 3 through the heat exchanger 4 as the cross flow fan 6 is driven. Is blown obliquely downward from the air outlet 7 toward the room.

As described above, the heat exchanger 4 is
After the blowing of the warmed air is started, the floor surface temperature is detected by a radiation sensor or the like, and is compared with a predetermined set temperature (step 4). When it is determined that the floor surface temperature is lower than the set temperature, the electric heater 5 is turned on (step 5), and in conjunction with this, the opening / closing control device is driven so that the central horizontal wind direction plate 8b is directly below. While turning (step 6), the vertical wind direction boards 9a and 9c are tilted right and left, respectively (step 7).

As a result, the air Hot sucked in from the air suction port 3 and heated by the heat exchanger 4 and further heated by the electric heater 5 is turned by the vertical wind direction plates 9b... It proceeds to the direction, blown efficiently below the horizontal louvers 8b reaches the floor surface. At this time, the air Cool heated only by the heat exchanger 4 that does not pass through the electric heater 5
Is slightly advanced to the center by vertical wind direction plates 9a and 9c.
The road is bent and blown obliquely downward from the horizontal wind direction plates 8a and 8c. Remaining air Cool heated only by heat exchanger 4
The vertical direction of the wind panel 9 is not angled.
Forward and blow obliquely downward from the horizontal wind direction plates 8a and 8c.
Will be sent out.

The above and so on, the air Hot and Cool which is heated through each horizontal louvers 8a to 8c is A in FIG. 6,
As shown by B, the room is heated and the room is warmed. In the next step 8, the room temperature is compared with the set temperature. When the room temperature becomes higher than the set temperature, the energization of the electric heater 5 is turned off (step 10). ). In conjunction with this, the horizontal wind direction plates 8b are returned to the original forward direction (step 11), and the vertical wind direction plates 9a and 9c are returned to the original state (step 12).

[0021]

According to the present invention, the indoor unit of the heat pump type air conditioner according to the first aspect of the present invention includes a heat pump type air conditioner together with an outdoor unit including a compressor and the like. An air outlet and an air inlet positioned above the air outlet on the front surface, and a heat exchanger opposed to the air outlet and the air sucked from the air inlet inside. the air guided to the air outlet after passing through the heat exchanger, a room unit and an air blowing fan for release into the room, the heat exchanger in the direction of air flow in the indoor unit An electric heater is arranged at the rear center of the air blower, and a plurality of horizontal airflow direction boards whose opening and closing angles are independently controlled in the vertical direction are horizontally arranged in the air outlet. Room arranged a plurality of vertical airflow direction plate laterally inner position of the indoor unit from Luo horizontal louvers
In unit, when in the electric heater is driven with the heat exchanger, one that obliquely downward the horizontal louvers otherwise with direct horizontal wind direction plate positioned on the inner central portion of the horizontal wind direction plate directly below direction Located in the central part
The first vertical wind direction facing a horizontal wind direction plate other than the horizontal wind direction plate
A second vertical plate facing the central horizontal wind direction plate of the plates;
A first vertical airflow direction plate on the left side of the wind direction plate diagonally right, and the
The first vertical wind panel on the right side of the second vertical wind panel is set at an angle to the diagonally left, and the other first vertical wind panels are angled to the left.
It is a configuration that does not attach .

According to the present invention, during the heating operation,
The high-temperature air heated by the heat exchanger and the electric heater is forcibly guided in the direction of the horizontal wind direction plate located in the center and is blown downward toward the interior of the room, thereby heating the floor surface,
Moreover, the air heated only by the heat exchanger is connected to the heat exchanger.
Of the high-temperature air heated by both air heaters
Since the shape as hold down from around the high temperature air heated by both the heat exchanger and the electric heater is blown to the floor through the horizontal louvers efficiently central, effective heating of the floor is expected it can.

[0023]

[0024]

[0025]

[0026]

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an indoor unit of a heat pump type air conditioner of the present invention.

FIG. 2 is a side sectional view of an indoor unit of the heat pump type air conditioner of the present invention.

FIG. 3 is a side cross-sectional view of a main part of the indoor unit of the heat pump type air conditioner of the present invention when heating operation is started.

FIG. 4 is a plan cross-sectional view of a main part of the heat pump type air conditioner of the present invention when a heating operation of the indoor unit is started.

FIG. 5 is a flowchart illustrating an operation of the indoor unit of the heat pump type air conditioner of the present invention during a heating operation.

FIG. 6 is a diagram showing a flow of air into a room during a heating operation of an indoor unit of the heat pump air conditioner of the present invention.

FIG. 7 is an external perspective view showing an indoor unit of a conventional heat pump type air conditioner.

FIG. 8 is a side sectional view of an indoor unit of a conventional heat pump type air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Decorative board 3 Air inlet 4 Heat exchanger 5 Electric heater 6 Cross flow fan 7 Outlet 8a Horizontal louver 8b Horizontal louver 8c Horizontal louver 9 Vertical louver

Claims (3)

(57) [Claims] A heat pump type air conditioner is formed together with an outdoor unit including a compressor and the like. The heat pump type air conditioner includes an air outlet on the front surface and an air suction port located above the air outlet. An indoor unit comprising: a heat exchanger facing the air outlet; and a blower fan that guides air sucked from the air inlet through the heat exchanger to the air outlet and discharges the air into the room. An electric heater is disposed at a rear central portion of the heat exchanger in the direction of air flow in the indoor unit, and the opening and closing angles of the air outlets are independently controlled in the vertical direction. A room in which a plurality of horizontal wind panels are arranged in the horizontal direction and a plurality of vertical wind panels are laterally arranged at a position inside the indoor unit from these horizontal wind panels.
In the unit, when the electric heater is driven together with a heat exchanger, the horizontal wind direction plate located at the center of the horizontal wind direction plate is directed downward and the other horizontal wind direction plates are obliquely downward. > while Ru-friendly, water other than the horizontal wind direction plate positioned above the central portion
A central portion of the first vertical wind direction plate facing the flat wind direction plate;
On the left side of the second vertical louvers facing the horizontal louvers
A first vertical airflow direction plate diagonally right, and the first vertical airflow direction plate and set the angle to slant the left to the right <br/> side of the second vertical airflow direction plate, its
An indoor unit for a heat pump type air conditioner , wherein the first vertical wind direction plate other than the first vertical wind direction plate is configured not to be angled . 2. The indoor unit of a heat pump type air conditioner according to claim 1, wherein the horizontal wind direction plate is located at the center of the air outlet and three at the left and right sides thereof. . 3. The electric heater is driven together with a heat exchanger.
Do not make an angle to the second vertical wind direction plate
3. The method according to claim 1, wherein
An indoor unit of the heat pump type air conditioner according to the above .