JPH0651727U - Air conditioner indoor unit - Google Patents

Abstract

(57) [Summary] [Purpose] In order to perform more comfortable air conditioning, the flow of air sent from the indoor unit to the room is switched according to operating conditions such as cooling operation and heating operation. [Configuration] FIG. 1 is a side view showing the inside of an indoor unit of an air conditioner. Air inlets 5, 6 and lower outlet 7
The air passage 9 connecting the air filter 9 and the heat exchanger 10
And a blower 11 for delivering the heat-exchanged air. At the outlet 7, there is a wind direction plate 12 for adjusting the wind direction. In order to achieve the purpose, an opening 13 is provided at the bottom of the housing 1, and
A blower is provided in an air passage 14 that connects the opening 13 and the outlet 7.
Provide 15 During the heating operation, the blower 15 is rotated clockwise to send a part of the warm air into the room through the opening 13 to warm the feet. During the cooling operation, the blower 15 is rotated counterclockwise to change the air flow in the air passage 14 upward, thereby pushing up the cold air flowing downward from the outlet 7 so that the cold air does not directly hit the body. To

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an indoor unit of an air conditioner, and more particularly, to a means for more comfortable air conditioning.

[0002]

[Prior art]

 A side view of the housing and the inside of the indoor unit of the air conditioner is shown in, for example, FIG. 3, and the housing 21 includes a main body 22 and a front cover 23 detachably attached to the main body 22. , And a front panel 24 attached to the front cover 23 so as to be openable and closable. Suction ports 25 and 26 for taking in the air in the room are provided in the upper part of the housing 1, and a blowout port 27 for sending the heat-exchanged air into the room is formed in the lower part of the front surface. An air filter 28, a heat exchanger 30, a blower (cross flow fan) 31 and the like are provided in an air passage 28 connecting these suction ports 25, 26 and the air outlet 27, and heat is exchanged by the heat exchanger 30. The air is blown into the room by the blower 31, but the wind direction into the room is adjusted up and down by the wind direction plate 32 provided at the air outlet 27.

[0003]

[Problems to be solved by the device]

 By the way, the indoor unit of recent years is not limited to the one shown in the figure, and the air outlet 27 is formed more downward so that warm air is blown to the feet in order to improve comfort during heating operation. With such a configuration, it is possible to warm the feet so that comfort during heating operation is improved, but cold air during cooling operation or dehumidifying operation tends to be discharged downwardly, so cool air does not reach the body. It may be hit directly, and if this condition lasts for a long time, comfort will be impaired. Therefore, in order to eliminate such a problem, the air outlet 27 is provided with a wind direction plate 32 that adjusts the direction of the wind up and down, but if the air outlet 27 itself is facing downward, Sufficient adjustment of the wind direction corresponding to the operating conditions is not possible with adjustment alone. Therefore, an object of the present invention is to provide an indoor unit for an air conditioner that solves these problems.

[0004]

[Means for Solving the Problems]

 The present invention has been made to solve the above problems, and an air filter, a heat exchanger, a heat exchanger, and a heat exchanger are provided in an air passage that connects a suction port at the upper part of the housing and an air outlet at the lower part of the front surface of the housing. In an indoor unit of an air conditioner, which is provided with a blower or the like for sending the exchanged air indoors, an opening is provided at the bottom of the casing, and a second air passage connecting the opening and the air outlet is provided. A second blower was installed, and the rotation direction of the second blower was switched according to the operating conditions such as cooling and heating.

[0005]

[Action]

 With the above configuration, the blowing direction of the heat-exchanged air can be changed over a wide range in accordance with operating states such as cooling operation and heating operation.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view showing the appearance of an indoor unit, and FIG. 2 is a side sectional view showing the inside of the indoor unit. A housing 1 is a main body 2 and a front cover 3 detachably attached to the main body 2. , A front panel 4 which is attached to the front of the front cover 3 in a freely openable and closable manner. The front panel 4 and the front cover 3 are provided with indoor air suction ports 5 and 6 in front of the front cover 3. An air outlet 7 is formed in the lower part of the direction. In the air passage 8 between the suction ports 5, 6 and the air outlet 7, a detachable air filter 9 that can be moved along the inner surface of the front cover 3 toward the main body 2, a heat exchanger 10, A blower (cross flow fan) 11 is arranged, and an air flow direction plate 12 for vertically adjusting the air blown into the room is provided at the outlet 7. An opening 13 is formed at the bottom of the front cover 3, and another blower 15 is provided in the air passage 14 between the opening 13 and the outlet 7.

The blower 15 can switch its rotation direction. For example, it is rotated clockwise in the drawing during a heating operation and counterclockwise during a cooling operation or a dehumidifying operation. The air that has undergone heat exchange by the heat exchanger 10 is sent to the outlet 7 by the blower 11, and the wind direction into the room is adjusted by the wind direction plate 12, but if the operating state at that time is heating operation. Since the blower 15 is controlled to rotate in the clockwise direction, a part of the warm air flowing toward the air outlet 7 is also discharged from the opening 13, and the warm air discharged from the opening 13 causes the floor (floor) You can feel the warmth and feel comfortable because you can warm the surface. Also, for example, if the operating state is cooling operation, the blower 15 is controlled to rotate counterclockwise, so the opening 13 serves as an inlet for indoor air, and the air flow in the air passage 14 is directed upward. Therefore, the cold air that tends to flow downward from the outlet 7 can be pushed up, and it is possible to prevent the cool air from directly hitting the body.

[0008]

[Effect of device]

 In the case of the indoor unit as described above, the blowing direction of the heat-exchanged air changes in accordance with the operating state such as the cooling operation and the heating operation, so that more comfortable air conditioning can be obtained at any time.

[Brief description of drawings]

FIG. 1 is an external perspective view of an indoor unit according to the present invention.

FIG. 2 is a side sectional view of an essential part of an indoor unit showing an embodiment of the present invention.

FIG. 3 is a side sectional view of a main part of an indoor unit showing a conventional example.

[Explanation of symbols]

 1 Case 2 Main Body 3 Front Cover 4 Front Panel 5 Suction Port 6 Suction Port 7 Blow-out Port 8 Air Passage 9 Air Filter 10 Heat Exchanger 11 Blower 12 Vane 13 Opening 14 Air Passage 15 Blower

Claims (3)

[Scope of utility model registration request] 1. An air filter, a heat exchanger, and a blower for sending the heat-exchanged air into a room are provided in an air passage that connects a suction port at an upper part of the housing and an outlet at a lower part of the front surface of the housing. In an indoor unit of an air conditioner that is provided, an opening is provided at the bottom of the housing, and a second blower is provided in a second air passage that connects the opening and the outlet. Indoor unit of air conditioner. 2. The indoor unit for an air conditioner according to claim 1, wherein the rotation direction of the second blower is switched according to the operating state such as cooling and heating. 3. The indoor unit for an air conditioner according to claim 1, wherein the opening is also used as a second outlet during heating operation, and the opening is used as a second intake during cooling operation.