JPH03194331A - Variable diffuser air-conditioner - Google Patents

Abstract

PURPOSE:To make it possible to blow off hot air downward and cooled air upward by installing a cross-flow type fan in a box-shaped body and a diffuser and an air intake port respectively up and down and switching over the diffusers while interlocking with the change in the direction of air supply. CONSTITUTION:A cross-flow type fan capable of changing the direction of air supply is housed in a box-shaped body. The cross flow fan 1 and an upper rear guide 2a and a lower rear guide 2b, which can open and close an air hole by opening and closing louvers 6a and 6b installed virtually at a position sym metric to the fan 1, are installed. An upper diffuser 7 is installed at the upper part of the box body and opened and closed with a louver 19 while a lower diffuser 20 is installed at the lower part of the box body and opened and closed with a louver 18. At the bottom of the box body is installed a lower intake port 8, while in the upper part of the fan is installed a heat exchanger 10. Therefore, this construction makes it possible to blow off cooled air from the upper diffuser 7 and hot air from the lower diffuser 20 by interlocking and opening and closing the respective louvers 17, 19, 6a, 6b and 18.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is an air conditioner that uses a cross-blow type blower that can change the direction of air blowing, so that cold air is blown out from above and warm air is blown out from below. It is related to.

(Prior Art) FIG. 8 is a schematic cross-sectional view of an example of a conventional air conditioner using a cross-flow type blower. A cross-flow fan is provided at the bottom of the space of the box surrounded by the front panel 4 and the back panel 5, and a suction port 2 is opened at the bottom of the front panel 4 opposite to this. A filter 6 is attached to the.

A casing 14 is provided along the inner surface of the back panel 5 from below the suction unit 2 to behind the cross flow unit 7. A tongue portion 11 is provided above the suction port 12, and the upper side of this tongue portion 11 can also be used as a dew pan. Tongue! Heat exchanger by the upper surface of the violet and the upper end of the casing I4! 0 is supported. An air outlet 13 is opened above the space of the box surrounded by the front panel 4 and the back panel 6.

During cooling operation, rotate the cross flow fan l in the direction of the arrow to open the suction port! Indoor air is sucked in from the casing 1, and after the air is filtered by the filter 16,
4, is cooled by the heat exchanger IO, and cooled a is blown out from the outlet 1B. Arrows indicate air paths. During cooling, a cold medium such as evaporated Freon gas flows inside the heat exchanger 10.

On the other hand, during heating operation, the air inlet! Indoor air is sucked in from 2, and hot air is blown out from outlet +8 through the same path as in the previous case, but at this time, inside the heat exchanger 10, there is a hot medium such as compressed preon gas. is flowing.

As described above, the air flow path is the same in both cases of air conditioning and heating, and air is sucked in from below and blown out from above.

(Problem to be solved by the invention) Conventional air conditioners have the structure described above, so when cooling, cold air is blown out from the top, making it possible to comfortably cool the air conditioner, but when heating, the air conditioner can cool the air comfortably. Since the wind blows from the top, the temperature in the upper part of the room tends to rise, causing uneven temperature distribution in the vertical direction in the room, making it impossible to comfortably heat the room.

(Means for solving the problem) A cross-flow type blower that can change the air blowing direction by opening and closing a pair of rear guide air holes is installed inside the box, and an inlet and an outlet are provided at the top of the box. An inlet and an outlet were also provided in the lower part of the body, and switching between these inlets and outlets was linked to changes in the direction of air blowing, and a heat exchanger was installed in the path through which the air from the cross-flow blower flows.

(Function) Since the present invention has the above-described structure, cold air can be blown out from above during cooling, and warm air can be blown out from below during heating.

(Embodiment) FIG. 1 is a schematic sectional view of an embodiment of the present invention, showing a state in which it is used for heating. Inside the box formed by the front panel 4 and the back panel 5, a close flow type blower whose blowing direction can be changed is housed. This is a cross 70-fan that always rotates in the direction of the arrow! A 6m looper is installed approximately symmetrically to this.
, 6b to open and close the air holes, and an upper rear guide 2a and a lower rear guide 2b.

One end of the upper rear guide 2a is fixed to the upper surface of the lower tongue part 8b provided inside the front panel 4, and the lower rear guide 2b
One end is fixed to the lower WJ of the upper tongue portion 81m provided inside the back panel 5, and the tongue portions 8m and 8b are respectively fixed.
The distance between the tip of the cross-flow fan and the opposing portion of the cross-flow fan ■ is the narrowest, and the distance becomes wider as it goes outward. Such a cross-flow type blower that can change the air blowing direction is explained in detail in Japanese Patent Application No. 184744/1988 filed by the present applicant on June 1, 1988, so its explanation will be omitted in this application. .

An upper blow-off lower is provided in the upper part of the box body, and is opened and closed by a lower blow-off looper 17, and an upper suction port 9 provided in parallel with this lower blow-off lower is opened and closed by an upper suction port looper 19. A lower air outlet 20 is provided at the bottom of the box, and is opened and closed by a lower air outlet looper 18. One wall surface of the lower air outlet 20 is constituted by one end of the lower rear guide 2b, and a lower suction port 8 is formed between the lower surface and the bottom of the container. Inside the upper suction port 9 and the lower suction port 8, fillers 21 and 16 are provided, respectively. A heat exchanger IO is provided in the upper part of the cross-flow type blower, the upper end of which is supported by the inner surface of the front panel 4, the lower end of which is supported by the nine-point saucer 15 located above the upper tongue part 81, All air is forced to pass through the heat exchanger 10. When used for heating, as shown in FIG. 1, the upper blower looper 17 is closed, the upper blower lower is closed, and the upper suction opening looper 19 is opened to open the upper suction opening 9. In addition, the lower air outlet looper 18 is opened to open the lower air outlet 20. Upper rear guide 2aFi
The looper 61 is opened outward, and the lower rear guide 2b closes the looper 6b. These opening and closing operations are performed in conjunction with each other by appropriate means. They can be easily interlocked mechanically or electrically. A hot medium is circulated through the heat exchanger 10.

In this state, when the cross flow fan 1 is rotated in the direction of the arrow in the figure, air flows downward from the direction E as shown by the arrow. Therefore, the air sucked in from the end suction port 9 and filtered by the filter 21 is warmed by the heat exchanger tOVc, and is blown out from the lower air outlet 20 along the lower rear guide 2b.

FIG. 2 shows a state in which the upper air outlet looper 17 is opened, the upper air outlet lower is opened, and the upper air inlet looper 1 is used for cooling.
9 to close the upper suction port 9.

The lower blower looper 18 is closed and the lower blower outlet 20 is closed. Close the looper 6a of the upper rear guide 2a and open the looper 6b of the lower rear guide 2b outward.

These opening and closing operations are also performed in conjunction with each other in the same way as in the case described above.

A cold medium is circulated through the heat exchanger 10.

When the cross 70-fan 7 is rotated in the direction of the arrow in this state, air flows from the bottom to the top as shown by the arrow. Therefore, the air sucked in from the lower suction port 8 is filtered by the filter 16, passes through the air hole in the gap of the looper 6b of the lower rear guide 2b, is cooled by the heat exchanger 10, and is blown out from the upper blowing lower.

In the above description, an example was described in which a looper was used as a means for opening and closing the air path, but for example,
Any other mechanism such as a shutter or diaphragm can be used to open and close the air passage.

(Effects of the Invention) According to the present invention, the air conditioner can be cooled with only one crossflow 71 unit and without changing the rotation direction, by only operating the opening and closing of the air outlet and suction port in the opening/closing pot of the air hole of the rear guide. ,
Since you can select the outlet suitable for each type of heating, you can even out the temperature distribution in the room and make it comfortable. In addition, the size of the box body can be made the same size as when blowing out in only one direction, and the moving parts related to opening and closing of the air outlet and suction port can be added to the air hole pot of the rear guide. The device is simple because all you have to do is

[Brief explanation of drawings]

Fig. 1 is a schematic sectional view of one embodiment of the present invention in a heating state;
The figure is a schematic sectional view of the cooling state, and FIG. 8 is a schematic sectional view of a conventional example. l...Cross 70-fan, 2ho...Upper rear guide, 2b...Lower rear guide, 81...Upper tongue,
8b...Lower tongue, 4...Front panel, 5...Back panel, 6m. 6 b...Relationship 7...Top air outlet, 8...Lower suction port, 9...Partial suction port, O...Heat exchanger, 0...Lower air outlet Fig. 3

Claims (1)

[Claims] 1. A cross-flow type blower that can change the air blowing direction by opening and closing a pair of rear guide air holes provided inside the box, an air outlet and a suction port provided above and below the box, and the air blowing direction. A variable outlet air conditioner comprising means for switching the outlet so that cool air is blown out from above and warm air is blown out from below in response to a change in the air outlet, and a heat exchanger provided in an air path.