JPH0886506A - Air-conditioning machine - Google Patents

Abstract

PURPOSE: To provide an air-conditioning machine, capable of maintaining an outlet air speed upon heating operation as well as an outlet air direction upon cooling operation at the same time, simple in structure and prominent in the appearance thereof. CONSTITUTION: An air-conditioning machine is provided with a heat exchanger 3, a ventilating fan 4 and the like, arranged in an air passage connecting a suction port 2 to an outlet port 7, both of which are formed on a main body 1, and an up-and-down air direction plate 6 provided in the lower space of the ventilating casing 5 constituting the air outlet port 7. A movable plate 9, capable of being appeared from and hidden by the tip end of the ventilating casing 5, and a motor 9, synchronized with a motor 6a for driving the up-and- down air direction plate 6, are provided in the lower space of the ventilating casing 5. According to this method, the area of the outlet port 7 is reduced to maintain an air outlet speed higher than some range upon heating operation while the air passage is extended substantially to maintain the air outlet direction in horizontal direction upon cooling operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention particularly relates to an air which can maintain the blown-air velocity above a certain range regardless of the blown-air amount during the heating operation and can keep the blown-air direction as horizontal as possible during the cooling operation. Regarding the harmony machine.

[0002]

2. Description of the Related Art In a conventional air conditioner, Japanese Utility Model Publication No. 3-47165 is known as a device for maintaining a blown-out wind speed above a certain range regardless of the amount of blown-out air during heating operation. No. 3-47165 is shown in Fig. 3 (A) and (B).
As shown by, the movable plate 9 is attached to the downstream side of the blower casing 5 so as to be able to swing about the fulcrum 9a, and the link A10, the link B11, and the motor 8 serve as means for moving the movable plate 9. A drive device is provided.
Further, it has a blown air flow rate detection means (not shown), for example, a blower fan rotation speed detection means, and when the air flow rate reduction is detected by the detection means, the motor 8 operates to swing the movable plate 9, The outlet width A shown in FIG.
It is configured to decrease to the outlet width A ′ shown in (B). As the width of the outlet decreases in this way, the width in the depth direction of the figure does not change, and the area of the outlet decreases due to the change from Fig. 3 (A) to Fig. 3 (B). The speed is maintained or increased in a certain range, which is a convenient structure for allowing the hot air to reach the floor during the heating operation, and the temperature distribution during the rated operation is as shown in A of FIG. It was something. As a result, the action of the movable plate 9 makes it possible to maintain the blowing air velocity even when the blowing air amount is small, so that a small amount of air or high-temperature air can be sent to the floor surface, improving the heating feeling. I was able to plan. However, in the above configuration, since no consideration is given to the blowing air direction during the cooling operation, the temperature distribution is as shown in B of FIG. 4, and the blowing cold air does not reach the position away from the main body 1, and However, there is a problem that the temperature distribution of is deteriorated. Further, structurally, since the movable plate 9 is always exposed to the outside, there is a problem that the appearance is not good and the structure is complicated.

[0003]

SUMMARY OF THE INVENTION In view of the above problems, the present invention makes it possible to simultaneously maintain the blowout wind speed during heating operation and the blowout air direction during cooling operation, and to simplify the structure and improve the appearance. The purpose of the present invention is to provide a good air conditioner.

[0004]

In order to solve the above-mentioned problems, a heat exchanger, a blower fan, etc. are provided in an air passage connecting a suction port and a blowout port formed in a main body, and the blowout port is vertically moved. An air conditioner provided with a wind direction plate is characterized in that a movable plate which can be retracted from a tip end thereof is provided in a lower space of a blower casing which constitutes the blowout port. Further, a rack is formed on the lower surface of the movable plate, and a pinion that meshes with the rack is provided, and the pinion is linked to a drive device. Further, the driving device is a motor. Further, the driving device is driven in synchronization with the driving device for the vertical wind direction plate. Furthermore, the movable plate is slidably held by a guide.

[0005]

With the structure described above, during heating operation, the vertical wind direction plate is vertically changed by the drive device, and at the same time when the air flow rate is switched from "high / medium" to "low", the movable plate is also blown by the drive device. It projects outward from the lower end of the casing, the distance between the vertical wind direction plate and the lower end of the blower casing is narrowed, the area of the outlet is reduced to prevent the outlet wind speed from decreasing, and the outlet wind speed is maintained above a certain range. be able to. When the vertical wind direction plate is horizontally changed by the drive device during the cooling operation, the movable plate also protrudes outward from the lower end of the blower casing by the drive device in synchronization with it and becomes a shape along the lower part of the blower casing. The air passage can be substantially extended to maintain the blowing airflow direction in the horizontal direction.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, 1 is an indoor unit body of an air conditioner, 2 is a front cover detachably attached to the body 1 and a suction port provided on an upper surface of the body 1, and 3 is the body. 1
A heat exchanger provided inside the heat exchanger for exchanging heat with the air sucked from the suction port, a blower fan provided in the air passage for sending out the heat-exchanged air to an outlet described later, and a heat exchanger with the reference numeral 5 3 and a blower casing 5a constituting a blower outlet of an air passage formed on the back side of the blower fan 4 and the like, which will be described later, below the heat exchanger 3 and the blower casing 5
The stabilizers 5b provided to face each other are formed integrally with the blower casing 5 so as to slidably hold a part of a movable plate, which will be described later, so as to be capable of appearing and retracting outward from the blower casing 5. It is a guide. Reference numeral 6 denotes a vertical airflow direction plate provided at an air outlet 7 for blowing air toward the room, 6a denotes a motor for driving the vertical airflow direction plate 6, and 8 denotes a drive device for driving the vertical airflow direction plate 6 and a movable plate described later. As a motor provided at the lower part of the blower casing 5, a motor 9 is formed in the lower space of the blower casing 5 with a curved surface along the curved surface of the blower casing 5, and guided from the tip of the blower casing 5 to the guide 5b. A movable plate provided so as to be retractable to the outside, 10 is a rack formed on the lower rear surface of the movable plate 9, 11 is a pinion meshed with the rack 10, and the vertical wind direction plate 6 is driven by the motor 6a. The movable plate 9 is driven by the motor 8 in synchronization with the downward rotation, and the movable plate 9 projects from the tip of the blower casing 5. Further, it has a blown air flow rate detection means (not shown), for example, a blower fan rotation speed detection means, and when the air flow rate reduction is detected by the detection means, the motor 8 is activated to move the movable plate 9 to the blower casing 5. As shown in FIG. 1, the outlet width A can be reduced to the outlet width A ′ by projecting from the tip toward the outside in the substantially horizontal direction. Since the width does not change, the blowing speed is maintained within a certain range or increases even if the blowing air volume decreases. Further, since the movable plate 9 is projected outward from the tip of the blower casing 5 in a substantially horizontal direction, the air passage is substantially extended and the blowing air direction can be maintained in the horizontal direction. Has become.

With the above structure, when the vertical airflow direction plate 6 is vertically changed by the motor 8 during the heating operation, and at the same time the air flow rate is switched from "high / medium" to "low", the movable plate 9 is moved. Also protrudes outward from the lower end of the blower casing 5 by the motor 8, and the distance between the vertical airflow direction plate 6 and the lower end of the blower casing 5 is narrowed, and the area of the blowout port 7 is reduced to reduce the blowout wind speed. It becomes an air conditioner that can prevent and maintain the blown-off wind speed above a certain range.
Further, when the vertical airflow direction plate 6 is horizontally varied by the motor 8 during the cooling operation, the movable plate 9 is also protruded outward from the lower end of the airflow casing 5 by the motor 8 in synchronization with it. The air conditioner has a shape that extends along the lower portion of the casing 5 and substantially extends the air passage to maintain the blowing airflow direction in the horizontal direction. The movable plate 9
The motor 8 may be rotated in the reverse direction to withdraw.

[0008]

As described above, according to the present invention, since the movable plate is arranged in the lower space of the blower casing and can be projected and retracted from the tip of the blower casing, it is not exposed to the outside when not in use, and it has a good appearance. Become a harmony machine. Moreover, since the movable plate and the drive device for driving the movable plate are housed in the same space, the air conditioner is structurally simple.

[Brief description of drawings]

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

FIG. 2 is an enlarged view of a main part showing an embodiment according to the present invention.

FIG. 3 is a sectional view of an essential part showing an indoor unit of an air conditioner according to a conventional example, in which (A) shows a state before a movable plate swings,
(B) shows the state after the movable plate has swung.

FIG. 4 is an explanatory view of air temperature distribution according to a conventional example.

[Explanation of symbols]

 1 Indoor unit body 2 Suction port 3 Heat exchanger 4 Blower fan 5 Blower casing 5a Stabilizer 5b Guide 6 Vertical wind direction plate 6a Motor (drive device for vertical wind direction plate) 7 Air outlet 8 Motor (drive device for movable plate) 9 Movable plate 10 Rack 11 Pinion A, A'Outlet width

Claims (5)

[Claims] 1. An air conditioner in which a heat exchanger, a blower fan, etc. are provided in an air passage connecting a suction port and a blowout port formed in a main body, and a vertical wind direction plate is provided at the blowout port. An air conditioner characterized in that a movable plate which can be retracted from a tip end thereof is provided in a space below a blower casing which constitutes an air outlet. 2. The air conditioner according to claim 1, wherein a rack is formed on the lower surface of the movable plate, and a pinion that meshes with the rack is provided, and the pinion is linked to a drive device. 3. The air conditioner according to claim 2, wherein the drive device is a motor. 4. The air conditioner according to claim 2, wherein the drive device is driven in synchronization with the drive device for the vertical wind direction plate. 5. The air conditioner according to claim 1, wherein the movable plate is slidably held by a guide.