KR20040033358A - Ceiling Embedded Type Air Conditioner - Google Patents

Abstract

PURPOSE: An air conditioner to be buried to the ceiling is provided to variable divide a suction area of a suction hole according to relative rotation speeds of a pair of blowing fans disposed at both sides in a main body. CONSTITUTION: An air conditioner to be buried to the ceiling includes a suction area control plate(20a) mounted in a main body(10) to divide an area of a suction hole(12) variably in response to a difference of relative rotation speeds of first and second blowing fans(15a,15b). The suction area control plate is mounted to a rear wall(10a) of the main body at a rear end to be rotatably right and left, wherein a front end rotates right and left in the suction hole to divide the suction hole variably. In the suction hole, an air suction amount rate between the right side and the left side becomes variable, so that the air suction amounts is controllable according to the rotation speeds of the blowing fans mounted at each side. Air amounts discharged via first and second discharge holes(13a,13b) is controlled accordingly.

Description

Ceiling Embedded Air Conditioner {Ceiling Embedded Type Air Conditioner}

The present invention relates to an air conditioner, and more particularly, a ceiling embedded type having a suction area control plate for variably dividing the area of an intake port in accordance with a relative rotational speed of a pair of blower fans installed on the left and right sides inside the main body. It relates to an air conditioner.

In general, an air conditioner uses an endothermic action and an exothermic action caused by vaporization or liquefaction of a refrigerant circulating in a closed circuit in a refrigeration cycle in which a compressor, a condenser, a refrigerant expansion valve, and an evaporator are connected to each other by a refrigerant pipe to form a closed circuit. It is a device for cooling or heating the surroundings.

Such an air conditioner includes a compressor and a condenser, and is divided into an outdoor type installed outdoors, an evaporator, and a separate type configured by separating an indoor unit installed indoors, and an integrated type in which the above elements are installed in one housing. do. In addition, the separate type air conditioner is a stand type installed on the floor of the room for cooling or heating a large indoor space, and a wall-hung type mounted on the wall of the room for cooling or heating a small indoor space. And it is divided into the ceiling-mounted type that is installed and installed in the ceiling of the room.

The present invention relates to a ceiling-embedded air conditioner, and generally, an indoor unit of a ceiling-embedded air conditioner is installed with a suction port and a discharge port disposed on a ceiling and a main body embedded in a ceiling.

Figure 1 schematically shows the internal structure of the indoor unit of the conventional ceiling-mounted air conditioner. As shown in the drawing, a conventional ceiling-mounted air conditioner is coupled to a front surface of an open body 1 and a main body 1 which is open at the front and is embedded in the ceiling of the room, and is formed in a substantially flat plane with the ceiling. The front panel 2 is provided to form an exterior.

A suction port 3 is formed at the center of the front panel 2 to introduce air from the interior space into the main body 1, and both sides of the front panel 2 are configured to discharge heat-exchanged air into the interior space. Discharge ports 4a and 4b are formed, respectively.

The first heat exchanger 5a and the first blowing fan 6a for heat-exchanging the air sucked through the inlet port 3 and discharging them to the discharge ports 4a and 4b on the left and right sides of the main body 1, and The 2nd heat exchanger 5b and the 2nd blowing fan 6b are provided.

Therefore, when the first and second blower fans 6a and 6b are operated, air in the room is sucked into the main body 1 through the inlet port 3, and the first and second heat exchangers 5a ( After heat exchange via 5b), it is discharged into the room through the discharge ports 4a and 4b to comfortably match the indoor space. At this time, if the rotational speeds of the first blower fan 6a and the second blower fan 6b are adjusted to be relatively different, the amount of airflow of the roughened air discharged to the respective discharge ports 4a and 4b can be relatively adjusted. Will be.

However, since the conventional air conditioner has a structure in which each blowing fan sucks air through one shared suction flow path and discharges the air to each discharge port, each of the blower fans may be rotated at different speeds. There is a disadvantage that it is difficult to discharge by adjusting to different air volume through.

That is, if the rotational speed of the first blower fan is made larger than the rotational speed of the second blower fan, the pressure on the suction side of the first blower fan becomes lower than the pressure on the suction side of the second blower fan, Most of the suction air flows into the first blower fan only, especially when the suction area of the suction port is small. In this case, in the second heat exchanger disposed adjacent to the second blower fan side, since a relatively small flow rate of air passes through and heat exchanges, the heat exchanger is supercooled to form a frost, and small ice grains and water into the indoor space are formed. May fall and cause discomfort to the user.

The present invention is to solve the above-mentioned problems of the prior art, an object of the present invention is to variably divide the suction area of the suction port corresponding to the relative rotational speed of the pair of blowing fans disposed on the left and right sides of the inside of the main body. To provide an air conditioner.

1 is a cross-sectional view showing the configuration of an indoor unit of a conventional ceiling-mounted air conditioner.

Figure 2 is a cross-sectional view showing the configuration of the indoor unit of the ceiling-mounted air conditioner according to the first embodiment of the present invention having a suction area control plate installed on the rear wall of the main body so as to rotate left and right.

Figure 3 is a cross-sectional view showing the configuration of the indoor unit of the ceiling-mounted air conditioner according to the second embodiment of the present invention having a suction area control plate installed to rotate left and right on the inner surface of the front panel.

Figure 4 is a cross-sectional view showing the configuration of the indoor unit of the ceiling-mounted air conditioner according to the third embodiment of the present invention having a suction area control plate installed on the rear wall of the main body so as to be linearly movable.

Figure 5 is a cross-sectional view showing the configuration of the indoor unit of the ceiling-mounted air conditioner according to the fourth embodiment of the present invention having a suction area control plate installed on the inner surface of the front panel so as to be movable linearly from side to side.

* Description of symbols on the main parts of the drawings *

10: Main Unit 11: Front Panel

12: suction port 13a, 13b: discharge port

15a, 15b: Blower fan 20a, 20b, 20c, 20d: Suction area control plate

The present invention for achieving the object, the front panel is open, the front panel is attached to the front surface of the main body and the suction port is formed in the central portion, respectively, the first blowing fan installed on the left and right sides of the inside of the main body And an air conditioner having a second blowing fan,

The inside of the main body is characterized in that the suction area control plate is installed to variably divide the area of the suction port corresponding to the difference in the relative rotational speed of the first blowing fan and the second blowing fan.

In one embodiment of the present invention, the suction area control plate is arranged to be rotated from side to side within the main body to variably divide the suction port, the suction area control plate is installed so that the rear end of the suction area control plate to the rear wall of the main body To rotate left and right.

In another embodiment of the present invention, the suction area control plate is provided so that the front end is rotatably installed on the inner surface of the front panel.

In another embodiment of the present invention, the suction area control plate is arranged to be linearly moved from side to side within the main body to variably divide the suction port, and the suction area control plate has a rear end thereof linearly moved to the rear wall of the main body. It is installed so that it can be moved straight from side to side.

As another embodiment of the present invention, the suction area control plate is installed so that the front end is linearly movable on the inner surface of the front panel so as to move linearly left and right.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

Figure 2 is a cross-sectional view showing the configuration of the indoor unit of the ceiling-mounted air conditioner according to the first embodiment of the present invention having a suction area control plate installed on the rear wall of the main body so as to rotate left and right. As shown in the drawing, the air conditioner according to the present invention is provided with a main body 10 having a front surface open and a front panel 11 attached to the front surface of the open body.

Inlet 12 is provided at the central portion of the front panel 11 for introducing indoor air into the main body 10, and at the left and right sides of the front panel 11, a first air outlet for discharging the heat exchanged air back into the room is provided. The discharge port 13a and the 2nd discharge port 13b are provided, respectively.

On the left side of the inside of the main body 10, a first heat exchanger 14a disposed on the side of the first discharge port 13a and a first blower disposed between the first heat exchanger 14a and the first discharge port 13a. The fan 15a is provided, and on the right side of the inside of the main body 10, the second heat exchanger 14b disposed on the side of the second discharge port 13b, the second heat exchanger 14b and the second discharge port ( The 2nd blowing fan 15b arrange | positioned between 13b) is provided.

In addition, the suction area control plate 20a according to the first embodiment of the present invention is installed at the center of the left and right sides of the main body 10 to variably divide the suction port 12 of the front panel 11. The front and rear lengths of the suction area control plate 20a are formed to be substantially the same as the front and rear lengths of the suction ports 12.

The suction area adjusting plate 20a is pivotally mounted to the rear wall 10a of the main body 10 so that the rear end thereof is pivoted across the left and right directions of the suction port 12 so that the suction port 12 is variably moved. It becomes nutrient. By the suction area control plate 20a, the suction port 12 can vary the ratio of the suction flow rate on the left side and the suction flow rate on the right side, so that the first blower fan 15a installed on the left side and the second blower fan 15b installed on the right side can be varied. ), The required suction flow rate can be adjusted according to the relative rotational speed. Accordingly, the roughened air discharged through the first discharge port 13a and the roughened air discharged through the second discharge port 13b are selectively controlled and distributed. It will be possible.

The suction area control plate 20a may be configured to be automatically rotated by a device such as a step motor 21 or may be manually rotated.

Hereinafter, the operation of the suction area control plate 20a configured as described above will be described. First, the first blower fan 15a is operated at a relatively higher rotational speed than the second blower fan 15b to discharge more rough air to the first outlet 13a than the second outlet 13b. At the same time, as shown by the dashed-dotted line in FIG. 2 to send more suction air to the first blower fan 15a in accordance with the relative rotational speeds of the first blower fan 15a and the second blower fan 15b, The suction area control plate 20a is operated to rotate to the right side on which the second blowing fan 15b is disposed.

When the suction area control plate 20a is rotated to the right side, the suction area on the left side of the suction port 12 is relatively larger than the suction area on the right side with respect to the rotated suction area control plate 20a. Therefore, more air can flow to the first blower fan 15a having a relatively high rotational speed, and at the same time, air can stably flow even to the second blower fan 15b having a lower rotational speed. will be.

Contrary to the above, in order to discharge more rough air to the second discharge port 13b, the second blowing fan 15b should be operated at a relatively higher rotational speed than the first blowing fan 15a. In this case, in accordance with the relative rotational speed of the first and second blower fans 15a and 15b, the suction area control plate 20a is moved to the left side where the first blower fan 15a is disposed, as shown by the dotted line in FIG. Operate to rotate.

By operating the suction area control plate 20a, more air can flow to the second blowing fan 15b having a relatively high rotational speed, and at the same time, to the first blowing fan 15a having a relatively low rotational speed. Will also be able to flow air stably.

Figure 3 is a cross-sectional view showing the configuration of the indoor unit of the ceiling-mounted air conditioner according to the second embodiment of the present invention having a suction area control plate installed to rotate left and right on the inner surface of the front panel. As shown in the drawing, the suction area control plate 20b according to the second embodiment of the present invention is rotatably installed at the center of which the front end divides the suction port 12 from the inner surface of the front panel 11 to the left and right sides thereof. By rotating the rear end toward the first heat exchanger 14a or the second heat exchanger 14b, the suction area or the suction space of the suction port 12 is varied.

Like the suction area control plate 20a of the first embodiment, the suction area control plate 20b of this second embodiment is also configured to be automatically rotated by a device such as a step motor 21 or manually rotated by a manual device. can do.

In the suction area control plate 20b according to the second embodiment, the rear end of the suction area control plate 20b is rotated to the left and right so that the suction area or the suction space on the left and right sides of the suction port 12 is variably adjusted so that the first discharge port 13a and the second discharge port 13b are provided. Relative discharge flow rate can be adjusted.

That is, as shown by the dashed-dotted line of FIG. 3, while rotating the suction area control plate 20b to the right, the rotation speed of the first blower fan 15a is relatively higher than that of the second blower fan 15b. When operated to be high, more suction air flows to the first blower fan 15a, and more rough air is discharged to the first discharge port 13a. On the contrary, as shown in the dotted line of the suction area control plate 20b. When rotating to the left and operating the rotation speed of the second blower fan 15b to be relatively higher than the first blower fan 15a, more suction air flows to the second blower fan 15b. More rough air is discharged to the second discharge port 13b.

Figure 4 is a cross-sectional view showing the configuration of the indoor unit of the ceiling-mounted air conditioner according to the third embodiment of the present invention having a suction area control plate installed on the rear wall of the main body so as to be linearly movable. As shown in the drawing, the suction area control plate 20c according to the third embodiment of the present invention has its rear end linearly movable to the left and right of the rear wall 10a of the main body 10, and the front end thereof is the suction port 12. Will be variably divided. Due to the suction area control plate 20c, the ratio of the suction area on the left side to the suction area on the right side can be varied, so that the first blowing fan 15a installed on the left side and the second blowing fan 15b installed on the right side can be varied. ), The required suction flow rate can be adjusted according to the rotational speed. Accordingly, the roughened air discharged through the first discharge port 13a and the roughened air discharged through the second discharge port 13b are selectively controlled and distributed. It becomes possible.

Like the first and second embodiments, the suction area adjusting plate 20c can be automatically linearly moved by a device such as a roller 22 or manually linearly by a separate device.

When the suction area control plate 20c of the third embodiment configured as described above is linearly moved to the right as shown in FIG. 4, the suction area on the left becomes larger than the suction area on the right and is relatively more. At the same time, more suction air flows to the first blower fan 15a operating at a higher rotational speed, and stably the suction air flows to the second blower fan 15b operating at a lower rotational speed. More rough air can be discharged to the first discharge port 13a than to the second discharge port 13b.

On the contrary, as shown by the dotted line in FIG. 4, when the suction area control plate 20c moves linearly to the left side, more suction air flows to the second blowing fan 15b operating at a relatively higher rotational speed. As a result, more roughened air can be discharged to the second discharge port 13b than to the first discharge port 13a.

Figure 5 is a cross-sectional view showing the configuration of the indoor unit of the ceiling-mounted air conditioner according to the fourth embodiment of the present invention having a suction area control plate installed on the inner surface of the front panel so as to be movable linearly from side to side. As shown in the drawing, the suction area control plate 20d of the fourth embodiment is configured in the same manner as the suction area control plate 20c of the third embodiment except that the front end thereof is installed to be linearly moved from side to side on the inner surface of the front panel. Will not work anymore.

As described above in detail, the ceiling-mounted air conditioner according to the present invention is configured by installing a suction area control plate that can adjust the ratio of the suction area on the left side and the suction area on the right side by variably dividing the suction port inside the main body Therefore, it is possible to supply the suction air in accordance with the relative rotational speed of the pair of blowing fans arranged on the left and right sides of the main body, as well as to ensure that the suction air is stably supplied to the blowing fan with a relatively low rotational speed, In response to the rotational speed of the pair of blowing fans through the discharge port is an effect that can discharge the air conditioning the air volume is adjusted.

Claims (9)

An air conditioner having a main body having an open front surface, a front panel attached to a front surface of the main body and having a suction port formed therein, and a first blowing fan and a second blowing fan respectively provided on the left and right sides of the inside of the main body. In the phase, And an intake area control plate installed inside the main body to variably divide the area of the intake port in response to a difference in relative rotational speeds of the first blowing fan and the second blowing fan. The air conditioner according to claim 1, wherein the suction area control plate is arranged to be rotatable from side to side within the main body to variably divide the suction port. 3. The air conditioner according to claim 2, wherein the suction area adjusting plate is pivotally installed on the rear wall of the main body so as to rotate left and right. The air conditioner according to claim 2, wherein the suction area adjusting plate is pivotally installed at an end of the suction area adjusting plate so as to be rotatable from side to side. The air conditioner according to claim 1, wherein the suction area adjusting plate is arranged to be linearly moved from side to side in the main body to variably divide the suction port. 6. The air conditioner according to claim 5, wherein the suction area adjusting plate has a rear end thereof installed on the rear wall of the main body so as to be linearly movable. 6. The air conditioner according to claim 5, wherein the suction area adjusting plate is linearly movable on the inner surface of the front panel so as to move linearly from side to side. The air conditioner according to claim 1, wherein the suction area control plate is automatically adjusted to nourish the suction port. The air conditioner according to claim 1, wherein the suction area control plate is manually adjusted to nourish the suction port.