WO2018192385A1

WO2018192385A1 - Air conditioner and control method therefor

Info

Publication number: WO2018192385A1
Application number: PCT/CN2018/082388
Authority: WO
Inventors: 郝铁钢; 孙强
Original assignee: 青岛海尔空调器有限总公司
Priority date: 2017-04-17
Filing date: 2018-04-09
Publication date: 2018-10-25
Also published as: CN107084429B; CN107084429A

Abstract

A control method for an air conditioner comprises: an indoor unit receives a shutdown signal; close a front air outlet (11), and at the same time, open a side air outlet (13) or maintain the opening state of the side air outlet (13); and after the wait of a preset time, close the side air outlet (13). After a user closes the air conditioner, the front air outlet (11) of the indoor unit facing to the user is immediately closed, so as to avoid misoperations due to the fact that the user may mistakenly think that the shutdown is successful and then performs the shutdown operation. Because the side air outlet (13) does not directly face to the user, the user cannot observe the opening and closing of the side air outlet (13), so that misoperations of the user can be reduced. In addition, the side air outlet (13) of the indoor unit is open, which helps to discharge residual heat or residual cool in the indoor unit. Also disclosed is an air conditioner.

Description

Air conditioner and control method thereof

Technical field

The present invention relates to an air conditioning apparatus, and more particularly to an air conditioner and a control method therefor.

Background technique

After the air conditioner is turned off, the compressor will stop working. However, since the temperature of the evaporator of the indoor unit cannot be quickly restored to the indoor temperature, residual heat or residual cooling remains inside the indoor unit for a period of time immediately after the shutdown. At this time, it is not appropriate to directly close the air outlet of the indoor unit. Otherwise, the residual cooling or residual heat inside the indoor unit will not be discharged. The temperature of overheating or undercooling may affect the service life of the internal components of the indoor unit.

In order to solve the above problem, after the existing air conditioner executes the shutdown command, the indoor air conditioner is delayed for a while and then closed to discharge the remaining cooling amount or residual heat. At the same time, the air deflector at the air outlet of the indoor unit will not be closed immediately, but wait for a while, and the fan will close the air outlet after the residual cooling or residual heat is discharged from the indoor unit. However, during the time when the air deflector is delayed, the user may mistakenly believe that the shutdown is unsuccessful, and the remote control's power on/off operation may be performed again, resulting in malfunction.

Summary of the invention

In view of the above problems, the present invention has been made in order to provide an air conditioner and a control method thereof that overcome the above problems or at least partially solve the above problems.

A further object of the present invention is to discharge residual or residual heat inside the indoor unit after shutdown.

Another further object of the present invention is to prevent user misuse.

In one aspect, the present invention provides a method of controlling an air conditioner, the air conditioner including an indoor unit including at least one forward air outlet disposed on a front side surface of the housing and at least two lateral surfaces of the housing A lateral air outlet, the method includes: the indoor unit receives the shutdown signal; closes the front air outlet, simultaneously opens the lateral air outlet or maintains the opening state of the lateral air outlet; and after waiting for the preset time, closes the lateral air outlet .

Optionally, after the step of receiving the shutdown signal by the indoor unit, the method further includes: turning off the compressor of the air conditioner, stopping cooling or heating.

Optionally, after the step of receiving the shutdown signal by the indoor unit, the method further comprises: controlling the air conditioner of the indoor unit to decrease to a preset rotation speed.

Optionally, after the step of closing the lateral air outlet, the method further comprises: controlling the fan of the indoor unit to stop rotating.

Optionally, the preset time is 20s to 30s.

In another aspect, an air conditioner is provided, including: an indoor unit, the indoor unit includes: a housing; at least one forward air outlet disposed on a front side surface of the housing; and at least one first air deflector group, each The first air deflector group is disposed at a forward air outlet for opening or closing the forward air outlet, and each of the first air deflector groups is configured to close the forward air outlet after the indoor unit receives the shutdown signal; At least one lateral air outlet is disposed on two lateral side surfaces of the housing; at least one second air deflector group, each second air deflector group is disposed at a lateral air outlet for opening or closing the lateral direction An air outlet; each of the second air deflector groups is configured to open a lateral air outlet or maintain a side air outlet opening state after the indoor unit receives the shutdown signal; and after the indoor unit receives the shutdown signal and waits for a preset time , close the lateral air outlet.

Optionally, the air conditioner further includes: a compressor configured to be turned off after the indoor unit receives the shutdown signal to stop cooling or heating.

Optionally, the indoor unit further includes: a fan disposed inside the casing of the indoor unit and located at a rear side of the at least one forward air outlet, and the fan is configured to be lowered to a preset speed after the indoor unit receives the shutdown signal.

Optionally, the fan is further configured to stop rotating after closing the lateral air outlet.

Optionally, the second air deflector group includes at least one second air deflector, each of the second air deflectors is pivotally disposed at the lateral air outlet, and each of the second air deflectors is configured to face the housing The interior pivots to open the lateral air outlet.

The invention provides a method for controlling an air conditioner, comprising: receiving an off signal by an indoor unit; closing a forward air outlet, simultaneously opening a lateral air outlet or maintaining an open state of a lateral air outlet; and waiting for a preset time, Close the lateral air outlet. In the present invention, after the user turns off the air conditioner, the front air outlet of the indoor unit facing the user is immediately closed, thereby avoiding the user may mistakenly believe that the shutdown is unsuccessful, and the operation of the remote control is performed again, thereby causing misoperation. At the same time, the lateral air outlet of the indoor unit is opened to facilitate the waste heat or residual cooling inside the indoor unit. Since the lateral air outlet is not facing the user, the user cannot observe the opening and closing state of the lateral air outlet, so that the user does not mistakenly believe that the air conditioner is not turned off and performs an erroneous operation.

Further, the present invention further comprises: after the step of receiving the shutdown signal by the indoor unit, the fan of the control room is lowered to a preset speed. In the process of exhausting cold or residual heat, the fan does not need to run at high power, and the fan appropriately reduces the speed to save energy.

Still further, the present invention also provides an air conditioner. The second air deflector assembly of the air conditioner includes at least one second air deflector, each of the second air deflectors is pivotally disposed at the lateral air outlet, and each of the second air deflectors is configured to face the housing The interior pivots to open the lateral air outlet. That is to say, when the lateral air outlet switch operation is performed, the user in front of the air conditioner does not see the second air deflector action, so the appearance of the air conditioner indoor unit is not affected, and the user does not mistakenly believe The air conditioner does not respond to the shutdown operation.

The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <

DRAWINGS

Some specific embodiments of the present invention are described in detail below by way of example, and not limitation. The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:

1 is a schematic view of an indoor unit of an air conditioner according to an embodiment of the present invention;

2 is a schematic block diagram of an air conditioner according to an embodiment of the present invention;

3 is a schematic diagram of a method of controlling an air conditioner according to an embodiment of the present invention;

4 is a flow chart of a method of controlling an air conditioner in accordance with one embodiment of the present invention.

detailed description

The embodiment first provides an air conditioner, and the air conditioner includes an indoor unit and a compressor. 1 is a schematic view of an indoor unit of an air conditioner according to an embodiment of the present invention; and FIG. 2 is a schematic block diagram of an air conditioner according to an embodiment of the present invention. The indoor unit of this embodiment is a vertical air conditioner indoor unit. The indoor unit includes a housing 10, at least one forward air outlet 11, at least one first air deflector group 12, at least one lateral air outlet 13 and at least one second air deflector group 14.

The forward air outlet 11 is provided on the front side surface of the casing 10. Each of the first air deflector groups 12 is disposed at a forward air outlet 11 for opening or closing the forward air outlets 11, and each of the first air deflector groups 12 is configured to be turned off after the indoor unit receives the shutdown signal. Forward air outlet 11. In this embodiment, the number of the forward air outlets 11 is three, and both are circular air outlets. Each of the first air deflector groups 12 has a plurality of strip-shaped first air deflectors. A plurality of first air guiding plates are arranged in parallel at the front air outlet 11 to close the air outlet. A pivot shaft is also provided at each end of each of the first air deflectors, and the forward air outlet 11 is pivotally opened or closed.

The lateral air outlets 13 are provided on both lateral lateral surfaces of the casing 10. Each of the second air deflector groups 14 is disposed at a lateral air outlet 13 for opening or closing the lateral air outlets 13. Each second air deflector group 14 is configured to open the lateral air outlet 13 or maintain the open state of the lateral air outlet 13 after the indoor unit receives the shutdown signal; and after the indoor unit receives the shutdown signal and waits for a preset time , the lateral air outlet 13 is closed. In the present embodiment, the number of the lateral air outlets 13 is two, and is a rectangular air outlet, and the two lateral air outlets 13 are symmetrically disposed on both sides of the casing 10. The opening area of the lateral air outlet 13 is smaller than that of the forward air outlet 11. Each of the second air deflector groups 14 includes a second air deflector, and the shape of the second air deflector matches the shape of the rectangular air outlet. One side edge of the second air deflector is provided with a pivot shaft to allow the second air deflector to pivotally open or close the lateral air outlet 13. In other embodiments, the second air deflector group 14 may further include a plurality of second air deflectors.

The second air deflector may be disposed to pivot toward the interior of the housing 10 to open the lateral air outlets 13. That is to say, when the lateral air outlet 13 is operated to perform the switching operation, the user located in front of the air conditioner does not see the second air deflector action. This design does not affect the appearance of the air conditioner indoor unit, and does not let the user mistakenly believe that the air conditioner does not respond to the shutdown operation.

In this embodiment, the user can turn the air conditioner on or off through the air conditioner remote controller. After the user turns on the air conditioner using the remote controller, the air conditioner main control board 40 receives the power-on signal. The main control board 40 controls the plurality of first air deflector groups 12 to pivotally open the front air outlets 11. During the operation of the air conditioner, the user can also use the remote controller to open the lateral air outlet 13 to realize the lateral airflow of the indoor unit.

After the user turns off the air conditioner using the remote controller, the air conditioner main control board 40 receives the shutdown signal. The main control board 40 controls the plurality of first air deflector groups 12 to pivotally close the forward air outlets 11, and the indoor unit stops the wind on the front side. If the lateral air outlet 13 is in the closed state, the main control panel 40 controls the second air deflector group 14 to open the lateral air outlet 13; if the lateral air outlet 13 is in the open state, the main control panel 40 controls The second air deflector group 14 remains open.

The compressor 20 may be disposed in an outdoor unit of the air conditioner. After the indoor unit receives the shutdown signal, the main control board 40 controls the compressor 20 to be turned off to stop cooling or heating.

The above air conditioner indoor unit further includes a fan 30. The fan 30 is disposed inside the casing 10 of the indoor unit and is located at the rear side of the at least one forward air outlet 11, and the fan 30 is configured to be lowered to a preset rotational speed after the indoor unit receives the shutdown signal. In the present embodiment, the fan 30 may be a cross flow fan 30. The cross flow fan 30 is vertically disposed inside the casing 10 and located at a rear side of the plurality of forward air outlets 11 and at an intermediate position of the two lateral air outlets 13. The cross flow fan 30 can be sent to the front side air outlets. The wind can also supply air to the lateral air outlets 13 on both sides. The air conditioner main control board 40 receives the shutdown signal, and controls the cross flow fan 30 to appropriately reduce the rotation speed so that the residual heat or residual cooling inside the indoor unit can be discharged from the lateral air outlet 13. Specifically, the main control board 40 can control the cross flow fan 30 to be lowered to a preset rotation speed. The above preset rotational speed can be determined according to the size of the lateral air outlet 13 and the cooling or heating temperature.

The cross flow fan 30 stops rotating after the side air outlet 13 is closed. After the front air outlet 11 is closed and a predetermined time elapses, the lateral air outlet 13 is closed, and the main control panel 40 controls the cross flow fan 30 to stop rotating. The preset time is the time for the indoor unit to discharge the internal residual cooling or residual heat, and the preset time may be specifically determined according to the size of the lateral air outlet 13 and the cooling or heating temperature. In this embodiment, the preset time may be 20s to 30s.

The present invention also provides a method of controlling an air conditioner, and FIG. 3 is a schematic diagram of a method of controlling an air conditioner according to an embodiment of the present invention. The above methods include:

In step S302, the indoor unit receives the shutdown signal. In this embodiment, the user can turn the air conditioner on or off through the air conditioner remote controller. After the user turns on the air conditioner using the remote controller, the air conditioner main control board 40 receives the power-on signal. In still other embodiments, the user can also directly operate the buttons on the indoor unit panel to turn the air conditioner on or off.

In step S304, the forward air outlet 11 is closed, and the lateral air outlet 13 is opened or the open state of the lateral air outlet 13 is maintained. After the user turns off the air conditioner, the main control panel 40 immediately controls the first air deflector group 12 to close all of the forward air outlets 11 to convince the user that the air conditioner has been successfully turned off. At the same time, the main control panel 40 controls the second air deflector group 14 to open the lateral air outlet 13 or maintain the open state of the lateral air outlet 13 to discharge residual or residual heat remaining in the evaporator inside the indoor unit.

In step S306, after waiting for the preset time, the lateral air outlet 13 is closed. The lateral air outlet 13 is closed after the exhausting or residual heat is discharged.

4 is a flow chart of a method of controlling an air conditioner in accordance with one embodiment of the present invention. This method performs the following steps in sequence:

In step S402, the indoor unit receives the shutdown signal.

In step S404, the compressor 20 of the air conditioner is turned off to stop cooling or heating. After the indoor unit receives the shutdown signal. The main control board 40 controls the compressor 20 of the air conditioner to be turned off, and the evaporator stops cooling or heating.

In step S406, the fan 30 of the indoor unit is controlled to be lowered to a preset speed. While closing the front air outlet 11, the blower 30 lowers the rotational speed. The above preset speed is the fan speed required inside the indoor unit during the residual cooling or residual heat of the indoor unit.

In step S408, the forward air outlet 11 is closed, and the lateral air outlet 13 is opened or the open state of the lateral air outlet 13 is maintained. In this embodiment, after the front air outlet 11 is closed, it is necessary to determine whether the lateral air outlet 13 is in an open state. If the result of the step is YES, the user is using the lateral air outlet function before shutting down. Then, the open state of the lateral air outlet 13 is maintained so that the residual cooling or residual heat is discharged from the lateral air outlet 13. If the judgment result is no, the user does not use the lateral air outlet function before shutting down. Then the lateral air outlet 13 is opened at this time.

In step S410, after waiting for the preset time, the fan 30 of the indoor unit is controlled to stop rotating, and the air supply is stopped. The above preset time is the time for the indoor unit to discharge the internal residual cooling or residual heat. The above preset time can be 20S to 30S.

In step S412, the lateral air outlet 13 is closed while the air supply is stopped. After the indoor unit finishes the work of exhausting heat or residual cooling, the main control board 40 controls the second air deflector group 14 to close the lateral air outlet 13.

Those skilled in the art should understand that "upper", "lower", "left", "right", "horizontal", "vertical", "front" are referred to in the embodiments of the present invention unless otherwise specified. The term "post" or the like used to indicate the position or positional relationship is based on the actual use state of the indoor unit of the air conditioner. These terms are only for convenience of description and understanding of the technical solution of the present invention, and are not indicative or implied. The device or component referred to must have a particular orientation and is therefore not to be construed as limiting the invention.

In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims

A method of controlling an air conditioner, the air conditioner comprising an indoor unit, the indoor unit including at least one forward air outlet provided on a front side surface of a casing thereof, and at least one disposed on a lateral side surface of the casing a lateral air outlet, the method comprising:

The indoor unit receives a shutdown signal;

Closing the forward air outlet while opening the lateral air outlet or maintaining the opening state of the lateral air outlet; and

After waiting for the preset time, the lateral air outlet is closed.
The control method according to claim 1, wherein after the step of receiving the shutdown signal by the indoor unit, the method further comprises:

The compressor of the air conditioner is turned off to stop cooling or heating.
The control method according to claim 1, wherein after the step of receiving the shutdown signal by the indoor unit, the method further comprises:

The fan that controls the indoor unit is lowered to a preset speed.
The control method according to claim 3, wherein after the step of closing the lateral air outlet, the method further comprises:

The fan that controls the indoor unit stops rotating.
The control method according to claim 1, wherein

The preset time is 20s to 30s.
An air conditioner comprising:

Indoor unit, the indoor unit includes:

case;

At least one forward air outlet disposed on a front side surface of the housing;

At least one first air deflector group, each of the first air deflector groups being disposed at one of the forward air outlets for opening or closing the forward air outlet, each of the first air guiding The board group is configured to close the forward air outlet after the indoor unit receives the shutdown signal;

At least one lateral air outlet disposed on lateral lateral surfaces of the housing;

At least one second air deflector group, each of the second air deflector groups being disposed at the one lateral air outlet for opening or closing the lateral air outlet; each of the second air guides The board group is configured to open the side air outlet or maintain the open state of the side air outlet after the indoor unit receives the shutdown signal; and after the indoor unit receives the shutdown signal and waits for a preset time, Close the lateral air outlet.
The air conditioner according to claim 6, further comprising:

The compressor is configured to be turned off after the indoor unit receives the shutdown signal to stop cooling or heating.
The air conditioner according to claim 6, wherein the indoor unit further comprises:

The fan is disposed inside the casing of the indoor unit and located at a rear side of the at least one forward air outlet, and the fan is configured to be lowered to a preset rotation speed after the indoor unit receives the shutdown signal.
The air conditioner according to claim 8, wherein

The fan is further configured to stop rotating after closing the lateral air outlet.
The air conditioner according to any one of claims 6 to 9, wherein

The second air deflector group includes at least one second air deflector, each of the second wind deflectors is pivotally disposed at the lateral air outlet, and each of the second air deflector configurations Pivoting toward the interior of the housing to open the lateral air outlet.