Indoor unit of air conditioner

Abstract

The utility model provides an indoor unit of an air conditioner. The indoor unit comprises a shell, a flow dividing device and an obstacle detecting device. The shell is provided with a first air outlet and a second air outlet. A main air duct section, a first air duct section and a second air duct section are arranged in the shell. The flow dividing device is rotationally arranged at the front end of the main air duct section and has a first rotating position and a second rotating position, and when the flow dividing device is located at the first rotating position, airflow passing through the first air duct section is larger than airflow passing through the second air duct section. And the airflow passing through the first air duct section is less than the airflow passing through the second air duct section at the second rotating position. The obstacle detection device is configured to detect obstacles near the shell so as to determine whether the obstacles block the first air outlet or the second air outlet or not, and then the rotating position of the flow dividing device is controlled. According to the placement position of the indoor unit of the air conditioner, most airflow is controlled to be blown out of the air outlet which is not blocked by the wall, blowing to the wall is reduced as much as possible, air loss is reduced, and waste of cooling capacity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an indoor unit of an air conditioner. Background Technology

[0002] As people have increasingly higher requirements for the appearance of floor-standing air conditioners, single-column dual-outlet air conditioners with a more neat and aesthetically pleasing appearance are becoming more and more popular. This type of floor-standing air conditioner maximizes the integrity of the front view, meaning the air outlets can only be placed on the left and right sides of the front door panel. However, feedback from numerous user surveys indicates that users habitually place the air conditioner in a corner. This placement causes the air from one of the left or right outlets to blow onto the wall, reducing the airflow into the room and thus affecting the overall heating and cooling performance, severely impacting the user experience. Utility Model Content

[0003] In view of the above problems, this utility model is proposed to provide an air conditioner indoor unit that overcomes or at least partially solves the above problems, and can solve the problem of excessive air loss and wasted cooling capacity caused by the air outlet of the air conditioner indoor unit blowing air towards the wall, thereby achieving the effect of improving the temperature rise and fall of the air conditioner indoor unit.

[0004] Specifically, this utility model provides an indoor unit for an air conditioner, comprising:

[0005] A housing is provided with a first air outlet and a second air outlet; the first air outlet is located on one side of the housing, and the second air outlet is located on the other side of the housing; both the first air outlet and the second air outlet extend vertically; an air duct is provided inside the housing, the air duct having a main air duct section, and a first air duct section and a second air duct section connected to the front end of the main air duct section; the first air duct section is connected to the first air outlet, and the second air duct section is connected to the second air outlet;

[0006] A diversion device is rotatably disposed at the front end of the main air duct section, having at least a first rotation position and a second rotation position; when the diversion device is in the first rotation position, the airflow through the first air duct section is greater than the airflow through the second air duct section, and when the diversion device is in the second rotation position, the airflow through the first air duct section is less than the airflow through the second air duct section.

[0007] An obstacle detection device is configured to detect obstacles near the housing to determine whether the obstacle is blocking the first air outlet or the second air outlet, thereby controlling the rotation position of the diversion device.

[0008] Optionally, the obstacle detection device is an infrared detection device, configured to emit infrared light and receive the light reflected by the obstacle to detect the obstacle; or, the obstacle detection device is a radar.

[0009] The obstacle detection device may be fixedly installed or movably installed.

[0010] Optionally, the first air outlet and the second air outlet are respectively disposed at the front end of the two side walls of the housing;

[0011] The obstacle detection device is located at the upper end of the front surface of the housing.

[0012] Optionally, the indoor unit of the air conditioner further includes:

[0013] A first air guide plate is rotatably disposed at the first air outlet and configured to open or close the first air outlet.

[0014] A first driving device, configured to drive the first air guide plate to rotate;

[0015] The second air guide plate is rotatably disposed at the second air outlet and configured to open or close the second air outlet;

[0016] The second drive device is configured to drive the second air guide plate to rotate.

[0017] Optionally, the indoor unit of the air conditioner further includes:

[0018] A third driving device is disposed within the housing. The third driving device is configured to drive the flow diverting device to rotate. When the flow diverting device is in the first rotation position, the flow diverting device is configured to cause more than 70% of the airflow to flow out from the first air outlet through the first air duct section. When the flow diverting device is in the second rotation position, the flow diverting device is configured to cause more than 70% of the airflow to flow out from the second air outlet through the second air duct section.

[0019] The controller is electrically connected to the first drive device, the second drive device, the third drive device, and the obstacle detection device. The controller is configured to receive obstacle information from the obstacle detection device and control the first drive device and the third drive device simultaneously, or control the second drive device and the third drive device simultaneously, based on the obstacle information.

[0020] Optionally, the indoor unit of the air conditioner further includes:

[0021] A wind deflector control signal generation device, configured to generate a wind deflector control signal;

[0022] The controller is electrically connected to the wind deflector control signal generating device so that when the first driving device and the third driving device are controlled simultaneously according to the obstacle information, only the second driving device is controlled according to the wind deflector control signal; or, when the second driving device and the third driving device are controlled simultaneously according to the obstacle information, only the first driving device is controlled according to the wind deflector control signal.

[0023] The air guide plate control signal generation device is a remote control, an input device set on the housing, or an indoor temperature detection device.

[0024] Optionally, the rear wall of the first air duct section is provided with a first clearance groove connected to the first air outlet. The first clearance groove is used to make way for the rotation of the first air guide plate. The distance between the rear edge of the first air guide plate and its axis of rotation is greater than the distance between the front edge of the first air guide plate and its axis of rotation.

[0025] The rear wall of the second air duct section is provided with a second clearance groove connected to the second air outlet. The second clearance groove is used to make way for the rotation of the second air guide plate. The distance between the rear edge of the second air guide plate and its axis of rotation is greater than the distance between the front edge of the second air guide plate and its axis of rotation.

[0026] Optionally, the indoor unit of the air conditioner further includes:

[0027] A cross-flow fan is disposed within the housing;

[0028] The main air duct end has a first air duct wall and a second air duct wall. The first air duct wall has a volute tongue that cooperates with the cross-flow impeller, and the second air duct wall has a volute shell that cooperates with the cross-flow impeller.

[0029] The rear wall of the first air duct section is connected to the first air duct wall, and the rear wall of the second air duct section is connected to the second air duct wall.

[0030] Optionally, the diversion device is an air guide grille, which has multiple grille plates extending in a vertical direction; the multiple grille plates rotate synchronously around the same vertical axis; or, each of the grille plates is rotatably arranged so that the multiple grille plates can rotate around multiple vertical axes respectively.

[0031] Optionally, the width ratio between the inlet of the first air duct section and the inlet of the second air duct section is 4 / 5 to 6 / 5;

[0032] An air guide channel is defined between each pair of adjacent grille plates. The width of the front end of the air guide channel is the width of the grille. At least one grille has a width that is not equal to the width of the other grilles. Furthermore, along the width direction of the front end of the main air duct section, the grille at the middle position has a width greater than the grille at the outermost position.

[0033] Multiple grilles rotate synchronously around the same vertical axis, and the ratio between the width of the front end and the width of the rear end of the air guide channel is 2 / 3 to 3 / 2.

[0034] In the indoor unit of this air conditioner, the airflow in the main air duct section passes through a first air duct and a second air duct, and is blown out from the first air outlet corresponding to the first air duct and the second air outlet corresponding to the second air duct. When the obstacle detection device detects an obstacle near the casing blocking the first or second air outlet, the flow direction of the airflow is adjusted by the diversion device, thereby adjusting the amount of airflow flowing out of the first or second air outlet. In some embodiments, the obstacle can be a wall. When the indoor unit of the air conditioner is installed in a corner, the obstacle detection device can detect whether the wall will block the first or second air outlet. If the wall blocks the first or second air outlet, the obstacle detection device controls the rotation position of the diversion device so that most of the airflow is blown out from the unobstructed air outlet. Taking the obstacle detection device detecting that the wall blocks the first air outlet as an example, the obstacle detection device controls the diversion device to a second rotation position, so that the airflow through the first air duct section is less than the airflow through the second air duct section. That is, most of the airflow is blown out from the second air outlet, and less airflow is blown out from the first air outlet. This design allows the indoor unit of an air conditioner with two air outlets on the left and right to control the airflow so that most of it is blown out from the outlet that is not obstructed by the wall, depending on the placement of the indoor unit in the corner of the wall. This minimizes airflow blowing onto the wall, reducing air volume loss and waste of cooling capacity. At the same time, it maximizes the amount of airflow blown into the indoor space, thus not affecting the overall heating and cooling effect of the unit and the user's experience of using the air conditioner.

[0035] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0036] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0037] Figure 1 This is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present utility model;

[0038] Figure 2 This is a schematic diagram of an air conditioner indoor unit placed in a corner of a room according to an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of an air conditioner indoor unit placed in another corner of a room according to an embodiment of the present invention;

[0040] Figure 4 This is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present utility model;

[0041] Figure 5 This is a flowchart of a control method for an indoor unit of an air conditioner according to an embodiment of the present invention. Detailed Implementation

[0042] The following reference Figures 1 to 5 This description pertains to the indoor unit of an air conditioner according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0043] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Figure 1 This is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention, as shown below. Figure 1 As shown, and with reference Figures 2 to 5 This utility model provides an indoor unit for an air conditioner, including a housing 100, a flow distribution device, and an obstacle detection device 200. The housing 100 has a first air outlet 101 and a second air outlet 102. The first air outlet 101 is located on one side of the housing 100, and the second air outlet 102 is located on the other side of the housing 100. Both the first air outlet 101 and the second air outlet 102 extend vertically. An air duct is provided inside the housing 100, having a main air duct section 130, and a first air duct section 110 and a second air duct section 120 connected to the front end of the main air duct section 130. The first air duct section 110 is connected to the first air outlet 101, and the second air duct section 120 is connected to the second air outlet 102. The flow distribution device is rotatably disposed at the front end of the main air duct section 130, having at least a first rotation position and a second rotation position. When the diversion device is in the first rotational position, the airflow through the first air duct section 110 is greater than the airflow through the second air duct section 120; when it is in the second rotational position, the airflow through the first air duct section 110 is less than the airflow through the second air duct section 120. The obstacle detection device 200 is configured to detect obstacles near the housing 100 to determine whether the obstacle is blocking the first air outlet 101 or the second air outlet 102, thereby controlling the rotational position of the diversion device.

[0047] The airflow in the main air duct section 130 passes through the first air duct section and the second air duct section, and is blown out from the first air outlet 101 corresponding to the first air duct section and the second air outlet 102 corresponding to the second air duct section. When the obstacle detection device detects an obstacle near the housing blocking the first air outlet 101 or the second air outlet 102, it adjusts the direction of the airflow by rotating the diversion device, thereby adjusting the amount of airflow flowing out of the first air outlet 101 or the second air outlet 102. In some embodiments, the obstacle can be a wall. When the indoor unit of the air conditioner is installed in a corner, the obstacle detection device 200 can detect whether the wall 800 will block the first air outlet 101 or the second air outlet 102. If the wall 800 blocks the first air outlet 101 or the second air outlet 102, the obstacle detection device 200 controls the rotation position of the diversion device so that most of the airflow is blown out from the unobstructed air outlet. Taking the obstruction detection device 200 detecting that the wall 800 is blocking the first air outlet 101 as an example, the obstruction detection device 200 controls the diversion device to be in the second rotation position, so that the airflow through the first air duct section 110 is less than the airflow through the second air duct section 120. That is to say, most of the airflow is blown out from the second air outlet 102, and less airflow is blown out from the first air outlet 101. This setting allows the indoor unit of the air conditioner with two air outlets on the left and right to control the airflow to be mostly blown out from the air outlet that is not obstructed by the wall 800, depending on the placement position of the indoor unit in the corner of the wall, minimizing the airflow blowing onto the wall 800, reducing air volume loss, reducing the waste of cooling capacity, and at the same time maximizing the amount of airflow blown into the indoor space, so as not to affect the overall heating and cooling effect of the unit and the user's air conditioning experience.

[0048] In some embodiments of this utility model, the obstacle detection device 200 is an infrared detection device, configured to emit infrared light and receive light reflected from the obstacle to detect the obstacle.

[0049] In some other embodiments of this utility model, the obstacle detection device 200 is a radar, and the obstacle detection device 200 uses radio waves to detect obstacles.

[0050] In some embodiments of this utility model, the obstacle detection device 200 is fixedly installed.

[0051] In some other embodiments of this utility model, the obstacle detection device 200 is movably configured.

[0052] In some embodiments of this utility model, the first air outlet 101 and the second air outlet 102 are respectively disposed at the front ends of the two side walls of the housing 100. This arrangement allows the first air outlet 101 and the second air outlet 102 to be as close as possible to the user's activity space that needs to be heated or cooled, thereby allowing the airflow blown out by the first air outlet 101 and the second air outlet 102 to directly reach the user's activity space.

[0053] In some embodiments of this invention, the obstacle detection device 200 is disposed at the upper end of the front surface of the housing 100. This arrangement allows the obstacle detection device 200 to have a larger detection range.

[0054] In some embodiments of this utility model, such as Figure 1 As shown, the indoor unit of the air conditioner also includes a first air guide plate 300, a first drive device 400, a second air guide plate 500, and a second drive device 600. The first air guide plate 300 is rotatably disposed at the first air outlet 101 and configured to open or close the first air outlet 101. The first drive device 400 is configured to drive the first air guide plate 300 to rotate. The second air guide plate 500 is rotatably disposed at the second air outlet 102 and configured to open or close the second air outlet 102. The second drive device 600 is configured to drive the second air guide plate 500 to rotate.

[0055] The first driving device 400 drives the first air guide plate 300 to rotate, so that the first air guide plate 300 can both guide the airflow direction through the first air outlet 101 and open or close the first air outlet 101. The second driving device 600 drives the second air guide plate 500 to rotate, so that the second air guide plate 500 can both guide the airflow direction through the second air outlet 102 and open or close the second air outlet 102.

[0056] In some embodiments of this utility model, such as Figure 1 As shown, the indoor unit of the air conditioner also includes a third drive unit 700 and a controller. The third drive unit 700 is disposed within the housing 100 and is configured to drive the air distribution device to rotate. When the air distribution device is in a first rotating position, it is configured to cause more than 70% of the airflow to flow out from the first air outlet 101 through the first air duct section 110. When the air distribution device is in a second rotating position, it is configured to cause more than 70% of the airflow to flow out from the second air outlet 102 through the second air duct section 120. The controller is electrically connected to the first drive unit 400, the second drive unit 600, the third drive unit 700, and the obstacle detection device 200. The controller is configured to receive obstacle information from the obstacle detection device 200 and simultaneously control the first drive unit 400 and the third drive unit 700, or simultaneously control the second drive unit 600 and the third drive unit 700, based on the obstacle information.

[0057] When the diversion device needs to rotate to the first rotation position, the rotation of the first air guide plate 300 is not affected by temperature or other factors. Similarly, when the diversion device needs to rotate to the second rotation position, the rotation of the second air guide plate 500 is not affected by temperature or other factors.

[0058] Based on obstacle information received from obstacle detection device 200, the controller simultaneously controls the first drive device 400 and the third drive device 700. The third drive device 700 causes the diversion device to rotate to a first rotation position, with more than 70% of the airflow passing through the first air duct section 110. The first drive device 400 causes the first air guide plate 300 to rotate to increase the air outlet area of ​​the first air outlet 101. Alternatively, based on obstacle information received from obstacle detection device 200, the controller simultaneously controls the second drive device 600 and the third drive device 700. The third drive device 700 causes the diversion device to rotate to a second rotation position, with more than 70% of the airflow passing through the second air duct section 120. The second drive device 600 causes the second air guide plate 500 to rotate to increase the air outlet area of ​​the second air outlet 102.

[0059] In some embodiments of this utility model, the third driving device 700 is a stepper motor.

[0060] In some embodiments of this invention, the indoor unit of the air conditioner further includes an air guide plate control signal generating device. The air guide plate control signal generating device is configured to generate an air guide plate control signal. The controller is electrically connected to the air guide plate control signal generating device so that, when simultaneously controlling the first drive device 400 and the third drive device 700 based on obstacle information, it controls only the second drive device 600 based on the air guide plate control signal. Alternatively, when simultaneously controlling the second drive device 600 and the third drive device 700 based on obstacle information, it controls only the first drive device 400 based on the air guide plate control signal.

[0061] When the first drive device 400 and the third drive device 700 are controlled simultaneously based on obstacle information, the diversion device and the first air guide plate 300 cooperate, with most of the airflow flowing out from the first air duct. At this time, the second drive device 600 can also be controlled solely based on the air guide plate control signal to adjust the rotation angle of the second air guide plate 500. For example, the second air guide plate 500 can close the second air outlet 102, or adjust the air outlet angle of the second air outlet 102 to ensure that the airflow passing through the second air outlet 102 blows forward rather than towards the wall 800. When the second drive device 600 and the third drive device 700 are controlled simultaneously based on obstacle information, the diversion device and the second air guide plate 500 cooperate, with most of the airflow flowing out from the second air duct. At this time, the first drive device 400 can also be controlled solely based on the air guide plate control signal to adjust the rotation angle of the first air guide plate 300. For example, the first air guide plate 300 can close the first air outlet 101, or adjust the air outlet angle of the first air outlet 101 so that the airflow through the first air outlet 101 blows forward rather than towards the wall 800.

[0062] Furthermore, in some embodiments of this utility model, the air guide plate control signal generating device is a remote controller.

[0063] In some other embodiments of this utility model, the air guide plate control signal generating device is an input device disposed on the housing 100.

[0064] In some other embodiments of this utility model, the air guide plate control signal generating device is an indoor temperature detection device.

[0065] In some embodiments of this utility model, such as Figure 1 As shown, the rear wall of the first air duct section 110 is provided with a first clearance groove 111 connected to the first air outlet 101. The first clearance groove 111 is used to allow for the rotation of the first air guide plate 300. The distance from the rear edge of the first air guide plate 300 to its axis of rotation is greater than the distance from the front edge of the first air guide plate 300 to its axis of rotation. This arrangement ensures that when the first air guide plate 300 rotates, most of its structure is within the first air outlet 101, avoiding insufficient rotation space when the portion of the first air guide plate 300 outside the first air outlet 101 is large, thus preventing interference with the rotation of the first air guide plate 300 when installed near the wall 800. The rear wall of the second air duct section 120 is provided with a second clearance groove 121 connected to the second air outlet 102. The second clearance groove 121 is used to allow for the rotation of the second air guide plate 500. The distance from the rear edge of the second air guide plate 500 to its axis of rotation is greater than the distance from the front edge of the second air guide plate 500 to its axis of rotation. This configuration ensures that when the second air guide plate 500 rotates, most of its structure is within the second air outlet 102. This avoids the situation where the larger portion of the second air guide plate 500 located outside the air outlet results in insufficient rotation space when installed near the wall 800, thus affecting the rotation of the second air guide plate 500.

[0066] In some embodiments of this utility model, such as Figure 1 As shown, the indoor unit of the air conditioner also includes a cross-flow fan 140, which is disposed within the housing 100. The main air duct end has a first air duct wall and a second air duct wall. The first air duct wall has a volute tongue 132 that mates with the cross-flow fan 140, and the second air duct wall has a volute casing 131 that mates with the cross-flow fan 140. The rear wall of the first air duct section 110 is connected to the first air duct wall, and the rear wall of the second air duct section 120 is connected to the second air duct wall.

[0067] The airflow generated by the cross-flow fan 140 flows between the volute tongue 132 and the volute casing 131, and exits through the first air duct section 110 and the second air duct section 120. The airflow generated by the cross-flow fan 140 is concentrated on one side of the volute casing 131. Guided by the volute casing 131, the airflow on the volute casing 131 side flows towards the inlet of the first air duct. Therefore, the amount of airflow passing through the first air duct is greater than that passing through the second air duct, and the first air duct has less wind resistance than the second air duct. Therefore, the airflow from the first air outlet 101 is relatively smoother. Based on the above, when installing the indoor unit of the air conditioner, the second air outlet 102 should be placed close to the wall, and the first air outlet 101 should be used for air supply.

[0068] In some embodiments of this utility model, such as Figure 1 As shown, the flow diversion device is an air guide grille 900, which has multiple grille plates extending vertically. These multiple grille plates rotate synchronously around the same vertical axis. As the airflow passes through these grille plates, its direction changes.

[0069] In some other embodiments of this invention, each grid plate is rotatably arranged so that multiple grid plates can rotate around multiple vertical axes. The multiple grid plates can rotate independently around multiple vertical axes, and the airflow changes direction after passing through the multiple grid plates.

[0070] In some embodiments of this utility model, the width ratio between the inlet of the first air duct section 110 and the inlet of the second air duct section 120 is 4 / 5 to 6 / 5. For example, the width ratio between the inlet of the first air duct section 110 and the inlet of the second air duct section 120 is 0.8, 0.9, 1.0, 1.1, or 1.2.

[0071] In some embodiments of this utility model, such as Figure 4 As shown, an air guide channel is defined between every two adjacent grille plates. The width of the front end of the air guide channel is the same as the grille width, and at least one grille width is different from the other grille widths. Furthermore, along the width direction of the front end of the main air duct section 130, the grille width at the middle position is greater than the grille width at the outermost position.

[0072] Since the wind is more likely to enter the first and second air ducts in the middle of the width direction of the front end of the main air duct section 130, the width of the grille at the middle position can be increased in order to reduce wind resistance.

[0073] In some embodiments of this invention, multiple grille plates rotate synchronously around the same vertical axis, and the ratio between the width of the front end and the width of the rear end of the air guide channel is 2 / 3 to 3 / 2. For example, the ratio between the width of the front end and the width of the rear end of the air guide channel is 0.66, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, or 1.5.

[0074] This design facilitates the entry of airflow into the air guide channel, and the airflow speed increases after entering the air guide channel. When the airflow flowing out of the air guide channel enters the first air duct or the second air duct and is blown out from the first air outlet 101 or the second air outlet 102, the airflow can be sent to a farther position, thus taking into account both the air delivery distance and the air delivery to one side.

[0075] In some embodiments of this utility model, such as Figure 2 , Figure 3 and Figure 5 As shown, after the indoor unit of the air conditioner is turned on, the first air outlet 101 and the second air outlet 102 simultaneously supply air. Figure 2 As shown, when the obstacle detection device 200 detects that the wall 800 is to the right of the indoor unit of the air conditioner, the controller controls the air distribution device to rotate to the right to the first rotation position. More than 70% of the airflow flows out from the first air outlet 101 through the first air duct section 110, which is the main air path. This setting can reduce the airflow blowing towards the wall 800, thereby reducing air loss and improving the heating and cooling effect of the indoor unit of the air conditioner. Figure 3 As shown, when the obstacle detection device 200 detects that the wall 800 is to the left of the indoor unit of the air conditioner, the controller controls the diversion device to rotate to the left to the second rotation position. More than 70% of the airflow flows out from the second air outlet 102 through the second air duct section 120, which is the main air path. This setting can reduce the airflow blowing towards the wall 800, thereby reducing air loss and improving the heating and cooling effect of the indoor unit of the air conditioner. Of course, if the obstacle detection device 200 does not detect the wall 800, that is, when the indoor unit of the air conditioner is not in a corner, the first air outlet 101 and the second air outlet 102 still supply air normally, and the heating and cooling effect of the indoor unit of the air conditioner is still improved.

[0076] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: A housing is provided with a first air outlet and a second air outlet; the first air outlet is located on one side of the housing, and the second air outlet is located on the other side of the housing; both the first air outlet and the second air outlet extend vertically; an air duct is provided inside the housing, the air duct having a main air duct section, and a first air duct section and a second air duct section connected to the front end of the main air duct section; the first air duct section is connected to the first air outlet, and the second air duct section is connected to the second air outlet; A diversion device is rotatably disposed at the front end of the main air duct section, having at least a first rotation position and a second rotation position; when the diversion device is in the first rotation position, the airflow through the first air duct section is greater than the airflow through the second air duct section, and when the diversion device is in the second rotation position, the airflow through the first air duct section is less than the airflow through the second air duct section. An obstacle detection device is configured to detect obstacles near the housing to determine whether the obstacle is blocking the first air outlet or the second air outlet, thereby controlling the rotation position of the diversion device.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The obstacle detection device is an infrared detection device, configured to emit infrared light and receive the light reflected by the obstacle to detect the obstacle; or, the obstacle detection device is a radar. The obstacle detection device may be fixedly installed or movably installed.

3. The indoor unit of the air conditioner according to claim 1, characterized in that, The first air outlet and the second air outlet are respectively located at the front ends of the two side walls of the housing; The obstacle detection device is located at the upper end of the front surface of the housing.

4. The indoor unit of the air conditioner according to any one of claims 1 to 3, characterized in that, Also includes: A first air guide plate is rotatably disposed at the first air outlet and configured to open or close the first air outlet. A first driving device, configured to drive the first air guide plate to rotate; The second air guide plate is rotatably disposed at the second air outlet and configured to open or close the second air outlet; The second drive device is configured to drive the second air guide plate to rotate.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, Also includes: A third driving device is disposed within the housing. The third driving device is configured to drive the flow diverting device to rotate. When the flow diverting device is in the first rotation position, the flow diverting device is configured to cause more than 70% of the airflow to flow out from the first air outlet through the first air duct section. When the flow diverting device is in the second rotation position, the flow diverting device is configured to cause more than 70% of the airflow to flow out from the second air outlet through the second air duct section. The controller is electrically connected to the first drive device, the second drive device, the third drive device, and the obstacle detection device. The controller is configured to receive obstacle information from the obstacle detection device and control the first drive device and the third drive device simultaneously, or control the second drive device and the third drive device simultaneously, based on the obstacle information.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, Also includes: A wind deflector control signal generation device, configured to generate a wind deflector control signal; The controller is electrically connected to the wind deflector control signal generating device so that when the first driving device and the third driving device are controlled simultaneously according to the obstacle information, only the second driving device is controlled according to the wind deflector control signal; or, when the second driving device and the third driving device are controlled simultaneously according to the obstacle information, only the first driving device is controlled according to the wind deflector control signal. The air guide plate control signal generation device is a remote control, an input device set on the housing, or an indoor temperature detection device.

7. The indoor unit of the air conditioner according to claim 5, characterized in that, The rear wall of the first air duct section is provided with a first clearance groove connected to the first air outlet. The first clearance groove is used to make way for the rotation of the first air guide plate. The distance from the rear edge of the first air guide plate to its axis of rotation is greater than the distance from the front edge of the first air guide plate to its axis of rotation. The rear wall of the second air duct section is provided with a second clearance groove connected to the second air outlet. The second clearance groove is used to make way for the rotation of the second air guide plate. The distance between the rear edge of the second air guide plate and its axis of rotation is greater than the distance between the front edge of the second air guide plate and its axis of rotation.

8. The indoor unit of the air conditioner according to claim 1, characterized in that, Also includes: A cross-flow impeller is disposed within the housing; The main air duct section has a first air duct wall and a second air duct wall. The first air duct wall has a volute tongue that cooperates with the cross-flow impeller, and the second air duct wall has a volute shell that cooperates with the cross-flow impeller. The rear wall of the first air duct section is connected to the first air duct wall, and the rear wall of the second air duct section is connected to the second air duct wall.

9. The indoor unit of the air conditioner according to claim 1, characterized in that, The diversion device is an air guide grille, which has multiple grille plates extending in a vertical direction; the multiple grille plates rotate synchronously around the same vertical axis; or, each of the grille plates is rotatably arranged so that the multiple grille plates can rotate around multiple vertical axes respectively.

10. The indoor unit of the air conditioner according to claim 9, characterized in that, The width ratio between the inlet of the first air duct section and the inlet of the second air duct section is 4 / 5 to 6 / 5; An air guide channel is defined between each pair of adjacent grille plates. The width of the front end of the air guide channel is the width of the grille. At least one grille has a width that is not equal to the width of the other grilles. Furthermore, along the width direction of the front end of the main air duct section, the grille at the middle position has a width greater than the grille at the outermost position. Multiple grilles rotate synchronously around the same vertical axis, and the ratio between the width of the front end and the width of the rear end of the air guide channel is 2 / 3 to 3 / 2.

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