Cabinet type air conditioner indoor unit and air conditioner air supply control method thereof

Abstract

The application provides a cabinet type air conditioner indoor unit and an air supply control method of an air conditioner thereof. The cabinet type air conditioner indoor unit comprises a casing, an air outlet grille, two first air deflectors and two second air deflectors. An air outlet is arranged on a front air outlet wall of the casing. The air outlet grille has a main surface and two side end surfaces. The main surface is located in front of the front air outlet wall. The main surface has a transparent air outlet area in front of the air outlet and two closed areas formed on the lateral sides of the transparent air outlet area. The two side end surfaces are respectively formed on the outer edges of the two closed areas and are connected to the lateral edges of the front air outlet wall. The two first air deflectors have a closed position for closing the transparent air outlet area and an open position for avoiding the transparent air outlet area on the two sides respectively. The two second air deflectors are rotatable around the two lateral edges close to the air outlet. The cabinet type air conditioner indoor unit can realize three-side air outlet and prevent direct blowing to the user on each side.

Description

Technical Field

[0001] This invention relates to air conditioning technology, and in particular to a cabinet-type air conditioner indoor unit and its air supply control method. Background Technology

[0002] Traditional cabinet air conditioner indoor units primarily blow air forward. When the airflow is entirely from the front, the high airflow speed can easily cause discomfort when it blows directly onto people. To address the issue of direct airflow onto users, existing technologies have incorporated rotating blades and deflectors to guide the heat exchange airflow away from the user. However, due to the inherent limitations of the airflow angle, these methods cannot effectively avoid the user over a wide area. Therefore, further improvements are necessary. Summary of the Invention

[0003] One object of the present invention is to overcome at least one defect in the prior art and to provide a cabinet air conditioner indoor unit that can supply air from three sides and can prevent direct blowing to users on each side.

[0004] A further objective of this invention is to improve the effect of forward airflow.

[0005] Specifically, the present invention provides a cabinet-type air conditioner indoor unit, comprising: a casing having an air outlet front wall, wherein an air outlet that opens forward is provided in the transverse middle of the air outlet front wall; an air outlet grille having a main body surface and two side end surfaces, the main body surface being located opposite each other in front of the air outlet front wall, the main body surface having a ventilation area directly in front of the air outlet and two closed areas formed on both transverse sides of the ventilation area, the two side end surfaces being formed on the outer edges of the two closed areas and connecting to the two side edges of the air outlet front wall; and two first air guide plates configured to move towards or away from each other along the inner surface of the main body surface, and the two first air guide plates having a transverse... The unit comprises a closed position for the side-by-side enclosed ventilation area and an open position for the side-by-side ventilation area; two second air guides configured to rotate around two side edges adjacent to the air outlet; and a cabinet-type air conditioner indoor unit configured such that: the two first air guides are in the closed position, and the two second air guides are rotated to be attached to the front wall of the air outlet, so as to guide the heat exchange airflow through the side end faces for discharge using the first air guides and the enclosed area; or, the two first air guides are in the open position, and at least one second air guide is rotated so that the end away from the pivot axis is behind the ventilation area, so as to guide the heat exchange airflow through the ventilation area.

[0006] Optionally, the lateral width of each first air guide plate is set to be no greater than the lateral width of the corresponding closed area; and / or, the lateral width from the edge of the front wall of the air outlet to the edge of the air outlet is set to be no less than the width of the second air guide plate.

[0007] Optionally, the lateral width of the ventilation area is set to be the same as the lateral width of the air outlet, and the ventilation area and the air outlet are directly opposite each other; and the width of each second air guide plate is set to be the same as the distance between the main body surface and the front wall of the air outlet.

[0008] Optionally, the orthographic projection of the air outlet onto the ventilation area is located inside the ventilation area.

[0009] Optionally, the indoor unit of the cabinet air conditioner also includes: two sets of first drive mechanisms for driving the two first air guide plates to rotate respectively. Each set of first drive mechanisms includes a first motor, a transmission gear and a rack. The first motor is fixed to the housing, the transmission gear is fixed to the output shaft of the first motor, the transmission gear meshes with the rack, and the rack is arranged along the width direction of the first air guide plate.

[0010] Optionally, the indoor unit of the cabinet air conditioner also includes: two sets of second drive mechanisms for driving the two second air guide plates to rotate respectively. Each set of second drive mechanisms includes a second motor, a drive gear and a driven gear. The second motor is fixed to the housing, the drive gear is fixed to the output shaft of the second motor, the driven gear meshes with the drive gear, and the driven gear is connected to the rotation shaft of the second air guide plate.

[0011] Optionally, the housing also has an exterior front wall, which is positioned further forward than the air outlet front wall; the outline of the exterior front wall matches the outline of the main body surface, and the exterior front wall is flush with the main body surface.

[0012] Optionally, the front wall of the exterior can be configured as a flat surface or a convex arc surface.

[0013] Specifically, the present invention provides an air supply control method for an air conditioner, the air conditioner including any of the above-mentioned cabinet air conditioner indoor units; and the air supply control method includes: receiving a signal from a user to activate the anti-direct-blow mode; detecting the presence of the user in three preset areas in the indoor environment where the indoor unit is located, wherein the three preset areas are the front area, the left area, and the right area of ​​the cabinet air conditioner indoor unit; and controlling the first air guide plate and the second air guide plate to adjust the air supply direction of the heat exchange airflow according to the presence situation, so as to stop the air supply to the preset area where the user is present, thereby realizing the anti-direct-blow function.

[0014] Optionally, the step of controlling the first and second air guide plates to adjust the airflow direction of the heat exchange airflow according to the presence of users further includes: when a user is detected in the front area, causing the two first air guide plates to move to the closed position to cut off the path of airflow to the front area; when a user is detected in the left area, causing the two first air guide plates to move to the open position, causing the second air guide plate near the left area to rotate so that the end away from the pivot axis is behind the ventilation area to cut off the path of airflow to the left area; when a user is detected in the right area, causing the two first air guide plates to move to the open position, causing the second air guide plate near the right area to rotate so that the end away from the pivot axis is behind the ventilation area to cut off the path of airflow to the right area.

[0015] Optionally, the step of controlling the first and second air guides to adjust the airflow direction of the heat exchange airflow according to the presence of users further includes: when it is detected that there are no users in all areas, causing the two first air guides to move to the open position, and causing the two second air guides to attach to the front wall of the air outlet respectively to send air to the forward area, and using the two first air guides to send air to the left and right areas respectively.

[0016] The indoor unit of the cabinet-type air conditioner of the present invention has a ventilation area located directly in front of the air outlet, two enclosed areas formed on both sides of the ventilation area, and two side end faces formed on the outer edges of the two enclosed areas and connected to the two side edges of the front air outlet wall. Two first air guide plates can translate along the inner surface of the main body, and two second air guide plates can rotate around the two side edges adjacent to the air outlet. When the two first air guide plates are in the closed position, and the two second air guide plates rotate to be attached to the front air outlet wall, air is discharged from the sides but not from the front, preventing direct airflow to the user in front. When the two first air guide plates are in the open position, and the two second air guide plates rotate so that one end away from the pivot axis is behind the ventilation area, air is discharged to the front but not from the sides, simultaneously preventing direct airflow to the users on the left and right sides. When the two first air guides are in the open position, the second air guide on one side rotates so that the end away from the pivot axis is behind the ventilation area, while the second air guide on the other side rotates so that it is attached to the front wall of the air outlet, so that air can be discharged to the front side and one side while the other side does not, thus preventing direct airflow on one side.

[0017] Furthermore, in the cabinet-type air conditioner indoor unit of the present invention, the lateral width of the ventilation area is set to be the same as the lateral width of the air outlet, and the ventilation area and the air outlet are directly opposite each other. The width of each air guide plate is set to be the same as the distance between the main body surface and the front wall of the air outlet. When the air is converged and delivered forward, the two air guide plates can be rotated so that the end away from the pivot axis abuts against the lateral edges of the ventilation area. The air outlet channel formed in this way is almost sealed, and the heat exchange airflow will not pass through from both sides, which further improves the effect of converged air delivery.

[0018] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0019] The following sections will describe some specific embodiments of the invention in detail 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 portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 This is a schematic diagram of a cabinet-type air conditioner indoor unit according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the air outlet grille in the indoor unit of a cabinet air conditioner according to an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of the indoor unit of a cabinet air conditioner in the first state according to an embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional view of the second state of the indoor unit of a cabinet air conditioner according to an embodiment of the present invention;

[0024] Figure 5 This is a cross-sectional view of the indoor unit of a cabinet air conditioner in a third state according to an embodiment of the present invention;

[0025] Figure 6 This is a cross-sectional view of the fourth state of the indoor unit of a cabinet air conditioner according to an embodiment of the present invention;

[0026] Figure 7 This is a cross-sectional view of the fifth state of the indoor unit of a cabinet air conditioner according to an embodiment of the present invention;

[0027] Figure 8 This is a cross-sectional view of an indoor unit of a cabinet air conditioner in one state according to another embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram showing the installation relationship between the first drive mechanism and the first air guide plate in an indoor unit of a cabinet air conditioner according to an embodiment of the present invention.

[0029] Figure 10 This is a schematic diagram illustrating the installation relationship between the second drive mechanism and the second air guide plate in an indoor unit of a cabinet air conditioner according to an embodiment of the present invention.

[0030] Figure 11 This is a schematic diagram showing the installation relationship between the casing and the air outlet grille of a cabinet-type air conditioner indoor unit according to an embodiment of the present invention;

[0031] Figure 12This is a schematic diagram of the installation relationship between the casing and the air outlet grille of a cabinet-type air conditioner indoor unit according to another embodiment of the present invention;

[0032] Figure 13 This is a schematic diagram of the control principle in an air conditioner according to an embodiment of the present invention;

[0033] Figure 14 This is a flowchart of an air supply control method for an air conditioner according to an embodiment of the present invention. Detailed Implementation

[0034] In the description of this embodiment, it should be understood that the terms "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," and "depth," etc., indicate the orientation or positional relationship based on the orientation of the indoor unit 1 of the cabinet air conditioner under normal use, and can be determined with reference to the orientation or positional relationship shown in the accompanying drawings. For example, "front" in indicating orientation refers to the side facing the user. This is only for the convenience of describing the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0035] This invention first provides an air conditioner, which generally includes an indoor unit installed indoors and an outdoor unit installed outdoors. The air conditioner utilizes a circulating refrigeration system to achieve cooling or heating. This system uses a refrigerant in a compression phase-change cycle through a compressor, an outdoor unit heat exchanger, an indoor unit heat exchanger, and a throttling device to transfer heat. In the air conditioner, the refrigeration system can also be equipped with a reversing valve to change the direction of refrigerant flow, causing the indoor unit heat exchanger to alternately act as an evaporator or condenser to achieve cooling or heating functions. Since the circulating refrigeration system in air conditioners is well known to those skilled in the art, its working principle and structure will not be described in detail here.

[0036] In some embodiments, the present invention also provides a cabinet-type indoor unit capable of discharging air from both sides to avoid direct airflow onto the user. The cabinet-type indoor unit 1 may further include a casing 10, an air duct frame 20, and a cross-flow fan 40.

[0037] The housing 10 protects the entire cabinet-type indoor unit 1, and the rear side of the housing 10 is provided with an air inlet grille 12, on which a heat exchange airflow inlet is formed, and the front side of the housing 10 is provided with an air outlet 142.

[0038] The air duct frame 20 is disposed inside the housing 10. A heat exchange air duct 222 is formed on the air duct frame 20, and the heat exchange air duct 222 has an air inlet side open towards the heat exchange airflow inlet and an air outlet side open towards the air outlet 142. The air duct frame 20 also has an air outlet duct 224 connecting the air outlet side and the air outlet 142 to guide the heat exchange airflow in the heat exchange air duct 222 to the air outlet 142. Multiple sway vanes 226 may also be provided in the air outlet duct 224 to adjust the direction of the heat exchange airflow by swinging up and down.

[0039] The indoor unit heat exchanger 30 is installed on the air duct frame 20 and covers the heat exchange air duct 222 to exchange heat with the air drawn into the casing 10 from the heat exchange airflow inlet. The air after heat exchange is discharged into the room through the air outlet side of the air duct frame 20 and the air outlet 142 of the casing 10 to achieve cooling or heating.

[0040] A cross-flow fan 40 is installed horizontally inside the heat exchange duct 222 to facilitate indoor airflow from the heat exchange airflow inlet into the casing 10 to exchange heat with the indoor unit heat exchanger 30, and finally exhaust it from the air outlet 142.

[0041] See Figures 1 to 8 In some embodiments, the housing 10 also has an air outlet front wall 14, and an air outlet 142 is disposed in the transverse middle of the air outlet front wall 14. The air outlet 142 may be an elongated strip extending along the height direction of the housing 10, so as to make full use of the shape of the housing 10 and obtain a larger air outlet area.

[0042] The indoor unit 1 of the cabinet air conditioner may also include an air outlet grille 50, two first air guide plates 60, and two second air guide plates 62. The air outlet grille 50 may be provided with vents to allow the heat exchange airflow discharged from the air outlet 142 to pass through.

[0043] The air outlet grille 50 has a main body surface 510 and two side end surfaces 520. The main body surface 510 is disposed facing the ground in front of the air outlet front wall 14. The main body surface 510 has a ventilation area 512 located directly in front of the air outlet 142 and two closed areas 514 formed on both sides of the ventilation area 512. The two side end surfaces 520 are respectively formed on the outer edges of the two closed areas 514 and connected to the two side edges of the air outlet front wall 14.

[0044] The two first air guide plates 60 can move closer to each other or further away from each other along the inner surface of the main body surface 510, and the two air guide plates have a closed position that closes the ventilation area 512 laterally and side by side, and an open position that avoids the ventilation area 512 to both sides. The two second air guide plates 62 can rotate around the two side edges adjacent to the air outlet 142.

[0045] See Figure 3In some embodiments, the two first air guide plates 60 are configured such that the combined shape after they are horizontally spliced ​​is adapted to the shape and size of the ventilation area 512, so that the two first air guide plates 60 can be horizontally spliced ​​together to close and seal the ventilation area 512.

[0046] See Figure 5 In addition, the lateral width of each first air guide plate 60 is set to be no greater than the lateral width of the corresponding closed area 514, so that the first air guide plate 60 completely avoids the ventilation area 512 when it is in the open position.

[0047] See Figure 3 In some embodiments, the two second air guide plates 62 are also configured such that the combined shape after they are horizontally spliced ​​is adapted to the shape and size of the air outlet 142, so that the two second air guide plates 62 can jointly close the air outlet 142 by rotating.

[0048] See Figure 4 Furthermore, the lateral width from the edge of the front wall 14 to the edge of the air outlet 142 is set to be no less than the width of the second air guide plate 62. That is to say, the lateral distance on both sides of the air outlet 142 should be sufficient for the second air guide plate 62 to fully unfold, so as to completely avoid the passage between the air outlet 142 and the side end face 520.

[0049] See Figure 4 In some usage scenarios, the two first air guide plates 60 are in the closed position, and the two second air guide plates 62 are rotated to be attached to the front wall 14 of the air outlet, so as to guide the heat exchange airflow through the side end face 520 for discharge using the first air guide plates 60 and the closed area 514.

[0050] In other words, in this scenario, the two first air guide plates 60 are moved to a horizontally joined combination to seal off the ventilation area 512. Thus, the entire main body surface 510 is sealed off by the two first air guide plates 60 and the two sealed areas 514, preventing the heat exchange airflow from escaping forward. Each second air guide plate 62 rotates 180° after closing the air outlet 142 and attaches to the front surface of the air outlet front wall 14, allowing the heat exchange airflow discharged from the air outlet 142 to be discharged forward to the main body surface 510. Since the main body surface 510 is completely sealed, its two sides form two side end faces 520 for ventilation. Therefore, the heat exchange airflow discharged from the air outlet 142 is discharged forward to the rear of the main body surface 510, and then, guided laterally by the first air guide plates 60 and the sealed areas 514, is discharged from the two side end faces 520 respectively, achieving side airflow and preventing direct airflow to the user.

[0051] In some usage scenarios, the two first air guides 60 are in the open position, and at least one second air guide 62 is rotated so that one end away from the pivot axis is behind the ventilation area 512, so as to guide the heat exchange airflow out of the ventilation area 512.

[0052] See Figure 5 In some specific application scenarios, the two first air guide plates 60 are in the open position, and the two second air guide plates 62 are rotated so that one end away from the pivot axis is behind the ventilation area 512. In this way, the two second air guide plates 62 can form an air outlet channel that extends roughly back and forth between the air outlet 142 and the ventilation area 512 by rotating. The heat exchange airflow discharged from the air outlet 142 can be almost entirely discharged to the ventilation area 512 along this air outlet channel, and finally discharged forward into the indoor environment through the ventilation area 512. This can achieve forward convergence and air delivery.

[0053] See Figure 6 In some other usage scenarios, when the two first air guides 60 are in the open position, the second air guide 62 on the right rotates so that the end away from the pivot axis is behind the ventilation area 512, while the second air guide 62 on the left rotates so that it is attached to the front wall 14 of the air outlet. In this way, part of the heat exchange airflow discharged from the air outlet 142 is guided by the second air guide 62 on the right to be discharged forward from the ventilation area 512 into the indoor environment, and the other part can be guided by the closed area 514 on the left to be discharged to the left side end face 520, and then discharged into the indoor environment through the left side end face 520, so as to achieve forward and left air outlet and avoid direct blowing to the user on the right.

[0054] See Figure 7 Of course, in some other usage scenarios, when the two first air guides 60 are in the open position, the second air guide 62 on the left rotates so that the end away from the pivot axis is behind the ventilation area 512, while the second air guide 62 on the right rotates so that it is attached to the front wall of the air outlet 14, so as to achieve forward and right air outlet and avoid direct airflow to the user on the left.

[0055] Therefore, it can be seen that the cabinet-type air conditioner indoor unit 1 of the present invention, through the adjustment of the two first air guide plates 60 and the two second air guide plates 62, can achieve at least four anti-direct-blow air outlet modes, namely: air outlet from both sides and no air outlet from the front. Figure 4 The air outlet shown is designed to prevent direct airflow to the front user, and the air outlet on both sides of the front is not exposed to airflow. Figure 5 The diagram shows simultaneous protection against direct airflow to both left and right users, with airflow directed forward and to the left while no airflow is directed to the right. Figure 6 The airflow is directed to the right side (as shown), with airflow exiting to the front and right sides but not to the right side. Figure 7 (The image shows the protection against direct airflow to the left-side user).

[0056] See Figure 8In some embodiments, the lateral width of the ventilation area 512 is set to be the same as the lateral width of the air outlet 142, and the ventilation area 512 and the air outlet 142 are directly opposite each other. The width of each second air guide plate 62 is set to be the same as the distance between the main body surface 510 and the front wall 14 of the air outlet.

[0057] In other words, since the second air guide plate 62 rotates around the two side edges adjacent to the air outlet 142, the two second air guide plates 62 can rotate to make the end away from the pivot axis abut against the lateral side edges of the ventilation area 512 when air is sent forward. The air outlet channel formed in this way is almost sealed, and the heat exchange airflow will not pass through from both sides, which further improves the effect of concentrated air delivery.

[0058] See Figure 5 In some other embodiments, the orthographic projection of the air outlet 142 onto the ventilation area 512 is located inside the ventilation area 512. In this embodiment, the width of the second air guide plate 62 can also be set to be the same as the distance between the main body surface 510 and the air outlet front wall 14. In this embodiment, if a sealed air outlet channel is to be formed, the second air guide plate 62 needs to extend back and forth, so that the end of the second air guide plate 62 away from the pivot axis needs to abut against the rear surface of the ventilation area 512. If the ends of the two second air guide plates 62 away from the pivot axis abut against the lateral edges of the ventilation area 512, the front end of the formed air outlet channel may leak air to both sides, but it can still basically achieve the effect of forward converging air delivery.

[0059] See Figure 9 In some embodiments, the two first air guide plates 60 may be driven by a first drive mechanism. Each first drive mechanism may include a first motor 710, a transmission gear 712, and a rack 714. The first motor 710 is fixed to the housing 10, the transmission gear 712 is fixed to the output shaft of the first motor 710, the transmission gear 712 meshes with the rack 714, and the rack 714 is arranged along the width direction of the first air guide plate 60.

[0060] In some specific embodiments, the housing 10 defines a mounting cavity at the top or bottom of the air outlet front wall 14, and the first drive mechanism can be disposed within the mounting cavity. The first motor 710 is detachably fixed to the wall of the mounting cavity adjacent to the air outlet front wall 14, the transmission gear 712 is disposed within the mounting cavity and mounted on the output shaft of the first motor 710, and the rack 714 can be directly formed on the first air guide plate 60, or mounted on the first air guide plate 60 through a connector. When the first motor 710 rotates, it drives the rack 714 to translate through the transmission gear 712, thereby controlling the first air guide plate 60 to move.

[0061] See Figure 10In some embodiments, the two second air guide vanes 62 may be driven by a second drive mechanism. Each second drive mechanism may include a second motor 720, a driving gear 722, and a driven gear 724. The motor 72 is fixed to the housing 10, the driving gear 722 is fixed to the output shaft of the motor 72, the driven gear 724 meshes with the driving gear 722, and the driven gear 724 is connected to the rotation shaft of the second air guide vane 62.

[0062] In some specific embodiments, the first motor 710 and the second motor 720 can be detachably fixed to the wall of the mounting cavity near the air outlet front wall 14. The driving gear 722 is mounted on the output shaft of the motor 72. The driven gear 724 can be mounted in the mounting cavity through a rotating shaft and maintain meshing with the driving gear 722. The rotating shaft of the driven gear 724 can pass through the mounting cavity and extend to the position between the air outlet front wall 14 and the main body surface 510 so as to connect with the rotating shaft of the top or bottom of the second air guide plate 62.

[0063] Furthermore, the diameter of the driving gear 722 is set to be smaller than the diameter of the driven gear 724. That is to say, the transmission method of this drive mechanism is that the small gear drives the large gear, which can achieve a speed reduction effect and make the operation of the air guide plate 60 more stable.

[0064] In some specific embodiments, both the first motor 710 and the second motor 720 can be configured as stepper motors. The angular displacement of the stepper motor can be set before leaving the factory. Multiple angular displacements can be pre-configured for the stepper motor before leaving the cabinet air conditioner indoor unit 1. Users can control the stepper motor through voice control / remote control or other means to achieve aggregated air supply or decentralized air supply.

[0065] See Figure 1 In some embodiments, the housing 10 may further include an exterior wall 16. The exterior wall 16 is configured as the front exterior wall 16 of the cabinet-type air conditioner indoor unit 1, which is located at the front of the housing 10. The air supply wall may be arranged so that the exterior wall 16 is further back. Since the grille is located in front of the air supply wall and has a side end face 520, the distance between the air supply wall and the exterior wall 16 can be used to accommodate the side end face 520. This allows the main body surface 510 of the air outlet grille 50 to protrude from the exterior wall 16, affecting the aesthetics of the cabinet-type indoor unit 1.

[0066] In some embodiments, the outline of the main body surface 510 of the air vent grille 50 is adapted to and flush with the outline of the exterior front wall 16. For example... Figure 11 As shown, for example, when the exterior wall surface 16 is a convex arc surface, then the main body surface 510 should be set as a convex arc surface. Another example, such as... Figure 1 , Figure 12As shown, when the exterior wall 16 is flat, then the main body surface 510 and the side end surface 520 should also be flat. The above examples are only adaptive combinations for some scenarios. In actual use, there are of course other shapes of housing 10, which will not be illustrated in this article.

[0067] like Figure 1 , Figure 11 As shown, in some embodiments, the lateral width of the main body surface 510 is set to be the same as the lateral width of the air outlet front wall 14, or as... Figure 12 As shown, the lateral width of the main body surface 510 is set to be smaller than the lateral width of the front wall 14 of the air outlet.

[0068] When the lateral width of the main body surface 510 is set to be the same as the lateral width of the front wall 14, the two side end surfaces 520 can extend forward and backward to connect with the two sides of the front wall 14. When the lateral width of the main body surface 510 is set to be less than the lateral width of the front wall 14, the two side end surfaces 520 can extend diagonally to connect with the two sides of the front wall 14.

[0069] See Figure 13 The air conditioner 1 may also include a controller 800. The controller 800 may include a processor 810 and a memory 820. The memory 920 has a machine-executable program 822. When the processor 910 executes the machine-executable program 822, an air supply control method for the air conditioner 1 can be implemented. See also Figure 14 The air supply control method may include the following steps:

[0070] Step S910: Receive a signal from the user to activate the anti-direct-blow mode. This signal can be a voice signal from the user or an electrical signal transmitted via the remote control. For example, the remote control has an anti-direct-blow mode button. When the user presses the anti-direct-blow button, the air conditioner enters the anti-direct-blow mode. Pressing the anti-direct-blow button again exits the automatic anti-direct-blow mode and restores normal airflow logic.

[0071] Step S920: Detect the presence of the user in three preset areas within the indoor environment where the indoor unit is located. These three preset areas are the area in front of, to the left of, and to the right of the cabinet air conditioner indoor unit 1. In this step, the user's position can be detected using a human infrared sensor installed on the casing 10.

[0072] Step S930: Based on the existing conditions, control the first air guide plate 60 and the second air guide plate 62 to adjust the airflow direction of the heat exchange airflow, so as to stop the airflow to the preset area where the user is located, thereby realizing the anti-direct blowing function. For example, when there is a user in the front area, the airflow to the front area can be stopped; when there is a user in the left area, the airflow to the left area can be stopped; when there is a user in the right area, the airflow to the right area can be stopped, thus realizing the anti-direct blowing function.

[0073] Specifically, when a user is detected in the area ahead, the two first air guide vanes 60 are moved to the closed position to cut off the path of airflow to the area ahead. In this scenario, the two second air guide vanes 62 can be rotated to attach to the front wall 14 of the air outlet, so as to guide the heat exchange airflow through the two side end faces 520 for discharge using the first air guide vanes 60 and the closed area 514.

[0074] When a user is detected in the left-side area, the two first air guide vanes 60 are moved to the open position, causing the second air guide vane 62, which is closer to the left-side area, to rotate so that the end away from the pivot axis is behind the ventilation area 512, thereby cutting off the air supply path to the left-side area. In this scenario, the second air guide vane 62, which is farther from the left-side area, can either be attached to the front wall 14 to simultaneously supply air to the front and right-side areas, or it can rotate so that the end away from the pivot axis is behind the ventilation area 512 to supply air only to the front area.

[0075] When a user is detected in the right-side area, the two first air guide vanes 60 are moved to the open position, causing the second air guide vane 62, which is closer to the right-side area, to rotate so that the end away from the pivot axis is behind the ventilation area 512, thereby cutting off the air supply path to the right-side area. In this scenario, the second air guide vane 62, which is farther from the right-side area, can either be attached to the front wall 14 to simultaneously supply air to the front and left-side areas, or it can rotate so that the end away from the pivot axis is behind the ventilation area 512 to supply air only to the front area.

[0076] In some embodiments, when no users are detected in any area, the two first air guide vanes 60 are moved to the open position, and the two second air guide vanes 62 are respectively attached to the front air outlet wall 14 to deliver air to the front area, the left area and the right area at the same time.

[0077] Therefore, those skilled in the art should recognize that although numerous 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 invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A cabinet-type air conditioner indoor unit, comprising: The casing has an air outlet front wall, and an air outlet that opens forward is provided in the transverse middle part of the air outlet front wall; The air outlet grille has a main body surface and two side end surfaces. The main body surface is located opposite to the front of the air outlet front wall. The main body surface has a ventilation area in front of the air outlet and two closed areas formed on both sides of the ventilation area. The two side end surfaces are respectively formed on the outer edges of the two closed areas and are connected to the two side edges of the air outlet front wall. Two first air guide plates are configured to move closer to each other or further away from each other along the inner surface of the main body, and the two first air guide plates have a closed position that closes the ventilation area laterally and side by side, and an open position that avoids the ventilation area to both sides. Two second air guide vanes are configured to rotate around two side edges immediately adjacent to the air outlet; the indoor unit of the cabinet air conditioner is configured as follows: The two first air guide vanes are in the closed position, and the two second air guide vanes are rotated to attach to the front wall of the air outlet, so that the heat exchange airflow is guided through the side end faces on both sides and discharged using the first air guide vanes and the closed area; or, The two first air guides are in the open position, and at least one second air guide is rotated so that one end away from the pivot axis is behind the ventilation area, so as to guide the heat exchange airflow out of the ventilation area; The lateral width of each of the first air guide plates is set to be no greater than the lateral width of the enclosed area on the corresponding side; The lateral width from the edge of the front wall of the air outlet to the edge of the air outlet is set to be no less than the width of the second air guide plate; The lateral width of the ventilation area is set to be the same as the lateral width of the air outlet, and the ventilation area and the air outlet are directly opposite each other. The width of each second air guide plate is set to be the same as the distance between the main body surface and the air outlet front wall; The orthogonal projection of the air outlet onto the ventilation area is located inside the ventilation area.

2. The indoor unit of the cabinet-type air conditioner according to claim 1 further includes: Two sets of first drive mechanisms are used to drive the two first air guide plates to rotate respectively. Each set of first drive mechanisms includes a first motor, a transmission gear and a rack. The first motor is fixed to the housing, the transmission gear is fixed to the output shaft of the first motor, the transmission gear meshes with the rack, and the rack is arranged along the width direction of the first air guide plate.

3. The indoor unit of the cabinet-type air conditioner according to claim 1 further includes: Two sets of second drive mechanisms are used to drive the two second air guide plates to rotate respectively. Each set of second drive mechanisms includes a second motor, a driving gear and a driven gear. The second motor is fixed to the housing, the driving gear is fixed to the output shaft of the second motor, the driven gear meshes with the driving gear, and the driven gear is connected to the rotation shaft of the second air guide plate.

4. The cabinet-type air conditioner indoor unit according to claim 1, wherein, The housing also has an exterior front wall, which is positioned further forward than the air outlet front wall. The outline of the exterior front wall is adapted to the outline of the main body surface, and the exterior front wall is flush with the main body surface.

5. The cabinet-type air conditioner indoor unit according to claim 4, wherein, The front wall of the exterior is configured as a flat surface or a convex arc surface.

6. A method for controlling the air supply of an air conditioner, wherein the air conditioner includes a cabinet-type indoor unit according to any one of claims 1 to 5; The air supply control method includes: Receives a signal from the user to activate the anti-direct-blow mode; The presence of a user in three preset areas within the indoor environment where the indoor unit is located is detected. The three preset areas are the area in front of the cabinet air conditioner indoor unit, the area to the left, and the area to the right. Based on the aforementioned situation, the first and second air guide plates are controlled to adjust the airflow direction of the heat exchange airflow, so as to stop the airflow to the preset area where the user is located, thereby achieving the anti-direct blowing function.

7. The air supply control method according to claim 6, wherein, The step of controlling the airflow direction of the heat exchange airflow by adjusting the first air guide plate and the second air guide plate according to the aforementioned situation further includes: When a user is detected in the area in front, the two first air guide vanes are moved to the closed position to cut off the path of airflow to the area in front. When a user is detected in the left area, the two first air guides are moved to the open position, and the second air guide near the left area is rotated so that the end away from the pivot axis is behind the ventilation area, so as to cut off the air supply path to the left area. When a user is detected in the right-side area, the two first air guides are moved to the open position, and the second air guide near the right-side area is rotated so that the end away from the pivot axis is behind the ventilation area, thereby cutting off the air supply path to the right-side area.

8. The air supply control method according to claim 6, wherein, The step of controlling the airflow direction of the heat exchange airflow by adjusting the first air guide plate and the second air guide plate according to the aforementioned situation further includes: When no users are detected in any area, the two first air guides are moved to the open position, and the two second air guides are attached to the front wall of the air outlet to deliver air to the front area, and the two first air guides are used to deliver air to the left and right areas respectively.

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