An external air deflector assembly and a wall-mounted air conditioner indoor unit

Abstract

The application provides an external air guide door assembly and a wall-mounted air conditioner indoor unit, the external air guide door assembly comprises: a first external air guide plate, having a first air guide plate body in a strip shape, a limiting track is arranged on a first end plate at both ends of the first air guide plate body; a second external air guide plate, capable of extending or retracting relative to the width direction of the first air guide plate body under the action of a second driving device; a connecting arm, connected with the wall-mounted air conditioner indoor unit through a first driving device and capable of being driven to rotate by the first driving device; and a sliding arm, integrated with the first external air guide plate and capable of sliding relative to the connecting arm. The external air guide door assembly can provide more air outlet control options, adjust the air outlet shape and direction according to needs, meet different needs of users for indoor airflow, has a compact structure and realizes accurate and flexible control of air supply of the air conditioner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioning equipment, in particular to an external air guide door assembly and a wall-mounted air conditioner indoor unit. BACKGROUND

[0002] At present, with the improvement of people's living quality, the use rate of air conditioners is also gradually improved, and the air conditioner is a device capable of adjusting the indoor environment temperature.

[0003] Air flows over a heat exchanger arranged in the air conditioner to be cooled or heated. The cooled or heated air is then sent to the room through the air outlet. Therefore, the air inlet is generally arranged at the top of the air conditioner shell, and the air outlet is usually arranged at the lower part of the front side (which can be called "front panel") of the air conditioner shell. When the air conditioner operates in the cooling mode, if a person is close to the air conditioner, the cold wind blown from the air conditioner will directly blow on the person, which can easily cause the person's discomfort.

[0004] However, the conventional wall-mounted air conditioner indoor unit generally has a single air deflector assembly installed thereon, and the air deflector assembly has poor effect on adjusting the air outlet direction, and can only adjust all air outlet flows to one direction, which seriously affects the user comfort. SUMMARY

[0005] Therefore, the present application aims to provide an external air guide door assembly and a wall-mounted air conditioner indoor unit to solve at least one of the above technical problems.

[0006] To achieve the above-mentioned purposes, the technical scheme of the present application is as follows:

[0007] An external air guide door assembly, comprising:

[0008] A first external air deflector having a first air deflector body in a strip shape, a limiting track being arranged on a first end plate at both ends of the first air deflector body;

[0009] A second external air deflector capable of extending or retracting relative to the width direction of the first air deflector body under the action of a second driving device;

[0010] A connecting arm connected with the wall-mounted air conditioner indoor unit through a first driving device and capable of being driven to rotate by the first driving device;

[0011] A sliding arm integrated with the first external air deflector and capable of sliding relative to the connecting arm.

[0012] Further, the second external air deflector comprises a second air deflector body, a plurality of air outlet holes are arranged on the second air deflector body, and at least one first connecting shaft is arranged at opposite ends of the second air deflector body in the length direction, and the first connecting shaft can be driven to slide in the limiting track by the second driving device.

[0013] Further, the first external air deflector is arranged in a circular arc shape in the width direction, the limiting track is arranged in an arc shape on the first end plate of the first air deflector body, and the projection of the second external air deflector on the first external air deflector is smaller than the external contour of the first external air deflector.

[0014] Further, the limiting track comprises a track limiting rib plate, a first sliding limiting groove is arranged in the track limiting rib plate, the first connecting shaft of the second external air deflector passes through the first sliding limiting groove and is connected with and driven to slide along the first sliding limiting groove by the second driving device.

[0015] Further, the second driving device comprises a transmission belt and a second driving motor, the transmission belt is arranged in a closed shape, a first rotating wheel and a second rotating wheel are arranged on opposite sides of the transmission belt respectively, the transmission belt can rotate along the first rotating wheel and the second rotating wheel, the first rotating wheel and the second rotating wheel are rotatably connected with a first connecting hole and a second connecting hole on the first end plate through a first rotating shaft and a second rotating shaft respectively, and the first connecting hole and the second connecting hole are arranged on opposite sides of the first sliding limiting groove.

[0016] Further, the second driving motor is arranged between the first rotating wheel and the second rotating wheel, the transmission belt comprises an upper belt and a lower belt, the upper belt and the lower belt are respectively located on opposite sides of the first sliding limiting groove in the length direction and rotate along the length direction, the second driving motor is located on a side of the upper belt away from the lower belt, a connecting piece is arranged on the lower belt, and the connecting piece is connected with the first connecting shaft.

[0017] Further, the connecting piece comprises a first connecting sleeve, limiting ribs are arranged on opposite sides of the first connecting sleeve, the limiting ribs are connected with the lower belt of the transmission belt through connecting ribs, and the limiting ribs can be limited by the first rotating shaft and the second rotating shaft when moving to opposite ends of the first sliding limiting groove.

[0018] Further, the connecting arm comprises a first connecting plate body, a second connecting sleeve is arranged at one end of the first connecting plate body, and the second connecting sleeve can be driven by the first driving device.

[0019] Further, a guide rail is arranged on the first connecting plate body, the sliding arm comprises a sliding part and a guide vane connecting part, the sliding part comprises a sliding guide groove, and the sliding guide groove can slide along the guide rail under the action of the transmission lead screw and the adjusting nut.

[0020] Compared with the prior art, the external guide vane assembly has the following advantages:

[0021] (1) The external guide vane assembly disclosed in the application changes the air outlet adjustment contour of the external guide vane assembly through the structure of the double-layer first external guide vane and the second external guide vane, so that the user can adjust the shape and direction of the air outlet as needed to better meet the requirements of indoor temperature and air circulation. In addition, more customization options are provided, and the user can adjust the air outlet mode and direction according to specific needs and preferences, thereby improving user satisfaction and having high universality and being widely applicable to various types of wall-mounted air conditioner indoor units.

[0022] (2) The external guide vane assembly can provide more air outlet control options, adjust the air outlet shape and direction as needed to meet different user needs for indoor airflow, and has a compact structure to achieve precise and flexible control of air supply of the air conditioner.

[0023] Another object of the application is to provide a wall-mounted air conditioner indoor unit, wherein an air outlet is arranged on the wall-mounted air conditioner indoor unit, a small guide vane for adjusting the guide direction of the air outlet or closing the air outlet is arranged at the position of the air outlet, and an external guide vane assembly as described above is further arranged on the wall-mounted air conditioner indoor unit. The external guide vane assembly comprises two connecting arms, namely a first connecting arm and a second connecting arm, and two sliding arms are correspondingly arranged, namely a first sliding arm and a second sliding arm. The first sliding arm can slide on the first connecting arm, and the second sliding arm can slide on the second connecting arm. The first sliding arm and the second sliding arm are respectively located at two ends of the length direction of the first external guide vane.

[0024] The wall-mounted air conditioner indoor unit and the above-mentioned external guide vane assembly have the same advantages as the prior art, and will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the present application, and the explanations provided over the drawings serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0026] Figure 1 FIG. 1 is a front view of an external guide vane assembly of a wall-mounted air conditioner indoor unit according to an embodiment of the present application in an air inlet grille position;

[0027] Figure 2 The side view structural schematic diagram of the outdoor air guide door assembly of the wall-mounted air conditioner indoor unit in the embodiment of the present application is in the open state of the air inlet grid position;

[0028] Figure 3 The side view structural schematic diagram of the outdoor air guide door assembly of the wall-mounted air conditioner indoor unit in the embodiment of the present application is in the air outlet position;

[0029] Figure 4 The front view structural schematic diagram of the outdoor air guide door assembly of the wall-mounted air conditioner indoor unit in the embodiment of the present application is in the air outlet position and the small air guide door is in the closed state;

[0030] Figure 5 The front view structural schematic diagram of the outdoor air guide door assembly of the wall-mounted air conditioner indoor unit in the embodiment of the present application is in the air outlet position and the small air guide door is in the open state;

[0031] Figure 6 The side view structural schematic diagram of the outdoor air guide door assembly in the embodiment of the present application is shown;

[0032] Figure 7 The side view structural schematic diagram of the second outdoor air guide door in the outdoor air guide door assembly in the embodiment of the present application is in the open state;

[0033] Figure 8 The side view structural schematic diagram of the first outdoor air guide door in the embodiment of the present application is shown;

[0034] Figure 9 The structure schematic diagram of the first outdoor air guide door in the embodiment of the present application is shown; Figure 8 The local enlarged structural schematic diagram of the A part in the embodiment of the present application is shown;

[0035] Figure 10 The structure schematic diagram of the inner side of the limiting track of the first outdoor air guide door in the embodiment of the present application is shown;

[0036] Figure 11 The structure schematic diagram of the second driving device provided on the first outdoor air guide door in the embodiment of the present application is shown;

[0037] Figure 12 The structure schematic diagram of the second driving device in the embodiment of the present application is shown;

[0038] Figure 13 The structure schematic diagram of the second outdoor air guide door in the embodiment of the present application is shown;

[0039] Figure 14 The local exploded structural schematic diagram of the connection assembly of the second outdoor air guide door and the connecting piece of the second driving device in the embodiment of the present application is shown;

[0040] Figure 15A side view structure schematic diagram of the connecting arm according to the embodiment of the present application;

[0041] Figure 16 A side view structure schematic diagram of the connecting arm according to the embodiment of the present application;

[0042] Figure 17 A side view structure schematic diagram of the connecting arm according to the embodiment of the present application;

[0043] Figure 18 A side view structure schematic diagram of the connecting arm according to the embodiment of the present application;

[0044] BRIEF DESCRIPTION OF THE DRAWINGS

[0045] 100 - wall-mounted indoor unit of air conditioner; 200 - external air guide door assembly; 1 - air outlet; 2 - small air guide plate; 3 - connecting arm; 301 - first connecting plate body; 302 - second connecting sleeve; 303 - guide rail; 304 - first containing groove; 305 - adjusting nut; 31 - first connecting arm; 32 - second connecting arm; 4 - first driving device; 5 - sliding arm; 51 - first sliding arm; 52 - second sliding arm; 501 - sliding part; 5011 - sliding guide groove; 5012 - third driving motor; 5013 - transmission screw; 502 - air guide plate connecting part; 5021 - second connecting plate body; 5022 - third connecting hole; 6 - first external air guide plate; 601 - first air guide plate body; 602 - first end plate; 603 - limiting rail; 6031 - rail limiting rib plate; 6032 - first sliding limiting groove; 6033 - first connecting hole; 6034 - second connecting hole; 6035 - end cap; 6036 - first avoiding groove; 6037 - mounting sink; 604 - second connecting shaft; 7 - second external air guide plate; 701 - second air guide plate body; 702 - air outlet hole; 703 - first connecting shaft; 8 - second driving device; 801 - transmission belt; 8011 - upper layer belt; 8012 - lower layer belt; 802 - first rotating wheel; 8021 - first rotating shaft; 803 - second rotating wheel; 8031 - second rotating shaft; 804 - second driving motor; 805 - connecting piece; 8051 - first connecting sleeve; 8052 - limiting rib; 8053 - connecting rib. DETAILED DESCRIPTION

[0046] In order to make the technical means and achieve the purpose and effect of the present application easy to understand, the embodiments of the present application are described in detail below in combination with specific drawings.

[0047] It should be noted that all the terms indicating direction and position in the present application, such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer", "top", "low", "transverse", "longitudinal", "center", etc., are only used to explain the relative position relationship, connection condition, etc. between components in a certain state (as shown in the drawings), and are only for the convenience of describing the present application, and therefore cannot be understood as a limitation on the present application. In addition, the description of "first", "second", etc. in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features.

[0048] In the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] Embodiment 1

[0051] As Figures 1-18 shown, the present application discloses an external air guide door assembly, comprising:

[0052] The first external air guide plate 6 has a first air guide plate body 601 in the shape of a long strip, and a limiting track 603 is arranged on the first end plate 602 at both ends of the first air guide plate body 601;

[0053] The second external air guide plate 7 can be extended or retracted relative to the width direction of the first air guide plate body 601 under the action of the second driving device 8;

[0054] The connecting arm 3 is connected with the wall-mounted air conditioner indoor unit 100 through the first driving device 4 and can be driven to rotate by the first driving device 4;

[0055] The sliding arm 5 is integrated with the first external air deflector 6 and can slide relative to the connecting arm 3.

[0056] The application discloses an external air deflector assembly. The first external air deflector 6 and the second external air deflector 7 are double-layer structures. The second external air deflector 7 can extend or retract relative to the first external air deflector 6 under the action of the second driving device 8, so as to change the air outlet adjustment contour and adjustment mode of the external air deflector assembly. In addition, the second external air deflector 7 and the first external air deflector 6 are connected to the sliding arm 5 and can slide relative to the connecting arm 3, so as to change the positions of the first external air deflector 6 and the second external air deflector 7 relative to the air outlet of the wall-mounted air conditioner indoor unit 100, improve the air outlet adjustment mode, and the second external air deflector 7 and the first external air deflector 6 can rotate integrally with the connecting arm 3 and the sliding arm 5 under the action of the first driving device 4, so as to switch the direct blowing position at the air inlet grille and the air outlet of the wall-mounted air conditioner indoor unit. At the air inlet grille position of the wall-mounted air conditioner indoor unit, the second external air deflector 7 can cover the entire air inlet grille position by adjusting the position of the second external air deflector 7 relative to the first external air deflector 6. The first external air deflector 6 and the second external air deflector 7 change their positions relative to the first driving device 4 by sliding relative to the sliding arm 5 and the connecting arm 3, so as to ensure that the external air deflector assembly can be applied to various air conditioner structures and can also be used as an optional accessory for various types of wall-mounted air conditioner indoor units, so as to meet different needs of users.

[0057] The external air deflector assembly disclosed by the application changes the air outlet adjustment contour of the external air deflector assembly by the double-layer structure of the first external air deflector and the second external air deflector, so that the user can adjust the shape and direction of the air outlet according to needs, so as to better meet the requirements of indoor temperature and air circulation. In addition, more custom options are provided, and the user can adjust the air outlet mode and direction according to specific needs and preferences, so as to improve the user's satisfaction and have high universality, and can be widely applied to various types of air conditioner wall-mounted air conditioner indoor units.

[0058] As a preferred example of the application, the second external air deflector 7 comprises a second air deflector body 701, a plurality of air outlet holes 702 are arranged on the second air deflector body 701, at least one first connecting shaft 703 is arranged at opposite ends of the second air deflector body 701 in the length direction, and the first connecting shaft 703 can be driven to slide in the limiting track 603 by the second driving device 8. This design makes the air deflector assembly of the application provide more air outlet control options, adjust the air outlet shape and direction according to needs, so as to meet different needs of users for indoor air flow, and has a compact structure, so as to realize accurate and flexible control of air supply of the air conditioner.

[0059] As a preferred example of the present application, the first external air deflector 6 is provided in a circular arc shape in the width direction, the limiting track 603 is provided in an arc shape on the first end plate 602 of the first air deflector body 601, and the projection of the second external air deflector 7 on the first external air deflector 6 is smaller than the external contour of the first external air deflector 6. This arrangement helps to achieve more uniform air distribution, reduces the possibility of uneven air flow and direct blowing, and facilitates the formation of an arc-shaped limiting track 603 at the end of the first air deflector body 601, ensuring the smoothness and stability of the extension or retraction movement of the second external air deflector 7 relative to the first external air deflector 6 in the limiting track 603. At the same time, the second external air deflector 7 can be completely retracted into the first external air deflector 6, so that the first external air deflector 6 can be adjusted for air outlet alone, reducing the possibility of uneven air flow and interference, thereby improving the quality and comfort of indoor air circulation.

[0060] As a preferred example of the present application, the limiting track 603 includes a track limiting rib plate 6031, in which a first sliding limiting groove 6032 is provided, and the first connecting shaft 703 of the second external air deflector 7 passes through the first sliding limiting groove 6032 and is connected and driven by the second driving device 8 to slide along the first sliding limiting groove 6032. As an example of the present application, a detachable head cover 6035 is installed on one side of the track limiting rib plate 6031, which is used to cover and limit the travel of the first sliding limiting groove 6032, and a first avoiding groove 6036 is provided on the head cover 6035 for avoiding the extension and retraction movement of the second external air deflector 7.

[0061] This arrangement discloses a limiting track 603 structure, so that the second external air deflector 7 can move along a predetermined path when moving, ensuring that the second external air deflector 7 can accurately adjust the air outlet position and direction when operating, improving the efficiency of the air conditioning system and user experience.

[0062] As a preferred example of the present application, the second driving device 8 comprises a transmission belt 801 and a second driving motor 804, the transmission belt 801 is arranged in a closed manner, a first rotating wheel 802 and a second rotating wheel 803 are arranged on opposite sides of the transmission belt 801 respectively, the transmission belt 801 can rotate along the first rotating wheel 802 and the second rotating wheel 803, the first rotating wheel 802 and the second rotating wheel 803 are respectively connected with the first connecting hole 6033 and the second connecting hole 6034 on the first end plate 602 through the first rotating shaft 8021 and the second rotating shaft 8031, and the first connecting hole 6033 and the second connecting hole 6034 are arranged on opposite sides of the first sliding limiting groove 6032. This arrangement discloses a way that the transmission belt drives the second external air deflector 7 to extend or retract relative to the first external air deflector 6, which is compact in structure, stable in transmission, and ensures the system to operate within a safe range.

[0063] As a specific example of the present application, the second driving motor 804 is arranged between the first rotating wheel 802 and the second rotating wheel 803, the transmission belt 801 comprises an upper belt 8011 and a lower belt 8012, the upper belt 8011 and the lower belt 8012 are respectively located on opposite sides of the length direction of the first sliding limiting groove 6032 and tend to rotate along the length direction, the second driving motor 804 is located on the side of the upper belt 8011 away from the lower belt 8012, a connecting piece 805 is arranged on the lower belt 8012, and the connecting piece 805 is connected with the first connecting shaft 703. This arrangement further improves the reliability of the second driving device 8 driving the second external air deflector 7 to move, and realizes precise control of the movement position of the second external air deflector 7 relative to the first external air deflector 6.

[0064] As a preferred example of the present application, the connecting piece 805 comprises a first connecting sleeve 8051, limiting ribs 8052 are arranged on opposite sides of the first connecting sleeve 8051, the limiting ribs 8052 are connected with the lower belt of the transmission belt 801 through connecting ribs 8053, and when the limiting ribs 8052 move to opposite ends of the first sliding limiting groove 6032, they can be limited by the first rotating shaft 8021 and the second rotating shaft 8031.

[0065] This arrangement discloses a specific structure of the connecting piece 805, by arranging the limiting ribs 8052 on the connecting piece 805, the movement of the first connecting sleeve 8051 driving the second external air deflector 7 can only be carried out between the first rotating shaft 8021 and the second rotating shaft 8031, which ensures that the air deflector can reach a specific position when needed to meet the requirements of the system, reduces interference, and enhances the safety and controllability of the system.

[0066] As a preferred example of the present application, the connecting arm 3 comprises a first connecting plate body 301, a second connecting sleeve 302 is arranged at one end of the first connecting plate body 301, and the second connecting sleeve 302 can be driven by the first driving device 4. As a preferred example, the first driving device 4 is fixed on the end cover of the wall-mounted air conditioner indoor unit 100 by a connecting screw, and the connecting arm 3 is arranged outside the end cover of the wall-mounted air conditioner indoor unit 100.

[0067] The arrangement discloses a structure of the connecting arm 3, which can rotate relative to the wall-mounted air conditioner indoor unit 100, reduces the improvement of the existing wall-mounted air conditioner indoor unit, reduces the mold opening cost, and improves the universal applicability of the external air guide door assembly 200.

[0068] As a preferred example of the present application, a guide rail 303 is arranged on the first connecting plate body 301, the sliding arm 5 comprises a sliding part 501 and an air guide plate connecting part 502, the sliding part 501 comprises a sliding guide groove 5011, and the sliding guide groove 5011 can slide along the guide rail 303 under the action of a transmission screw rod 5013 and an adjusting nut 305.

[0069] The arrangement discloses a way in which the connecting arm 3 can support or guide the sliding movement of the sliding arm 5, thereby changing the positions of the first external air guide plate 6 and the second external air guide plate 7 relative to the air outlet, enriching the adjustment mode and working condition of the air outlet, improving the air outlet performance adjustment, and avoiding interference when the external air guide door assembly 200 rotates under the action of the first driving device 4, thereby further improving the universal applicability of the air guide door assembly 200.

[0070] As a preferred example of the present application, a third driving motor 5012 is arranged at one end of the sliding guide groove 5011 away from the first driving device 4, the third driving motor 5012 can drive the transmission screw rod 5013 to rotate, one end of the sliding guide groove 5011 close to the first driving device 4 is arranged in an open manner, the open end of the sliding guide groove 5011 is arranged outside the guide rail 303, a first accommodating groove 304 is arranged on the guide rail 303 close to the center, and the adjusting nut 305 is arranged in the first accommodating groove 304 away from the first driving device 4 through a rotating bearing.

[0071] The arrangement discloses a specific form in which the transmission screw rod 5013 and the adjusting nut 305 realize the movement of the sliding arm 5 relative to the connecting arm 3, ensures that the sliding part 501 slides smoothly and reliably on the guide rail 303 in a more accurate manner, is convenient to operate, and transmits stably, thereby better meeting the air outlet direction demand of users, improving the performance of the air conditioning system, and improving the comfort of users.

[0072] As an example of the present application, the air deflector connecting portion 502 is provided on the side of the sliding portion 501 away from the first driving device 4, the air deflector connecting portion 502 comprises a second connecting plate body 5021, a third connecting hole 5022 is provided on the second connecting plate body 5021, and the third connecting hole 5022 is in interference fit with the second connecting shaft 604 on the first external air deflector 6.

[0073] This arrangement further improves the stability of the connection between the first external air deflector 6 and the sliding arm 5 in the external air deflector assembly of the present application, ensures that the position of the air deflector cannot be easily deviated or loosened, and thus improves the accuracy and reliability of the outflow air deflection control of the first external air deflector 6 and the second external air deflector 7, and the structure is simple and reliable.

[0074] The external air deflector assembly 200 disclosed in the present application comprises two connecting arms 3, namely a first connecting arm 31 and a second connecting arm 32, and correspondingly, two sliding arms 5, namely a first sliding arm 51 and a second sliding arm 52, the first sliding arm 51 is capable of sliding on the first connecting arm 31, the second sliding arm 52 is capable of sliding on the second connecting arm 32, and the first sliding arm 51 and the second sliding arm 52 are respectively located at both ends of the first external air deflector 6 in the length direction. This arrangement ensures the accuracy and reliability of the position adjustment of the first external air deflector 6, more accurately guides the air flow to the desired area, provides better ventilation and air conditioning effect, and further improves the indoor air quality and comfort of the user.

[0075] As an example of the present application, the first sliding arm 51 and the second sliding arm 52 are respectively connected with the first end plate 602 at both ends of the first external air deflector 6, the projection position of the first end plate 602 on the sliding arm 5 is not greater than the external contour of the air deflector connecting portion 502 on the sliding arm 5, a mounting sunken portion 6037 is provided on the first end plate 602 close to the outer side wall of the sliding arm 5, and the second driving device 8 is installed at the position of the mounting sunken portion 6037 and can be covered by the air deflector connecting portion 502.

[0076] This arrangement ensures the integrity and aesthetics of the external air deflector assembly of the present application, and further improves the user experience.

[0077] The present application also discloses an air conditioner, comprising a wall-mounted air conditioner indoor unit 100, an air outlet 1 is provided on the wall-mounted air conditioner indoor unit 100, a small air deflector 2 for adjusting the air deflection direction of the air outlet or closing the air outlet 1 is provided at the position of the air outlet 1, and the external air deflector assembly 200 as described in the above embodiments is further provided on the wall-mounted air conditioner indoor unit 100.

[0078] The application also discloses a wall-mounted air conditioner indoor unit control method, comprising the following steps.

[0079] S1: turning on the wall-mounted air conditioner indoor unit, rotating the external air guide door assembly, and opening the air inlet grille;

[0080] S2: rotating the external air guide door assembly to the air outlet under the action of the first driving device, and opening the small air guide plate at the air outlet;

[0081] S3: judging whether to execute the direct blowing prevention function, if yes, entering S4, and if no, executing S5;

[0082] S4: adjusting the positions of the first external air guide plate and the second external air guide plate relative to the air outlet by controlling the working states of the second driving device and the third driving motor, and executing the direct blowing prevention control mode;

[0083] S5: continuing to rotate the external air guide door assembly under the action of the first driving device, rotating to the lower side of the wall-mounted air conditioner indoor unit, and executing the normal air outlet working condition of the wall-mounted air conditioner indoor unit;

[0084] S6: judging whether the wall-mounted air conditioner indoor unit receives a shutdown instruction, if yes, entering S7, and if no, executing the current operation;

[0085] S7: closing the small air guide plate at the air outlet, rotating the external air guide door assembly to the upper side of the wall-mounted air conditioner indoor unit and covering the air inlet grille.

[0086] As an example of the application, in step S1, the following contents are included:

[0087] S11: starting the work of the third driving motor, so that the sliding arm slides on the connecting arm to the side far away from the first driving device;

[0088] S12: driving the connecting arm, the sliding arm, the first external air guide plate and the second external air guide plate to rotate integrally to the extension direction of the air outlet by the first driving device.

[0089] As an example of the application, in step S11, the sliding arm slides on the connecting arm to the farthest end far away from the first driving device.

[0090] As an example of the application, in step S4, the direct blowing prevention control mode includes five working conditions.

[0091] Working condition one: the sliding arm moves on the connecting arm to the near end close to the first driving device, and the second external air guide plate faces the air outlet;

[0092] Case two: the sliding arm is near the middle of the connecting arm, and the first external air deflector is opposite to the air outlet;

[0093] Case three: the sliding arm is near the middle of the connecting arm, and the second external air deflector is opposite to the air outlet;

[0094] Case four: the sliding arm is at the farthest end of the connecting arm, and the first external air deflector is opposite to the air outlet;

[0095] Case five: the sliding arm is at the farthest end of the connecting arm, and the second external air deflector is opposite to the air outlet.

[0096] The five working conditions above gradually increase the anti-direct blowing air outlet effect, increase the control mode of anti-direct blowing, and improve the user experience.

[0097] As an example of the present application, in step S7, the following is included:

[0098] S71: the small air deflector closes the air outlet;

[0099] S72: the sliding arm slides to the farthest end of the connecting arm;

[0100] S73: the first driving device drives the connecting arm, sliding arm, first external air deflector, and second external air deflector to rotate integrally to the top of the wall-mounted air conditioner indoor unit;

[0101] S74: the second driving device starts to work, so that the second external air deflector extends beyond the first external air deflector;

[0102] S75: the first external air deflector and the second external air deflector slide towards the proximal end of the connecting arm under the action of the third driving motor, covering the air inlet grille;

[0103] S76: the wall-mounted air conditioner indoor unit is powered off.

[0104] On the basis of the structure improvement of the external air deflector assembly described in the above embodiments, the control program of the air outlet 1 of the wall-mounted air conditioner indoor unit 100 is optimized, and the relative position profile and air deflection angle of the first external air deflector 6 and the second external air deflector 7 are adjusted according to the working state, the efficiency of air flow is improved, the performance of the air conditioner is improved, more air outlet working conditions are provided, the user obtains a more comfortable and uniform air distribution environment, and the user experience is improved.

[0105] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An external air guide damper assembly, characterized in that, include: The first external air guide plate (6) has a long strip-shaped first air guide plate body (601), and a limiting track (603) is provided on the first end plate (602) at both ends of the first air guide plate body (601). The second external air guide plate (7) can slide along the limiting track (603) under the action of the second driving device (8) to extend or retract in the width direction relative to the first air guide plate body (601). The projection of the second external air guide plate (7) on the first external air guide plate (6) is smaller than the outer contour of the first external air guide plate (6). The connecting arm (3) is connected to the wall-mounted air conditioner indoor unit (100) via the first drive device (4) and can be driven to rotate by the first drive device (4); The sliding arm (5) is integrated with the first external air guide plate (6) and can slide relative to the connecting arm (3). The second external air guide plate (7) and the first external air guide plate (6) can rotate together with the connecting arm (3) and the sliding arm (5) under the action of the first driving device (4), and switch between the anti-direct blowing position at the air inlet grille and air outlet of the wall-mounted air conditioner indoor unit. The limiting track (603) includes a track limiting rib plate (6031), and a first sliding limiting groove (6032) is provided in the track limiting rib plate (6031). The first connecting shaft (703) of the second external air guide plate (7) passes through the first sliding limiting groove (6032) and is connected to the second driving device (8) and driven by it to slide along the first sliding limiting groove (6032).

2. The external air guide damper assembly according to claim 1, characterized in that, The second external air guide plate (7) includes a second air guide plate body (701), a plurality of air outlet holes (702) are provided on the second air guide plate body (701), and at least one first connecting shaft (703) is provided at opposite ends of the length direction of the second air guide plate body (701). The first connecting shaft (703) can be driven by the second driving device (8) to slide in the limiting track (603).

3. The external air guide damper assembly according to claim 2, characterized in that, The first external air guide plate (6) has an arc-shaped cross section in the width direction, and the limiting track (603) is arc-shaped on the first end plate (602) of the first air guide plate body (601).

4. The external air guide damper assembly according to claim 1, characterized in that, The second driving device (8) includes a transmission belt (801) and a second driving motor (804). The transmission belt (801) is enclosed. A first rotating wheel (802) and a second rotating wheel (803) are respectively arranged on opposite sides of the transmission belt (801). The transmission belt (801) can rotate along the first rotating wheel (802) and the second rotating wheel (803). The first rotating wheel (802) and the second rotating wheel (803) are rotatably connected to the first connecting hole (6033) and the second connecting hole (6034) on the first end plate (602) through the first rotating shaft (8021) and the second rotating shaft (8031), respectively. The first connecting hole (6033) and the second connecting hole (6034) are arranged on opposite sides of the first sliding limiting groove (6032).

5. The external air guide damper assembly according to claim 4, characterized in that, The second drive motor (804) is disposed between the first rotating wheel (802) and the second rotating wheel (803). The transmission belt (801) includes an upper belt (8011) and a lower belt (8012). The upper belt (8011) and the lower belt (8012) are respectively located on opposite sides of the length direction of the first sliding limiting groove (6032) and rotate along the trend of its length direction. The second drive motor (804) is located on the side of the upper belt (8011) away from the lower belt (8012). A connector (805) is provided on the lower belt (8012). The connector (805) is connected to the first connecting shaft (703).

6. The external air guide damper assembly according to claim 5, characterized in that, The connector (805) includes a first connecting sleeve (8051), and limiting ribs (8052) are provided on opposite sides of the first connecting sleeve (8051). The limiting ribs (8052) are connected to the lower belt of the transmission belt (801) through connecting ribs (8053). When the limiting ribs (8052) move to opposite ends of the first sliding limiting groove (6032), they can be limited by the first rotating shaft (8021) and the second rotating shaft (8031).

7. The external air guide damper assembly according to any one of claims 1, 2, 3, 4, 5, or 6, characterized in that, The connecting arm (3) includes a first connecting plate (301), and a second connecting sleeve (302) is provided at one end of the first connecting plate (301). The second connecting sleeve (302) can be driven by the first driving device (4).

8. The external air guide damper assembly according to claim 7, characterized in that, A guide rail (303) is provided on the first connecting plate (301). The sliding arm (5) includes a sliding part (501) and a guide plate connecting part (502). The sliding part (501) includes a sliding guide groove (5011). The sliding guide groove (5011) can slide along the guide rail (303) under the action of the transmission screw (5013) and the adjusting nut (305).

9. A wall-mounted air conditioner indoor unit, characterized in that, An air outlet (1) is provided on the indoor unit of the wall-mounted air conditioner. A small air guide plate (2) for adjusting the air outlet direction or closing the air outlet (1) is provided at the position of the air outlet (1). An external air guide door assembly as described in any one of claims 1 to 8 is also provided on the indoor unit of the wall-mounted air conditioner. The external air guide door assembly includes two connecting arms (3), namely a first connecting arm (31) and a second connecting arm (32). Correspondingly, two sliding arms (5) are provided, namely a first sliding arm (51) and a second sliding arm (52). The first sliding arm (51) can slide on the first connecting arm (31), and the second sliding arm (52) can slide on the second connecting arm (32). The first sliding arm (51) and the second sliding arm (52) are respectively located at both ends of the length direction of the first external air guide plate (6).

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