Hanging type air conditioner indoor unit

Abstract

The utility model discloses a hanging type air conditioner indoor unit, and belongs to the technical field of air conditioners. The indoor unit of the hanging type air conditioner comprises a shell, an air inlet and an air outlet. The shell comprises a base. The indoor heat exchanger and the cross-flow fan are arranged on the base; the cross-flow fan comprises an end cover; the outer ring piece is fixedly connected to the end cover; an external rotor motor includes: a stator; the rotor and the spacer ring are arranged outside the stator and embedded in the outer ring piece; the motor bracket is connected to the base and is used for mounting a stator; the first connecting rib is annularly arranged along the outer ring of the outer ring piece, and the first connecting rib is bent to form a first accommodating part with a first opening between the first connecting rib and the outer ring piece; and the annular rib is formed at one end, close to the cross-flow fan, of the motor bracket, and the free end of the annular rib extends into the first accommodating part, so that a labyrinth structure is formed between the motor bracket and the first accommodating part, and the safety protection level of the external rotor motor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a hanging type air conditioner indoor unit. Background Art

[0002] The housing of the indoor unit of the wall-mounted air conditioner at least includes an air inlet and an air outlet connected to the room. A cross-flow fan, an indoor heat exchanger and a drive motor are arranged inside the housing. The drive motor is connected to the cross-flow fan to drive the cross-flow fan to rotate. The cross-flow fan rotates to introduce indoor air from the air inlet into the housing, and after heat exchange in the indoor heat exchanger, it flows into the room from the air outlet.

[0003] The driving motor may be an outer rotor motor, and the rotor and stator of the outer rotor motor may be fixed on the base of the cross-flow fan and the housing, respectively. Due to the structural characteristics of the outer rotor motor, there must be a rotation gap between the stator and the rotor.

[0004] In the related art, the stator is usually installed on the base through the motor bracket, and there is a lack of a simple and effective dustproof and waterproof structure between the cross-flow fan and the motor bracket. When there is a lot of dust and lint in the room, impurities will enter the motor through the rotating gap between the motor bracket and the cross-flow fan, blocking the rotating gap between the stator and the rotor, affecting the rotation and making noise, or heat-seeking mosquitoes will enter the motor through the rotating gap between the motor bracket and the cross-flow fan, or condensation water will enter the motor through the rotating gap between the motor bracket and the cross-flow fan, causing a short circuit and posing a safety hazard. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end,

[0006] The utility model provides a hanging type air conditioner indoor unit, comprising:

[0007] A housing, the top and the front bottom of which are respectively provided with an air-conditioning air inlet and an air-conditioning air outlet, and the housing includes a base;

[0008] an indoor heat exchanger, disposed on the base, for performing heat exchange on the air in the shell;

[0009] A cross-flow fan is provided on the base and below the indoor heat exchanger; indoor airflow enters the housing through the air inlet of the air conditioner under the action of the cross-flow fan, and is output to the room through the air outlet of the air conditioner after heat exchange in the indoor heat exchanger, and the cross-flow fan includes an end cover;

[0010] An outer ring, one end of which is fixedly connected to the end cover;

[0011] An outer rotor motor comprising:

[0012] A rotor, nested inside the outer ring;

[0013] A stator is sleeved inside the rotor, and the stator and the rotor are spaced apart;

[0014] A motor bracket, connected to the base, for mounting the stator;

[0015] A first connecting rib is annularly arranged along the outer ring of the outer ring, and a first accommodating portion having a first opening is formed between the first connecting rib and the outer ring;

[0016] An annular rib is formed at one end of the motor bracket close to the cross-flow fan, and a free end of the annular rib passes through the first opening and extends into the first accommodating portion.

[0017] The wall-mounted air-conditioning indoor unit provided by the present technical solution forms a first accommodating portion between the outer ring member and the outer ring member by arranging a first connecting rib in an annular shape on the outer ring of the outer ring member, and the annular rib formed at one end of the motor bracket extends into the first accommodating portion, thereby effectively shielding the gap between the motor bracket and the outer ring member, so that a maze structure is formed between the motor bracket and the first accommodating portion, effectively blocking dust, impurities, mosquitoes, water vapor, etc. from entering the gap between the stator and the rotor, avoiding problems such as blockage that affects the rotation, noise, or water vapor entering and causing a short circuit, thereby solving safety hazards and improving the safety protection level of the outer rotor motor.

[0018] In some embodiments, a second connecting rib is protrudingly provided on the inner circumferential wall of the motor bracket, the second connecting rib is bent, and a second accommodating portion with a second opening is formed between the second connecting rib and the annular rib, the rotor and the second connecting rib are spaced apart in the axial direction, and the free end of the outer ring extends into the second accommodating portion; this arrangement allows the first accommodating portion and the second accommodating portion to be interspersed with each other to form a multi-level maze structure, further improving the waterproof, dustproof and mosquito-proof properties.

[0019] In some embodiments, the rotational clearance between the rotor and the stator is c, and c≥1.5 mm.

[0020] In some of the embodiments, in the axial direction of the cross-flow fan, a movement gap between the outer ring and the second connecting rib is d, and d≥3 mm.

[0021] In some of the embodiments, a motor shield is further included, which is detachably connected to the base and defines a motor installation cavity together with the base, and the outer rotor motor and the motor bracket are accommodated in the motor installation cavity. By providing the motor shield, the outer rotor motor is further protected, thereby improving the protection performance of the outer rotor motor.

[0022] In some embodiments, the first connecting ribs include vertical ribs and annular ribs, and the annular ribs are arranged on the outside of the outer ring; a recess is formed on the side wall of the motor mounting cavity, and the vertical ribs extend to the outside of the annular ribs to form an extension section, and the extension section extends into the recess; this arrangement allows the motor shield and the base to form a recess after assembly, and the extension section is inserted into the recess to form a group of maze structures, thereby further improving the safety protection level of the external rotor motor.

[0023] In some embodiments, a first retaining rib is protrudingly provided on the side wall of the motor mounting cavity, the first retaining rib forming the side wall of the recess, and the first retaining rib is located on the side of the extension section close to the cross-flow fan; in the axial direction of the cross-flow fan, the distance between the extension section and the first retaining rib is L3, and the distance between the shaft cover of the cross-flow fan and the base is L4, L3≥L4; this arrangement enables the rubber contact on the base of the cross-flow fan to absorb shock when the indoor unit of the wall-mounted air conditioner falls, thereby preventing the first retaining rib from breaking.

[0024] In some embodiments, a second retaining rib is protrudingly provided on the side wall of the motor mounting cavity, and the second retaining rib is spaced apart from the first retaining rib to form the recess; in the axial direction of the cross-flow fan, the distance between the extension section and the second retaining rib is L1, and the distance between the outer ring member and the second connecting rib on its own extension line is L2, and L1≥L2; this arrangement enables the outer ring member to collide with the rubber shock absorber on the stator contact surface when the wall-mounted air-conditioning indoor unit falls, thereby effectively protecting the cross-flow fan, reducing the risk of damage, avoiding the breakage of the second retaining rib, and generating noise inside the cross-flow fan.

[0025] In some embodiments, the rotational clearance between the extension section and the side wall of the motor installation cavity is e, and e≥1.5 mm.

[0026] The utility model also provides a hanging type air conditioner indoor unit, which comprises:

[0027] A housing, the top and the front bottom of which are respectively provided with an air-conditioning air inlet and an air-conditioning air outlet, and the housing includes a base;

[0028] an indoor heat exchanger, disposed on the base, for performing heat exchange on the air in the shell;

[0029] A cross-flow fan is provided on the base and below the indoor heat exchanger; indoor airflow enters the housing through the air inlet of the air conditioner under the action of the cross-flow fan, and is output to the room through the air outlet of the air conditioner after heat exchange in the indoor heat exchanger, and the cross-flow fan includes an end cover;

[0030] An outer ring, one end of which is fixedly connected to the end cover;

[0031] An outer rotor motor comprising:

[0032] A rotor, nested inside the outer ring;

[0033] A stator is sleeved inside the rotor, and the stator and the rotor are spaced apart;

[0034] A motor bracket, connected to the base, for mounting the stator;

[0035] A motor shield is detachably connected to the base and defines a motor installation cavity together with the base, wherein the outer rotor motor and the motor bracket are accommodated in the motor installation cavity;

[0036] a recess formed on a side wall of the motor mounting cavity;

[0037] The first connecting rib is connected to the outer ring of the outer ring, and the first connecting rib extends into the recess along the radial direction of the cross-flow fan.

[0038] The wall-mounted air-conditioning indoor unit provided by the present technical solution fixes and protects the outer rotor motor by arranging a motor shield, thereby improving the installation firmness of the outer rotor motor; a group of labyrinth structures are formed by extending the vertical first connecting ribs to the recessed portion, so that the outer rotor motor has a labyrinth structure in the radial direction, effectively blocking dust, impurities, mosquitoes, water vapor, etc. on the cross-flow fan side from entering the gap between the stator and the rotor, thereby improving the safety protection level of the outer rotor motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of an embodiment of an indoor unit of an air conditioner of the present application;

[0040] Figure 2 It is a structural schematic diagram of an air guide plate opening an air outlet of an air conditioner in one embodiment of an air conditioner indoor unit of the present application;

[0041] Figure 3 is a front view of an embodiment of an indoor unit of an air conditioner of the present application;

[0042] Figure 4 yes Figure 3 Sectional view in the AA direction;

[0043] Figure 5 This is a schematic diagram of the structure of the outer cover of an embodiment of the indoor unit of the air conditioner of the present application;

[0044] Figure 6 This is a schematic diagram of the structure of the base in one embodiment of the air conditioner indoor unit of the present application. Figure 1 ;

[0045] Figure 7This is a schematic diagram of the structure of the base in one embodiment of the air conditioner indoor unit of the present application. Figure 2 ;

[0046] Figure 8 It is a structural schematic diagram of a cross-flow fan in one embodiment of an indoor unit of an air conditioner of the present application;

[0047] Fig. 9 This is an exploded view of a cross-flow fan and a rotor in one embodiment of an indoor unit of an air conditioner of the present application;

[0048] Fig.10 This is a schematic diagram of the connection between the stator and the motor bracket in one embodiment of the air conditioner indoor unit of the present application;

[0049] Figure 11-12 is a partial cross-sectional view of an embodiment of an indoor unit of an air conditioner of the present application;

[0050] Fig.13 is a cross-sectional view of the connection between the cross-flow fan and the drive motor in one embodiment of the air conditioner indoor unit of the present application;

[0051] Figure 14-15 is a partial cross-sectional view of different embodiments of the air conditioner indoor unit of the present application;

[0052] Fig.16 It is a structural schematic diagram of an outer rotor motor of an embodiment of an air conditioner indoor unit of the present application assembled on a base;

[0053] Fig.17 yes Fig.16 Local explosion Figure 2

[0054] Fig.18 It is a structural schematic diagram of a motor shield of an embodiment of an air conditioner indoor unit of the present application being assembled on a base;

[0055] Fig.19 It is a structural schematic diagram of a motor shield of an embodiment of an air conditioner indoor unit of the present application;

[0056] Fig. 20 is a partial cross-sectional view of an embodiment of an indoor unit of an air conditioner of the present application;

[0057] Fig.21 is a partial cross-sectional view of a cross-flow fan in one embodiment of an indoor unit of an air conditioner of the present application;

[0058] Figure 22 to Figure 25 is a partial cross-sectional view of an embodiment of an indoor unit of an air conditioner of the present application;

[0059] Fig.26 is a partial cross-sectional view of another embodiment of the air conditioner indoor unit of the present application;

[0060] Fig. 27is a cross-sectional view of an embodiment of an indoor unit of an air conditioner of the present application;

[0061] Figure 28 to Figure 30 yes Fig. 27 A partial enlarged view of the middle A;

[0062] Fig.31 It is a partial cross-sectional view of an embodiment of an air-conditioning indoor unit of the present application.

[0063] In the above figures: air conditioner indoor unit 100; shell 1; base 11; first mounting groove 111; outer cover 12; air inlet 13; air outlet 14; air guide plate 15; air inlet grille 16; indoor heat exchanger 2; cross-flow fan 3; end cover 31; shaft cover 32; outer ring 4; first connecting rib 41; vertical rib 411; annular rib 412; third retaining rib 413; first accommodating portion 42; first side wall 421; extension section 43; outer rotor motor 5; stator 51; rotor 52; first rotating shaft 53; motor bracket 6; annular rib 61; fourth retaining rib 62; second connecting rib 63; second accommodating portion 64; rubber ring 65; motor shield 7; first retaining rib 71; second retaining rib 72; second mounting groove 73; recess 74; motor mounting cavity 8; cover plate 9. DETAILED DESCRIPTION

[0064] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0065] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present application may be combined with other embodiments without conflict.

[0066] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0067] The terms "first", "second" are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first", "second" may explicitly or implicitly include one or more of the features.

[0068] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] The wall-mounted air-conditioning indoor unit provided by the embodiment of the utility model can have various implementation forms.

[0070] in, Figure 1 to Figure 31 This is an illustrative embodiment of the wall mounted air conditioner indoor unit of the utility model. The wall mounted air conditioner indoor unit is arranged indoors for exchanging heat with the indoor environment. The wall mounted air conditioner may include an air conditioner outdoor unit, which is usually arranged outdoors for bringing indoor heat to the outdoors.

[0071] refer to Figure 1 to Figure 3 In this embodiment, the air conditioner indoor unit includes a housing 1. The housing 1 is installed indoors, and the housing 1 forms the overall appearance of the air conditioner indoor unit.

[0072] Continue to refer Figure 1 The housing 1 is roughly rectangular. The housing 1 has a top and a bottom, and the top and the bottom of the housing 1 are two opposite ends of the housing 1 in the height direction. The left side of the housing 1 and the right side of the housing 1 are two opposite sides of the housing 1 in the length direction, and the front side of the housing 1 and the rear side of the housing 1 are two opposite sides of the housing 1 in the thickness direction.

[0073] The shell 1 is arranged on the top of the room or in the upper space of the room, the front side of the shell 1 is arranged toward the user, and the rear side of the shell 1 is arranged toward the wall, suitable for being connected to the wall.

[0074] It should be noted that the direction described in the article is based on the direction in which the user faces the air-conditioning indoor unit, wherein the side of the air-conditioning indoor unit facing the user when in use is defined as the front side, the opposite side is defined as the rear side, and the left and right sides are distinguished based on the direction in which the user faces the air-conditioning indoor unit.

[0075] A heat exchange air duct is formed inside the housing 1. The heat exchange air duct is used to accommodate and fix various components in the air conditioner indoor unit 100, which can prevent foreign objects from colliding with the various components in the housing 1, thereby improving the reliability of the air conditioner indoor unit 100 during transportation or installation.

[0076] In some embodiments of the present application, reference Figure 2 The housing 1 may include an air-conditioning air inlet 13 .

[0077] The air conditioning inlet 13 is connected to the heat exchange duct. The air conditioning inlet 13 serves as an inlet for the external air to flow into the housing 1 , allowing the indoor air to enter the heat exchange duct through the air conditioning inlet 13 .

[0078] In some embodiments of the present application, reference Figure 2 The housing 1 may include an air conditioning outlet 14 .

[0079] The air conditioning outlet 14 is connected to the heat exchange air duct, and serves as an outlet for the heat exchange air flow in the shell 1 to flow out, allowing the air flow in the heat exchange air duct to flow out from the air conditioning outlet 14 .

[0080] The air inlet 13 of the air conditioner can be opened at the top of the housing 1. The air outlet 14 of the air conditioner can be opened at the front side of the housing 1 and arranged near the bottom of the housing 1, that is, the air outlet 14 of the air conditioner is located at the bottom of the front side of the housing 1. In this embodiment, when the indoor air conditioner unit is working, the indoor air conditioner unit 100 takes in air from the upper side and discharges air toward the front side, which is convenient for arrangement.

[0081] The air-conditioning outlet 14 may be in a long strip shape, and the air-conditioning outlet 14 may be extended along the length direction of the housing 1 , thereby improving the aesthetics of the air-conditioning indoor unit 100 .

[0082] Continue to refer Figure 2 In some embodiments of the present application, the air-conditioning indoor unit 100 may include an air guide plate 15 .

[0083] The air guide plate 15 is rotatably connected to the housing 1, and is disposed at the air-conditioning outlet 14. The air guide plate 15 opens or closes the air-conditioning outlet 14, and when the air guide plate 15 opens the air-conditioning outlet 14, it is used to guide the heat exchange airflow.

[0084] In some embodiments of the present application, the air-conditioning indoor unit 100 may include an air inlet grille 16 .

[0085] The air inlet grille 16 is disposed at the air inlet 13 of the air conditioner and is used to filter the air to prevent larger impurities from entering the heat exchange air duct.

[0086] In some embodiments of the present application, reference Figure 4The air conditioner indoor unit 100 may include an indoor heat exchanger 2. The indoor heat exchanger 2 extends along the length direction of the shell 1, and the indoor heat exchanger 2 is arranged in the heat exchange air duct for performing heat exchange with the air flow in the shell 1.

[0087] In some embodiments of the present application, the air-conditioning indoor unit 100 may include a cross-flow fan 3 .

[0088] The cross-flow fan 3 is arranged in the heat exchange air duct, and the axial direction of the cross-flow fan 3 extends along the length direction of the shell 1, and is used to drive the indoor air outside the shell 1 to enter the heat exchange air duct in the shell 1 through the air inlet. The cross-flow fan 3 drives the air in the heat exchange air duct to flow along the air-conditioning inlet 13 toward the air-conditioning outlet 14.

[0089] Continue to refer Figure 4 , the crossflow fan 3 is arranged below the indoor heat exchanger 2. The indoor heat exchanger 2 can be located inside the air inlet 13 of the air conditioner. The crossflow fan 3 can be located on the side of the indoor heat exchanger 2 away from the air inlet 13 of the air conditioner. That is, in the airflow direction in the housing 1, the crossflow fan 3 is located downstream relative to the indoor heat exchanger 2.

[0090] When the air-conditioning indoor unit 100 is running, driven by the cross-flow fan 3, the indoor air enters the heat exchange duct through the air-conditioning air inlet 13, and the indoor air in the heat exchange duct flows through the indoor heat exchanger 2 for heat exchange. The heat exchanged air flows outwardly into the room through the air-conditioning air outlet 14, thereby making the air conditioner cool and heat, playing the role of regulating the indoor temperature to achieve a comfortable temperature for the user.

[0091] refer to Figure 7 In some embodiments of the present application, the housing 1 may include a base 11. The base 11 forms the rear side of the air conditioner indoor unit 100, and the base 11 is suitable for being hung on a wall.

[0092] refer to Figure 5 The housing 1 may include an outer cover 12. The outer cover 12 is disposed on the base 11, and a heat exchange air duct is formed between the outer cover 12 and the base 11.

[0093] The outer cover 12 is roughly in the shape of a rectangular parallelepiped frame. The rear side of the outer cover 12 is open, and the outer cover 12 is arranged on the front side of the base 11 and connected with the base 11 to form the housing 1.

[0094] Continue to refer Figure 5 The air inlet 13 and the air outlet 14 are both provided on the outer cover 12. The indoor heat exchanger 2 and the cross-flow fan are both installed on the base 11.

[0095] In some embodiments of the present application, the outer cover 12 can be provided as an integral body. Of course, in some other embodiments, the outer cover 12 can be provided as a separate body.

[0096] The air conditioner outdoor unit may include an outdoor housing. An outdoor heat exchange air duct may be arranged in the outdoor housing.

[0097] The outdoor housing may include an outdoor air inlet, which may be connected to the outdoor heat exchange air duct, and may be used to introduce outdoor air into the outdoor heat exchange air duct.

[0098] The outdoor housing may include an outdoor air outlet, which may be connected to the outdoor heat exchange air duct, and may be used to lead the air in the outdoor heat exchange air duct out of the outdoor heat exchange air duct.

[0099] The air conditioner outdoor unit may include an outdoor heat exchanger. The outdoor heat exchanger may be arranged in an outdoor heat exchange air duct.

[0100] The air conditioner outdoor unit may include an outdoor fan. The outdoor fan may be arranged in an outdoor heat exchange air duct.

[0101] The rotation of the outdoor fan causes the outdoor air to enter the heat exchange duct from the outdoor air inlet to exchange heat with the outdoor heat exchanger, and the outdoor air after heat exchange flows out of the outdoor heat exchange duct from the outdoor air outlet.

[0102] The air conditioner may include a compressor, which is arranged in an outdoor heat exchange air duct.

[0103] The air conditioner may include a throttling device. The throttling device is used for throttling. The throttling device may be provided in an indoor unit of the air conditioner or an outdoor unit of the air conditioner.

[0104] The air conditioner performs the refrigeration cycle of the air conditioner by using a compressor, a condenser, a throttling device and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the air that has been conditioned and heat exchanged.

[0105] The compressor compresses the refrigerant gas in a low-temperature and low-pressure state and discharges the refrigerant gas in a high-temperature and high-pressure state, and the discharged refrigerant gas flows into the condenser.

[0106] The condenser condenses the compressed refrigerant into liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0107] The throttle device expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant.

[0108] The evaporator evaporates the refrigerant expanded in the throttling device and returns the refrigerant gas in a low temperature and low pressure state to the compressor.

[0109] The evaporator can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the whole cycle, the air conditioner can adjust the temperature of the indoor space.

[0110] Of the indoor heat exchanger and the outdoor heat exchanger, one is a condenser and the other is an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

[0111] In some embodiments of the present application, the wall-mounted air conditioner indoor unit 100 may include a drive motor. The drive motor is connected to the cross-flow fan 3 to drive the cross-flow fan 3 to rotate. The drive motor may be an outer rotor motor 5.

[0112] refer to Figure 8 The cross-flow fan 3 may include an end cover 31, which forms one end of the cross-flow fan 3. The end cover 31 is suitable for connecting to the driving motor.

[0113] The cross-flow fan 3 may include a shaft cover 32. The shaft cover 32 forms the other end of the cross-flow fan 3. That is, the shaft cover 32 and the end cover 31 are arranged opposite to each other to form the two ends of the cross-flow fan 3 in the length direction.

[0114] The cross-flow fan 3 may include a plurality of wind wheel sections, wherein the plurality of wind wheel sections are sequentially fixedly connected between the end cover 31 and the shaft cover 32 .

[0115] refer to Figure 10 to Figure 12 The outer rotor motor 5 may include a rotor 52. The rotor 52 is connected to the end cover 31.

[0116] The outer rotor motor 5 may include a stator 51. The stator 51 is sleeved inside the rotor 52, and the stator 51 and the rotor 52 are spaced apart.

[0117] The rotor 52 is disposed outside the stator 51 and is connected to the end cover 31 . When the outer rotor motor 5 is working, the rotor 52 rotates relative to the stator 51 .

[0118] In some embodiments of the present application, the wall-mounted air conditioner indoor unit 100 may include a first rotating shaft 53. One end of the first rotating shaft 53 is fixedly connected to the center of the end cover 31, and the other end of the first rotating shaft is rotatably connected to the stator 51, that is, the first rotating shaft 53 is rotatable relative to the center of the stator 51.

[0119] The rotor 52 may be a magnetic ring, ie, a permanent magnet.

[0120] It is understandable that the end cover 31 is provided with a shaft sleeve, which is suitable for being fixedly connected to the first shaft 53 of the driving motor, and the rotation of the first shaft 53 drives the end cover 31 to rotate synchronously. The shaft cover 32 is provided with a second shaft, which is suitable for being matched with the bearing assembly on the base 11.

[0121] The first rotating shaft 53, the rotor 52 and the end cover 31 can be fixed by using the first rotating shaft 53 and the rotor 52 as inserts, which can be integrally formed by insert injection molding, or fixed into a whole by welding, bonding, screwing, etc., which is beneficial to improving the connection firmness of the first rotating shaft 53, the rotor 52 and the end cover 31, and then the cross-flow fan 3 can be reliably rotated under the action of the outer rotor motor 5, thereby improving the rotation reliability of the cross-flow fan 3 and the driving efficiency of the outer rotor motor 5.

[0122] In some embodiments of the present application, the wall-mounted air conditioner indoor unit 100 may include an outer ring member 4. One end of the outer ring member 4 is fixedly connected to the end cover 31.

[0123] The rotor 52 is nested inside the outer ring 4. That is, the rotor 52 is arranged between the outer ring 4 and the stator 51, so that the rotor 52 and other structures can be isolated, and in the case of transportation and installation after demolding, the rotor 52 can be effectively prevented from being hit and causing cracks or even breakage, which is conducive to extending the life of the rotor 52.

[0124] The outer ring 4 can be integrally injection molded with the end cover 31 , which is beneficial to simplify the molding process of the relevant mold and facilitates improving the versatility of the mold.

[0125] In this embodiment, the outer ring 4 is tightly fitted with the rotor 52, and the rotor 52 is fixedly connected to the outer ring 4. Optionally, the rotor 52 can be fixedly connected to the end cover 31, which can increase the effective fixing area of ​​the rotor 52, thereby improving the connection firmness of the rotor 52, thereby facilitating the transmission of large torque, and is suitable for the transmission of a large-sized cross-flow fan 3.

[0126] In some embodiments of the present application, the wall-mounted air conditioner indoor unit 100 may include a motor bracket 6. The motor bracket 6 is connected to the base 11 for mounting the stator 51.

[0127] It can be understood that when the outer rotor motor 5 is working, the outer ring 4 moves relative to the motor bracket 6 .

[0128] Specifically, the motor bracket 6 covers the outer circumference of the stator 51, and the stator 51 is connected to the base 11 through the motor bracket 6. The connection between the motor bracket 6 and the base 11 can be screwed, riveted, or clamped, and the connection between the motor bracket 6 and the base 11 is not specifically limited here.

[0129] In some embodiments of the present application, the wall-mounted air conditioner indoor unit 100 may include a first connecting rib 41. The first connecting rib 41 is connected to the outer peripheral wall of the outer ring member 4.

[0130] refer to Fig.12 , Fig.13The first connecting rib 41 is arranged in an annular shape along the outer ring of the outer ring 4 , the first connecting rib 41 is arranged in a bent shape, and a first accommodating portion 42 having a first opening is formed between the first connecting rib 41 and the outer ring 4 , wherein the first opening faces away from the cross-flow fan 3 .

[0131] The wall mounted air conditioner indoor unit 100 may include an annular rib 61. The annular rib 61 is formed at one end of the motor bracket 6 close to the cross flow fan 3. Fig.13 , Fig.14 The free end of the annular rib 61 passes through the first opening and extends into the first accommodating portion 42 to shield the gap between the outer ring 4 and the motor bracket 6 in the axial direction of the cross-flow fan 3 .

[0132] The wall-mounted air-conditioning indoor unit 100 provided in the present embodiment is configured such that a first connecting rib 41 is provided in an annular shape on the outer ring of the outer ring member 4 to form a first accommodating portion 42 between the outer ring member 4 and the first connecting rib 41. The annular rib 61 formed at one end of the motor bracket 6 extends into the first accommodating portion 42, thereby effectively shielding the gap between the motor bracket 6 and the outer ring member 4, so that a labyrinth structure is formed between the annular rib 61 on the motor bracket 6 and the first accommodating portion 42, thereby effectively blocking dust, impurities, mosquitoes, water vapor, etc. outside the outer rotor motor 5 from entering the gap between the stator 51 and the rotor 52, thereby avoiding problems such as blockage affecting the rotation, noise, or water vapor entering and causing a short circuit, thereby resolving potential safety hazards and improving the safety protection level of the outer rotor motor 5.

[0133] In some other embodiments, reference Fig.15 , the first connecting rib 41 can be arranged as a straight rib. The outer rotor motor 5 and the motor bracket 6 are installed in the motor installation cavity 8, and a recess 74 is formed on the side wall of the motor installation cavity 8. The first connecting rib 41 extends into the recess 74 along the radial direction of the outer ring 4, so that the outer rotor motor 5 has a labyrinth structure in the radial direction.

[0134] Specifically, refer to Figure 16 to Figure 19 The wall mounted air conditioner indoor unit 100 may include a motor shield 7. The motor shield 7 is detachably connected to the base 11, and the motor shield 7 and the base 11 together define a motor installation cavity 8, in which the outer rotor motor 5 and the motor bracket 6 are accommodated.

[0135] A first mounting groove 111 is formed on the base 11 , wherein the first mounting groove 111 is located at one end of the cross-flow fan 3 in the axial direction.

[0136] The motor shield 7 is provided with a second mounting groove 73. The motor shield 7 is detachably fixedly connected to the base 11, so that the first mounting groove 111 and the second mounting groove 73 are arranged opposite to each other to form a motor mounting cavity 8.

[0137] The motor shield 7 is connected to the front side of the base 11. The motor shield 7 is disposed on the outer peripheral wall of the outer rotor motor 5 to protect the outer rotor motor 5 from the outside of the motor, thereby improving the safety of the outer rotor motor 5.

[0138] In addition, by providing a motor shield 7 which is provided on the outer peripheral wall of the outer transmission motor so as not to completely wrap the drive motor, the use of materials for the motor shield 7 can be reduced.

[0139] The outer ring member 4 is located in the motor installation cavity 8. A recess 74 is formed on the side wall of the motor installation cavity 8. In this embodiment, the opening of the recess 74 is close to the outer rotor motor 5 relative to the side wall of the motor installation cavity 8, and the first connecting rib 41 provided with vertical straight ribs extends into the recess 74 along the radial direction of the cross-flow fan 3 to block the gap between the side wall of the motor installation cavity 8 and the outer ring member 4 in the radial direction, so as to prevent dust, impurities, water vapor, mosquitoes, etc. from entering the rotation gap between the stator 51 and the rotor 52 through the gap.

[0140] The wall-mounted air-conditioning indoor unit 100 provided in this embodiment fixes and protects the outer rotor motor 5 by setting a motor shield 7, thereby improving the installation firmness of the outer rotor motor 5; a group of labyrinth structures are formed by extending the vertical first connecting ribs 41 to the recessed portion 74, so that the outer rotor motor 5 has a labyrinth structure in the radial direction, which effectively blocks dust, impurities, mosquitoes, water vapor, etc. on the side of the cross-flow fan 3 from entering the gap between the stator 51 and the rotor 52, thereby improving the safety protection level of the outer rotor motor 5.

[0141] In some embodiments of the present application, a second connecting rib 63 is protrudingly provided on the inner peripheral wall of the motor bracket 6 .

[0142] refer to Fig. 20 The second connecting rib 63 is bent, and a second accommodating portion 64 having a second opening is formed between the second connecting rib 63 and the annular rib 61 . The second opening faces the cross-flow fan 3 .

[0143] The rotor 52 and the second connection rib 63 are spaced apart in the axial direction to prevent the second connection rib 63 from colliding with the cross-flow fan 3 when the cross-flow fan 3 rotates.

[0144] The free end of the outer ring member 4 extends into the second accommodating portion 64, so that the first accommodating portion 42 and the second accommodating portion 64 are interlaced with each other to form a multi-level labyrinth structure, further improving the waterproof, dustproof and mosquito-proof performance.

[0145] Furthermore, in order to improve the waterproof, dustproof and mosquito-proof effects of the labyrinth structure, the first accommodating portion 42 and the annular rib 61, and the outer ring member 4 and the second accommodating portion 64 respectively have overlapping areas in the axial direction of the outer rotor motor 5. The size of the overlapping area in the axial direction of the cross-flow fan 3 is not less than 1 mm.

[0146] In some embodiments of the present application, the rotation gap between the rotor 52 and the stator 51 is c, where c≥1.5 mm.

[0147] The rotation gap c cannot be too small, otherwise the outer rotor motor 5 will generate vibration and noise when it is running. In order to reduce the vibration and noise generated when the outer rotor motor 5 is running, the rotation gap c is set to be not less than the first parameter value. The first parameter value can be any value between 1.5mm and 2mm. Consider selecting a suitable and specific parameter in the specific design. For example, the first parameter value can be 1.5mm.

[0148] In this embodiment, the first receiving portion 42 is an open annular groove structure, and the wall thickness of the annular rib 61 is about 1 mm. The groove width of the first receiving portion 42 in the radial direction is set to be greater than 5 mm, ensuring that the rotation gap c between the rotor 52 and the stator 51 is ≥ 1.5 mm, and ensuring that the stator 51 and the rotor 52 will not rub against each other due to concentricity deviation, thereby affecting the use.

[0149] In some embodiments of the present application, in the axial direction of the cross-flow fan 3 , the movement gap between the outer ring 4 and the second connecting rib 63 is d, and d≥3 mm.

[0150] The motion gap d cannot be too small. If it is too small, the assembly accuracy will be increased, resulting in assembly difficulties or unstable operation of the outer rotor motor 5. At the same time, axial runout will occur when the outer ring 4 rotates and the whole machine falls, requiring a safety distance. A motion gap d that is too small will result in a safety distance that is too small, affecting work reliability. In order to facilitate assembly and improve work stability, the motion gap d is set to be not less than the second parameter value. The second parameter value can be any value between 3mm and 3.5mm. Consider selecting a suitable and specific parameter in the specific design. For example, the second parameter value can be 3mm.

[0151] In some embodiments of the present application, reference Fig.21 The first connecting rib 41 may include a vertical rib 411. One end of the vertical rib 411 is connected to the outer peripheral wall of the outer ring member 4.

[0152] The first connecting rib 41 may include an annular rib 412, one end of which is connected to the vertical rib 411. The annular rib 412 is disposed outside the outer ring member 4, and the annular rib 412 is spaced apart from the outer ring member 4.

[0153] refer to Fig. 22 A recess 74 is formed on the side wall of the motor installation cavity 8, and the recess 74 is arranged outside the vertical rib 411. The vertical rib 411 extends along its own extension direction to the outside of the annular rib 412 to form an extension section 439, and the extension section 439 extends into the recess 74. The extension section 439 and the recess 74 are arranged at intervals.

[0154] In this embodiment, a recess 74 can be formed after the motor shield 7 and the base 11 are assembled, and the extension section 439 extends into the recess 74 to form a group of labyrinth structures, so that the outer rotor motor 5 has a labyrinth structure in the radial direction, which cooperates with the labyrinth structure formed between the first accommodating portion 42 and the annular rib 61 in the axial direction to form a multi-level labyrinth structure, thereby further improving the safety protection level of the outer rotor motor 5.

[0155] In some embodiments of the present application, the rotation gap between the extension section 439 and the side wall of the motor installation cavity 8 is e. e≥1.5 mm. The rotation gap e is the movement gap between the extension section 439 and the side wall of the motor installation cavity 8 in the radial direction of the cross-flow fan 3.

[0156] When the whole machine falls and the cross-flow fan 3 rotates, there needs to be a rotation gap e between the extension section 439 and the side wall of the motor mounting cavity 8. The rotation gap e cannot be too small, otherwise it will cause a collision. In order to avoid a collision between the extension section 439 and the motor mounting cavity 8, the rotation gap e is set to be not less than the third parameter value. The third parameter value can be any value between 1.5mm and 2mm. Consider selecting a suitable and specific parameter in the specific design. For example, the third parameter value can be 1.5mm.

[0157] In some embodiments of the present application, reference Fig.25 A first retaining rib 71 is convexly provided on the side wall of the motor installation cavity 8. In this embodiment, the first retaining rib 71 and the side wall of the motor installation cavity 8 form a recess 74. The first retaining rib 71 forms the side wall of the recess 74, and the first retaining rib 71 is located on the side of the extension section 439 close to the cross-flow fan 3.

[0158] refer to Fig.24 , Fig.25 In the axial direction of the cross-flow fan 3, the distance between the extension section 439 (or the first connecting rib 41 provided with straight ribs) and the first retaining rib 71 is L3, and the end of the cross-flow fan 3 away from the outer rotor motor 5 has a shaft cover 32, and the distance between the shaft cover 32 and the base 11 is L4, L3≥L4.

[0159] In this embodiment, L4 can be selected as 4.5 mm, and L4 can also be selected as 4 mm.

[0160] It is understandable that a support rubber for shock absorption is usually provided at the position of L4. The support rubber is provided on the base 11. L3 is set to be greater than or equal to L4, so that when the whole wall-mounted air conditioner indoor unit 100 falls and the cross-flow fan 3 moves away from the outer rotor motor 5, the cross-flow fan 3 first contacts the support rubber on the base 11 for shock absorption, preventing the extension section 439 from hitting the first retaining rib 71 and breaking, thereby effectively avoiding the first retaining rib 71 from breaking and generating noise inside the cross-flow fan 3.

[0161] In some other embodiments, continue to refer to Fig.25 Furthermore, a second retaining rib 72 is protrudingly provided on the side wall of the motor installation cavity 8.

[0162] One end of the first retaining rib 71 and the second retaining rib 72 is connected to the side wall of the motor installation cavity 8, and the other end thereof extends along the radial direction of the outer rotor motor 5 toward the outer ring member 4. The first retaining rib 71 is closer to the cross-flow fan 3 than the second retaining rib 72, and a recess 74 is formed between the first retaining rib 71 and the second retaining rib 72.

[0163] In this embodiment, the second retaining rib 72 is a measure to further enhance the dustproof, waterproof and mosquito-proof effects, and whether to apply it can be considered according to actual conditions.

[0164] Of course, in some other embodiments, the recess 74 may be formed by recessing a portion of the side wall of the motor mounting cavity 8 upward.

[0165] In some embodiments of the present application, in the axial direction of the cross-flow fan 3, the distance between the extension section 439 (or the first connecting rib 41 provided with straight ribs) and the second retaining rib 72 is L1, and the distance between the outer ring 4 and the second connecting rib 63 on its own extension line is L2. Wherein, L1≥L2. In this embodiment, L2 is selected to be 3 mm.

[0166] It is understandable that when the stator 51 is installed on the motor bracket 6, a rubber ring is provided between the stator 51 and the motor bracket 6. The rubber ring is provided on the stator 51. L1 is set to be greater than or equal to L2. This setting makes it possible for the outer ring 4 to first collide with the rubber ring on the contact surface of the stator 51 to absorb shock when the indoor unit 100 of the wall-mounted air conditioner falls and the cross-flow fan 3 moves toward the outer rotor motor 5, so that the outer ring 4 bears the impact of the cross-flow fan 3, effectively protecting the cross-flow fan 3, reducing the risk of damage, and preventing the second retaining rib 72 from being broken by impact, thereby generating noise inside the cross-flow fan 3.

[0167] In some embodiments of the present application, the distance between the stator 51 and the end cover 31 in the axial direction of the cross-flow fan 3 is L5, where L5=L2.

[0168] A support rubber for shock absorption is usually provided at the position of L5, wherein the support rubber is provided on the stator 51. L5 is set equal to L2, so that when the whole machine falls and the cross-flow fan 3 moves toward the stator 51, the support rubber at the position of L5 and the stator 51 at the position of L2 jointly bear the impact of the cross-flow fan 3 to reduce shock, effectively protecting the cross-flow fan 3 and reducing the risk of damage.

[0169] In some embodiments of the present application, in the axial direction of the cross-flow fan 3, the distance between the first connecting rib 41 and the motor bracket 6 is L6, wherein L6≥L2.

[0170] In this embodiment, L6 is set to be greater than or equal to L2, so that when the wall-mounted air-conditioning indoor unit 100 falls and the cross-flow fan 3 moves toward the outer rotor motor 5, the outer ring 4 first collides with the rubber ring on the contact surface of the stator 51 and the supporting rubber shock absorber, thereby effectively protecting the cross-flow fan 3 and preventing the cross-flow fan 3 from breaking.

[0171] In some embodiments of the present application, in the axial direction of the cross-flow fan 3, the distance between the first connecting rib 41 and the annular rib 61 is L7, wherein L7≥L2.

[0172] In this embodiment, L7 is set to be greater than or equal to L2, so that when the wall-mounted air conditioner indoor unit 100 falls and the cross-flow fan 3 moves toward the outer rotor motor 5, the outer ring 4 first hits the rubber ring on the contact surface of the stator 51 to reduce shock, so that it bears the impact of the cross-flow fan 3, effectively protecting the cross-flow fan 3 and reducing the risk of damage. At the same time, it is prevented that the first connecting rib 41 hits the annular rib 61, causing the annular rib 61 to break and generate noise inside the cross-flow fan 3.

[0173] In some embodiments of the present application, reference Fig.26 The first receiving portion 42 has two first side walls 421 arranged opposite to each other. The annular rib 412 of the first connecting rib 41 and the outer ring member 4 form two first side walls 421 arranged opposite to each other in the first receiving portion 42 .

[0174] The wall-mounted air conditioner indoor unit 100 may include a third retaining rib 413. The third retaining rib 413 is disposed around one of the two first side walls 421. That is, the third retaining rib 413 is connected to the first side wall 421 along the circumferential direction.

[0175] The third retaining rib 413 is integrally injection-molded with the first connecting rib 41 , the outer ring 4 and the end cover 31 .

[0176] The wall mounted air conditioner indoor unit 100 may include a fourth retaining rib 62. The fourth retaining rib 62 is disposed on a side of the annular rib 61 close to the third retaining rib 413.

[0177] After assembly, the third retaining rib 413 is closer to the cross-flow fan 3 than the fourth retaining rib 62. The third retaining rib 413 and the fourth retaining rib 62 are spaced apart in the length direction of the machine body, and there is an overlapped area in the radial direction of the outer ring 4.

[0178] In the wall-mounted air-conditioning indoor unit 100 provided in this embodiment, the annular rib 61 extends into the first accommodating portion 42, effectively shielding the gap between the motor bracket 6 and the outer ring member 4 in the axial direction, and the annular rib 61 and the first accommodating portion 42 form a waterproof, dustproof and waterproof labyrinth structure.

[0179] By arranging the third retaining rib 413 and the fourth retaining rib 62 with overlapping areas, they cooperate with the annular rib 61 and the first accommodating portion 42 to form a multi-level labyrinth structure, which effectively blocks dust, impurities, mosquitoes, water vapor, etc. outside the outer rotor motor 5 from entering the gap between the stator 51 and the rotor 52; avoid blockage affecting the rotation, noise, or water vapor entering and causing a short circuit, solve the safety hazards, and improve the safety protection level of the outer rotor motor 5.

[0180] Specifically, when dust, impurities, mosquitoes, and water vapor on the outside of the outer rotor motor 5 enter the rotating gap between the stator 51 and the rotor 52 through the gap between the outer ring 4 and the motor bracket 6, they are blocked by multiple ribs and need to make multiple turns in the multi-level maze structure before entering the interior of the outer rotor motor 5, further improving the safety protection level of the motor.

[0181] In this embodiment, the annular rib 61 , the motor bracket 6 , and the fourth blocking rib 62 are integrally injection molded.

[0182] Exemplary, reference Fig.28 In this embodiment, the fourth retaining rib 62 is disposed on the outer peripheral wall of the annular rib 61 and is located in the first accommodating portion 42. The third retaining rib 413 is disposed on the first connecting rib 41 and extends along the radial direction of the outer ring 4.

[0183] In the wall-mounted air conditioner indoor unit 100 provided in this embodiment, after assembly, the third retaining rib 413 is closer to the cross-flow fan 3 relative to the fourth retaining rib 62, and the third retaining rib 413 and the fourth retaining rib 62 are located at the inlet end of the multi-stage labyrinth structure. In the length direction of the machine body, the third retaining rib 413 and the fourth retaining rib 62 are arranged at intervals. Among them, the third retaining rib 413 and the fourth retaining rib 62 have an overlapping area in the radial direction of the outer ring member 4.

[0184] In the wall-mounted air conditioner indoor unit 100 provided in this embodiment, the annular rib 61 extends into the first accommodating portion 42, effectively shielding the gap between the motor bracket 6 and the outer ring member 4 in the axial direction. By respectively arranging the third retaining rib 413 and the fourth retaining rib 62 on the annular rib 61 and the first connecting rib 41, the third retaining rib 413 and the fourth retaining rib 62 cooperate with the motor bracket 6 and the first accommodating portion 42 to form a multi-level labyrinth structure, effectively preventing dust, impurities, mosquitoes, water vapor, etc. outside the outer rotor motor 5 from entering the gap between the stator 51 and the rotor 52, avoiding the problem of blockage affecting the rotation, noise, or water vapor entering and causing a short circuit, solving the potential safety hazards, and improving the safety protection level of the outer rotor motor 5.

[0185] Furthermore, the third retaining rib 413 and the fourth retaining rib 62 are arranged at the inlet end of the multi-stage maze structure, which effectively blocks dust, impurities, mosquitoes and water vapor outside the outer rotor motor 5 outside the multi-stage maze structure, reduces the risk of dust, impurities, mosquitoes and water vapor entering the maze structure, and thereby prevents them from entering the gap between the stator 51 and the rotor 52.

[0186] In some embodiments of the present application, reference Fig.29 , the size of the overlapping area in the radial direction is n. n ≥ 1 mm.

[0187] The size n of the overlapping area cannot be too small, otherwise it will be unfavorable to form a complex path between the third retaining rib 413 and the fourth retaining rib 62. In order to provide a complex path for dust, water vapor or mosquitoes in the first accommodating portion 42 and prevent them from entering the rotating gap between the stator 51 and the rotor 52, the size n of the overlapping area is set to be not less than the fourth parameter value. The fourth parameter value can be any value between 1 mm and 1.4 mm. Consider selecting a suitable and specific parameter in the specific design. For example, the fourth parameter value can be 1 mm.

[0188] In some embodiments of the present application, reference Fig.30 In the length direction of the housing 1 , the distance between the third retaining rib 413 and the fourth retaining rib 62 is m, and the distance between the annular rib 61 and the first connecting rib 41 is q. Wherein, m≥q.

[0189] In this embodiment, m is set to be not less than q, so that when the entire machine falls, the impact of the cross-flow fan 3 is mainly borne by the annular rib 61 and the motor bracket 6, thereby preventing the third barrier rib 413 and the fourth barrier rib 62 from colliding with each other and breaking, thereby preventing the third barrier rib 413 and the fourth barrier rib 62 from breaking and generating noise inside the cross-flow fan 3.

[0190] In some embodiments of the present application, in the length direction of the housing 1, the distance between the third barrier rib 413 and the fourth barrier rib 62 is m, wherein 2 mm ≤ m, and m ≤ 6 mm.

[0191] Axial runout caused by the rotation of the cross-flow fan 3 or the fall of the whole machine requires a safe distance. Therefore, the distance m between the third retaining rib 413 and the fourth retaining rib 62 cannot be too small. If it is too small, the safe distance cannot be guaranteed, which may easily cause mechanical interference and increased friction. In order to ensure a safe distance between the two, the distance m is set to be no less than the fifth parameter value. The fifth parameter value can be any value between 2mm and 2.5mm. Consider selecting a suitable and specific parameter in the specific design. For example, the fifth parameter value can be 2mm.

[0192] The distance m cannot be too large. If it is too large, the labyrinth structure will have the problem of poor sealing, and it will not be able to effectively block the entry of dust, impurities, mosquitoes, and water vapor outside the outer rotor motor 5, and it will also pass through the length of the whole machine. In order to effectively block dust, impurities, mosquitoes, and water vapor, the distance m is set to be no greater than the sixth parameter value. The sixth parameter value can be 5mm to 6mm. Consider selecting a suitable and specific parameter in the specific design. For example, the sixth parameter value can be 6mm.

[0193] In some embodiments of the present application, in the length direction of the housing 1 , the distance between the third barrier rib 413 and the fourth barrier rib 62 is m, wherein 2 mm≤m≤6 mm.

[0194] In this embodiment, the distance m is set within a reasonable range of 2 mm to 6 mm, which not only ensures a safe distance between the third barrier rib 413 and the fourth barrier rib 62, but also avoids the effect of blocking dust, water vapor, etc. due to the distance m being too large, thereby improving the safety protection level of the outer rotor motor 5.

[0195] In some embodiments of the present application, reference Fig.31 The rotation gap between the third retaining rib 413 and the annular rib 61 is h1. 1.5 mm ≤ h1. h1 ≤ 6 mm. The rotation gap h1 is the movement gap between the third retaining rib 413 and the annular rib 61 in the radial direction of the cross-flow fan 3.

[0196] The rotation gap h1 cannot be too small. If it is too small, the safe distance between the first retaining rib 71 and the annular rib 61 cannot be guaranteed, which may easily cause a collision. In order to avoid the first retaining rib 71 and the annular rib 61 from colliding when the cross-flow fan 3 is working, the rotation gap h1 is set to be not less than the seventh parameter value. The seventh parameter value can be any value between 1.5 mm and 2 mm. Consider selecting a suitable and specific parameter in the specific design. For example, the seventh parameter value can be 1.5 mm.

[0197] The rotation gap h1 cannot be too large, otherwise dust, impurities or water vapor may easily enter the labyrinth structure. In order to effectively prevent dust, impurities and water vapor from entering, the rotation gap h1 is set to be no greater than the eighth parameter value. The eighth parameter value may be any value between 5 mm and 6 mm. Consider selecting a suitable and specific parameter in the specific design. For example, the eighth parameter value may be 6 mm.

[0198] In some embodiments, the rotation gap between the third retaining rib 413 and the annular rib 61 is h1. 1.5 mm≤h1≤6 mm.

[0199] In this embodiment, the rotation gap h1 is set within a reasonable range to any value between 1.5 mm and 6 mm, which effectively prevents dust, water vapor, etc. from entering the outer rotor motor 5 through the labyrinth structure, while ensuring a safe distance between the third retaining rib 413 and the annular rib 61, effectively avoiding collision between the two.

[0200] In some embodiments of the present application, the rotation gap between the fourth retaining rib 62 and the first side wall 421 where the third retaining rib 413 is located is h2. 1.5mm≤h2. h2≤6mm. The rotation gap h2 is the movement gap between the fourth retaining rib 62 and the first side wall 421 where the third retaining rib 413 is located in the radial direction of the cross-flow fan 3.

[0201] The rotation gap h2 cannot be too small. If it is too small, the safety distance between the fourth retaining rib 62 and the first side wall 421 where the third retaining rib 413 is located cannot be guaranteed, which may easily cause a collision. In order to avoid a collision between the two when the cross-flow fan 3 is working, the rotation gap h2 is set to be not less than the ninth parameter value. The ninth parameter value can be any value between 1.5 mm and 2 mm. Consider selecting a suitable and specific parameter in the specific design. For example, the ninth parameter value can be 1.5 mm.

[0202] The rotation gap h2 cannot be too large, otherwise dust, impurities or water vapor may easily enter the labyrinth structure. In order to effectively prevent dust, impurities and water vapor from entering, the rotation gap h2 is set to be no greater than the tenth parameter value. The tenth parameter value may be any value between 5 mm and 6 mm. Consider selecting a suitable and specific parameter in the specific design. For example, the tenth parameter value may be 6 mm.

[0203] In some embodiments of the present application, the rotation gap between the fourth retaining rib 62 and the first side wall 421 where the third retaining rib 413 is located is h2. 1.5mm≤h2≤6mm. In this embodiment, the rotation gap h2 is set to any value between 1.5mm and 6mm, so that it is within a reasonable range, thereby making the size of the fourth retaining rib 62 within a reasonable range, effectively preventing dust, water vapor, etc. from entering, and avoiding the fourth retaining rib 62 from colliding with the first side wall 421 where the third retaining rib 413 is located.

[0204] It can be understood that, similarly, in some of the embodiments, the rotation gap h3 between the first side wall 421 not connected to the third retaining rib 413 and the annular rib 61 is any value between 1.5 mm and 6 mm.

[0205] In some embodiments of the present application, a motor cavity is formed inside the motor bracket 6, and an end of the motor cavity away from the cross-flow fan 3 has an opening. The stator 51 is installed in the motor bracket 6 through the opening.

[0206] For further reference, Fig. 22 The wall-mounted air conditioner indoor unit 100 may include a cover plate 9, which is adaptably connected to the open end of the motor bracket 6 to shield the open end of the motor bracket 6, thereby protecting the outer rotor motor 5 and reducing foreign matter from interfering with the operation of the outer rotor motor.

[0207] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

[0208] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A wall mounted air conditioner indoor unit, characterized in that: include: A housing, the top and the front bottom of which are respectively provided with an air-conditioning air inlet and an air-conditioning air outlet, and the housing includes a base; an indoor heat exchanger, disposed on the base, for performing heat exchange on the air in the shell; A cross-flow fan is disposed on the base and below the indoor heat exchanger; The indoor airflow enters the housing through the air inlet of the air conditioner under the action of the cross-flow fan, and is output to the room through the air outlet of the air conditioner after heat exchange in the indoor heat exchanger, and the cross-flow fan includes an end cover; An outer ring, one end of which is fixedly connected to the end cover; An outer rotor motor comprising: A rotor, nested inside the outer ring; A stator is sleeved inside the rotor, and the stator and the rotor are spaced apart; A motor bracket, connected to the base, for mounting the stator; A first connecting rib is annularly arranged along the outer ring of the outer ring, and the first connecting rib is bent to form a first accommodating portion having a first opening between the first connecting rib and the outer ring; An annular rib is formed at one end of the motor bracket close to the cross-flow fan, and a free end of the annular rib passes through the first opening and extends into the first accommodating portion.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: A second connecting rib is protruding on the inner circumferential wall of the motor bracket, the second connecting rib is bent, and a second accommodating portion with a second opening is formed between the second connecting rib and the annular rib, the rotor and the second connecting rib are spaced apart in the axial direction, and the free end of the outer ring extends into the second accommodating portion.

3. The wall-mounted air conditioner indoor unit according to claim 1 or 2, characterized in that: The rotation clearance between the rotor and the stator is c, c≥1.5mm.

4. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that: In the axial direction of the cross-flow fan, a movement gap between the outer ring and the second connecting rib is d, and d≥3 mm.

5. The wall-mounted air conditioner indoor unit according to claim 1 or 2, characterized in that: It also includes a motor shield, which is detachably connected to the base and defines a motor installation cavity together with the base. The outer rotor motor and the motor bracket are accommodated in the motor installation cavity.

6. The wall-mounted air conditioner indoor unit according to claim 5, characterized in that: The first connecting rib includes vertical ribs and annular ribs, and the annular ribs are arranged on the outside of the outer ring; a recess is formed on the side wall of the motor mounting cavity, and the recess is arranged on the outside of the vertical ribs. The vertical ribs extend to the outside of the annular ribs to form an extension section, and the extension section extends into the recess.

7. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that: A first retaining rib is protrudingly provided on the side wall of the motor mounting cavity, the first retaining rib forming the side wall of the recess, and the first retaining rib is located on the side of the extension section close to the cross-flow fan; in the axial direction of the cross-flow fan, the distance between the extension section and the first retaining rib is L3, and the distance between the shaft cover of the cross-flow fan and the base is L4, and L3≥L4.

8. The wall-mounted air conditioner indoor unit according to claim 7, characterized in that: A second retaining rib is protrudingly provided on the side wall of the motor mounting cavity, and the second retaining rib is spaced apart from the first retaining rib to form the recess; in the axial direction of the cross-flow fan, the distance between the extension section and the second retaining rib is L1, and the distance between the outer ring member and the second connecting rib on its own extension line is L2, and L1≥L2.

9. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that: The rotational clearance between the extension section and the side wall of the motor installation cavity is e, e≥1.5mm.

10. A wall mounted air conditioner indoor unit, characterized in that: include: A housing, the top and the front bottom of which are respectively provided with an air-conditioning air inlet and an air-conditioning air outlet, and the housing includes a base; an indoor heat exchanger, disposed on the base, for performing heat exchange on the air in the shell; A cross-flow fan is disposed on the base and below the indoor heat exchanger; The indoor airflow enters the housing through the air inlet of the air conditioner under the action of the cross-flow fan, and is output to the room through the air outlet of the air conditioner after heat exchange in the indoor heat exchanger, and the cross-flow fan includes an end cover; An outer ring, one end of which is fixedly connected to the end cover; An outer rotor motor comprising: A rotor, nested inside the outer ring; A stator is sleeved inside the rotor, and the stator and the rotor are spaced apart; A motor bracket, connected to the base, for mounting the stator; A motor shield is detachably connected to the base and defines a motor installation cavity together with the base, wherein the outer rotor motor and the motor bracket are accommodated in the motor installation cavity; a recess formed on a side wall of the motor mounting cavity; The first connecting rib is connected to the outer ring of the outer ring, and the first connecting rib extends into the recess along the radial direction of the cross-flow fan.

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