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 indoor unit and an outdoor unit, the indoor heat exchanger is arranged on the base; the cross-flow fan is arranged on the base and located below the indoor heat exchanger; the outer rotor motor is connected with the cross-flow fan and comprises a stator and a rotor annularly arranged outside the stator at intervals; the motor support is connected to the base, a first opening is formed in the end, away from the cross-flow fan, of the motor support, and the stator is installed in the motor support through the first opening; the cover plate is embedded into the motor bracket through the first opening; the sealing part is convexly arranged on the outer peripheral wall of the cover plate; during assembly, the cover plate is embedded into the motor bracket, and the sealing part abuts against the first open end of the motor bracket, so that the assembly gap between the cover plate and the motor bracket is sealed, dust, impurities, mosquitoes, water vapor and the like are effectively prevented from entering the gap between the stator and the rotor, and the operation reliability of the outer 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 can be an outer rotor motor, and the rotor and stator of the outer rotor motor can 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. In the related art, there is a technical solution in which the stator is installed in the motor bracket through the opening at one end of the motor bracket (motor housing), and is installed on the base through the motor bracket, which facilitates the installation of the outer rotor motor to a certain extent, and at the same time prevents the stator from being completely exposed to the outside.

[0004] However, the existing motor bracket lacks a sealing structure. When there is a lot of dust and lint in the room, impurities will enter the motor through the open end of the motor bracket, blocking the rotating gap between the stator and the rotor, affecting the rotation and making noise. Mosquitoes attracted to heat may enter the motor through the rotating gap between the motor bracket and the cross-flow fan, or condensation water may enter the motor through the rotating gap between the motor bracket and the cross-flow fan, causing a short circuit, 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;

[0010] An outer rotor motor connected to the cross-flow fan, the outer rotor motor comprising a stator and a rotor with a spacer ring disposed outside the stator;

[0011] a motor bracket connected to the base, wherein a motor cavity is formed inside the motor bracket, and an end of the motor bracket away from the cross-flow fan has a first opening, and the stator is installed in the motor cavity through the first opening;

[0012] A cover plate, a portion of which is embedded in the motor bracket through the first opening, and the cover plate and the motor bracket are in clearance fit;

[0013] A sealing portion, convexly disposed on the outer peripheral wall of the cover plate;

[0014] During assembly, the cover plate is embedded in the motor bracket, and the sealing portion abuts against the first open end of the motor bracket to seal the assembly gap between the cover plate and the motor.

[0015] The wall-mounted air-conditioner indoor unit provided by the present technical solution can protect the outer rotor motor by shielding the first open end of the motor bracket through the cover plate, and at the same time reduce the interference of foreign matter on the operation of the outer rotor motor; by arranging a sealing portion on the outer peripheral wall of the cover plate, when the cover plate is embedded in the motor bracket, the sealing portion abuts against the first open end of the motor bracket to seal the assembly gap between the cover plate and the motor, effectively preventing dust, impurities, mosquitoes, water vapor, etc. from entering the gap between the stator and the rotor through the assembly gap, thereby improving the safety protection level of the outer rotor motor and improving the operational reliability.

[0016] The utility model also provides a hanging type air conditioner indoor unit, which comprises:

[0017] 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;

[0018] an indoor heat exchanger, disposed on the base, for performing heat exchange on the air in the shell;

[0019] 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;

[0020] An outer rotor motor connected to the cross-flow fan, the outer rotor motor comprising a stator and a rotor with a spacer ring disposed outside the stator;

[0021] a motor bracket connected to the base, wherein a motor cavity is formed inside the motor bracket, and an end of the motor bracket away from the cross-flow fan has a first opening, and the stator is installed in the motor cavity through the first opening;

[0022] A cover plate, one end of which is embedded into the motor bracket through the first open end, and the cover plate is in clearance fit with the motor bracket;

[0023] A sealing part is arranged at the other end of the cover plate. The sealing part protrudes relative to the cover plate in a direction away from the central axis of the cross-flow fan, and the sealing part is integrally injection-molded with the cover plate;

[0024] During assembly, the cover plate is embedded into the motor bracket, and the sealing part abuts against the first open end of the motor bracket to seal the assembly gap between the cover plate and the motor.

[0025] For the indoor unit of the hanging air conditioner provided by this technical solution, while protecting the external rotor motor by covering the first open end of the motor bracket with the cover plate, foreign object interference with the operation of the external rotor motor can be reduced; by arranging a sealing part at one end of the cover plate, when the cover plate is embedded into the motor bracket, the sealing part abuts against the first open end of the motor bracket to seal the assembly gap between the cover plate and the motor, effectively preventing dust, impurities, mosquitoes, water vapor, etc. from entering the gap between the stator and the rotor through the assembly gap, and improving the operation reliability of the external rotor motor.

[0026] In some embodiments, the distance that the cover plate is embedded into the motor bracket is a, where 1mm < a and a < 5mm; by reasonably setting the distance a, it is convenient to install the cover plate.

[0027] In some embodiments, the assembly gap is b, where 0.2mm < b and b < 0.5mm; by reasonably setting the assembly gap b, it is not only convenient to install the cover plate, but also can effectively block the first open end of the motor bracket.

[0028] In some embodiments, the projection of the outer edge of the sealing part along the axial direction of the cross-flow fan onto the motor bracket falls within the first open end; this setting makes the outer edge of the sealing part not extend to the outside of the first open end, avoiding interference with other components inside the housing.

[0029] In some embodiments, at least one first connection part is arranged on the peripheral wall of the motor bracket, and at least one second connection part is arranged on the peripheral wall of the cover plate. The second connection part is closer to the cross-flow fan than the sealing part. The first connection part and the second connection part are in one-to-one correspondence and are adaptively connected, so that the cover plate can be detachably installed on the motor bracket, facilitating the installation and maintenance of the external rotor motor.

[0030] In some embodiments, the first connecting portion is a slot, the second connecting portion is a protrusion adapted to the slot, and the protrusion is provided on the outer peripheral wall of the cover plate; by the snap-fitting cooperation between at least one protrusion and at least one slot, the installation efficiency of the cover plate is improved.

[0031] In some of the embodiments, a notch is provided on at least one side of the slot, and the notch is provided on the motor bracket. The notch is formed by a portion of the first open end being recessed in a direction close to the cross-flow fan. By providing the notch, the side wall of the motor bracket where the slot is located is elastic and can produce elastic deformation when the cover is installed, so that the cover can be quickly and firmly installed on the motor bracket.

[0032] In some of the embodiments, a first guide surface is provided on the protrusion, and a second guide surface is provided on the first open end for guiding and cooperating with the first guide surface, and the second guide surface is provided corresponding to the slot; by providing the first guide surface and the second guide surface for guiding and cooperating, the cover plate can be assembled into place under pressing force, thereby reducing the difficulty of assembly and thereby improving the assembly efficiency of the air conditioner indoor unit.

[0033] In some embodiments, the cross-flow fan includes an end cover, an outer ring member is provided on the side of the end cover close to the outer rotor motor, the rotor is nested in the interior of the outer ring member and is spaced apart from the end cover; a first accommodating portion is formed on the outer peripheral wall of the outer ring member, and the motor bracket extends into the first accommodating portion at one end close to the cross-flow fan to cover the gap between the motor bracket and the outer ring member, effectively preventing dust, impurities, mosquitoes, water vapor, etc. from entering the gap between the stator and the outer rotor through the gap, thereby improving the safety protection level of the outer rotor motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of an embodiment of an indoor unit of an air conditioner of the present application;

[0035] 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;

[0036] Figure 3 is a front view of an embodiment of an indoor unit of an air conditioner of the present application;

[0037] Figure 4 yes Figure 3 Sectional view in the AA direction;

[0038] 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;

[0039] Figure 6This 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 ;

[0040] Figure 7 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 2 ;

[0041] 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;

[0042] 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;

[0043] Fig.10 is a partial cross-sectional view of an embodiment of an indoor unit of an air conditioner of the present application;

[0044] Figure 11-12 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;

[0045] Fig.13 It is an exploded view of a stator and a motor bracket in one embodiment of an air conditioner indoor unit of the present application;

[0046] Fig.14 It is a structural schematic diagram of a motor bracket in one embodiment of an indoor unit of an air conditioner of the present application;

[0047] Fig.15 is a structural schematic diagram of a motor bracket in another perspective of an embodiment of an air conditioner indoor unit of the present application;

[0048] Fig.16 This is a structural schematic diagram of a cover plate in one embodiment of an indoor unit of an air conditioner of the present application;

[0049] Fig.17 It is a partial cross-sectional view of a cover plate embedded in a motor bracket in one embodiment of an indoor unit of an air conditioner of the present application;

[0050] Fig.18 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 3 ;

[0051] Fig.19 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;

[0052] Fig. 20 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;

[0053] Fig.21 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;

[0054] Fig. 22 It is a partial cross-sectional view of an embodiment of an air-conditioning indoor unit of the present application.

[0055] 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 member 4; first connecting rib 41; first accommodating portion 42; outer rotor motor 5; stator 51; rotor 52; first rotating shaft 53; motor bracket 6; annular rib 61; slot 66; notch 67; second guide surface 68; first opening 69; motor shield 7; motor mounting cavity 8; cover plate 9; sealing portion 91; protrusion 92; first guide surface 93. DETAILED DESCRIPTION

[0056] 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.

[0057] 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.

[0058] 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.

[0059] The terms "first", "second" are used for descriptive purposes only 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" and "second" may explicitly or implicitly include one or more of the features.

[0060] 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.

[0061] The wall-mounted air-conditioning indoor unit provided by the embodiment of the utility model can have various implementation forms.

[0062] in, Figure 1 to Figure 22 This is an illustrative embodiment of the wall mounted air conditioner indoor unit of the utility model. The wall mounted air conditioner indoor unit includes an air conditioner indoor unit, which is arranged indoors and used to exchange heat with the indoor environment. The wall mounted air conditioner indoor unit may include an air conditioner outdoor unit, which is usually arranged outdoors and used to bring indoor heat to the outdoors.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] In some embodiments of the present application, reference Figure 2 The housing 1 may include an air-conditioning air inlet 13 .

[0069] 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 .

[0070] In some embodiments of the present application, reference Figure 2 The housing 1 may include an air conditioning outlet 14 .

[0071] 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 through the air conditioning outlet 14 .

[0072] 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.

[0073] 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 .

[0074] 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 .

[0075] 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.

[0076] In some embodiments of the present application, the air-conditioning indoor unit 100 may include an air inlet grille 16 .

[0077] 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.

[0078] In some embodiments of the present application, reference Figure 4 The 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.

[0079] In some embodiments of the present application, the air-conditioning indoor unit 100 may include a cross-flow fan 3 .

[0080] 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.

[0081] 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.

[0082] When the air-conditioning indoor unit 100 is running, under the action of 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 to 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.

[0083] refer to Figure 6 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] The air conditioner outdoor unit may include an outdoor housing. An outdoor heat exchange air duct may be arranged in the outdoor housing.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] The air conditioner outdoor unit may include an outdoor fan. The outdoor fan may be arranged in an outdoor heat exchange air duct.

[0093] 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.

[0094] The air conditioner may include a compressor, which is arranged in an outdoor heat exchange air duct.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] The condenser condenses the compressed refrigerant into liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0099] The throttle device expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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 .

[0107] refer to Figure 9-10 The outer rotor motor 5 may include a rotor 52. The rotor 52 is connected to the end cover 31.

[0108] 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.

[0109] 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 .

[0110] 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.

[0111] The rotor 52 may be a magnetic ring, ie, a permanent magnet.

[0112] 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.

[0113] 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.

[0114] In some embodiments of the present application, in order to facilitate the connection of the rotor, 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.

[0115] The rotor 52 can be 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.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] A motor cavity is formed inside the motor bracket 6. Fig.15 The motor bracket 6 has a first opening 69 at one end away from the cross-flow fan, and the stator is installed in the motor cavity in the motor bracket 6 through the first opening 69. The arrow direction is the installation direction of the stator.

[0120] In some embodiments of the present application, reference Figure 12-13 The wall mounted air conditioner indoor unit 100 may include a cover plate 9 . Part of the cover plate 9 is embedded in the motor bracket 6 through the first opening 69 , and the cover plate 9 is adapted to be connected with the motor bracket 6 to cover the first opening 69 .

[0121] refer to Fig.16 The wall mounted air conditioner indoor unit 100 may include a sealing portion 91. The sealing portion 91 is convexly disposed on the outer peripheral wall of the cover plate 9.

[0122] During assembly, a portion of the cover plate 9 is embedded in the motor bracket 6 , and the sealing portion 91 abuts against the first open end of the motor bracket 6 to seal the assembly gap between the cover plate 9 and the motor bracket 6 .

[0123] The wall-mounted air conditioner indoor unit provided in this embodiment can protect the outer rotor motor 5 by shielding the first open end of the motor bracket 6 with the cover plate 9, and can reduce the interference of foreign matter on the operation of the outer rotor motor 5. By arranging a sealing portion 91 on the outer peripheral wall of the cover plate 9, after the cover plate 9 is assembled, the sealing portion 91 abuts against the first open end of the motor bracket 6 to seal the assembly gap between the cover plate 9 and the motor, effectively preventing dust, impurities, mosquitoes, water vapor, etc. from entering the gap between the stator and the rotor 52 through the assembly gap, thereby improving the safety protection level of the outer rotor motor 5 and improving the operation reliability.

[0124] In some other embodiments, one end of the cover plate 9 can be embedded in the motor bracket 6 through the first opening 69, and the cover plate 9 and the motor bracket 6 are clearance-matched. The sealing portion 91 can be provided at the other end of the cover plate 9, that is, the end away from the cross-flow fan. The sealing portion 91 protrudes relative to the cover plate 9 in a direction away from the central axis of the cross-flow fan 3.

[0125] In some embodiments of the present application, the sealing portion 91 and the cover plate 9 are integrally injection molded, which is beneficial to simplify the molding process of the relevant mold and facilitates improving the versatility of the mold.

[0126] In this embodiment, during assembly, one end of the cover plate 9 is embedded in the motor bracket 6, shielding the first open end of the motor bracket 6 to protect the outer rotor motor 5 and reduce foreign matter from interfering with the operation of the outer rotor motor 5. The sealing portion 91 is suitable for abutting against the first open end of the motor bracket 6 to seal the assembly gap between the cover plate 9 and the motor bracket 6, effectively preventing dust, impurities, mosquitoes, water vapor, etc. from entering the gap between the stator and the rotor 52 through the assembly gap, thereby improving the operating reliability of the outer rotor motor 5.

[0127] refer to Fig.17 In some embodiments of the present application, the distance between the cover plate 9 and the motor bracket 6 is a. 1 mm <a。a<5mm。

[0128] The distance a cannot be too small. If it is too small, the cover plate 9 cannot be conveniently and firmly installed on the motor bracket 6, and the shielding effect will be poor. At the same time, if the distance a is too small, the cover plate 9 cannot be fully embedded in the motor bracket 6, resulting in insufficient overall structural strength. During the operation of the outer rotor motor 5, it is susceptible to vibration and impact, and there is a risk of loosening or falling off. In order to ensure the installation of the cover plate 9, the distance a is set to be greater than the eleventh parameter value. The eleventh parameter value can be any value between 1mm and 1.5mm. Consider selecting a suitable and specific parameter in the specific design. For example, the eleventh parameter value can be 1mm.

[0129] The distance a cannot be too large, otherwise it will reduce the installation space of the motor cavity and affect the installation of the stator. In order to ensure that the stator has sufficient installation space, the distance a is set to be less than the twelfth parameter value. The twelfth parameter value can be any value between 4.5mm and 5mm. Consider selecting a suitable and specific parameter in the specific design. For example, the twelfth parameter value can be 5mm.

[0130] In some embodiments, the distance between the cover plate 9 and the motor bracket 6 is a. <a<5mm。

[0131] In this embodiment, the distance a is set within any value between 1 mm and 5 mm, so that it is set within a reasonable range, which is convenient for installing the cover plate 9 and ensuring the shielding effect of shielding the first open end, and can also ensure that the stator has sufficient installation space to avoid mechanical interference or friction during the operation of the outer rotor motor 5.

[0132] In some embodiments of the present application, continue to refer to Fig.17 , the assembly gap between the cover plate 9 and the motor bracket 6 is b. Among them, 0.2mm <b。b<0.5mm。

[0133] The assembly gap b cannot be too small. If it is too small, it will be difficult for the cover plate 9 to be embedded in the motor bracket 6, increasing the difficulty of assembly. At the same time, if the assembly gap b is too small, stress concentration will occur between the cover plate 9 and the motor bracket 6, which may easily cause material fatigue and fracture, and affect the operating reliability of the outer rotor motor 5. In order to reduce the difficulty of assembling the cover plate 9, the assembly gap b is set to be greater than the thirteenth parameter value. The thirteenth parameter value can be any value between 0.2mm and 0.25mm. Consider selecting a suitable and specific parameter in the specific design. For example, the thirteenth parameter value can be 0.2mm

[0134] The assembly gap b cannot be too large. If it is too large, the cover plate 9 will not be sealed well and the cover plate 9 cannot be firmly connected to the motor bracket 6. In order to ensure the sealing of the cover plate 9, the assembly gap b is set to be less than the fourteenth parameter value. For example, the fourteenth parameter value can be any value between 0.45mm and 0.5mm. Consider selecting a suitable and specific parameter in the specific design. For example, the fourteenth parameter value can be 0.5mm

[0135] In some embodiments, the assembly gap between the cover plate 9 and the motor bracket 6 is b. 0.2 mm <b<0.5mm。

[0136] In this embodiment, by reasonably setting the assembly gap b to any value between 0.2 mm and 0.5 mm, it is convenient to install the cover plate 9 and can effectively shield the first opening 69 of the motor bracket 6 to improve its sealing performance.

[0137] In some embodiments of the present application, the projection of the outer edge of the sealing portion 91 along the axial direction of the cross-flow fan 3 to the motor bracket 6 falls into the first open end. That is, in the radial direction of the cross-flow fan, the outer edge of the sealing portion 91 does not exceed the first open end of the motor bracket 6.

[0138] In this embodiment, the projection of the outer edge of the sealing portion 91 toward the motor bracket 6 along the axial direction of the cross-flow fan falls into the first open end, so that the outer edge of the sealing portion 91 does not extend to the outside of the first open end, avoiding interference with other components in the shell.

[0139] In some embodiments of the present application, the wall-mounted air conditioner indoor unit 100 may include at least one first connection portion, wherein the first connection portion is disposed on the peripheral wall of the motor bracket 6 .

[0140] In some embodiments of the present application, the wall-mounted air conditioner indoor unit 100 may include at least one second connection portion. The second connection portion is disposed on the peripheral wall of the cover plate 9, and the second connection portion matches the first connection portion. The second connection portion is relatively close to the cross-flow fan relative to the sealing portion 91.

[0141] At least one first connection portion corresponds to at least one second connection portion and is adaptively connected, so that the cover plate 9 can be detachably mounted on the motor bracket 6 , which facilitates the installation and maintenance of the outer rotor motor 5 .

[0142] refer to Fig.14 , Fig.16 In this embodiment, the first connection portion is a slot 66, and the second connection portion is a protrusion 92 adapted to the slot 66. The protrusion 92 is provided on the outer peripheral wall of the cover plate 9.

[0143] In this embodiment, the installation efficiency of the cover plate 9 is improved by the engagement between at least one protrusion 92 and at least one slot 66 .

[0144] In some embodiments of the present application, at least one side of the slot 66 is provided with a notch 67. By providing the notch 67, a portion of the peripheral wall of the motor bracket 6 where the slot 66 is located is made elastic, so that the cover plate 9 with the protrusion 92 is conveniently inserted into the motor bracket 6, and the cover plate 9 is pressed and assembled.

[0145] The notch 67 is formed by a portion of the first open end being recessed toward a direction close to the cross-flow fan 3. Fig.15 The notches 67 are disposed on the motor bracket 6 and are located on both sides of the slot 66 .

[0146] In this embodiment, when the cover plate 9 is embedded in the motor bracket 6 through the first opening 69, the protruding protrusion 92 squeezes the peripheral wall of the motor bracket 6, and through the elastic deformation of the peripheral wall of the motor bracket 6, the protrusion 92 squeezes through the first opening 69 and smoothly enters the slot 66, thereby causing the protrusion 92 to be engaged in the slot 66.

[0147] At the same time, part of the peripheral wall of the motor bracket 6 is elastic so that the position of the slot 66 can be moved, which facilitates the removal of the cover plate 9. The depth of the slot 67 is set according to the actual structure.

[0148] In some embodiments of the present application, a first guide surface 93 is provided on the protrusion 92. Fig.16 The first guide surface 93 is disposed on the side wall of the protrusion 92 facing the cross-flow fan 3 .

[0149] Furthermore, a second guide surface 68 is provided on the first open end to cooperate with the first guide surface 93. Fig.15 The second guide surface 68 is arranged corresponding to the slot 66 , and the second guide surface 68 is arranged on the inner wall of the motor bracket 6 .

[0150] In this embodiment, the first guide surface 93 and the second guide surface 68 are provided to guide the installation of the cover plate 9. This arrangement allows the cover plate 9 to be assembled in place by pressing force, reducing the difficulty of assembly and thus improving the assembly efficiency of the air conditioner indoor unit.

[0151] In addition, the first guide surface 93 cooperates with the second guide surface 68 to realize the installation and positioning function of the cover plate 9. When installing the cover plate 9, the first guide surface 93 of the protrusion 92 contacts the second guide surface 68 one by one, and the cover plate 9 can be installed by pressing it hard.

[0152] In some embodiments of the present application, the outer ring 4 is disposed on a side of the end cover 31 close to the outer rotor motor 5, and the rotor 52 is nested inside the outer ring 4. The rotor 52 and the end cover 31 are spaced apart.

[0153] In this embodiment, the gap between the rotor 52 and the end cover 31 is located inside the outer ring 4, so that the outer ring 4 can completely block the gap, preventing water vapor or dust from entering the gap between the stator and the rotor 52 through the gap, which has a good protection effect and improves the safety protection level of the outer rotor motor 5.

[0154] 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.

[0155] It can be understood that when the outer rotor motor 5 is working, the outer ring 4 moves relative to the motor bracket 6 .

[0156] For further reference, Fig.19 A first accommodating portion 42 is formed on the outer peripheral wall of the outer ring member 4, and one end of the motor bracket 6 close to the cross-flow fan extends into the first accommodating portion 42 to cover the gap between the motor bracket 6 and the outer ring member 4, effectively preventing dust, impurities, mosquitoes, water vapor, etc. from entering the gap between the stator and the rotor 52 through the gap, thereby improving the safety protection level of the outer rotor motor 5.

[0157] Specifically, refer to Fig.18 A first connecting rib 41 is arranged on the outer peripheral wall of the outer ring member 4 , and the first connecting rib 41 is arranged in an annular shape along the outer ring of the outer ring member 4 .

[0158] The first connecting rib 41 is bent, and a first accommodating portion 42 having an opening is formed between the first connecting rib 41 and the outer ring 4 , wherein the opening of the first accommodating portion 42 faces away from the cross-flow fan 3 .

[0159] Continue to refer Fig.19 The motor bracket 6 is formed with an annular rib 61 at one end thereof facing the cross-flow fan. The annular rib 61 forms a second opening of the motor bracket 6, and the free end of the annular rib 61 extends through the opening into the first accommodation 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.

[0160] In this embodiment, a labyrinth structure is formed between the motor bracket 6 and the first connecting rib, 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, avoiding blockage that affects 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 5.

[0161] refer to Figure 20 to Figure 22 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. The motor shield 7 and the base 11 together define a motor installation cavity 8, and the outer rotor motor 5 and the motor bracket 6 are accommodated in the motor installation cavity 8.

[0162] 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.

[0163] 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 the 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 solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

[0164] 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 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; An outer rotor motor connected to the cross-flow fan, the outer rotor motor comprising a stator and a rotor with a spacer ring disposed outside the stator; a motor bracket connected to the base, wherein a motor cavity is formed inside the motor bracket, and an end of the motor bracket away from the cross-flow fan has a first opening, and the stator is installed in the motor cavity through the first opening; A cover plate, a portion of which is embedded in the motor bracket through the first opening, and the cover plate is clearance-matched with the motor bracket; A sealing portion, convexly disposed on the outer peripheral wall of the cover plate; During assembly, the cover plate is embedded in the motor bracket, and the sealing portion abuts against the first open end of the motor bracket to seal the assembly gap between the cover plate and the motor bracket.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The distance between the cover plate and the motor bracket is a, where 1 mm <a,a<5mm。 3. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The assembly gap is b, where 0.2 mm <b,b<0.5mm。 4. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: A projection of an outer edge of the sealing portion toward the motor bracket along the axial direction of the cross-flow fan falls into the first open end.

5. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: At least one first connection portion is arranged on the peripheral wall of the motor bracket, and at least one second connection portion is arranged on the peripheral wall of the cover plate. The second connection portion is close to the cross-flow fan relative to the sealing portion, and the first connection portion corresponds to the second connection portion one by one and is adaptably connected.

6. The wall-mounted air conditioner indoor unit according to claim 5, characterized in that: The first connection portion is a slot, and the second connection portion is a protrusion matched with the slot, and the protrusion is arranged on the outer peripheral wall of the cover plate.

7. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that: At least one side of the slot is provided with a notch, the notch is provided on the motor bracket, and the notch is formed by a portion of the first open end being recessed toward a direction close to the cross-flow fan.

8. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that: The protrusion is provided with a first guide surface, the first open end is provided with a second guide surface that cooperates with the first guide surface for guidance, and the second guide surface is provided corresponding to the slot.

9. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The cross-flow fan comprises an end cover, an outer ring is arranged on a side of the end cover close to the outer rotor motor, and the rotor is nested inside the outer ring and spaced apart from the end cover; A first accommodating portion is formed on the outer peripheral wall of the outer ring, and one end of the motor bracket close to the cross-flow fan extends into the first accommodating portion.

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 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; An outer rotor motor connected to the cross-flow fan, the outer rotor motor comprising a stator and a rotor with a spacer ring disposed outside the stator; a motor bracket connected to the base, wherein a motor cavity is formed inside the motor bracket, and an end of the motor bracket away from the cross-flow fan has a first opening, and the stator is installed in the motor cavity through the first opening; A cover plate, one end of which is embedded in the motor bracket through the first opening, and the cover plate and the motor bracket are in clearance fit; A sealing portion, disposed at the other end of the cover plate, the sealing portion protruding relative to the cover plate in a direction away from the central axis of the cross-flow fan, and the sealing portion and the cover plate being integrally injection-molded; During assembly, the cover plate is embedded in the motor bracket, and the sealing portion abuts against the first open end of the motor bracket to seal the assembly gap between the cover plate and the motor bracket.

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