A hanging type air conditioner indoor unit

Abstract

The present application discloses a wall-mounted air-conditioning indoor unit, comprising a casing, a heat exchanger, a heat exchange fan, a driving motor, a motor casing and a buffer; the heat exchanger, the heat exchange fan and the driving motor are respectively arranged inside the casing, and the heat exchange fan is located on the leeward side of the heat exchanger; the driving motor and the heat exchange fan are arranged along the axial direction of the heat exchange fan, and are used to drive the heat exchange fan to operate; the driving motor comprises an outer rotor, a stator and a connecting shaft; the outer rotor is connected to an end of the heat exchange fan facing the driving motor; an accommodating portion is provided at an end of the outer rotor away from the heat exchange fan; at least part of the stator is arranged in the accommodating portion; a first gap is provided between a side of the stator facing the heat exchange fan and an inner wall of the accommodating portion along the axial direction of the heat exchange fan; the connecting shaft is connected to the outer rotor and the stator; a mounting portion is provided for the connecting shaft to pass through; the motor casing is installed in the casing, and at least part of the stator is arranged in the motor casing; the buffer is provided on the inner wall of the motor casing facing the heat exchange fan, and the buffer cooperates with an end of the connecting shaft away from the heat exchange fan.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a wall-mounted air conditioning indoor unit. Background Art

[0002] The motor is one of the core components of the air conditioner indoor unit. It drives the fan to rotate, sucks in the indoor air, cools or heats it through the heat exchanger, and then blows the treated air out to adjust the indoor temperature. The performance of the motor directly affects the operating efficiency and cooling / heating effect of the air conditioner indoor unit. An efficient and stable motor can ensure that the air conditioner indoor unit maintains stable performance during long-term operation and reduce energy consumption.

[0003] The outer rotor motor is a common type of motor. In the indoor unit of the wall-mounted air conditioner using the outer rotor motor, the stator is installed in the housing as the motor body, and the outer rotor is connected to the fan. One end of the heat exchange fan is usually provided with a receiving portion for installing the outer rotor, and at least part of the stator is arranged in the receiving portion so that the outer rotor and the stator cooperate with each other. There is usually a gap between the stator and the inner wall of the receiving portion along the axial direction of the heat exchange fan to ensure the reliability of the relative rotation between the outer rotor and the stator.

[0004] During production and transportation, the heat exchange fan is prone to move along its axial direction, which may cause the outer rotor and the stator to collide with each other, causing damage to the motor and / or the fan.

[0005] In addition, there is usually a gap between the stator and the accommodating portion along the radial direction of the stator, and the gap is arranged along the circumferential direction of the stator to ensure the reliability of the relative rotation between the outer rotor and the stator. However, this also causes the outer rotor to be in a suspended state relative to the stator. The outer rotor is easily deflected downward under the action of the fan's gravity, resulting in uneven distribution of the gap, and the heat exchange fan is prone to generate large vibrations and noise when running. Utility Model Content

[0006] In view of the deficiencies existing in the related art, the present application provides a wall-mounted air-conditioning indoor unit which can protect the heat exchange fan when the heat exchange fan moves axially to prevent the heat exchange fan from being damaged.

[0007] The present application provides a wall-mounted air conditioner indoor unit, comprising:

[0008] The casing at least comprises a casing air inlet and a casing air outlet, wherein the casing air inlet is arranged at the top of the casing, and the casing air outlet is arranged at the front bottom of the casing; the casing air inlet and the casing air outlet extend along the length direction of the casing respectively;

[0009] The heat exchanger is arranged inside the casing and close to the air inlet of the casing; the heat exchanger is installed on the base of the casing;

[0010] A heat exchange fan is arranged inside the casing, and the heat exchange fan is located on the leeward side of the heat exchanger; the axial direction of the heat exchange fan is arranged along the length direction of the casing;

[0011] The driving motor is arranged inside the casing; the driving motor and the heat exchange fan are arranged along the axial direction of the heat exchange fan;

[0012] The drive motor further comprises:

[0013] a stator mounted on the housing;

[0014] The outer rotor is provided with an insertion portion for at least a portion of the stator to be inserted therein; the outer rotor can rotate relative to the stator to drive the heat exchange fan to rotate;

[0015] A connecting shell is connected to one end of the heat exchange fan facing the driving motor; a receiving portion is defined in the connecting shell, and the outer rotor is arranged in the receiving portion; the receiving portion is communicated with the extending portion;

[0016] A first gap is formed between a side of the stator facing the heat exchange fan and a side of the connecting shell facing away from the heat exchange fan along the axial direction of the heat exchange fan;

[0017] A connecting shaft is arranged along the axial direction of the heat exchange fan; one end of the connecting shaft in the length direction is connected to the connecting shell, and the other end of the connecting shaft in the length direction is connected to the first bearing;

[0018] A first mounting portion, through which the connecting shaft passes; the first mounting portion is arranged to penetrate the stator along the axial direction of the heat exchange fan;

[0019] A motor housing is mounted on the casing, and at least a portion of the stator is disposed in the motor housing;

[0020] The buffer is arranged on the inner wall of the motor housing facing the heat exchange fan. The buffer is arranged corresponding to the end of the connecting shaft away from the heat exchange fan, so that when the heat exchange fan drives the outer rotor to move toward the stator through the connecting housing, the connecting shaft and the buffer contact each other.

[0021] The technical solution arranges a buffer in the motor housing and utilizes the contact between the buffer and the connecting shaft so that the buffer blocks, limits and buffers the outer rotor through the connecting shaft, thereby preventing the outer rotor and the stator from colliding with each other and damaging the drive motor and / or the heat exchange fan.

[0022] In some of the embodiments, a projection of the connecting shaft along the axial direction of the heat exchange fan is located within a projection of a side of the buffer member facing the connecting shaft along the axial direction of the heat exchange fan.

[0023] In some embodiments, a second gap is provided along the axial direction of the heat exchange fan between one end of the connecting shaft away from the heat exchange fan and the side of the buffer member facing the connecting shaft; the axial dimension of the second gap along the heat exchange fan is L2, and the axial dimension of the first gap along the heat exchange fan is L1, and L1 and L2 satisfy the relationship: L1>L2.

[0024] In some of the embodiments, a constraint portion is provided on the inner wall of the motor housing, the constraint portion protrudes from the inner wall of the motor housing, and the constraint portion is used to constrain the stator; one end of the connecting shell away from the heat exchange fan extends into the motor housing, and the end of the connecting shell extending into the interior of the motor housing and the side of the connecting shell facing the constraint portion have a third gap along the axial direction of the heat exchange fan; the axial dimension of the third gap along the heat exchange fan is L3, and L3 and L2 satisfy the relationship: L3>L2.

[0025] In some embodiments, the motor housing includes a shell and a cover; a through cavity is defined inside the shell and arranged along the axial direction of the heat exchange fan; at least part of the stator is arranged in the through cavity; the cover is arranged at an opening of the shell on the side away from the heat exchange fan in an openable and closable manner; and the buffer is arranged on the side of the cover facing the through cavity.

[0026] In some of the embodiments, the middle portion of the cover body has a fixing portion, which is communicated with the interior of the motor housing; and the buffer is disposed on the fixing portion.

[0027] In some embodiments, the outer diameter of the connecting shaft away from the heat exchange fan is V, the distance from any point on the outer periphery of the buffer member facing the connecting shaft to the axis of the connecting shaft is T, and T and V satisfy the relationship: T>V.

[0028] The present application also provides a wall-mounted air conditioner indoor unit, comprising:

[0029] The casing at least comprises a casing air inlet and a casing air outlet, wherein the casing air inlet is arranged at the top of the casing, and the casing air outlet is arranged at the front bottom of the casing; the casing air inlet and the casing air outlet extend along the length direction of the casing respectively;

[0030] A heat exchanger is arranged inside the casing and close to the air inlet of the casing;

[0031] A heat exchange fan is arranged inside the casing, and the heat exchange fan is located on the leeward side of the heat exchanger; the axial direction of the heat exchange fan is arranged along the length direction of the casing;

[0032] A driving motor is arranged inside the casing and is used to drive the heat exchange fan to operate; the driving motor and the heat exchange fan are arranged along the axial direction of the heat exchange fan;

[0033] The drive motor further comprises:

[0034] a stator mounted on the housing;

[0035] The outer rotor is provided with an insertion portion for at least a portion of the stator to be inserted therein; the outer rotor can rotate relative to the stator to drive the heat exchange fan to rotate;

[0036] A connecting shell is connected to one end of the heat exchange fan facing the driving motor; a receiving portion is defined in the connecting shell, and the outer rotor is arranged in the receiving portion; the receiving portion is communicated with the extending portion;

[0037] A connecting shaft is arranged along the axial direction of the heat exchange fan; first bearings are respectively arranged at both ends of the connecting shaft in the length direction;

[0038] A first mounting portion is provided on the stator and is used for the connecting shaft to extend into one end of the stator; a bearing sleeve for connecting the first bearing is provided in the first mounting portion;

[0039] The second mounting portion is arranged on the connecting shell and is used for allowing the connecting shaft to extend into one end of the heat exchange fan; a bearing sleeve for connecting to the first bearing is arranged in the second mounting portion.

[0040] The technical solution arranges first bearings at both ends of the axial direction of the connecting shaft, so that the connecting shaft is connected to the connecting shell and the stator correspondingly through the two first bearings, so that the connecting shaft supports the relative rotation between the outer rotor and the stator, and avoids the axial downward deviation of the outer rotor from the stator axis under the action of the gravity of the heat exchange fan, thereby ensuring that the outer rotor and the stator are arranged coaxially.

[0041] In some of the embodiments, the heat exchange fan is integrally formed with the outer rotor; and one end of the connecting shaft away from the stator is connected to the heat exchange fan.

[0042] In some of the embodiments, a support shaft is provided at one end of the heat exchange fan away from the outer rotor, and the support shaft is connected to a second bearing; the casing is provided with a bearing seat for installing the second bearing, and the bearing seat is arranged corresponding to the end of the heat exchange fan away from the outer rotor.

[0043] In the above embodiment, a wall-mounted air-conditioning indoor unit is provided with a buffer component on the inner wall of the motor housing facing the heat exchange fan. When the heat exchange fan moves toward the stator, the heat exchange fan drives the connecting shaft to move synchronously. The connecting shaft and the buffer component contact each other so that the buffer component buffers the connecting shaft to avoid a hard collision between the connecting shaft and the inner wall of the motor housing and damage to the heat exchange fan and / or the outer rotor.

[0044] A wall-mounted air conditioner indoor unit is provided with first bearings at both ends of the axial direction of a connecting shaft, so that the connecting shaft is connected to an outer rotor and a stator correspondingly through the two first bearings, so that the connecting shaft supports the relative rotation between the outer rotor and the stator, and prevents the axial direction of the outer rotor from deviating downward from the stator axis under the action of the gravity of a heat exchange fan, thereby ensuring that the outer rotor and the stator are arranged coaxially. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a structural schematic diagram of an embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0046] Figure 2It is a schematic diagram of the structure of the interior of an embodiment of a wall-mounted air conditioner indoor unit of the present application (without a heat exchanger);

[0047] Figure 3 This is a schematic diagram of the internal structure of an embodiment of the wall-mounted air conditioner indoor unit of the present application when the outer cover is not installed;

[0048] Figure 4 This is a structural schematic diagram of a heat exchange fan and a drive motor installed on a base in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0049] Figure 5 This is a schematic diagram of the structure of a heat exchange fan, a drive motor, and a motor housing connected to each other in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0050] Figure 6 This is a schematic structural diagram of the heat exchange fan and the drive motor when assembled in one embodiment of the wall-mounted air conditioner indoor unit of the present application;

[0051] Figure 7 It is a cross-sectional view of a heat exchange fan and a drive motor mounted on a motor housing when they are connected to each other in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0052] Figure 8 This is a schematic structural diagram of an embodiment of a wall-mounted air conditioner indoor unit of the present application in which the outer rotor and the heat exchange fan are integrally formed;

[0053] Fig. 9 It is a cross-sectional view from another angle when a heat exchange fan and a drive motor mounted on a motor housing are connected to each other in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0054] Fig.10 This is a cross-sectional view of the assembly of the stator and the motor housing in one embodiment of the wall-mounted air conditioner indoor unit of the present application;

[0055] Fig.11 It is a cross-sectional view of the assembly of the buffer member and the cover body in one embodiment of the wall-mounted air conditioner indoor unit of the present application;

[0056] Fig.12 This is a structural schematic diagram of a cover body in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0057] Fig.13 It is a schematic diagram of the structure of a buffer component in one embodiment of a wall-mounted air conditioner indoor unit of the present application.

[0058] In the figure,

[0059] 100, housing; 200, heat exchange fan; 300, heat exchanger; 400, electrical box; 500, motor shield; 600, bearing seat; 700, motor housing; 800, drive motor; 900, bearing sleeve;

[0060] 101, air inlet of the casing; 102, air outlet of the casing;

[0061] 110, outer cover; 120, base;

[0062] 210, support shaft;

[0063] 510. Ears;

[0064] 710, housing; 720, cover; 730, buffer; 740, shock-absorbing rubber;

[0065] 711. Constraint portion; 712. Connecting portion;

[0066] 721, fixed part;

[0067] 731, first limiting portion; 732, second limiting portion; 733, passing portion;

[0068] 801, first gap; 802, second gap; 803, third gap;

[0069] 810, connecting shell; 820, stator; 830, connecting shaft; 840, outer rotor;

[0070] 811, accommodating portion; 812, second mounting portion;

[0071] 821, first installation part;

[0072] 831. First bearing. DETAILED DESCRIPTION

[0073] In order to make the purpose and implementation method of the present application clearer, the exemplary implementation method of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0074] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0075] The terms "first", "second", "third", etc. in the specification and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0076] The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0077] The wall-mounted air conditioner indoor unit provided in the embodiment of the present application may have various implementation forms. The wall-mounted air conditioner indoor unit may be a wall-mounted air conditioner indoor unit with a fresh air function, or may be a conventional wall-mounted air conditioner indoor unit.

[0078] like Figure 1 As shown, a wall-mounted air-conditioning indoor unit provided in the present application includes a casing 100, and the casing 100 is used to form the overall appearance of the wall-mounted air-conditioning indoor unit; the casing 100 has a top and a bottom, the top of the casing 100 and the bottom of the casing 100 are opposite sides, and the height direction of the casing 100 is from the top of the casing 100 to the bottom of the casing 100; the right side of the casing 100 and the left side of the casing 100 are opposite ends, and the length direction of the casing 100 is from the left side of the casing 100 to the right side of the casing 100; the front side of the casing 100 and the back side of the casing 100 are opposite sides, and the thickness direction of the casing 100 is from the front side of the casing 100 to the back side of the casing 100.

[0079] In practical applications, the housing 100 is usually disposed on the top of a room or in an upper space of a room, wherein the rear side of the housing 100 is disposed toward a wall, and the front side of the housing 100 is disposed toward a user.

[0080] like Figure 1 As shown, the casing 100 includes a casing air inlet 101, which is arranged at the top of the casing 100, and indoor air enters the interior of the casing 100 through the casing air inlet 101; the casing air inlet 101 extends along the length direction of the casing 100 to increase the air intake volume of the indoor unit of the wall-mounted air conditioner.

[0081] like Figure 2 and Figure 3 As shown, the casing 100 includes a casing air outlet 102, which is opened on the front side of the casing 100 and arranged close to the bottom of the casing 100, that is, the casing air outlet 102 is located on the front lower side of the casing 100; the air inside the casing 100 is output to the room through the casing air outlet 102; the casing air outlet 102 extends along the length direction of the casing 100 to increase the air outlet of the indoor unit of the wall-mounted air conditioner.

[0082] like Figure 2 As shown, the housing 100 includes an outer cover 110 , the outer cover 110 defines an outer cover cavity with an opening toward the rear side of the housing 100 , and the housing air inlet 101 is opened at the top of the outer cover 110 .

[0083] like Figure 3 and Figure 4 As shown, the housing 100 includes a base 120 , which is disposed at the opening of the outer cover cavity, and the base 120 and the outer cover 110 are detachably connected to each other.

[0084] A base opening is provided at the front bottom of the base 120 , and a cover opening is provided at the front bottom of the cover 110 . The opening of the base 120 and the opening of the cover 110 are arranged correspondingly to define together a housing air outlet 102 .

[0085] like Figure 3 As shown, the wall-mounted air conditioner indoor unit includes a heat exchanger 300, which is installed on the base 120 and located inside the casing 100. The air in the casing 100 is heated by the heat exchanger 300 after contacting the heat exchanger 300 to form conditioned air, and the conditioned air is output to the room through the casing air outlet 102 to meet the user's cooling or heating needs.

[0086] The heat exchanger 300 is disposed close to the air inlet 101 of the casing, so that the heat exchanger 300 can timely exchange heat for the air entering the casing 100 .

[0087] It should be noted that the air-conditioning wind can be cold air, hot air, or even normal temperature air.

[0088] like Figure 2 and Figure 4 As shown, the wall-mounted air conditioner indoor unit includes a heat exchange fan 200, which is installed on the base 120 and located inside the casing 100. The heat exchange fan 200 is located on the leeward side of the heat exchanger 300, and the axial direction of the heat exchange fan 200 extends along the length direction of the casing 100.

[0089] By operating the heat exchange fan 200, indoor air is introduced into the interior of the casing 100 through the casing air inlet 101, and after heat exchange through the heat exchanger 300 to form conditioned air, the conditioned air flows into the room through the casing air outlet 102.

[0090] It should be noted that, in a wall-mounted air conditioner indoor unit, the heat exchange fan 200 is usually a cross-flow fan.

[0091] like Fig. 9 As shown, one end of the heat exchange fan 200 in the length direction is connected to a support shaft 210, and the support shaft 210 is connected to a second bearing.

[0092] like Figure 4 and Figure 5As shown, the base 120 is provided with a bearing seat 600, and the bearing seat 600 is arranged near one end of the support shaft 210 of the heat exchange fan 200, and the second bearing is installed on the bearing seat 600, so that the support shaft 210 is connected to the base 120 through the second bearing, so that the base 120 supports the operation of the heat exchange fan 200, thereby increasing the stability of the heat exchange fan 200 during operation.

[0093] It should be noted that the bearing seat 600 is made of a soft material such as rubber or silicone to facilitate the installation of the second bearing on the bearing seat 600 .

[0094] like Figure 6 As shown, the wall-mounted air conditioner indoor unit includes a drive motor 800, which is located at one end of the heat exchange fan 200 away from the support shaft 210, and the drive motor 800 is used to drive the heat exchange fan 200 to operate; the drive motor 800 is installed on the base 120 and is located inside the casing 100, and the drive motor 800 and the heat exchange fan 200 are arranged along the axial direction of the heat exchange fan 200.

[0095] like Figure 3 As shown, the wall-mounted air conditioner indoor unit includes an electrical box 400, which is installed on the base 120. The electrical box 400 is arranged close to the drive motor 800. The electrical box 400 is installed with electrical components such as a control board. The control board is connected to the drive motor 800 through a line to control the operation of the drive motor 800. This is common knowledge in the art and will not be repeated here.

[0096] In the present application, the driving motor 800 is an outer rotor motor.

[0097] like Figure 7-Figure 9 As shown, the driving motor 800 includes an outer rotor 840, which is a rotatable part of the driving motor 800. The outer rotor 840 is used to drive the heat exchange fan 200 to rotate synchronously.

[0098] The outer rotor 840 is usually installed in the connecting shell 810, and the connecting shell 810 is connected to one end of the heat exchange fan 200 facing the driving motor 800. It should be noted that the connecting shell 810 and the outer rotor 840 rotate synchronously.

[0099] The connecting shell 810 can be detachably connected to the heat exchange fan 200, or can be integrally formed with the heat exchange fan 200. In the present application, the heat exchange fan 200 and the connecting shell 810 are integrally formed, which can increase the firmness of the connection between the heat exchange fan 200 and the connecting shell 810 on the one hand, and facilitate the connection between the connecting shell 810 and the heat exchange fan 200 on the other hand.

[0100] like Figure 6 and Figure 7 As shown,

[0101] The driving motor 800 includes a stator 820 , which is a non-rotatable part of the driving motor 800 . The stator 820 cooperates with an outer rotor 840 , and the outer rotor 840 can rotate relative to the stator 820 .

[0102] The outer rotor 840 is provided with an insertion portion, and a portion of the stator 820 is inserted into the insertion portion to cooperate with the outer rotor 840 .

[0103] It should be noted that the specific composition of the outer rotor 840 and the specific composition of the stator 820, as well as the connection shell 810 being rotatable relative to the stator 820, belong to the prior art in this field and will not be described in detail here.

[0104] There is a gap between the outer rotor 840 and the stator 820 along the radial direction of the stator 820 to prevent the stator 820 and the outer rotor 840 from contacting each other to generate friction or collision when the outer rotor 840 rotates relative to the stator 820, thereby ensuring the reliability of the rotation of the connecting shell 810.

[0105] like Fig.11 As shown, an accommodating portion 811 is provided at one end of the connecting shell 810 away from the heat exchange fan 200, the outer rotor 840 is disposed in the accommodating portion 811, the extending portion is connected to the accommodating portion 811, and at least part of the stator 820 is disposed in the accommodating portion 811, so that the stator 820 and the outer rotor 840 cooperate with each other.

[0106] In the present application, the accommodating portion 811 is a cavity provided at one end of the connecting shell 810 facing the stator 820, and the opening of the cavity is arranged toward the stator 820 so that the side of the stator 820 facing the heat exchange fan 200 can extend into the cavity, thereby enabling the stator 820 and the outer rotor 840 to cooperate with each other.

[0107] The accommodation portion 811 includes a peripheral wall, which is arranged along the circumference of the accommodation portion 811 ; the peripheral wall is arranged on a side of the connecting shell 810 facing the stator 820 .

[0108] like Fig. 9 As shown, there is a first gap 801 along the axial direction of the heat exchange fan 200 between the side of the stator 820 facing the heat exchange fan 200 and the side of the connecting shell 810 facing the stator 820 to prevent the stator 820 and the connecting shell 810 from contacting each other and generating friction when the connecting shell 810 rotates relative to the stator 820, thereby affecting the rotation of the outer rotor 840.

[0109] like Figure 7As shown, the driving motor 800 includes a connecting shaft 830, and the axial direction of the connecting shaft 830 is arranged along the axial direction of the heat exchange fan 200; one end of the connecting shaft 830 is connected to the connecting shell 810, and the other end of the connecting shaft 830 is connected to the stator 820, so that the connecting shaft 830 constrains the stator 820 and the connecting shell 810, so that the outer rotor 840 is arranged coaxially with the stator 820, thereby increasing the reliability of the relative rotation between the two.

[0110] like Figure 7 and Fig. 9 As shown, a first bearing 831 is provided at one end of the connecting shaft 830 connected to the stator 820 , and the connecting shaft 830 is rotatably connected to the stator 820 via the first bearing 831 .

[0111] like Figure 7 As shown, the stator 820 is provided with a first mounting portion 821, and a bearing sleeve 900 is provided in the first mounting portion 821. The bearing sleeve 900 is used to connect the first bearing 831. The first bearing 831 located at one end of the connecting shaft 830 facing the stator 820 is arranged in the bearing sleeve 900 of the first mounting portion 821, so that the connecting shaft 830 and the stator 820 are connected to each other.

[0112] In the present application, the first mounting portion 821 is a through cavity provided in the stator 820 , and the through cavity is provided along the axial direction of the heat exchange fan 200 .

[0113] One end of the connecting shaft 830 connected to the connecting shell 810 is provided with a first bearing 831 , and the connecting shaft 830 is rotatably connected to the connecting shell 810 via the first bearing 831 .

[0114] like Figure 8 As shown, the connecting shell 810 is provided with a second mounting portion 812, and a bearing sleeve 900 is provided in the second mounting portion 812. The bearing sleeve 900 is used to connect the first bearing 831. The first bearing 831 located at one end of the connecting shaft 830 facing the connecting shell 810 is arranged in the bearing sleeve 900 of the second mounting portion 812, so that the connecting shaft 830 and the connecting shell 810 are connected to each other.

[0115] In the present application, the second mounting portion 812 is a cavity provided in the connecting shell 810, the cavity is provided along the axial direction of the heat exchange fan 200, the cavity includes an opening provided toward the stator 820, and the second mounting portion 812 is provided corresponding to the first mounting portion 821 so that the connecting shaft 830 can pass through the second mounting portion 812 and extend into the first mounting portion 821.

[0116] like Figure 7 and Fig.10 As shown, in order to facilitate the installation and fixation of the stator 820, the stator 820 is usually arranged in the motor housing 700, and the motor housing 700 is installed on the base 120 by fasteners such as bolts or screws to ensure the firmness of the installation of the stator 820.

[0117] like Fig.10 As shown, a connecting portion 712 is provided on the outer periphery of the motor housing 700 , and the connecting portion 712 is connected to the base 120 via fasteners such as bolts or screws, so that the motor housing 700 is installed on the base 120 .

[0118] In some embodiments, two connection parts 712 are provided, and the two connection parts 712 are provided along the thickness direction of the housing 100 corresponding to the third mounting part to increase the firmness of the connection between the motor housing 700 and the base 120 .

[0119] During the production and transportation of the wall-mounted air conditioner indoor unit, the heat exchange fan 200 is prone to move along its axial direction, causing the heat exchange fan 200 to easily collide with components such as the casing 100 or the drive motor 800, resulting in damage to the heat exchange fan 200 and / or the drive motor 800.

[0120] Since the bearing seat 600 is located at one end of the heat exchange fan 200 axially away from the drive motor 800, and the bearing seat 600 is usually made of a softer material such as rubber or silicone, in the present application, the bearing seat 600 is used to limit and block the movement of the heat exchange fan 200 along the axial direction of the heat exchange fan 200 toward the bearing seat 600, so that the bearing seat 600 buffers the heat exchange fan 200.

[0121] Specifically, the bearing seat 600 and one end of the heat exchange fan 200 close to the bearing seat 600 are arranged opposite to each other along the axial direction of the heat exchange fan 200; when the heat exchange fan 200 moves along its axial direction toward the direction away from the bearing seat 600 of the drive motor 800, one end of the heat exchange fan 200 facing the bearing seat 600 contacts the bearing seat 600, so that the bearing seat 600 buffers the heat exchange fan 200 and protects the heat exchange fan 200.

[0122] Since the heat exchange fan 200 is interconnected with the connecting shell 810, and the connecting shaft 830 is interconnected with the connecting shell 810, when the heat exchange fan 200 moves along its axial direction toward the stator 820, the connecting shell 810 and the connecting shaft 830 will also move axially synchronously. Therefore, in the present application, a buffer 730 is arranged on the inner wall of the motor housing 700 facing the heat exchange fan 200, so that the buffer 730 and the end of the connecting shaft 830 away from the heat exchange fan 200 cooperate with each other. When the heat exchange fan 200 drives the outer rotor 840 to move toward the stator 820 through the connecting shell 810, the connecting shaft 830 and the buffer 730 contact each other, so that the buffer 730 blocks the connecting shaft 830 and prevents the connecting shell 810 from continuing to move. At the same time, the buffer 730 can also avoid the rigid collision between the connecting shaft 830 and the motor housing 700, thereby avoiding damage to the drive motor 800 and / or the heat exchange fan 200.

[0123] It should be noted that the buffer member 730 is made of a soft material such as rubber or silicone.

[0124] In the above-mentioned wall-mounted air-conditioning indoor unit, the bearing seat 600 and the buffer member 730 are correspondingly arranged at the two ends of the axial direction of the heat exchange fan 200. When the heat exchange fan 200 moves along its axial direction, the heat exchange fan 200 contacts the bearing seat 600 or the buffer member 730 to prevent the heat exchange fan 200 from having a hard collision with other components.

[0125] The projection of the connecting shaft 830 along the axial direction of the heat exchange fan 200 is located within the projection of the buffer member 730 along the axial direction of the heat exchange fan 200 on the side facing the connecting shaft 830, so that the buffer member 730 can fully contact the connecting shaft 830. When the heat exchange fan 200 moves along its axial direction toward the stator 820, the buffer member 730 can reliably contact the connecting shaft 830 to prevent the heat exchange fan 200 from continuing to move toward the stator 820.

[0126] In some embodiments, Fig.10 As shown, the center of the buffer 730 is located on the axis of the connecting shaft 830; the outer diameter of the connecting shaft 830 away from the end of the heat exchange fan 200 is V, and the distance from any point on the outer periphery of the buffer 730 on the side of the connecting shaft 830 to the axis of the connecting shaft 830 is T, and T and V satisfy the relationship: T>V, so that the buffer 730 can reliably contact the connecting shaft 830.

[0127] If T=V, the area of ​​the connecting shaft 830 facing the buffer member 730 is the same as the area of ​​the buffer member 730 facing the connecting shaft 830. If the connecting shaft 830 deviates along the radial direction of the heat exchange fan 200, the connecting shaft 830 cannot fully contact the buffer member 730, which may reduce the buffering effect of the buffer member 730 on the heat exchange fan 200.

[0128] If T<V, the area of ​​the connecting shaft 830 facing the buffer 730 end is larger than the area of ​​the buffer 730 facing the connecting shaft 830 side, the buffer 730 cannot fully contact with the connecting shaft 830, and the buffer 730 has a poor buffering effect on the heat exchange fan 200. When the heat exchange fan 200 moves along its axial direction close to the stator 820, the connecting shaft 830 may contact with the inner wall of the motor housing 700 facing the heat exchange fan 200, causing damage to the heat exchange fan 200.

[0129] like Fig. 9 As shown, there is a second gap 802 along the axial direction of the heat exchange fan 200 between one end of the connecting shaft 830 away from the heat exchange fan 200 and the side of the buffer member 730 toward the connecting shaft 830 to prevent the connecting shaft 830 and the buffer member 730 from contacting each other and affecting the operation of the heat exchange fan 200 when the heat exchange fan 200 does not move axially.

[0130] The axial dimension of the first gap 801 along the heat exchange fan 200 is L1, and the axial dimension of the second gap 802 along the heat exchange fan 200 is L2. L1 and L2 satisfy the relationship: L1>L2, so that when the heat exchange fan 200 moves axially toward the stator 820, the connecting shaft 830 can first interact with the buffer 730, so that the buffer 730 prevents the heat exchange fan 200 from continuing to move through the connecting shaft 830.

[0131] If L1<L2, when the heat exchange fan 200 moves toward the stator 820, the bottom wall of the accommodating portion 811 first collides hard with the stator 820, and when the bottom wall of the accommodating portion 811 collides hard with the stator 820, the connecting shaft 830 is not in contact with the buffer member 730, so the buffer member 730 cannot effectively play a buffering role.

[0132] If L1=L2, when the heat exchange fan 200 moves toward the stator 820, when the bottom wall of the accommodating portion 811 contacts the stator 820, the connecting shaft 830 and the buffer member 730 contact each other. Although the buffer member 730 can play a certain buffering role on the connecting shaft 830, due to the mutual collision between the bottom wall of the accommodating portion 811 and the stator 820, the heat exchange fan 200 and / or the stator 820 are subjected to impact force, the heat exchange fan 200 and the stator 820 are easily damaged, and the buffering effect of the buffer member 730 is not good.

[0133] like Fig.10 As shown, a restraining portion 711 is provided on the inner wall of the motor housing 700 . The restraining portion 711 is protruding from the inner wall of the motor housing 700 . The restraining portion 711 is used to restrain the stator 820 so that the stator 820 is installed in the motor housing 700 .

[0134] An adapter portion is provided on the outer periphery of the stator 820, and the side of the adapter portion facing the heat exchange fan 200 cooperates with the side of the constraint portion 711 facing the heat exchange fan 200 to prevent the stator 820 from continuing to move along the axial direction of the heat exchange fan 200 toward the direction close to the heat exchange fan 200, thereby limiting the setting position of the stator 820 in the through cavity.

[0135] like Fig. 9 As shown, one end of the connecting shell 810 away from the heat exchange fan 200 extends into the motor shell 700, and the end of the connecting shell 810 extending into the interior of the motor shell 700 and the side of the constraint portion 711 facing the connecting shell 810 have a third gap 803 along the axial direction of the heat exchange fan 200 to prevent the connecting shell 810 and the constraint portion 711 from contacting each other and generating friction when the connecting shell 810 rotates relative to the stator 820, so as to ensure the reliability of the rotation of the connecting shell 810.

[0136] The axial dimension of the third gap 803 along the heat exchange fan 200 is L3, and L3 and L2 satisfy the relationship: L3>L2, so that when the heat exchange fan 200 moves along its axial direction toward the stator 820, the connecting shaft 830 can first interact with the buffer member 730, so that the buffer member 730 prevents the heat exchange fan 200 from continuing to move through the connecting shaft 830.

[0137] If L3<L2, when the heat exchange fan 200 moves toward the stator 820, the connecting shell 810 first collides hard with the constraint part 711, and when the connecting shell 810 collides hard with the constraint part 711, the connecting shaft 830 does not contact the buffer part 730, so the buffer part 730 cannot effectively play a buffering role.

[0138] If L3=L2, when the heat exchange fan 200 moves toward the stator 820, when the connecting shell 810 contacts the constraint part 711, the connecting shaft 830 and the buffer part 730 contact each other. Although the buffer part 730 can play a certain buffering role on the connecting shaft 830, since the connecting shell 810 and the constraint part 711 also collide with each other, the heat exchange fan 200 and the connecting shell 810 are subjected to impact force, and the heat exchange fan 200 and the connecting shell 810 are easily damaged. Therefore, the buffering effect of the buffer part 730 is not good.

[0139] It should be noted that in the above-mentioned wall-mounted air-conditioning indoor unit, other gaps may be defined and formed between the connecting shell 810 and the stator 820, and between the connecting shell 810 and the motor shell 700 along the axial direction of the heat exchange fan 200, which are not listed here one by one.

[0140] In the gaps defined along the axial direction of the heat exchange fan 200 between the connecting shell 810 and the stator 820 and between the connecting shell 810 and the motor shell 700, the second gap 802 between the connecting shaft 830 and the buffer member 730 is the smallest along the axial direction of the heat exchange fan 200 to ensure that when the heat exchange fan 200 moves along its axial direction toward the stator 820, the connecting shaft 830 first contacts the buffer member 730.

[0141] In the above-mentioned wall-mounted air-conditioning indoor unit, when the heat exchange fan 200 moves along the axial direction of the heat exchange fan 200 in a direction away from the driving motor 800, the heat exchange fan 200 and the bearing seat 600 contact each other, and the bearing seat 600 buffers the heat exchange fan 200 to prevent the heat exchange fan 200 from being damaged by a hard collision with the casing 100 or other components.

[0142] When the heat exchange fan 200 moves along the axial direction of the heat exchange fan 200 toward the stator 820, the heat exchange fan 200 drives the connecting shaft 830 to move synchronously. The connecting shaft 830 first contacts the buffer component 730, and the buffer component 730 buffers the connecting shaft 830 to avoid the accommodating portion 811 and the stator 820 colliding with each other or the connecting shell 810 and the constraint portion 711 colliding with each other to damage the heat exchange fan 200 and / or the drive motor 800.

[0143] It should be noted that since the motor housing 700 is installed on the base 120 and the stator 820 is installed on the motor housing 700, the stator 820 is fixedly connected relative to the base 120. When the heat exchange fan 200 moves along its axial direction toward the stator 820, the position of the stator 820 relative to the base 120 remains unchanged, and the heat exchange fan 200 drives the connecting shaft 830 to move synchronously. The connecting shaft 830 moves axially relative to the stator 820, and the connecting shaft 830 contacts the buffer 730.

[0144] In order to facilitate the stator 820 to be disposed in the motor housing 700 or to facilitate the stator 820 to be removed from the motor housing 700, the motor housing 700 is designed as a split structure in the present application.

[0145] Specifically, Figure 7 and Fig.10 As shown, the motor housing 700 includes a shell 710, and a through cavity is defined inside the shell 710. The through cavity is arranged along the length direction of the housing 100, and at least part of the stator 820 is arranged in the through cavity; the shell 710 is provided with a through portion, and the stator 820 leaves the through cavity through the through portion or is arranged in the through cavity.

[0146] It should be noted that the through portion is an opening at one end of the through cavity away from the heat exchange fan 200 .

[0147] The outer diameter of the stator 820 is smaller than or equal to the outer diameter of the opening of the through portion, so that the stator 820 can enter and exit the through cavity through the through portion.

[0148] The inner diameter of at least a portion of the through cavity is greater than or equal to the outer diameter of the stator 820, so that the stator 820 is disposed in the through cavity.

[0149] like Fig. 9 As shown, the side of the connecting shell 810 facing away from the heat exchange fan 200 extends into the through cavity from the through cavity toward the opening at one end of the heat exchange fan 200, so that part of the stator 820 can be arranged in the accommodating portion 811 to cooperate with the outer rotor 840.

[0150] It should be noted that the connection portion 712 is disposed on the outer periphery of the housing 710 so that the housing 710 is mounted on the base 120. The constraint portion 711 is disposed on the inner wall of the housing 710 to limit the location of the stator 820 in the through cavity.

[0151] like Fig. 9As shown, the motor housing 700 includes a cover body 720, which is disposed at the through portion in an openable and closable manner to block the opening of the through cavity away from one end of the heat exchange fan 200, thereby firmly setting the stator 820 in the through cavity.

[0152] The cover body 720 is detachably connected to the shell body 710 so that the cover body 720 is arranged at the passing portion in an openable and closable manner, wherein when the cover body 720 and the shell body 710 are connected to each other, the cover body 720 is closed; when the cover body 720 and the shell body 710 are separated from each other, the cover body 720 is opened.

[0153] It should be noted that the opening and closing arrangement of the cover body 720 belongs to the prior art in this field and will not be described in detail here.

[0154] like Figure 7 and Fig. 9 As shown, a shock-absorbing rubber 740 is provided on the outer periphery of the stator 820 facing the cover body 720 , and the shock-absorbing rubber 740 is used to absorb and buffer the vibration generated by the stator 820 when the driving motor 800 is working.

[0155] like Fig.12 As shown, the middle portion of the cover body 720 has a fixing portion 721 , and the fixing portion 721 is communicated with the interior of the motor housing 700 ; the buffer member 730 is disposed on the fixing portion 721 .

[0156] In some embodiments, the fixing portion 721 is a through opening disposed in the middle portion of the cover body 720 .

[0157] In other embodiments, the opening is arranged in a circular shape.

[0158] like Fig.13 As shown, the buffer member 730 is provided with a first limiting portion 731 , and the first limiting portion 731 cooperates with a side of the cover body 720 facing the through cavity.

[0159] The buffer member 730 is provided with a second limiting portion 732 , which is arranged opposite to the first limiting portion 731 along the axial direction of the buffer member 730 , and the second limiting portion 732 cooperates with a side of the cover body 720 away from the through cavity.

[0160] The second limiting portion 732 and the first limiting portion 731 define a matching portion 733 along the axial direction of the buffer 730 . The matching portion 733 is disposed on the fixing portion 721 .

[0161] like Fig.11 As shown, when the fixing portion 721 is a through opening provided in the cover body 720, the first limiting portion 731 contacts the side of the cover body 720 facing the through cavity, the matching portion 733 is provided in the fixing portion 721, and the second limiting portion 732 contacts the side of the cover body 720 away from the through cavity, so that the buffer member 730 is installed on the cover body 720.

[0162] It should be noted that although the first limiting portion 731, the second limiting portion 732 and the fixing portion 721 interfere with each other so that the matching portion 733 cannot be arranged in the fixing portion 721, since the buffer 730 is made of a softer material such as rubber or silicone, the matching portion 733 can be arranged in the fixing portion 721 by deforming the buffer 730, thereby installing the buffer 730 on the cover body 720.

[0163] like Figure 4 As shown, the wall-mounted air conditioner indoor unit includes a motor shield 500, which is arranged on the periphery of the motor housing 700, and the motor shield 500 is connected to the motor housing 700 and the base 120. The motor shield 500 and the base 120 jointly clamp the motor housing 700, thereby increasing the firmness of the connection between the motor housing 700 and the base 120.

[0164] The motor shield 500 is provided with ears 510 , and the ears 510 are connected to the base 120 via fasteners such as bolts or screws, so that the motor shield 500 is installed on the base 120 .

[0165] In some embodiments, the connecting portion 712 is arranged corresponding to the ear portion 510 so that the same fastener can simultaneously connect the motor shield 500, the motor housing 700 and the base 120, thereby increasing the assembly efficiency of the motor shield 500, the motor housing 700 and the base 120, and saving the number of fasteners used.

[0166] The above-mentioned wall-mounted air-conditioning indoor unit arranges first bearings 831 at both ends of the axial direction of the connecting shaft 830, so that the connecting shaft 830 is connected to the connecting shell 810 and the stator 820 correspondingly through the two first bearings 831, so that the connecting shaft 830 supports the relative rotation between the connecting shell 810 and the stator 820, thereby preventing the axis of the outer rotor 840 from deviating downward from the axis of the stator 820 under the action of the gravity of the heat exchange fan 200, thereby ensuring that the connecting shell 810 and the stator 820 are arranged coaxially.

[0167] The above-mentioned wall-mounted air-conditioning indoor unit sets a support shaft 210 at one end of the heat exchange fan 200 away from the driving motor 800, and sets a bearing seat 600 on the base 120, so that the support shaft 210 is interconnected with the bearing seat 600 through the second bearing, so that the base 120 supports the heat exchange fan 200, thereby increasing the reliability and stability of the operation of the heat exchange fan 200; and the bearing seat 600 is set corresponding to the end of the heat exchange fan 200 away from the driving motor 800. When the heat exchange fan 200 moves along the axial direction of the heat exchange fan 200 toward the direction away from the driving motor 800, the heat exchange fan 200 and the bearing seat 600 contact each other, so that the bearing seat 600 can buffer the heat exchange fan 200 and avoid damage to the heat exchange fan 200 due to hard collision with the casing 100.

[0168] The above-mentioned wall-mounted air-conditioning indoor unit sets a buffer member 730 on the inner wall of the motor housing 700 toward the heat exchange fan 200. When the heat exchange fan 200 moves toward the stator 820, the heat exchange fan 200 drives the connecting shaft 830 to move synchronously, and the connecting shaft 830 and the buffer member 730 contact each other, so that the buffer member 730 buffers the connecting shaft 830, thereby preventing the connecting shaft 830 from colliding hard with the inner wall of the motor housing 700 and damaging the heat exchange fan 200 and / or the outer rotor 840.

[0169] The above-mentioned wall-mounted air-conditioning indoor unit can not only ensure that the heat exchange fan 200 and the driving motor 800 are arranged coaxially, but also protect the heat exchange fan 200 during the production or transportation of the wall-mounted air-conditioning indoor unit to prevent the heat exchange fan 200 and the driving motor 800 from colliding with each other and being damaged.

[0170] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0171] For ease 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 intended 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 casing, comprising at least a casing air inlet and a casing air outlet, wherein the casing air inlet is opened at the top of the casing, and the casing air outlet is opened at the front bottom of the casing; the casing air inlet and the casing air outlet extend along the length direction of the casing respectively; A heat exchanger is disposed inside the casing and close to the air inlet of the casing; The heat exchanger is mounted on the base of the casing; A heat exchange fan is arranged inside the casing, and the heat exchange fan is located on the leeward side of the heat exchanger; the axial direction of the heat exchange fan is arranged along the length direction of the casing; A driving motor is arranged inside the housing; the driving motor and the heat exchange fan are arranged along the axial direction of the heat exchange fan; The drive motor further comprises: a stator mounted on the housing; An outer rotor having an insertion portion for at least a portion of the stator to be inserted into; the outer rotor can rotate relative to the stator to drive the heat exchange fan to rotate; A connecting shell connected to one end of the heat exchange fan facing the drive motor; a receiving portion is defined in the connecting shell, and the outer rotor is arranged in the receiving portion; the receiving portion is communicated with the insertion portion; A first gap is formed between a side of the stator facing the heat exchange fan and a side of the connecting shell facing away from the heat exchange fan along the axial direction of the heat exchange fan; A connecting shaft is arranged along the axial direction of the heat exchange fan; one end of the connecting shaft in the length direction is connected to the connecting shell, and the other end of the connecting shaft in the length direction is connected to a first bearing; A first mounting portion, through which the connecting shaft passes; the first mounting portion is arranged to penetrate the stator along the axial direction of the heat exchange fan; a motor housing mounted on the housing, wherein at least a portion of the stator is disposed in the motor housing; A buffer is arranged on the inner wall of the motor housing facing the heat exchange fan, and the buffer is arranged corresponding to the end of the connecting shaft away from the heat exchange fan, so that when the heat exchange fan drives the outer rotor to move toward the stator through the connecting shell, the connecting shaft and the buffer are in contact with each other.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The projection of the connecting shaft along the axial direction of the heat exchange fan is located within the projection of the buffer member on a side facing the connecting shaft along the axial direction of the heat exchange fan.

3. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: A second gap is provided along the axial direction of the heat exchange fan between one end of the connecting shaft away from the heat exchange fan and the side of the buffer member facing the connecting shaft; the axial dimension of the second gap along the heat exchange fan is L2, and the axial dimension of the first gap along the heat exchange fan is L1, and L1 and L2 satisfy the relationship: L1>L2.

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that: The inner wall of the motor housing is provided with a constraint portion, which protrudes from the inner wall of the motor housing and is used to constrain the stator; one end of the connecting shell away from the heat exchange fan extends into the motor housing, and the end of the connecting shell extending into the interior of the motor housing and the side of the connecting shell facing the constraint portion have a third gap along the axial direction of the heat exchange fan; the axial dimension of the third gap along the heat exchange fan is L3, and L3 and L2 satisfy the relationship: L3>L2.

5. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The motor housing includes a shell and a cover; a through cavity is defined inside the shell and arranged along the axial direction of the heat exchange fan; at least part of the stator is arranged in the through cavity; the cover is arranged at an opening of the shell away from the heat exchange fan in an openable and closable manner; the buffer is arranged on a side of the cover facing the through cavity.

6. The wall-mounted air conditioner indoor unit according to claim 5, characterized in that: The middle part of the cover body has a fixing portion, and the fixing portion is communicated with the interior of the motor housing; the buffer is arranged on the fixing portion.

7. The wall-mounted air conditioner indoor unit according to claim 1 or 5, characterized in that: The outer diameter of the connecting shaft away from the heat exchange fan is V, and the distance from any point on the outer periphery of the buffer member facing the connecting shaft to the axis of the connecting shaft is T, and T and V satisfy the relationship: T>V.

8. A wall mounted air conditioner indoor unit, characterized in that: include: A casing, comprising at least a casing air inlet and a casing air outlet, wherein the casing air inlet is opened at the top of the casing, and the casing air outlet is opened at the front bottom of the casing; the casing air inlet and the casing air outlet extend along the length direction of the casing respectively; A heat exchanger is disposed inside the casing and close to the air inlet of the casing; A heat exchange fan is arranged inside the casing, and the heat exchange fan is located on the leeward side of the heat exchanger; the axial direction of the heat exchange fan is arranged along the length direction of the casing; A driving motor is disposed inside the housing and is used to drive the heat exchange fan to operate; the driving motor and the heat exchange fan are arranged along the axial direction of the heat exchange fan; The drive motor further comprises: a stator mounted on the housing; An outer rotor having an insertion portion for at least a portion of the stator to be inserted into; the outer rotor can rotate relative to the stator to drive the heat exchange fan to rotate; A connecting shell connected to one end of the heat exchange fan facing the drive motor; a receiving portion is defined in the connecting shell, and the outer rotor is arranged in the receiving portion; the receiving portion is communicated with the insertion portion; A connecting shaft is arranged along the axial direction of the heat exchange fan; first bearings are respectively arranged at both ends of the connecting shaft in the length direction; A first mounting portion, which is provided on the stator and is used for the connecting shaft to extend into one end of the stator; a bearing sleeve for connecting the first bearing is provided in the first mounting portion; A second mounting portion is provided on the connecting shell and is used for the connecting shaft to extend into one end of the heat exchange fan; a bearing sleeve for connecting to the first bearing is provided in the second mounting portion.

9. The wall-mounted air conditioner indoor unit according to claim 1 or 8, characterized in that: The heat exchange fan is integrally formed with the outer rotor; and one end of the connecting shaft away from the stator is connected to the heat exchange fan.

10. The wall-mounted air conditioner indoor unit according to claim 1 or 8, characterized in that: A support shaft is provided at one end of the heat exchange fan away from the outer rotor, and the support shaft is connected to a second bearing; the housing is provided with a bearing seat for mounting the second bearing, and the bearing seat is arranged corresponding to the end of the heat exchange fan away from the outer rotor.

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