A hanging type air conditioner indoor unit

Abstract

The present application discloses a wall-mounted air conditioner indoor unit, which relates to the technical field of air conditioning; wherein the wall-mounted air conditioner indoor unit comprises a casing, a heat exchanger, a heat exchange fan, a driving motor, a motor casing and an avoidance portion; the driving motor is an outer rotor motor, the driving motor comprises an outer rotor and a stator, the outer rotor is connected to one end of the heat exchange fan facing the driving motor; an accommodation portion is provided at one end of the outer rotor away from the heat exchange fan; at least part of the stator is arranged in the accommodation portion; the motor casing comprises a shell and a cover, the shell is mounted on the base of the casing; at least part of the stator is arranged inside the casing; an outlet portion for the stator to escape from the inside of the casing is provided at one end of the casing away from the heat exchange fan; the cover is arranged at the outlet portion in an openable and closable manner; the avoidance portion is arranged at the base, the avoidance portion is located at one end of the base where the motor casing is mounted, and the avoidance portion is arranged corresponding to the inside of the casing; after the cover is opened, the stator can escape from the casing through the outlet portion through the avoidance portion. The wall-mounted air conditioner indoor unit provided by the present application can realize the installation and removal of the stator without disassembling the casing and the heat exchanger.

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] Motor failure is a common type of air conditioner failure. The motor drives the fan to rotate, sucks in indoor air and passes it through the heat exchanger for cooling or heating, 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 indoor unit of the wall-mounted air conditioner, and is one of the core components of the indoor unit of the wall-mounted air conditioner. An efficient and stable motor can ensure that the indoor unit of the wall-mounted air conditioner maintains stable performance during long-term operation and reduces energy consumption.

[0003] In some wall-mounted air-conditioning indoor units, an outer rotor motor is used to drive the fan. The stator is installed on the base as the motor body. The outer rotor and the fan are connected to each other. At least part of the stator is arranged inside the outer rotor so that the outer rotor and the stator can rotate relative to each other. Stator failure is a common type of motor failure.

[0004] At present, in the indoor unit of the wall-mounted air conditioner, the motor body is usually installed in the motor housing, and the motor housing is connected to the base to fix the motor body; the motor housing is also connected to the motor shield, which is connected to the evaporator and the base to increase the firmness of the motor body installation. Although this method of fixing the motor body increases the firmness of the motor body installation, it also increases the difficulty of disassembling the motor body. When the motor body fails, the evaporator, motor shield, etc. need to be disassembled to disassemble the motor body, which makes it difficult to disassemble the motor body and is not conducive to the replacement and maintenance of the motor body. Utility Model Content

[0005] In view of the deficiencies existing in the related art, the present application provides a wall-mounted air-conditioning indoor unit to simplify the disassembly method of the stator and facilitate the replacement and maintenance of the stator.

[0006] The present application provides a wall-mounted air conditioner indoor unit, comprising:

[0007] 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;

[0008] A heat exchanger is arranged inside the casing and close to the air inlet of the casing;

[0009] 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;

[0010] 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;

[0011] The drive motor further comprises:

[0012] The outer rotor is connected to the end of the heat exchange fan facing the drive motor; the end of the outer rotor away from the heat exchange fan is provided with a receiving portion;

[0013] A stator, at least a portion of which is disposed in the receiving portion;

[0014] The motor housing is used to install the stator; the motor housing further includes:

[0015] A shell is mounted on the base of the casing; at least part of the stator is arranged inside the shell; an end of the shell away from the heat exchange fan is provided with a pass-through portion for the stator to escape from the shell;

[0016] A cover body, which is disposed at the outlet portion in an openable and closable manner;

[0017] An escape portion is provided on the base, the escape portion is located at an end of the stator away from the heat exchange fan, and the escape portion is provided corresponding to the interior of the shell;

[0018] After the cover is opened, the stator can be separated from the shell through the penetration portion and the avoidance portion.

[0019] The technical solution is to provide a cover body connected to the shell in an openable and closable manner so that the stator can be removed from the shell by opening the cover body; an avoidance portion is provided on the base, and a pass-through portion is provided at one end of the shell facing the avoidance portion so that the stator can be separated from the shell through the pass-through portion through the avoidance portion after the cover body is opened, thereby realizing the disassembly of the stator.

[0020] The present application also provides a wall-mounted air conditioner indoor unit, comprising:

[0021] 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;

[0022] 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;

[0023] 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;

[0024] A driving motor is arranged inside the casing and is used to drive the heat exchange fan to operate;

[0025] An electrical box is arranged inside the casing, and the electrical box, the driving motor and the heat exchange fan are arranged along the axial direction of the heat exchange fan;

[0026] The drive motor further comprises:

[0027] The rotor is connected to one end of the heat exchange fan facing the drive motor; the end of the rotor away from the heat exchange fan is provided with a receiving portion;

[0028] A stator, at least a portion of which is disposed in the receiving portion;

[0029] The motor housing is used to install the stator; the motor housing further includes:

[0030] The shell has a through cavity defined inside, and the through cavity is arranged along the axial direction of the heat exchange fan; at least part of the stator is arranged in the through cavity;

[0031] A cover body, which is arranged at an opening of the housing on a side away from the heat exchange fan in an openable and closable manner;

[0032] An escape portion is provided on the base, the escape portion is located between the electrical box and the housing along the axial direction of the heat exchange fan, and the escape portion is provided corresponding to the through cavity;

[0033] After the electric box is disassembled, the cover body is opened, and the stator can be separated from the through cavity through the avoidance portion and arranged in the through cavity.

[0034] The technical solution designs the motor housing as a split structure including a housing and a cover body to facilitate the removal of the stator from the motor housing; an avoidance portion is provided on the base, and a pass-through portion is provided at one end of the housing facing the avoidance portion, so that the stator can be separated from the housing through the pass-through portion through the avoidance portion after the electrical box is removed and the cover body is opened, thereby realizing the removal of the stator.

[0035] In some of the embodiments, the stator moves along the axial direction of the heat exchange fan in a direction away from the heat exchange fan so that the stator is separated from the shell; the stator moves along the axial direction of the heat exchange fan in a direction close to the heat exchange fan so that the stator is arranged inside the shell.

[0036] In some of the embodiments, a projection curve of the avoidance portion along the axial direction of the heat exchange fan is located outside a projection curve of the cover body along the axial direction of the heat exchange fan.

[0037] In some embodiments, the dimension of the stator along the axial direction of the heat exchange fan is L1, and the distance from the side of the stator away from the heat exchange fan to the side of the electrical box facing the cover along the axial direction of the heat exchange fan is L2, and L1 and L2 satisfy the relationship: L2≥1 / 2L1, L2≤L1.

[0038] In some of the embodiments, the outer diameter of the stator is smaller than or equal to the outer diameter of an opening of the housing toward the cover.

[0039] In some embodiments, a limiting portion is provided on the inner wall of the shell, and a matching portion is provided on the outer periphery of the stator, and a side of the matching portion facing the heat exchange fan matches with a side of the limiting portion facing the cover body.

[0040] In some embodiments, a protrusion is provided on the periphery of the cover, an insertion portion is provided on one end of the shell away from the heat exchange fan, and the protrusion is arranged in the insertion portion so that the cover and the shell are connected to each other.

[0041] In some of the embodiments, an elastic portion is provided at one end of the shell away from the heat exchange fan, and the elastic portion can be deformed relative to the shell along the radial direction of the shell; and the insertion portion is provided on the elastic portion.

[0042] The technical solution arranges part of the insertion part on the elastic part, and utilizes the elastic part to deform in a direction away from the inside of the shell, so that the protrusion can be arranged in the insertion part, thereby realizing a detachable connection between the cover body and the shell.

[0043] In some embodiments, a motor shield is connected to the outer periphery of the shell, and the motor shield is connected to the base; the projection curve of the motor shield along the axial direction of the heat exchange fan is located outside the projection curve of the cover along the axial direction of the heat exchange fan.

[0044] In the above embodiment, a wall-mounted air-conditioning indoor unit designs a motor housing to include a shell and a cover body, so that the cover body is connected to the shell in an openable and closable manner to facilitate the taking and placing of the stator inside the shell; and an avoidance portion is provided in the shell, so that the avoidance portion is provided corresponding to the inside of the shell, so that the stator can be taken out from the inside of the shell or placed inside the shell through the avoidance portion after the cover body is opened. The installation and disassembly method of the stator is simple and easy to operate, and there is no need to disassemble the shell and the heat exchanger. 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 2 This is a schematic diagram of the internal structure of an embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0047] Figure 3 is a cross-sectional view of the internal structure of an embodiment of a wall-mounted air conditioner indoor unit of the present application;

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

[0050] Figure 6 This is a structural schematic diagram of another embodiment of the wall-mounted air conditioner indoor unit of the present application when a heat exchange fan, a drive motor, and a motor housing are connected to each other;

[0051] Figure 7This is a structural schematic 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;

[0052] Figure 8 It is a cross-sectional view of a driving motor assembled on a motor housing in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0053] Fig. 9 This is a schematic diagram of the structure of the outer rotor in one embodiment of the 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 of an embodiment of the wall-mounted air conditioner indoor unit of the present application;

[0055] Fig.11 This is a schematic diagram of the structure of a housing in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0056] Fig.12 This is a schematic structural diagram of another angle of the housing of an embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0057] Fig.13 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;

[0058] Fig.14 It is a cross-sectional view of a driving motor installed on a base in one embodiment of a wall-mounted air conditioner indoor unit of the present application.

[0059] In the figure,

[0060] 100, housing; 200, heat exchanger; 300, electrical box; 400, heat exchange fan; 500, motor shield; 600, motor housing; 700, drive motor;

[0061] 101, air inlet of the casing; 102, air outlet of the casing;

[0062] 110, base; 111, first mounting portion; 112, second mounting portion; 113, third mounting portion; 114, avoidance portion; 115, fourth mounting portion; 116, ribs;

[0063] 210, end plate;

[0064] 610, housing; 620, cover; 630, shock-absorbing rubber;

[0065] 611, connecting portion; 612, limiting portion; 613, inserting portion; 614, elastic portion; 615, avoidance opening;

[0066] 621, raised part;

[0067] 710, outer rotor; 720, stator; 730, connecting shaft;

[0068] 711. Accommodation unit. DETAILED DESCRIPTION

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] like Figure 2 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.

[0078] The housing 100 includes an outer cover, the interior of which defines an outer cover cavity with an opening toward the rear side of the housing 100 , and a housing air inlet 101 is provided at the top of the outer cover.

[0079] like Figure 2-Figure 5 As shown, the housing 100 includes a base 110, which is disposed at the opening of the outer cover cavity, and the base 110 and the outer cover are detachably connected to each other.

[0080] A base opening is provided at the front bottom of the base 110 , and a cover opening is provided at the front bottom of the cover. The base opening and the cover opening are correspondingly arranged to jointly define a housing air outlet 102 .

[0081] like Figure 2 , Figure 3 and Figure 5 As shown, the wall-mounted air conditioner indoor unit includes a heat exchanger 200, which is installed on the base 110 and located inside the casing 100. The air in the casing 100 is heated by the heat exchanger 200 after contacting the heat exchanger 200 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.

[0082] The heat exchanger 200 is disposed close to the air inlet 101 of the casing, so that the heat exchanger 200 can timely exchange heat for the air entering the casing 100 .

[0083] like Figure 5 As shown, the length direction of the heat exchanger 200 is arranged along the length direction of the casing 100, and end plates 210 are respectively provided at both ends of the length direction of the heat exchanger 200, and the end plates 210 are connected to the base 110, so as to realize the installation of the heat exchanger 200.

[0084] It should be noted that the air-conditioning wind can be cold air, hot air, or even normal temperature air.

[0085] like Figure 3 As shown, the wall-mounted air conditioner indoor unit includes a heat exchange fan 400, which is installed on the base 110 and located inside the casing 100. The heat exchange fan 400 is located on the leeward side of the heat exchanger 200, and the axial direction of the heat exchange fan 400 extends along the length direction of the casing 100.

[0086] By operating the heat exchange fan 400, indoor air is introduced into the interior of the casing 100 through the casing air inlet 101, and after heat exchange in the heat exchanger 200 to form conditioned air, the conditioned air flows into the room through the casing air outlet 102.

[0087] It should be noted that, in a wall-mounted air conditioner indoor unit, the heat exchange fan 400 is usually a cross-flow fan.

[0088] In some embodiments, a support shaft is connected to one end of the heat exchange fan 400 in the length direction, and the support shaft is connected to the base 110 through a bearing so that the support shaft supports the operation of the heat exchange fan 400 and increases the stability of the heat exchange fan 400 during operation.

[0089] like Figure 4 As shown, the base 110 is provided with a first mounting portion 111 , and a bearing seat is provided inside the first mounting portion 111 . The bearing seat is used to install a bearing so that the support shaft can rotate relative to the base 110 .

[0090] The base 110 is provided with a second mounting portion 112 , and the heat exchange fan 400 is disposed on the second mounting portion 112 . The first mounting portion 111 and the second mounting portion 112 are arranged along the length direction of the housing 100 .

[0091] like Figure 7 As shown, the wall-mounted air conditioner indoor unit includes a drive motor 700, which is installed on the base 110 and located inside the casing 100, and is used to drive the heat exchange fan 400 to operate; the drive motor 700 is located at one end of the heat exchange fan 400 away from the support shaft, and the drive motor 700 and the heat exchange fan 400 are arranged along the axial direction of the heat exchange fan 400.

[0092] like Figure 4 As shown, the base 110 is provided with a third mounting portion 113 , the driving motor 700 is provided at the third mounting portion 113 , and the first mounting portion 111 , the second mounting portion 112 and the third mounting portion 113 are arranged along the length direction of the housing 100 .

[0093] In some embodiments, the third mounting portion 113 is a groove disposed on the base 110 , and the driving motor 700 is disposed in the groove to position the driving motor 700 and to increase the firmness of the installation of the driving motor 700 .

[0094] like Figure 2As shown, the wall-mounted air conditioner indoor unit includes an electrical box 300, which is installed on the base 110 and located inside the casing 100. An electric control board is installed in the electrical box 300. The electric control board is connected to the drive motor 700 through a line to control the operation of the drive motor 700. This is common knowledge in the field and will not be repeated here.

[0095] like Figure 4 As shown, the base 110 is provided with a fourth mounting portion 115, the electrical box 300 is provided on the fourth mounting portion 115, and the first mounting portion 111, the second mounting portion 112, the third mounting portion 113 and the fourth mounting portion 115 are arranged along the length direction of the casing 100, so that the bearing seat, the heat exchange fan 400, the drive motor 700 and the electrical box 300 are arranged along the length direction of the casing 100.

[0096] In the present application, the driving motor 700 is an outer rotor motor.

[0097] like Figure 7 As shown, the driving motor 700 includes an outer rotor 710, which is the rotatable part of the driving motor 700. The outer rotor 710 is arranged at one end of the heat exchange fan 400 facing the driving motor 700, and the outer rotor 710 is used to drive the heat exchange fan 400 to rotate synchronously.

[0098] In a narrow sense, the outer rotor usually refers to a magnetic ring, but the magnetic ring is usually installed on a mounting shell and other connecting parts and connected to the heat exchange fan 400 through connecting parts, and these connecting parts also rotate synchronously when the magnetic ring rotates. Therefore, in a broad sense, the outer rotor includes a magnetic ring and components for fixing the magnetic ring or for connecting the magnetic ring to the heat exchange fan. Among them, in the present application, the outer rotor 710 is an outer rotor in a broad sense, that is, the outer rotor 710 includes not only the magnetic ring, but also components outside the magnetic ring.

[0099] The outer rotor 710 rotates synchronously with the heat exchange fan 400 ; an accommodation portion 711 is provided at one end of the outer rotor 710 away from the heat exchange fan 400 .

[0100] The driving motor 700 includes a stator 720 , at least a portion of the stator 720 is disposed in the accommodation portion 711 , and the outer rotor 710 can rotate relative to the stator 720 .

[0101] There is a gap between the outer diameter of the stator 720 disposed in the accommodating portion 711 and the inner diameter of the accommodating portion 711 along the radial direction of the stator 720 to prevent the outer rotor 710 from interfering with the stator 720 when the outer rotor 710 rotates relative to the stator 720 .

[0102] It should be noted that the specific composition of the outer rotor 810 and the specific composition of the stator 820, as well as the fact that the outer rotor 810 can rotate relative to the stator 820, belong to the prior art in this field and will not be described in detail here.

[0103] like Figure 8 As shown, the driving motor 700 includes a connecting shaft 730, and the axial direction of the connecting shaft 730 is arranged along the axial direction of the heat exchange fan 400; one end of the connecting shaft 730 is connected to the outer rotor 710, and the other end of the connecting shaft 730 is connected to the stator 720, so that the connecting shaft 730 constrains the stator 720 and the outer rotor 710, thereby increasing the reliability of the relative rotation between the two.

[0104] It should be noted that, in some embodiments, the connecting shaft 730 rotates synchronously with the outer rotor 710, and a bearing is connected to one end of the connecting shaft 730 away from the outer rotor 710. The connecting shaft 730 is connected to the stator 720 through the bearing so that the connecting shaft 730 and the stator 720 can rotate relative to each other.

[0105] like Figure 5 and Figure 6 As shown, in order to facilitate the installation and fixation of the stator 720, the stator 720 is usually arranged in the motor housing 600, and the motor housing 600 is installed on the base 110 by fasteners such as bolts or screws to ensure the firmness of the installation of the stator 720.

[0106] It should be noted that the motor housing 600 is installed on the third installation portion 113 to position and constrain the motor housing 600 and limit the installation position of the motor housing 600 .

[0107] like Figure 6 As shown, a connecting portion 611 is provided on the outer periphery of the motor housing 600 , and the connecting portion 611 is connected to the base 110 via fasteners such as bolts or screws, so that the motor housing 600 is installed on the base 110 .

[0108] In some embodiments, two connection parts 611 are provided, and the two connection parts 611 are provided along the thickness direction of the housing 100 corresponding to the third mounting part 113 to increase the firmness of the connection between the motor housing 600 and the base 110 .

[0109] In some embodiments, the third mounting portion 113 is a groove disposed on the base 110 , and at least a portion of the motor housing 600 is disposed in the groove to position the motor housing 600 , and to increase the firmness and stability of the installation of the motor housing 600 .

[0110] like Figure 5 As shown, the wall-mounted air conditioner indoor unit includes a motor shield 500, which is arranged corresponding to the third mounting portion 113. The motor shield 500 is located above the third mounting portion 113 so that the motor shield 500 and the base 110 can jointly clamp the motor housing 600, thereby increasing the firmness of the connection between the motor housing 600 and the base 110.

[0111] It should be noted that the motor shield 500 is disposed on the outer periphery of the motor housing 600 , and the motor shield 500 is connected to the motor housing 600 and the base 110 to increase the firmness of the connection between the motor housing 600 and the base 110 .

[0112] The side of the motor shield 500 facing the heat exchange fan 400 is connected to the end plate 210 to further increase the firmness of the installation of the motor housing 600 .

[0113] The motor shield 500 is provided with ears, which are connected to the base 110 via fasteners such as bolts or screws, so that the motor shield 500 is installed on the base 110 .

[0114] In some embodiments, the connecting portion 611 is arranged corresponding to the ear portion so that the same fastener can simultaneously connect the motor shield 500, the motor housing 600 and the base 110, thereby increasing the assembly efficiency of the motor shield 500, the motor housing 600 and the base 110, and saving the number of fasteners used.

[0115] In the indoor unit of a wall-mounted air conditioner, stator 720 failure is a common type of failure of the drive motor 700. In order to facilitate the maintenance and replacement of the stator 720, in the present application, the motor housing 600 is designed as a split structure to facilitate the removal of the stator 720 from the motor housing 600 without having to remove the motor housing 600 from the base 110 before removing the stator 720.

[0116] Specifically, Figure 8 and Fig.10 As shown, the motor housing 600 includes a shell 610, and a through cavity is defined inside the shell 610. The through cavity is arranged along the length direction of the housing 100, and at least part of the stator 720 is arranged in the through cavity; the shell 610 is provided with a through portion, and the stator 720 leaves the through cavity through the through portion or is arranged in the through cavity.

[0117] It should be noted that the through portion is an opening at one end of the through cavity away from the heat exchange fan 400 .

[0118] The outer diameter of the stator 720 is smaller than or equal to the outer diameter of the opening of the through portion, so that the stator 720 can enter and exit the through cavity through the through portion.

[0119] The inner diameter of at least a portion of the through cavity is greater than or equal to the outer diameter of the stator 720, so that the stator 720 is disposed in the through cavity.

[0120] like Figure 8 As shown, the side of the outer rotor 710 facing away from the heat exchange fan 400 extends into the through cavity from the through cavity toward the opening at one end of the heat exchange fan 400, so that part of the stator 720 can be arranged in the accommodating portion 711 to cooperate with the outer rotor 710.

[0121] It should be noted that the connection portion 611 is disposed on the outer periphery of the housing 610 so that the housing 610 can be installed on the base 110 .

[0122] like Figure 6 , Figure 8 and Fig.10 As shown, the motor housing 600 includes a cover body 620, 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 400, thereby firmly setting the stator 720 in the through cavity.

[0123] When the stator 720 needs to be taken out from the housing 610 or installed in the housing 610 , the cover 620 is opened; when the stator 720 does not need to be taken out, the cover 620 is closed.

[0124] Since the cover body 620 and the shell body 610 are arranged along the axial direction of the heat exchange fan 400, the cover body 620 is close to the end of the shell body 610 away from the heat exchange fan 400. Therefore, the stator 720 is disassembled along the axial direction of the heat exchange fan 400 in the direction away from the heat exchange fan 400; the stator 720 is installed along the axial direction of the heat exchange fan 400 in the direction close to the heat exchange fan 400.

[0125] Since the electrical box 300 is installed on the base 110 and is disposed close to the drive motor 700, the electrical box 300 when installed on the base 110 will hinder the removal and installation of the cover 620 and the shell 610. Therefore, when replacing the stator 720, the electrical box 300 needs to be removed from the base 110 first.

[0126] like Figure 4 and Figure 5 As shown, the base 110 is provided with a rib 116 , which is located on a side of the fourth mounting portion 115 close to the third mounting portion 113 , and its purpose is to constrain the electrical box 300 to prevent the electrical box 300 from shaking.

[0127] If the dimension of the rib 116 along the thickness direction of the housing 100 is too large, it will interfere with the disassembly of the cover 620 and the stator 720. Therefore, in the present application, the projection curve of the rib 116 along the axial direction of the heat exchange fan 400 is located outside the projection curve of the cover 620 along the axial direction of the heat exchange fan 400 to prevent the rib 116 and the cover 620 from interfering with each other, thereby preventing the cover 620 and the stator 720 from being separated from the base 110.

[0128] In order to prevent the circuit from being disconnected from the stator 720 or the electrical components due to insufficient circuit length when disassembling the stator 720, or the circuit needs to be disassembled before the stator 720 can be disassembled, in this application, the connection circuit between the stator 720 and the electrical components in the electrical box 300 is relatively long. When the electrical box 300 is installed on the base 110 and the stator 720 is arranged inside the housing 610, the required connection circuit between the stator 720 and the electrical components does not need to be that long, so in this application, a certain distance needs to be left between the electrical box 300 and the drive motor 700 to accommodate the circuit.

[0129] Specifically, Figure 4 As shown, the base 110 is provided with an avoidance portion 114, and the avoidance portion 114 is located between the third mounting portion 113 and the fourth mounting portion 115 along the length direction of the casing 100, that is, the avoidance portion 114 is located between the electrical box 300 and the shell 610 along the length direction of the casing 100, and the avoidance portion 114, the electrical box 300, and the cover body 620 jointly define an avoidance channel so that the circuit is arranged in the avoidance channel.

[0130] Since the rib 116 is arranged on the surface of the protruding base 110, the rib 116 may affect the replacement of the stator 720. By providing an avoidance portion 114 between the third mounting portion 113 and the fourth mounting portion 115, the interference of the rib 116 on the stator 720 and the cover body 620 when the stator 720 is replaced can also be reduced.

[0131] The avoidance portion 114 is disposed corresponding to the interior 610 of the shell body. When the cover body 620 is opened, the stator 720 can be removed from the interior of the shell body 610 through the avoidance portion 114 to separate the stator 720 from the shell body 610 .

[0132] The projection curve of the avoidance portion 114 along the axial direction of the heat exchange fan 400 is located outside the projection curve of the cover body 620 along the axial direction of the heat exchange fan 400 to prevent the base 110 and the cover body 620 from interfering with each other, resulting in the cover body 620 being unable to detach from the base 110 through the avoidance portion 114.

[0133] The dimension of the stator 720 along the axial direction of the heat exchange fan 400 is L1, and the dimension of the avoidance portion 114 along the axial direction of the heat exchange fan 400 is L3. L1 and L3 satisfy the relationship: L3≥1 / 2L1, L3≤L1.

[0134] If L3<1 / 2L1, it is inconvenient to remove the stator 720 from the through cavity, and it is also inconvenient to place the stator 720 in the through cavity.

[0135] If L3>L1, the size of the base 110 along the length direction of the casing 100 is too large, which will increase the length of the wall-mounted air conditioner indoor unit and cause the occupied space of the wall-mounted air conditioner indoor unit to increase.

[0136] In some embodiments, L3≥2 / 3L1, L3≤3 / 4L1, which can facilitate the removal of the stator 720 from the through cavity or the placement of the stator 720 in the through cavity, and the increased size of the base 110 is small.

[0137] Although the stator 720 can be taken out from the through cavity when L3<2 / 3L1 and L3≥1 / 2L1, the stator 720 is relatively difficult to take out.

[0138] Although when L3>3 / 4L1 and L3≤L1, the stator 720 can be taken and placed more conveniently, the increased size of the base 110 is relatively large.

[0139] like Fig.14 As shown, the distance from the side of the stator 720 away from the heat exchange fan 400 to the side of the electrical box 300 facing the cover 620 along the axial direction of the heat exchange fan 400 is L2, and L2 and L1 satisfy the relationship: L2≥1 / 2L1, L2≤L1.

[0140] If L2<1 / 2L1, it is inconvenient to take the stator 720 out of the through cavity, and it is also inconvenient to place the stator 720 in the through cavity.

[0141] If L2>L1, the size of the base 110 along the length direction of the casing 100 is too large, which will increase the length of the wall-mounted air conditioner indoor unit and cause the occupied space of the wall-mounted air conditioner indoor unit to increase.

[0142] In some embodiments, L2≥2 / 3L1, L2≤3 / 4L1, which can facilitate the removal of the stator 720 from the through cavity or the placement of the stator 720 in the through cavity, and the increased size of the base 110 is small.

[0143] Although the stator 720 can be taken out from the through cavity when L2<2 / 3L1 and L2≥1 / 2L1, the stator 720 is relatively difficult to take out.

[0144] Although when L2>3 / 4L1 and L2≤L1, the stator 720 can be taken and placed more conveniently, the increased size of the base 110 is relatively large.

[0145] The steps for replacing the stator 720 are as follows: first, remove the electrical box 300 from the base 110, then open the cover 620, and separate the stator 720 from the base 110 through the through portion through the avoidance portion 114, thereby realizing the disassembly of the stator 720; then, place the replaced stator 720 through the avoidance portion 114 and place it in the through cavity, then close the cover 620, and finally install the electrical box 300 on the base 110, thereby realizing the installation of the new stator 720.

[0146] In the present application, the cover body 620 is detachably connected to the shell body 610 so that the cover body 620 is arranged at the passing portion in an openable and closable manner, wherein when the cover body 620 and the shell body 610 are connected to each other, the cover body 620 is closed; when the cover body 620 and the shell body 610 are separated from each other, the cover body 620 is opened.

[0147] It should be noted that after the cover 620 and the housing 610 are separated from each other, the cover 620 can leave the avoidance channel through the avoidance portion 114 to prevent the cover 620 and the stator 720 from interfering with each other when the stator 720 is disassembled.

[0148] like Fig.13 As shown, the cover body 620 is provided with a protrusion 621 , and the protrusion 621 is arranged to protrude from the outer periphery of the cover body 620 .

[0149] like Fig.11 and Fig.12 As shown, the shell 610 is provided with an insertion portion 613, which is arranged on the outer periphery of the shell 610, and is arranged close to the passing portion. The insertion portion 613 is arranged corresponding to the protrusion 621; the protrusion 621 is arranged in the insertion portion 613 to connect the cover body 620 and the shell 610 to each other.

[0150] There are multiple protrusions 621, which are arranged along the circumference of the cover body 620; there are also multiple insertion parts 613, which are arranged along the outer circumference of the shell 610. The multiple insertion parts 613 and the multiple protrusions 621 are arranged one by one to increase the firmness of the connection between the cover body 620 and the shell 610.

[0151] like Fig.11 and Fig.12 As shown, an elastic portion 614 is provided at one end of the shell 610 away from the heat exchange fan 400, and the elastic portion 614 can be deformed relative to the shell 610 along the radial direction of the shell 610; at least a part of the insertion portion 613 is provided on the elastic portion 614, so that the elastic portion 614 can be deformed in a direction away from the interior of the shell 610, so that the protrusion 621 can be provided in the insertion portion 613, thereby realizing a detachable connection between the cover body 620 and the shell 610.

[0152] In some embodiments, the elastic portion 614 is provided in plurality, and the plurality of elastic portions 614 are arranged along the circumference of the shell 610 . The plurality of elastic portions 614 are provided with a plurality of insertion portions 613 correspondingly, which can not only increase the firmness of the connection between the cover body 620 and the shell 610 , but also facilitate the connection between the cover body 620 and the shell 610 .

[0153] like Fig.11 and Fig.12As shown, a plurality of avoidance openings 615 are provided on the peripheral wall of the shell 610 away from the heat exchange fan 400, and the plurality of avoidance openings 615 are arranged along the circumference of the shell 610; the avoidance openings 615 extend along the axial direction of the heat exchange fan 400 at one end away from the heat exchange fan 400 and pass through the peripheral wall of the shell 610 to form an elastic portion 614.

[0154] It should be noted that, in this embodiment, the elastic portion 614 is also a part of the peripheral wall of the shell 610 .

[0155] It should also be noted that the portion of the shell 610 that is away from the heat exchange fan 400 and cannot be deformed relative to the shell 610 along the radial direction of the shell 610 is the fixed portion, and the fixed portion and the elastic portion 614 are arranged along the circumferential direction of the shell 610.

[0156] In some embodiments, the fixing portion is provided with an insertion portion 613. When installing the cover body 620, the protrusion 621 is first inserted into the insertion portion 613 provided on the fixing portion for pre-positioning, and then the remaining protrusion 621 is inserted into the insertion portion 613 provided on the elastic portion 614.

[0157] like Fig.10 As shown, a shock-absorbing rubber 630 is provided on the outer periphery of the stator 720 facing the cover body 620 , and the shock-absorbing rubber 630 is used to absorb and buffer the vibration generated by the stator 720 when the driving motor 700 is working.

[0158] like Fig.10 As shown, the shell 610 is provided with a limiting portion 612 , and the limiting portion 612 is provided on the inner wall of the shell 610 and protrudes from the inner wall of the shell 610 .

[0159] A mating portion is provided on the outer periphery of the stator 720, and the side of the mating portion facing the heat exchange fan 400 cooperates with the side of the limiting portion 612 facing the heat exchange fan 400 to prevent the stator 720 from continuing to move along the axial direction of the heat exchange fan 400 toward the direction approaching the heat exchange fan 400, thereby limiting the setting position of the stator 720 in the through cavity.

[0160] The shock-absorbing rubber 630 is connected to the limiting portion 612 , so that the limiting portion 612 can fix the shock-absorbing rubber 630 , prevent the shock-absorbing rubber 630 from moving relative to the stator 720 , and increase the firmness of the connection between the shock-absorbing rubber 630 and the stator 720 .

[0161] When the cover 620 and the housing 610 are connected to each other, the shock-absorbing rubber 630 and the cover 620 are pressed and matched with each other to prevent the stator 720 from shaking in the through cavity, thereby increasing the firmness of the connection between the stator 720 and the motor housing 600.

[0162] When installing the cover body 620, the elastic part 614 is deformed radially along the shell body 610 toward the direction away from the interior of the shell body 610 to increase the opening size of the through part, and then the protrusion 621 is set corresponding to the insertion part 613, and the protrusion 621 is inserted into the corresponding insertion part 613, and then the elastic part 614 is restored to the away state, thereby realizing the mutual connection between the cover body 620 and the shell body 610.

[0163] When removing the cover body 620, the elastic part 614 is deformed along the radial direction of the shell body 610 toward the direction away from the interior of the shell body 610 to increase the opening size of the through part, and then the protrusion 621 is detached from the corresponding insertion part 613 to separate the cover body 620 and the shell body 610 from each other, and then the elastic part 614 is restored to the away state.

[0164] It should be noted that the opening and closing configuration of the cover body 620 includes but is not limited to the above-mentioned manner.

[0165] In the above-mentioned wall-mounted air-conditioning indoor unit, the motor housing 600 is designed as a split structure including a shell 610 and a cover body 620, so that the cover body 620 can be opened and closed at the passing portion, and an avoidance portion 114 is provided on the base 110, so that the avoidance portion 114 is provided corresponding to the inside of the shell 610, so that the stator 720 can pass through the avoidance portion 114 and leave the inside of the shell 610 after opening the cover body 620; replacement and maintenance of the stator 720 only requires disassembly of the electrical box 300 and opening of the cover body 620, without disassembly of the motor shield 500, the heat exchanger 200 and the shell 610, and the stator 720 is convenient to replace and simple to operate; usually one staff member can replace the stator 720 without the assistance of other staff members, thereby reducing the maintenance and replacement costs.

[0166] 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.

[0167] 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 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 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: An outer rotor connected to one end of the heat exchange fan facing the drive motor; an end of the outer rotor away from the heat exchange fan is provided with a receiving portion; a stator, at least a portion of which is disposed in the accommodation portion; A motor housing, used for mounting the stator; the motor housing further comprises: A shell, which is mounted on the base of the housing; at least part of the stator is arranged inside the shell; an end of the shell away from the heat exchange fan is provided with a pass-through portion for the stator to escape from the shell; A cover body, which is disposed at the outlet portion in an openable and closable manner; An escape portion, which is arranged on the base, the escape portion is located at an end of the stator away from the heat exchange fan, and the escape portion is arranged corresponding to the interior of the shell; After the cover is opened, the stator can be separated from the shell through the penetration portion and the avoidance portion.

2. 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, which is arranged inside the casing and is used to drive the heat exchange fan to operate; An electrical box, which is arranged inside the housing, wherein the electrical box, the drive motor and the heat exchange fan are arranged along the axial direction of the heat exchange fan; The drive motor further comprises: A rotor connected to one end of the heat exchange fan facing the drive motor; an end of the rotor away from the heat exchange fan is provided with a receiving portion; a stator, at least a portion of which is disposed in the accommodation portion; A motor housing, used for mounting the stator; the motor housing further comprises: A shell, wherein a through cavity is defined in the interior thereof, and the through cavity is arranged along the axial direction of the heat exchange fan; at least a part of the stator is arranged in the through cavity; A cover body, which is disposed at an opening of the housing on a side away from the heat exchange fan in an openable and closable manner; An escape portion, which is provided on the base, the escape portion is located between the electrical box and the housing along the axial direction of the heat exchange fan, and the escape portion is provided corresponding to the through cavity; After the electrical box is disassembled, the cover is opened, and the stator can be separated from the through cavity through the avoidance portion or be arranged in the through cavity.

3. The wall-mounted air conditioner indoor unit according to claim 1 or 2, characterized in that: The stator moves along the axial direction of the heat exchange fan in a direction away from the heat exchange fan so that the stator is separated from the shell; the stator moves along the axial direction of the heat exchange fan in a direction close to the heat exchange fan so that the stator is arranged in the shell.

4. The wall-mounted air conditioner indoor unit according to claim 1 or 2, characterized in that: A projection curve of the avoidance portion along the axial direction of the heat exchange fan is located outside a projection curve of the cover body along the axial direction of the heat exchange fan.

5. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that: The axial dimension of the stator along the heat exchange fan is L1, and the distance from the side of the stator away from the heat exchange fan to the side of the electrical box facing the cover along the axial direction of the heat exchange fan is L2. L1 and L2 satisfy the relationship: L2≥1 / 2L1, L2≤L1.

6. The wall-mounted air conditioner indoor unit according to claim 1 or 2, characterized in that: The outer diameter of the stator is smaller than or equal to the outer diameter of the opening of one end of the shell toward the cover body.

7. The wall-mounted air conditioner indoor unit according to claim 1 or 2, characterized in that: A limiting portion is provided on the inner wall of the shell, and a matching portion is provided on the outer periphery of the stator. A side of the matching portion facing the heat exchange fan matches with a side of the limiting portion facing the cover body.

8. The wall-mounted air conditioner indoor unit according to claim 1 or 2, characterized in that: A convex portion is provided on the outer periphery of the cover body, an insert portion is provided at one end of the shell body away from the heat exchange fan, and the convex portion is arranged in the insert portion so that the cover body and the shell body are connected to each other.

9. The wall-mounted air conditioner indoor unit according to claim 8, characterized in that: An elastic portion is provided at one end of the shell away from the heat exchange fan, and the elastic portion can be deformed relative to the shell along the radial direction of the shell; and the insertion portion is provided on the elastic portion.

10. The wall-mounted air conditioner indoor unit according to claim 1 or 2, characterized in that: A motor shield is connected to the outer periphery of the shell, and the motor shield is connected to the base; a projection curve of the motor shield along the axial direction of the heat exchange fan is located outside the projection curve of the cover body along the axial direction of the heat exchange fan.

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