Hanging type air conditioner indoor unit

Abstract

The utility model discloses a hanging type air conditioner indoor unit, and relates to the technical field of air conditioners. The hanging type air conditioner indoor unit comprises a machine shell, a heat exchanger, a heat exchange fan, a driving motor and a motor shell. The driving motor is an outer rotor motor and comprises an outer rotor and a stator, and a containing part is arranged at the end, away from the heat exchange fan, of the outer rotor; at least part of the stator is arranged in the accommodating part; at least part of the stator is arranged in the motor shell; the shell is provided with a mounting part for mounting the motor shell; the first positioning part is arranged on the shell and is close to the mounting part; the second positioning part is arranged on the motor shell and corresponds to the first positioning part; the first connecting part is arranged on the shell and is close to the mounting part; the second connecting part is arranged on the motor shell and corresponds to the first connecting part; the fastener is connected to the second connecting part and penetrates through the second connecting part to be connected with the first connecting part. According to the hanging type air conditioner indoor unit, the installation accuracy of the driving motor is high, and the deviation between the axis of the driving motor and the axis of the heat exchange fan is small.

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, and part of the stator is arranged in the outer rotor so that the stator and the outer rotor cooperate with each other. There is usually a rotation gap between the stator and the outer rotor along the setting direction of the outer rotor rotation axis and the radial direction of the outer rotor to ensure the reliability of the relative rotation between the outer rotor and the stator.

[0004] In the prior art, the stator is usually installed on the motor casing, and the motor casing is then installed on the casing by fasteners such as bolts or screws. The motor casing is easily offset when installed on the casing, causing the axis of the stator to deviate from the axis of the outer rotor. The motor is prone to generate abnormal noise when working, and the fan is prone to jump when running, etc., affecting the performance of the indoor unit of the wall-mounted air conditioner.

[0005] In addition, the motor is prone to vibration when working, and the stator is installed in the casing through the motor casing. The vibration is easily transmitted to the casing, which not only affects the performance of the indoor unit of the wall-mounted air conditioner, but may also affect the user's normal life and reduce the user experience. 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 increases the accuracy of the motor housing's position in the housing by positioning the motor housing, thereby preventing the axis of the stator from deviating from the axis of the outer rotor.

[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] 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;

[0012] The drive motor further comprises:

[0013] The outer rotor is connected to the 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;

[0014] A stator, at least a portion of which is disposed in the receiving portion;

[0015] A motor housing, which is mounted on the casing, and at least a portion of the stator is disposed in the motor housing;

[0016] A first mounting portion is disposed on the housing; the motor housing is disposed on the first mounting portion;

[0017] A first positioning portion, which is disposed on the housing; the first positioning portion is disposed close to the first mounting portion;

[0018] A second positioning portion, which is arranged on the motor housing, and the second positioning portion is arranged corresponding to the first positioning portion;

[0019] A first connecting portion is disposed on the housing; the first connecting portion is disposed close to the first mounting portion;

[0020] A second connection portion, which is disposed on the motor housing; the second connection portion is disposed corresponding to the first connection portion;

[0021] A fastener passes through the second connecting portion and is connected to the first connecting portion to connect the motor housing and the machine housing.

[0022] The technical solution arranges a first positioning portion on the casing and a second positioning portion on the motor casing, and utilizes the second positioning portion to cooperate with the first positioning portion to position the installation position of the motor casing in the casing, thereby increasing the accuracy of the installation position of the motor casing in the casing and preventing the motor casing from tilting at the installation position of the casing and causing the axis of the stator to deviate from the axis of the outer rotor; arranges a first connecting portion on the casing and a second connecting portion on the motor casing, and utilizes the second connecting portion to connect the first connecting portion through fasteners to enable the motor casing to be installed in the casing.

[0023] In some embodiments, two first connection parts are provided, and the two first connection parts are correspondingly provided at the outer edges of the first mounting part on both sides opposite to each other; a straight line passing through the midpoint of the stator and perpendicular to the axis of the stator in the horizontal plane is defined as the first straight line; a line connecting the two first connection parts is defined as the second straight line, and the second straight line is provided to intersect with a projection curve of the first straight line in the horizontal plane.

[0024] In some embodiments, two first positioning portions are provided, and the two first positioning portions are correspondingly provided at the outer edges of the two opposite sides of the first mounting portion; the connecting line between the two first positioning portions is a third straight line, and the third straight line is provided to intersect with the projection curve of the first straight line in the horizontal plane.

[0025] In some embodiments, the second straight line and the projection curve of the third straight line in the horizontal plane intersect each other.

[0026] In some of the embodiments, the wall-mounted air conditioner indoor unit also includes a motor shield, which is buckled above the first mounting portion and is used to constrain the motor housing; the motor shield is provided with a third connecting portion, and the third connecting portion is arranged corresponding to the first connecting portion and the second connecting portion, and the same fastener passes through the third connecting portion, the second connecting portion and the first connecting portion in sequence to connect.

[0027] In some of the embodiments, the motor shield is provided with a third positioning portion, the third positioning portion is arranged corresponding to the first positioning portion and the second positioning portion, and the first positioning portion passes through the second positioning portion and cooperates with the third positioning portion.

[0028] In some embodiments, the housing is provided with a supporting portion, the supporting portion is arranged at the outer edge of the first mounting portion, and the supporting portion is arranged correspondingly close to the first positioning portion and the first connecting portion; the motor shield is provided with a contact portion, and at least the contact portion is located at the top of the supporting portion.

[0029] The present application provides a wall-mounted air conditioner indoor unit, comprising:

[0030] 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;

[0031] 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;

[0032] 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;

[0033] 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;

[0034] The drive motor further comprises:

[0035] The outer rotor is connected to the 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;

[0036] A stator, at least a portion of which is disposed in the receiving portion;

[0037] A motor housing is mounted on the casing, and at least a portion of the stator is disposed in the motor housing;

[0038] A first mounting portion is disposed on the housing; the motor housing is disposed on the first mounting portion;

[0039] A first connecting portion is disposed on the housing; the first connecting portion is disposed close to the first mounting portion;

[0040] A second connection portion, which is disposed on the motor housing; the second connection portion is disposed corresponding to the first connection portion;

[0041] A buffer member is provided at the connection between the first connection part and the second connection part, and the second connection part is connected to the first connection part through the buffer member;

[0042] A fastener passes through the buffer member and is connected to the first connecting portion.

[0043] The technical solution provides a buffer at the connection between the first connection part and the second connection part, and utilizes the buffer to absorb and buffer the vibration transmitted from the first connection part to the second connection part, thereby reducing the vibration transmitted to the second connection part, and further reducing the vibration transmitted by the casing.

[0044] In some embodiments, the buffer member passes through the second connecting portion along its length direction to contact the first connecting portion; the buffer member is provided with a passing portion along its length direction for the fastener to pass through.

[0045] In some embodiments, a plane passing through the midpoint of the stator and perpendicular to the stator axis is defined as a first plane, a distance from the first connecting portion to the first plane is L, a thickness of the stator is H, and H and L satisfy the relationship: L≥H / 2.

[0046] In the above embodiment, a wall-mounted air-conditioning indoor unit positions the motor casing in the casing by setting a first positioning portion on the casing and a second positioning portion on the motor casing, and uses the second positioning portion to cooperate with the first positioning portion to increase the accuracy of the motor casing in the casing, and avoids the motor casing from tilting at the casing and causing the axis of the stator to deviate from the axis of the outer rotor; and installs the motor casing in the casing by setting a first connecting portion on the casing and a second connecting portion on the motor casing, and connecting the second connecting portion to the first connecting portion through fasteners.

[0047] A wall-mounted air conditioner indoor unit is provided with a buffer component at the connection between a first connection part and a second connection part, and the buffer component is used to absorb and buffer the vibration transmitted from the first connection part to the second connection part, thereby reducing the vibration transmitted to the second connection part, and further reducing the vibration transmitted by the casing.

[0048] The drive motor in the above-mentioned wall-mounted air conditioner indoor unit is installed with high accuracy, the axis of the drive motor and the axis of the heat exchange fan have a small deviation, and the air conditioner indoor unit generates less vibration and noise when working, and the user experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a structural schematic diagram of an embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0050] Figure 2 It 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);

[0051] Figure 3 This is a schematic diagram of the internal structure of an embodiment of a wall-mounted air conditioner indoor unit of the present application when the outer cover is not installed;

[0052] Figure 4 It is a structural schematic diagram of a heat exchange fan, a drive motor and a motor shield installed on a base in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0053] Figure 5 for Figure 4 A partial enlarged view of the middle part;

[0054] Figure 6 This is a structural schematic diagram of a base in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0055] Figure 7 for Figure 6 A partial enlarged view of point B in the middle;

[0056] Figure 8 It is a cross-sectional view of a motor shield and a base connected to each other in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0057] Fig. 9 It is a structural schematic diagram of a motor shield in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0058] Fig.10 It is a structural schematic diagram of another angle of the motor shield in one embodiment of the wall-mounted air conditioner indoor unit of the present application;

[0059] Fig.11 It is a structural schematic diagram of another angle of the motor shield in one embodiment of the wall-mounted air conditioner indoor unit of the present application;

[0060] Fig.12 It is a structural schematic diagram 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;

[0061] Fig.13 This 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;

[0062] Fig.14 This is a structural schematic diagram of a drive motor assembled on a motor housing in one embodiment of a wall-mounted air conditioner indoor unit of the present application;

[0063] Fig.15 This is a structural schematic diagram from another angle when the driving motor is assembled on the motor housing in one embodiment of the wall-mounted air conditioner indoor unit of the present application;

[0064] Fig.16 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;

[0065] Fig.17 It is a structural schematic diagram of an embodiment of a wall-mounted air conditioner indoor unit of the present application when a motor shield is installed on a casing through a buffer.

[0066] In the figure,

[0067] 100, housing; 200, heat exchange fan; 300, heat exchanger; 400, electrical box; 500, motor shield; 600, motor housing; 700, drive motor; 800, bearing sleeve; 900, buffer;

[0068] 101, casing air inlet; 102, casing air outlet; 103, first plane;

[0069] 110, outer cover; 120, base; 130, bearing seat;

[0070] 121, third mounting portion; 122, second mounting portion; 123, first connecting portion; 124, first positioning portion; 125, supporting portion; 126, first mounting portion;

[0071] 210, support shaft;

[0072] 510, third connecting portion; 520, third positioning portion; 530, contact portion;

[0073] 610, housing; 620, cover; 630, shock-absorbing rubber;

[0074] 611, second connecting portion; 612, second positioning portion; 613, raised portion; 614, restraining portion;

[0075] 710, outer rotor; 720, stator; 730, connecting shaft; 731, first bearing. DETAILED DESCRIPTION

[0076] 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.

[0077] 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.

[0078] The terms "first ψ, "second ψ, "third ψ, etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar or similar objects or entities, and are not necessarily meant 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.

[0079] The terms "including" and "having" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a series of components is not necessarily limited to all the components expressly listed, but may include other components not expressly listed or inherent to such products or devices.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] like Figure 1As 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.

[0084] 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.

[0085] like Figure 2 As shown, the housing 100 includes an outer cover 110 , the outer cover 110 defines an outer cover 110 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 .

[0086] like Figure 3-Figure 6 As shown, the housing 100 includes a base 120 , which is disposed at the opening of the cavity of the outer cover 110 , and the base 120 and the outer cover 110 are detachably connected to each other.

[0087] 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 base opening and the cover opening are correspondingly arranged to jointly define a housing air outlet 102 .

[0088] 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.

[0089] 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 .

[0090] It should be noted that the air-conditioning wind can be cold air, hot air, or even normal temperature air.

[0091] like Figure 2 and Figure 4As 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.

[0092] 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.

[0093] It should be noted that, in a wall-mounted air conditioner indoor unit, the heat exchange fan 200 is usually a cross-flow fan.

[0094] like Fig.12 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.

[0095] like Figure 6 As shown, the base 120 is provided with a third mounting portion 121 , and a bearing seat 130 is provided in the third mounting portion 121 . The bearing seat 130 is used to install a second bearing so that the support shaft 210 can rotate relative to the base 120 .

[0096] It should be noted that the bearing seat 130 is made of a relatively soft material such as rubber or silicone, and the bearing seat 130 is deformed to facilitate installation of the second bearing on the bearing seat 130 .

[0097] The base 120 is provided with a second mounting portion 122 , the heat exchange fan 200 is disposed on the second mounting portion 122 , and the third mounting portion 121 and the second mounting portion 122 are arranged along the length direction of the housing 100 .

[0098] like Fig.13 As shown, the wall-mounted air conditioner indoor unit includes a drive motor 700, which is located at one end of the heat exchange fan 200 away from the support shaft 210, and the drive motor 700 is used to drive the heat exchange fan 200 to operate; the drive motor 700 is installed on the base 120 and is located inside the casing 100, and the drive motor 700 and the heat exchange fan 200 are arranged along the axial direction of the heat exchange fan 200.

[0099] like Figure 7 As shown, the base 120 is provided with a first mounting portion 126 , the driving motor 700 is disposed on the first mounting portion 126 , and the third mounting portion 121 , the second mounting portion 122 and the first mounting portion 126 are arranged along the length direction of the housing 100 .

[0100] like Figure 3As 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 700. The electrical box 400 is installed with electrical components such as a control board. The 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 art and will not be repeated here.

[0101] In the present application, the driving motor 700 is an outer rotor motor.

[0102] like Fig.13 and Fig.14 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 connected to one end of the heat exchange fan 200 facing the driving motor 700, and is used to drive the heat exchange fan 200 to rotate synchronously.

[0103] The outer rotor 710 may be detachably connected to the heat exchange fan 200 , or may be integrally formed with the heat exchange fan 200 .

[0104] 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 200 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.

[0105] like Fig.13 and Fig.15 As shown, the driving motor 700 includes a stator 720 , which is a non-rotatable part of the driving motor 700 . The stator 720 cooperates with the outer rotor 710 , and the outer rotor 710 can rotate relative to the stator 720 .

[0106] It should be noted that the specific composition of the outer rotor 710 and the specific composition of the stator 720, as well as the fact that the outer rotor 710 can rotate relative to the stator 720, belong to the prior art in this field and will not be described in detail here.

[0107] There is a gap between the outer rotor 710 and the stator 720 along the radial direction of the stator 720 to prevent the stator 720 and the outer rotor 710 from contacting each other to generate friction or collision when the outer rotor 710 rotates relative to the stator 720, thereby ensuring the reliability of the rotation of the outer rotor 710.

[0108] An accommodating portion is provided at one end of the outer rotor 710 away from the heat exchange fan 200 , and at least a portion of the stator 720 is disposed in the accommodating portion so that the stator 720 and the outer rotor 710 cooperate with each other.

[0109] In the present application, the accommodating portion is a cavity provided at one end of the outer rotor 710 facing the stator 720, and the opening of the cavity is arranged toward the stator 720 so that the side of the stator 720 facing the heat exchange fan 200 can extend into the cavity, thereby enabling the stator 720 and the outer rotor 710 to cooperate with each other.

[0110] There is a gap between the side of the stator 720 facing the heat exchange fan 200 and the bottom wall of the accommodating portion along the axial direction of the heat exchange fan 200 to prevent the stator 720 and the bottom wall from contacting and generating friction when the outer rotor 710 rotates relative to the stator 720, thereby affecting the rotation of the outer rotor 710.

[0111] like Fig.16 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 200; 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, so that the outer rotor 710 and the stator 720 are arranged coaxially, thereby increasing the reliability of the relative rotation between the two.

[0112] First bearings 731 are respectively disposed at both ends of the connecting shaft 730 in the length direction, and the connecting shaft 730 is connected to the outer rotor 710 and the stator 720 via the first bearings 731 .

[0113] A bearing sleeve 800 is provided in the stator 720 , and the bearing sleeve 800 is used to connect the first bearing 731 . The first bearing 731 located at one end of the connecting shaft 730 facing the stator 720 is provided in the bearing sleeve 800 located in the stator 720 , so that the connecting shaft 730 and the stator 720 are connected to each other.

[0114] A bearing sleeve 800 is provided inside the outer rotor 710, and the bearing sleeve 800 is used to connect the first bearing 731. The first bearing 731 located at one end of the connecting shaft 730 facing the outer rotor 710 is provided in the bearing sleeve 800 located inside the outer rotor 710, so that the connecting shaft 730 and the outer rotor 710 are connected to each other.

[0115] like Fig.12 , Fig.14 and Fig.15 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 120 to ensure the firmness of the installation of the stator 720. Among them, the motor housing 600 is arranged in the first installation part 126.

[0116] like Figure 7 As shown, the base 120 is provided with a first connecting portion 123 , and the first connecting portion 123 is arranged close to the first mounting portion 126 for connecting with the motor housing 600 .

[0117] In some embodiments, the first connecting portion 123 is provided at the outer edge of the first mounting portion 126 along the length direction of the housing 100.

[0118] As Fig.12 , Fig.14 and Fig.15 As shown in

[0119] In the present application, the first connecting portion 123 is provided with a first connecting hole, and the second connecting portion 611 is provided with a second connecting hole. The same fastener is disposed in the first connecting hole and the second connecting hole at the same time, so that the first connecting portion 123 and the second connecting portion 611 are connected to each other.

[0120] The first connecting portions 123 are generally provided in two, and the two first connecting portions 123 are correspondingly disposed at the outer edges of the opposite sides of the first mounting portion 126; correspondingly, the second connecting portions 611 are also provided in two, and the two second connecting portions 611 are arranged in one-to-one correspondence with the two first connecting portions 123. By providing the two first connecting portions 123 and the two second connecting portions 611 to be correspondingly connected, the firmness of the connection between the first connecting portion 123 and the second connecting portion 611 is increased.

[0121] Define a straight line passing through the midpoint of the stator 720 in the horizontal plane and perpendicular to the axis of the stator 720 as the first straight line.

[0122] The connecting line between the two first connecting portions 123 is the second straight line, and the second straight line intersects with the projection curve of the first straight line in the horizontal plane, that is, the two first connecting portions 123 are diagonally arranged to increase the stability of the connection between the motor housing 600 and the base 120.

[0123] As Fig.17 shown, define a plane passing through the midpoint of the stator 720 and perpendicular to the axis of the stator 720 as the first plane 103. The distance from the first connecting portion 123 to the first plane 103 is L, and the thickness of the stator 720 is H. H and L satisfy the relationship: L≥H / 2. It should be noted that the thickness direction of the stator 720 is set along the axis direction of the stator 720.

[0124] If L < H / 2, then the first connecting portion 123 is closer to the midpoint of the stator 720 than the two sides in the axial direction of the stator 720. The first connecting portion 123 and the second connecting portion 611 may be affected by the gravity of the motor housing 600, and the stability and reliability of the connection between the motor housing 600 and the base 120 are weak.

[0125] If L=H / 2, the two first connection parts 123 are arranged on both sides of the stator 720 axially, and the first connection part 123 and the second connection part 611 may be affected by the gravity of the motor housing 600 , and the stability and reliability of the connection between the motor housing 600 and the base 120 are weak.

[0126] like Figure 7 As shown, the base 120 is provided with a first positioning portion 124 , and the first positioning portion 124 is arranged close to the first mounting portion 126 , and is used to position the motor housing 600 at the setting position of the base 120 .

[0127] In some embodiments, the first positioning portion 124 is disposed at an outer edge of the first mounting portion 126 along the length direction of the housing 100 .

[0128] like Fig.12 , Fig.14 and Fig.15 As shown, the motor housing 600 is provided with a second positioning portion 612 , and the second positioning portion 612 is arranged corresponding to the first positioning portion 124 ; the second positioning portion 612 and the first positioning portion 124 cooperate with each other to position the motor housing 600 at the installation position of the base 120 .

[0129] The first positioning parts 124 are usually provided in two pieces, and the two first positioning parts 124 are correspondingly provided at the outer edges of the mounting part on both sides; accordingly, the second positioning parts 612 are also provided in two pieces, and the two second positioning parts 612 are provided in one-to-one correspondence with the two first positioning parts 124. By providing the two first positioning parts 124 and the two second positioning parts 612 in correspondence, the positioning effect of the motor housing 600 is increased, and the axis of the motor housing 600 is prevented from being offset.

[0130] The line connecting the two first positioning portions 124 is a third straight line, and the third straight line intersects with the projection curve of the first straight line in the horizontal plane, that is, the two first positioning portions 124 are diagonally arranged to increase the positioning effect of the motor housing 600 .

[0131] The projections of the second straight line and the third straight line in the same horizontal plane intersect, so that the two first positioning portions 124 and the two first connecting portions 123 are respectively arranged along different diagonals, thereby increasing the restraining effect of the motor housing 600 .

[0132] In the present application, the two first positioning portions 124 and the two first connecting portions 123 are correspondingly arranged on the two side outer edges of the first mounting portion 126 extending along the length direction of the casing 100, wherein the first positioning portion 124 close to the rear side of the casing 100 is arranged closer to the heat exchange fan 200 than the first connecting portion 123, and the first connecting portion 123 close to the front side of the casing 100 is arranged closer to the heat exchange fan 200 than the first positioning portion 124.

[0133] In some embodiments, the first positioning portion 124 is a positioning column, the second positioning portion 612 is a positioning hole, and the first positioning portion 124 is disposed in the second positioning portion 612 to position and constrain the motor housing 600 .

[0134] When two first positioning portions 124 are provided, one of the first positioning portions 124 and the corresponding second positioning portion 612 are used as reference positioning.

[0135] In the reference positioning, the single-side gap between the inner wall of the second positioning portion 612 and the outer wall of the first positioning portion 124 is S, and S satisfies: S≥0.1mm, S≤0.5mm.

[0136] If S<0.1 mm, the gap between the inner wall of the second positioning portion 612 and the outer wall of the first positioning portion 124 is too small, which increases the difficulty of disposing the first positioning portion 124 in the second positioning portion 612 .

[0137] If S>0.5 mm, the gap between the inner wall of the second positioning portion 612 and the outer wall of the first positioning portion 124 is too large, which will reduce the positioning accuracy of the motor housing 600.

[0138] The unilateral gap between the other first positioning portion 124 and the corresponding second positioning portion 612 may meet the medium level or above tolerance level in the linear dimension limit deviation numerical table. It should be noted that the linear dimension limit deviation numerical table belongs to the prior art in this field and will not be described in detail here.

[0139] like Fig.14 As shown, a protrusion 613 is provided on the outer periphery of the motor housing 600 , and the protrusion 613 is arranged to protrude from the outer periphery of the motor housing 600 , and the second connecting portion 611 and the second positioning portion 612 are respectively arranged on the protrusion 613 .

[0140] By providing a protrusion 613 on the outer periphery of the motor housing 600 , it is convenient to provide the second connection portion 611 and the second positioning portion 612 on the motor housing 600 , and it is convenient for the second connection portion 611 to be connected to the first connection portion 123 and the second positioning portion 612 to cooperate with the first positioning portion 124 .

[0141] When the driving motor 700 is working, vibration is inevitable. The driving motor 700 is installed on the base 120. The vibration is easily transmitted to the housing 100 and transmitted through the housing 100, which will not only reduce the performance of the indoor unit of the wall-mounted air conditioner, but also cause trouble to the user and reduce the user experience. Fig.17 As shown, a buffer member 900 is provided at the connection between the first connection portion 123 and the second connection portion 611 , and the buffer member 900 is used to absorb and buffer vibration, thereby reducing the vibration transmitted to the housing 100 , thereby preventing the vibration from being transmitted through the housing 100 .

[0142] Specifically, the buffer member 900 passes through the second connection portion 611 along its length direction and contacts the first connection portion 123 , so that the first connection portion 123 is connected to the second connection portion 611 through the buffer member 900 , thereby reducing vibration transmitted between the first connection portion 123 and the second connection portion 611 .

[0143] A through portion is defined inside the buffer 900 and is arranged along the length direction of the buffer 900 ; a fastener passes through the through portion and is connected to the first connection portion 123 , so that the second connection portion 611 and the first connection portion 123 are fixedly connected to each other.

[0144] The buffer 900 is usually made of a soft material such as rubber or silicone.

[0145] Since the buffer member 900 is disposed through the second connection portion 611 , the distance between the buffer member 900 and the first plane 103 is D, the thickness of the stator 720 is H, and H and D satisfy the relationship: D≥H / 2.

[0146] like Figure 5 As shown, the wall-mounted air conditioner indoor unit includes a motor shield 500, which is arranged corresponding to the first mounting portion 126. The motor shield 500 is located above the first mounting portion 126 so that the motor shield 500 and the base 120 can jointly clamp the motor housing 600, thereby increasing the firmness of the connection between the motor housing 600 and the base 120.

[0147] like Figure 9-11 As shown, the motor shield 500 is provided with a third connection portion 510 , and the third connection portion 510 is arranged corresponding to the first connection portion 123 , and the fastener passes through the third connection portion 510 and is connected to the first connection portion 123 , so that the motor shield 500 and the base 120 are connected to each other.

[0148] The third connection portion 510 and the second connection portion 611 are disposed correspondingly, and the same fastener is connected to the third connection portion 510 and the second connection portion 611 so that the motor shield 500 and the motor housing 600 are connected to each other.

[0149] In the present application, the third connection part 510 is arranged corresponding to the first connection part 123 and the second connection part 611, and the fastener passes through the third connection part 510, the second connection part 611 in sequence and is connected to the first connection part 123, so that the same fastener can simultaneously connect the motor shield 500, the motor housing 600 and the base 120, thereby increasing the assembly efficiency of the motor shield 500, the motor housing 600 and the base 120, and the number of fasteners used can be saved.

[0150] When two first connection parts 123 are provided, two third connection parts 510 are also provided. The two third connection parts 510 are provided corresponding to the two first connection parts 123 to increase the firmness of the connection between the motor shield 500 and the base 120. The two third connection parts 510 are provided correspondingly on both sides of the motor shield 500 along the thickness direction of the casing 100.

[0151] like Figure 9-11 As shown, the motor shield 500 is provided with a third positioning portion 520 , and the third positioning portion 520 is arranged corresponding to the first positioning portion 124 . The first positioning portion 124 and the third positioning portion 520 cooperate with each other to position the motor shield 500 relative to the base 120 .

[0152] The third positioning portion 520 is disposed correspondingly to the second positioning portion 612 , and the second positioning portion 612 and the third positioning portion 520 cooperate with each other to locate the relative positions of the motor shield 500 and the motor housing 600 .

[0153] In the present application, the third positioning portion 520 is arranged corresponding to the first positioning portion 124 and the second positioning portion 612. The first positioning portion 124 passes through the second positioning portion 612 and cooperates with the third positioning portion 520 to simultaneously position the relative position of the motor shield 500 and the base 120, the relative position of the motor shield 500 and the motor housing 600, and the relative setting of the motor housing 600 and the base 120, which not only improves the positioning efficiency but also has a good positioning effect.

[0154] When two first positioning portions 124 are provided, two third positioning portions 520 are also provided. The two third positioning portions 520 are provided corresponding to the two first positioning portions 124 to increase the positioning effect of the motor shield 500 and the base 120 ; the two third positioning portions 520 are provided correspondingly on both sides of the motor shield 500 along the thickness direction of the casing 100 .

[0155] like Figure 7 and Figure 8 As shown, the base 120 is provided with a supporting portion 125 , and the supporting portion 125 is provided at the outer edge of the first mounting portion 126 , and the supporting portion 125 is provided correspondingly to the first positioning portion 124 and the first connecting portion 123 .

[0156] like Figure 8-Figure 11 As shown, the motor shield 500 is provided with a contact portion 530. When the motor shield 500 is installed on the base 120, at least part of the contact portion 530 is located on the top of the support portion 125 to support the motor shield 500 and prevent the motor shield 500 from squeezing the motor housing 600 and causing the motor housing 600 to tilt.

[0157] Since the number of the first connection parts 123 is usually two, the number of the support parts 125 is also correspondingly two. The two support parts 125 are provided corresponding to the two first connection parts 123 , and the two support parts 125 support the two sides of the motor shield 500 provided along the thickness direction of the casing 100 .

[0158] In order to facilitate the stator 720 to be disposed in the motor housing 600 or to facilitate the stator 720 to be removed from the motor housing 600, the motor housing 600 is designed as a split structure in the present application.

[0159] Specifically, Fig.16 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 a part of the stator 720 is arranged in the through cavity.

[0160] The inner wall of the shell 610 is provided with a constraint portion 614 , which protrudes from the inner wall of the shell 610 . The constraint portion 614 is used to limit the installation position of the stator 720 in the through cavity and fix the stator 720 so that the stator 720 is installed in the motor housing 600 .

[0161] A shock-absorbing rubber 630 is installed on the outer periphery of the stator 720 , 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.

[0162] In some embodiments, the constraint portion 614 cooperates with the shock-absorbing rubber 630 so that the constraint portion 614 indirectly constrains the stator 720 .

[0163] The way in which the motor housing 600 constrains the stator 720 or the way in which the stator 720 is fixed to the motor housing 600 belongs to conventional technical means in the art and will not be described in detail here.

[0164] The side of the outer rotor 710 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 720 can be arranged in the accommodating portion to cooperate with the outer rotor 710 .

[0165] It should be noted that the protrusion 613 is disposed on the outer periphery of the housing 610 .

[0166] like Fig.14 and Fig.16 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 200, so that the stator 720 is firmly disposed in the through cavity.

[0167] It should be noted that the opening and closing arrangement of the cover body 620 belongs to the prior art in this field and will not be described in detail here.

[0168] The installation steps of the above-mentioned wall-mounted air-conditioner indoor unit motor casing 600 and motor shield 500 are as follows: place the motor casing 600 on the first installation portion 126, and set the second positioning portion 612 on the first positioning portion 124, and the second connecting portion 611 is correspondingly arranged with the first connecting portion 123; then buckle the motor shield 500 on the top of the motor casing 600, and match the third positioning portion 520 with the first positioning portion 124, the third connecting portion 510 with the second connecting portion 611 and the first connecting portion 123, and connect the same fastener through the third connecting portion 510, the second connecting portion 611 and the first connecting portion 123, so that the motor shield 500, the motor casing 600 and the base 120 are interconnected as a whole.

[0169] The above-mentioned wall-mounted air conditioner indoor unit is provided with a first positioning portion 124 on the casing 100, a second positioning portion 612 on the motor casing 600, and a third positioning portion 520 on the motor shield 500. The first positioning portion 124, the second positioning portion 612, and the third positioning portion 520 cooperate with each other to position the relative positions between the motor casing 600, the motor shield 500, and the base 120, thereby increasing the accuracy of the installation position of the motor casing 600 on the casing 100, and preventing the motor casing 600 from tilting at the installation position of the casing 100, thereby preventing the axis of the stator 720 from deviating from the outer rotor 720. 10; by providing a first connecting portion 123 on the casing 100, a second connecting portion 611 on the motor casing 600, and a third connecting portion 510 on the motor shield 500, the third connecting portion 510, the second connecting portion 611 and the first connecting portion 123 are connected by the same fastener, so that the motor casing 600, the motor shield 500 and the base 120 are connected to each other, which can not only increase the firmness of the installation of the motor casing 600, but also save the number of fasteners, improve the assembly efficiency of the motor casing 600, the motor shield 500 and the base 120, and reduce the assembly cost.

[0170] The above-mentioned wall-mounted air conditioner indoor unit sets a buffer member 900 at the connection between the first connection part 123 and the second connection part 611, and uses the buffer member 900 to absorb and buffer the vibration transmitted from the first connection part 123 to the second connection part 611, thereby reducing the vibration transmitted to the second connection part 611, and further reducing the vibration transmitted by the casing 100.

[0171] The drive motor 700 in the above-mentioned wall-mounted air conditioner indoor unit is installed with high accuracy, the axis of the drive motor 700 has a small deviation from the axis of the heat exchange fan 200, and the air conditioner indoor unit generates less vibration and noise when working, and the user experience is good.

[0172] 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.

[0173] 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; 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 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: An outer 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 mounted on the housing, wherein at least a portion of the stator is disposed in the motor housing; A first mounting portion, which is arranged on the housing; the motor housing is arranged on the first mounting portion; A first positioning portion, which is disposed on the housing; the first positioning portion is disposed close to the first mounting portion; A second positioning portion, which is disposed on the motor housing, and the second positioning portion is disposed corresponding to the first positioning portion; A first connecting portion, which is disposed on the housing; the first connecting portion is disposed close to the first mounting portion; A second connection portion, which is disposed on the motor housing; the second connection portion is disposed corresponding to the first connection portion; A fastener passes through the second connecting portion and is connected to the first connecting portion to connect the motor housing and the machine housing.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The number of the first connection parts is two, and the two first connection parts are correspondingly arranged at the outer edges of the first mounting part on both sides opposite to each other; a straight line passing through the midpoint of the stator in a horizontal plane and perpendicular to the axis of the stator is defined as a first straight line; a line connecting the two first connection parts is a second straight line, and the second straight line is arranged to intersect with a projection curve of the first straight line in a horizontal plane.

3. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that: There are two first positioning parts, and the two first positioning parts are correspondingly arranged at the outer edges of the two opposite sides of the first mounting part; the connecting line between the two first positioning parts is a third straight line, and the third straight line is arranged to intersect with the projection curve of the first straight line in the horizontal plane.

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that: The second straight line is arranged to intersect with a projection curve of the third straight line in a horizontal plane.

5. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that: The wall-mounted air conditioner indoor unit also includes a motor shield, which is buckled above the first mounting portion and is used to constrain the motor housing; the motor shield is provided with a third connecting portion, and the third connecting portion is arranged corresponding to the first connecting portion and the second connecting portion, and the same fastener passes through the third connecting portion and the second connecting portion in sequence to connect with the first connecting portion.

6. The wall-mounted air conditioner indoor unit according to claim 5, characterized in that: The motor shield is provided with a third positioning portion, and the third positioning portion is arranged corresponding to the first positioning portion and the second positioning portion, and the first positioning portion passes through the second positioning portion and cooperates with the third positioning portion.

7. The wall-mounted air conditioner indoor unit according to claim 5, characterized in that: The housing is provided with a supporting portion, the supporting portion is arranged at the outer edge of the first mounting portion, and the supporting portion is arranged correspondingly close to the first positioning portion and the first connecting portion; the motor shield is provided with a contact portion, at least the contact portion is located at the top of the supporting portion.

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; 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 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: An outer 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 mounted on the housing, wherein at least a portion of the stator is disposed in the motor housing; A first mounting portion, which is arranged on the housing; the motor housing is arranged on the first mounting portion; A first connecting portion, which is disposed on the housing; the first connecting portion is disposed close to the first mounting portion; A second connection portion, which is disposed on the motor housing; the second connection portion is disposed corresponding to the first connection portion; a buffer member, which is provided at the connection between the first connection portion and the second connection portion; The second connecting portion is connected to the first connecting portion through the buffer member; A fastener passes through the buffer member and is connected to the first connecting portion.

9. The wall-mounted air conditioner indoor unit according to claim 8, characterized in that: The buffer member passes through the second connection portion along the length direction thereof and contacts the first connection portion; the buffer member is provided with a passing portion along the length direction thereof for the fastener to pass through.

10. The wall-mounted air conditioner indoor unit according to claim 1 or 8, characterized in that: A plane passing through the midpoint of the stator and perpendicular to the stator axis is defined as a first plane, a distance from the first connecting portion to the first plane is L, a thickness of the stator is H, and H and L satisfy a relationship: L≥H / 2.

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