An air conditioner indoor unit and an air conditioner

Abstract

An embodiment of the present application provides an indoor air conditioner and an air conditioner. The indoor air conditioner includes a chassis, a cross-flow fan, a motor assembly, an electronic control box, and a motor gland assembly. The chassis is configured with a volute; the cross-flow fan is rotatably arranged in the volute; the motor assembly includes a motor and a mounting member connected to each other. The motor is arranged in the volute and connected to an axial end of the cross-flow fan; the motor gland assembly is used to fix the mounting member on the chassis and can receive the condensed water generated by the heat exchanger; the electronic control box is arranged on one side of the heat exchanger close to the motor assembly. Along the length direction of the chassis, a part of the motor gland assembly is arranged to block between the electronic control box and the heat exchanger. In the indoor air conditioner according to the embodiment of the present application, since the motor is arranged in the volute, the motor does not additionally occupy the installation space of the chassis along the length direction, which can save the motor installation space in the prior art. Without sacrificing the air volume, the structure of the indoor air conditioner is more compact, and the overall length of the machine is significantly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an air conditioning indoor unit and an air conditioner. Background Art

[0002] Taking a wall-mounted air conditioner as an example, please refer to the figure. The inner rotor motor is arranged outside the volute, and the motor shaft of the inner rotor motor passes through the side wall of the volute and extends into the air duct to be connected to the cross-flow impeller drive. The electric control box is arranged at the end of the inner rotor motor away from the volute. That is to say, the volute, the inner rotor motor, and the electric control box are arranged in sequence along the length direction of the wall-mounted air conditioner. The overall length of the wall-mounted air conditioner is at least greater than the maximum length between the volute and the electric control box. The overall length of the wall-mounted air conditioner in the prior art is relatively long. Summary of the invention

[0003] In view of this, the embodiments of the present application hope to provide an air-conditioning indoor unit and an air conditioner with a compact structure and a relatively small overall length.

[0004] To achieve the above-mentioned purpose, an embodiment of the present application provides an air-conditioning indoor unit, including a chassis, a crossflow impeller, a motor assembly, an electric control box, and a motor gland assembly, wherein the chassis is provided with a volute; the crossflow impeller is rotatably disposed in the volute; the motor assembly includes a motor and a mounting member connected to each other, the motor being disposed in the volute and connected to one axial end of the crossflow impeller; the motor gland assembly fixes the mounting member to the chassis and is capable of receiving condensed water generated by the heat exchanger; the electric control box is disposed on a side of the heat exchanger close to the motor assembly, and along the length direction of the chassis, a portion of the motor gland assembly is disposed between the electric control box and the heat exchanger.

[0005] In some embodiments, the air conditioner indoor unit includes a liquid inlet pipeline and an air collecting pipeline connected to the heat exchanger, and an avoidance gap is provided on the chassis. The liquid inlet pipeline and the air collecting pipeline are arranged from the top of the electrical control box through the avoidance gap to the rear of the chassis.

[0006] In some embodiments, the minimum distance between the outer end surface of the chassis along the length direction and the avoidance gap is smaller than the width of the avoidance gap.

[0007] In some embodiments, the motor cover assembly includes a motor cover, a water receiving plate located on the side of the motor cover close to the electric control box, and a support plate located on the side of the motor cover away from the electric control box, one end of the heat exchanger close to the electric control box is supported on the support plate, and the water receiving plate barrier is arranged between the heat exchanger and the electric control box; the motor cover presses the mounting part against the side plate on one side of the volute along the length direction.

[0008] In some embodiments, the motor gland is sealingly abutted against the top side of the side plate of the volute, and the support plate and the side plate together form a part of the air duct required for the cross-flow impeller.

[0009] In some embodiments, a first installation notch is provided on the top side of the side plate of the volute, and a second installation notch is formed on the bottom side of the motor gland. The second installation notch and the first installation notch jointly enclose an installation hole; the installation member includes a support column body extending along the axial direction of the cross-flow impeller, and the motor is disposed at one end of the support column body close to the cross-flow impeller, and the support column body is fixedly inserted through the installation hole.

[0010] In some embodiments, the chassis is provided with a water receiving channel, and the motor gland assembly is provided with a drain hole. The condensed water received by the motor gland assembly enters the water receiving channel through the drain hole.

[0011] In some embodiments, the motor gland is connected between the bottom end of the support plate and the bottom end of the water receiving plate. The water receiving plate has at least one stepped surface, and the stepped surface is used to drain the condensed water received by the water receiving plate to the drain hole located in front of the motor gland.

[0012] In some embodiments, the top end of the water receiving plate is bent toward the side of the electronic control box to form a boss structure, and the boss structure covers a part of the upper surface of the electronic control box.

[0013] In some embodiments, the chassis is provided with a clamping hole. The motor gland assembly includes a clamping rib protruding from the rear side of the water receiving plate and extending obliquely upward. The clamping rib is clamped into the clamping hole, and a connection hole is provided on the front side of the motor gland. A screw passes through the connection hole and is screwed into the chassis.

[0014] In some embodiments, the support plate includes a vertical sub-plate and a flange extending from the edge of the vertical sub-plate away from the motor gland. The flange and the vertical sub-plate enclose an arc-shaped avoidance area, and the end of the cross-flow impeller extends into the arc-shaped avoidance area; one end of the heat exchanger close to the motor gland assembly has a connection plate, and the heat exchanger is supported on the flange through the connection plate.

[0015] In some embodiments, a convex rib is formed on the outer surface of the flange facing away from the cross-flow impeller, and the connection plate is located on the side of the convex rib facing the water receiving plate.

[0016] In some embodiments, the cross-flow impeller includes a air supply section and a shaft-end mounting section connected to each other along the length direction. The shaft-end mounting section includes an annular housing connected to the air supply section and a radial spacer disposed inside the annular housing and close to one end of the air supply section. The motor is disposed inside the shaft-section mounting section. The radial spacer is provided with a driving hole, and the power output shaft passes through the driving hole to drive the cross-flow impeller to rotate.

[0017] In some embodiments, the motor is an outer-rotor motor. The outer-rotor motor includes a power output shaft, an outer rotor, and a stator. The power output shaft is connected to the cross-flow impeller, and the mounting member is fixedly connected to the side of the stator facing away from the cross-flow impeller.

[0018] The embodiment of the present application further provides an air conditioner, including an outdoor unit of the air conditioner and any one of the indoor units of the air conditioner described above. The outdoor unit of the air conditioner and the indoor unit of the air conditioner are connected through a refrigerant pipe.

[0019] In the indoor unit of the air conditioner according to the embodiment of the present application, since the motor is disposed in the volute, along the length direction of the chassis, there is no longer a motor spaced between the heat exchanger and the electric control box. The motor does not additionally occupy the installation space of the chassis along the length direction, and the installation space of the motor in the prior art can be saved. When using a cross-flow impeller of the same size, that is, without sacrificing the air volume, the structure of the indoor unit of the air conditioner according to the embodiment of the present application is more compact, the overall length of the unit is significantly reduced, which can not only significantly reduce the production cost, but also reduce the packaging size, reduce the transportation and storage space, and also save the installation space for the user, improve the user experience, and enhance the product competitiveness. Description of the Drawings

[0020] Figure 1 Partial structural schematic diagram of an indoor unit of an air conditioner according to an embodiment of the present application;

[0021] Figure 2 is Figure 1 coordination schematic diagram of the chassis and the motor assembly in

[0022] Figure 3 is Figure 1 coordination schematic diagram of the structure shown and the heat exchanger;

[0023] Figure 4 is Figure 3 schematic diagram of another perspective of the structure shown;

[0024] Figure 5 is Figure 4 schematic diagram of the structure shown with part of the chassis omitted;

[0025] Figure 6 is Figure 5Schematic diagram of the mating of the connecting plate of the heat exchanger with the motor assembly and the electronic control box;

[0026] Figure 7 is Figure 6 Mating diagram of the shown structure with the cross-flow impeller;

[0027] Figure 8 Schematic diagram of the structure of the cross-flow impeller according to an embodiment of the present application;

[0028] Figure 9 Schematic diagram of the structure of the motor gland assembly according to an embodiment of the present application, wherein the dotted line and the arrow indicate the flow direction of the condensed water;

[0029] Figure 10 is Figure 9 Schematic diagram of another view of the shown structure;

[0030] Figure 11 is Figure 9 Schematic diagram of yet another view of the shown structure;

[0031] Figure 12 Schematic diagram of the structure of the motor assembly according to an embodiment of the present application;

[0032] Figure 13 is Figure 12 Exploded view of the shown structure;

[0033] Figure 14 is Figure 13 Schematic diagram of another view of the shown structure;

[0034] Figure 15 is Figure 11 Schematic diagram of the mating of the shown motor gland assembly with Figure 12 the shown motor assembly.

[0035] Explanation of reference numerals

[0036] Motor assembly 1; motor 11; power output shaft 111; outer rotor 112; stator 113; screw hole 113a; mounting part 12; support column 121; stop surface 121a; receiving groove 121c; damping sleeve 122; annular groove 122a; retaining cover 123; through hole 123b; frustum 1231; baffle 1232; end plate 124; chassis 3; volute 31; side plate 311; avoidance notch 3a; clamping hole 3c; heat exchanger 4; connecting plate 41; end 421; cross-flow impeller 5; air supply section 51; shaft end mounting section 52; annular housing 521; radial partition plate 522; drive hole 522a; electronic control box 6; motor gland assembly 7; motor gland 71; second mounting notch 71a; drain hole 71b; connection hole 71c; water receiving plate 72; boss structure 721; retaining edge 722; step surface 72a; support plate 73; vertical sub-plate 731; flange 732; arc-shaped avoidance area 73a; rib 7321; clamping rib 74; liquid inlet pipeline 81; gas collecting pipeline 82 Detailed implementation manners

[0037] It should be noted that, without conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other. The detailed description in the specific implementation manners should be understood as an explanatory illustration of the purpose of the present application and should not be regarded as an improper limitation to the present application.

[0038] In the description of the embodiments of the present application, the orientation or positional relationship of "upper", "lower", "left", "right", "front", "back", "top", "bottom", "length direction", "axial direction" is based on the Figure 2 orientation or positional relationship shown. Among them, "front" refers to the Figure 2 direction perpendicular to the paper surface and outward, and "back" refers to the Figure 2 direction perpendicular to the paper surface and inward. It should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0039] In the embodiments of the present application, the length direction of the heat exchanger 4, the length direction of the chassis 3, the length direction of the volute 31, and the axial direction of the cross-flow impeller 5 all refer to the same direction, which is the left-right direction along Figure 2 .

[0040] The embodiments of the present application provide an air conditioner indoor unit. Please refer to Figures 1 to 5 , the air conditioner indoor unit includes a chassis 3, a heat exchanger 4, an electronic control box 6, a cross-flow impeller 5, a motor assembly 1, and a motor gland assembly 7.

[0041] Please refer to Figure 2, the chassis 3 is configured with a volute 31 which has an air inlet and an air outlet. Both the volute 31 and the cross-flow impeller 5 extend along the length direction of the chassis 3, and the cross-flow impeller 5 is rotatably arranged in the volute 31. The heat exchanger 4 is covered above the air inlet, and the air flow after heat exchange by the heat exchanger 4 can enter the volute 31 through the air inlet under the action of the cross-flow impeller 5 and then be discharged from the air outlet of the volute 31.

[0042] The heat exchanger 4 serves as the heat exchange medium of the heat pump system. When the air conditioner indoor unit needs to refrigerate, the heat exchanger 4 is the evaporator of the heat pump system; when the air conditioner indoor unit needs to heat, the heat exchanger 4 is the condenser of the heat pump system. The electric control box 6 is used to accommodate the electronic components of the air conditioner indoor unit, such as the main control board, power supply, control circuit, wiring board, etc.

[0043] The motor assembly 1 includes a motor 11 and a mounting member 12 which are connected to each other. The motor 11 is arranged in the volute 31 and is connected to one axial end of the cross-flow impeller 5; the motor gland assembly 7 is used to fix the mounting member 12 on the chassis 3 and can catch the condensed water generated by the heat exchanger 4. It can be understood that the motor gland assembly 7 mainly catches the condensed water generated at the end of the heat exchanger 4. The electric control box 6 is arranged on one side of the heat exchanger 4 close to the motor assembly 1, that is to say, the electric control box 6 and the motor assembly 1 are arranged on the same side of the chassis 3 along the length direction. For example, they are both arranged on the right side of the chassis 3. Along the length direction of the chassis 3, a part of the motor gland assembly 7 is arranged to block between the electric control box 6 and the heat exchanger 4.

[0044] That a part of the motor gland assembly 7 is arranged to block between the electric control box 6 and the heat exchanger 4 means that the motor gland assembly 7 is airtight and watertight, and the condensed water will not pass through the motor gland assembly 7 and splash onto the electric control box 6.

[0045] In the air conditioner indoor unit of the embodiment of the present application, since the motor 11 is arranged in the volute 31, therefore, along the length direction of the chassis 3, there is no longer a motor between the heat exchanger 4 and the electric control box 6. The motor will not additionally occupy the installation space of the chassis 3 along the length direction, and the installation space of the motor in the prior art can be saved. When using the cross-flow impeller 5 of the same size, that is, without sacrificing the air volume, the structure of the air conditioner indoor unit of the embodiment of the present application is more compact, the overall length is significantly reduced, which can not only significantly reduce the production cost, but also reduce the packaging size, reduce the transportation and inventory storage space, and can also save the installation space for users, improve the user experience, and enhance the product competitiveness.

[0046] In addition, during the rotation of the cross-flow impeller 5, part of the air flow passes through the surface of the motor 11, and the heat generated by the motor 11 is carried out of the volute 31 by the air flow, which plays a good role in dissipating heat from the motor 11. There is no need to separately open heat dissipation holes on the chassis 3, improving the structural strength of the chassis 3. It should be noted that the wall-mounted indoor unit of the air conditioner is installed on the wall by relying on the chassis. Therefore, as a stress-bearing structural member, the chassis needs to have a high structural strength. In the prior art, in order to dissipate heat from the motor, heat dissipation holes are opened on the chassis, which easily causes stress concentration at the openings and reduces the structural strength of the chassis.

[0047] In the embodiment of the present application, the motor gland assembly 7 not only plays a role in installing the motor assembly 1, but also plays a role in receiving condensed water and protecting the electric control box 6 from water and moisture.

[0048] Please refer to Figures 3 to 5 , the indoor unit of the air conditioner includes a liquid inlet pipe 81 and a gas collecting pipe 82 connected to the heat exchanger 4. The liquid refrigerant in the liquid inlet pipe 81 flows into the heat exchanger 4, and the gaseous refrigerant discharged from the heat exchanger 4 enters the gas collecting pipe 82.

[0049] In one embodiment, please refer to Figures 2 to 4 , an avoidance notch 3a is provided on the chassis 3, and the liquid inlet pipe 81 and the gas collecting pipe 82 are wound from above the electric control box 6 through the avoidance notch 3a to the rear of the chassis 3. That is to say, at least a part of the electric control box 6 is located below the liquid inlet pipe 81 and the gas collecting pipe 82, and the space below the liquid inlet pipe 81 and the gas collecting pipe 82 can be fully utilized.

[0050] In one embodiment, please refer to Figure 2 , the minimum distance L2 between the end face of the chassis 3 in the length direction and the avoidance notch 3a is less than the width L1 of the avoidance notch 3a. Since the electric control box 6 can occupy the installation space of the chassis 3 within the width range where the avoidance notch 3a is located, the size of the above-mentioned L2 can be significantly reduced.

[0051] The specific structural form of the motor gland assembly 7 is not limited. Exemplarily, in some embodiments, please refer to Figures 9 to 11, the motor gland assembly 7 includes a motor gland 71, a water receiving plate 72 located on the side of the motor gland 71 close to the electric control box 6, and a support plate 73 located on the side of the motor gland 71 facing away from the electric control box 6. One end of the heat exchanger 4 close to the electric control box 6 is supported on the support plate 73, that is, the support plate 73 plays a role in supporting the heat exchanger 4; the water receiving plate 72 is disposed between the heat exchanger 4 and the electric control box 6 in a blocking manner. The water receiving plate 72 plays a good role in waterproofing and moisture-proofing for the electric control box 6. The motor gland 71 presses the mounting member 12 against the side plate 311 on one side of the volute 31 in the length direction. The motor 11 is supported on the side plate 311 of the volute 31 through the mounting member 12, that is to say, the motor 11 is suspended in the volute 31, that is, the motor 11 is in a stressed state of cantilever support.

[0052] In some embodiments, the chassis 3 is provided with a water receiving channel, and the motor gland assembly 7 is provided with a drain hole 71b. The condensed water received by the motor gland assembly 7 enters the water receiving channel through the drain hole 71b. The drain hole 71b can centrally discharge the condensed water received in the motor gland assembly 7 into the water receiving channel on the chassis 3, which is convenient for centralized discharge from the chassis 3.

[0053] The number of the drain holes 71b is not limited, as long as the condensed water received by the motor gland assembly 7 can be discharged into the water receiving channel in time. Exemplarily, in the embodiments of the present application, at least one drain hole 71b is provided on each of the front and rear sides of the motor gland 71.

[0054] It should be noted that the motor gland assembly 7 does not only rely on the water receiving plate 72 to receive water. Specifically, the motor gland 71 can also receive condensed water and guide the condensed water to the drain hole 71b.

[0055] It should be noted that the water receiving channel on the chassis 3 is also used to receive the condensed water generated by the heat exchanger 4. For example, the water receiving channel can be provided around the volute 31 so that the condensed water generated at each part of the heat exchanger 4 can flow smoothly into the water receiving channel.

[0056] In some embodiments, the motor gland 71 is sealingly abutted against the top side of the side plate 311 of the volute 31. The support plate 73 and the side plate 311 together form a part of the air duct required by the cross-flow fan 5. That is to say, the airflow generated by the cross-flow fan 5 will contact the surface of the support plate 73 facing the cross-flow fan 5. The motor gland assembly 7 not only serves as a mounting component for the motor 11, but also forms a part of the air duct together. In this way, the motor gland assembly 7 can occupy as little installation space as possible in the length direction of the chassis 3, making the structure of the indoor unit of the air conditioner more compact.

[0057] In some embodiments, please refer to Figure 2 , the chassis 3 is provided with a clamping hole 3c penetrating the chassis 3, please refer to Figure 11, the motor gland 71 includes a rib 74 that protrudes from the rear side of the water receiving plate 72 and extends obliquely upward. The rib 74 is snapped into the snap hole 3c. Since the rib 74 extends obliquely upward, after the rib 74 is snapped into the snap hole 3c, the rib 74 has a limiting effect on the motor gland assembly 7 in the front-rear and left-right directions. A connection hole 71c is provided on the front side of the motor gland 71, and a screw passes through the connection hole 71c and is screwed into the chassis 3.

[0058] During the assembly process, snap the rib 74 into the snap hole 3c, and then pass the screw through the connection hole 71c from top to bottom and screw it into the chassis 3. In this way, only one screw is needed to fixedly connect the motor gland assembly 7 and the chassis 3, and the assembly process is simple and the connection method is reliable. During the operation of the motor 11, when the chassis 3 and the electric control box 6 generate forced vibrations, the rib 74 can avoid or reduce the shear force borne by the screw and improve the stress condition of the screw.

[0059] In some embodiments, please refer to Figure 11 , the support plate 73 includes a vertical sub-plate 731 and a flange 732 that extends from the edge of the vertical sub-plate 731 toward the side away from the motor gland 71. The flange 732 and the vertical sub-plate 731 enclose an arc-shaped avoidance area 73a. Please refer to Figure 7 , the end of the cross-flow impeller 5 extends into the arc-shaped avoidance area 73a. That is to say, the shape of the support plate 73 is roughly adapted to the shaft end of the cross-flow impeller 5 to make the structure more compact.

[0060] Please refer to Figure 6 and Figure 7 , one end of the heat exchanger 4 close to the motor gland assembly 7 has a connecting plate 41, and the heat exchanger 4 is supported on the flange 732 through the connecting plate 41. Specifically, a lot of through holes are provided on the connecting plate 41, and the refrigerant circulation pipes of the heat exchanger 4 pass through each through hole circuitously, and the end heads 421 of the pipes are exposed on the side of the connecting plate 41 facing the electric control box 6.

[0061] It should be noted that the shape of the bottom end of the connecting plate 41 is adapted to the shape of the flange 732 and is sealed and abutted as much as possible to prevent condensate from leaking into the volute 31 from the contact area between the connecting plate 41 and the flange 732.

[0062] In some embodiments, please refer to Figure 9 and Figure 10 , a rib 7321 is formed on the outer surface of the flange 732 facing away from the cross-flow impeller 5, and the rib 7321 extends along the contour of the flange 732. The connecting plate 41 is located on the side of the rib 7321 facing the motor gland 71. On the one hand, the rib 7321 can form a labyrinth waterproof structure to prevent condensate from seeping into the volute 31 from the contact area between the connecting plate 41 and the flange 732; on the other hand, the rib 7321 also plays a role in stopping and positioning the connecting plate 41.

[0063] In some embodiments, refer to Figure 4 , the top end of the water receiving plate 72 is higher than the top end of the electric control box 6. Refer to Figures 9 to 11 , the top end of the water receiving plate 72 is bent towards the side of the electric control box 6 to form a boss structure 721. The boss structure 721 covers a part of the upper surface of the electric control box 6. Specifically, the boss structure 721 is located below the liquid inlet pipeline 81 and above the electric control box 6. On the one hand, the boss structure 721 can avoid the liquid inlet pipeline 81 and the gas collecting pipeline 82. On the other hand, the boss structure 721 makes full use of the top space of the electric control box 6, and increases the water receiving area as much as possible without additionally occupying the installation space of the chassis 3 in the length direction, which is convenient for better collecting condensed water and can also play a better protective role for the electric control box 6.

[0064] In some embodiments, refer to Figure 9 , the motor gland 71 is connected between the bottom end of the support plate 73 and the bottom end of the water receiving plate 72. The water receiving plate 72 has a stepped structure to form at least one stepped surface 72a. The height of the stepped surface 72a is lower than that of the boss structure 721. The stepped surface 72a is used to drain the condensed water collected by the water receiving plate 72 to the drain hole 71b located in front of the motor gland 71. At least a part of the condensed water collected by the motor gland assembly 7 enters the water receiving channel through the drain hole 71b at the front side. Specifically, the condensed water collected by the boss structure 721 flows along the surface of the water receiving plate 72 to the stepped surface 72a, and then flows along the stepped surface 72a to the drain hole 71b. The stepped surface 72a can shorten the flowing height of the condensed water flowing down from the boss structure 721 and guide the condensed water, and can avoid or reduce the noise generated by the dripping of condensed water.

[0065] The formation method of the stepped surface 72a is not limited. For example, a part of the structure of the water receiving plate 72 protrudes towards the side of the support plate 73 to form the stepped surface 72a. In this way, a recessed area is formed on the side of the water receiving plate 72 away from the support plate 73, and this recessed area can also avoid other installation structures.

[0066] It can be understood that the motor gland assembly 7 can be an integrally formed structure. For example, a plastic part formed by integral injection molding, or a sheet metal part, a casting part, etc.

[0067] It should be noted that a retaining edge 722 is provided at the edge of the water baffle 72, and the retaining edge 722 can prevent the condensed water from splashing out.

[0068] The specific structural form of the cross-flow impeller 5 is not limited, as long as it can blow air and is convenient to be connected to the motor 11. Exemplarily, in some embodiments, refer to Figure 8The crossflow impeller 5 includes an air supply section 51 and an axis end mounting section 52 which are connected to each other along the length direction, wherein the axis end mounting section 52 includes an annular housing 521 connected to the air supply section 51 and a radial partition plate 522 which is arranged in the annular housing 521 and close to one end of the air supply section 51, the motor 11 is arranged in the axis end mounting section 52, the radial partition plate 522 is provided with a driving hole 522a, and the power output shaft 111 is passed through the driving hole 522a to drive the crossflow impeller 5 to rotate. In this embodiment, the axis end mounting section 52 has a good waterproof and moisture-proof effect on the motor 11, preventing condensed water from dripping into the motor 11.

[0069] Specifically, the shaft end mounting section 52 extends into the above-mentioned arc-shaped avoidance area 73a, and the end face of the shaft end mounting section 52 and the vertical sub-plate 731 are spaced apart to avoid friction between the shaft end mounting section 52 and the vertical sub-plate 731. In addition, it is also convenient for the space inside the shaft end mounting section 52 to exchange airflow with the space inside the volute 31, so as to timely take away the heat generated by the motor 11, thereby achieving a better heat dissipation effect on the motor 11.

[0070] For example, the drive hole 522a is a non-circular hole, and the power output shaft 111 has a non-circular cross section, so that the drive cooperation between the power output shaft 111 and the drive hole 522a can be achieved. It is understandable that the power output shaft 111 and the crossflow impeller 5 can also be connected in other ways.

[0071] The specific structure of the motor 11 is not limited, as long as it can be installed in the volute 31 and can output sufficient torque.

[0072] In some embodiments, the motor 11 is an outer rotor motor, see Figures 12 to 14 The outer rotor motor includes a power output shaft 111, an outer rotor 112 and a stator 113. The power output shaft 111 is connected to the crossflow impeller 5. The mounting member 12 is connected to the stator 113 and is located on the side of the outer rotor motor away from the crossflow impeller 5. It should be noted that the outer rotor motor in the embodiment of the present application can realize the complete motor function by itself. In the embodiment of the present application, the outer rotor motor is a plastic-encapsulated motor, that is, the stator core, winding, etc. are integrally encapsulated using plastic encapsulation technology, which can eliminate the traditional motor stator insulation treatment process and the metal casing of the ordinary motor, and has the advantages of small size and low noise.

[0073] Users are sensitive to the noise of the air conditioner indoor unit, and the magnitude of the noise has become one of the performance indicators of the air conditioner indoor unit. In the embodiments of the present application, after replacing the original inner rotor motor 11 with a motor assembly 1 with an outer rotor motor, the noise can be significantly reduced, improving the user experience. In addition, when the same torque is output to the cross-flow impeller 5, the size of the outer rotor motor is significantly smaller than that of the inner rotor motor. Therefore, even if the outer rotor motor is arranged in the volute 31, the size of the volute 31 will not be increased additionally, ensuring the compact structure of the volute 31.

[0074] The specific structural form of the mounting member 12 is not limited. Exemplarily, please refer to Figure 13 and Figure 14 , the mounting member 12 includes a support column body 121 extending axially along the cross-flow impeller 5, and the motor 11 is arranged at one end of the support column body 121 close to the cross-flow impeller 5. On the top side of the side plate 311 on one side of the volute 31 in the length direction, a first mounting notch is provided. Exemplarily, the first mounting notch may be semicircular. Please refer to Figure 9 and Figure 11 , the bottom side of the motor gland 71 has a second mounting notch 71a. Exemplarily, the second mounting notch 71a may be semicircular. The second mounting notch 71a and the first mounting notch jointly enclose a mounting hole, and the support column body 121 is fixedly passed through the mounting hole.

[0075] The structural form of the support column body 121 has relatively high bending stiffness and structural strength, improving the reliability of the mounting member 12. Specifically, during the process of the motor driving the cross-flow impeller to rotate, periodic vibrations will be generated, and both the mounting member and the chassis will generate forced vibrations. It can be understood that if a thin plate structure is arranged at the circumferential edge of the motor and is mounted on the chassis through the thin plate structure, then when the motor vibrates and drives the thin plate structure to generate forced vibrations, the stiffness and structural strength of the thin plate structure are insufficient, and it is easy to generate vibration noise and even crack, with poor reliability.

[0076] In one embodiment, please refer to Figures 12 to 14, the mounting member 12 includes a vibration damping sleeve 122. The vibration damping sleeve 122 is sleeved on the support column 121 and is disposed within the mounting hole. The vibration damping sleeve 122 is sealingly clamped between the support column 121 and the corresponding wall surface of the mounting hole. Specifically, the upper half of the vibration damping sleeve 122 is in sealing contact with the motor gland 71, and the lower half of the vibration damping sleeve 122 is in sealing contact with the side plate 311 of the volute 31. The vibration damping sleeve 122 forms a vibration damping support for the motor assembly 1, that is, the support column 121 does not directly contact the side plate 311 of the volute 31. Specifically, when the outer rotor motor operates, the electromagnetic excitation force is transmitted to the support column 121. Due to the vibration isolation effect of the vibration damping sleeve 122, the support column 121 does not directly transmit the electromagnetic excitation force to the volute 31. The electromagnetic excitation force is largely absorbed by the vibration damping sleeve 122, greatly reducing the electromagnetic excitation force transmitted to the volute 31, and effectively suppressing the forced vibration of the volute 31 and the surrounding structures, and suppressing the noise radiated from the air conditioner indoor unit to the outside. Moreover, the vibration damping sleeve 122 can seal the mounting hole to prevent condensed water and moisture from entering the volute 31 through the mounting hole.

[0077] The material of the vibration damping sleeve 122 is not limited, as long as it can achieve a good damping and vibration reduction effect. Exemplarily, it includes but is not limited to rubber, silica gel, resin, fiber, etc.

[0078] In one embodiment, please refer to Figure 13 and Figure 14 , the vibration damping sleeve 122 is provided with an annular groove 122a surrounding the circumference of the vibration damping sleeve 122. Please refer to Figure 15 , a part of the side plate 311 of the volute 31 and the motor gland 71 are both embedded in the annular groove 122a. On the one hand, the structural form of the annular groove 122a can form a labyrinth waterproof structure, increasing the sealing reliability. On the other hand, it can also facilitate the assembly of the motor gland 71 and the side plate 311 of the volute 31 at the predetermined position of the vibration damping sleeve 122, realizing rapid assembly and positioning.

[0079] In one embodiment, please refer to Figures 12 to 14 , the mounting member 12 includes a retaining cover 123. A stop surface 121a is provided on the circumferential surface of the support column 121. The retaining cover 123 is connected to the end of the support column 121 away from the motor 11. Along the axial direction of the support column 121, the vibration damping sleeve 122 is clamped between the stop surface 121a and the retaining cover 123.

[0080] During assembly, first sleeve the vibration damping sleeve 122 on the support column 121, push the vibration damping sleeve 122 axially until the vibration damping sleeve 122 abuts against the stop surface 121a, and then connect the retaining cover 123 to the end of the support column 121, clamping the vibration damping sleeve 122 between the retaining cover 123 and the stop surface 121a to achieve axial positioning of the vibration damping sleeve 122 and prevent the vibration damping sleeve 122 from axially moving.

[0081] For the reliable connection between the retaining cover 123 and the support column 121, in one embodiment, please refer to Figure 13 , a through hole 123b is provided in the middle area of the retaining cover 123. The screw 1b passes through the through hole 123b from the outside of the retaining cover 123 and is screwed into the support column 121 from one axial end of the support column 121. It can be understood that the through hole 123b can be a counterbore, so as to avoid the screw 1b protruding from the surface of the retaining cover 123.

[0082] In one embodiment, please refer to Figure 14 , the retaining cover 123 includes a baffle 1232 and a frustum 1231 protruding from the baffle 1232 toward the vibration damping sleeve 122. The outer diameter of the end of the frustum 1231 close to the baffle 1232 is larger than the outer diameter of the end far from the baffle 1232. An accommodation groove 121c is provided at one end of the support column 121 facing the retaining cover 123, and the frustum 1231 extends into the accommodation groove 121c. The baffle 1232 is pressed against one axial end of the support column 121, and the frustum 1231 is inserted into the accommodation groove 121c. The frustum 1231 can bear the force in the direction perpendicular to the power output shaft 111, reducing or avoiding the shear force on the screw 1b, so that the screw 1b mainly bears the axial stress, improving the service life and reliability of the screw 1b.

[0083] In one embodiment, one end of the support column 121 close to the retaining cover 123 is a blind end, that is to say, the accommodation groove 121c is a blind groove, and the air flow in the volute 31 will not pass through the support column 121. On the one hand, it can avoid the axial force of the air flow on the retaining cover 123; on the other hand, the blind end of the support column 121 plays an axial sealing role for the outer rotor motor, preventing dust and moisture from entering the outer rotor motor along the axis of the mounting seat 12. The frustum 1231 is roughly located in the middle area of the retaining cover 123, and the above-mentioned through hole 123b penetrates the frustum 1231 and the baffle 1232. That is to say, the screw 1b is roughly located on the axis of the power output shaft 111. In this way, only one screw 1b is needed to meet the connection requirements.

[0084] It can be understood that when the structure of the air conditioner indoor unit itself is compact, the size of the motor assembly 1 is relatively small and the structure is compact. Therefore, the size of the retaining cover 123 can be made very small, as long as the baffle 1232 can abut against the end face of the vibration damping sleeve 122. And in order to meet the need of the connection structure strength, the outer diameter of the screw 1b needs to be relatively reasonable. Therefore, the connection between the retaining cover 123 and the support column 121 can be realized by a relatively thick screw 1b, which can not only ensure the connection strength but also take into account the structural compactness.

[0085] In one embodiment, the maximum outer diameter of the cone 1231 is greater than the inner diameter of the vibration-damping sleeve 122. Specifically, the maximum outer diameter of the cone 1231 is the outer diameter near the baffle 1232. The vibration-damping sleeves 122 produced in the same batch or different batches may have manufacturing errors. Regardless of whether the actual length of the vibration-damping sleeve 122 along the axial direction is greater than or less than the designed length, during the assembly process, the cone 1231 is wedged into the vibration-damping sleeve 122. As the screw 1b is continuously tightened, the cone 1231 is continuously wedged into the vibration-damping sleeve 122, and the vibration-damping sleeve 122 is forced to undergo elastic deformation, so that the vibration-damping sleeve 122 can always be clamped between the baffle 123 and the support column 121.

[0086] In one embodiment, please refer to Figures 12 to 14 The mounting member 12 includes an end plate 124 disposed on the side of the support column 121 facing the outer rotor motor, the support column 121 is connected to the end plate 124 and protrudes from the end surface of the end plate 124 away from the stator 113, and the support column 121 is fixedly connected to the stator 113 through the end plate 124. The end plate 124 can increase the contact area between the mounting member 12 and the stator 113 and improve the connection reliability between the mounting member 12 and the stator 113. For details, please refer to Figure 13 The stator 113 is provided with a screw hole 113a, and the screw passes through the end plate 124 from the side of the end plate 124 away from the stator 113 and is screwed into the screw hole 113a, so that the stator 113 and the end plate 124 can be fixedly connected.

[0087] In one embodiment, the end plate 124 and the support column 121 are integrally formed structures to improve the structural reliability of the junction between the end plate 124 and the support column 121, reduce the number of parts, and reduce assembly processes. Exemplarily, the end plate 124 and the support column 121 are integrally formed plastic parts to reduce the overall weight of the mounting base.

[0088] An embodiment of the present application also provides an air conditioner, comprising an air conditioner outdoor unit and an air conditioner indoor unit of any of the above embodiments, wherein the air conditioner outdoor unit and the air conditioner indoor unit are connected via a refrigerant pipe.

[0089] The various embodiments / implementations provided in this application can be combined with each other without causing any contradiction.

[0090] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An air conditioner indoor unit, characterized in that, Comprising: A chassis (3), the chassis (3) being configured with a volute (31), the volute (31) having an air inlet and an air outlet; A cross-flow impeller (5), the cross-flow impeller (5) being rotatably disposed within the volute (31); A motor assembly (1), the motor assembly (1) including a motor (11) and a mounting member (12) connected to each other, the motor (11) being disposed within the volute (31) and connected to an axial end of the cross-flow impeller (5); A heat exchanger (4), covering above the air inlet; A motor gland assembly (7), the motor gland assembly (7) fixing the mounting member (12) to the chassis (3) and being capable of receiving condensed water generated by the heat exchanger (4); An electric control box (6), the electric control box (6) being disposed on a side of the heat exchanger (4) close to the motor assembly (1), along the length direction of the chassis (3), a part of the motor gland assembly (7) being interposed between the electric control box (6) and the heat exchanger (4) in a blocking manner.

2. The air conditioner indoor unit according to claim 1, characterized in that, The indoor air conditioner includes a liquid inlet pipe (81) and a gas collecting pipe (82) connected to the heat exchanger (4), the chassis (3) being provided with an avoidance notch (3a), the liquid inlet pipe (81) and the gas collecting pipe (82) passing above the electric control box (6) and being wound around to the rear of the chassis (3) through the avoidance notch (3a).

3. The air conditioner indoor unit according to claim 2, characterized in that, The minimum distance between the outer end face of the chassis (3) in the length direction and the avoidance notch (3a) is less than the width of the avoidance notch (3a).

4. The air conditioner indoor unit according to claim 1, characterized in that, The motor gland assembly (7) includes a motor gland (71), a water receiving plate (72) located on a side of the motor gland (71) close to the electric control box (6), and a support plate (73) located on a side of the motor gland (71) facing away from the electric control box (6), an end of the heat exchanger (4) close to the electric control box (6) being supported on the support plate (73), the water receiving plate (72) being interposed between the heat exchanger (4) and the electric control box (6) in a blocking manner; the motor gland (71) pressing the mounting member (12) against a side plate (311) on one side of the volute (31) in the length direction.

5. The air conditioner indoor unit according to claim 4, characterized in that, The motor gland (71) is sealingly abutted against the top side of the side plate (311) of the volute (31), and the support plate (73) and the side plate (311) together constitute a part of the air duct required by the cross-flow impeller (5).

6. The air conditioner indoor unit according to claim 4, characterized in that, The top side of the side plate (311) of the volute (31) is provided with a first mounting notch, the bottom side of the motor gland (71) has a second mounting notch (71a), and the second mounting notch (71a) and the first mounting notch together enclose a mounting hole; the mounting member (12) includes a support column body (121) extending axially along the cross-flow impeller (5), the motor (11) being disposed at an end of the support column body (121) close to the cross-flow impeller (5), and the support column body (121) being fixedly inserted through the mounting hole.

7. The air conditioner indoor unit according to claim 4, characterized in that, The chassis (3) is provided with a water receiving channel, and the motor gland assembly (7) is provided with a drainage hole (71b), and condensed water received by the motor gland assembly (7) enters the water receiving channel through the drainage hole (71b).

8. The air conditioner indoor unit according to claim 7, characterized in that, The motor cover (71) is connected between the bottom end of the support plate (73) and the bottom end of the water receiving plate (72), and the water receiving plate (72) has at least one step surface (72a), and the step surface (72a) is used to drain the condensed water received by the water receiving plate (72) to the drainage hole (71b) located on the front side of the motor cover (71).

9. The air conditioner indoor unit according to claim 4, characterized in that, The top end of the water receiving plate (72) is bent toward one side of the electric control box (6) to form a boss structure (721), and the boss structure (721) covers a portion of the upper surface of the electric control box (6).

10. The air conditioner indoor unit according to claim 4, characterized in that, The chassis (3) is provided with a snap-in hole (3c), the motor gland assembly (7) comprises a snap-in rib (74) protruding from the rear side of the water receiving plate (72) and extending obliquely upward, the snap-in rib (74) is snapped into the snap-in hole (3c), and the front side of the motor gland (71) is provided with a connecting hole (71c), a screw passes through the connecting hole (71c) and is screwed into the chassis (3).

11. The air conditioner indoor unit according to claim 4, characterized in that, The support plate (73) comprises a vertical sub-plate (731) and a flange (732) extending from the edge of the vertical sub-plate (731) to a side away from the motor cover (71), the flange (732) and the vertical sub-plate (731) enclose an arc-shaped avoidance area (73a), and the end of the crossflow impeller (5) extends into the arc-shaped avoidance area (73a); the heat exchanger (4) has a connecting plate (41) at one end close to the motor cover assembly (7), and the heat exchanger (4) is supported on the flange (732) through the connecting plate (41).

12. The air conditioner indoor unit according to claim 11, characterized in that, A convex rib (7321) is formed on the outer surface of the flange (732) facing away from the crossflow impeller (5), and the connecting plate (41) is located on the side of the convex rib (7321) facing the water receiving plate (72).

13. The air conditioner indoor unit according to claim 1, characterized in that, The crossflow impeller (5) comprises an air supply section (51) and an axial end mounting section (52) which are interconnected along a length direction; the axial end mounting section (52) comprises an annular shell (521) connected to the air supply section (51) and a radial partition plate (522) arranged in the annular shell (521) and close to one end of the air supply section (51); the motor (11) is arranged in the axial end mounting section; the radial partition plate (522) is provided with a driving hole (522a); a power output shaft (111) of the motor (11) is inserted into the driving hole (522a) to drive the crossflow impeller (5) to rotate.

14. The air conditioner indoor unit according to any one of claims 1-13, characterized in that, The motor (11) is an outer rotor motor, comprising a power output shaft (111), an outer rotor (112) and a stator (113); the power output shaft (111) is connected to the crossflow impeller (5); and the mounting member (12) is fixedly connected to a side of the stator (113) facing away from the crossflow impeller (5).

15. An air conditioner, characterized in that, It includes an outdoor air conditioner and the indoor air conditioner according to any one of claims 1-14, and the outdoor air conditioner and the indoor air conditioner are connected by a refrigerant pipe.

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