CN214198905U - Machine and air conditioner in air conditioning - Google Patents

Abstract

The embodiment of the application provides an air-conditioning indoor unit and an air conditioner, wherein the air-conditioning indoor unit comprises a chassis, a cross-flow wind wheel, a motor assembly, an electric control box and a motor gland assembly, and the chassis is provided with a volute; the cross flow wind wheel is rotationally arranged in the volute; the motor assembly comprises a motor and an installation part which are connected with each other, and the motor is arranged in the volute and is connected with one axial end of the cross flow wind wheel; the motor gland assembly is used for fixing the mounting piece on the chassis and can contain condensed water generated by the heat exchanger; the electric control box is arranged on one side of the heat exchanger close to the motor assembly, and a part of the motor gland component is arranged between the electric control box and the heat exchanger in a blocking mode along the length direction of the chassis. The air-conditioning indoor unit of the embodiment of the application has the advantages that the motor is arranged in the volute, the motor cannot additionally occupy the installation space of the chassis along the length direction, the installation space of the motor in the prior art can be saved, the structure of the air-conditioning indoor unit is more compact under the condition that the air volume is not sacrificed, and the length of the whole air-conditioning indoor unit is obviously reduced.

Description

Machine and air conditioner in air conditioning

Technical Field

The application relates to the technical field of air conditioning, in particular to an air conditioner indoor unit and an air conditioner.

Background

Taking a wall-mounted air conditioner as an example, please refer to the drawing, an inner rotor motor is arranged outside a volute, a motor shaft of the inner rotor motor penetrates through the side wall of the volute and extends into an air duct to be connected with a cross flow wind wheel in a driving manner, an electric control box is arranged at one end, far away from the volute, of the inner rotor motor, namely, the volute, the inner rotor motor and the electric control box are sequentially arranged 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, and the overall length of the wall-mounted air conditioner in the prior art is longer.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present application are directed to an air conditioner indoor unit and an air conditioner with a compact structure and a relatively small overall length.

In order to achieve the above purpose, an embodiment of the present application provides an air conditioner indoor unit, including a chassis, a cross flow wind wheel, a motor assembly, an electric control box, and a motor gland assembly, where the chassis is configured with a volute; the cross-flow wind wheel is rotationally arranged in the volute; the motor assembly comprises a motor and a mounting piece which are connected with each other, and the motor is arranged in the volute and is connected with one axial end of the cross flow wind wheel; the motor gland assembly fixes the mounting piece on the chassis and can contain condensed water generated by the heat exchanger; the electric control box is arranged on one side, close to the motor assembly, of the heat exchanger, and a part of the motor gland assembly is arranged between the electric control box and the heat exchanger in a blocking mode along the length direction of the chassis.

In some embodiments, the indoor unit of the air conditioner comprises a liquid inlet pipeline and a gas collecting pipeline which are connected with the heat exchanger, an avoidance notch is arranged on the chassis, and the liquid inlet pipeline and the gas collecting pipeline are wound to the rear of the chassis from the upper part of the electric control box through the avoidance notch.

In some embodiments, a minimum distance between an outer end surface of the chassis in the length direction and the avoidance gap is smaller than a width of the avoidance gap.

In some embodiments, the motor gland assembly comprises a motor gland, a water receiving plate located on one side of the motor gland close to the electric control box, and a support plate located on one side of the motor gland 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 is arranged between the heat exchanger and the electric control box in a blocking manner; the motor gland presses the mounting member against a side plate on one side of the scroll casing in the length direction.

In some embodiments, the motor gland is tightly abutted against the top side of the side plate of the volute, and the support plate and the side plate jointly form a part of an air duct required by the cross-flow wind wheel.

In some embodiments, a top side of the side plate of the volute is provided with a first mounting notch, a bottom side of the motor gland is provided with a second mounting notch, and the second mounting notch and the first mounting notch jointly enclose a mounting hole; the mounting part comprises a support column body extending along the axial direction of the cross-flow wind wheel, the motor is arranged at one end, close to the cross-flow wind wheel, of the support column body, and the support column body is fixedly arranged in the mounting hole in a penetrating mode.

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

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, and the water receiving plate is provided with at least one step surface for guiding the condensed water contained in the water receiving plate to a drainage hole positioned at the front side of the motor gland.

In some embodiments, the top end of the water receiving plate is bent towards one side of the electric control box to form a boss structure, and the boss structure covers a part of the upper surface of the electric control box.

In some embodiments, the chassis is provided with a clamping hole, the motor gland assembly comprises a clamping rib protruding out of the rear side of the water receiving plate and extending obliquely upwards, the clamping rib is clamped in the clamping hole, the front side of the motor gland is provided with a connecting hole, and a screw penetrates through the connecting hole and is screwed into the chassis.

In some embodiments, the supporting plate comprises a vertical sub-plate and a flange extending from the edge of the vertical sub-plate to the side away from the motor gland, an arc-shaped avoiding area is defined by the flange and the vertical sub-plate, and the end part of the cross-flow wind wheel extends into the arc-shaped avoiding area; one end of the heat exchanger, which is close to the motor gland assembly, is provided with a connecting plate, and the heat exchanger is supported on the flange through the connecting plate.

In some embodiments, the outer surface of the flange facing away from the cross-flow wind wheel is formed with a rib, and the connecting plate is located on one side of the rib facing the water receiving plate.

In some embodiments, the cross-flow wind wheel comprises an air supply section and an axle end installation section which are connected with each other along the length direction, the axle end installation section comprises an annular shell connected with the air supply section and a radial spacing plate which is arranged in the annular shell and close to one end of the air supply section, the motor is arranged in the axle end installation section, the radial spacing plate is provided with a driving hole, and the power output shaft is arranged in the driving hole in a penetrating way to drive the cross-flow wind wheel to rotate.

In some embodiments, the motor is an external rotor motor, the external rotor motor includes a power output shaft, an external rotor and a stator, the power output shaft is connected with the cross-flow wind wheel, and the mounting member is fixedly connected with one side of the stator, which is far away from the cross-flow wind wheel.

The embodiment of the application also provides an air conditioner, which comprises an air conditioner outdoor unit and any one of the air conditioner indoor units, wherein the air conditioner outdoor unit is connected with the air conditioner indoor unit through a refrigerant pipe.

The air-conditioning indoor unit of the embodiment of the application, because the motor sets up in the spiral case, therefore, along the length direction on chassis, no longer interval motor between heat exchanger and the automatically controlled box, the motor can not additionally occupy the chassis along length direction's installation space, can save the motor installation space among the prior art, under the condition that uses the same size cross-flow wind wheel, promptly under the condition that does not sacrifice the amount of wind, the structure of the air-conditioning indoor unit of the embodiment of the application is compacter, complete machine length is showing and is reducing, not only can show ground reduction in production cost, also can reduce the packing size, reduce the transportation, stock parking space, can also save installation space for the user, promote user experience, promote product competitiveness.

Drawings

Fig. 1 is a schematic partial structural view of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of the chassis and motor assembly of FIG. 1 in mating relationship;

FIG. 3 is a schematic view of the structure of FIG. 1 in combination with a heat exchanger;

FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective;

FIG. 5 is a schematic view of the structure shown in FIG. 4 with a portion of the chassis omitted;

FIG. 6 is a schematic diagram of the connection plate of the heat exchanger in FIG. 5, the motor assembly and the electronic control box;

FIG. 7 is a view of the structure of FIG. 6 in combination with a cross-flow wind wheel;

FIG. 8 is a schematic structural view of a cross-flow wind wheel according to an embodiment of the present application;

fig. 9 is a schematic structural view of a motor gland assembly according to an embodiment of the present application, in which dotted lines and arrows indicate a flow direction of condensed water;

FIG. 10 is a schematic view of the structure of FIG. 9 from another perspective;

FIG. 11 is a schematic view of a further perspective of the structure shown in FIG. 9;

FIG. 12 is a schematic view of a motor assembly according to an embodiment of the present application;

FIG. 13 is an exploded view of the structure shown in FIG. 12;

FIG. 14 is a schematic view of the structure of FIG. 13 from another perspective;

fig. 15 is a schematic view of the motor gland assembly of fig. 11 in cooperation with the motor assembly of fig. 12.

Description of the reference numerals

A motor assembly 1; a motor 11; a power take-off shaft 111; an outer rotor 112; a stator 113; screw holes 113 a; a mounting member 12; a support column 121; the stop surface 121 a; accommodating grooves 121 c; a damping sleeve 122; the ring grooves 122 a; a stopper cover 123; a through hole 123 b; a frustum 1231; a baffle 1232; an end disk 124; a chassis 3; a volute casing 31; a side panel 311; avoiding the notch 3 a; a snap-in hole 3 c; a heat exchanger 4; a connecting plate 41; a tip 421; a cross flow wind wheel 5; an air supply section 51; a shaft end mounting section 52; an annular housing 521; a radial spacer plate 522; the drive aperture 522 a; an electric control box 6; a motor gland assembly 7; a motor cover 71; the second mounting notches 71 a; a drain hole 71 b; the connection hole 71 c; a water receiving plate 72; a boss structure 721; a flange 722; a step surface 72 a; a support plate 73; a vertical daughter board 731; a flange 732; an arc avoidance zone 73 a; a rib 7321; a clamp rib 74; a liquid inlet line 81; gas collecting line 82

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the embodiments of the present application, the "up", "down", "left", "right", "front", "back", "top", "bottom", "lengthwise", "axial" orientations or positional relationships are based on the orientations or positional relationships shown in fig. 2. Where "front" refers to a direction out of the plane of the vertical page in fig. 2 and "rear" refers to a direction into the plane of the vertical page in fig. 2. It is to be understood that such directional terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application.

In the embodiment 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 wind wheel 5 are all the same, and all the directions are the left and right directions along fig. 2.

An embodiment of the present application provides an air-conditioning indoor unit, please refer to fig. 1 to 5, and the air-conditioning indoor unit includes a chassis 3, a heat exchanger 4, an electric control box 6, a cross-flow wind wheel 5, a motor assembly 1, and a motor gland assembly 7.

Referring to fig. 2, the chassis 3 is provided with a volute 31, the volute 31 has an air inlet and an air outlet, both the volute 31 and the cross-flow wind wheel 5 extend along the length direction of the chassis 3, and the cross-flow wind wheel 5 is rotatably disposed 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 wind wheel 5 and then is discharged out of the volute 31 through the air outlet.

The heat exchanger 4 is used as a heat exchange medium of the heat pump system, when the air conditioning indoor unit needs to refrigerate, the heat exchanger 4 is an evaporator of the heat pump system, and when the air conditioning indoor unit needs to heat, the heat exchanger 4 is a condenser of the heat pump system. The electrical control box 6 is used for accommodating electronic components of the air conditioner indoor unit, such as a main control panel, a power supply, a control circuit, a wiring board and the like.

The motor assembly 1 comprises a motor 11 and a mounting part 12 which are connected with each other, and the motor 11 is arranged in the volute 31 and is connected with one axial end of the cross flow wind wheel 5; the motor gland assembly 7 is used for fixing the mounting piece 12 on the chassis 3 and can contain condensed water generated by the heat exchanger 4. It can be understood that the motor gland assembly 7 mainly receives the condensed water generated at the end of the heat exchanger 4. The electronic control box 6 is disposed on a side of the heat exchanger 4 close to the motor assembly 1, that is, the electronic control box 6 and the motor assembly 1 are disposed on a same side of the chassis 3 along the length direction, for example, both disposed 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 between the electric control box 6 and the heat exchanger 4 in a blocking mode.

The fact that a part of the motor gland assembly 7 is arranged between the electric control box 6 and the heat exchanger 4 in a blocking mode means that the motor gland assembly 7 is air-tight and water-tight, and condensed water cannot penetrate through the motor gland assembly 7 and splash onto the electric control box 6.

The air-conditioning indoor unit of the embodiment of the application, because the motor 11 is arranged in the volute casing 31, therefore, along the length direction of the chassis 3, no motor is arranged between the heat exchanger 4 and the electric control box 6 any longer, the motor can not additionally occupy the installation space of the chassis 3 along the length direction, the motor installation space in the prior art can be saved, under the condition of using the same-size cross-flow wind wheel 5, namely under the condition of not sacrificing the air volume, the structure of the air-conditioning indoor unit of the embodiment of the application is more compact, the length of the whole machine is obviously reduced, not only can the production cost be obviously reduced, but also the packaging size can be reduced, the transportation and storage space are reduced, the installation space can be saved for users, the user experience is improved, and the product competitiveness is improved.

In addition, in the rotation process of the cross-flow wind wheel 5, part of the airflow flows through the surface of the motor 11, and the heat generated by the motor 11 is taken out of the volute 31 by the airflow, so that the motor 11 is well radiated, heat radiation holes do not need to be formed in the chassis 3 independently, and the structural strength of the chassis 3 is improved. It should be noted that, the wall-mounted air conditioner indoor unit is mounted on a wall body by means of a chassis, and therefore, the chassis is required to have higher structural strength as a stressed structural member. In the prior art, in order to dissipate heat of the motor, the heat dissipation holes are formed in the chassis, so that stress concentration at the opening is easily caused, and the structural strength of the chassis is reduced.

In the embodiment of the application, the motor gland component 7 not only plays a role in installing the motor assembly 1, but also plays a role in containing condensed water and playing a waterproof and moistureproof protection role for the electric control box 6.

Referring to fig. 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, wherein 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 flows into the gas collecting pipe 82.

In one embodiment, referring to fig. 2 to 4, an avoiding gap 3a is formed on the chassis 3, and the liquid inlet pipeline 81 and the air collecting pipeline 82 are wound around the chassis 3 from above the electronic control box 6 through the avoiding gap 3 a. That is, at least a part of the electronic control box 6 is located below the liquid inlet line 81 and the gas collecting line 82, and the space below the liquid inlet line 81 and the gas collecting line 82 can be fully utilized.

In one embodiment, referring to fig. 2, a minimum distance L2 between an end surface of the chassis 3 in the length direction and the avoidance gap 3a is smaller than a width L1 of the avoidance gap 3 a. Since the electronic control box 6 can occupy the installation space of the chassis 3 within the width range of the avoidance gap 3a, the size of the L2 can be significantly reduced.

The specific structural form of the motor gland assembly 7 is not limited, for example, in some embodiments, please refer to fig. 9 to 11, the motor gland assembly 7 includes a motor gland 71, a water receiving plate 72 located on one side of the motor gland 71 close to the electric control box 6, and a supporting plate 73 located on one side of the motor gland 71 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 supporting plate 73, that is, the supporting plate 73 plays a role of supporting the heat exchanger 4; the water receiving plate 72 is arranged between the heat exchanger 4 and the electric control box 6 in a blocking mode. The water receiving plate 72 plays a good role in preventing water and moisture for the electric control box 6. The motor cover 71 presses the mounting member 12 against the side plate 311 on one side of the scroll casing 31 in the length direction. The motor 11 is supported on the side plate 311 of the volute casing 31 through the mounting member 12, that is, the motor 11 is suspended in the volute casing 31, that is, the motor 11 is in a cantilever-supported stressed state.

In some embodiments, the chassis 3 is provided with a water receiving channel, the motor gland assembly 7 is provided with a water discharging hole 71b, and the condensed water received by the motor gland assembly 7 enters the water receiving channel through the water discharging hole 71 b. The drain holes 71b can intensively drain the condensed water contained in the motor gland assembly 7 to the water receiving channel on the chassis 3, so that the condensed water can be conveniently and intensively drained from the chassis 3.

The number of the drainage holes 71b is not limited, as long as the condensed water contained in the motor gland assembly 7 can be drained to the water receiving channel in time. Exemplarily, in the present embodiment, the motor cover 71 is provided with at least one drainage hole 71b at each of front and rear sides thereof.

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

It should be noted that the water receiving channel on the chassis 3 is also used for receiving the condensed water generated by the heat exchanger 4. For example, the water receiving channel may be disposed around the volute casing 31, so that the condensed water generated at various positions of the heat exchanger 4 can flow downstream into the water receiving channel.

In some embodiments, the motor gland 71 is in sealing contact with the top side of the side plate 311 of the volute casing 31, the support plate 73 and the side plate 311 together form a part of an air duct required by the cross-flow wind wheel 5, that is, the airflow generated by the cross-flow wind wheel 5 is in contact with the surface of the support plate 73 facing one side of the cross-flow wind wheel 5, and the motor gland assembly 7 not only serves as a mounting part of the motor 11, but also jointly forms a part of the air duct, so that the motor gland assembly 7 can occupy the mounting space of the chassis 3 along the length direction as little as possible, and the structure of the air conditioning indoor unit is more compact.

In some embodiments, referring to fig. 2, the chassis 3 is provided with a clamping hole 3c penetrating through the chassis 3, referring to fig. 11, the motor cover 71 includes a clamping rib 74 protruding from the rear side of the water receiving plate 72 and extending obliquely upward, and the clamping rib 74 is clamped in the clamping hole 3 c. Because the clamping rib 74 extends upwards in an inclined manner, after the clamping rib 74 is clamped in the clamping hole 3c, the clamping rib 74 has a limiting effect on the motor gland component 7 along the front-back and left-right directions. The motor cover 71 is provided at a front side thereof with a coupling hole 71c through which a screw passes and is screwed into the chassis 3.

In the assembling process, the clamping ribs 74 are clamped into the clamping holes 3c, and then the screws penetrate through the connecting holes 71c from top to bottom and are screwed into the chassis 3, so that the motor gland component 7 and the chassis 3 can be fixedly connected only by screwing one screw, the assembling process is simple, and the connecting mode is reliable. In the working process of the motor 11, when the chassis 3 and the electric control box 6 generate forced vibration, the clamping ribs 74 can prevent or reduce the shearing force borne by the screw, and improve the stress condition of the screw.

In some embodiments, referring to fig. 11, the supporting plate 73 includes a vertical sub-plate 731 and a flange 732 extending from an edge of the vertical sub-plate 731 to a side away from the motor gland 71, the flange 732 and the vertical sub-plate 731 enclose an arc-shaped avoiding region 73a, and referring to fig. 7, an end of the cross-flow wind wheel 5 extends into the arc-shaped avoiding region 73 a. That is, the support plate 73 is shaped to substantially fit the shaft end of the cross-flow wind wheel 5, so that the structure is more compact.

Referring to fig. 6 and 7, the heat exchanger 4 has a connecting plate 41 at an end thereof adjacent to the motor gland assembly 7, and the heat exchanger 4 is supported on the flange 732 by the connecting plate 41. Specifically, the connecting plate 41 is provided with a plurality of through holes, the pipeline of the heat exchanger 4 for circulating the refrigerant passes through each through hole in a winding way, and the end 421 of the pipeline is exposed on the side of the connecting plate 41 facing the electronic control box 6.

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 the bottom end of the connecting plate 41 is in sealing contact with the flange 732 as much as possible, so that the leakage of the condensate from the contact between the connecting plate 41 and the flange 732 into the scroll casing 31 is prevented as much as possible.

In some embodiments, referring to fig. 9 and 10, the outer surface of flange 732 facing away from cross-flow rotor 5 is formed with ribs 7321, and ribs 7321 extend along the contour of flange 732. The connecting plate 41 is located on the side of the rib 7321 facing the motor cover 71. On one hand, the ribs 7321 can form a labyrinth-type waterproof structure to prevent the condensed water from infiltrating into the volute 31 from the contact portion between the connection plate 41 and the flange 732; on the other hand, the rib 7321 also serves as a stopper for positioning the connection plate 41.

In some embodiments, referring to fig. 4, the top end of the water receiving plate 72 is higher than the top end of the electric control box 6, referring to fig. 9 to 11, the top end of the water receiving plate 72 is bent toward one side of the electric control box 6 to form a protruding structure 721, the protruding structure 721 covers a portion of the upper surface of the electric control box 6, and specifically, the protruding structure 721 is located below the liquid inlet pipeline 81 and above the electric control box 6. On the one hand, liquid inlet pipe 81 and gas collecting pipe 82 can be dodged to boss structure 721, and on the other hand, boss structure 721 make full use of automatically controlled box 6's headspace does not additionally occupy chassis 3 and increases the water receiving area as far as possible under the installation space's of length direction the condition, is convenient for connect the comdenstion water better greatly, also can play better guard action to automatically controlled box 6.

In some embodiments, referring to fig. 9, the motor pressing cover 71 is connected between the bottom end of the supporting plate 73 and the bottom end of the water receiving plate 72, the water receiving plate 72 is in a step structure to form at least one step surface 72a, the step surface 72a is lower than the boss structure 721, the step surface 72a is used for guiding the condensed water received by the water receiving plate 72 to the water discharging hole 71b located on the front side of the motor pressing cover 71, and at least a part of the condensed water received by the motor pressing cover assembly 7 enters the water receiving channel through the water discharging hole 71b on the front side. Specifically, the condensed water received by the convex structure 721 flows to the step surface 72a along the surface of the water receiving plate 72, and then flows to the water discharging hole 71b along the step surface 72 a. The step surface 72a can shorten the flowing height of the condensed water flowing down from the boss structure 721, and can guide the condensed water, thereby preventing or reducing the noise caused by the dripping of the condensed water.

The step surface 72a is formed in an unlimited manner, for example, a part of the structure of the water receiving plate 72 protrudes toward one side of the support plate 73 to form the step surface 72a, so that a recessed area is formed on one side of the water receiving plate 72 away from the support plate 73, and the recessed area can also avoid other mounting structures.

It will be appreciated that the motor gland assembly 7 may be of unitary construction, for example, a unitary injection moulded plastics piece, or alternatively, a sheet metal piece, a cast piece or the like.

It should be noted that the edge of the water baffle 72 is provided with a rib 722, and the rib 722 can prevent the condensed water from splashing out.

The specific structural form of the cross-flow wind wheel 5 is not limited as long as the air can be supplied and is convenient to be connected with the motor 11. In some exemplary embodiments, referring to fig. 8, the cross-flow wind wheel 5 includes an air supply section 51 and an axial end installation section 52 connected to each other along a length direction, where the axial end installation section 52 includes an annular casing 521 connected to the air supply section 51 and a radial partition plate 522 disposed in the annular casing 521 and near one end of the air supply section 51, the motor 11 is disposed in the axial end installation section 52, the radial partition plate 522 is provided with a driving hole 522a, and the power output shaft 111 is disposed through the driving hole 522a to drive the cross-flow wind wheel 5 to rotate. In this embodiment, the shaft end mounting section 52 has a good waterproof and moistureproof effect on the motor 11, so as to prevent condensed water from dropping into the motor 11.

Specifically, the shaft end mounting section 52 extends into the arc avoiding area 73a, and the end surface of the shaft end mounting section 52 and the vertical sub-plate 731 are arranged at intervals, so that friction between the shaft end mounting section 52 and the vertical sub-plate 731 is avoided, and in addition, air flow exchange is performed between the space in the shaft end mounting section 52 and the space in the volute casing 31, heat generated by the motor 11 is taken away in time, and a good heat dissipation effect is achieved on the motor 11.

Illustratively, the driving hole 522a is a non-circular hole, and the power take-off shaft 111 has a non-circular cross-section, such that the driving engagement of the power take-off shaft 111 and the driving hole 522a is achieved. It is understood that the power take-off shaft 111 and the cross-flow wind wheel 5 may be connected in other ways.

The specific structure of the motor 11 is not limited as long as it can be installed in the scroll casing 31 and can output a sufficient torque.

In some embodiments, the motor 11 is an outer rotor motor, please refer to fig. 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 with the cross flow wind wheel 5, and the mounting member 12 is connected with the stator 113 and located on a side of the outer rotor motor facing away from the cross flow wind wheel 5. It should be noted that the outer rotor motor in the embodiment of the present application can implement a complete motor function by itself. In the embodiment of the application, the outer rotor motor is a plastic package motor, namely, the stator core, the winding and the like are integrally packaged by adopting a plastic packaging technology, so that the traditional motor stator insulation treatment process and the metal shell of a common motor can be eliminated, and the plastic package motor has the advantages of small volume, low noise and the like.

The user is sensitive to the noise of the air-conditioning indoor unit, and the noise becomes one of the performance indexes of the air-conditioning indoor unit. In the embodiment of the application, after the original inner rotor motor 11 is replaced by the motor assembly 1 with the outer rotor motor, the noise can be obviously reduced, and the user experience is improved. In addition, under the condition of outputting the same torque to the cross flow wind wheel 5, the size of the outer rotor motor is obviously smaller than that of the inner rotor motor, so that even if the outer rotor motor is arranged in the volute 31, the size of the volute 31 cannot be additionally increased, and the compact structure of the volute 31 is guaranteed.

The specific structure form of the mounting part 12 is not limited, for example, referring to fig. 13 and 14, the mounting part 12 includes a support column 121 extending along the axial direction of the cross-flow wind wheel 5, and the motor 11 is disposed at one end of the support column 121 close to the cross-flow wind wheel 5. The top side of the side plate 311 of the scroll case 31 along one side in the length direction is provided with a first mounting notch, which may be, for example, a semicircle. Referring to fig. 9 and 11, the motor cover 71 has a second mounting notch 71a at a bottom side thereof, and the second mounting notch 71a may be, for example, a semicircular shape. The second installation notch 71a and the first installation notch together enclose an installation hole, and the support column 121 is fixedly arranged in the installation hole in a penetrating manner.

The structural form of the support column 121 has high bending rigidity and structural strength, and the reliability of the mounting member 12 is improved. Specifically, the motor can produce periodic vibration in the process of driving the tubular wind wheel to rotate, and both the mounting part and the chassis can produce forced vibration. It can be understood that if set up the sheet metal structure at the circumference edge of motor and install on the chassis through the sheet metal structure, then, when motor vibration and when driving sheet metal structure forced vibration, the rigidity and the structural strength of sheet metal structure are not enough, produce vibration noise easily, can split even, and the reliability is poor.

In an embodiment, referring to fig. 12 to 14, the mounting member 12 includes a damping sleeve 122, the damping sleeve 122 is sleeved on the supporting cylinder 121 and disposed in the mounting hole, and the damping sleeve 122 is sealingly clamped between the supporting cylinder 121 and a wall surface corresponding to the mounting hole. Specifically, the upper half of the damping sleeve 122 is in sealing contact with the motor gland 71, and the lower half of the damping sleeve 122 is in sealing contact with the side plate 311 of the scroll casing 31. The damping sleeve 122 forms a damping support for the motor assembly 1, that is, the support cylinder 121 does not directly contact with the side plate 311 of the volute 31. Specifically, when the outer rotor motor works, the electromagnetic excitation force is transmitted to the support column 121, and 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 casing 31, and the electromagnetic excitation force is absorbed by the vibration damping sleeve 122 to a great extent, so that the electromagnetic excitation force transmitted to the volute casing 31 is greatly reduced, forced vibration of the volute casing 31 and peripheral structures can be effectively inhibited, and outward radiation noise of the indoor unit of the air conditioner is inhibited. Furthermore, the damping sleeve 122 can seal the mounting hole, and prevent condensed water and moisture from entering the volute casing 31 through the mounting hole.

The material of the damping sleeve 122 is not limited as long as it can achieve a good damping effect, and exemplarily includes but is not limited to rubber, silica gel, resin, fiber, and the like.

In one embodiment, referring to fig. 13 and 14, the damping sleeve 122 is provided with a circumferential groove 122a surrounding the damping sleeve 122. Referring to fig. 15, the side plate 311 of the volute casing 31 and a portion of the motor cover 71 are embedded in the ring groove 122 a. On one hand, the structural form of the ring groove 122a can form a labyrinth-type waterproof structure, so that the sealing reliability is improved, and on the other hand, the motor gland 71 and the side plate 311 of the volute 31 can be conveniently assembled at a preset position of the damping sleeve 122, so that the rapid assembly and positioning are realized.

In an embodiment, referring to fig. 12 to 14, the mounting member 12 includes a stop cover 123, a circumferential surface of the support cylinder 121 is provided with a stop surface 121a, the stop cover 123 is connected to an end of the support cylinder 121 away from the motor 11, and the damping sleeve 122 is sandwiched between the stop surface 121a and the stop cover 123 along an axial direction of the support cylinder 121.

During assembly, the damping sleeve 122 is firstly sleeved on the support column 121, the damping sleeve 122 is pushed axially until the damping sleeve 122 abuts against the stop surface 121a, the blocking cover 123 is connected to the end of the support column 121, and the damping sleeve 122 is clamped between the blocking cover 123 and the stop surface 121a, so that the damping sleeve 122 is axially positioned, and the damping sleeve 122 is prevented from axially moving.

In order to facilitate the reliable connection between the blocking cap 123 and the supporting cylinder 121, in an embodiment, referring to fig. 13, a through hole 123b is formed in a middle region of the blocking cap 123, and a screw 1b passes through the through hole 123b from an outer side of the blocking cap 123 and is screwed into the supporting cylinder 121 from one axial end of the supporting cylinder 121. It is understood that the through hole 123b may be a counter bore, so as to prevent the screw 1b from protruding from the surface of the blocking cover 123.

In one embodiment, referring to fig. 14, the blocking cover 123 includes a blocking plate 1232 and a frustum 1231 protruding from the blocking plate 1232 toward the damping sleeve 122, and an outer diameter of an end of the frustum 1231 near the blocking plate 1232 is larger than an outer diameter of an end far from the blocking plate 1232. One end of the support column 121 facing the blocking cover 123 is provided with a receiving groove 121c, and the frustum 1231 extends into the receiving groove 121 c. Baffle 1232 presses in support cylinder 121 axial one end, and frustum 1231 inserts in the holding groove 121c, and frustum 1231 can bear the effort along the perpendicular to power output shaft 111 direction, reduces or avoids screw 1b to bear the shearing force for screw 1b mainly bears the axle stress, promotes screw 1 b's life and reliability.

In one embodiment, an end of the support cylinder 121 near the cover 123 is a blind end, that is, the receiving groove 121c is a blind groove, and the air flow in the volute 31 does not pass through the support cylinder 121. On one hand, the axial force of the airflow on the blocking cover 123 can be avoided; on the other hand, the blind end of the support column 121 serves as a shaft end seal for the outer rotor motor, preventing dust and moisture from entering the outer rotor motor along the axial direction of the mounting seat 12. The frustum 1231 is located substantially in the middle region of the blocking cover 123, and the through hole 123b penetrates the frustum 1231 and the blocking plate 1232. That is, the screw 1b is located substantially on the axis of the power take-off shaft 111, so that only one screw 1b is required to meet the connection requirement.

It can be understood that, in the case of the air conditioning indoor unit itself being compact, the size of the motor assembly 1 is relatively small, and the structure is compact, so that the size of the blocking cover 123 can be made small as long as the blocking plate 1232 can abut against the end surface of the damping sleeve 122. In order to meet the requirement of the strength of the connecting structure, the outer diameter of the screw 1b needs to have a relatively reasonable outer diameter, so that the connection between the blocking cover 123 and the supporting column 121 can be realized through a relatively thick screw 1b, the connecting strength can be guaranteed, and the structure is compact.

In one embodiment, the maximum outer diameter of the frustum 1231 is greater than the inner diameter of the damping sleeve 122. Specifically, the maximum outer diameter of the frustum 1231 is the outer diameter near the baffle 1232. The damping sleeve 122 of the same batch or different batches of mass production can have manufacturing errors, and no matter the actual length of the damping sleeve 122 along the axial direction is greater than or less than the designed length, in the assembling process, the frustum 1231 is wedged into the damping sleeve 122, and as the screw 1b is continuously screwed, the frustum 1231 is continuously wedged into the damping sleeve 122 and forces the damping sleeve 122 to elastically deform, so that the damping sleeve 122 can be clamped between the blocking cover 123 and the support column 121 all the time.

In one embodiment, referring to fig. 12 to 14, the mounting member 12 includes an end plate 124 disposed on a side of the supporting cylinder 121 facing the outer rotor motor, the supporting cylinder 121 is connected to the end plate 124 and protrudes from an end surface of the end plate 124 facing away from the stator 113, and the supporting cylinder 121 is fixedly connected to the stator 113 through the end plate 124. The end disc 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. Specifically, referring to fig. 13, a screw hole 113a is formed in the stator 113, and a screw passes through the end plate 124 from a 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.

In an embodiment, the end disc 124 and the support column 121 are integrally formed, so as to improve the structural reliability of the junction between the end disc 124 and the support column 121, reduce the number of parts, and reduce the number of assembly processes. Illustratively, the end disc 124 and the support column 121 are integrally formed as a plastic member to reduce the overall weight of the mounting base.

The embodiment of the application also provides an air conditioner, which comprises an air conditioner outdoor unit and the air conditioner indoor unit of any one of the embodiments, wherein the air conditioner outdoor unit is connected with the air conditioner indoor unit through a refrigerant pipe.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

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

Claims (15)

1. An indoor unit of an air conditioner, comprising:

a chassis (3), the chassis (3) being configured with a volute (31);

the cross-flow wind wheel (5), the cross-flow wind wheel (5) is rotationally arranged in the volute (31);

the cross flow wind wheel assembly comprises a motor assembly (1), wherein the motor assembly (1) comprises a motor (11) and a mounting piece (12) which are connected with each other, and the motor (11) is arranged in a volute (31) and is connected with one axial end of the cross flow wind wheel (5);

the motor gland component (7) fixes the mounting piece (12) on the chassis (3) and can contain condensed water generated by the heat exchanger (4);

the electric control box (6) is arranged on one side, close to the motor assembly (1), of the heat exchanger (4), and along the length direction of the chassis (3), one part of the motor gland component (7) is arranged between the electric control box (6) and the heat exchanger (4) in a blocking mode.

2. The indoor unit of air conditioner as claimed in claim 1, wherein the indoor unit of air conditioner comprises a liquid inlet pipeline (81) and a gas collecting pipeline (82) connected with the heat exchanger (4), an avoiding gap (3a) is arranged on the chassis (3), and the liquid inlet pipeline (81) and the gas collecting pipeline (82) are wound to the rear of the chassis (3) from the upper part of the electric control box (6) through the avoiding gap (3 a).

3. The indoor unit of air conditioner according to claim 2, wherein the minimum distance between the outer end surface of the chassis (3) in the length direction and the avoidance gap (3a) is smaller than the width of the avoidance gap (3 a).

4. The indoor unit of air conditioner as claimed in claim 1, wherein the motor gland assembly (7) comprises a motor gland (71), a water receiving plate (72) arranged at one side of the motor gland (71) close to the electric control box (6), and a support plate (73) arranged at one side of the motor gland (71) far 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), and the water receiving plate (72) is arranged between the heat exchanger (4) and the electric control box (6) in a blocking way; the motor gland (71) presses the mounting member (12) against a side plate (311) on one side of the scroll casing (31) in the longitudinal direction.

5. The indoor unit of air conditioner as claimed in claim 4, wherein the motor cover (71) is sealingly abutted against the top side of the side plate (311) of the scroll casing (31), and the support plate (73) and the side plate (311) together constitute a part of the duct required for the cross-flow wind wheel (5).

6. The indoor unit of claim 4, wherein the top side of the side plate (311) of the volute (31) is provided with a first installation notch, the bottom side of the motor gland (71) is provided with a second installation notch (71a), and the second installation notch (71a) and the first installation notch jointly enclose an installation hole; the mounting piece (12) comprises a support column (121) extending along the axial direction of the cross-flow wind wheel (5), the motor (11) is arranged at one end, close to the cross-flow wind wheel (5), of the support column (121), and the support column (121) is fixedly arranged in the mounting hole in a penetrating mode.

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

8. The indoor unit of claim 7, wherein the motor cover (71) is connected between a bottom end of the support plate (73) and a bottom end of the water receiving plate (72), and the water receiving plate (72) has at least one stepped surface (72a), and the stepped surface (72a) is used for guiding the condensed water received by the water receiving plate (72) to a drainage hole (71b) located at a front side of the motor cover (71).

9. The indoor unit of claim 4, wherein the top end of the water receiving plate (72) is bent toward the side of the electric control box (6) to form a boss structure (721), and the boss structure (721) covers a part of the upper surface of the electric control box (6).

10. The indoor unit of air conditioner as claimed in claim 4, wherein the base plate (3) is provided with a fastening hole (3c), the motor cover assembly (7) includes a fastening rib (74) protruding from the rear side of the water receiving plate (72) and extending obliquely upward, the fastening rib (74) is fastened into the fastening hole (3c), the front side of the motor cover (71) is provided with a connection hole (71c), and a screw is inserted through the connection hole (71c) and screwed into the base plate (3).

11. The indoor unit of air conditioner as claimed in claim 4, wherein 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 the side away from the motor gland (71), the flange (732) and the vertical sub-plate (731) enclose an arc-shaped avoiding area (73a), and the end of the cross-flow wind wheel (5) extends into the arc-shaped avoiding area (73 a); one end of the heat exchanger (4) close to the motor gland assembly (7) is provided with a connecting plate (41), and the heat exchanger (4) is supported on the flange (732) through the connecting plate (41).

12. The indoor unit of air conditioner according to claim 11, wherein the flange (732) is formed with a rib (7321) on the outer surface facing away from the cross-flow wind wheel (5), and the connection plate (41) is located on the side of the rib (7321) facing the water receiving plate (72).

13. The indoor unit of air conditioner as claimed in claim 1, wherein the cross-flow wind wheel (5) comprises an air supply section (51) and an axial end installation section (52) which are connected with each other along a length direction, the axial end installation section (52) comprises an annular casing (521) connected with the air supply section (51) and a radial partition plate (522) which is arranged in the annular casing (521) and close to one end of the air supply section (51), the motor (11) is arranged in the axial end installation section, the radial partition plate (522) is provided with a driving hole (522a), and a power output shaft (111) of the motor is arranged in the driving hole (522a) in a penetrating manner to drive the cross-flow wind wheel (5) to rotate.

14. The indoor unit of air conditioner as claimed in any one of claims 1 to 13, wherein the motor (11) is an external rotor motor, the external rotor motor comprises a power output shaft (111), an external rotor (112) and a stator (113), the power output shaft (111) is connected with the cross-flow wind wheel (5), and the mounting member (12) is fixedly connected with one side of the stator (113) which is far away from the cross-flow wind wheel (5).

15. An air conditioner comprising an outdoor unit and an indoor unit according to any one of claims 1 to 14, wherein the outdoor unit and the indoor unit are connected by refrigerant pipes.

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