JP2008089196A - Air-conditioning indoor machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air-conditioning indoor machine capable of easily positioning a fan motor unit and improving accuracy in shaft center alignment of a fan and the fan motor unit. <P>SOLUTION: This air-conditioning indoor machine 2 for supplying the air exchanging heat in an indoor heat exchanger 50 into a room by the rotation of the fan 71, comprises a supporting frame 78 and the indoor fan motor unit 72. The supporting frame 78 surrounds a back side and a lower part of the fan 71. The indoor fan motor unit 72 rotates the fan 71. The indoor fan motor unit 72 has three positioning portions 736, 737, 738 on its outer periphery, and the supporting frame 78 has three insertion portions 782, 783, 784 respectively inserted into three positioning portions 736, 737, 738. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air conditioning indoor unit in which air heat-exchanged by an indoor heat exchanger is blown into a room by rotation of a fan.

Conventionally, in an air conditioning indoor unit, as a means for supporting a fan motor unit that rotates a fan, most of the outer periphery of the fan motor unit is buried in a groove or hole provided in a support frame of the air conditioning indoor unit in advance. Thus, the fan motor unit is positioned on the entire outer periphery thereof. (For example, refer to Patent Document 1).
Japanese Utility Model Publication No. 6-40952

  However, in the fan motor unit described in Patent Document 1, the outer periphery of the fan motor unit is positioned on the support frame in a state where the rotation shaft of the fan and the rotation shaft of the motor are connected. However, it was difficult and the workability was poor, which caused the manufacturing cost to rise.

  An object of the present invention is to provide an air-conditioning indoor unit in which the positioning of a fan motor unit is easy and the accuracy of axial alignment between the fan and the fan motor unit is improved.

  An air conditioning indoor unit according to a first aspect of the present invention is an air conditioning indoor unit in which air heat-exchanged by an indoor heat exchanger is blown into the room by rotation of a fan, and includes a support frame and a fan motor unit. The support frame surrounds the back side and the lower side of the fan. The fan motor unit rotates the fan. The fan motor unit has three positioning portions on the outer periphery, and the support frame has three insertion portions into which the three positioning portions are respectively inserted.

  In this air conditioning indoor unit, since the fan motor unit is positioned at three points on the support frame, there is no factor that distorts the attitude of the fan motor unit, and the fan rotation axis direction, horizontal axis direction, and vertical axis direction Is suppressed. For this reason, the accuracy of the coaxiality between the fan and the fan motor unit is improved, and the workability is improved.

  An air conditioning indoor unit according to a second invention is the air conditioning indoor unit according to the first invention, wherein one positioning portion of the three positioning portions is screwed into one of the three insertion portions. Stopped.

  In this air-conditioning indoor unit, even if one positioning part is screwed, the other two positioning parts are not fixed, so that the stress generated during screwing is easily relieved. For this reason, deformation and displacement due to stress are suppressed.

  An air conditioning indoor unit according to a third aspect of the present invention is the air conditioning indoor unit according to the first aspect of the present invention, and at least one of the three positioning portions of the fan motor unit penetrates in the tangential direction of the outer periphery of the fan motor unit. It is a positioning part with a hole which has a hole to do. Of the three insertion portions of the support frame, at least one insertion portion is a columnar insertion portion into which the holed positioning portion is inserted. And after two positioning parts except a positioning part with a hole are inserted in two insertion parts except a columnar insertion part, a positioning part with a hole is inserted in a columnar insertion part.

  In this air conditioning indoor unit, unless the other two positioning parts are accurately inserted into the corresponding two other insertion parts, the holed positioning part is not inserted into the columnar insertion part. For this reason, since all positioning is not completed until a positioning part with a hole is inserted in a columnar insertion part, the axial shift | offset | difference of a fan and a fan motor unit resulting from an assembly failure is prevented.

  An air conditioning indoor unit according to a fourth aspect of the present invention is the air conditioning indoor unit according to the first aspect of the present invention, and the fan motor unit includes a rotor, a stator, and a stator housing. The rotor is fixed to the rotating shaft of the fan and rotates by the action of magnetic force. The stator supports the rotating shaft and applies a magnetic force to the rotor. The stator housing houses the stator inside, and the outside is supported by the support frame. The three positioning portions are provided on the outer periphery of the stator housing.

  In this air conditioning indoor unit, since the fan is rotated by magnetic force, it is not necessary to mechanically connect the rotating shaft of the fan and the fan motor unit. This simplifies assembly.

  An air conditioning indoor unit pertaining to a fifth aspect of the present invention is the air conditioning indoor unit pertaining to the fourth aspect of the present invention, wherein the stator housing comprises a stator case and a stator cover. The stator case has a cylindrical shape with both ends open and accommodates the stator inside. The stator cover covers one end of the stator housed in the stator case. And three positioning parts are arranged on the stator case.

  In this air conditioning indoor unit, since the three positioning portions are integrated in the stator case, the positioning is completed by a simple operation of simply attaching the stator case to the support frame. For this reason, workability | operativity improves.

  An air conditioning indoor unit pertaining to a sixth aspect of the present invention is the air conditioning indoor unit pertaining to the fifth aspect of the present invention, wherein the stator and the stator cover are attached to and detached from the stator case in the axial direction.

  In this air conditioning indoor unit, the stator and the stator cover can be detached from the stator case while the stator case is supported by the support frame. For this reason, the maintenance work when the stator breaks down becomes easy.

  An air conditioning indoor unit pertaining to a seventh aspect of the present invention is the air conditioning indoor unit pertaining to the fifth aspect of the present invention, wherein the stator case has claw holes on the outer peripheral surface of the end portion on the side covered with the stator cover, and the stator The cover has cantilever-like connecting claws extending substantially parallel to the axis of the stator case. When the stator cover is inserted into the stator case along the axial direction, the claw hole and the coupling claw are caught with each other.

  In this air conditioning indoor unit, the stator and the stator cover can be inserted or separated from the stator case in the axial direction. For this reason, since a stator cover can be removed without using a tool, assembly work and maintenance work become easy.

  An air conditioning indoor unit pertaining to an eighth aspect of the invention is the air conditioning indoor unit pertaining to the fifth aspect of the present invention, further comprising an outer peripheral holding plate. The outer peripheral holding plate holds the outer peripheral surface of the stator case so as to be sandwiched between the support frames. The outer circumferential surface of the stator case is provided with a convex wall protruding from the outer circumferential surface by a predetermined height along the outer circumferential surface, and the convex wall is formed between the stator case and the support frame, and the stator. The gap between the case and the outer peripheral holding plate is closed.

  In this air conditioning indoor unit, the air flow generated when the fan rotates does not pass through the gap between the stator case and the support frame and the gap between the stator case and the outer peripheral holding plate. For this reason, no airflow passing sound is generated.

  In the air conditioning indoor unit pertaining to the first aspect of the invention, there is no factor that distorts the attitude of the fan motor unit, and positional deviations in the rotational axis direction, horizontal axis direction, and vertical axis direction of the fan are suppressed. For this reason, the accuracy of the coaxiality between the fan and the fan motor unit is improved, and the workability is improved.

  In the air conditioning indoor unit pertaining to the second aspect of the invention, even if one positioning part is screwed, the other two positioning parts are not fixed, so that the stress generated during screwing is easily relieved. For this reason, deformation and displacement due to stress are suppressed.

  In the air conditioning indoor unit pertaining to the third aspect of the invention, unless the other two positioning parts are accurately inserted into the corresponding two other insertion parts, the holed positioning part is not inserted into the columnar insertion part. . For this reason, axial displacement between the fan and the fan motor unit due to assembly failure is prevented.

  In the air conditioning indoor unit pertaining to the fourth aspect of the invention, since the fan is structured to rotate by magnetic force, there is no need to mechanically connect the rotation shaft of the fan and the fan motor unit. This simplifies assembly.

  In the air conditioning indoor unit pertaining to the fifth aspect of the invention, since the three positioning portions are integrated in the stator case, the positioning is completed with a simple operation of simply attaching the stator case to the support frame. For this reason, workability | operativity improves.

  In the air conditioning indoor unit pertaining to the sixth aspect of the invention, the stator and the stator cover can be detached from the stator case while the stator case is still supported by the support frame. For this reason, the maintenance work when the stator breaks down becomes easy.

  In the air conditioning indoor unit pertaining to the seventh aspect of the invention, the stator and the stator cover can be inserted or separated in the axial direction from the stator case. For this reason, since a stator cover can be removed without using a tool, assembly work and maintenance work become easy.

  In the air conditioning indoor unit pertaining to the eighth aspect of the invention, the air flow generated when the fan rotates does not pass through the gap between the stator case and the support frame and the gap between the stator case and the outer peripheral holding plate. For this reason, no airflow passing sound is generated.

<Overall configuration of air conditioner>
FIG. 1 is an external view of an air conditioner. The air conditioner 1 is a device for supplying conditioned air to a room, and is an air conditioner indoor unit 2 (hereinafter referred to as an indoor unit 2) attached to an indoor wall surface or the like, and an air conditioner installed outdoors. An outdoor unit 3 (hereinafter referred to as an outdoor unit 3) is provided. The indoor unit 2 and the outdoor unit 3 are connected by a refrigerant pipe 4 so that refrigerant can be circulated.

<Schematic configuration of refrigerant circuit of air conditioner>
FIG. 2 is a configuration diagram of a refrigerant circuit of the air conditioner. The refrigerant circuit is formed by an accumulator 31, a compressor 32, a four-way switching valve 33, an outdoor heat exchanger 30, an electric expansion valve 34, and an indoor heat exchanger 50.

  The indoor heat exchanger 50 is arrange | positioned in the indoor unit 2, and heat-exchanges with indoor air. The indoor unit 2 is provided with a fan 71 and an indoor fan motor unit 72. The fan 71 sucks room air and discharges the air heat-exchanged by the indoor heat exchanger 50 into the room. The indoor fan motor unit 72 rotates the fan 71.

  The accumulator 31, the compressor 32, the four-way switching valve 33, the outdoor heat exchanger 30, and the electric expansion valve 34 are disposed in the outdoor unit 3. The accumulator 31 is connected to the suction side of the compressor 32, and the four-way switching valve 33 is connected to the discharge side of the compressor 32.

  The outdoor unit 3 is provided with a propeller fan 38 and an outdoor fan motor unit 39. The propeller fan 38 discharges the air heat-exchanged by the outdoor heat exchanger 30 to the outside. The outdoor fan motor unit 39 rotates the propeller fan 38.

<Configuration of indoor unit>
FIG. 3 is a right side sectional view of the indoor unit of the air conditioner.

(Upper casing)
The upper casing 6 covers the upper part of the indoor unit 2. The upper casing 6 is provided with suction ports 60 and 61. The indoor heat exchanger 50 is disposed so as to face the circumferential surface of the fan 71 and is attached so as to surround the front, upper, and rear of the fan 71. In the indoor heat exchanger 50, heat exchange is performed between the air sucked from the suction ports 60 and 61 and the refrigerant by rotating the fan 71.

(Lower casing)
The lower casing 70 includes an outer surface portion 79, a support frame 78, and the like. The outer surface portion 79 is a portion that appears in the field of view as the outer surface of the indoor unit 2 in front view. In addition, the outer surface 79 is provided with an air outlet 741 that is an opening along the longitudinal direction of the indoor unit 2. As shown in FIG. 3, the air outlet 741 communicates with the internal space in which the fan 71 is accommodated. From this air outlet 741, the air flow generated by the fan 71 is blown into the room. In addition, the air outlet 741 is provided with a horizontal flap 742 for guiding the air flow to be blown out. The horizontal flap 742 is provided so as to be rotatable about an axis parallel to the longitudinal direction of the indoor unit 2. The horizontal flap 742 is rotationally driven by a flap motor (not shown), and can open and close the air outlet 741.

(Blower unit)
FIG. 4 is a schematic plan view of the blower unit. The blower unit 8 includes a fan 71 and an indoor fan motor unit 72 for rotating the fan 71. The fan 71 is made of a resin material such as AS resin, is formed in a long and thin cylindrical shape, and is arranged so that the long axis is horizontal.

(fan)
FIG. 5 is a cross-sectional view of the fan and the indoor fan motor unit assembled in the support frame. The fan 71 includes end plates 710 and 711, a first shaft 712, a second shaft 713, and a wing portion 714. The end plates 710 and 711 are provided on both sides of the wing portion 714. The end plate 710 is formed integrally with the rotor 719 in order to connect the fan 71 and a rotor 719 described later. The first shaft 712 is disposed on the rotation axis of the end plate 710 and is connected to the end plate 710. The second shaft 713 is disposed on the rotation axis of the end plate 711 and is connected to the end plate 711. The first shaft 712 and the second shaft 713 serve as rotation axes when the fan 71 rotates.

(Indoor fan motor unit)
The indoor fan motor unit 72 is an outer rotor type motor, and includes a rotor 719 and a stator assembly 720.

  The rotor 719 is formed of a resin material containing minute magnet particles, and rotates by a magnetic force generated from the stator 721 of the stator assembly 720. Note that the rotor 719 is disposed on the radially outer side of the stator 721.

  FIG. 6 is an exploded perspective view of the stator assembly. As shown in FIG. 6, the stator assembly 720 includes a stator 721, a stator housing 731, a vibration isolating rubber 77, and a stator bearing 75. The stator 721 includes a cylindrical portion 722 that protrudes in the axial direction and a protruding portion 723 that protrudes radially outward of the cylindrical portion 722.

  The cylindrical portion 722 stores an iron core (not shown), a coil (not shown), and the like for generating a magnetic field, and is arranged with a certain clearance from the inner peripheral surface of the rotor 719 (see FIG. 5). Anti-vibration rubber 77 is attached to the protruding portion 723. The stator 721 has a bearing hole 724 penetrating in the center in the axial direction.

  As shown in FIG. 6, the stator housing 731 includes a stator case 732 and a stator cover 739. The stator case 732 has a cylindrical portion 733 and a cylindrical portion 734. Further, as shown in FIG. 5, a cylindrical portion 722 of the stator 721 is disposed in the cylindrical portion 733, and a predetermined interval is provided between the outer peripheral surface of the cylindrical portion 722 and the inner peripheral surface of the cylindrical portion 733. Space 733a is secured. A rotor 719 is inserted into the space 733a, but a certain gap is secured between the outer peripheral surface of the rotor 719 and the inner peripheral surface of the cylindrical portion 733.

  The stator cover 739 has a confirmation hole 739a in the center. The confirmation hole 739 a has a larger inner diameter than the bearing hole 724 of the stator 721. For this reason, when the stator bearing 75 is inserted into the bearing hole 724 of the stator 721, it is confirmed from the outside whether or not the stator bearing 75 is accurately fitted in the bearing hole 724.

(bearing)
As shown in FIG. 5, the stator bearing 75 is a member that supports the first shaft 712 of the fan 71, and includes a bearing portion 751 and a bearing holding portion 752.

  The bearing portion 751 is made of a synthetic resin, and is disposed at a substantially central portion of the stator 721. The bearing portion 751 supports the first shaft 712 so that the fan 71 can move in the direction of the rotation axis. The bearing holding portion 752 is formed of a rubber material in a cylindrical shape, and supports the bearing portion 751 so as to wrap the bearing portion 751 in order to suppress minute vibrations of the bearing portion 751 due to the rotation of the fan 71.

  The fan bearing 76 is a bearing that supports the second shaft 713 of the fan 71, and includes a bearing portion 761 and a bearing holding portion 762.

  The bearing portion 761 is made of synthetic resin and is provided on a part of the support frame 78 that faces the end plate 711 of the fan 71. The bearing portion 761 supports the second shaft 713 so that the fan 71 can move in the rotation axis direction. The bearing holding portion 762 is formed of a rubber material in a cylindrical shape, and supports the bearing portion 761 so as to wrap the bearing portion 761 in order to suppress minute vibrations of the bearing portion 761 due to the rotation of the fan 71.

<Assembling the stator assembly>
Here, a method of assembling the stator assembly 720 will be described with reference to FIG. First, the operator attaches the vibration absorbers 771, 772, 773 of the vibration-proof rubber 77 to the three protrusions 723 of the stator 721.

  Next, the operator inserts the stator 721 from the cylindrical part 734 side in the stator case 732 toward the cylindrical part 733 side. At this time, the vibration absorbers 771, 772, 773 are positioned along the partition 734a of the cylindrical portion 734, and are inserted until the vibration absorbers 771, 772, 773 hit the step 735 of the stator case 732.

  Next, the operator inserts the stator cover 739 from the cylindrical portion 734 side of the stator case 732 toward the inside of the stator case 732. At this time, the connecting claws 739d and 739e of the stator cover 739 are inserted until they fit into the claw holes 732d and 732e of the stator case 732.

  Next, the operator inserts the stator bearing 75 into the bearing hole 724 from the cylindrical portion 722 side of the stator 721. In addition, in order to confirm whether or not the stator bearing 75 is securely inserted into the bearing hole 724, the operator accurately fits the stator bearing 75 into the bearing hole 724 from the confirmation hole 739 a of the stator cover 739. Check that you are doing.

<Positioning of stator assembly to support frame>
FIG. 7 is a perspective view of a part of the indoor fan motor unit and the fan, and FIG. 8 is a perspective view showing a state in which the blower unit is assembled to the support frame. The stator assembly 720 is positioned on the outer periphery holding portion 788 of the support frame 78 by the stator case 732. Therefore, the stator case 732 has a ring 736, a claw 737, and a protrusion 738 as positioning portions on the outer peripheral surface. (See Figure 7)
The ring 736 is a positioning portion with a hole, and has a hole that protrudes radially outward of the cylindrical portion 734 of the stator case 732 and penetrates in the tangential direction of the cylindrical portion 734. The claw 737 is a claw positioning portion, has a substantially C shape, and protrudes radially outward from the outer peripheral surface of the cylindrical portion 734. The protrusion 738 is a convex positioning portion and protrudes radially outward from the outer peripheral surface of the cylindrical portion 734.

The outer periphery holding part 788 of the support frame 78 has a cylindrical protrusion 782, a slit 783, and a hole 784 as an insertion part into which the ring 736, the claw 737, and the protrusion 738 are inserted. (See Figure 8)
The columnar protrusion 782 is a columnar insertion portion, and the above-described ring 736 is inserted therein. The slit 783 is a slit-like insertion part, and the aforementioned claw 737 is inserted therein. The aforementioned protrusion 738 is inserted into the hole 784. As a positioning method, the operator positions the claw 737 and the projection 738 in the slit 783 and the hole 784, and then slightly rotates the stator case 732 in the circumferential direction to insert the ring 736 into the cylindrical projection 782. .

  The support frame 78 is a structure in which a back plate 786 that covers the back side of the wing 714 of the fan 71 and a lower plate 787 that covers the bottom of the wing 714 of the fan 71 are connected in a substantially L shape. The outer periphery holding portion 788 described above is formed at the corner of the support frame 78 and holds almost half of the outer periphery of the stator case 732.

  After the stator case 732 is positioned on the outer periphery holding portion 788 by the ring 736, the claw 737, and the protrusion 738, the outer periphery holding plate 81 is attached to the support frame 78 so as to cover the exposed outer periphery of the stator case 732. . The attached outer peripheral holding plate 81 is fixed to the support frame 78 with screws 811, and the screws 811 are fastened to the columnar protrusions 782 into which the ring 736 is inserted.

  On the outer peripheral surface of the stator case 732, a convex wall 732a raised by a predetermined height is provided over substantially the entire circumference. The convex wall 732a has a role of closing a gap formed by the stator case 732 being surrounded by the outer peripheral holding portion 788 and the outer peripheral holding plate 81, and thereby the air flow generated when the fan 71 rotates is It becomes impossible to pass through the gap. As a result, the passing sound of the air flow is suppressed.

<Removing the indoor fan motor unit>
When an operator must replace the indoor fan motor unit 72 due to a failure or the like, first, the stator cover 739 is removed from the stator case 732, and then the stator 721 is pulled out in the axial direction. Thus, since the stator 721 can be removed with the outer peripheral holding plate 81 attached, workability is good.

<Features>
(1)
In this indoor unit 2, since the three positioning portions 736, 737, and 738 of the indoor fan motor unit 72 are respectively inserted into the three insertion portions 782, 783, and 784 of the support frame 78, the indoor fan motor unit 72 is positioned. There is no factor that distorts the posture of the unit 72, and the positional deviation of the fan 71 in the rotation axis direction, horizontal axis direction, and vertical axis direction is suppressed. For this reason, the accuracy of the coaxiality between the fan and the fan motor unit is improved, and the workability is improved.
(2)
In the indoor unit 2, a ring 736 that is one of the three positioning portions 736, 737, and 738 is screwed to a cylindrical projection 782 that is one of the three insertion portions 782, 783, and 784. Is done. For this reason, even if the ring 736 is screwed, the other two positioning portions 737 and 738 are not fixed. Therefore, the stress generated at the time of screwing is relieved, and deformation and displacement due to the stress are suppressed.
In addition, after the two positioning portions excluding the ring 736 are inserted into the two insertion portions excluding the cylindrical protrusion 782, the ring 736 is inserted into the cylindrical protrusion 782. For this reason, since all positioning is not completed until the ring 736 is inserted into the cylindrical protrusion 782, the axial displacement of the fan and the fan motor unit due to assembly failure is prevented.
(3)
Since the indoor unit 2 has a structure in which the fan 71 is rotated by magnetic force, it is not necessary to mechanically connect the first shaft 712 of the fan 71 and the indoor fan motor unit 72, and assembly is simplified. Further, since the three positioning portions 736, 737, and 738 are integrated in the stator case 732 of the indoor fan motor unit 72, the positioning is completed by a simple operation of simply attaching the stator case 732 to the support frame 78. Good sex.
(4)
In the indoor unit 2, the stator 721 and the stator cover 739 can be inserted or separated from the stator case 732 in the axial direction. For this reason, since the stator cover 739 and the stator 721 can be removed without using a tool, assembly work and maintenance work are facilitated.
(5)
In this indoor unit 2, the convex wall 732 a of the stator case 732 blocks the gap between the stator case 732 and the support frame 78 and the gap between the stator case 732 and the outer peripheral holding plate 81. The air flow generated during the rotation of 71 does not pass through the gap between the stator case 732 and the support frame 78 and the gap between the stator case 732 and the outer peripheral holding plate 81. For this reason, no airflow passing sound is generated.

  As described above, the present invention is an indoor unit of a type in which positioning of the indoor fan motor unit is easy, the accuracy of axial alignment with the fan is high, and the fan and the indoor fan motor unit are supported on one support frame. Useful.

External view of air conditioner Configuration diagram of refrigerant circuit of air conditioner Cross-sectional view of right side of indoor unit of air conditioner Schematic plan view of the blower unit Sectional view of fan and indoor fan motor unit assembled in support frame Disassembled perspective view of stator assembly Perspective view of indoor fan motor unit and part of fan The perspective view which shows the state by which a ventilation unit is assembled to a support frame.

Explanation of symbols

2 Indoor units (air conditioning indoor units)
50 Indoor heat exchanger 71 Fan 72 Indoor fan motor unit 78 Support frame 81 Outer peripheral holding plate 712 First shaft 719 Rotor 721 Stator 731 Stator housing 732 Stator case 732a Convex walls 732d and 732e Claw hole 739 Stator cover 739d , 739e Connecting claw 736 Ring (positioning part with hole)
737 Nail (positioning part)
738 Protrusion (positioning part)
782 Cylindrical protrusion (columnar insertion part)
783 Slit (Insertion part)
784 hole (insertion part)

Claims (8)

An air-conditioning indoor unit in which the air heat-exchanged by the indoor heat exchanger (50) is blown into the room by the rotation of the fan (71),
A support frame (78) surrounding the back side and the lower side of the fan (71);
A fan motor unit (72) for rotating the fan (71);
With
The fan motor unit (72) has three positioning portions (736, 737, 738) on the outer periphery,
The support frame (78) has three insertion portions (782, 783, 784) into which the three positioning portions (736, 737, 738) are respectively inserted.
Air conditioning indoor unit (2). One positioning portion (736) of the three positioning portions (736, 737, 738) is one insertion portion (782) of the three insertion portions (782, 783, 784). Screwed to the
The air conditioning indoor unit (2) according to claim 1. Of the three positioning portions (736, 737, 738) of the fan motor unit (72), at least one of the positioning portions has a hole penetrating in the tangential direction of the outer periphery of the fan motor unit (72). Positioning part (736) with
Of the three insertion portions (782, 783, 784) of the support frame (78), at least one of the insertion portions is a columnar insertion portion (782) into which the holed positioning portion (736) is inserted. And
After the two positioning portions (737, 738) excluding the positioning portion with holes (736) are inserted into the two insertion portions (783, 784) excluding the columnar insertion portion (782), the holes The attached positioning portion (736) is inserted into the columnar insertion portion (782).
The air conditioning indoor unit (2) according to claim 1. The fan motor unit (72) includes a rotor (719) fixed to a rotating shaft (712) of the fan (71) and rotating by the action of magnetic force, and supports the rotating shaft (712) and the rotor (719). ) And a stator housing (731) which houses the stator (721) on the inside and is supported by the support frame (78) on the outside,
The three positioning portions (736, 737, 738) are provided on the outer periphery of the stator housing (731).
The air conditioning indoor unit (2) according to claim 1. The stator housing (731) has a cylindrical shape with both ends opened, and a stator case (732) that houses the stator (721) inside, and the stator housed in the stator case (732). A stator cover (739) covering one end of the child (721),
Three positioning portions (736, 737, 738) are arranged on the stator case (732).
The air conditioning indoor unit (2) according to claim 4. The stator (721) and the stator cover (739) are attached to and detached from the stator case (732) in the axial direction.
The air conditioning indoor unit (2) according to claim 5. The stator case (732) has claw holes (732d, 732e) on the outer peripheral surface of the end portion on the side covered with the stator cover (739),
The stator cover (739) has cantilever-like connecting claws (739d, 739e) extending substantially parallel to the axis of the stator case (732),
When the stator cover (739) is inserted into the stator case (732) along the axial direction, the claw holes (732d, 732e) and the connection claw (739d, 739e) are caught with each other.
The air conditioning indoor unit (2) according to claim 5. An outer peripheral holding plate (81) for holding the outer peripheral surface of the stator case (732) so as to be sandwiched between the support frame (78);
On the outer peripheral surface of the stator case (732), a convex wall (732a) raised from the outer peripheral surface by a predetermined height is provided along the outer peripheral surface,
The convex wall (732a) blocks the gap between the stator case (732) and the support frame (78) and the gap between the stator case (732) and the outer peripheral holding plate (81). ,
The air conditioning indoor unit (2) according to claim 5.

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