CN113078753A

CN113078753A - Motor skeleton, motor, fan and air conditioner

Info

Publication number: CN113078753A
Application number: CN202110447683.5A
Authority: CN
Inventors: 徐跃峰; 姚碧波; 覃宏; 肖凯; 曹璇
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-07-06

Abstract

This application relates to motor technical field on the whole, particularly, relates to a motor skeleton, motor, fan and air conditioner, and the skeleton includes skeleton body and first locating part, and first locating part is installed in the skeleton body, first locating part includes first spacing portion and the spacing portion of second, first spacing portion is followed the axial extension of skeleton body, first spacing portion restriction bridge wire orientation the inboard removal of skeleton body, the spacing portion protrusion of second in first spacing portion week side, the spacing portion restriction bridge wire of second is in this body axial rebound of skeleton, in this application, the locating part restriction bridge wire removes, prevents that motor control board or rotor are touch to the bridge wire, avoids the motor to take place withstand voltage bad, electrical safety accident such as short circuit.

Description

Motor skeleton, motor, fan and air conditioner

Technical Field

The application relates to the technical field of motors in general, and particularly relates to a motor framework, a motor, a fan and an air conditioner.

Background

At present, a winding gap bridge wire in a motor is easy to tilt and touch a motor control board or a rotor, so that the motor is subjected to electrical safety accidents such as poor voltage resistance, short circuit and the like, the rotor rotates and rubs and breaks the gap bridge wire, and accordingly, the open circuit or the short circuit is caused, and the abnormal accident of motor failure is caused.

Disclosure of Invention

In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In order to solve the technical problem of electrical safety accidents caused by movement and tilting of the bridge crossing wire, the main objective of the application is to provide a motor framework, a motor, a fan and an air conditioner.

In order to achieve the purpose of the invention, the following technical scheme is adopted in the application:

an electric machine armature comprising:

a skeleton body;

the first limiting piece is mounted on the framework body;

the first limiting part comprises a first limiting part and a second limiting part, the first limiting part is arranged along the axial direction of the framework body, the first limiting part limits the bridge line to move towards the inner side of the framework body, the second limiting part protrudes out of the first limiting part in the circumferential direction, and the second limiting part limits the bridge line to move upwards towards the axial direction of the framework body.

Further, in some embodiments of the present application, the first limiting member further includes an elastic portion for connecting with the motor control board, the first limiting portion is provided with a mounting hole, and a portion of the elastic portion is mounted in the mounting hole.

Further, in some embodiments of the present application, the second limiting portion has a limiting surface facing the framework body, the limiting surface extends from the root of the second limiting portion toward the framework body in an inclined manner, and a molded line of the limiting surface is in a concave arc shape.

Further, in some embodiments of the present application, the first limiting members are provided in a plurality, and the first limiting members are provided at intervals along the circumferential direction of the frame body.

Further, in some embodiments of the present application, the first limiting portion is provided with the second limiting portion on two opposite sides of the framework body in the circumferential direction.

Further, in some embodiments of the present application, the frame body is provided with a second limiting member, and the second limiting member has a positioning portion for being assembled with the motor control board.

Further, in some embodiments of the present application, the second limiting part has a limiting structure protruding from the positioning portion in the circumferential direction of the frame body, and the limiting structure limits the motor control board from moving toward the frame body.

The utility model provides a motor, including the stator and with stator complex rotor, the stator includes stator core, winding and above-mentioned motor skeleton, stator core reaches the winding assembly in motor skeleton.

A fan comprises an impeller, a volute and the motor, wherein the impeller is located in the volute, and the motor is connected with the impeller.

An air conditioner comprises an outdoor unit, wherein the fan is installed on the outdoor unit.

According to the technical scheme, the motor framework, the motor, the fan and the air conditioner have the advantages and positive effects that:

the movement of the bridge wire is limited, the bridge wire is prevented from touching a motor control board or a rotor, and electric safety accidents such as poor withstand voltage, short circuit and the like of the motor are avoided.

The utility model provides an electric motor skeleton, electric motor skeleton includes skeleton body and first locating part, and first locating part is installed in the skeleton body, first locating part includes first spacing portion and the spacing portion of second, first spacing portion is followed the axial extension of skeleton body, first spacing portion restriction overline line is to the inboard removal of skeleton body, the spacing portion protrusion of second in first spacing portion week side, the spacing portion restriction overline of second is in skeleton body axial rebound.

This application on the other hand provides a motor, and above-mentioned motor skeleton is installed to the motor, and first locating part restriction gap bridge line removes towards the skeleton inboard, avoids rotor rotary friction and breaks the gap bridge line, prevents that the motor from taking place the short circuit or the unusual that opens circuit, and the spacing portion of second restriction gap bridge line perk contacts with the motor control board, avoids the motor to take place withstand voltage bad, electrical safety accidents such as short circuit.

This application on the other hand provides a fan, and above-mentioned motor is installed to the fan, because the skeleton body is provided with first locating part, the restriction gap bridge line removes, has improved motor electrical safety, has guaranteed the stability of fan operation.

This application still provides an air conditioner, and above-mentioned fan is installed to the air conditioner, and the operating stability of air conditioner is good.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic diagram of a motor backbone shown in accordance with an exemplary embodiment.

Fig. 2 is a schematic top view of a motor armature shown in accordance with an exemplary embodiment.

Fig. 3 is a cross-sectional view of a first stop member of a motor frame in the direction a-a of fig. 2, according to an exemplary embodiment.

Fig. 4 is a schematic diagram of a stator core of an electric machine according to an exemplary embodiment.

Fig. 5 is a schematic view of a stator of an electric machine according to an exemplary embodiment.

FIG. 6 is a schematic view of a stator assembly of an electric machine shown in accordance with an exemplary embodiment.

FIG. 7 is a schematic diagram of a motor control board for a motor according to an exemplary embodiment.

FIG. 8 is a partial schematic view of an electric machine shown in accordance with an exemplary embodiment.

Fig. 9 is a schematic cross-sectional view of a motor shown in fig. 8 taken along B-B in accordance with an exemplary embodiment.

Wherein the reference numerals are as follows:

100-motor skeleton; 200-a stator core; 300-bridge crossing wire; 400-winding; 500-a stator; 600-a housing; 700-motor control board; 800-a stator assembly;

110-a first stop; 120-a second stop; 130-skeleton body

111-a first stop; 112-a second limit part; 113-an elastic portion; 114-mounting holes; 115-a limiting surface;

121-a positioning section; 122-a limit structure;

710-positioning holes; 720-electrolytic capacitor; 730-plate body.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application are within the scope of the present application without inventive efforts, and therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention but only to represent selected embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to solve the technical problem of electrical safety accidents caused by the movement and tilting of the gap bridge wire 300, the main object of the present application is to provide a motor frame 100, a motor, a blower and an air conditioner, wherein the motor is provided with the motor frame 100, the blower is provided with the motor, the air conditioner is provided with the blower, the motor frame 100 comprises a frame body 130 and a first limiting member 110, the first limiting member 110 is provided on the frame body 130, the first limiting member 110 comprises a first limiting part 111 and a second limiting part 112, the first limiting part 111 extends along the axial direction of the frame body 130, the first limiting part 111 limits the gap bridge wire 300 to move towards the inner side of the frame body 130, the gap bridge wire 300 is prevented from contacting with the rotor, the rotor is prevented from rotating and rubbing and breaking the gap bridge wire 300, thereby avoiding causing a circuit break and causing an abnormal accident that the motor or the blower fails, the second limiting part 112 protrudes out of the first limiting part 111, the second limiting part 112 limits the gap bridge wire 300 to move upwards in the axial direction of the framework body 130, prevents the gap bridge wire 300 from tilting and contacting with the motor control panel 700, and avoids safety accidents such as poor voltage resistance and short circuit of the motor.

Fig. 1 is a schematic diagram of an electric machine backbone 100 shown in accordance with an exemplary embodiment.

Fig. 2 is a schematic top view of a motor skeleton 100 according to an exemplary embodiment.

Fig. 3 is a schematic cross-sectional view of a first limiting member 110 of a motor frame 100 in the direction a-a in fig. 2 according to an exemplary embodiment.

The embodiment of the application provides a motor framework 100, a motor, a fan and an air conditioner, wherein the motor framework 100 is installed on the motor, the motor is installed on the fan, and fig. 1 to 3 are referred to, wherein the motor framework 100 comprises a framework body 130, and a first limiting part 110 and a second limiting part 120 which are arranged on the framework body 130. As will be understood by those skilled in the art, in the embodiment of the present application, the first limiting member 110 and the second limiting member 120 may be integrally formed with the frame body 130, so as to reduce the processing steps of the motor frame 100 and improve the production efficiency, or the first limiting member 110 and the second limiting member 120 are mounted on the frame body 130 in a clamping manner, so as to facilitate the maintenance and replacement of the first limiting member 110 and the second limiting member 120 and improve the universality of the first limiting member 110 and the second limiting member 120. Skeleton body 130 can use polyester or nylon materials, skeleton body 130 keeps apart winding 400 and iron core, play the insulation protection effect, increase creepage distance simultaneously, make electrical safety more reliable, the material of first spacing portion 111 and the spacing portion 112 of second can be the same, first spacing portion 111 and the spacing portion 112 integrated into one piece of second, when the material of first spacing portion 111 and the spacing portion 112 of second is the metal, can improve motor skeleton 100's structural strength, when the material of first spacing portion 111 and the spacing portion 112 of second is plastics, can with the integrative injection moulding of skeleton body 130, and the machining efficiency is improved.

With reference to fig. 1 and fig. 3, the first limiting member 110 includes a first limiting portion 111 and a second limiting portion 112, the first limiting portion 111 extends along the axial direction of the frame body 130, the first limiting portion 111 limits the bridge wire 300 to move towards the inner side of the frame body 130, the second limiting portion 112 protrudes out of the peripheral side of the first limiting portion 111, and the second limiting portion 112 limits the bridge wire 300 to move in the axial direction of the frame body 130.

In the embodiment of the present application, the first position-limiting portion 111 is a cylindrical structure, and the first position-limiting portion 111 extends along the axial direction of the frame body 130, and as understood by those skilled in the art, the cross-sectional profile of the first position-limiting portion 111 may be a polygon or an irregular shape formed by a straight edge and an arc edge.

First spacing portion 111 is provided with spacing portion 112 of second in the protrusion respectively towards the relative both sides on the skeleton body 130 circumference direction, spacing portion 112 of second is located the week side of first spacing portion 111 upper end, make to have sufficient distance between spacing portion 112 of second and the skeleton body 130 and supply the gap bridge line 300 to walk the line, prevent simultaneously that gap bridge line 300 perks from contacting with motor control panel 700, make gap bridge line 300 effectively placed and fix a position, avoid the motor to take place the accident of short circuit or open circuit, make the fan operation safe and reliable more.

In order to avoid the gap bridge wire 300 from coming off from the second limiting portion 112 due to certain vibration during the operation of the motor, in the embodiment of the present application, as shown in fig. 3, the second limiting portion 112 has a limiting surface 115 facing the frame body 130, and the limiting surface 115 extends from the root of the second limiting portion 112 toward the frame body 130 in an inclined manner. Preferably, the profile of the limiting surface 115 is concave arc-shaped, which is similar to the profile of the hook surface of the crescent, so as to effectively prevent the bridgewire 300 from coming off from the second limiting portion 112.

The upper end portion of the first limiting member 110 is provided with a mounting hole 114 extending along the axial direction of the frame body 130, the mounting hole 114 is a blind hole, and when the first limiting portion 111 is of a cylindrical structure, the mounting hole 114 is coaxial with the first limiting portion 111, so that the wall thickness of the circumferential side of the mounting hole 114 is the same, the structural strength of the first limiting member 110 is ensured, and the first limiting member 110 is prevented from being broken. The cross-sectional profile of the mounting hole 114 may be a polygon or an irregular shape formed by straight and arc sides only from the perspective of its effect of mounting the elastic portion 113.

The frame body 130 is generally annular, and therefore, the number of the first limiting members 110 can be set according to the number of the bridge lines 300 and the use requirement, when a plurality of the first limiting members 110 are provided, the plurality of the first limiting members 110 are spaced apart along the circumferential direction of the frame body 130, and one second limiting member 120, two second limiting members 120 or a plurality of the second limiting members 120 can be disposed between two adjacent first limiting members 110.

The second limiting members 120 are used for being connected to the motor control board 700, so as to prevent the motor control board 700 from rotating around the circumference of the motor frame 100 and moving radially, and therefore, a person skilled in the art can set the number and positions of the second limiting members 120 according to design requirements, in this embodiment of the application, three second limiting members 120 are provided, and the three second limiting members 120 are spaced in the circumferential direction of the motor frame 100, so that the motor control board 700 is effectively supported and fixed.

Referring to fig. 1 to 3, the second limiting member 120 has a positioning portion 121 and a limiting structure 122, and the positioning portion 121 is used for being assembled and connected with the motor control board 700. In the axial direction of the motor frame 100, the limiting structure 122 protrudes from the positioning portion 121, and after the positioning portion 121 is assembled with the motor control board 700, the limiting structure 122 can limit the motor control board from further moving towards the motor frame 100. In fig. 3, an axially extending dotted line on the second limiting member 120 is used as a separation line between the limiting body and the limiting structure 122, and a portion outside the dotted line is used as the limiting structure 122, specifically, the second limiting member 120 includes a limiting body (not labeled), a positioning portion 121 and a limiting structure 122, the limiting body is disposed along the axial extension of the framework body 130, the positioning portion 121 is disposed at the upper end portion of the limiting body, and the limiting structure 122 includes a protrusion protruding from the limiting body along the circumferential direction of the framework body 130.

The embodiment of the application also provides a motor, and the motor is provided with the motor framework 100.

Fig. 4 is a schematic diagram of a stator core 200 of an electric machine according to an exemplary embodiment. Fig. 5 is a schematic view of a stator 500 of an electric machine according to an exemplary embodiment.

Referring to fig. 4 and 5, the motor includes a stator assembly 800, a rotor, an end cover, and a motor control board 700, the stator assembly 800 includes a housing 600 and a stator 500, the stator 500 is assembled in the housing 600, the rotor is matched with the stator 500, the stator core 200, the motor frame 100, and the winding 400 are assembled to form the stator 500, the motor control board 700 is installed between the motor frame 100 and the end cover, and a heat conductive silica gel is filled between the motor control board 700 and the end cover.

The gap bridge wire 300 of the stator extends out of the winding 400 and is then connected with other windings 400, the middle part of the gap bridge wire 300 is routed from the outer sides of the first limiting part 110 and the second limiting part 120, the first limiting part 111 limits the gap bridge wire 300 to move towards the inner side of the framework body 130, the gap bridge wire 300 is prevented from contacting with a rotor, the rotor is prevented from rotating and rubbing and breaking the gap bridge wire 300, and therefore the motor is prevented from being broken or short-circuited, the second limiting part 112 protrudes out of the peripheral side of the first limiting part 111, the second limiting part 112 limits the gap bridge wire 300 to move upwards in the axial direction of the framework body 130, the gap bridge wire 300 is prevented from tilting and contacting with the motor control board 700, and safety accidents such as pressure resistance, short circuit and the like of.

Fig. 6 is a schematic diagram illustrating a stator assembly 800 of an electric machine according to an exemplary embodiment. Fig. 7 is a schematic diagram of a motor control board 700 of a motor according to an exemplary embodiment. FIG. 8 is a partial schematic view of an electric machine shown in accordance with an exemplary embodiment. Fig. 9 is a schematic cross-sectional view of a motor shown in fig. 8 taken along B-B in accordance with an exemplary embodiment.

Referring to fig. 6, the stator 500 is installed in the housing 600, the first limiting member 110 further includes an elastic portion 113, the elastic portion 113 is installed in the installation hole 114 of the first limiting portion 111, and a portion of the elastic portion 113 extends from an upper end portion of the first limiting portion 111, in this embodiment, the elastic portion 113 is of a spring structure, and a material of the elastic portion 113 may be metal or plastic with a certain elastic capability, and under understanding of those skilled in the art, the elastic portion 113 may also be of a columnar structure form or other structural forms, so as to satisfy the requirement of being capable of being compressed and having an elastic restoring force, the shape of the elastic portion 113 corresponds to that of the installation hole 114, the contour of the installation hole 114 is greater than that of the elastic portion 113, and it is ensured that the expansion and contraction of the elastic portion 113.

Referring to fig. 7, the motor control board 700 includes a board body 730, the board body 730 is provided with an electrolytic capacitor 720 and other necessary electronic components for implementing functions, such as an integrated circuit and a power module, the present application mainly improves the specific structure of the motor control board 700, which is not described herein too much, the motor control board 700 is provided with a positioning hole 710 for matching with the positioning portion 121, as shown in fig. 8, the motor control board 700 is provided with a positioning hole 710 corresponding to the positioning portion 121, the positioning portion 121 is in sliding fit with the positioning hole 710, the motor control board 700 is mounted on the stator assembly 800 through the positioning portion 121, the positioning portion 121 is in nested fit with the positioning hole 710, the positioning portion 121 limits circumferential rotation and radial movement of the motor control board 700, and the elastic portion.

At present, a plurality of convex cylinders are arranged on a framework inside a motor, a plurality of corresponding round holes are arranged on a control panel and are in nested fit to support the control panel, so that a heat dissipation component on the control panel is in contact fit with an end cover through heat conduction silica gel or heat dissipation silica gel ester to achieve a heat dissipation effect, after the motor runs for a long time, the heat conduction silica gel is likely to age and loosen and cannot ensure good contact, thereby affecting the heat dissipation effect and possibly causing a burn-in accident of the motor and a fan, in the embodiment of the application, as shown in fig. 9, a first limiting part 110 is provided with an elastic part 113, after the motor control panel 700 is assembled, the motor control panel 700 compresses most of the elastic part 113 in a mounting hole 114, the elastic part 113 is deformed to generate a reaction force, the elastic part 113 enables the motor control panel 700 to press towards the end cover, thereby electronic components needing heat dissipation on the motor control panel 700 are tightly attached to, in the operation process of the motor, good contact among the electronic components, the end cover and the heat conducting silica gel is kept, and the heat dissipation effect of the motor is ensured, so that the normal operation of the fan is ensured. Further, because the elastic part 113 exerts the reaction force to the motor control panel 700 all the time, consequently, the clearance between the motor control panel 700 and the end cover can come automatically regulated size according to the soft or hard degree of heat conduction silica gel to guarantee that the motor control panel 700 and the end cover can contact well with heat conduction silica gel all the time respectively, guarantee that the motor has good radiating effect, guarantee that the too high burn-out accident of temperature rise can not appear in motor and fan.

This embodiment still provides a fan, including impeller, spiral case and above-mentioned motor, the impeller is located in the spiral case, the motor is connected the impeller to the drive the impeller rotates.

The embodiment also provides an air conditioner, which comprises an outdoor unit, wherein the outdoor unit is provided with the fan.

In summary, the present application provides a motor frame 100, a motor, a blower and an air conditioner, wherein the motor is installed with the motor frame 100, the blower is installed with the blower, and the air conditioner is installed with the blower, wherein the motor frame 100 includes a frame body 130, the frame body 130 is provided with a first limiting member 110 and a second limiting member 120, the first limiting member 110 includes a first limiting portion 111, a second limiting portion 112 and an elastic portion 113, the first limiting portion 111 limits the bridge wire 300 from moving towards the inner side of the frame body 130, so as to prevent the bridge wire 300 from contacting with the rotor, avoid the abnormal accident that the rotor rotates and rubs and breaks the bridge wire 300 to cause the failure of the motor or the blower, the second limiting portion 112 limits the bridge wire 300 from moving axially on the frame body 130, prevent the bridge wire 300 from tilting and contacting with the motor control board 700, avoid the motor from generating safety accidents such as poor pressure resistance, short circuit and the like, the elastic portion 113 is extruded by the motor control board 700, the electronic component needing heat dissipation on the motor control panel 700 is tightly attached to the heat-conducting silica gel in contact with the end cover, the heat dissipation effect of the motor is guaranteed, and therefore the normal operation of the fan is guaranteed, the second limiting part 120 comprises the positioning part 121 and the limiting structure 122, the positioning part 121 is in nested fit with the motor control panel 700, the motor control panel 700 is prevented from rotating in the circumferential direction and moving in the radial direction, and the limiting structure 122 can avoid that the motor control panel 700 continues to move towards the motor framework 100 under the condition that the elastic part 113 fails.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the general inventive concept. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric machine armature, comprising:

a skeleton body (130);

a first stopper (110) attached to the frame body (130);

the first limiting part (110) comprises a first limiting part (111) and a second limiting part (112), the first limiting part (111) extends along the axial direction of the framework body (130), the first limiting part (111) limits the bridge wire (300) to move towards the inner side of the framework body (130), the second limiting part (112) protrudes out of the peripheral side of the first limiting part (111), and the second limiting part (112) limits the bridge wire (300) to move in the axial direction of the framework body (130).

2. The motor frame according to claim 1, wherein the first limiting member (110) further comprises an elastic portion (113) for connecting with a motor control board (700), the first limiting member (111) is provided with a mounting hole (114), and a part of the elastic portion (113) is mounted in the mounting hole (114).

3. The motor frame according to claim 1, wherein the second limiting portion (112) has a limiting surface (115) facing the frame body (130), the limiting surface (115) extends from the root of the second limiting portion (112) toward the frame body (130) in an inclined manner, and the profile of the limiting surface (115) is in a concave arc shape.

4. The motor bobbin according to claim 1, wherein the first retaining member (110) is provided in plurality, and the first retaining members (110) are provided in plurality at intervals in a circumferential direction of the bobbin body (130).

5. The motor bobbin according to any one of claims 1 to 4, wherein the first stopper portion (111) is provided with the second stopper portions (112) at opposite sides of the bobbin body (130) in the circumferential direction, respectively.

6. The motor bobbin as claimed in claim 1, wherein the bobbin body (130) is mounted with a second stopper (120), the second stopper (120) having a positioning portion (121) for assembling with a motor control board (700).

7. The motor bobbin as claimed in claim 6, wherein the second stopper (120) has a stopper structure (122) protruding from the positioning portion (121) in the circumferential direction of the bobbin body (130), and the stopper structure (122) restricts the motor control board (700) from moving toward the bobbin body (130).

8. An electric machine, characterized by comprising a stator (500) and a rotor cooperating with the stator (500), the stator (500) comprising a stator core (200), a winding (400) and the machine frame (100) according to any one of claims 1-7, the stator core (200) and the winding (400) being assembled to the machine frame (100).

9. A fan comprising an impeller, a volute, and the motor of claim 8, wherein the impeller is located within the volute, and the motor is coupled to the impeller.

10. An air conditioner comprising an outdoor unit to which the blower fan of claim 9 is installed.