WO2021060676A1 - Moteur - Google Patents

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Publication number
WO2021060676A1
WO2021060676A1 PCT/KR2020/008591 KR2020008591W WO2021060676A1 WO 2021060676 A1 WO2021060676 A1 WO 2021060676A1 KR 2020008591 W KR2020008591 W KR 2020008591W WO 2021060676 A1 WO2021060676 A1 WO 2021060676A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
rotor
stator
seating portion
insulator
Prior art date
Application number
PCT/KR2020/008591
Other languages
English (en)
Korean (ko)
Inventor
황웅
강원수
김지민
한진우
Original Assignee
삼성전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Publication of WO2021060676A1 publication Critical patent/WO2021060676A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor

Definitions

  • the present invention relates to a motor having an improved assembly structure.
  • a motor is a machine that obtains rotational force from electric energy, and includes a stator and a rotor.
  • the rotor is configured to interact electromagnetically with the stator and rotates by a force acting between the magnetic field and the current flowing in the coil.
  • the motor can be used in a variety of home appliances, for example, can be used in a vacuum cleaner.
  • a vacuum cleaner is a household appliance that filters foreign substances from the inside of the cleaning body after inhaling air containing foreign substances such as dust using air pressure generated by a motor installed inside the cleaning body.
  • the motor generates suction power by lowering the internal pressure by discharging the air inside the cleaner to the outside.
  • the generated suction force allows foreign substances such as dust on the surface to be cleaned to be sucked together with external air through the suction means and removed by the dust collecting device.
  • the motor includes a stator, a rotor rotatably accommodated in the center of the stator to electromagnetically interact with the stator, a first housing covering the stator and the upper portion of the rotor, and the stator and the lower portion of the rotor. It includes a stator and a second housing covering a lower portion of the rotor.
  • the stator includes a stator core, an insulator provided to surround the stator core, and a coil wound around the insulator.
  • the rotor is accommodated in the center of the stator, and includes a rotating shaft, a magnet, a rotor core, one or more bearings rotatably supporting the rotating shaft, and one or more balance weights.
  • Each of the first housing and the second housing includes a bearing seat on which a bearing of the rotor is seated.
  • the first housing and the second housing are coupled by bolts so that the rotor is fixed to the stator.
  • One aspect of the present invention provides a motor having a bearing seating portion for mounting a bearing on an insulator of a stator so that the rotor can be directly assembled to the stator.
  • a motor includes a stator core, an insulator provided to surround the stator core, a stator including a coil wound around the insulator, and electromagnetically interacting with the stator to center a rotating shaft.
  • a rotor configured to rotate, a bearing respectively provided at an upper and a lower portion of the rotary shaft to rotatably support the rotary shaft, and a bearing rotatably seated on at least one of an upper and lower portion of the insulator, and the rotor It includes a bearing seating portion to be assembled to the stator.
  • the bearing seating portion may be provided integrally with the insulator so that a gap between the rotor and the stator may be formed uniformly.
  • the stator may include a rotor receiving portion in which the rotor is accommodated, and the bearing seating portion may be provided integrally with the rotor receiving portion.
  • the bearing may include a first bearing provided at a lower portion of the rotation shaft and a second bearing provided at an upper portion of the rotation shaft.
  • the bearing seating portion may include a first bearing seating portion provided below the insulator to seat the first bearing, and a second bearing seating portion provided above the insulator to seat the second bearing.
  • a wave washer disposed between the first bearing seating portion and the first bearing may be seated on the first bearing seating portion.
  • the first bearing mounting portion may include a separation preventing portion provided under the first bearing mounting portion to prevent separation of the wave washer.
  • the first bearing seating portion may include an opening provided below the first bearing seating portion to have a size corresponding to a diameter of the first bearing.
  • the bearing seating part is provided under the insulator so that the first bearing is seated, and the second bearing is provided on the stator and the rotor, and may be seated in a housing covering the stator and the upper portion of the rotor.
  • a wave washer disposed between the bearing seating portion and the first bearing may be seated on the bearing seating portion.
  • the bearing seating portion may include a detachment preventing unit provided at a portion where the wave washer is seated to prevent detachment of the wave washer.
  • the stator core includes a plurality of teeth, and the gap may be a gap between the plurality of teeth and an outer diameter of the rotor.
  • the performance of the motor may be improved by making the gap between the teeth of the stator core and the outer diameter of the rotor constant.
  • FIG. 1 is a view showing a stick-type cleaner according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of a motor assembly according to an embodiment of the present invention.
  • FIG 3 is an exploded perspective view of a motor assembly according to an embodiment of the present invention.
  • FIG. 4 is an exploded perspective view of a motor according to an embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of a motor according to an embodiment of the present invention.
  • FIG. 6 is a view showing a state in which a gap is formed between the outer diameter of the rotor and a plurality of teeth formed in the stator according to an embodiment of the present invention.
  • FIG. 7 is an exploded perspective view of a motor according to another embodiment of the present invention.
  • Figure 8 is a cross-sectional view of the motor shown in Figure 7;
  • FIG. 9 is an exploded perspective view of a motor according to another embodiment of the present invention.
  • FIG. 10 is a cross-sectional view of the motor shown in FIG. 9;
  • FIG. 11 is an exploded perspective view of a motor assembly according to another embodiment of the present invention.
  • FIG. 12 is an exploded perspective view of the motor shown in FIG. 11.
  • FIG. 13 is a cross-sectional view of the motor shown in FIG. 12;
  • FIGS. 11 to 13 is a view showing a motor in which a wave washer is not seated in a first bearing seat in the motor shown in FIGS. 11 to 13;
  • FIG. 15 is a cross-sectional view of the motor shown in FIG. 14;
  • FIGS. 11 to 13 are exploded perspective views showing a state in which a second bearing seating part is provided in a housing in the motor shown in FIGS. 11 to 13.
  • FIG. 17 is a cross-sectional view of the motor shown in FIG. 16;
  • first and second used in the present specification may be used to describe various elements, but the elements are not limited by the terms, and the terms are It is used only for the purpose of distinguishing one component from other components.
  • a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.
  • the term “and/or” includes a combination of a plurality of related described items or any of a plurality of related described items.
  • FIG. 1 is a view showing a stick-type cleaner according to an embodiment of the present invention.
  • the cleaner may include a stick-type cleaner.
  • the present invention is not limited thereto, and for example, the cleaner may be an upright type cleaner.
  • the cleaner may include a cleaning body 10 and a suction head 20.
  • the vacuum cleaner is powered to generate a suction force inside the cleaning base 10 and the stick 30 connecting the cleaning base 10 and the suction head 20 and the handle 40 connected to the cleaning base 10. It may include a motor assembly 50 for generating.
  • the motor assembly 50 may be applied to various home appliances other than a vacuum cleaner.
  • a stick-type cleaner including the motor assembly 50 will be described.
  • the handle part 40 is a part that is coupled to the cleaning main body 10 and may be provided so that a user can grip and operate the cleaner.
  • a control unit (not shown) may be provided on the handle unit 40 and may be provided so that a user can control the vacuum cleaner.
  • the suction head 30 may be provided under the cleaning body 10 and may be disposed to contact the surface to be cleaned.
  • the suction head 30 may be provided to allow dust or dirt from the surface to be cleaned to flow into the interior of the cleaning main body 10 by a suction force generated from the motor assembly 50 in contact with the surface to be cleaned.
  • the cleaning main body 10 may include a dust collecting device 11 and a driving device 13 provided therein.
  • the dust collecting device 11 may be provided to collect dust or dirt on the surface to be cleaned sucked from the suction head 30.
  • the driving device 13 may include a motor assembly 50 provided to drive the cleaner 1.
  • the motor assembly 50 may generate power to generate a suction force within the cleaning body 10.
  • FIG. 2 is a perspective view of a motor assembly according to an embodiment of the present invention.
  • 3 is an exploded perspective view of a motor assembly according to an embodiment of the present invention.
  • the motor assembly 50 is coupled to the motor 100 including the stator 110 and the rotor 120, and the rotation shaft 121 of the rotor 120 to prevent air It may include an impeller 60 for generating flow, a cover 70 for covering the impeller 60 and guiding the air sucked by the impeller 60, and a controller 80 for controlling the motor 100. have.
  • the impeller 60 may include a shaft coupling portion 61 to which the rotating shaft 121 is coupled. When the rotation shaft 121 is coupled to the shaft coupling portion 61, the impeller 60 may rotate together with the rotation shaft 121.
  • the impeller 60 may include a hub 63 and a plurality of blades 65 protruding from the hub 63 to form a flow of air.
  • the hub 63 may be provided to have a smaller cross-sectional area along the axial direction of the rotation shaft 121 and discharge air introduced in the axial direction as the impeller 60 rotates in the radial direction of the rotation shaft 121. have.
  • the plurality of blades 65 may be provided on the hub 63 and may be provided to rotate together with the hub 63 to form an airflow.
  • the plurality of wings 65 may be provided on the outer surface of the hub 63.
  • the rotor 120 may be disposed on the inner surface of the hub 63, and a plurality of blades 65 may be disposed on the outer surface of the hub 63 to form an airflow.
  • the cover 70 is provided to cover the impeller 60, and guides the air sucked into the suction port 71 by the impeller 60 and the suction port 71 through which air is sucked by the rotation of the impeller 60.
  • a guide member 73 may be included.
  • the motor assembly 50 may further include a control unit 80 provided to control the speed of the motor 100.
  • the controller 80 may be disposed under the motor 100, but is not limited thereto.
  • the control unit 80 may be disposed at various locations depending on the type of the cleaner.
  • FIG. 4 is an exploded perspective view of a motor according to an embodiment of the present invention.
  • 5 is a cross-sectional view of a motor according to an embodiment of the present invention.
  • 6 is a view showing a state in which a gap is formed between a plurality of teeth formed in the stator and the outer diameter of the rotor according to an embodiment of the present invention.
  • the motor 100 may include a stator 110 and a rotor 120.
  • the stator 110 may include a stator core 111, an insulator 113 provided to surround the stator core 111, and a coil 117 wound around the insulator 113.
  • a rotor accommodating portion 116 in which the rotor 120 is accommodated may be provided in the central portion of the insulator 113 that is the central portion of the stator 110.
  • the stator core 111 may include a plurality of teeth 112 (see FIG. 6 ), and the coil 117 may be wound around the insulator 113 at a position corresponding to the plurality of teeth 112.
  • the insulator 113 is provided to surround the stator core 111 and may be made of a material having electrical insulation.
  • the insulator 113 may include a bearing seat 200 on which the bearings 124 and 125 of the rotor 120 are rotatably seated. A description of the bearing seat 200 will be given below.
  • the coil 117 is an insulator 113 at a position corresponding to each of the plurality of teeth 112 formed on the stator core 111 while being coupled to the stator core 111 so that the insulator 113 surrounds the stator core 111 ) Can be wound.
  • the stator 110 may be configured to generate a magnetic flux when a current is applied to the coil 117.
  • the rotor 120 may be configured to rotate by electromagnetically interacting with the stator 110.
  • the rotor 120 may include a rotating shaft 121, a rotor core 122, a magnet 123, one or more bearings 124 and 125, and one or more balance weights 126.
  • the rotation shaft 121 may be provided to rotate while the rotor 120 electromagnetically interacts with the stator 110.
  • the rotor core 122 may be provided to surround a part of the rotating shaft 121, and the magnet 123 may be provided to surround the rotor core 122.
  • the bearings 124 and 125 are provided below the rotation shaft 121 to support the rotation shaft 121 so that the rotation shaft 121 is rotatably supported, and the rotation shaft 121 is provided above the rotation shaft 121. It may include a second bearing 125 to be rotatably supported.
  • the first bearing 124 may be rotatably seated on the first bearing seating portion 210 provided under the insulator 113.
  • the second bearing 125 may be rotatably seated on the second bearing seating portion 220 provided on the insulator 113.
  • the bearing seating portions 200 provided respectively on the lower and upper portions of the insulator 113 will be described below.
  • the balance weight 126 may be provided at the upper and lower portions of the rotor 120 in the axial direction of the rotor core 122 and the magnet 123, respectively.
  • the balance weight 126 may be used as a structure for balancing when there is an unbalance in the rotor 120.
  • the motor 100 may further include a wave washer 140 disposed between the first bearing seat 210 and the first bearing 124 on which the first bearing 124 is rotatably seated.
  • the wave washer 140 may apply a preload to the first bearing 124.
  • the insulator 113 may include a bearing seating portion 200 provided on at least one of an upper and a lower portion of the insulator 113 and on which the bearings 124 and 125 are rotatably seated.
  • the bearing seat 200 is provided integrally with the insulator 113 so that the rotor 120 may be directly assembled to the stator 110.
  • the bearing seating portion 200 is provided under the insulator 113 and provided at the first bearing seating portion 210 on which the first bearing 124 is rotatably seated, and the second bearing 125 provided on the upper portion of the insulator 113. ) May include a second bearing seating portion 220 that is rotatably seated.
  • the bearing seat 200 is provided integrally with the insulator 113, the rotor 120 can be directly assembled to the stator 110 by the insulator 113 without any other structure.
  • the rotor 120 is directly assembled to the stator 110 by the bearing seating part 200, since the number of assembly steps for fixing the rotor 120 to the stator 110 is reduced, as shown in FIG. 6,
  • the gap G between the teeth 112 of the stator 110 and the outer diameter of the rotor 120 may be constant. If the gap G between the teeth 112 of the stator 110 and the outer diameter of the rotor 120 is constant, the performance of the motor 100 may be improved.
  • the bearing seat 200 integrally provided with the insulator 113 may be integrally provided with the rotor receiving portion 116.
  • the first bearing seating portion 210 on which the wave washer 140 is seated together with the first bearing 124 may include a departure preventing portion 211 to prevent the wave washer 140 from being separated.
  • FIG. 7 is an exploded perspective view of a motor according to another embodiment of the present invention. 8 is a cross-sectional view of the motor shown in FIG. 7.
  • the bearing seat 200 on which the bearings 124 and 125 are seated may include a first bearing seat 210 and a second bearing seat 220.
  • the first bearing seating part 210 may be provided integrally with the insulator 113 under the insulator 113.
  • the first bearing 124 may be rotatably supported on the first bearing seat 210.
  • the wave washer may not be seated on the first bearing seating portion 210. Since the wave washer is not seated on the first bearing seat 210, the first bearing seat 210 may include an opening 213.
  • the opening 213 may be provided so that a position at which the separation prevention part 211 of the first bearing seat 210 shown in FIGS. 4 to 5 is formed is opened.
  • the second bearing seating portion 220 may be integrally provided with the insulator 113 on the top of the insulator 113.
  • the second bearing 125 may be rotatably supported on the second bearing seating part 220.
  • FIG. 9 is an exploded perspective view of a motor according to another embodiment of the present invention. 10 is a cross-sectional view of the motor shown in FIG. 9.
  • the bearing seating portion 200 on which the bearings 124 and 125 are seated includes a first bearing seating portion 210 on which the first bearing 124 is seated, and a second bearing ( 125) may include a second bearing seating portion 133 to be seated.
  • the first bearing seating part 210 may be provided integrally with the insulator 113 under the insulator 113.
  • the first bearing 124 may be rotatably supported on the first bearing seat 210.
  • the wave washer 140 may be mounted on the first bearing mounting portion 210.
  • the wave washer 140 may be disposed between the first bearing seat 210 and the first bearing 124.
  • the first bearing seating portion 210 may include a separation preventing portion 211 to prevent separation of the wave washer 140.
  • a housing 130 covering the upper portions of the stator 110 and the rotor 120 may be provided on the stator 110 and the rotor 120.
  • the housing 130 may include a first coupling portion 131 coupled to the insulator 113 by a fastening member such as a bolt, and a second bearing seating portion 133 on which the second bearing 125 is seated. .
  • the second bearing 125 may be rotatably supported on the second bearing seat 133.
  • the insulator 113 may include a second coupling portion 118 coupled to the first coupling portion 131 of the housing 130.
  • the lower portion of the rotor 120 may be directly assembled to the stator 110 by the first bearing seat 210 integrally provided with the insulator 113.
  • the upper portion of the rotor 120 may be assembled to the stator 110 by the second bearing seating portion 133 formed in the housing 130. Since the lower portion of the rotor 120 is directly assembled to the stator 110, the gap G between the teeth 112 of the stator 110 and the outer diameter of the rotor 120 may be constant (see FIG. 6). If the gap G between the teeth 112 of the stator 110 and the outer diameter of the rotor 120 is constant, the performance of the motor 100 may be improved.
  • the wave washer 140 is seated on the first bearing seating portion 210 so that the first bearing seating portion 210 is shown to include a separation preventing portion 211, but the first bearing seating portion 210 The wave washer 140 may not be seated on and the first bearing seating portion 210 may include an opening 213. (See Figs. 7 to 8)
  • FIG. 11 is an exploded perspective view of a motor assembly according to another embodiment of the present invention.
  • 12 is an exploded perspective view of the motor shown in FIG. 11.
  • 13 is a cross-sectional view of the motor shown in FIG. 12.
  • the motor assembly 50 is coupled to the motor 100 including the stator 110 and the rotor 120, and the rotation shaft 121 of the rotor 120 It may include an impeller 60 for generating flow, a cover 70 for covering the impeller 60 and guiding the air sucked by the impeller 60, and a controller 80 for controlling the motor 100. have.
  • Other configurations except for some configurations of the motor 100 may be the same as those of the motor assembly 50 illustrated in FIGS. 2 to 3.
  • the motor 100 may include a stator 110, a rotor 120, and a bearing seat 300 that is assembled to at least one of an upper and a lower portion of the stator 110.
  • the bearing seating portion 300 may be assembled to the rotor receiving portion 116 of the insulator 113.
  • the bearing seating portion 300 may include a first bearing seating portion 310 assembled below the insulator 113 and a second bearing seating portion 320 assembled above the insulator 113.
  • the diameter of the bearing seat 300 may be smaller than the diameter of the stator 110 and may be larger than the diameter of the rotor 120.
  • the bearing seating part 300 may include a plurality of protrusions 114 and 115 for assembly with the insulator 113.
  • the insulator 113 may include a plurality of assembly grooves 311 and 321 into which a plurality of protruding protrusions 114 and 115 are inserted and assembled.
  • the first bearing 124 may be seated on the first bearing seat 310 so as to be rotatably supported.
  • the second bearing 125 may be seated on the second bearing seat 320 so as to be rotatably supported.
  • the plurality of protrusions 114 and 115 includes a plurality of first protrusions 114 provided under the insulator 113 and a plurality of second protrusions 115 provided at the top of the insulator 113 can do.
  • the plurality of assembly grooves 311 and 321 include a plurality of first assembly grooves 311 provided in the first bearing seating portion 310 and a plurality of second assembly grooves provided in the second bearing seating portion 320 ( 321).
  • the first bearing seating portion 310 may be assembled under the insulator 113 by inserting a plurality of first protrusions 114 into the plurality of first assembly grooves 311.
  • the second bearing seating portion 320 may be assembled on the insulator 113 by inserting a plurality of second protrusions 115 into the plurality of second assembly grooves 321. Accordingly, the rotor 120 may be fixed to the stator 110 by the first bearing seating portion 310 and the second bearing seating portion 320. Since the first bearing seating portion 310 and the second bearing seating portion 320 having a diameter smaller than the diameter of the stator 110 and larger than the diameter of the rotor 120 are assembled on the lower and upper portions of the insulator 113, The overall size of the motor 100 may be reduced.
  • the motor 100 may further include a wave washer 140 disposed between the first bearing seat 310 and the first bearing 124 on which the first bearing 124 is rotatably seated.
  • the wave washer 140 may apply a preload to the first bearing 124.
  • the first bearing seating portion 310 on which the wave washer 140 is seated together with the first bearing 124 may include a departure preventing portion 313 to prevent the wave washer 140 from being separated.
  • FIG. 14 is a diagram illustrating a motor in which a wave washer is not seated in a first bearing seat in the motor shown in FIGS. 11 to 13.
  • 15 is a cross-sectional view of the motor shown in FIG. 14.
  • the bearing seat 200 on which the bearings 124 and 125 are seated may include a first bearing seat 310 and a second bearing seat 320.
  • the first bearing seating portion 310 may be assembled under the insulator 113.
  • the first bearing 124 may be rotatably supported on the first bearing seat 310.
  • the wave washer may not be seated on the first bearing seating portion 310. Since the wave washer is not seated on the first bearing seat 310, the first bearing seat 310 may include an opening 313.
  • the opening 315 may be provided so that a position at which the departure preventing portion 313 of the first bearing seating portion 310 shown in FIGS. 11 to 13 is formed is opened.
  • the second bearing seating part 320 may be assembled on the insulator 113.
  • the second bearing 125 may be rotatably supported on the second bearing seat 320.
  • FIG. 16 is an exploded perspective view showing a state in which a second bearing seating portion is provided in a housing in the motor shown in FIGS. 11 to 13. 17 is a cross-sectional view of the motor shown in FIG. 16.
  • the bearing seating portion 300 on which the bearings 124 and 125 are seated includes a first bearing seating portion 310 on which the first bearing 124 is seated, and the second bearing ( 125) may include a second bearing seating portion 133 to be seated.
  • the first bearing seating portion 310 may be assembled under the insulator 113.
  • the first bearing 124 may be rotatably supported on the first bearing seat 310.
  • the wave washer 140 may be mounted on the first bearing mounting portion 310.
  • the wave washer 140 may be disposed between the first bearing seat 310 and the first bearing 124.
  • the first bearing seating portion 310 may include a separation preventing portion 313 to prevent separation of the wave washer 140.
  • a housing 130 covering the upper portions of the stator 110 and the rotor 120 may be provided on the stator 110 and the rotor 120.
  • the housing 130 may include a first coupling portion 131 coupled to the insulator 113 by a fastening member such as a bolt, and a second bearing seating portion 133 on which the second bearing 125 is seated. .
  • the second bearing 125 may be rotatably supported on the second bearing seat 133.
  • the insulator 113 may include a second coupling portion 118 coupled to the first coupling portion 131 of the housing 130.
  • the lower portion of the rotor 120 may be assembled to the stator 110 by the first bearing seating portion 310 assembled to the insulator 113.
  • the upper portion of the rotor 120 may be assembled to the stator 110 by the second bearing seating portion 133 formed in the housing 130. Since the lower portion of the rotor 120 is assembled to the stator 110 by the first bearing seating portion 310 having a diameter smaller than the diameter of the stator 110 and larger than the diameter of the rotor 120, the entire motor 100 The size of can be small.
  • the wave washer 140 is seated on the first bearing seating portion 310 so that the first bearing seating portion 310 is shown to include a separation preventing portion 313, but the first bearing seating portion 310 The wave washer 140 may not be seated on and the first bearing seating portion 310 may include an opening 315. (See Figs. 14 to 15)

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne un moteur comprenant : un noyau de stator ; un isolant destiné à englober le noyau de stator ; un stator comprenant une bobine enroulée sur l'isolant ; un rotor destiné à tourner autour d'un arbre rotatif par interaction électromagnétique avec le stator ; des paliers agencés respectivement au sommet et au fond de l'arbre rotatif de façon à supporter de manière rotative l'arbre rotatif ; et une unité de montage de palier qui est disposée au sommet et/ou au fond de l'isolant de telle sorte que le palier est monté rotatif sur celle-ci, qui permet au rotor d'être assemblé sur le stator.
PCT/KR2020/008591 2019-09-24 2020-07-01 Moteur WO2021060676A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0117258 2019-09-24
KR1020190117258A KR20210035457A (ko) 2019-09-24 2019-09-24 모터

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WO2021060676A1 true WO2021060676A1 (fr) 2021-04-01

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Citations (5)

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JPH05153761A (ja) * 1990-12-14 1993-06-18 Sony Corp ブラシレスモータ
JPH08256464A (ja) * 1994-12-30 1996-10-01 Samsung Electro Mech Co Ltd ホルダー一体型ステータコアを有するブラシレスモーター
JP2005341640A (ja) * 2004-05-24 2005-12-08 Koyo Seiko Co Ltd 電動機のステータ
JP2015126583A (ja) * 2013-12-26 2015-07-06 日本電産テクノモータ株式会社 インナーロータ型モータ
WO2018097167A1 (fr) * 2016-11-28 2018-05-31 パナソニックＩｐマネジメント株式会社 Moteur

Patent Citations (5)

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