WO2017196156A1 - 로터 및 이를 포함하는 모터 - Google Patents

로터 및 이를 포함하는 모터 Download PDF

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Publication number
WO2017196156A1
WO2017196156A1 PCT/KR2017/005016 KR2017005016W WO2017196156A1 WO 2017196156 A1 WO2017196156 A1 WO 2017196156A1 KR 2017005016 W KR2017005016 W KR 2017005016W WO 2017196156 A1 WO2017196156 A1 WO 2017196156A1
Authority
WO
WIPO (PCT)
Prior art keywords
wing
center
cover
angle
group
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2017/005016
Other languages
English (en)
French (fr)
Korean (ko)
Inventor
유영재
임형빈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Innotek Co Ltd
Original Assignee
LG Innotek Co Ltd
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
Priority claimed from KR1020160058837A external-priority patent/KR102582435B1/ko
Priority claimed from KR1020160071820A external-priority patent/KR102587579B1/ko
Application filed by LG Innotek Co Ltd filed Critical LG Innotek Co Ltd
Priority to EP17796456.6A priority Critical patent/EP3457543B1/en
Priority to JP2018559334A priority patent/JP7175767B2/ja
Priority to US16/099,795 priority patent/US11190079B2/en
Priority to CN201780029692.4A priority patent/CN109155571B/zh
Publication of WO2017196156A1 publication Critical patent/WO2017196156A1/ko
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
    • 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
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Definitions

  • Embodiments relate to a rotor and a motor comprising the same.
  • a vehicle In general, a vehicle is provided with a starter motor for driving the engine and an alternator for generating electricity using the rotational force of the engine.
  • the starter motor rotates the engine when the battery is powered.
  • the alternator rotates the rotor by the driving force of the engine to generate AC power.
  • the generated power is charged to the battery using a stop value or the like.
  • Both the starter motor and the alternator are composed of a stator and a rotor, so the structure is very similar. In other words, it can be operated by a generator or by a motor depending on whether a force or power is applied.
  • BSG Belt driven Starter and Generator
  • the motor Since the motor generates heat during rotational operation, it is important to discharge the heat quickly to the outside to prevent the motor from degrading. In particular, it is more important when the motor rotates at a high speed, such as a BSG motor which simultaneously performs a starter motor and an alternator function.
  • the noise of the motor is also an important factor determining the performance of the motor, it is important to minimize the noise.
  • an embodiment is to solve the above problems, and to provide a rotor and a motor including the same that can minimize the torque loss or noise generation of the motor while ensuring a sufficient flow rate for cooling.
  • Embodiments to be solved by the embodiments are not limited to the above-mentioned problems, and other problems not mentioned herein will be clearly understood by those skilled in the art from the following description.
  • An embodiment includes a rotor core and a cover disposed on the rotor core, wherein the cover includes a body portion and a plurality of wings formed on the body portion, and the wing portion is circular and has an outer boundary and a circular shape. Disposed between a curved inner boundary, wherein the wing includes an inner portion and an outer portion, the inner portion forms a first inlet angle at a first point, a first outlet angle at a second point, and the outer portion is A second inlet angle at a second point, a second outlet angle at a third point, wherein the first point is located at the inner boundary, and the second point is disposed between the outer boundary and the inner boundary. Located in the middle boundary of the circular curve, the third point may provide a rotor located in the outer boundary.
  • the outer boundary, the inner boundary and the intermediate boundary may have the same center.
  • the first point is an intersection of the center line between the leading edge and the trailing edge and the inner boundary
  • the second point is an intersection of the middle boundary and the center line
  • the third point is the outer boundary and the center line. It may be the intersection of.
  • the first entrance angle may be an angle between a tangent of the center line and a tangent of the inner boundary at the first point.
  • the first outlet angle may be a straight line connecting the innermost end of the wing portion with the second point and a tangent angle of the tangent of the intermediate boundary at the second point.
  • the second entrance angle may be an angle between a tangent line of the center line and a tangent line of the middle boundary at the second point.
  • the second outlet angle may be an angle between tangents of the outer boundary at the center line and the third point.
  • the cover may include a first cover disposed on either side of the rotor core and a second cover disposed on the other side of the rotor core.
  • At least one of the number and position of the wing portions of the first cover may be different from the number or position of the wing portions of the second cover.
  • At least one of the first inlet angle, the first outlet angle, the second inlet angle, and the second outlet angle of the vane portion of the first cover is equal to the vane portion of the second cover. It may be different from the first inlet angle or the first outlet angle or the second inlet angle or the second outlet angle.
  • the position of the intermediate boundary of the wing portion of the first cover may be different from the position of the intermediate boundary of the wing portion of the second cover.
  • the height of at least a portion of the inner portion of the wing portion is formed to increase toward the intermediate boundary side
  • the height of the outer portion of the wing portion may be formed the same from the intermediate boundary to the outer boundary.
  • the radius of the middle boundary may be a value obtained by adding a radius of the inner boundary to 50% to 70% of a difference value of the radius of the inner boundary from the radius of the outer boundary.
  • the second inlet angle may be 50 ° to 70 °
  • the first outlet angle may be 60 ° to 80 °
  • the second outlet angle may be 50 ° to 70 °.
  • Another embodiment includes a rotor including a rotating shaft, a hole in which the rotating shaft is disposed, and a stator disposed outside the rotor, wherein the rotor includes a rotor core and a cover disposed on the rotor core.
  • the cover includes a body portion and a plurality of wing portions formed on the body portion, wherein the wing portion is disposed between a circular curved outer boundary and a circular curved inner boundary, the wing portion includes an inner portion and an outer portion,
  • the inner portion forms a first inlet angle at a first point, the first outlet angle at a second point, the outer portion forms a second inlet angle at the second point, and the second outlet at a third point.
  • An angle wherein the first point is located at the inner boundary, and the second point is located at an intermediate boundary which is a circular curve disposed between the outer boundary and the inner boundary.
  • the third point may provide a motor located at the outer boundary.
  • Another embodiment includes a rotor core and a cover disposed on the rotor core, wherein the cover includes a body portion and a wing portion formed on the body portion, the wing portions being adjacent to each other, the reference wing, and the reference wing. And a wing group including a first wing adjacent to and a second wing, wherein the reference wing is disposed between the first wing and the second wing, and between the center of the first wing and the center of the reference wing. The distance of may provide a rotor different from the distance between the center of the second wing and the center of the reference wing.
  • first reference line connecting the center of the reference blade and the center of the cover in the radial direction
  • second reference line connecting the center of the first wing and the center of the cover in the radial direction
  • third reference connecting the center of the second wing and the center of the cover, and the first angle between the first reference line and the second reference line may be different from the second angle between the first reference line and the third reference line.
  • the wing portion includes 13 wings, and the first and second angles may be 17 ° in sum.
  • the first angle is 6 °
  • the second angle may be 11 °.
  • the first wing and the second wing may be disposed between an inner boundary passing through the innermost end of the reference wing and an outer boundary passing through the outermost end of the reference wing in the circumferential direction.
  • the cover may include a first cover disposed on either side of the rotor core and a second cover disposed on the other side of the rotor core.
  • At least one of the number and positions of the wings of the wings of the first cover may be different from the number or positions of the wings of the wings of the second cover.
  • the wing portion may include an inclined surface at the top.
  • the shape of the reference wing, the shape of the first wing and the shape of the second wing may be the same.
  • the wing group includes a plurality, and at least two of the wing groups may be disposed at different distances in the circumferential direction.
  • the plurality of wing groups includes a reference wing group, a first wing group, and a second wing group adjacent to each other, the first wing group is disposed on either side of the reference wing group, The second wing group may be disposed on the other side of the reference wing group, and the first wing group and the second wing group may be disposed at different distances in a circumferential direction with respect to the reference wing group.
  • a fourth reference line connecting the center of the reference wing group and the center of the cover
  • a fifth reference line connecting the center of the first wing group and the center of the cover, and the second wing group.
  • the third reference angle of the fourth reference line and the fifth reference line may be different from the fourth reference angle of the fourth reference line and the sixth reference line.
  • the center of the reference wing group is a radial center of the wing disposed in the center of the plurality of wings included in the reference wing group, the center of the first wing group a plurality of included in the first wing group Radial center of the wing disposed in the center of the two wings, the center of the second wing group may be a radial center of the wing disposed in the center of the plurality of wings included in the second wing group.
  • the wing portion is composed of four wing groups and one wing, the third angle and the fourth angle may be a sum of 21 °.
  • the third angle is 4 degrees, and the fourth angle may be 17 degrees.
  • the wing portion is composed of a plurality of the wing group and one wing, the one wing may be disposed between the wing group farthest in the circumferential direction.
  • the plurality of wing groups may be arranged at different distances in the circumferential direction.
  • the wing group may include a plurality of wings, and the wings of the plurality of wing groups may have the same number, location, and shape of the wings, respectively.
  • the cover may include a first cover disposed on either side of the rotor core and a second cover disposed on the other side of the rotor core.
  • At least one of the number and positions of the wings of the wings of the first cover may be different from the number or positions of the wings of the wings of the second cover.
  • Another embodiment includes a rotation shaft, a rotor surrounding the rotation shaft, and a stator disposed outside the rotor, wherein the rotor includes a rotor core and a cover disposed on the rotor core, and the cover includes a body part. And a wing formed on the body portion, wherein the wing includes a wing group including a reference wing adjacent to each other, a first wing and a second wing adjacent to the reference wing, and the reference wing includes the first wing. It is disposed between the first wing and the second wing, the distance between the center of the first wing and the center of the reference wing may provide a motor different from the distance between the center of the second wing and the center of the reference wing. .
  • the wing portion is designed to have two inlet angles and two outlet angles based on an intermediate boundary located between the outer boundary and the inner boundary, thereby greatly expanding the design range of the wing, thereby ensuring sufficient flow rate for cooling. It provides an advantageous effect that enables the implementation of the wing that can minimize the torque loss or noise generation of the motor.
  • FIG. 2 is a cross-sectional view of a motor based on A-A of FIG. 1;
  • FIG. 3 is a view showing a process of discharging heat generated in the assembly of the rotor
  • FIG. 4 is a perspective view of a rotor according to an embodiment
  • FIG. 8 is a detailed view of the wing portion shown in FIG.
  • FIG. 9 is a perspective view of a rotor according to another embodiment
  • FIG. 11 is a view showing a wing of the cover
  • FIG. 12 is a view showing anisotropy of the wing of the wing
  • FIG. 13 is a view showing anisotropy of the wing portion
  • FIG. 14 is a view illustrating anisotropy of the wing unit in which the reference wing group is changed in FIG. 13;
  • Figure 16 is a table showing the noise reduction effect due to the anisotropy of the wing group of the wing portion.
  • ordinal numbers such as second and first
  • first and second components may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
  • second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component.
  • FIG. 1 is a view showing a motor according to the embodiment
  • Figure 2 is a view showing a cross-sectional view of the motor based on A-A of FIG.
  • the motor according to the embodiment may include a housing 10, a rotor 20, a rotation shaft 30, and a stator 40.
  • a plurality of through holes 11 and 12 may be disposed on an outer circumferential surface thereof.
  • the pulley 50 When the motor operates as an alternator, the pulley 50 is rotated by the driving of the engine while the rotor 20 is rotated to generate alternating current.
  • the generated alternating current can be converted to direct current and supplied to an external component (such as a battery).
  • the motor when the motor operates as a starter, the pulley 50 rotates while the rotor 20 rotates by an externally applied current, thereby driving an external component (engine or the like).
  • the housing 10 may include a first housing 13 disposed on one side of the stator 30, and a second housing 14 disposed on the other side of the stator 30.
  • the first housing 13 and the second housing 14 include a plurality of through holes 11 and 12 formed along the circumferential direction.
  • the through holes 11 and 12 serve to discharge heat generated inside the motor to the outside.
  • protrusions coupled to the outer surfaces of the stator 30 may be formed, respectively.
  • the rotor 20 may include a rotor core 21, a cover 22, and a first coil 21b.
  • the rotor core 21 rotates inside the stator 30.
  • the magnet may be attached to the inner or outer circumferential surface of the rotor core 211.
  • the stator 30 may include a stator core 31 and a second coil 32 wound around the stator core 31. A portion 31a of the stator core 31 may be exposed between the first housing 13 and the second housing 14. Therefore, heat generated in the stator 30 can be easily discharged to the outside.
  • the present invention is not limited thereto, and the stator 30 may be disposed inside the housing 10.
  • the covers 22 and 23 are coupled to the rotor core 21 to rotate integrally.
  • the first cover 22 and the second cover 23 may be disposed on one side and the other side of the rotor core 21, respectively.
  • the first cover 22 and the second cover 23 each include a protruding wing 200.
  • the wing 200 serves as a cooling fan that generates a gas flow when the rotor 20 rotates.
  • the wing 200 may have a predetermined curvature so as to easily generate a flow of gas.
  • FIG 3 is a view illustrating a process of discharging heat generated in the assembly of the rotor.
  • FIG. 4 is a perspective view of a rotor according to an embodiment.
  • the first cover 22 and the second cover 23 respectively protrude in the axial direction from the body part 100 and the body part 100 covering one side or the other side of the rotor core 21. It may include a wing 200.
  • the cover 22 may be manufactured by molding resin.
  • the body portion 100 and the wing portion 200 may all be formed integrally.
  • Such a structure has advantages in that mass production is easier, manufacturing cost is reduced, and design freedom is higher than the structure in which each part is manufactured and assembled.
  • the body portion 100 may include a ring-shaped edge portion 110 and a central portion 120 recessed with respect to the edge portion 110.
  • the edge portion 110 is formed in a ring shape and a plurality of wing portions 200 may be disposed along the circumferential direction.
  • the wing 200 may be arranged regularly or irregularly.
  • the central portion 120 may be recessed relative to the edge portion 110 as the rotation shaft 40 is inserted therethrough. As the central portion 120 of the body portion 100 is lowered, the height of the belt pulley (50 in FIG. 2) is also lowered, thereby miniaturizing the motor.
  • FIG. 5 illustrates a first cover
  • FIG. 6 illustrates a second cover
  • the number and positions of the wing parts 200 provided on the first cover 22 and the wing parts 200 formed on the second cover 23 may be different.
  • the height H2 of the outer portion 210 of the wing 200 and the height H1 of the inner portion 220 may be formed differently.
  • the height H1 of the inner part 220 may be formed to increase toward the middle boundary 3. That is, a part of the upper edge of the inner portion 220 may be formed to be inclined.
  • the height H2 of the outer portion 210 of the wing 200 may be formed to be the same from the middle boundary 3 to the outer boundary 2.
  • the upper edge of the outer portion 210 may be formed horizontally.
  • FIG. 7 is a conceptual view for explaining a wing of the second cover
  • FIG. 8 is a detailed view of the wing of FIG. 7.
  • the wing 200 may be disposed between the circular inner boundary 1 and the outer boundary 2 based on the concentric C. Specifically, each wing 200 may be disposed such that the outermost end is located at the same radius with respect to the concentric (C), and the innermost end is located at the same radius with respect to the concentric (C).
  • the inner boundary 1 and the outer boundary 2 serve as criteria for determining the inlet angle and the outlet angle of the wing 200.
  • the wing unit 200 of the motor sets the additional inlet and outlet angles based on the intermediate boundary (3) located between the inner boundary (1) and the outer boundary (2) relative to the concentric (C) It has a configuration.
  • the wing 200 may be divided into an outer portion 210 positioned outside and an inner portion 220 positioned inside thereof based on the intermediate boundary 3.
  • the outer portion 210 has an entrance angle and an exit angle based on the intermediate boundary 3 and the outer boundary 2.
  • the inner part 220 has an inlet angle and an outlet angle based on the intermediate boundary 3 and the inner boundary 1.
  • the wing portion 200 of the motor according to the embodiment may be implemented by setting two inlet angles and two outlet angles.
  • the inner part 220 forms the first entrance angle IR1 at the first point P1 located at the inner boundary 1, and the second portion P2 at the second point P2 located at the intermediate boundary 3.
  • One exit angle OR1 can be formed.
  • the first point P1 may include a cord line M and an inner boundary 1 between the leading edge 201 and the trailing edge 202 of the wing 200. Can mean an intersection.
  • the second point P2 may mean an intersection point of the intermediate boundary 3 and the center line M.
  • the first entrance angle IR1 may correspond to the angle between the tangent L1 of the inner boundary 1 and the tangent L2 of the center line M at the first point P1.
  • the first exit angle OR1 is a straight line S connecting the innermost end P4 of the wing 200 and the second point P2 and a dotted line of the intermediate boundary 3 at the second point P2. It may correspond to the angle of inclination with (L3).
  • the outer portion 210 forms the second inlet angle IR2 at the second point P2, and the second outlet angle OR2 is formed at the third point P3 located at the outer boundary 2.
  • the third point P3 may be an intersection with the center line M and the outer boundary 2.
  • the second entrance angle IR2 may correspond to the angle between the tangent L3 of the middle boundary 3 and the tangent L4 of the center line M at the second point P2.
  • the second outlet angle OR2 may correspond to the intersecting angle of the tangent L5 of the outer boundary 2 at the center line M and the third point P3.
  • the wing portion 200 of the motor adds an intermediate boundary (3) in addition to the inner boundary (1) and the outer boundary (2), which is a reference for setting the inlet and outlet angles,
  • the design range can be greatly expanded.
  • the wing portion 200 has a configuration that can extend the design range even more by changing the position of the intermediate boundary 3 and the corresponding inlet and outlet angles corresponding thereto.
  • the configuration of the wing unit 200 has a very advantageous advantage in making an optimal design that can reduce the torque loss and noise generation of the motor due to the wing unit 200 while ensuring a blowing flow rate for cooling. .
  • the positions of the inlet, outlet, and intermediate boundary 3, respectively, are flow rate and torque.
  • Each may be formed differently to implement an optimum value for loss and noise reduction.
  • the radius of the middle boundary 3 (R3 in FIG. 7) is 50% to 70 of the difference value of the radius R2 of the inner boundary 1 at the radius of the outer boundary 2 (R1 in FIG. 7).
  • the second inlet angle IR2 is in the range of 50 ° to 70 °
  • the first outlet angle OR1 is in the range of 60 ° to 80 °. It can be seen that the second outlet angle OR2 minimizes the torque loss relative to the flow rate in the range of 50 ° to 70 °.
  • FIG. 9 is a perspective view of a rotor according to another embodiment.
  • the body part 100 may include a ring-shaped edge portion 110 and a central portion 120 recessed with respect to the edge portion 110.
  • the edge portion 110 is formed in a ring shape and a plurality of wing portions 200 may be disposed along the circumferential direction.
  • the wing 200 may be arranged regularly or irregularly.
  • FIG. 10 is a view showing a cover
  • Figure 11 is a view showing a wing portion of the cover. 10 and 11 clearly illustrate only the main features in order to conceptually clearly understand the embodiments, and as a result, various modifications of the drawings are expected, and the scope of the embodiments is limited by the specific shapes shown in the drawings. It doesn't have to be.
  • the wings 200 formed on the first cover 22 and the wings 200 formed on the second cover 23 may have different numbers and positions.
  • the wing 200 formed in the second cover 23 may be disposed between the circular inner boundary 1 and the outer boundary 2 based on the concentric C. have. Specifically, each wing 200 may be disposed such that the outermost end is located at the same radius with respect to the concentric (C), and the innermost end is located at the same radius with respect to the concentric (C).
  • the inner boundary 1 and the outer boundary 2 serve as criteria for determining the inlet angle and the outlet angle of the wing 200.
  • the wing unit 200 may include a reference wing 210, a first wing 220, and a second wing 230.
  • the three wings 210, 220, and 230 may be one wing group including relatively adjacent wings.
  • the reference wing 210 may be a wing located among the three wings 210, 220, and 230.
  • the first wing 220 may be a wing located on either side of the reference wing 210.
  • the second wing 230 may be a wing located on the other side of the reference wing 210.
  • the first wing 220 and the second wing 230 may be disposed at different positions with respect to the circumferential direction with respect to the reference wing 210. This is to implement the anisotropy of the wing 200.
  • the wings of the wing unit 200 are isotropic, noise may increase due to resonance.
  • the circumferential direction means a circumferential direction based on the concentric C, which is the center of the rotor 20.
  • FIG. 12 is a diagram illustrating anisotropy of the wings of the wings.
  • a line connecting the center P1 of the reference blade 210 and the center C of the cover in the radial direction is referred to as a first reference line L1.
  • the line connecting the center P2 of the first blade 220 and the center C of the cover in the radial direction is referred to as a second reference line L2.
  • the line connecting the center P3 of the second blade 230 and the center C of the cover in the radial direction is referred to as a third reference line L3.
  • 7 shows an imaginary reference line 3 connecting the centers of the wings of the wing 200 in the radial direction.
  • the sum of the angle R1 and the angle R2 may be 17 °.
  • the right angle R1 may be 6 ° and the right angle R2 may be 11 °.
  • the wing unit 200 may include a plurality of wing groups such that the first wing 220, the first wing 220, and the second wing 230 are bundled. As shown in FIG. 7, when the wing parts 200 all include 13 wings, the wing parts 200 may be divided into four wing groups and one wing.
  • FIG. 13 is a diagram illustrating anisotropy of the wing part
  • FIG. 14 is a diagram illustrating anisotropy of the wing part in which the reference wing group is changed in FIG. 13.
  • the wing unit 200 may include a plurality of wing groups 250, 260, and 270.
  • the wing group 250, 260, and 270 refers to a bundle of a plurality of wings 210, 220, and 230 adjacent to each other.
  • These wing groups 250, 260, and 270 may be arranged to have anisotropy.
  • the positions of the first wing group 250 and the second wing group 260 are different.
  • the detailed description is as follows.
  • a line connecting the center P4 of the reference blade group 240 and the center C of the cover in the radial direction is referred to as a fourth reference line L4.
  • the center P3 of the reference wing group 240 refers to the radial center of the first wing 210 located at the center of the three wings 210, 220, and 230 included in the reference wing group 240.
  • the line connecting the center P4 of the first wing group 250 and the center C of the cover in the radial direction is referred to as a fifth reference line L5.
  • the center P4 of the first wing group 250 refers to the radial center of the first wing 210 positioned at the center of three wings 210, 220, and 230 included in the first wing group 250.
  • the line connecting the center P4 of the second wing group 260 and the center C of the cover in the radial direction is referred to as a sixth reference line L6.
  • the center P4 of the second wing group 260 means a radial center of the first wing 210 positioned at the center of three wings 210, 220, and 230 included in the second wing group 260.
  • the sum of the angle R3 and the angle R4 may be 21 °.
  • the angle R3 may be 4 °, and the angle R4 may be 17 °.
  • first wings 220 and the second wings 230 are disposed at different positions in the circumferential direction with respect to the wings 210, 220, and 230 included in the plurality of wing groups 240, 250, and 260, respectively, based on the reference blade 210.
  • Anisotropy can be implemented.
  • all of the wing parts 200 may include 13 wings.
  • it may consist of four wing groups and one wing, and each wing group may include three wings.
  • one wing 270 may be disposed between the wing group farthest in the circumferential direction.
  • the number, location and shape of the wings 210, 220, 230 included in each wing group (240, 250, 260) may be the same.
  • the wings 210, 220, and 230 so that the first wing group 250 overlaps the reference wing group 240 or the second wing group 260.
  • the number, location and shape of the may be the same.
  • all wing groups included in the wing 200 may be arranged at a different distance in the circumferential direction.
  • 15 is a table showing the noise reduction effect due to the anisotropy of the wing of the wing.
  • the angle between the reference angle L1 of the baseline L1 and the second reference line L2, the angle between the first reference line L1, and the third reference line L3 ( R2) was changed to measure noise.
  • the symbol “-” denotes directivity in the circumferential direction.
  • the conventional reference noise is 84.6 dB
  • the noise is reduced as a whole.
  • the noise was 81.8dB, which was reduced by about 3dB compared to the conventional case.
  • Figure 16 is a table showing the noise reduction effect due to the anisotropy of the wing group of the wing portion.
  • the angle R3 of the fourth reference line L4 and the fifth reference line L5, the fourth reference line L4, and the sixth reference line L6 was measured by changing the angle of incidence (R4).
  • the symbol “-” denotes directivity in the circumferential direction.
  • the conventional reference noise is 84.6 dB
  • the noise is greatly reduced as a whole.
  • the noise was 81.1 dB, which was confirmed to be reduced by about 3 dB.
  • SYMBOLS 1 Inner boundary, 2: Outer boundary, 3: Middle boundary, 10: Housing, 11, 12: Through hole, 13: First housing, 14: Second housing, 20: Rotor, 21: Rotor core, 22: First Cover, 23: second cover, 30: rotating shaft, 40: stator, 100: body portion, 200: wing portion, 210: reference wing, 220: first wing, 230: second wing, 240: reference wing group, 250 : First wing group, 260: second wing group

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
PCT/KR2017/005016 2016-05-13 2017-05-15 로터 및 이를 포함하는 모터 Ceased WO2017196156A1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17796456.6A EP3457543B1 (en) 2016-05-13 2017-05-15 Rotor and motor including same
JP2018559334A JP7175767B2 (ja) 2016-05-13 2017-05-15 ロータおよびこれを含むモータ
US16/099,795 US11190079B2 (en) 2016-05-13 2017-05-15 Rotor and motor including same
CN201780029692.4A CN109155571B (zh) 2016-05-13 2017-05-15 转子和包括该转子的电机

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2016-0058837 2016-05-13
KR1020160058837A KR102582435B1 (ko) 2016-05-13 2016-05-13 로터 조립체 및 이를 포함하는 모터
KR1020160071820A KR102587579B1 (ko) 2016-06-09 2016-06-09 로터 조립체 및 이를 포함하는 모터
KR10-2016-0071820 2016-06-09

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WO2017196156A1 true WO2017196156A1 (ko) 2017-11-16

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CN112787456B (zh) * 2021-01-22 2022-06-21 恒大恒驰新能源汽车研究院(上海)有限公司 车辆、电机及壳体结构
CN116335948B (zh) * 2023-04-28 2024-03-08 江苏大学流体机械温岭研究院 一种用于消防系统的消防泵

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Also Published As

Publication number Publication date
JP2019515637A (ja) 2019-06-06
EP3457543A1 (en) 2019-03-20
JP7175767B2 (ja) 2022-11-21
CN109155571A (zh) 2019-01-04
US20190140513A1 (en) 2019-05-09
EP3457543A4 (en) 2019-05-22
US11190079B2 (en) 2021-11-30
CN109155571B (zh) 2020-12-29
EP3457543B1 (en) 2020-06-03

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