WO2020019588A1 - 永磁电机、压缩机和空调器 - Google Patents

永磁电机、压缩机和空调器 Download PDF

Info

Publication number
WO2020019588A1
WO2020019588A1 PCT/CN2018/115876 CN2018115876W WO2020019588A1 WO 2020019588 A1 WO2020019588 A1 WO 2020019588A1 CN 2018115876 W CN2018115876 W CN 2018115876W WO 2020019588 A1 WO2020019588 A1 WO 2020019588A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
permanent magnet
rotor
magnet motor
core
Prior art date
Application number
PCT/CN2018/115876
Other languages
English (en)
French (fr)
Inventor
乔正忠
毛临书
邱小华
徐飞
王玉龙
Original Assignee
广东美芝制冷设备有限公司
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 CN201821213287.6U external-priority patent/CN208353101U/zh
Priority claimed from CN201810843967.4A external-priority patent/CN110768420B/zh
Application filed by 广东美芝制冷设备有限公司 filed Critical 广东美芝制冷设备有限公司
Priority to KR1020207033229A priority Critical patent/KR20200143737A/ko
Priority to JP2020564378A priority patent/JP2021523671A/ja
Priority to EP18927601.7A priority patent/EP3793073A4/en
Publication of WO2020019588A1 publication Critical patent/WO2020019588A1/zh
Priority to US17/126,559 priority patent/US11996733B2/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H02K1/165—Shape, form or location of the slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/145—Stator cores with salient poles having an annular coil, e.g. of the claw-pole type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/18—Windings for salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information

Definitions

  • the present application relates to the technical field of household electrical appliances, and in particular, to a permanent magnet motor, a compressor, and an air conditioner.
  • the rare earth permanent magnet motor has the highest power density and highest efficiency.
  • the improvement of power density and efficiency of permanent magnet motors is limited.
  • an object of the present application is to propose a permanent magnet motor, which has a higher power density and operating efficiency, while facilitating the realization of a miniaturized design and reducing costs.
  • Another object of the present application is to propose a compressor for a permanent magnet motor.
  • Another object of the present application is to provide an air conditioner having the compressor.
  • a permanent magnet motor includes a stator including a stator core and a stator winding, the stator core including a plurality of stator teeth, and the plurality of stator teeth along the stator iron.
  • the core is arranged in a circumferential direction, and a stator slot is defined between two adjacent stator teeth, and the stator winding is wound on the stator teeth; a rotor, the rotor and the stator are spaced from each other inside and outside, and the rotor
  • the rotor core includes a rotor core and a permanent magnet embedded in the rotor core.
  • the maximum distance between the cross-section outer contour of the rotor and the center of the cross-section of the rotor is D 1.
  • the axis of the rotor core The length is L, the rated power of the permanent magnet motor is P, and the D 1 , L, and P satisfy: D 1 / L ⁇ 1.7 and P / (D 1 2 ⁇ L) ⁇ 8.5, where P
  • the unit of W is W, and the units of D 1 and L are both cm.
  • the rated power P of the permanent magnet motor is set by setting the maximum distance D 1 between the cross-sectional outer periphery profile of the rotor and the cross-section center of the rotor, and the axial length L of the rotor core 21.
  • D 1 /L ⁇ 1.7 and P / (D 1 2 ⁇ L) ⁇ 8.5 the flat design of the rotor is realized, which is conducive to improving the power density of the permanent magnet motor and achieving the efficiency of the permanent magnet motor.
  • the volume of the permanent magnet motor is reduced, which facilitates the miniaturization of the permanent magnet motor and reduces the cost.
  • the stator is sleeved on the outer side of the rotor, and a maximum distance between a cross-sectional outer contour of the stator and a center of the cross-section of the stator is D 2 , and the D 2 satisfies : D 2 / L ⁇ 3, wherein the unit of D 2 is cm.
  • the stator winding is a concentrated winding, and a conductor of the stator winding is a copper wire.
  • the number of poles of the rotor is Q, and the Q satisfies: Q ⁇ 8.
  • the permanent magnet is made of sintered neodymium iron boron.
  • the stator teeth include a yoke portion and a tooth portion disposed along a radial direction of the stator core, the stator winding is wound on the tooth portion, and two adjacent stators The yoke portions of the teeth are welded or pivotally connected.
  • end plates of the rotor are respectively provided at both ends in the axial direction to limit the permanent magnets moving in the axial direction of the rotor core, and the end plates are pieces of non-magnetic material.
  • a compressor according to an embodiment of the second aspect of the present application includes a permanent magnet motor according to the embodiment of the first aspect of the present application.
  • the operating power of the compressor is improved, and at the same time, the compact design of the compressor can be realized, and the occupied space of the compressor is saved.
  • An air conditioner according to an embodiment of the third aspect of the present application includes a compressor according to the embodiment of the second aspect of the present application.
  • the cooling / heating efficiency of the air conditioner is improved, and the occupied space of the air conditioner is also saved.
  • FIG. 1 is a partial structural schematic diagram of a permanent magnet motor according to an embodiment of the present application
  • FIG. 2 is a sectional view of the permanent magnet motor shown in FIG. 1;
  • FIG. 3 is a sectional view of the rotor shown in FIG. 2;
  • FIG. 4 is a schematic diagram of a power-volume relationship between a permanent magnet motor and a conventional technology permanent magnet motor according to an embodiment of the present application;
  • FIG. 5 is a schematic diagram of another partial structure of the permanent magnet motor shown in FIG. 1;
  • FIG. 6 is still another partial structural diagram of the permanent magnet motor shown in FIG. 1; FIG.
  • FIG. 7 is a sectional view of a compressor according to an embodiment of the present application.
  • Compressor 200 casing 101, air inlet 101a, air outlet 101b, crankshaft 102, compression mechanism section 103,
  • Permanent magnet motor 100 the central axis 100a of the permanent magnet motor,
  • Stator slot 110 stator teeth 111, yoke portion 111a, tooth portion 111b,
  • Rotor 2 rotor core 21, permanent magnet slot 21a, permanent magnet 22,
  • the permanent magnet motor 100 includes a stator 1 and a rotor 2.
  • the stator 1 includes a stator core 11 and a stator winding 12.
  • the stator core 11 includes a plurality of stator teeth 111.
  • the plurality of stator teeth 111 are arranged along a circumferential direction of the stator core 11.
  • a stator is defined between two adjacent stator teeth 111.
  • the slot 110 and the stator winding 12 are wound around the stator teeth 111.
  • the rotor 2 and the stator 1 are spaced from each other inside and outside.
  • the rotor 2 includes a rotor core 21 and a permanent magnet 22 embedded in the rotor core 21.
  • the maximum distance between the cross-section outer contour of the rotor 2 and the center of the cross-section of the rotor 2 is D 1
  • the axial length of the rotor core 21 is L
  • the rated power of the permanent magnet motor 100 is P
  • D 1 , L, and P satisfy: D 1 /L ⁇ 1.7, and P / (D 1 2 ⁇ L) ⁇ 8.5, wherein the unit of P is W (watt), and the units of D 1 and L are both cm (centimeter).
  • a plurality of stator teeth 111 may be connected end-to-end along the axial direction of the stator core 11, and the stator winding 12 is located in the stator slot 110.
  • the rotor core 21 may be formed along the rotor core.
  • a plurality of permanent magnet slots 21 a are arranged at intervals in the circumferential direction of 21. Each of the permanent magnet slots 21 a can penetrate both end surfaces of the rotor core 21 in the axial direction of the rotor core 21.
  • a plurality of permanent magnets 22 can be correspondingly embedded in multiple ends. In each of the permanent magnet slots 21a, at least one permanent magnet 22 is embedded in each permanent magnet slot 21a to form a magnetic pole.
  • the cross-sectional profile of the outer rotor core 21 may be formed in a substantially circular cross-section center of the rotor 2 may be the center of the circular, D 1 may be the outer contour of the cross section of the rotor core 21 of maximum diameter, D 1 and
  • the axial length L of the rotor core 21 satisfies D 1 /L ⁇ 1.7 (“1.7” is a dimensionless coefficient), to a certain extent, the flatness of the rotor 2 is improved, and the flat design of the rotor 2 is realized. It is beneficial to improve the power density of the permanent magnet motor 100, thereby achieving the efficiency of the permanent magnet motor 100.
  • the volume of the magnet motor 100 and the permanent magnet motor 100 of the present application can be reduced by about 10%, and further, the miniaturization design of the permanent magnet motor 100 is realized on the premise of ensuring the efficient operation of the permanent magnet motor 100, and the The cost, especially the material cost of the permanent magnet motor 100 is reduced.
  • the ratio of its rated power P to (D 1 2 ⁇ L) can be a fixed value; “rated power P” can refer to the permanent magnet motor 100 applied to the compressor 200, compression When the machine 200 is applied to an air conditioner, the input power of the permanent magnet motor 100 under the rated cooling condition of the air conditioner; “multiple” means two or more.
  • the maximum distance D 1 between the cross-sectional peripheral contour of the rotor 2 and the cross-section center of the rotor 2 and the axial length L of the rotor core 21 The rated power P is set to meet: D 1 /L ⁇ 1.7 and P / (D 1 2 ⁇ L) ⁇ 8.5, which realizes the flat design of the rotor 2 and is conducive to improving the power density of the permanent magnet motor 100 and realizing the permanent magnet.
  • the efficiency of the motor 100 reduces the volume of the permanent magnet motor 100 at the same time, which facilitates miniaturization of the permanent magnet motor 100 and reduces costs.
  • the stator 1 is sleeved on the outer side of the rotor 2.
  • the permanent magnet motor 100 is an inner rotor motor, and the cross-section outer contour of the stator 1 and the cross-section center of the stator 1
  • the maximum distance is D 2
  • D 2 satisfies: D 2 / L ⁇ 3 (“3” is a dimensionless coefficient), where the unit of D 2 is cm, thereby improving the flatness of stator 1 to a certain extent
  • the axial length of the stator core 11 may be substantially equal to the axial length L of the rotor core 21, that is, the axial length of the stator core 11 is equal to the axial length L of the rotor core 21, or the stator There is a difference between the axial length of the core 11 and the axial length L of the rotor core 21, and the difference is small.
  • the rotor 2 can be sleeved outside the stator 1, and the permanent magnet motor 100 is an outer rotor motor at this time.
  • the stator winding 12 is a concentrated winding.
  • the concentrated winding can be applied to a salient pole stator 1.
  • the stator winding 12 is wound into a rectangular coil, and the warp tape is wrapped and shaped. After being dipped and dried, the winding is wound on the stator 1. Therefore, the processing cost of the stator 1 is reduced, and at the same time, it is easy to meet the miniaturization design requirements of the permanent magnet motor 100, and the end length of the concentrated winding is shorter, which can reduce the resistance of the permanent magnet motor 100 and ensure the efficiency of the permanent magnet motor 100.
  • the conductor of the stator winding 12 is a copper wire, and the copper wire has good electrical conductivity and mechanical properties, which is convenient for processing.
  • the number of poles of the rotor 2 is Q, and Q satisfies: Q ⁇ 8.
  • the power of the permanent magnet motor 100 is increased due to the increased number of magnetic poles.
  • the density can be further effectively improved, and at the same time, the copper loss of the permanent magnet motor 100 is reduced, which is conducive to further improving the efficiency of the permanent magnet motor 100, and can reduce the structural size of the rotor 2, and further facilitate the miniaturization of the permanent magnet motor 100.
  • the number of poles Q of the rotor 2 satisfies: 8 ⁇ Q ⁇ 14, thereby avoiding that the iron loss of the permanent magnet motor 100 is significantly increased due to the excessive number of poles of the rotor 2 and the permanent magnet is suppressed to a certain extent.
  • the efficiency of the motor 100 is improved, thereby ensuring the performance of the permanent magnet motor 100.
  • the number of poles Q of the rotor 2 is 10 (for example, as shown in FIG. 1).
  • the number of poles of the stator slot 110 and the rotor 2 may be set in other forms.
  • the permanent magnet 22 is made of sintered neodymium-iron-boron, so that the permanent magnet 22 has excellent magnetic properties, and the use reliability of the permanent magnet 22 is guaranteed.
  • the stator teeth 111 include a yoke portion 111 a and a tooth portion 111 b provided along a radial direction of the stator core 11, and the yoke portions 111 a of the plurality of stator teeth 111 are connected end to end in order.
  • a ring-shaped stator yoke is formed.
  • the yoke portions 111 a of two adjacent stator teeth 111 can be welded or pivotally connected.
  • the tooth portions 111 b of the plurality of stator teeth 111 are arranged at intervals along the circumferential direction of the permanent magnet motor 100.
  • the winding 12 may be wound on the teeth portion 111 b of the stator teeth 111 so as to be located in the stator slot 110.
  • a circumferential end of the yoke portion 111a of one of the two adjacent stator teeth 111 may be provided with a pivoting protrusion
  • a pivoting opening may be formed at the circumferential end of the yoke portion 111a of the other two adjacent stator teeth 111, and the pivoting protrusion may be fitted into the pivoting opening correspondingly, so that the above-mentioned one of the two adjacent stator teeth 111 One of them can be rotated relative to one of the two adjacent stator teeth 111 around the central axis of the pivot opening within a certain range, so as to facilitate the rapid assembly of the stator core 11 and improve the assembly efficiency of the stator 1.
  • the rotor 2 has end plates 3 at both ends in the axial direction, respectively, to limit the permanent magnet 22 to move in the axial direction of the rotor core 21, and the end plate 3 is a piece of non-magnetic material.
  • the end plate 3 is a piece of non-magnetic material.
  • the movement of 22 realizes the axial limit of the permanent magnet 22 and prevents the permanent magnet 22 from detaching from the rotor core 21, thereby ensuring the structural stability of the rotor 2.
  • the end plate 3 is made of a non-magnetic material.
  • the end plate 3 may be a stainless steel piece, so that the end plate 3 can shield the magnetic flux leakage of the rotor 2.
  • the compressor 200 includes the permanent magnet motor 100 according to the embodiment of the first aspect of the present application.
  • the compressor 200 may be applied to household appliances, such as an air conditioner; the compressor 200 may be a vertical compressor 200; the compressor 200 may be a single-cylinder compressor 200 or a multi-cylinder compressor 200. But it is not limited to this.
  • the compressor 200 may be a single-cylinder compressor 200 and the compressor 200 may be a rotary compressor 200.
  • the compressor 200 may further include a casing 101, a crankshaft 102, and a compression mechanism portion 103.
  • the compression mechanism part 103 and the permanent magnet motor 100 are all provided in the casing 101.
  • An air outlet 101b may be formed on the top of the casing 101, an air inlet 101a may be formed on a peripheral wall of the casing 101, and a crankshaft 102 is provided in the permanent housing.
  • the magneto motor 100 and the compression mechanism section 103 so that when the permanent magnet motor 100 is running, the rotor 1 rotates to drive the compression mechanism section 103 to operate through the crankshaft 102 to realize the suction, compression, and discharge of the refrigerant;
  • the compression mechanism section 103 includes a cylinder 103a and The main bearing 103b and the sub-bearing 103c respectively located at both ends of the cylinder 103a, the compression mechanism portion 103 defines a compression cavity, and the compression structure portion may be formed with an inlet and an outlet respectively communicating with the compression cavity, and a piston 103d is provided in the compression cavity.
  • the eccentric portion of the crankshaft 102 is penetrated in the piston 103d to drive the piston 103d to run eccentrically.
  • the inlet communicates with the air inlet 101a so that the refrigerant flows into the compression cavity through the air inlet 101a and the inlet to perform compression.
  • the end of the rotor 2 of the permanent magnet motor 100 may be provided with a balance weight 104 to achieve dynamic balance of the crankshaft 102.
  • the compressor 200 in the embodiment of the present application by using the above-mentioned permanent magnet motor 100, the operating power of the compressor is improved, and at the same time, the compact design of the compressor can be realized, and the space occupied by the compressor is saved.
  • An air conditioner according to an embodiment of the third aspect of the present application includes a compressor according to the embodiment of the second aspect of the present application.
  • the air conditioner may include a casing, and the compressor may be disposed in the casing.
  • the air conditioner can realize cooling and / or heating.
  • the air conditioner can be a cabinet air conditioner, a wall-mounted air conditioner, a built-in air conditioner, or a window air conditioner.
  • the cooling / heating efficiency of the air conditioner is improved, and the occupied space of the air conditioner is also saved.
  • the permanent magnet motor 100 includes a rotor 1 and a stator 2.
  • the rotor 1 includes a rotor core 11 and ten permanent magnets 12.
  • the cross-sectional outer contour of the rotor core 11 is formed into a circle.
  • the core 11 is formed by stacking a plurality of second electromagnetic steel plates along the axial direction of the permanent magnet motor 100. The measured value of the iron loss when the second electromagnetic steel plate is magnetized to 1.5 T at a frequency of 50 Hz does not exceed 2.5 W / kg; the rotor core 11
  • Ten permanent magnet slots 11 a are formed on the rotor core 11 at intervals along the circumferential direction of the rotor core.
  • each of the permanent magnet slots 11 a can penetrate both end surfaces of the rotor core 11 along the axial direction of the rotor core 11.
  • each permanent magnet 12 is made of sintered neodymium iron boron.
  • the stator 2 is sleeved outside the rotor 1.
  • the stator 2 includes a stator core 21 and a stator winding 22.
  • the stator core 21 is formed by laminating a plurality of first electromagnetic steel plates along the axial direction of the permanent magnet motor 100.
  • the first electromagnetic steel plate is at 50 Hz.
  • the measured iron loss when the frequency is magnetized to 1.5T is 2.3 W / kg;
  • the stator core 21 includes nine stator teeth 211 provided along the circumferential direction of the permanent magnet motor 100, and each stator tooth 211 includes a permanent magnet motor
  • the yoke portion 211 a and the tooth portion 211 b which are opposite to each other in the radial direction of 100 are located on the inner side of the yoke portion 211 a.
  • the tooth portions 211b are arranged at intervals along the circumferential direction of the permanent magnet motor 100.
  • a stator slot 210 is defined between two adjacent stator teeth 211, that is, the stator slots 210 are nine.
  • the stator winding 22 is wound around the tooth portion 211b of the stator teeth 211.
  • the upper part is located in the stator slot 210, the stator winding 22 is a concentrated winding, and the conductor of the stator winding 22 is a copper wire.
  • the stator slot 210 is provided with an insulating member 5 to separate the coil of the stator winding 22 from the stator teeth 211 to achieve insulation.
  • the insulating member 5 may be insulating paper.
  • the maximum distance between the cross-section outer contour of the rotor 2 and the center of the cross-section of the rotor 2 is D 1
  • the axial length of the rotor core 21 is L
  • the rated power of the permanent magnet motor 100 is P
  • the width of the stator 1 The maximum distance between the outer contour of the cross section and the center of the cross section of the stator 1 is D 2.
  • D 1 , L, P, D 2 satisfy: D 1 /L ⁇ 1.7, P / (D 1 2 ⁇ L) ⁇ 8.5, and D 2 / L ⁇ 3, the unit of P is W, and the units of D 1 , L, and D 2 are all cm.
  • the direction “outside” refers to a direction away from the central axis 100a of the permanent magnet motor, and the opposite direction is defined as “inside”; the “axial direction of the permanent magnet motor 100” and the central axis of the permanent magnet motor The extending direction of 100a is parallel.
  • the end plates 3 of the rotor 2 at the axial ends are respectively provided to limit the permanent magnet 22 to move in the axial direction of the rotor core 21, and the end plates 3 are stainless steel pieces. ; Both ends of the stator 2 in the axial direction (for example, the upper and lower ends in FIG.
  • each of the insulating end plates 4 is provided with a plurality of mounting posts 41 spaced apart along the circumferential direction of the stator core 21, and each of the mounting posts 41 may be along the axis of the stator core 21.
  • each mounting hole is respectively formed on the axial end surfaces of the stator core 21, and each mounting hole can be formed by recessing a part of the end surface of the stator core 21, and a plurality of mounting posts 41 One correspondingly fits into a plurality of mounting holes, thereby quickly installing the insulating end plate 4 on the stator core 21.
  • each mounting post 41 may be formed into a cylindrical structure, and a free end of each mounting post 41 may be provided with a guide portion 411, an outer peripheral wall of the guide portion 411 forms a guide surface, and the guide portion 411 may be formed into a circular table structure, so that the guide portion The cross-sectional area of 411 is gradually reduced along the axial direction of the stator core 21 from the end of the guide portion 411 away from the center of the stator core 21 toward the end of the guide portion 411 adjacent to the center of the stator core 21, so that the insulation During the installation process, the guide surface can play a good guiding role, which further improves the installation efficiency of the insulating end plate 4.
  • the permanent magnet motor 100 of the embodiment of the present application compared with the permanent magnet motor of the conventional technology, the corresponding D 1 /L ⁇ 1.5 and P / (D 1 2 ⁇ L) ⁇ 8, the permanent magnet in the present application
  • the power density of the motor 100 can be further effectively improved, thereby effectively improving the efficiency of the permanent magnet motor 100 and facilitating the efficiency of the permanent magnet motor 100.
  • FIG. 1 it can be seen from FIG. 1
  • the (D 1 2 ⁇ L) value corresponding to the permanent magnet motor 100 of the application is smaller than the (D 1 2 ⁇ L) value corresponding to the permanent magnet motor of the conventional technology, so that the permanent magnet motor 100 of the present application has a smaller The volume achieves miniaturization of the permanent magnet motor 100 and reduces costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

一种永磁电机（100）、压缩机（200）和空调器，永磁电机（100）包括定子（1）和转子（2），定子（1）包括定子铁芯（11）和定子绕组（12），转子（2）与定子（1）内外间隔设置，转子（2）包括转子铁芯（21）和嵌设在转子铁芯（21）上的永磁体（22），转子（2）的横截面外周轮廓与转子（2）的横截面中心之间的最大距离为D 1，转子铁芯（21）的轴向长度为L，永磁电机（100）的额定功率为P，D1、L、P满足：D1/L≥1.7、且P/（D1 2×L）≥8.5，其中P的单位为W，D1、L的单位均为cm。

Description

永磁电机、压缩机和空调器
相关申请的交叉引用
本申请基于申请号为201810843967.4、申请日为2018年07月27日的中国专利申请和申请号为201821213287.6、申请日为2018年07月27日的中国专利申请提出，并要求上述中国专利申请的优先权，上述中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及生活电器技术领域，尤其是涉及一种永磁电机、压缩机和空调器。
背景技术
压缩机行业中，稀土永磁电机的功率密度最高、效率最高。然而，相关技术中，永磁电机的功率密度和效率的提升受到了限制。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此，本申请的一个目的在于提出一种永磁电机，所述永磁电机具有较高的功率密度和运行效率，同时便于实现小型化设计，降低成本。
本申请的另一个目的在于提出永磁电机的压缩机。
本申请的再一个目的在于提出一种具有上述压缩机的空调器。
根据本申请第一方面实施例的永磁电机，包括：定子，所述定子包括定子铁芯和定子绕组，所述定子铁芯包括多个定子齿，多个所述定子齿沿所述定子铁芯的周向布置，相邻两个所述定子齿之间限定出定子槽，所述定子绕组绕设在所述定子齿上；转子，所述转子与所述定子内外间隔设置，所述转子包括转子铁芯和嵌设在所述转子铁芯上的永磁体，所述转子的横截面外周轮廓与所述转子的横截面中心之间的最大距离为D 1，所述转子铁芯的轴向长度为L，所述永磁电机的额定功率为P，所述D 1、L、P满足：D 1/L≥1.7、且P/(D 1 2×L)≥8.5，其中所述P的单位为W，所述D 1、L的单位均为cm。
根据本申请实施例的永磁电机，通过将转子的横截面外周轮廓与转子的横截面中心之间的最大距离D 1、转子铁芯21的轴向长度L，永磁电机的额定功率P设置为满足：D 1/L≥1.7、且P/(D 1 2×L)≥8.5，实现了转子的扁平化设计，有利于提升永磁电机的功 率密度，实现永磁电机的高效化，同时减小了永磁电机的体积，便于实现永磁电机的小型化，降低成本。
根据本申请的一些实施例，所述定子套设在所述转子的外侧，所述定子的横截面外周轮廓与所述定子的横截面中心之间的最大距离为D 2，所述D 2满足：D 2/L≥3，其中所述D 2的单位为cm。
根据本申请的一些实施例，所述定子绕组为集中式绕组，所述定子绕组的导体为铜导线。
根据本申请的一些实施例，所述转子的极数为Q，所述Q满足：Q≥8。
根据本申请的一些实施例，当所述定子槽为9个时，所述Q满足：Q＝8或者Q＝10。
根据本申请的一些实施例，所述永磁体采用烧结钕铁硼制成。
根据本申请的一些实施例，所述定子齿包括沿所述定子铁芯的径向设置的轭部和齿部，所述定子绕组绕设在所述齿部上，相邻两个所述定子齿的所述轭部之间焊接相连、或可枢转地相连。
根据本申请的一些实施例，所述转子的轴向两端分别设有端板，以限定所述永磁体沿所述转子铁芯的轴向移动，所述端板为不导磁材料件。
根据本申请第二方面实施例的压缩机，包括根据本申请上述第一方面实施例的永磁电机。
根据本申请实施例的压缩机，通过采用上述的永磁电机，提升了压缩机的运行功率，同时可以实现压缩机的小型化设计，节省压缩机的占用空间。
根据本申请第三方面实施例的空调器，包括根据本申请上述第二方面实施例的压缩机。
根据本申请实施例的空调器，通过采用上述的压缩机，提升了空调器的制冷/制热效率，同时节省了空调器的占用空间。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本申请实施例的永磁电机的局部结构示意图；
图2是图1中所示的永磁电机的剖视图；
图3是图2中所示的转子的剖视图；
图4是根据本申请实施例的永磁电机与传统技术永磁电机的功率-体积关系示意图；
图5是图1中所示的永磁电机的另一个局部结构示意图；
图6是图1中所示的永磁电机的再一个局部结构示意图；
图7是根据本申请实施例的压缩机的剖视图。
附图标记：
压缩机200、机壳101、进气口101a、出气口101b、曲轴102、压缩机构部103、
气缸103a、主轴承103b、副轴承103c、活塞103d、平衡块104、
永磁电机100、永磁电机的中心轴线100a、
定子1、定子铁芯11、定子绕组12、
定子槽110、定子齿111、轭部111a、齿部111b、
转子2、转子铁芯21、永磁体槽21a、永磁体22、
端板3、
绝缘端板4、安装柱41、导向部411、绝缘件5。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
下面参考图1-图6描述根据本申请第一方面实施例的永磁电机100。
如图1-图6所示，根据本申请实施例的永磁电机100，包括定子1和转子2。
定子1包括定子铁芯11和定子绕组12，定子铁芯11包括多个定子齿111，多个定子齿111沿定子铁芯11的周向布置，相邻两个定子齿111之间限定出定子槽110，定子绕组12绕设在定子齿111上。转子2与定子1内外间隔设置，转子2包括转子铁芯21和嵌设在转子铁芯21上的永磁体22，转子2的横截面外周轮廓与转子2的横截面中心之间的最大距离为D 1，转子铁芯21的轴向长度为L，永磁电机100的额定功率为P，D 1、L、P满足：D 1/L≥1.7、且P/(D 1 2×L)≥8.5，其中所述P的单位为W(瓦特)，所述D 1、L的单位均为cm(厘米)。
例如，如图1-图4所示，多个定子齿111可以沿定子铁芯11的轴向依次首尾相连，定子绕组12位于定子槽110内；转子铁芯21上可以形成有沿转子铁芯21的周向间隔设置的多个永磁体槽21a，每个永磁体槽21a可以沿转子铁芯21的轴向贯穿转子铁芯 21的两端端面，多个永磁体22可以对应嵌设在多个永磁体槽21a内，使得每个永磁体槽21a内嵌入至少一个永磁体22后以形成一个磁极。
转子铁芯21的横截面外轮廓可以大致形成为圆形，转子2的横截面中心可以为上述圆形的圆心，D 1可以为转子铁芯21的横截面外轮廓的最大直径，D 1与转子铁芯21的轴向长度L之间满足D 1/L≥1.7(“1.7”为无量纲系数)，在一定程度上、提升了转子2的扁平化程度，实现了转子2的扁平化设计，有利于提升永磁电机100的功率密度，从而实现了永磁电机100的高效化。然而，由于D 1/L≥1.7，在一定程度上不便于实现永磁电机100的小型化设计，通过将永磁电机100的额定功率P设置为满足P/(D 1 2×L)≥8.5(“8.5”的单位为W/cm 3)，使得在相同的额定功率的前提下、本申请的转子2的体积较小，从而减小了永磁电机100的体积，相对于传统技术的永磁电机100、本申请的永磁电机100的体积可以降低约10％，进而在保证永磁电机100高效运行的前提下、实现了永磁电机100的小型化设计，降低了永磁电机100的成本，尤其是降低了永磁电机100的材料成本。
其中，对于一台永磁电机100来说，其额定功率P与(D 1 2×L)的比值可以为一固定值；“额定功率P”可以指永磁电机100应用于压缩机200、压缩机200应用于空调器时，空调器额定制冷工况下、永磁电机100的输入功率；“多个”的含义是两个或两个以上。
根据本申请实施例的永磁电机100，通过将转子2的横截面外周轮廓与转子2的横截面中心之间的最大距离D 1、转子铁芯21的轴向长度L，永磁电机100的额定功率P设置为满足：D 1/L≥1.7、且P/(D 1 2×L)≥8.5，实现了转子2的扁平化设计，有利于提升永磁电机100的功率密度，实现永磁电机100的高效化，同时减小了永磁电机100的体积，便于实现永磁电机100的小型化，降低成本。
可选地，如图1和图2所示，定子1套设在转子2的外侧，此时永磁电机100为内转子电机，定子1的横截面外周轮廓与定子1的横截面中心之间的最大距离为D 2，D 2满足：D 2/L≥3(“3”为无量纲系数)，其中所述D 2的单位为cm，从而在一定程度上、提升了定子1的扁平化程度，实现了定子1的扁平化设计，有利于进一步提升永磁电机100的功率密度，实现永磁电机100的高效运行。其中，定子铁芯11的轴向长度可以与转子铁芯21的轴向长度L大致相等，也就是说，定子铁芯11的轴向长度与转子铁芯21的轴向长度L相等，或者定子铁芯11的轴向长度与转子铁芯21的轴向长度L存在差值、且差值很小。
可以理解的是，转子2可以套设在定子1外，此时永磁电机100为外转子电机。
具体地，定子绕组12为集中式绕组，集中式绕组可以应用于凸极式定子1，通常绕制成矩形线圈，经纱带包扎定型，再经浸漆烘干处理后，绕设在定子1上，从而降低定子1的加工成本，同时易于满足永磁电机100的小型化设计需求，而且集中式绕组的端部长度较短，可以减小永磁电机100的电阻，保证永磁电机100的效率。其中，定子绕组12的导体为铜导线，铜导线具有良好的导电性和力学性能，便于加工。
可选地，转子2的极数为Q，Q满足：Q≥8，与传统技术中设置4个或6个磁极的转子2相比，由于增加了磁极个数，使得永磁电机100的功率密度得以进一步有效提升，同时降低了永磁电机100的铜损，有利于进一步实现永磁电机100的高效化，而且可以减小转子2的结构尺寸，便于进一步实现永磁电机100的小型化。
进一步可选地，转子2的极数Q满足：8≤Q≤14，从而避免由于转子2的极数过多、使得永磁电机100的铁损明显上升，导致在一定程度上抑制了永磁电机100的效率的提升，从而保证了永磁电机100的性能。
具体地，当定子槽110为9个时，Q满足：Q＝8或者Q＝10，也就是说，定子槽110为9个、转子2的极数Q为，或者定子槽110为9个，转子2的极数Q为10(例如，如图1所示)。
当然，定子槽110与转子2极数的数量设置还可以为其他形式。例如，定子槽110为12个，转子2的极数Q为14；或者，定子槽110为12个，转子2的极数Q为10。但不限于此。
可选地，永磁体22采用烧结钕铁硼制成，使得永磁体22具有优异的磁性能，保证永磁体22的使用可靠性。
在本申请的一些实施例中，如图1所示，定子齿111包括沿定子铁芯11的径向设置的轭部111a和齿部111b，多个定子齿111的轭部111a依次首尾相连以形成环形的定子轭，相邻两个定子齿111的轭部111a之间可以焊接相连、或者可枢转相连，多个定子齿111的齿部111b沿永磁电机100的周向间隔设置，定子绕组12可以绕设在定子齿111的齿部111b上以位于定子槽110内。其中，当相邻两个定子齿111的轭部111a之间可枢转地相连时，相邻两个定子齿111中的其中一个的轭部111a的周向一端可以设有枢转凸起，相邻两个定子齿111中的另一个的轭部111a的周向一端可以形成有枢转开口，枢转凸起可以对应配合在枢转开口内，使得相邻两个定子齿111中的上述其中一个可以在一定范围内绕枢转开口的中心轴线相对于相邻两个定子齿111中的上述其中一个转动，以便于定子铁芯11的快速组装，提升了定子1的组装效率。
具体地，转子2的轴向两端分别设有端板3，以限定永磁体22沿转子铁芯21的轴 向移动，端板3为不导磁材料件。例如，在图2和图3的示例中，端板3为两个，每个端板3可以均形成为板状结构，端板3可以紧贴转子铁芯21的端面设置，以阻挡永磁体22的移动，实现了永磁体22的轴向限位，避免永磁体22从转子铁芯21上脱离，保证了转子2的结构稳定性。其中，端板3为不导磁材料件，例如端板3可以为不锈钢件，使得端板3可以屏蔽转子2漏磁。
根据本申请第二方面实施例的压缩机200，包括根据本申请上述第一方面实施例的永磁电机100。其中，压缩机200可以应用于家用电器，例如空调器；压缩机200可以为立式压缩机200；压缩机200可以为单缸压缩机200或多缸压缩机200。但不限于此。
例如，如图7所示，压缩机200可以为单缸压缩机200且压缩机200可以为旋转式压缩机200，压缩机200还可以包括机壳101、曲轴102和压缩机构部103，曲轴102、压缩机构部103和永磁电机100均设在机壳101内，机壳101的顶部可以形成有出气口101b，机壳101的周壁上可以形成有进气口101a，曲轴102穿设在永磁电机100和压缩机构部103上，从而永磁电机100运行时、转子1转动以通过曲轴102驱动压缩机构部103运行以实现制冷剂的吸入、压缩和排出；压缩机构部103包括气缸103a和分别位于气缸103a两端的主轴承103b、副轴承103c，压缩机构部103内限定出压缩腔，且压缩结构部上可以形成有与压缩腔分别连通的进口和出口，压缩腔内设有活塞103d，曲轴102的偏心部穿设在活塞103d内以驱动活塞103d偏心运转，进口与进气口101a连通以使制冷剂通过进气口101a和进口流入压缩腔内以进行压缩。其中，永磁电机100的转子2的端部可以设置平衡块104，以实现曲轴102的动平衡。
根据本申请实施例的压缩机200，通过采用上述的永磁电机100，提升了压缩机的运行功率，同时可以实现压缩机的小型化设计，节省压缩机的占用空间。
根据本申请第三方面实施例的空调器，包括根据本申请上述第二方面实施例的压缩机。具体地，空调器可以包括机壳，压缩机可以设在机壳内。空调器可以实现制冷和/或制热，空调器可以为柜式空调、挂壁式空调、嵌入式空调、或窗式空调等。
根据本申请实施例的空调器，通过采用上述的压缩机200，提升了空调器的制冷/制热效率，同时节省了空调器的占用空间。
根据本申请实施例的空调器的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
下面参考图1-图6以一个具体的实施例详细描述根据本申请实施例的永磁电机100。值得理解的是，下述描述仅是示例性说明，而不是对本申请的具体限制。
在本申请的描述中，需要理解的是，术语“中心”、“横向”、“长度”、“上”、“下”、“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
如图1-图6所示，永磁电机100包括转子1和定子2，转子1包括转子铁芯11和十个永磁体12，转子铁芯11的横截面外轮廓形成为圆形，转子铁芯11由多个第二电磁钢板沿永磁电机100的轴向层叠而成，第二电磁钢板在50Hz频率下磁化到1.5T时的铁损测定值不超过2.5W/kg；转子铁芯11上形成有沿转子铁芯11的周向间隔设置的十个永磁体槽11a，每个永磁体槽11a可以沿转子铁芯11的轴向贯穿转子铁芯11的两端端面，十个永磁体12一一对应嵌设在十个永磁体槽11a内，使得十个永磁体12内嵌在转子铁芯11内、转子1的极数Q＝10。其中，每个永磁体12采用烧结钕铁硼制成。
定子2套设在转子1外，定子2包括定子铁芯21和定子绕组22，定子铁芯21由多个第一电磁钢板沿永磁电机100的轴向层叠而成，第一电磁钢板在50Hz频率下磁化到1.5T时的铁损测定值为2.3W/kg；定子铁芯21包括沿永磁电机100的周向设置的九个定子齿211，每个定子齿211均包括沿永磁电机100的径向相对设置的轭部211a和齿部211b，齿部211b位于轭部211a的内侧，多个定子齿211的轭部211a依次首尾相连以形成环形的定子轭，多个定子齿211的齿部211b沿永磁电机100的周向间隔设置，相邻两个定子齿211之间限定出定子槽210，即定子槽210为九个，定子绕组22绕设在定子齿211的齿部211b上以位于定子槽210内，且定子绕组22为集中式绕组，定子绕组22的导体为铜导线。其中，定子槽210内设有绝缘件5，以将定子绕组22的线圈与定子齿211隔开，实现绝缘，绝缘件5可以为绝缘纸。
其中，转子2的横截面外周轮廓与转子2的横截面中心之间的最大距离为D 1，转子铁芯21的轴向长度为L，永磁电机100的额定功率为P，定子1的横截面外周轮廓与定子1的横截面中心之间的最大距离为D 2，D 1、L、P、D 2满足：D 1/L≥1.7、P/(D 1 2×L)≥8.5、且D 2/L≥3，P的单位为W，D 1、L和D 2的单位均为cm。
这里，需要说明的是，方向“外”是指远离永磁电机的中心轴线100a的方向，其相反方向被定义为“内”；“永磁电机100的轴向”与永磁电机的中心轴线100a的延伸方向平行。
如图2、图3、图5和图6所示，转子2的轴向两端分别设有端板3，以限定永磁体22沿转子铁芯21的轴向移动，端板3为不锈钢件；定子2的轴向两端(例如，图5中 的上端和下端)分别设有绝缘端板4，两个绝缘端板4分别安装在定子铁芯21的轴向两端的端面处，每个绝缘端板4形成为绝缘骨架，且每个绝缘端板4上设有沿定子铁芯21的周向间隔设置的多个安装柱41，每个安装柱41可以均沿定子铁芯21的轴向朝向定子铁芯21延伸，定子铁芯21的轴向两端端面上分别形成有多个安装孔，每个安装孔可以由定子铁芯21的部分端面凹入形成，多个安装柱41一一对应配合在多个安装孔内，从而将绝缘端板4快速安装在定子铁芯21上。
其中，每个安装柱41可以形成为圆柱结构，每个安装柱41的自由端可以设有导向部411，导向部411的外周壁形成导向面，导向部411可以形成为圆台结构，使得导向部411的横截面积沿定子铁芯21的轴向、由导向部411的远离定子铁芯21中心的一端朝向导向部411的邻近定子铁芯21中心的一端逐渐减小，使得在绝缘端板4的安装过程中、导向面可以起到良好的导向作用，进一步提升了绝缘端板4的安装效率。
根据本申请实施例的永磁电机100，相比于传统技术的永磁电机中、对应的D 1/L≤1.5、且P/(D 1 2×L)≤8，本申请中的永磁电机100的功率密度得以进一步有效提升从而有效提升了永磁电机100的效率，便于实现永磁电机100的高效化，而且从图4中可以看出，在相同的额定输入功率P 0时，本申请的永磁电机100对应的(D 1 2×L)值相比于传统技术的永磁电机对应的(D 1 2×L)值较小，使得本申请的永磁电机100具有较小的体积，实现了永磁电机100的小型化，降低成本。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (10)

  1. 一种永磁电机，其特征在于，包括：
    定子，所述定子包括定子铁芯和定子绕组，所述定子铁芯包括多个定子齿，多个所述定子齿沿所述定子铁芯的周向布置，相邻两个所述定子齿之间限定出定子槽，所述定子绕组绕设在所述定子齿上；
    转子，所述转子与所述定子内外间隔设置，所述转子包括转子铁芯和嵌设在所述转子铁芯上的永磁体，所述转子的横截面外周轮廓与所述转子的横截面中心之间的最大距离为D 1，所述转子铁芯的轴向长度为L，所述永磁电机的额定功率为P，所述D 1、L、P满足：
    D 1/L≥1.7、且P/(D 1 2×L)≥8.5，其中所述P的单位为W，所述D 1、L的单位均为cm。
  2. 根据权利要求1所述的永磁电机，其特征在于，所述定子套设在所述转子的外侧，所述定子的横截面外周轮廓与所述定子的横截面中心之间的最大距离为D 2，所述D 2满足：D 2/L≥3，其中所述D 2的单位为cm。
  3. 根据权利要求1或2所述的永磁电机，其特征在于，所述定子绕组为集中式绕组，所述定子绕组的导体为铜导线。
  4. 根据权利要求1-3中任一项所述的永磁电机，其特征在于，所述转子的极数为Q，所述Q满足：Q≥8。
  5. 根据权利要求4所述的永磁电机，其特征在于，当所述定子槽为9个时，所述Q满足：Q＝8或者Q＝10。
  6. 根据权利要求1-5中任意一项所述的永磁电机，其特征在于，所述永磁体采用烧结钕铁硼制成。
  7. 根据权利要求1-6中任一项所述的永磁电机，其特征在于，所述定子齿包括沿所述定子铁芯的径向设置的轭部和齿部，所述定子绕组绕设在所述齿部上，相邻两个所述定子齿的所述轭部之间焊接相连、或可枢转地相连。
  8. 根据权利要求1-7中任一项所述的永磁电机，其特征在于，所述转子的轴向两端分别设有端板，以限定所述永磁体沿所述转子铁芯的轴向移动，所述端板为不导磁材料件。
  9. 一种压缩机，其特征在于，包括根据权利要求1-8中任一项所述的永磁电机。
  10. 一种空调器，其特征在于，包括根据权利要求9所述的压缩机。
PCT/CN2018/115876 2018-07-27 2018-11-16 永磁电机、压缩机和空调器 WO2020019588A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020207033229A KR20200143737A (ko) 2018-07-27 2018-11-16 영구 자석 모터, 압축기 및 공기조화기
JP2020564378A JP2021523671A (ja) 2018-07-27 2018-11-16 永久磁石モータ、圧縮機及び空気調和機
EP18927601.7A EP3793073A4 (en) 2018-07-27 2018-11-16 PERMANENT MAGNETIC MOTOR, COMPRESSOR AND AIR CONDITIONING
US17/126,559 US11996733B2 (en) 2018-07-27 2020-12-18 Permanent magnet motor, compressor and air conditioner

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201821213287.6U CN208353101U (zh) 2018-07-27 2018-07-27 永磁电机、压缩机和空调器
CN201821213287.6 2018-07-27
CN201810843967.4A CN110768420B (zh) 2018-07-27 2018-07-27 永磁电机、压缩机和空调器
CN201810843967.4 2018-07-27

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/126,559 Continuation US11996733B2 (en) 2018-07-27 2020-12-18 Permanent magnet motor, compressor and air conditioner

Publications (1)

Publication Number Publication Date
WO2020019588A1 true WO2020019588A1 (zh) 2020-01-30

Family

ID=69180592

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/115876 WO2020019588A1 (zh) 2018-07-27 2018-11-16 永磁电机、压缩机和空调器

Country Status (5)

Country Link
US (1) US11996733B2 (zh)
EP (1) EP3793073A4 (zh)
JP (1) JP2021523671A (zh)
KR (1) KR20200143737A (zh)
WO (1) WO2020019588A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11522427B2 (en) * 2020-08-28 2022-12-06 Emerson Electric Co. Single phase induction motors including aluminum windings and high permeability low coreloss steel
KR20240102496A (ko) * 2022-12-26 2024-07-03 삼성전자주식회사 압축기용 모터

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103633805A (zh) * 2013-05-24 2014-03-12 西安庆安制冷设备股份有限公司 一种小型转子式制冷压缩机用无刷直流电动机
CN104767306A (zh) * 2015-04-29 2015-07-08 南车株洲电力机车研究所有限公司 一种电机转子及其铁心
US20150263573A1 (en) * 2014-03-17 2015-09-17 Anand Sathyan High efficiency internal permanent magnet synchronous electric machine
CN105099113A (zh) * 2015-09-02 2015-11-25 广东美芝制冷设备有限公司 压缩机用永磁电机和具有其的压缩机
CN205846884U (zh) * 2016-06-30 2016-12-28 广东美芝制冷设备有限公司 永磁电机及具有其的压缩机

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69735741T2 (de) * 1996-02-23 2006-09-14 Matsushita Electric Industrial Co., Ltd., Kadoma Motor
US6057613A (en) * 1998-02-04 2000-05-02 Pacific Scientific Company Hybrid stepper motor having optimized torque density
JP2007028714A (ja) * 2005-07-12 2007-02-01 Aichi Steel Works Ltd Ｄｃブラシモータ装置
JP5564885B2 (ja) * 2009-10-08 2014-08-06 株式会社安川電機 永久磁石形回転電機
WO2013026088A1 (en) * 2011-08-19 2013-02-28 Newsouth Innovations Pty Limited Interior permanent magnet machine
JP5899716B2 (ja) * 2011-09-02 2016-04-06 トヨタ自動車株式会社 回転電機のロータ構造
DE102012213465A1 (de) * 2012-07-31 2014-02-06 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Permanentmagnet-Synchronmotor und Servolenkungsanordnung
JP2015002650A (ja) * 2013-06-18 2015-01-05 ダイキン工業株式会社 モータ及びそれを用いた圧縮機
US20160329758A1 (en) * 2015-05-08 2016-11-10 Qm Power, Inc. Magnetically isolated electrical machines
CN108604835B (zh) * 2016-02-02 2020-10-02 三菱电机株式会社 定子及压缩机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103633805A (zh) * 2013-05-24 2014-03-12 西安庆安制冷设备股份有限公司 一种小型转子式制冷压缩机用无刷直流电动机
US20150263573A1 (en) * 2014-03-17 2015-09-17 Anand Sathyan High efficiency internal permanent magnet synchronous electric machine
CN104767306A (zh) * 2015-04-29 2015-07-08 南车株洲电力机车研究所有限公司 一种电机转子及其铁心
CN105099113A (zh) * 2015-09-02 2015-11-25 广东美芝制冷设备有限公司 压缩机用永磁电机和具有其的压缩机
CN205846884U (zh) * 2016-06-30 2016-12-28 广东美芝制冷设备有限公司 永磁电机及具有其的压缩机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3793073A4 *

Also Published As

Publication number Publication date
KR20200143737A (ko) 2020-12-24
EP3793073A4 (en) 2021-08-25
US11996733B2 (en) 2024-05-28
JP2021523671A (ja) 2021-09-02
US20210143690A1 (en) 2021-05-13
EP3793073A1 (en) 2021-03-17

Similar Documents

Publication Publication Date Title
JP3122433B2 (ja) 互い違い積層型リニアモータ用固定子コア
JPWO2007116431A1 (ja) 単相電動機及び密閉型圧縮機
WO2019184392A1 (zh) 电机、压缩机及制冷设备
JP6942246B2 (ja) ロータ、電動機、圧縮機および空気調和装置
WO2022110303A1 (zh) 定子冲片、定子铁芯、电机、压缩机和制冷设备
US11996733B2 (en) Permanent magnet motor, compressor and air conditioner
JP7019033B2 (ja) 電動機、圧縮機および空気調和装置
US20060284509A1 (en) Induction motor
CN112467897A (zh) 电机、压缩机和制冷设备
CN110768420B (zh) 永磁电机、压缩机和空调器
WO2017202319A1 (zh) 永磁同步电机和电动汽车
CN208353101U (zh) 永磁电机、压缩机和空调器
EP4439927A1 (en) Electric motor, compressor, and refrigeration apparatus
KR101811608B1 (ko) 전동기 및 이를 구비한 압축기, 압축기를 구비한 냉장고
CN112564318B (zh) 定子冲片、定子铁芯、电机、压缩机和制冷设备
WO2022208740A1 (ja) モータ、圧縮機および冷凍サイクル装置
CN110912297B (zh) 电机和压缩机
CN112583143A (zh) 定子铁芯、定子、永磁同步电机、压缩机和制冷设备
CN219123999U (zh) 电机、压缩机和制冷设备
CN111697781A (zh) 一种永磁电机及具有其的压缩机和空调器
CN220342121U (zh) 电机、压缩机及制冷设备
WO2022180664A1 (ja) モータ、圧縮機および冷凍サイクル装置
CN219164318U (zh) 一种永磁新能源汽车电机定转子铁芯冲片
CN218733480U (zh) 转子、定子、电机、压缩机及制冷设备
JP7292424B2 (ja) モータ、圧縮機および空気調和装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18927601

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020564378

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20207033229

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2018927601

Country of ref document: EP

Effective date: 20201210

NENP Non-entry into the national phase

Ref country code: DE