WO2020007104A1 - 风机 - Google Patents

风机 Download PDF

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Publication number
WO2020007104A1
WO2020007104A1 PCT/CN2019/084368 CN2019084368W WO2020007104A1 WO 2020007104 A1 WO2020007104 A1 WO 2020007104A1 CN 2019084368 W CN2019084368 W CN 2019084368W WO 2020007104 A1 WO2020007104 A1 WO 2020007104A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
stator
rotating shaft
permanent magnet
fan
Prior art date
Application number
PCT/CN2019/084368
Other languages
English (en)
French (fr)
Inventor
吴迪
武谷雨
陈金涛
龚黎明
诸自强
Original Assignee
广东威灵电机制造有限公司
美的威灵电机技术（上海）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
Application filed by 广东威灵电机制造有限公司, 美的威灵电机技术（上海）有限公司 filed Critical 广东威灵电机制造有限公司
Publication of WO2020007104A1 publication Critical patent/WO2020007104A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/0633—Details of the magnetic circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/064—Details of the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/0646—Details of the stator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • 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
    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • 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
    • 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
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/02—Machines with one stator and two or more rotors
    • 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
    • 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
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • 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 appliances, and in particular, to a fan.
  • Fans in related technologies are commonly used in fan coils, air conditioners, heaters, cooling fans, centrifuges, wind power generators, range hoods, blowers, air purifiers, etc.
  • the structure includes fan blades and motors.
  • Disadvantage In the existing dual-shaft technology of the existing fan, the two ends of the shaft of a single motor are extended to form two-sided shafts, but a single motor can only drive the fan blades to rotate at the same speed or in the same direction, and cannot achieve a true double-shaft.
  • Dual-power or dual-degree-of-freedom control of the shaft is actually the output of two or more speeds through the axial series of two or more motors, which increases the axial length of the motor, Weight and cost;
  • the speed of a single blade of a fan in some applications is required to reach 1200 rpm, the performance requirements of the motor are more stringent, the cost is higher, and the motor is in a high-load working state for a long time, which will cause its service life and structural stability. Certain damage.
  • the present application aims to solve at least one of the above technical problems.
  • an object of the present application is to provide a fan.
  • a fan including: a motor including a stator, a first rotor, and a second rotor, and the stator, the first rotor, and the second rotor are mutually Nested, and each adjacent two of the stator, the first rotor, and the second rotor are spaced by an air gap, and the first rotor and the second rotor rotate independently of each other; a first rotating shaft And a second rotating shaft, one of the first rotor and the second rotor is fixedly connected to the first rotating shaft, and the other of the first rotor and the second rotor is fixed to the second rotating shaft Connection; a first fan plate and a second fan plate, the first fan plate is mounted on the first rotating shaft, and the second fan plate is mounted on the second rotating shaft.
  • the fan provided by the above technical solution of the present application adopts a dual-rotation-shaft dual-power rotation structure.
  • the first and second rotors independently drive the first and second rotation shafts to rotate.
  • the first rotation shaft drives the first fan blade to rotate and the second rotation shaft.
  • Drive the second sector to rotate, the first sector and the second sector can rotate at different or the same speed, different or the same direction, high system integration, high power density, low energy consumption, high reliability, low noise, motor
  • the weight and cost are low, and the reliability is greatly improved due to the reduction of mechanical parts.
  • a single motor can only drive the blades at the same speed or
  • the solution of the same direction rotation can realize the rotation of two blades at different speeds and / or different directions of rotation, thereby achieving true dual-axis dual-power or two-degree-of-freedom control; and compared to a single blade using dual blades It can reduce the requirements on the fan speed, thereby reducing the performance requirements of the motor.
  • the motor runs at a relatively low speed, which is beneficial to its service life and stable structure.
  • the axial length, weight and cost of the motor can be reduced.
  • the fan provided in the above technical solution of the present application may also have the following additional technical features:
  • stator, the first rotor, and the second rotor are sequentially nested from the inside to the outside or from the outside to the inside.
  • the first rotor is a reluctance rotor
  • the second rotor is a permanent magnet rotor
  • the dual-shaft, dual-power motor uses the reluctance modulation effect to generate driving torque, and the torque density is higher than that of a conventional permanent magnet motor, which further increases the power density of the system and reduces energy consumption.
  • the magnetoresistive rotor includes a magnetically conductive magnetoresistive iron core and a non-magnetically conductive spacer block, and the magnetoresistive iron core and the spacer block are alternately arranged in a ring shape.
  • the structure of the magnetoresistive rotor can be simplified, and processing and manufacturing of the magnetoresistive rotor can be facilitated.
  • the permanent magnet rotor includes a permanent magnet core and magnetic steel
  • the magnetic steel includes a plurality of adjacently spaced along the circumferential direction of the permanent magnet core, and two adjacent ones
  • the magnet steel has the opposite polarity.
  • the stator includes a stator iron core and a set of stator windings wound on the stator iron core
  • the reluctance rotor includes a magnetically permeable magnetic resistance iron core and a non-magnetically permeable Spacer block
  • the magnetoresistive cores and the spacer blocks are alternately arranged in a ring shape
  • the number of the magnetoresistive cores is pr
  • the winding span of the stator winding is y 1s
  • the number of pole pairs is p s rotating magnetic field
  • the stator includes a stator iron core and two sets of stator windings wound on the stator iron core
  • ; p ad p f ⁇ p s ; y 1s ⁇ y 1ad .
  • the stator is provided between the first rotor and the second rotor.
  • the stator includes a stator core and two sets of stator windings, and the two sets of stator windings are both wound on the stator core, and the two sets of stator windings are respectively connected with the stator cores.
  • the first rotor and the second rotor correspond to independently drive the first rotor and the second rotor to rotate, respectively.
  • the two sets of stator windings are used to independently drive the first rotor and the second rotor to rotate, so that the first rotating shaft relatively fixedly connected to the first rotor and the second rotating shaft relatively fixedly connected to the second rotor are independently rotated, thereby realizing the first
  • the fan blade and the second fan blade can rotate at different or the same rotation speed and different or the same direction.
  • the first rotating shaft and the second rotating shaft are disposed coaxially, and the first rotating shaft, the second rotating shaft, the first fan blade, and the second The sector rotates concentrically.
  • the first rotating shaft and the second rotating shaft respectively protrude from both sides of the axial direction of the motor; or the first rotating shaft is a hollow shaft and the second rotating shaft It protrudes through a hollow portion in the middle of the first rotating shaft.
  • the stator includes a stator core and a stator winding, and the stator winding is wound on the stator core, wherein the stator includes one set of stator windings or two sets of stator windings.
  • a set of stator windings can be used to drive the reluctance rotor and permanent magnet rotor to rotate independently of each other, or two sets of stator windings can be used to drive the reluctance rotor and permanent magnet rotor to rotate independently of each other; the stator includes two sets of stator windings.
  • the number of phases of the two sets of stator windings may be the same or different. Therefore, the number of phases of the two sets of stator windings may be selected according to actual needs, thereby improving the practicability of the stator.
  • the stator further includes a stator case, and the stator case is sleeved on the outside of the stator core.
  • the stator casing can protect and isolate the stator core, thereby improving the safety and reliability of the dual-shaft dual-power motor during operation.
  • the first fan blade and the second fan blade each include at least one fan blade; or the first fan blade and / or the second fan blade is a windshield Or blower or impeller.
  • FIG. 1 is a schematic structural diagram of a fan according to a first embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a motor of a fan according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a fan according to a second embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a fan according to a third embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a fan according to a fourth embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a dual-shaft dual-power motor of a fan according to an embodiment of the present application.
  • Motor 10 stator 101, first rotor 102, second rotor 103;
  • Stator core 1011 stator winding 1012
  • Biaxial dual power motor 21 stator 211, reluctance rotor 212, permanent magnet rotor 213;
  • Stator core 2111 stator winding 2112, stator housing 2113, magnetoresistive core 2121, spacer 2122, magnetic steel 2131, permanent magnet core 2132;
  • the first transmission shaft 31 and the second transmission shaft 32 are connected to The first transmission shaft 31 and the second transmission shaft 32.
  • a fan 1 provided according to some embodiments of the present application includes a motor (such as the motor 10 in FIGS. 1 and 2, and a dual-shaft and dual-power in FIGS. 3 to 6).
  • a motor 21 ), a first fan blade 11, a second fan blade 12, a first rotating shaft 13, and a second rotating shaft 14.
  • the motor includes a stator (such as the stator 101 in FIGS. 1 and 2 and a stator 211 in FIGS. 3 to 6), a first rotor (such as the first rotor 102 in FIGS. 1 and 2, and FIG. 3).
  • a stator such as the stator 101 in FIGS. 1 and 2 and a stator 211 in FIGS. 3 to 6
  • a first rotor such as the first rotor 102 in FIGS. 1 and 2, and FIG. 3
  • the stator, the first rotor, and the second The rotors are nested with each other, and each adjacent two of the stator, the first rotor, and the second rotor are separated by an air gap.
  • the stator includes a stator core and a stator winding.
  • the stator winding is wound on the stator core.
  • the rotating shaft 13 and the second rotating shaft 14 respectively protrude from both sides of the axial direction of the motor, or the second rotating shaft 14 protrudes through the hollow portion of the first rotating shaft 13, and one of the first rotor and the second rotor is connected to the first rotating shaft. 13 is fixedly connected to drive the first rotating shaft 13 to rotate, and the other of the first rotor and the second rotor is fixedly connected to the second rotating shaft 14 to drive the second rotating shaft 14 to rotate, and the first fan blade is installed on the first rotating shaft 13 11.
  • a second blade 12 is mounted on the second rotating shaft 14.
  • the first rotating shaft 13, the second rotating shaft 14, the first blade 11 and the second blade 12 are coaxial. Turn.
  • the motor is a dual-shaft dual-power motor 21, and the dual-shaft dual-power motor 21 includes a ring-shaped stator 211, a reluctance rotor 212, and a permanent magnet rotor 213.
  • the stator 211, the reluctance rotor 212, and the permanent magnet rotor 213 are nested in order from inside to outside or from outside to inside (that is, the first rotor of the motor is the reluctance rotor 212, the second rotor is the permanent magnet rotor 213, the stator, the first rotor, and The second rotor is nested in order from the inside to the outside or from the outside to the inside), that is, the magnetoresistive rotor 212 is always located between the stator 211 and the permanent magnet rotor 213, and the stator 211 may be located outside the magnetoresistive rotor 212 and the permanent magnet rotor 213 is located Inside the reluctance rotor 212, or the stator 211 is inside the reluctance rotor 212 and the permanent magnet rotor 213 is outside the reluctance rotor 212; each adjacent two of the stator 211, the reluctance rotor
  • the stator 211 includes a stator core 2111 and a stator winding 2112, wherein the stator core is made of a highly magnetically permeable material, and the stator winding 2112 is wound on the stator core, as shown in FIG. 1 and FIG.
  • the stator core is made of a highly magnetically permeable material
  • the stator winding 2112 is wound on the stator core, as shown in FIG. 1 and FIG.
  • one of the reluctance rotor 212 and the permanent magnet rotor 213 is fixedly connected to the first rotation shaft 13 for driving the first rotation shaft 13 to rotate
  • the other of the reluctance rotor 212 and the permanent magnet rotor 213 is connected to the second rotation shaft.
  • the first rotating shaft 13 and the second rotating shaft 14 respectively protrude from the axial sides of the dual-shaft dual-power motor 21, or the second rotating shaft 14 passes through the first rotating shaft 13.
  • the hollow part in the middle part protrudes, the first fan blade 11 is installed on the first rotating shaft 13 and the second fan blade 12 is installed on the second rotating shaft 14, and the magnetoresistive rotor 212 and the permanent magnet rotor 213 independently drive the first rotating shaft 13 and the first The two rotating shafts 14 rotate, so that the first sector 11 and the second sector 12 rotate coaxially.
  • the magnetoresistive rotor 212 is fixedly connected to the first rotating shaft 13 through the first transmission shaft 31 (or the second transmission shaft 34) and drives the first rotating shaft 13 to rotate, and then drives the first sector 11 to rotate, the permanent magnet rotor 213 Then, the second transmission shaft 34 (or the first transmission shaft 31) is fixedly connected to the second rotating shaft 14 and drives the second rotating shaft 14 to rotate, thereby driving the second sector 12 to rotate.
  • the first sector 11 and the second sector 12 are the same The shaft rotates; when the reluctance rotor 212 is fixedly connected to the second rotating shaft 14 through the first driving shaft 31 (or the second driving shaft 34) and drives the second rotating shaft 14 to rotate, and then drives the second sector 12 to rotate, the permanent magnet rotor 213 Then, the second transmission shaft 34 (or the first transmission shaft 31) is fixedly connected to the first rotating shaft 13 and drives the first rotating shaft 13 to rotate, thereby driving the first sector 11 to rotate.
  • the first sector 11 and the second sector 12 are the same Axis rotation.
  • the first fan blade 11 and the second fan blade 12 are located on the same side of the dual-shaft dual-power motor 21, and the second rotating shaft 14 extends through a hollow portion in the middle of the first rotating shaft 13.
  • the stator 211 is located inside the magnetoresistive rotor 212.
  • the stator 211, the magnetoresistive rotor 212, and the permanent magnet rotor 213 are sequentially nested from the inside to the outside.
  • the magnetoresistive rotor 212 is fixedly connected to the second rotating shaft 14 through the second transmission shaft 32 and drives the first
  • the two rotating shafts 14 rotate, thereby driving the second blade 12 to rotate
  • the permanent magnet rotor 213 is fixedly connected to the first rotating shaft 13 through the first transmission shaft 31 and drives the first rotating shaft 13 to rotate, thereby driving the first blade 11 to rotate.
  • the sector 11 and the second sector 12 rotate concentrically.
  • stator 211 may also be provided.
  • the stator 211, the reluctance rotor 212, and the permanent magnet rotor 213 are sequentially nested from the outside to the inside, and one of the reluctance rotor 212 and the permanent magnet rotor 213 is fixedly connected to the first rotating shaft 13 for driving The first rotating shaft 13 rotates, and the other of the reluctance rotor 212 and the permanent magnet rotor 213 is fixedly connected to the second rotating shaft 14 for driving the second rotating shaft 14 to rotate.
  • the first rotating shaft 13 and the second rotating shaft 14 respectively protrude from the axial two sides of the dual-shaft dual-power motor 21, and the stator 211 is located outside the reluctance rotor 212. 211, the magnetoresistive rotor 212 and the permanent magnet rotor 213 are sequentially nested from the outside to the inside.
  • the magnetoresistive rotor 212 is fixedly connected to the second rotating shaft 14 through the first transmission shaft 31 and drives the second rotating shaft 14 to rotate, and then drives the second fan blade 12 to rotate.
  • the permanent magnet rotor 213 is directly fixedly connected to the first rotating shaft 13 and drives the first rotating shaft 13 to rotate, thereby driving the first sector 11 to rotate, and the first sector 11 and the second sector 12 rotate coaxially.
  • the first rotating shaft 13 and the second rotating shaft 14 respectively protrude from two axial sides of the dual-shaft dual-power motor 21, and the stator 211 is located inside the reluctance rotor 212. 211, the magnetoresistive rotor 212 and the permanent magnet rotor 213 are sequentially nested from the inside to the outside.
  • the magnetoresistive rotor 212 is fixedly connected to the first rotating shaft 13 through the first transmission shaft 31 and drives the first rotating shaft 13 to rotate, and then drives the first sector 11 to rotate.
  • the permanent magnet rotor 213 is fixedly connected to the second rotating shaft 14 through the second transmission shaft 32 and drives the second rotating shaft 14 to rotate, and then drives the second sector 12 to rotate, and the first sector 11 and the second sector 12 rotate coaxially.
  • dual-power pulverization of food is achieved in a non-mechanical differential and non-clutch manner, with high system integration, low energy consumption, and greatly reduced reliability due to the reduction of mechanical parts.
  • the dual-shaft dual-power motor 21 uses a reluctance modulation effect to generate driving torque, and the torque density is higher than that of a conventional permanent magnet motor, which further increases the power density of the system and reduces energy consumption.
  • stator 211 may include one set of stator windings 2112 or two sets of stator windings 2112.
  • the number of phases of the two sets of stator windings 2112 is the same or different. Therefore, the number of phases of the two sets of stator windings 2112 can be selected according to actual needs, thereby improving the practicability of the stator 211.
  • the stator 211 when the stator 211 is located outside the reluctance rotor 212, the stator 211 includes a stator case 2113, and the stator case 2113 is sleeved on the outside of the stator core 2111.
  • the stator case 2113 can face the stator.
  • the iron core 2111 plays a protective and insulating effect, thereby improving the safety and reliability of the dual-shaft dual-power motor 21 during operation.
  • the magnetoresistive rotor 212 includes a magnetically conductive magnetoresistive core 2121 and a non-magnetically conductive spacer block 2122.
  • the magnetoresistive iron core 2121 and the spacer block 2122 are alternately arranged in a ring shape. Therefore, the structure of the reluctance rotor 212 can be simplified, and processing and manufacturing are facilitated.
  • the permanent magnet rotor 213 includes a permanent magnet core 2132 and a magnetic steel 2131, where the magnetic steel 2131 may include a plurality of magnetic steel 2131 along a circumference of the permanent magnetic core 2132. They are arranged at intervals, and the two adjacent magnetic steels 2131 have opposite polarities. Therefore, it is beneficial to realize the rotation of the permanent magnet rotor 213 and the stator 211 by electromagnetic induction.
  • the stator 211 includes a set of stator windings 2112
  • the reluctance rotor 212 includes a magnetically conductive magnetically resistive core 2121 and a non-magnetically conductive spacer block 2122.
  • ⁇ s is the phase angle of the injection current axis of the stator winding 2112, ⁇ f and ⁇ r
  • the mechanical angle difference between the permanent magnet rotor 213 and the reluctance rotor 212 and the d-axis is respectively.
  • the stator 211 includes two sets of stator windings 2112, which are respectively referred to as a first winding and a second winding
  • the reluctance rotor 212 includes a magnetically conductive reluctance core 2121 and a non-magnetically conductive spacer block.
  • 2122, and 2121 are alternately arranged reluctance core spacer block 2122 the number of annular shape, the reluctance of the iron core 2121 p r, winding of the first stator winding span y 1s, and the formation of polar rotation number of p s Magnetic field.
  • the winding span of the second stator winding is y 1ad and forms a rotating magnetic field with a pole pair number p ad .
  • ; p ad p f ⁇ p s ; y 1s ⁇ y 1ad .
  • the motor 10 includes a stator 101, a first rotor 102, and a second rotor 103, and the stator 101, the first rotor 102, and the second rotor 103 are nested with each other. Each adjacent two of the stator 101, the first rotor 102, and the second rotor 103 are separated by an air gap. The first rotor 102 and the second rotor 103 rotate independently of each other.
  • the stator 101 includes a stator core 1011 and a stator. The winding 1012 and the stator winding 1012 are wound on the stator core 1011.
  • the first rotating shaft 13 and the second rotating shaft 14 respectively protrude from both sides of the motor 10 in the axial direction, or the second rotating shaft 14 passes through the middle of the first rotating shaft 13 and is hollow.
  • One of the first rotor 102 and the second rotor 103 is fixedly connected to the first rotating shaft 13 for driving the first rotating shaft 13 to rotate, and the other of the first rotor 102 and the second rotor 103 is connected to the second rotating shaft.
  • the 14 fixed connection is used to drive the second rotating shaft 14 to rotate.
  • a first fan blade 11 is installed on the first rotating shaft 13, a second fan blade 12 is installed on the second rotating shaft 14, the first rotating shaft 13, the second rotating shaft 14, and the first fan blade. 11 and the second sector 12 rotate concentrically.
  • the stator 101 is provided between the first rotor 102 and the second rotor 103.
  • the stator 101 includes a stator core 1011 and two sets of stator windings 1012.
  • the two sets of stator windings 1012 Both are wound on the stator core 1011, and two sets of stator windings 1012 respectively correspond to the first rotor 102 and the second rotor 103 to drive the first rotor 102 and the second rotor 103 to rotate independently, in other words, two sets of stator windings 1012 is referred to as a first stator winding and a second stator winding, the first stator winding corresponds to the first rotor 102, the second stator winding corresponds to the second rotor 103, and the first stator winding independently drives the first rotor 102 Rotating, the second stator winding independently drives the second rotor 103 to rotate.
  • the two sets of stator windings 1012 are used to independently drive the first rotor 102 and the second rotor 103 to rotate, so that the first rotation shaft 13 fixedly connected to the first rotor 102 and the second rotation shaft 14 fixedly connected to the second rotor 103 are independently rotated. Therefore, the first fan blade 11 and the second fan blade 12 can be rotated at different or the same rotation speed and different or the same direction.
  • the first rotating shaft 13 and the second rotating shaft 14 respectively protrude from two axial sides of the motor 10, and the stator 101 is located between the first rotor 102 and the second rotor 103.
  • a rotor 102, a stator 101, and a second rotor 103 are sequentially nested from the inside to the outside.
  • the first rotor 102 is directly fixedly connected to the first rotating shaft 13 and drives the first rotating shaft 13 to rotate, thereby driving the first blade 11 to rotate
  • the second rotor 103 is fixedly connected to the second rotating shaft 14 through the first transmission shaft 31 and drives the second rotating shaft 14 to rotate, and then drives the second sector 12 to rotate, and the first sector 11 and the second sector 12 rotate coaxially.
  • the first fan blade 11 and the second fan blade 12 each include at least one fan blade; or the first fan blade 11 and / or the second fan blade 12 are a windshield or a wind turbine or an impeller.
  • the fan 1 of the present application adopts a dual-rotation shaft and dual-power rotation structure.
  • the first rotation shaft 13 drives the first fan blade 11 to rotate
  • the second rotation shaft 14 drives the second fan blade 12 to rotate.
  • the first fan blade 11 and the second fan blade 12 can be Different or the same speed, different or the same direction rotation, high system integration, high power density, low energy consumption, high reliability, low noise, low motor weight and cost.
  • connection In the description of this application, the terms “connected”, “connected”, “fixed”, etc. should be understood in a broad sense unless otherwise specified and limited. For example, “connected” may be fixed or removable Connected, or integrated, or electrically; either directly or indirectly through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

一种风机（1），包括电机（10），电机（10）包括定子（101）、第一转子（102）和第二转子（103），定子（101）、第一转子（102）和第二转子（103）相互嵌套，定子（101）、第一转子（102）和第二转子（103）中每相邻的两个均以气隙间隔，第一转子（102）和第二转子（103）相互独立旋转，第一转子（102）和第二转子（103）分别驱动安装有第一扇片（11）的第一转轴（13）和安装有第二扇片（12）的第二转轴（14）同心旋转。该风机实现了双轴双动力旋转，系统集成度高、可靠性高、噪音小。

Description

风机
本申请要求于2018年07月03日提交中国专利局、申请号为201810717801.8、发明名称为“风机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及家用电器技术领域，具体而言，涉及一种风机。
背景技术
相关技术中的风机常用于风机盘管、空调、暖风机、散热风扇、离心机、风力发电、抽油烟机、鼓风机、空气净化器等，其结构包括扇叶和电机，在使用过程中发现如下缺点：现有风机中的双轴技术事实上是由单个电机的轴伸出两端形成两侧轴，但单个电机仅能驱动扇叶同转速或同种方向旋转，无法实现真正意义上的双轴双动力或双自由度控制；现有风机中的双动力或多动力技术事实上是由两个或更多电机的通过轴向串联输出双转速或多转速，增加了电机的轴向长度、重量和成本；对某些应用场合的风机的单个扇叶的转速要求达到1200rpm，对电机的性能要求较为严格，成本较高，电机长期处于高负荷工作状态，对其使用寿命、结构稳定会造成一定的损害。
发明内容
本申请旨在解决上述技术问题至少之一。
为此，本申请的目的在于，提供一种风机。
为了实现上述目的，本申请的技术方案提供了一种风机，包括：电机，所述电机包括定子、第一转子和第二转子，所述定子、所述第一转子以及所述第二转子相互嵌套，且所述定子、所述第一转子和所述第二转子中每相邻的两个均以气隙间隔，所述第一转子和所述第二转子相互独立旋转；第一转轴和第二转轴，所述第一转子和所述第二转子中的一个与所述第一转轴固定连接，所述 第一转子和所述第二转子中的另一个与所述第二转轴固定连接；第一扇片和第二扇片，所述第一扇片安装在所述第一转轴上，所述第二扇片安装在所述第二转轴上。
本申请上述技术方案提供的风机，采用双转轴双动力旋转结构，第一转子和第二转子分别独立地驱动第一转轴和第二转轴旋转，第一转轴带动第一扇片旋转，第二转轴带动第二扇片旋转，第一扇片、第二扇片可以以不同或相同转速、不同或相同方向旋转，系统集成度高、功率密度大、能耗低、可靠性高、噪音小、电机重量和成本低，并且由于机械零部件的减少可靠性大大提升；同时，相较于现有的由单个电机的轴伸出两端形成两侧轴，但单个电机仅能驱动扇叶同转速或同种方向旋转的方案，可以实现两扇片以不同转速和/或不同旋转方向旋转，从而实现真正意义上的双轴双动力或双自由度控制；并且相较于单扇片采用双扇片可以降低对扇片转速的要求，从而减轻电机的性能要求，同时电机处于相对低速情况下运转，对其使用寿命、结构稳定都有益处；同时相较于现有的由两个或更多的通过轴向串联输出双转速或多转速的方案，可以减小电机的轴向长度、重量和成本。
另外，本申请上述技术方案中提供的风机还可以具有如下附加技术特征：
在上述技术方案中，优选地，所述定子、所述第一转子以及所述第二转子依次由内向外或由外向内嵌套。
在上述技术方案中，优选地，所述第一转子为磁阻转子，所述第二转子为永磁转子。
双轴双动力电机采用磁阻调制效应产生驱动转矩，转矩密度高于常规永磁电机，进一步增加了系统的功率密度，降低了能耗。
在上述技术方案中，优选地，所述磁阻转子包括导磁的磁阻铁芯和非导磁的间隔块，所述磁阻铁芯和所述间隔块交替布置呈环形。
由此，可以简化磁阻转子的结构，便于磁阻转子的加工制造。
在上述技术方案中，优选地，所述永磁转子包括永磁铁芯和磁钢，所述磁钢包括沿所述永磁铁芯的周向间隔布置的多个，且相邻的两个所述磁钢极性相反。
由此，有利于实现永磁转子与定子通过电磁感应实现永磁转子的旋转。
在上述技术方案中，优选地，所述定子包括定子铁芯和绕制在所述定子铁芯上的一套定子绕组，所述磁阻转子包括导磁的磁阻铁芯和非导磁的间隔块，所述磁阻铁芯和所述间隔块交替布置呈环形，所述磁阻铁芯的数量为p r，所述定子绕组的绕组跨距为y 1s，并形成极对数为p s旋转磁场，所述永磁转子形成极对数为p f的永磁磁场，其中：p r＝|p s±p f|；p f≠p s。
在上述技术方案中，优选地，所述定子绕组的电流注入频率满足：ω s＝p rΩ r-p fΩ f，其中ω s为定子绕组的控制频率，Ω r和Ω f分别为磁阻转子和永磁转子的机械转速；所述定子绕组的电流注入相角满足：θ s＝-p rθ r+p fθ f，其中θ s为定子绕组的注入电流轴线的相角，θ f和θ r分别为永磁转子和磁阻转子与d轴对齐位置的机械角度差。
在上述技术方案中，优选地，所述定子包括定子铁芯和绕制在所述定子铁芯上的两套定子绕组，所述磁阻转子包括导磁的磁阻铁芯和非导磁的间隔块，所述磁阻铁芯和所述间隔块交替布置呈环形，所述磁阻铁芯的数量为p r，所述两套定子绕组的绕组跨距分别为y 1s和y 1ad，并分别形成极对数为p s和p ad的旋转磁场，所述永磁转子形成极对数为p f的永磁磁场，其中：p r＝|p s±p f|；p ad＝p f≠p s；y 1s≠y 1ad。
在上述技术方案中，优选地，所述两套定子绕组的电流注入频率分别满足：ω s＝p rΩ r-p fΩ f；ω ad＝p fΩ f，其中ω s和ω ad分别为两套绕组的控制频率，Ω r和Ω f分别为磁阻转子和永磁转子的机械转速；所述两套定子绕组的电流注入相角分别满足：θ s＝-p rθ r+p fθ f；θ ad＝-p fθ f，其中θ s和θ ad分别为两套绕组的注入电流轴线的相角，θ f和θ r分别为永磁转子和磁阻转子与d轴对齐位置的机械角度差。
在上述技术方案中，优选地，所述定子设于所述第一转子和所述第二转子之间。
在上述技术方案中，优选地，所述定子包括定子铁芯和两套定子绕组，所述两套定子绕组均绕制在所述定子铁芯上，且所述两套定子绕组分别与所述第一转子和所述第二转子对应以分别独立地驱动所述第一转子和所述第二转子旋转。
利用两套定子绕组分别独立地驱动第一转子和第二转子旋转，从而实现与第一转子相对固定连接的第一转轴和与第二转子相对固定连接的第二转轴独立旋转，从而实现第一扇片、第二扇片可以以不同或相同转速、不同或相同方 向旋转。
在上述任一技术方案中，优选地，所述第一转轴和所述第二转轴同轴心设置，所述第一转轴、所述第二转轴、所述第一扇片和所述第二扇片同轴心旋转。
在上述任一技术方案中，优选地，所述第一转轴和所述第二转轴分别从所述电机的轴向两侧伸出；或者所述第一转轴为空心轴，所述第二转轴穿过所述第一转轴的中部空心处伸出。
在上述技术方案中，优选地，所述定子包括定子铁芯和定子绕组，所述定子绕组绕制在所述定子铁芯上，其中，所述定子包括一套定子绕组或两套定子绕组。
具体而言，可以利用一套定子绕组驱动磁阻转子和永磁转子相互独立旋转，也可以利用两套定子绕组分别驱动磁阻转子和永磁转子相互独立旋转；在定子包括两套定子绕组的情况下，两套定子绕组的相数可以相同也可以不同，由此，可以根据实际需要选择两套定子绕组的相数，提高定子的实用性。
在上述技术方案中，优选地，所述定子还包括定子机壳，所述定子机壳套设在所述定子铁芯的外侧。
定子机壳可以对定子铁芯起到保护和绝缘的效果，从而提高双轴双动力电机运行过程中的安全性和可靠性。
在上述任一技术方案中，优选地，所述第一扇片和所述第二扇片均包括至少一个扇叶；或所述第一扇片和/或所述第二扇片为风罩或者风筒或者叶轮。
本申请的附加方面和优点将在下面的描述部分中变得明显，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是本申请第一个实施例的风机的结构示意图；
图2是本申请一个实施例的风机的电机的结构示意图；
图3是本申请第二个实施例的风机的结构示意图；
图4是本申请第三个实施例的风机的结构示意图；
图5是本申请第四个实施例的风机的结构示意图；
图6是本申请一个实施例的风机的双轴双动力电机的结构示意图。
其中，图1至图6中的附图标记与部件名称之间的对应关系为：
风机1；
第一扇片11，第二扇片12，第一转轴13，第二转轴14；
电机10，定子101，第一转子102，第二转子103；
定子铁芯1011，定子绕组1012；
双轴双动力电机21，定子211，磁阻转子212，永磁转子213；
定子铁芯2111，定子绕组2112，定子机壳2113，磁阻铁芯2121，间隔块2122，磁钢2131，永磁铁芯2132；
第一传动轴31，第二传动轴32。
具体实施方式
为了能够更清楚地理解本申请的上述目的、特征和优点，下面结合附图和具体实施方式对本申请进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本申请，但是，本申请还可以采用其他不同于在此描述的其他方式来实施，因此，本申请的保护范围并不受下面公开的具体实施例的限制。
下面参照图1至图6描述根据本申请一些实施例所述的风机。
如图1至图6所示，根据本申请的一些实施例提供的一种风机1，包括：电机(如图1和图2中的电机10、如图3至图6中的双轴双动力电机21)、第一扇片11、第二扇片12、第一转轴13、第二转轴14。
具体地，电机包括定子(如图1和图2中的定子101、如图3至图6中的定子211)、第一转子(如图1和图2中的第一转子102、如图3至图6中的磁阻转子212)和第二转子(如图1和图2中的第二转子103、如图3至图6中的永磁转子213)，定子、第一转子以及第二转子相互嵌套，且定子、第一转子和第二转子中每相邻的两个均以气隙间隔，定子包括：定子铁芯和定子绕组，定子绕组绕制在定子铁芯上，第一转轴13和第二转轴14分别从电机的轴向两侧伸出，或者第二转轴14穿过第一转轴13的中部空心处伸出，第一转子 和第二转子中的一个与第一转轴13固定连接用于驱动第一转轴13旋转，且第一转子和第二转子中的另一个与第二转轴14固定连接用于驱动第二转轴14旋转，第一转轴13上安装第一扇片11，第二转轴14上安装第二扇片12，第一转轴13、第二转轴14、第一扇片11和第二扇片12同轴心旋转。
在本申请的一些实施例中，如图3至图6所示，电机为双轴双动力电机21，双轴双动力电机21包括呈环形的定子211、磁阻转子212和永磁转子213，定子211、磁阻转子212以及永磁转子213依次由内向外或由外向内嵌套(即电机的第一转子为磁阻转子212，第二转子为永磁转子213，定子、第一转子以及第二转子依次由内向外或由外向内嵌套)，也就是说，磁阻转子212始终位于定子211和永磁转子213之间，定子211可以位于磁阻转子212外侧且永磁转子213位于磁阻转子212内侧，或定子211位于磁阻转子212内侧且永磁转子213位于磁阻转子212外侧；定子211、磁阻转子212和永磁转子213中每相邻的两个均以气隙间隔，换言之，定子211和磁阻转子212之间具有气隙间隔开，且磁阻转子212和永磁转子213之间也有气隙间隔开，以保证磁阻转子212以及永磁转子213之间的旋转独立性。
进一步地，如图3所示，定子211包括：定子铁芯2111和定子绕组2112，其中，定子铁芯由高导磁材料构成，定子绕组2112绕制在定子铁芯上，如图1和图2所示，磁阻转子212和永磁转子213中的一个与第一转轴13固定连接用于驱动第一转轴13旋转，且磁阻转子212和永磁转子213中的另一个与第二转轴14固定连接用于驱动第二转轴14旋转；且第一转轴13和第二转轴14分别从双轴双动力电机21的轴向两侧伸出，或者第二转轴14穿过第一转轴13的中部空心处伸出，第一转轴13上安装第一扇片11，第二转轴14上安装第二扇片12，且磁阻转子212和永磁转子213分别独立地驱动第一转轴13和第二转轴14旋转，从而实现第一扇片11和第二扇片12同轴心旋转。
也就是说，当磁阻转子212通过第一传动轴31(或第二传动轴34)固定连接第一转轴13并驱动第一转轴13旋转，进而驱动第一扇片11旋转，永磁转子213则通过第二传动轴34(或第一传动轴31)固定连接第二转轴14并驱动第二转轴14旋转，进而驱动第二扇片12旋转，第一扇片11和第二扇片12同轴心旋转；当磁阻转子212通过第一传动轴31(或第二传动轴34)固定连 接第二转轴14并驱动第二转轴14旋转，进而驱动第二扇片12旋转，永磁转子213则通过第二传动轴34(或第一传动轴31)固定连接第一转轴13并驱动第一转轴13旋转，进而驱动第一扇片11旋转，第一扇片11和第二扇片12同轴心旋转。
一个具体实施例中，如图3所示，第一扇片11和第二扇片12位于双轴双动力电机21的同侧，且第二转轴14穿过第一转轴13的中部空心处伸出，定子211位于磁阻转子212的内侧，定子211、磁阻转子212和永磁转子213依次由内向外嵌套，磁阻转子212通过第二传动轴32固定连接第二转轴14并驱动第二转轴14旋转，进而驱动第二扇片12旋转，永磁转子213则通过第一传动轴31固定连接第一转轴13并驱动第一转轴13旋转，进而驱动第一扇片11旋转，第一扇片11和第二扇片12同轴心旋转。
当然，对于第一扇片11和第二扇片12位于双轴双动力电机21的同侧，且第二转轴14穿过第一转轴13的中部空心处伸出的方案，也可以设置定子211位于磁阻转子212的外侧，定子211、磁阻转子212和永磁转子213依次由外向内嵌套，且磁阻转子212和永磁转子213中的一个与第一转轴13固定连接用于驱动第一转轴13旋转，且磁阻转子212和永磁转子213中的另一个与第二转轴14固定连接用于驱动第二转轴14旋转。
另一个具体实施例中，如图4所示，第一转轴13和第二转轴14分别从双轴双动力电机21的轴向两侧伸出，且定子211位于磁阻转子212的外侧，定子211、磁阻转子212和永磁转子213依次由外向内嵌套，磁阻转子212通过第一传动轴31固定连接第二转轴14并驱动第二转轴14旋转，进而驱动第二扇片12旋转，永磁转子213直接固定连接第一转轴13并驱动第一转轴13旋转，进而驱动第一扇片11旋转，第一扇片11和第二扇片12同轴心旋转。
又一个具体实施例中，如图5所示，第一转轴13和第二转轴14分别从双轴双动力电机21的轴向两侧伸出，且定子211位于磁阻转子212的内侧，定子211、磁阻转子212和永磁转子213依次由内向外嵌套，磁阻转子212通过第一传动轴31固定连接第一转轴13并驱动第一转轴13旋转，进而驱动第一扇片11旋转，永磁转子213通过第二传动轴32固定连接第二转轴14并驱动第二转轴14旋转，进而驱动第二扇片12旋转，第一扇片11和第二扇片12 同轴心旋转。
根据本申请的风机1，采用无机械差速、无离合的方式实现了双动力粉碎食物，系统集成度高、能耗低，并且由于机械零部件的减少，可靠性大大提升。此外，双轴双动力电机21采用磁阻调制效应产生驱动转矩，转矩密度高于常规永磁电机，进一步增加了系统的功率密度，降低了能耗。
进一步地，定子211可以包括一套定子绕组2112或两套定子绕组2112。
具体地，两套定子绕组2112的相数相同或者不同，由此，可以根据实际需要选择两套定子绕组2112的相数，提高定子211的实用性。
有利地，如图6所示，当定子211位于磁阻转子212的外侧时，定子211包括定子机壳2113，定子机壳2113套设在定子铁芯2111的外侧，定子机壳2113可以对定子铁芯2111起到保护和绝缘的效果，从而提高双轴双动力电机21运行过程中的安全性和可靠性。
在本申请的一些实施例中，如图6所示，磁阻转子212包括导磁的磁阻铁芯2121和非导磁的间隔块2122，磁阻铁芯2121和间隔块2122交替布置呈环形，由此，可以简化磁阻转子212的结构，便于加工制造。
在本申请的一些实施例中，如图6所示，永磁转子213包括永磁铁芯2132和磁钢2131，其中磁钢2131可以包括多个，多个磁钢2131沿永磁铁芯2132的周向间隔布置，且相邻的两个磁钢2131极性相反，由此，有利于实现永磁转子213与定子211通过电磁感应实现永磁转子213的旋转。
在本申请的一些实施例中，如图6所示，定子211包括一套定子绕组2112，磁阻转子212包括导磁的磁阻铁芯2121和非导磁的间隔块2122，磁阻铁芯2121和间隔块2122交替布置呈环形，磁阻铁芯2121的数量为p r，定子绕组2112的绕组跨距为y 1s，并形成极对数为p s旋转磁场，永磁转子213形成极对数为p f的永磁磁场，其中：p r＝|p s±p f|；p f≠p s。
进一步地，定子绕组2112的电流注入频率满足：ω s＝p rΩ r-p fΩ f，其中ω s为定子绕组2112的控制频率，Ω r和Ω f分别为磁阻转子212和永磁转子213的机械转速，定子绕组2112的电流注入相角满足：θ s＝-p rθ r+p fθ f，其中θ s为定子绕组2112的注入电流轴线的相角，θ f和θ r分别为永磁转子213和磁阻转子212与d轴对齐位置的机械角度差。
在本申请的另一些实施例中，定子211包括两套定子绕组2112，分别记为第一绕组和第二绕组，磁阻转子212包括导磁的磁阻铁芯2121和非导磁的间隔块2122，磁阻铁芯2121和间隔块2122交替布置呈环形，磁阻铁芯2121的数量为p r，第一定子绕组的绕组跨距为y 1s，并形成极对数为p s的旋转磁场，第二定子绕组的绕组跨距为y 1ad，并形成极对数为p ad的旋转磁场，永磁转子213形成极对数为p f的永磁磁场，其中：p r＝|p s±p f|；p ad＝p f≠p s；y 1s≠y 1ad。
进一步地，第一绕组和第二绕组的电流注入频率分别满足：ω s＝p rΩ r-p fΩ f；ω ad＝p fΩ f，其中ω s和ω ad分别为第一绕组和第二绕组的控制频率，Ω r和Ω f分别为磁阻转子212和永磁转子213的机械转速；第一绕组和第二绕组的电流注入相角分别满足：θ s＝-p rθ r+p fθ f；θ ad＝-p fθ f，其中θ s和θ ad分别为第一绕组和第二绕组的注入电流轴线的相角，θ f和θ r分别为永磁转子213和磁阻转子212与d轴对齐位置的机械角度差，由此，有利于实现磁阻转子212和永磁转子213的解耦控制。
在本申请的另一些实施例中，如图1和图2所示，电机10包括定子101、第一转子102和第二转子103，定子101、第一转子102以及第二转子103相互嵌套，且定子101、第一转子102和第二转子103中每相邻的两个均以气隙间隔，第一转子102和第二转子103相互独立旋转，定子101包括：定子铁芯1011和定子绕组1012，定子绕组1012绕制在定子铁芯1011上，第一转轴13和第二转轴14分别从电机10的轴向两侧伸出，或者第二转轴14穿过第一转轴13的中部空心处伸出，第一转子102和第二转子103中的一个与第一转轴13固定连接用于驱动第一转轴13旋转，且第一转子102和第二转子103中的另一个与第二转轴14固定连接用于驱动第二转轴14旋转，第一转轴13上安装第一扇片11，第二转轴14上安装第二扇片12，第一转轴13、第二转轴14、第一扇片11和第二扇片12同轴心旋转。
一个具体实施例中，如图1和图2所示，定子101设于第一转子102和第二转子103之间，定子101包括定子铁芯1011和两套定子绕组1012，两套定子绕组1012均绕制在定子铁芯1011上，且两套定子绕组1012分别与第一转子102和第二转子103对应以分别独立地驱动第一转子102和第二转子103旋转，换言之，两套定子绕组1012分别记作第一定子绕组和第二定子绕组， 第一定子绕组与第一转子102对应，第二定子绕组与第二转子103对应，第一定子绕组独立地驱动第一转子102旋转，第二定子绕组独立地驱动第二转子103旋转。
利用两套定子绕组1012分别独立地驱动第一转子102和第二转子103旋转，从而实现与第一转子102固定连接的第一转轴13和与第二转子103固定连接的第二转轴14独立旋转，从而实现第一扇片11、第二扇片12可以以不同或相同转速、不同或相同方向旋转。
一个具体实施例中，如图1所示，第一转轴13和第二转轴14分别从电机10的轴向两侧伸出，且定子101位于第一转子102和第二转子103之间，第一转子102、定子101、第二转子103依次由内向外嵌套，第一转子102通过直接固定连接第一转轴13并驱动第一转轴13旋转，进而驱动第一扇片11旋转，第二转子103通过第一传动轴31固定连接第二转轴14并驱动第二转轴14旋转，进而驱动第二扇片12旋转，第一扇片11和第二扇片12同轴心旋转。
在本申请的一些实施例中，第一扇片11和第二扇片12均包括至少一个扇叶；或第一扇片11和/或第二扇片12为风罩或者风筒或者叶轮。
本申请的风机1采用双转轴双动力旋转结构，第一转轴13带动第一扇片11旋转，第二转轴14带动第二扇片12旋转，第一扇片11、第二扇片12可以以不同或相同转速、不同或相同方向旋转，系统集成度高、功率密度大、能耗低、可靠性高、噪音小、电机重量和成本低。
本申请的描述中，需要理解的是，术语“内”、“外”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单元必须具有特定的方向、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。
在本申请的描述中，除非另有明确的规定和限定，术语“相连”、“连接”、“固定”等均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接，或电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例” 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实例。而且，描述的具体特征、结构、材料或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。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (16)

  1. 一种风机，其中，包括：
    电机，所述电机包括定子、第一转子和第二转子，所述定子、所述第一转子以及所述第二转子相互嵌套，且所述定子、所述第一转子和所述第二转子中每相邻的两个均以气隙间隔，所述第一转子和所述第二转子相互独立旋转；
    第一转轴和第二转轴，所述第一转子和所述第二转子中的一个与所述第一转轴固定连接，所述第一转子和所述第二转子中的另一个与所述第二转轴固定连接；
    第一扇片和第二扇片，所述第一扇片安装在所述第一转轴上，所述第二扇片安装在所述第二转轴上。
  2. 根据权利要求1所述的风机，其中，
    所述定子、所述第一转子以及所述第二转子依次由内向外或由外向内嵌套。
  3. 根据权利要求2所述的风机，其中，
    所述第一转子为磁阻转子，所述第二转子为永磁转子。
  4. 根据权利要求3所述的风机，其中，
    所述磁阻转子包括导磁的磁阻铁芯和非导磁的间隔块，所述磁阻铁芯和所述间隔块交替布置呈环形。
  5. 根据权利要求4所述的风机，其中，
    所述永磁转子包括永磁铁芯和磁钢，所述磁钢包括沿所述永磁铁芯的周向间隔布置的多个，且相邻的两个所述磁钢极性相反。
  6. 根据权利要求5所述的风机，其中，
    所述定子包括定子铁芯和绕制在所述定子铁芯上的一套定子绕组，所述磁阻铁芯的数量为p r，所述定子绕组的绕组跨距为y 1s，并形成极对数为p s旋转磁场，所述永磁转子形成极对数为p f的永磁磁场，其中：
    p r＝|p s±p f|；p f≠p s。
  7. 根据权利要求6所述的风机，其中，
    所述定子绕组的电流注入频率满足：ω s＝p rΩ r-p fΩ f，其中ω s为定子绕组的 控制频率，Ω r和Ω f分别为磁阻转子和永磁转子的机械转速；
    所述定子绕组的电流注入相角满足：θ s＝-p rθ r+p fθ f，其中θ s为定子绕组的注入电流轴线的相角，θ f和θ r分别为永磁转子和磁阻转子与d轴对齐位置的机械角度差。
  8. 根据权利要求5所述的风机，其中，
    所述定子包括定子铁芯和绕制在所述定子铁芯上的两套定子绕组，所述磁阻铁芯的数量为p r，所述两套定子绕组的绕组跨距分别为y 1s和y 1ad，并分别形成极对数为p s和p ad的旋转磁场，所述永磁转子形成极对数为p f的永磁磁场，其中：
    p r＝|p s±p f|；p ad＝p f≠p s；y 1s≠y 1ad。
  9. 根据权利要求8所述的风机，其中，
    所述两套定子绕组的电流注入频率分别满足：ω s＝p rΩ r-p fΩ f；ω ad＝p fΩ f，其中ω s和ω ad分别为两套绕组的控制频率，Ω r和Ω f分别为磁阻转子和永磁转子的机械转速；
    所述两套定子绕组的电流注入相角分别满足：θ s＝-p rθ r+p fθ f；θ ad＝-p fθ f，其中θ s和θ ad分别为两套绕组的注入电流轴线的相角，θ f和θ r分别为永磁转子和磁阻转子与d轴对齐位置的机械角度差。
  10. 根据权利要求1所述的风机，其中，
    所述定子设于所述第一转子和所述第二转子之间。
  11. 根据权利要求10所述的风机，其中，
    所述定子包括定子铁芯和两套定子绕组，所述两套定子绕组均绕制在所述定子铁芯上，且所述两套定子绕组分别与所述第一转子和所述第二转子对应以分别独立地驱动所述第一转子和所述第二转子旋转。
  12. 根据权利要求1至11中任一项所述的风机，其中，
    所述第一转轴和所述第二转轴同轴心设置，所述第一转轴、所述第二转轴、所述第一扇片和所述第二扇片同轴心旋转。
  13. 根据权利要求1至11中任一项所述的风机，其中，
    所述第一转轴和所述第二转轴分别从所述电机的轴向两侧伸出；或者所述第一转轴为空心轴，所述第二转轴穿过所述第一转轴的中部空心处伸出。
  14. 根据权利要求1至5中任一项所述的风机，其中，
    所述定子包括定子铁芯和定子绕组，所述定子绕组绕制在所述定子铁芯上，其中，所述定子包括一套定子绕组或两套定子绕组。
  15. 根据权利要求14所述的风机，其中，
    所述定子还包括定子机壳，所述定子机壳套设在所述定子铁芯的外侧。
  16. 根据权利要求1至11中任一项所述的风机，其中，
    所述第一扇片和所述第二扇片均包括至少一个扇叶；或
    所述第一扇片和/或所述第二扇片为风罩或者风筒或者叶轮。
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