WO2023182057A1 - Blowing device and air conditioner - Google Patents

Blowing device and air conditioner Download PDF

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Publication number
WO2023182057A1
WO2023182057A1 PCT/JP2023/009681 JP2023009681W WO2023182057A1 WO 2023182057 A1 WO2023182057 A1 WO 2023182057A1 JP 2023009681 W JP2023009681 W JP 2023009681W WO 2023182057 A1 WO2023182057 A1 WO 2023182057A1
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WO
WIPO (PCT)
Prior art keywords
rotor
plate member
blower
blower fan
stator core
Prior art date
Application number
PCT/JP2023/009681
Other languages
French (fr)
Japanese (ja)
Inventor
幸平 土山
佳典 高山
純 石丸
哲平 小端
Original Assignee
ダイキン工業株式会社
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 ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Publication of WO2023182057A1 publication Critical patent/WO2023182057A1/en

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    • 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
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/043—Shafts
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/02—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
    • 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
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
    • 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

Definitions

  • the present disclosure relates to a blower device and an air conditioner.
  • air blowing devices include an axial gap type motor in which a rotor and a stator of an electric motor are arranged facing each other at a predetermined interval along the axial direction of the rotor, and a blower fan driven by the axial gap type motor.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2005-171835
  • the blower fan of the blower device has an end plate in which a plurality of fan-shaped magnetic chips are arranged in the circumferential direction.
  • the rotor of the above-mentioned axial gap type motor is composed of a back yoke made of a magnetic material and a permanent magnet.
  • the blower fan is connected to the axial gap type motor by the magnetic attraction force between the back yoke of the rotor and the magnetic chip of the blower fan.
  • the magnetic force increases only at specific magnetic poles of the rotor with respect to the magnetic chip placed on the end plate of the blower fan, which increases cogging torque and ripples in the axial attraction force, causing vibrations and vibrations during operation. There is a problem of increased noise.
  • the present disclosure proposes a blower device that can suppress vibration and noise during operation, and an air conditioner equipped with the blower device.
  • the air blower according to the first aspect of the present disclosure includes: A blower fan having an end plate and a plate member made of a ferromagnetic material or a paramagnetic material provided on the end plate on one side in the axial direction; an axial gap type motor that drives the blower fan and has a rotor including a polar anisotropically oriented magnet member; The rotor of the motor and the plate member of the blower fan are connected by magnetic force.
  • the magnetic force does not increase only in a specific magnetic pole, and it is possible to suppress deterioration of cogging torque and ripple of axial attraction force, thereby suppressing vibration and noise during operation. can.
  • the rotor of the motor is directly connected to the plate member of the blower fan.
  • the air blower according to the third aspect of the present disclosure includes:
  • the axial gap type motor includes a stator having a stator core that faces the rotor through an air gap in the axial direction of the rotor, When the stator core is viewed from the axial direction of the rotor, the stator core has a portion that overlaps the plate member.
  • leakage of magnetic flux on the end plate side of the rotor can be reduced.
  • the entire stator core overlaps the plate member.
  • leakage of magnetic flux on the end plate side of the rotor can be reduced compared to when only a part of the stator core overlaps the plate member.
  • a radial end portion of the plate member is bent and embedded in the end plate.
  • the end plate has a recess into which the rotor is fitted, on the end face on the motor side;
  • the recessed portion is formed such that when the rotor is fitted into the recessed portion, a central axis of the blower fan and a central axis of the rotor are located on the same line.
  • the assembly work of the blower device becomes easy.
  • the air conditioner according to the seventh aspect of the present disclosure includes: The air blowing device according to any one of the first aspect to the sixth aspect is provided.
  • vibration and noise during operation can be suppressed.
  • FIG. 1 is an external perspective view of a blower device according to a first embodiment of the present disclosure.
  • FIG. 2 is a side view of the blower device of the first embodiment before assembly.
  • FIG. 2 is a side view of the blower device of the first embodiment after assembly.
  • FIG. 2 is an exploded perspective view of the air blower according to the first embodiment. It is a top view of the 1st rotor of the air blower of 1st Embodiment. It is a perspective view of the 1st rotor of the air blower of a 1st embodiment. It is a top view of the plate member of the air blower of 1st Embodiment. It is a perspective view of the plate member of the air blower of 1st Embodiment.
  • FIG. 2 is an external perspective view of a blower device according to a second embodiment of the present disclosure. It is a side view of the air blower of 2nd Embodiment. It is an exploded perspective view of the air blower of a 2nd embodiment.
  • FIG. 16 is a perspective view of a cross section taken along line XVII-XVII in FIG. 15.
  • FIG. FIG. 18 is an enlarged cross-sectional view of the main part of FIG. 17; It is an enlarged sectional view of the principal part of a modification of the blower device of a 1st embodiment. It is an enlarged sectional view of the principal part of a modification of the blower device of a 1st embodiment. It is an enlarged sectional view of the principal part of a modification of the blower device of a 1st embodiment. It is an enlarged sectional view of the principal part of a modification of the blower device of a 1st embodiment. It is an enlarged sectional view of the principal part of a modification of the blower device of a 1st embodiment.
  • FIG. 1 is an external perspective view of a blower device 1 according to a first embodiment of the present disclosure.
  • the blower device 1 of the first embodiment includes a blower fan 20 and an axial gap type motor M1.
  • the blower fan 20 is an example of a centrifugal fan.
  • a sirocco fan is used as the ventilation fan 20.
  • the blower fan 20 includes a disc-shaped end plate 21, a plurality of blades 22 arranged at intervals in the circumferential direction on one surface of the end plate 21, and a side opposite to the end plate 21 of the plurality of blades 22. It has an annular member 23 to be connected.
  • FIG. 2 shows a side view of the blower device 1 before assembly
  • FIG. 3 shows a side view of the blower device 1 in a state where the blower fan 20 and the motor M1 are connected.
  • FIG. 4 is an exploded perspective view of the blower device 1. As shown in FIG. 4, the plate member 24 of the blower fan 20 and one disc-shaped first rotor 40 of the motor M1 are opposed to each other.
  • the plate member 24 is made of a steel plate material.
  • blower fan 20 has an annular plate member 24 provided on the other surface of the disk-shaped end plate 21 of the blower fan 20 .
  • the ventilation fan 20 has a plate member 24 fixed to the end plate 21 by insert molding.
  • end plate 21 of the blower fan 20 itself may be made of a steel plate material, and the end plate 21 may also serve as a plate member, or the entire blower fan may be made of a steel plate material. Further, the material is not limited to steel plate material, and any material may be ferromagnetic or paramagnetic.
  • the motor M1 includes first and second disc-shaped rotors 40 and 50, a first bearing 44 that rotatably supports the first rotor 40, and a first bearing 44 that rotatably supports the second rotor 50. It has two bearings 54 and a stator 60 sandwiched between the first and second rotors 40 and 50 from both axial directions.
  • FIG. 5 is a plan view of the first rotor 40 of the air blower 1
  • FIG. 6 is a perspective view of the first rotor 40 of the air blower 1. Note that the second rotor 50 has the same configuration as the first rotor 40.
  • the first rotor 40 includes a fixed part 41 provided in the center and a disc-shaped magnet member 42 provided on the outer periphery of the fixed part 41.
  • a first bearing 44 (shown in FIG. 4) is fixed to the inner periphery of the circular hole 42a of the fixed part 41.
  • the disc-shaped magnet member 42 is a polar anisotropically oriented plastic magnet.
  • S poles and N poles are alternately arranged in the circumferential direction.
  • the leakage magnetic flux from the surface opposite to the surface facing the stator 60 is very small compared to the case where parallel-oriented permanent magnets are used, so in this embodiment, the back yoke is is not used.
  • FIG. 7 is a plan view of the plate member 24 of the blower fan 20, and FIG. 8 is a perspective view of the plate member 24 of the blower device 1.
  • the plate member 24 includes an annular portion 24a, a step portion 24b provided at the inner edge of the annular portion 24a, and a step portion 24c provided at the outer edge of the annular portion 24a.
  • the plate member 24 is made of a steel plate material, and also acts as a back yoke for the magnet member 42 of the first rotor 40, increasing the induced voltage and improving rotation performance.
  • the plate member 24 is not limited to a steel plate material, and may be any material as long as it is a ferromagnetic material or a paramagnetic material. Further, the plate member 24 may be a polar anisotropically oriented plastic magnet, and in this case, the blades of the blower fan and the plate member can be manufactured by two-color molding.
  • the concentricity between the plate member and the end plate is improved compared to insert molding, which reduces vibration when the rotor and the blower fan rotate. Noise and vibration during operation can be further reduced.
  • FIG. 9 is a plan view of the stator 60
  • FIG. 10 is a perspective view of the stator 60.
  • the stator 60 includes a stator core 61 arranged at intervals in the circumferential direction, a coil 62 wound around the stator core 61, and a coil 62 fixed in the axial direction at the center.
  • the stator core 61 , the coil 62 , and the shaft 63 are resin-molded into a disc-shaped molded part 64 , and an insulator 65 that insulates the stator core 61 and the coil 62 .
  • the stator core 61 faces the first rotor 40 in the axial direction of the first rotor 40 via an air gap G1, and faces the second rotor 40 in the axial direction of the second rotor 50 via an air gap G2. 50 (see Figure 13).
  • the air gaps G1 and G2 are, for example, 0.5 mm to 1 mm.
  • FIG. 11 is a perspective view of a cross section taken along the line XI-XI in FIG. 2, and FIG. 12 is a cross-sectional view taken along the line XII-XII in FIG. 3.
  • the plate member 24 of the blower fan 20 and the first rotor 40 of the motor M1 are connected by the magnetic force of the magnet member 42.
  • blower fan 20 since the blower fan 20 is fixed to the first rotor 40 of the motor M1 by magnetic force, the blower fan 20 can be easily attached and detached. This improves ease of assembly and maintenance.
  • FIG. 13 is an enlarged sectional view of the main part of FIG. 12. As shown in FIG. 13, the first rotor 40 of the motor M1 is directly connected to the plate member 24 of the blower fan 20. As shown in FIG. 13, the first rotor 40 of the motor M1 is directly connected to the plate member 24 of the blower fan 20. As shown in FIG. 13, the first rotor 40 of the motor M1 is directly connected to the plate member 24 of the blower fan 20.
  • the stator core 61 faces the rotor 40 with an air gap G1 in between in the axial direction of the rotor 40.
  • the entire stator core 61 overlaps the plate member 24.
  • the plate member 24 is arranged such that the inner diameter of the plate member 24 is smaller than the inner diameter of the stator core 61 and the outer diameter of the plate member 24 is larger than the outer diameter of the stator core 61. is formed. Further, the difference between the outer diameter of the plate member 24 and the outer diameter of the stator core 61 is larger than the difference between the inner diameter of the plate member 24 and the inner diameter of the stator core 61.
  • Both ends of the plate member 24 in the radial direction are bent and embedded in the end plate 21. More specifically, in the inner circumferential edge of the plate member 24, the stepped portion 24b extends from the radially inner end of the annular portion 24a to the side opposite to the rotor 40, and then extends toward the radially inner side of the end plate 21. It extends. On the other hand, in the outer peripheral edge of the plate member 24, the stepped portion 24c extends from the radially outer end of the annular portion 24a to the side opposite to the rotor 40, and then extends toward the radially outer side of the end plate 21. ing. Such step portions 24b and 24c are covered with resin, which is the material of the end plate 21, when the blower fan 20 is formed, and are no longer exposed from the end plate 21.
  • the end plate 21 has a recess 21a into which the rotor 40 is fitted, on the end surface on the motor M1 side.
  • the bottom surface of the recess 21a has a first portion and a second portion provided radially outward from the first portion.
  • the second portion is arranged closer to the stator 60 than the first portion.
  • the first portion is located on the opposite side of the stator 60 with respect to the second portion.
  • a portion of the annular portion 24a is exposed from the second portion.
  • the second portion includes the surface of the annular portion 24a on the rotor 40 side.
  • the fixed part 41 of the rotor 40 contacts the first part of the recess 21a, and the relatively thin part of the magnet member 42 of the rotor 40 comes into contact with the recess 21a.
  • the outer peripheral surface of the magnet member 42 of the rotor 40 contacts the side surface of the recess 21a.
  • the recess 21a is formed such that when the rotor 40 is fitted into the recess 21a, the central axis of the blower fan 20 and the central axis of the rotor 40 are located on the same line.
  • the end plate 21 is formed to have an outer diameter larger than the outer diameter of the rotor 40. Furthermore, when the rotor 40 is not fitted into the recess 21a, the annular portion 24a of the plate member 24 is exposed.
  • the first rotor 40 of the motor M1 and the plate member 24 of the blower fan 20 are connected by the magnetic force of the polar-anisotropically oriented plastic magnets. Since a magnetic chip is used in the magnet, the magnetic force does not increase only at a specific magnetic pole, and it is possible to suppress deterioration of cogging torque and ripple in the axial attraction force. This makes it possible to suppress vibration and noise during operation.
  • an example of the air conditioner includes an indoor unit and an outdoor unit connected to the indoor unit via a refrigerant circuit.
  • This indoor unit may include the blower device 1.
  • the refrigerant circuit includes a compressor, a four-way switching valve, an outdoor heat exchanger, an electric expansion valve, an indoor heat exchanger, an accumulator, and a closing valve.
  • the first embodiment described above includes the motor M1 having the first and second rotors 40 and 50, a motor having only the first rotor 40 may be used.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2005-1718305
  • a back yoke is necessary because parallel-oriented permanent magnets are used in the rotor.
  • the motor can be used without a back yoke
  • the induced voltage is reduced by 35% compared to the case with a back yoke.
  • the back yoke may be provided on the end plate of the blower fan instead of on the rotor side, but in that case, the permanent magnet of the rotor and the shaft are fixed with non-magnetic resin, etc. Therefore, a gap is created between the permanent magnet and the back yoke, increasing leakage magnetic flux.
  • stator core 61 when the stator core 61 is viewed from the axial direction of the rotor 40, the stator core 61 has a portion that overlaps the plate member 24, thereby reducing leakage of magnetic flux on the end plate 21 side of the rotor 40. can do.
  • stator core 61 when the stator core 61 is viewed from the axial direction of the rotor 40, the entire stator core 61 overlaps the plate member 24, compared to when only a part of the stator core 61 overlaps the plate member 24. , leakage of magnetic flux on the end plate 21 side of the rotor 40 can be reduced.
  • both ends of the plate member 24 in the radial direction are bent and embedded in the end plate 21, separation of the plate member 24 from the end plate 21 can be suppressed. In other words, the plate member 24 is less likely to fall off.
  • the center axis of the blower fan 20 and the center axis of the rotor 40 are located on the same line. becomes easier. Therefore, assembly of the blower device 1 can be facilitated.
  • FIG. 14 is an external perspective view of the air blower 2 according to the second embodiment of the present disclosure
  • FIG. 15 is a side view of the air blower 2.
  • the blower device 2 of the second embodiment has the same configuration as the blower device 1 of the first embodiment except for the second blower fan 30.
  • the blower device 2 of the second embodiment includes a first blower fan 20, a second blower fan 30, and an axial gap type motor M1.
  • the first blower fan 20 is an example of a centrifugal fan.
  • a sirocco fan is used as the first blower fan 20.
  • the first blower fan 20 includes a disk-shaped end plate 21, a plurality of blades 22 arranged at circumferential intervals on one surface of the end plate 21, and a plurality of blades 22 opposite to the end plate 21. It has an annular member 23 connecting the sides.
  • the second blower fan 30 includes a disk-shaped end plate 31, a plurality of blades 32 arranged on one surface of the end plate 31 at intervals in the circumferential direction, and an end plate 31 of the plurality of blades 32. It has an annular member 33 connecting the opposite sides.
  • FIG. 16 is an exploded perspective view of the blower device 2 of the second embodiment. As shown in FIG. 16, the end plate 21 of the first blower fan 20 and one disc-shaped first rotor 40 of the motor M1 face each other, and the end plate 31 of the second blower fan 30 and the motor M1 The other disc-shaped second rotor 50 faces the other rotor 50 .
  • the first blower fan 20 also includes an annular plate member 24 provided on the surface of the disk-shaped end plate 21 opposite to the blades 22.
  • the first blower fan 20 has a plate member 24 fixed to the end plate 21 by insert molding.
  • the plate member 24 is made of a steel plate material.
  • the second blower fan 30 has an annular plate member 34 provided on the surface of the disk-shaped end plate 31 opposite to the blades 32.
  • the second blower fan 30 has a plate member 34 fixed to the end plate 31 by insert molding.
  • the plate member 34 is made of steel plate material.
  • FIG. 17 is a perspective view of a cross section taken along line XVII-XVII in FIG. 15.
  • the plate member 24 of the first blower fan 20 and the rotor 40 of the motor M1 are connected by magnetic force.
  • the plate member 34 of the second blower fan 30 and the second rotor 50 of the motor M1 are connected by magnetic force.
  • the first blower fan 20 is fixed to the first rotor 40 of the motor M1 by magnetic force, so the first blower fan 20 can be easily attached and detached.
  • the second blower fan 30 is fixed to the second rotor 50 of the motor M1 by magnetic force, the second blower fan 30 can be easily attached and detached. This improves ease of assembly and maintenance.
  • FIG. 18 is an enlarged sectional view of the main part of FIG. 17. As shown in FIG. 18, the first rotor 40 of the motor M1 is directly connected to the plate member 24 of the first blower fan 20, and the second rotor 50 of the motor M1 is connected to the plate member of the second blower fan 30. It is directly connected to 34.
  • the plate member 34 is formed and arranged similarly to the stator core 61.
  • the entire stator core 61 overlaps the plate member 34. Further, both ends of the plate member 34 in the radial direction are bent and embedded in the end plate 31.
  • the end plate 31 has a recess 31a into which the rotor 50 is fitted, on the end surface on the motor M1 side.
  • This recess 31a is formed such that when the rotor 50 is fitted into the recess 31a, the central axis of the blower fan 20 and the central axis of the rotor 50 are located on the same line.
  • the end plate 31 is formed to have an outer diameter larger than the outer diameter of the rotor 50.
  • the blower device 2 of the second embodiment has the same effects as the blower device 1 of the first embodiment.
  • blower devices 1 and 2 using sirocco fans as the blower fans 20 and 30 have been described, but the present disclosure may be applied to blower devices using other blower fans.
  • the difference between the outer diameter of the plate member 24 and the outer diameter of the stator core 61 is larger than the difference between the inner diameter of the plate member 24 and the inner diameter of the stator core 61. , may be made smaller or may be made equal.
  • stator core 61 when the stator core 61 is viewed from the axial direction of the rotor 40, the entire stator core 61 overlaps the plate member 24; It's okay.
  • stator core 61 when the stator core 61 is viewed from the axial direction of the rotor 40, the entire stator core 61 overlaps the plate member 24, but only a part of the stator core 61 overlaps the plate member 24. You can also do this.
  • the blower device 1 may include a blower fan 120 shown in FIG. 19 instead of the blower fan 20.
  • the blower fan 120 has a disk-shaped end plate 121 formed similarly to the end plate 21 of the first embodiment.
  • An annular plate member 124 made of a steel plate material is provided on the surface of the end plate 121 on the motor M1 side.
  • the plate member 124 includes an annular portion 124a, a stepped portion 124b provided at the inner edge of the annular portion 124a, and a stepped portion provided at the outer edge of the annular portion 124a. 24c.
  • This plate member 124 is formed to have an inner diameter larger than the inner diameter of the stator core 61 and an outer diameter larger than the outer diameter of the stator core 61.
  • stator core 61 and plate member 124 are configured such that plate member 124 covers only a portion of stator core 61 when viewed from the axial direction of blower fan 120 .
  • the blower device 1 may include a blower fan 220 shown in FIG. 20 instead of the blower fan 20.
  • the blower fan 220 has a disc-shaped end plate 221 formed similarly to the end plate 21 of the first embodiment.
  • An annular plate member 224 made of a steel plate material is provided on the surface of the end plate 221 on the motor M1 side.
  • the plate member 224 includes an annular portion 224a, a stepped portion 224b provided at the inner edge of the annular portion 224a, and a stepped portion provided at the outer edge of the annular portion 224a. 224c.
  • This plate member 224 is formed to have an inner diameter smaller than the inner diameter of the stator core 61 and an outer diameter smaller than the outer diameter of the stator core 61.
  • stator core 61 and plate member 224 are configured such that plate member 224 covers only a portion of stator core 61 when viewed from the axial direction of blower fan 220 .
  • the blower device 1 may include a blower fan 320 shown in FIG. 21 instead of the blower fan 20.
  • the blower fan 320 has a disc-shaped end plate 321 formed similarly to the end plate 21 of the first embodiment.
  • An annular plate member 324 made of a steel plate material is provided on the surface of the end plate 321 on the motor M1 side.
  • the plate member 324 includes an annular portion 324a, a stepped portion 324b provided at the inner edge of the annular portion 324a, and a stepped portion provided at the outer edge of the annular portion 324a. 324c.
  • the plate member 324 is formed so that its inner diameter is larger than the inner diameter of the stator core 61 and its outer diameter is smaller than the outer diameter of the stator core 61.
  • stator core 61 and plate member 324 are configured such that plate member 324 covers only a portion of stator core 61 when viewed from the axial direction of blower fan 320 .
  • the plate member 24 has the stepped portion 24b on the inner circumferential edge and the stepped portion 24c on the outer circumferential edge. You can also do this.
  • the blower device 1 may include a blower fan 420 shown in FIG. 22 instead of the blower fan 20.
  • the blower fan 420 has a disk-shaped end plate 421 formed similarly to the end plate 21 of the first embodiment.
  • An annular plate member 424 made of a steel plate material is provided on the surface of the end plate 421 on the motor M1 side.
  • the plate member 424 has an annular portion 424a and a stepped portion 24b provided at the inner edge of the annular portion 424a, but there is a stepped portion at the outer edge of the annular portion 424a.
  • the portion 24c is not provided.
  • the outer diameter of the annular portion 424a is set to be larger than the outer diameter of the recessed portion 21a.
  • At least one of the blower fans 20 and 30 of the blower device 2 of the second embodiment may also be modified like the blower fans 220, 320, and 420.

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

Abstract

A blowing device (10) comprises: a blowing fan (20) that has, on one side in the axial direction, an end plate (21) and a plate member (24) that is provided to the end plate (21) and comprises a ferromagnetic body or a paramagnetic body; and an axial-gap motor (M1) that drives the blowing fan (20) and has rotors (40, 50) that include a magnet member (52) that has polar anisotropic orientation. Rotor (40) of the motor (M1) and the plate member (24) of the blowing fan (20) are connected by magnetic force.

Description

送風装置および空気調和機Blower and air conditioner
　本開示は、送風装置および空気調和機に関する。 The present disclosure relates to a blower device and an air conditioner.
　従来、送風装置としては、電動機の回転子と固定子とが回転子の軸方向に沿って所定の間隔をもって対向配置されたアキシャルギャップ型モータと、そのアキシャルギャップ型モータにより駆動される送風ファンとを備えたものがある(例えば、特開２００５－１７１８３５号公報(特許文献１)参照)。 Conventionally, air blowing devices include an axial gap type motor in which a rotor and a stator of an electric motor are arranged facing each other at a predetermined interval along the axial direction of the rotor, and a blower fan driven by the axial gap type motor. (For example, see Japanese Unexamined Patent Publication No. 2005-171835 (Patent Document 1)).
特開２００５－１７１８３５号公報Japanese Patent Application Publication No. 2005-171835
　上記送風装置の送風ファンは、扇形状のマグネットチップが周方向に複数配置されたエンドプレートを有する。また、上記アキシャルギャップ型モータの回転子は、磁性材料からなるバックヨークと、永久磁石とで構成されている。上記送風装置は、回転子のバックヨークと送風ファンのマグネットチップとの磁石吸引力によりアキシャルギャップ型モータに送風ファンが接続されている。 The blower fan of the blower device has an end plate in which a plurality of fan-shaped magnetic chips are arranged in the circumferential direction. Further, the rotor of the above-mentioned axial gap type motor is composed of a back yoke made of a magnetic material and a permanent magnet. In the above-mentioned blower device, the blower fan is connected to the axial gap type motor by the magnetic attraction force between the back yoke of the rotor and the magnetic chip of the blower fan.
　上記送風装置では、送風ファンのエンドプレートに配置されたマグネットチップに対して回転子の特定の磁極だけ磁力が大きくなるため、コギングトルクや軸方向吸引力のリップルが増加し、運転時の振動や騒音が大きくなるという問題がある。 In the above-mentioned blower, the magnetic force increases only at specific magnetic poles of the rotor with respect to the magnetic chip placed on the end plate of the blower fan, which increases cogging torque and ripples in the axial attraction force, causing vibrations and vibrations during operation. There is a problem of increased noise.
　本開示では、運転時の振動や騒音を抑制できる送風装置およびその送風装置を備えた空気調和機を提案する。 The present disclosure proposes a blower device that can suppress vibration and noise during operation, and an air conditioner equipped with the blower device.
　本開示の第１態様に係る送風装置は、
　端板と、上記端板に設けられた強磁性体または常磁性体からなる板部材とを軸方向の一方に有する送風ファンと、
　上記送風ファンを駆動し、極異方配向の磁石部材を含む回転子を有するアキシャルギャップ型のモータと
を備え、
　上記モータの上記回転子と上記送風ファンの上記板部材とが磁力により連結されている。 The air blower according to the first aspect of the present disclosure includes:
A blower fan having an end plate and a plate member made of a ferromagnetic material or a paramagnetic material provided on the end plate on one side in the axial direction;
an axial gap type motor that drives the blower fan and has a rotor including a polar anisotropically oriented magnet member;
The rotor of the motor and the plate member of the blower fan are connected by magnetic force.
　本第１態様によれば、従来のように特定の磁極だけ磁力が大きくなることがなくなり、コギングトルクの悪化や軸方向吸引力のリップルの悪化を抑制できるので、運転時の振動や騒音を抑制できる。 According to the first aspect, unlike in the past, the magnetic force does not increase only in a specific magnetic pole, and it is possible to suppress deterioration of cogging torque and ripple of axial attraction force, thereby suppressing vibration and noise during operation. can.
　また、本開示の第２態様に係る送風装置では、
　上記第１態様に記載の送風装置において、
　上記モータの上記回転子が上記送風ファンの上記板部材に直接連結されている。 Moreover, in the air blower according to the second aspect of the present disclosure,
In the air blower according to the first aspect,
The rotor of the motor is directly connected to the plate member of the blower fan.
　本第２態様によれば、強固な連結力を得ることができる。 According to the second aspect, a strong connection force can be obtained.
　また、本開示の第３態様に係る送風装置は、
　上記第１態様または第２態様に記載の送風装置において、
　上記アキシャルギャップ型のモータは、上記回転子の軸方向においてエアギャップを介して上記回転子と対向する固定子鉄心を有する固定子を備え、
　上記固定子鉄心を上記回転子の軸方向から見たとき、上記固定子鉄心は、上記板部材に重なる部分を持っている。 Moreover, the air blower according to the third aspect of the present disclosure includes:
In the blower device according to the first aspect or the second aspect,
The axial gap type motor includes a stator having a stator core that faces the rotor through an air gap in the axial direction of the rotor,
When the stator core is viewed from the axial direction of the rotor, the stator core has a portion that overlaps the plate member.
　本第３態様によれば、回転子の端板側における磁束の漏れを低減することができる。 According to the third aspect, leakage of magnetic flux on the end plate side of the rotor can be reduced.
　また、本開示の第４態様に係る送風装置では、
　上記第３態様に記載の送風装置において、
　上記固定子鉄心を上記回転子の軸方向から見たとき、上記固定子鉄心の全部が上記板部材に重なる。 Moreover, in the air blower according to the fourth aspect of the present disclosure,
In the blower device according to the third aspect,
When the stator core is viewed from the axial direction of the rotor, the entire stator core overlaps the plate member.
　本第４態様によれば、固定子鉄心の一部だけが板部材に重なるときと比べて、回転子の端板側における磁束の漏れを低減することができる。 According to the fourth aspect, leakage of magnetic flux on the end plate side of the rotor can be reduced compared to when only a part of the stator core overlaps the plate member.
　また、本開示の第５態様に係る送風装置では、
　上記第１態様から上記第４態様までのいずれか一つに記載の送風装置において、
　上記板部材の径方向の端部が屈曲して上記端板に埋め込まれている。 Moreover, in the air blower according to the fifth aspect of the present disclosure,
In the blower device according to any one of the first aspect to the fourth aspect,
A radial end portion of the plate member is bent and embedded in the end plate.
　本第５態様によれば、端板から板部材が分離するのを抑制することができる。 According to the fifth aspect, separation of the plate member from the end plate can be suppressed.
　また、本開示の第６態様に係る送風装置では、
　上記第１態様から上記第５態様までのいずれか一つに記載の送風装置において、
　上記端板は、上記回転子が嵌まる凹部を上記モータ側の端面に有し、
　上記凹部は、上記凹部に上記回転子を嵌めたときに、上記送風ファンの中心軸と上記回転子の中心軸とが同一線上に位置するように形成されている。 Moreover, in the air blower according to the sixth aspect of the present disclosure,
In the air blower according to any one of the first aspect to the fifth aspect,
The end plate has a recess into which the rotor is fitted, on the end face on the motor side;
The recessed portion is formed such that when the rotor is fitted into the recessed portion, a central axis of the blower fan and a central axis of the rotor are located on the same line.
　本第６態様によれば、送風装置の組み立て作業が容易になる。 According to the sixth aspect, the assembly work of the blower device becomes easy.
　また、本開示の第７態様に係る空気調和機は、
　上記第１態様から上記第６態様までのいずれか一つに記載の送風装置を備える。 Moreover, the air conditioner according to the seventh aspect of the present disclosure includes:
The air blowing device according to any one of the first aspect to the sixth aspect is provided.
　本第７態様によれば、運転時の振動や騒音を抑制できる。 According to the seventh aspect, vibration and noise during operation can be suppressed.
本開示の第１実施形態の送風装置の外観斜視図である。FIG. 1 is an external perspective view of a blower device according to a first embodiment of the present disclosure. 第１実施形態の送風装置の組み立て前の側面図である。FIG. 2 is a side view of the blower device of the first embodiment before assembly. 第１実施形態の送風装置の組み立て後の側面図である。FIG. 2 is a side view of the blower device of the first embodiment after assembly. 第１実施形態の送風装置の分解斜視図である。FIG. 2 is an exploded perspective view of the air blower according to the first embodiment. 第１実施形態の送風装置の第１回転子の平面図である。It is a top view of the 1st rotor of the air blower of 1st Embodiment. 第１実施形態の送風装置の第１回転子の斜視図である。It is a perspective view of the 1st rotor of the air blower of a 1st embodiment. 第１実施形態の送風装置の板部材の平面図である。It is a top view of the plate member of the air blower of 1st Embodiment. 第１実施形態の送風装置の板部材の斜視図である。It is a perspective view of the plate member of the air blower of 1st Embodiment. 第１実施形態の送風装置の固定子の平面図である。It is a top view of the stator of the air blower of 1st Embodiment. 第１実施形態の送風装置の固定子の斜視図である。It is a perspective view of the stator of the air blower of a 1st embodiment. 図２のXI－XI線から見た組み立て前の断面の斜視図である。3 is a perspective view of a cross section before assembly, taken along line XI-XI in FIG. 2. FIG. 図３のXII－XII線から見た組み立て後の断面の斜視図である。4 is a perspective view of a cross section after assembly, taken along line XII-XII in FIG. 3. FIG. 図１２の要部の拡大断面図である。FIG. 13 is an enlarged cross-sectional view of the main part of FIG. 12. 本開示の第２実施形態の送風装置の外観斜視図である。FIG. 2 is an external perspective view of a blower device according to a second embodiment of the present disclosure. 第２実施形態の送風装置の側面図である。It is a side view of the air blower of 2nd Embodiment. 第２実施形態の送風装置の分解斜視図である。It is an exploded perspective view of the air blower of a 2nd embodiment. 図１５のXVII－XVII線から見た断面の斜視図である。16 is a perspective view of a cross section taken along line XVII-XVII in FIG. 15. FIG. 図１７の要部の拡大断面図である。FIG. 18 is an enlarged cross-sectional view of the main part of FIG. 17; 第１実施形態の送風装置の一変形例の要部の拡大断面図である。It is an enlarged sectional view of the principal part of a modification of the blower device of a 1st embodiment. 第１実施形態の送風装置の一変形例の要部の拡大断面図である。It is an enlarged sectional view of the principal part of a modification of the blower device of a 1st embodiment. 第１実施形態の送風装置の一変形例の要部の拡大断面図である。It is an enlarged sectional view of the principal part of a modification of the blower device of a 1st embodiment. 第１実施形態の送風装置の一変形例の要部の拡大断面図である。It is an enlarged sectional view of the principal part of a modification of the blower device of a 1st embodiment.
　以下、実施形態を説明する。なお、図面において、同一の参照番号は、同一部分または相当部分を表わすものである。また、長さ、幅、厚さ、深さ等の図面上の寸法は、図面の明瞭化と簡略化のために実際の尺度から適宜変更されており、実際の相対寸法を表してはいない。 Embodiments will be described below. In addition, in the drawings, the same reference numbers represent the same or corresponding parts. Further, dimensions in the drawings such as length, width, thickness, depth, etc. have been appropriately changed from the actual scale for clarity and simplification of the drawings, and do not represent actual relative dimensions.
　〔第１実施形態〕
　図１は、本開示の第１実施形態の送風装置１の外観斜視図である。 [First embodiment]
FIG. 1 is an external perspective view of a blower device 1 according to a first embodiment of the present disclosure.
　第１実施形態の送風装置１は、図１に示すように、送風ファン２０と、アキシャルギャップ型のモータＭ１とを備えている。送風ファン２０は、遠心ファンの一例である。この実施形態では、送風ファン２０にシロッコファンを用いている。 As shown in FIG. 1, the blower device 1 of the first embodiment includes a blower fan 20 and an axial gap type motor M1. The blower fan 20 is an example of a centrifugal fan. In this embodiment, a sirocco fan is used as the ventilation fan 20.
　送風ファン２０は、円板状の端板２１と、端板２１の一方の面に周方向間隔をあけて配列された複数の羽根２２と、複数の羽根２２の端板２１と反対の側を連結する環状部材２３を有する。 The blower fan 20 includes a disc-shaped end plate 21, a plurality of blades 22 arranged at intervals in the circumferential direction on one surface of the end plate 21, and a side opposite to the end plate 21 of the plurality of blades 22. It has an annular member 23 to be connected.
　図２は、送風装置１の組み立て前の側面図を示し、図３は、送風ファン２０とモータＭ１とを連結した状態の送風装置１の側面図である。 FIG. 2 shows a side view of the blower device 1 before assembly, and FIG. 3 shows a side view of the blower device 1 in a state where the blower fan 20 and the motor M1 are connected.
　図４は、送風装置１の分解斜視図である。図４に示すように、送風ファン２０の板部材２４とモータＭ１の一方の円板状の第１回転子４０とが対向している。板部材２４は、鋼板材料からなる。 FIG. 4 is an exploded perspective view of the blower device 1. As shown in FIG. 4, the plate member 24 of the blower fan 20 and one disc-shaped first rotor 40 of the motor M1 are opposed to each other. The plate member 24 is made of a steel plate material.
　また、送風ファン２０は、送風ファン２０の円板状の端板２１の他方の面に設けられた環状の板部材２４を有する。送風ファン２０は、インサート成形により板部材２４を端板２１に固定している。 Further, the blower fan 20 has an annular plate member 24 provided on the other surface of the disk-shaped end plate 21 of the blower fan 20 . The ventilation fan 20 has a plate member 24 fixed to the end plate 21 by insert molding.
　なお、送風ファン２０の端板２１自体を鋼板材料として端板２１が板部材を兼ねてもよく、また、送風ファン全体が鋼板材料で形成されていてもよい。また、鋼板材料に限らず、強磁性体または常磁性体であればよい。 Note that the end plate 21 of the blower fan 20 itself may be made of a steel plate material, and the end plate 21 may also serve as a plate member, or the entire blower fan may be made of a steel plate material. Further, the material is not limited to steel plate material, and any material may be ferromagnetic or paramagnetic.
　上記モータＭ１は、円板状の第１,第２回転子４０,５０と、第１回転子４０を回転可能に支持する第１軸受４４と、第２回転子５０を回転可能に支持する第２軸受５４と、第１,第２回転子４０,５０に軸方向両方から挟まれた固定子６０とを有する。 The motor M1 includes first and second disc-shaped rotors 40 and 50, a first bearing 44 that rotatably supports the first rotor 40, and a first bearing 44 that rotatably supports the second rotor 50. It has two bearings 54 and a stator 60 sandwiched between the first and second rotors 40 and 50 from both axial directions.
　図５は、送風装置１の第１回転子４０の平面図であり、図６は、送風装置１の第１回転子４０の斜視図である。なお、第２回転子５０は、第１回転子４０と同一の構成をしている。 5 is a plan view of the first rotor 40 of the air blower 1, and FIG. 6 is a perspective view of the first rotor 40 of the air blower 1. Note that the second rotor 50 has the same configuration as the first rotor 40.
　第１回転子４０は、図５,図６に示すように、中央部分に設けられた固定部４１と、固定部４１の外周に設けられた円板状の磁石部材４２とを有する。固定部４１の円穴４２ａの内周に第１軸受４４(図４に示す)が固定される。 As shown in FIGS. 5 and 6, the first rotor 40 includes a fixed part 41 provided in the center and a disc-shaped magnet member 42 provided on the outer periphery of the fixed part 41. A first bearing 44 (shown in FIG. 4) is fixed to the inner periphery of the circular hole 42a of the fixed part 41.
　円板状の磁石部材４２は、極異方配向のプラスチックマグネットである。磁石部材４２では、周方向にＳ極とＮ極が交互に配置されている。このような磁石部材４２では、固定子６０と対向する面の反対の側の面からの漏れ磁束が、パラレル配向の永久磁石を用いた場合に比べて非常に小さいので、この実施形態ではバックヨークを用いていない。 The disc-shaped magnet member 42 is a polar anisotropically oriented plastic magnet. In the magnet member 42, S poles and N poles are alternately arranged in the circumferential direction. In such a magnet member 42, the leakage magnetic flux from the surface opposite to the surface facing the stator 60 is very small compared to the case where parallel-oriented permanent magnets are used, so in this embodiment, the back yoke is is not used.
　図７は、送風ファン２０の板部材２４の平面図であり、図８は、送風装置１の板部材２４の斜視図である。 7 is a plan view of the plate member 24 of the blower fan 20, and FIG. 8 is a perspective view of the plate member 24 of the blower device 1.
　板部材２４は、図７,図８に示すように、環状部２４ａと、環状部２４ａの内縁部に設けられた段差部２４ｂと、環状部２４ａの外縁部に設けられた段差部２４ｃとを有する。 As shown in FIGS. 7 and 8, the plate member 24 includes an annular portion 24a, a step portion 24b provided at the inner edge of the annular portion 24a, and a step portion 24c provided at the outer edge of the annular portion 24a. have
　この実施形態では、板部材２４は、鋼板材料からなり、第１回転子４０の磁石部材４２のバックヨークとしても作用し、誘起電圧を増加させて回転性能を向上できる。 In this embodiment, the plate member 24 is made of a steel plate material, and also acts as a back yoke for the magnet member 42 of the first rotor 40, increasing the induced voltage and improving rotation performance.
　なお、板部材２４は、鋼板材料に限らず、強磁性体または常磁性体であればよい。また、板部材２４を極異方配向のプラスチックマグネットとしてもよく、この場合は、送風ファンの羽根と板部材とを２色成形により製作できる。 Note that the plate member 24 is not limited to a steel plate material, and may be any material as long as it is a ferromagnetic material or a paramagnetic material. Further, the plate member 24 may be a polar anisotropically oriented plastic magnet, and in this case, the blades of the blower fan and the plate member can be manufactured by two-color molding.
　送風ファンの羽根と板部材とを２色成形により製作することによって、インサート成形よりも板部材と端板との同心度が向上するので、回転子と送風ファンの回転時のブレが減少し、運転時の騒音や振動をさらに低減できる。 By manufacturing the blades and plate members of the blower fan using two-color molding, the concentricity between the plate member and the end plate is improved compared to insert molding, which reduces vibration when the rotor and the blower fan rotate. Noise and vibration during operation can be further reduced.
　図９は、固定子６０の平面図であり、図１０は、固定子６０の斜視図である。 9 is a plan view of the stator 60, and FIG. 10 is a perspective view of the stator 60.
　固定子６０は、図９,図１０に示すように、周方向に間隔をあけて配置された固定子鉄心６１と、固定子鉄心６１に巻回されたコイル６２と、中央に軸方向に固定されたシャフト６３と、固定子鉄心６１とコイル６２とシャフト６３とが樹脂モールドされた円板形状のモールド部６４と、固定子鉄心６１とコイル６２とを絶縁するインシュレータ６５とを有する。固定子鉄心６１は、第１回転子４０の軸方向にエアギャップＧ１を介して第１回転子４０と対向すると共に、第２回転子５０の軸方向にエアギャップＧ２を介して第２回転子５０と対向する(図１３参照)。エアギャップＧ１,Ｇ２は、例えば０．５ｍｍ～１ｍｍである。 As shown in FIGS. 9 and 10, the stator 60 includes a stator core 61 arranged at intervals in the circumferential direction, a coil 62 wound around the stator core 61, and a coil 62 fixed in the axial direction at the center. The stator core 61 , the coil 62 , and the shaft 63 are resin-molded into a disc-shaped molded part 64 , and an insulator 65 that insulates the stator core 61 and the coil 62 . The stator core 61 faces the first rotor 40 in the axial direction of the first rotor 40 via an air gap G1, and faces the second rotor 40 in the axial direction of the second rotor 50 via an air gap G2. 50 (see Figure 13). The air gaps G1 and G2 are, for example, 0.5 mm to 1 mm.
　図１１は、図２のXI－XI線から見た断面の斜視図であり、図１２は、図３のXII－XII線から見た断面図である。 11 is a perspective view of a cross section taken along the line XI-XI in FIG. 2, and FIG. 12 is a cross-sectional view taken along the line XII-XII in FIG. 3.
　図１２に示すように、送風ファン２０の板部材２４とモータＭ１の第１回転子４０とが、磁石部材４２の磁力により連結される。 As shown in FIG. 12, the plate member 24 of the blower fan 20 and the first rotor 40 of the motor M1 are connected by the magnetic force of the magnet member 42.
　上記送風装置１では、送風ファン２０をモータＭ１の第１回転子４０に磁力により固定しているので、送風ファン２０の着脱が容易にできる。これにより、組立性、メンテナンス性が向上する。 In the above-mentioned blower device 1, since the blower fan 20 is fixed to the first rotor 40 of the motor M1 by magnetic force, the blower fan 20 can be easily attached and detached. This improves ease of assembly and maintenance.
　図１３は、図１２の要部の拡大断面図である。図１３に示すように、モータＭ１の第１回転子４０を送風ファン２０の板部材２４に直接連結している。 FIG. 13 is an enlarged sectional view of the main part of FIG. 12. As shown in FIG. 13, the first rotor 40 of the motor M1 is directly connected to the plate member 24 of the blower fan 20. As shown in FIG.
　固定子鉄心６１は、回転子４０の軸方向においてエアギャップＧ１を介して回転子４０と対向する。この固定子鉄心６１を回転子４０の軸方向から見たとき、固定子鉄心６１の全部が、板部材２４に重なる。別の言い方をすると、板部材２４の内径は、固定子鉄心６１の内径よりも小さく、かつ、板部材２４の外径は、固定子鉄心６１の外径よりも大きくなるように、板部材２４が形成されている。また、板部材２４の外径と固定子鉄心６１の外径との差は、板部材２４の内径と固定子鉄心６１の内径との差よりも大きくなっている。 The stator core 61 faces the rotor 40 with an air gap G1 in between in the axial direction of the rotor 40. When this stator core 61 is viewed from the axial direction of the rotor 40, the entire stator core 61 overlaps the plate member 24. In other words, the plate member 24 is arranged such that the inner diameter of the plate member 24 is smaller than the inner diameter of the stator core 61 and the outer diameter of the plate member 24 is larger than the outer diameter of the stator core 61. is formed. Further, the difference between the outer diameter of the plate member 24 and the outer diameter of the stator core 61 is larger than the difference between the inner diameter of the plate member 24 and the inner diameter of the stator core 61.
　板部材２４の径方向の両端部は屈曲して端板２１に埋め込まれている。より詳しくは、板部材２４の内周縁部において、段差部２４ｂは、環状部２４ａの径方向内側の端部から回転子４０とは反対側に延びた後、端板２１の径方向内側に向かって延びている。一方、板部材２４の外周縁部において、段差部２４ｃは、環状部２４ａの径方向外側の端部から回転子４０とは反対側に延びた後、端板２１の径方向外側に向かって延びている。このような段差部２４ｂ,２４ｃは、送風ファン２０の形成時、端板２１の材料である樹脂で覆われて、端板２１から露出しなくなる。 Both ends of the plate member 24 in the radial direction are bent and embedded in the end plate 21. More specifically, in the inner circumferential edge of the plate member 24, the stepped portion 24b extends from the radially inner end of the annular portion 24a to the side opposite to the rotor 40, and then extends toward the radially inner side of the end plate 21. It extends. On the other hand, in the outer peripheral edge of the plate member 24, the stepped portion 24c extends from the radially outer end of the annular portion 24a to the side opposite to the rotor 40, and then extends toward the radially outer side of the end plate 21. ing. Such step portions 24b and 24c are covered with resin, which is the material of the end plate 21, when the blower fan 20 is formed, and are no longer exposed from the end plate 21.
　端板２１は、回転子４０が嵌まる凹部２１ａをモータＭ１側の端面に有する。この凹部２１ａの底面は、第１部分と、この第１部分よりも径方向外側に設けられた第２部分とを有する。この第１部分よりも、第２部分の方が、固定子６０に近くなるように配置される。別の言い方をすると、第１部分は、第２部分に対して、固定子６０とは反対側に位置する。また、第２部分からは、環状部２４ａの一部が露出している。別の言い方をすれば、第２部分は、環状部２４ａの回転子４０側の面を含む。このような凹部２１ａに回転子４０を嵌めると、回転子４０の固定部４１が凹部２１ａの第１部分に接触し、かつ、回転子４０の磁石部材４２のうちの比較的薄い部分が凹部２１ａの第２部分に接触し、かつ、回転子４０の磁石部材４２の外周面が凹部２１ａの側面に接触する。また、凹部２１ａに回転子４０を嵌めたときに、送風ファン２０の中心軸と回転子４０の中心軸とが同一線上に位置するように、凹部２１ａが形成されている。また、端板２１は、外径が回転子４０の外径よりも大きくなるように形成されている。また、凹部２１ａに回転子４０を嵌めていないときは、板部材２４の環状部２４ａが露出する。 The end plate 21 has a recess 21a into which the rotor 40 is fitted, on the end surface on the motor M1 side. The bottom surface of the recess 21a has a first portion and a second portion provided radially outward from the first portion. The second portion is arranged closer to the stator 60 than the first portion. In other words, the first portion is located on the opposite side of the stator 60 with respect to the second portion. Further, a portion of the annular portion 24a is exposed from the second portion. In other words, the second portion includes the surface of the annular portion 24a on the rotor 40 side. When the rotor 40 is fitted into such a recess 21a, the fixed part 41 of the rotor 40 contacts the first part of the recess 21a, and the relatively thin part of the magnet member 42 of the rotor 40 comes into contact with the recess 21a. The outer peripheral surface of the magnet member 42 of the rotor 40 contacts the side surface of the recess 21a. Further, the recess 21a is formed such that when the rotor 40 is fitted into the recess 21a, the central axis of the blower fan 20 and the central axis of the rotor 40 are located on the same line. Further, the end plate 21 is formed to have an outer diameter larger than the outer diameter of the rotor 40. Furthermore, when the rotor 40 is not fitted into the recess 21a, the annular portion 24a of the plate member 24 is exposed.
　上記第１実施形態の送風装置１によれば、モータＭ１の第１回転子４０と送風ファン２０の板部材２４とを、極異方配向のプラスチックマグネットの磁力により連結することによって、従来のようにマグネットチップを使用しているために特定の磁極だけ磁力が大きくなるということがなくなり、コギングトルクの悪化や軸方向吸引力のリップルの悪化を抑制できる。これにより、運転時の振動や騒音を抑制できる。 According to the blower device 1 of the first embodiment, the first rotor 40 of the motor M1 and the plate member 24 of the blower fan 20 are connected by the magnetic force of the polar-anisotropically oriented plastic magnets. Since a magnetic chip is used in the magnet, the magnetic force does not increase only at a specific magnetic pole, and it is possible to suppress deterioration of cogging torque and ripple in the axial attraction force. This makes it possible to suppress vibration and noise during operation.
　また、モータＭ１の第１回転子４０を送風ファン２０の板部材２４に直接連結することによって、強固な連結力を得ることができる。 Further, by directly connecting the first rotor 40 of the motor M1 to the plate member 24 of the blower fan 20, a strong connection force can be obtained.
　この送風装置１を備える空気調和機では、送風装置１の運転時の振動や騒音を抑制でき、低騒音な空気調和機を実現できる。 In an air conditioner equipped with this blower device 1, vibration and noise during operation of the blower device 1 can be suppressed, and a low-noise air conditioner can be realized.
　上記空気調和機の一例としては、図示しないが、室内機と、この室内機に冷媒回路を介して接続された室外機とを備えている。この室内機が送風装置１を備えてもよい。なお、上記冷媒回路は、圧縮機と、四路切換弁と、室外熱交換器と、電動膨張弁と、室内熱交換器と、アキュムレータと、閉鎖弁とを有する。 Although not shown, an example of the air conditioner includes an indoor unit and an outdoor unit connected to the indoor unit via a refrigerant circuit. This indoor unit may include the blower device 1. Note that the refrigerant circuit includes a compressor, a four-way switching valve, an outdoor heat exchanger, an electric expansion valve, an indoor heat exchanger, an accumulator, and a closing valve.
　上記第１実施形態では、第１,第２回転子４０,５０を有するモータＭ１を備えたが、第１回転子４０のみを有するモータを用いてもよい。 Although the first embodiment described above includes the motor M1 having the first and second rotors 40 and 50, a motor having only the first rotor 40 may be used.
　先行技術の送風装置(特許文献１(特開２００５－１７１８３５号公報))では、回転子にパラレル配向の永久磁石を使用しているためにバックヨークが必要である。なお、バックヨークなしでもモータとして成り立つが、バックヨークありと比べると誘起電圧が３５％低下する。上記先行技術の送風装置において、回転子側ではなく送風ファンのエンドプレートにバックヨークを持たせてもよいが、その場合は回転子の永久磁石とシャフトとを非磁性体の樹脂などで固定するため、永久磁石とバックヨークとの間に隙間が生じて漏れ磁束が大きくなる。 In the prior art blower device (Patent Document 1 (Japanese Unexamined Patent Publication No. 2005-171835)), a back yoke is necessary because parallel-oriented permanent magnets are used in the rotor. Although the motor can be used without a back yoke, the induced voltage is reduced by 35% compared to the case with a back yoke. In the blower device of the prior art described above, the back yoke may be provided on the end plate of the blower fan instead of on the rotor side, but in that case, the permanent magnet of the rotor and the shaft are fixed with non-magnetic resin, etc. Therefore, a gap is created between the permanent magnet and the back yoke, increasing leakage magnetic flux.
　これに対して、第１実施形態の送風装置１では、極異方配向の永久磁石を使用するため、漏れ磁束を小さくできる。 On the other hand, in the air blower 1 of the first embodiment, since permanent magnets with polar anisotropic orientation are used, leakage magnetic flux can be reduced.
　また、固定子鉄心６１を回転子４０の軸方向から見たとき、固定子鉄心６１は、板部材２４に重なる部分を持っているので、回転子４０の端板２１側における磁束の漏れを低減することができる。 Furthermore, when the stator core 61 is viewed from the axial direction of the rotor 40, the stator core 61 has a portion that overlaps the plate member 24, thereby reducing leakage of magnetic flux on the end plate 21 side of the rotor 40. can do.
　また、固定子鉄心６１を回転子４０の軸方向から見たとき、固定子鉄心６１の全部が板部材２４に重なるので、固定子鉄心６１の一部だけが板部材２４に重なるときと比べて、回転子４０の端板２１側における磁束の漏れを低減することができる。 Furthermore, when the stator core 61 is viewed from the axial direction of the rotor 40, the entire stator core 61 overlaps the plate member 24, compared to when only a part of the stator core 61 overlaps the plate member 24. , leakage of magnetic flux on the end plate 21 side of the rotor 40 can be reduced.
　また、板部材２４の径方向の両端部が屈曲して端板２１に埋め込まれているので、端板２１から板部材２４が分離するのを抑制することができる。別の言い方をすると、板部材２４の脱落が起き難くなっている。 Furthermore, since both ends of the plate member 24 in the radial direction are bent and embedded in the end plate 21, separation of the plate member 24 from the end plate 21 can be suppressed. In other words, the plate member 24 is less likely to fall off.
　端板２１の凹部２１ａに回転子４０を嵌めたとき、送風ファン２０の中心軸と回転子４０の中心軸とが同一線上に位置するので、送風ファン２０にモータＭ１を組み付けるときの芯出し作業が容易となる。したがって、送風装置１の組み立てを容易化することができる。 When the rotor 40 is fitted into the recess 21a of the end plate 21, the center axis of the blower fan 20 and the center axis of the rotor 40 are located on the same line. becomes easier. Therefore, assembly of the blower device 1 can be facilitated.
　〔第２実施形態〕
　図１４は、本開示の第２実施形態の送風装置２の外観斜視図であり、図１５は、送風装置２の側面図である。この第２実施形態の送風装置２は、第２の送風ファン３０を除いて第1実施形態の送風装置1と同一の構成をしている。 [Second embodiment]
FIG. 14 is an external perspective view of the air blower 2 according to the second embodiment of the present disclosure, and FIG. 15 is a side view of the air blower 2. The blower device 2 of the second embodiment has the same configuration as the blower device 1 of the first embodiment except for the second blower fan 30.
　第２実施形態の送風装置２は、図１４に示すように、第１の送風ファン２０と、第２の送風ファン３０と、アキシャルギャップ型のモータＭ１とを備えている。第１の送風ファン２０は、遠心ファンの一例である。この実施形態では、第１の送風ファン２０にシロッコファンを用いている。 As shown in FIG. 14, the blower device 2 of the second embodiment includes a first blower fan 20, a second blower fan 30, and an axial gap type motor M1. The first blower fan 20 is an example of a centrifugal fan. In this embodiment, a sirocco fan is used as the first blower fan 20.
　第１の送風ファン２０は、円板状の端板２１と、端板２１の一方の面に周方向間隔をあけて配列された複数の羽根２２と、複数の羽根２２の端板２１と反対の側を連結する環状部材２３を有する。 The first blower fan 20 includes a disk-shaped end plate 21, a plurality of blades 22 arranged at circumferential intervals on one surface of the end plate 21, and a plurality of blades 22 opposite to the end plate 21. It has an annular member 23 connecting the sides.
　第２の送風ファン３０は、円板状の端板３１と、端板３１の一方の面に周方向に間隔をあけて配列された複数の羽根３２と、複数の羽根３２の端板３１と反対の側を連結する環状部材３３を有する。 The second blower fan 30 includes a disk-shaped end plate 31, a plurality of blades 32 arranged on one surface of the end plate 31 at intervals in the circumferential direction, and an end plate 31 of the plurality of blades 32. It has an annular member 33 connecting the opposite sides.
　図１６は、第２実施形態の送風装置２の分解斜視図である。図１６に示すように、第１の送風ファン２０の端板２１とモータＭ１の一方の円板状の第１回転子４０とが対向し、第２の送風ファン３０の端板３１とモータＭ１の他方の円板状の第２回転子５０とが対向している。 FIG. 16 is an exploded perspective view of the blower device 2 of the second embodiment. As shown in FIG. 16, the end plate 21 of the first blower fan 20 and one disc-shaped first rotor 40 of the motor M1 face each other, and the end plate 31 of the second blower fan 30 and the motor M1 The other disc-shaped second rotor 50 faces the other rotor 50 .
　また、第１の送風ファン２０は、円板状の端板２１の羽根２２と反対側の面に設けられた環状の板部材２４を有する。第１の送風ファン２０は、インサート成形により板部材２４を端板２１に固定している。板部材２４は、鋼板材料からなる。 The first blower fan 20 also includes an annular plate member 24 provided on the surface of the disk-shaped end plate 21 opposite to the blades 22. The first blower fan 20 has a plate member 24 fixed to the end plate 21 by insert molding. The plate member 24 is made of a steel plate material.
　第２の送風ファン３０は、円板状の端板３１の羽根３２と反対側の面に設けられた環状の板部材３４を有する。第２の送風ファン３０は、インサート成形により板部材３４を端板３１に固定している。板部材３４は、鋼板材料からなる。 The second blower fan 30 has an annular plate member 34 provided on the surface of the disk-shaped end plate 31 opposite to the blades 32. The second blower fan 30 has a plate member 34 fixed to the end plate 31 by insert molding. The plate member 34 is made of steel plate material.
　図１７は、図１５のXVII－XVII線から見た断面の斜視図である。 FIG. 17 is a perspective view of a cross section taken along line XVII-XVII in FIG. 15.
　図１７に示すように、第１の送風ファン２０の板部材２４とモータＭ１の回転子４０とが磁力により連結されている。 As shown in FIG. 17, the plate member 24 of the first blower fan 20 and the rotor 40 of the motor M1 are connected by magnetic force.
　同様に、第２の送風ファン３０の板部材３４とモータＭ１の第２回転子５０とが磁力により連結されている。 Similarly, the plate member 34 of the second blower fan 30 and the second rotor 50 of the motor M1 are connected by magnetic force.
　上記送風装置２では、第１の送風ファン２０をモータＭ１の第１回転子４０に磁力により固定しているので、第１の送風ファン２０の着脱が容易にできる。同様に、第２の送風ファン３０をモータＭ１の第２回転子５０に磁力により固定しているので、第２の送風ファン３０の着脱が容易にできる。これにより、組立性、メンテナンス性が向上する。 In the blower device 2, the first blower fan 20 is fixed to the first rotor 40 of the motor M1 by magnetic force, so the first blower fan 20 can be easily attached and detached. Similarly, since the second blower fan 30 is fixed to the second rotor 50 of the motor M1 by magnetic force, the second blower fan 30 can be easily attached and detached. This improves ease of assembly and maintenance.
　図１８は、図１７の要部の拡大断面図である。図１８に示すように、モータＭ１の第１回転子４０を第１の送風ファン２０の板部材２４に直接連結すると共に、モータＭ１の第２回転子５０を第２の送風ファン３０の板部材３４に直接連結している。 FIG. 18 is an enlarged sectional view of the main part of FIG. 17. As shown in FIG. 18, the first rotor 40 of the motor M1 is directly connected to the plate member 24 of the first blower fan 20, and the second rotor 50 of the motor M1 is connected to the plate member of the second blower fan 30. It is directly connected to 34.
　板部材３４は、固定子鉄心６１と同様に形成および配置されている。例えば、固定子鉄心６１を回転子４０の軸方向から見たとき、固定子鉄心６１の全部が、板部材３４に重なる。また、板部材３４の径方向の両端部は屈曲して端板３１に埋め込まれている。 The plate member 34 is formed and arranged similarly to the stator core 61. For example, when the stator core 61 is viewed from the axial direction of the rotor 40, the entire stator core 61 overlaps the plate member 34. Further, both ends of the plate member 34 in the radial direction are bent and embedded in the end plate 31.
　端板３１は、回転子５０が嵌まる凹部３１ａをモータＭ１側の端面に有する。この凹部３１ａは、凹部３１ａに回転子５０を嵌めたときに、送風ファン２０の中心軸と回転子５０の中心軸とが同一線上に位置するように形成されている。また、端板３１は、外径が回転子５０の外径よりも大きくなるように形成されている。 The end plate 31 has a recess 31a into which the rotor 50 is fitted, on the end surface on the motor M1 side. This recess 31a is formed such that when the rotor 50 is fitted into the recess 31a, the central axis of the blower fan 20 and the central axis of the rotor 50 are located on the same line. Further, the end plate 31 is formed to have an outer diameter larger than the outer diameter of the rotor 50.
　上記第２実施形態の送風装置２は、第１実施形態の送風装置１と同様の効果を有する。 The blower device 2 of the second embodiment has the same effects as the blower device 1 of the first embodiment.
　上記第１,第２実施形態では、送風ファン２０,３０にシロッコファンを用いた送風装置１,２について説明したが、他の送風ファンを用いた送風装置に本開示を適用してもよい。 In the first and second embodiments described above, the blower devices 1 and 2 using sirocco fans as the blower fans 20 and 30 have been described, but the present disclosure may be applied to blower devices using other blower fans.
　本開示の具体的な実施の形態について説明したが、本開示は上記第１,第２実施形態に限定されるものではなく、本開示の範囲内で種々変更して実施することができる。 Although specific embodiments of the present disclosure have been described, the present disclosure is not limited to the first and second embodiments described above, and can be implemented with various changes within the scope of the present disclosure.
　例えば、上記第１実施形態では、板部材２４の外径と固定子鉄心６１の外径との差は、板部材２４の内径と固定子鉄心６１の内径との差よりも大きくなっていたが、小さくなるようにしてもよいし、等しくなるようにしてもよい。 For example, in the first embodiment, the difference between the outer diameter of the plate member 24 and the outer diameter of the stator core 61 is larger than the difference between the inner diameter of the plate member 24 and the inner diameter of the stator core 61. , may be made smaller or may be made equal.
　上記第１実施形態では、固定子鉄心６１を回転子４０の軸方向から見たとき、固定子鉄心６１は、全部が板部材２４に重なっていたが、全部が板部材２４に重ならないようにしてもよい。 In the first embodiment, when the stator core 61 is viewed from the axial direction of the rotor 40, the entire stator core 61 overlaps the plate member 24; It's okay.
　上記第１実施形態では、固定子鉄心６１を回転子４０の軸方向から見たとき、固定子鉄心６１は、全部が板部材２４に重なっていたが、一部だけが板部材２４に重なるようにしてもよい。 In the first embodiment, when the stator core 61 is viewed from the axial direction of the rotor 40, the entire stator core 61 overlaps the plate member 24, but only a part of the stator core 61 overlaps the plate member 24. You can also do this.
　例えば、送風装置１は、送風ファン２０に換えて、図１９に示す送風ファン１２０を備えてもよい。 For example, the blower device 1 may include a blower fan 120 shown in FIG. 19 instead of the blower fan 20.
　送風ファン１２０は、上記第１実施形態の端板２１と同様に形成された円板状の端板１２１を有する。この端板１２１のモータＭ１側の面には、鋼板材料からなる環状の板部材１２４が設けられている。 The blower fan 120 has a disk-shaped end plate 121 formed similarly to the end plate 21 of the first embodiment. An annular plate member 124 made of a steel plate material is provided on the surface of the end plate 121 on the motor M1 side.
　板部材１２４は、上記第１実施形態の板部材２４と同様に、環状部１２４ａと、環状部１２４ａの内縁部に設けられた段差部１２４ｂと、環状部１２４ａの外縁部に設けられた段差部２４ｃとを有する。この板部材１２４は、内径が固定子鉄心６１の内径よりも大きく、かつ、外径が固定子鉄心６１の外径よりも大きくなるように形成されている。これにより、固定子鉄心６１および板部材１２４は、送風ファン１２０の軸方向から見たとき、板部材１２４が固定子鉄心６１の一部のみ覆うように構成されている。 Similar to the plate member 24 of the first embodiment, the plate member 124 includes an annular portion 124a, a stepped portion 124b provided at the inner edge of the annular portion 124a, and a stepped portion provided at the outer edge of the annular portion 124a. 24c. This plate member 124 is formed to have an inner diameter larger than the inner diameter of the stator core 61 and an outer diameter larger than the outer diameter of the stator core 61. Thereby, stator core 61 and plate member 124 are configured such that plate member 124 covers only a portion of stator core 61 when viewed from the axial direction of blower fan 120 .
　あるいは、送風装置１は、送風ファン２０に換えて、図２０に示す送風ファン２２０を備えてもよい。 Alternatively, the blower device 1 may include a blower fan 220 shown in FIG. 20 instead of the blower fan 20.
　送風ファン２２０は、上記第１実施形態の端板２１と同様に形成された円板状の端板２２１を有する。この端板２２１のモータＭ１側の面には、鋼板材料からなる環状の板部材２２４が設けられている。 The blower fan 220 has a disc-shaped end plate 221 formed similarly to the end plate 21 of the first embodiment. An annular plate member 224 made of a steel plate material is provided on the surface of the end plate 221 on the motor M1 side.
　板部材２２４は、上記第１実施形態の板部材２４と同様に、環状部２２４ａと、環状部２２４ａの内縁部に設けられた段差部２２４ｂと、環状部２２４ａの外縁部に設けられた段差部２２４ｃとを有する。この板部材２２４は、内径が固定子鉄心６１の内径よりも小さく、かつ、外径が固定子鉄心６１の外径よりも小さくなるように形成されている。これにより、固定子鉄心６１および板部材２２４は、送風ファン２２０の軸方向から見たとき、板部材２２４が固定子鉄心６１の一部のみ覆うように構成されている。 Similar to the plate member 24 of the first embodiment, the plate member 224 includes an annular portion 224a, a stepped portion 224b provided at the inner edge of the annular portion 224a, and a stepped portion provided at the outer edge of the annular portion 224a. 224c. This plate member 224 is formed to have an inner diameter smaller than the inner diameter of the stator core 61 and an outer diameter smaller than the outer diameter of the stator core 61. Thereby, stator core 61 and plate member 224 are configured such that plate member 224 covers only a portion of stator core 61 when viewed from the axial direction of blower fan 220 .
　あるいは、送風装置１は、送風ファン２０に換えて、図２１に示す送風ファン３２０を備えてもよい。 Alternatively, the blower device 1 may include a blower fan 320 shown in FIG. 21 instead of the blower fan 20.
　送風ファン３２０は、上記第１実施形態の端板２１と同様に形成された円板状の端板３２１を有する。この端板３２１のモータＭ１側の面には、鋼板材料からなる環状の板部材３２４が設けられている。 The blower fan 320 has a disc-shaped end plate 321 formed similarly to the end plate 21 of the first embodiment. An annular plate member 324 made of a steel plate material is provided on the surface of the end plate 321 on the motor M1 side.
　板部材３２４は、上記第１実施形態の板部材２４と同様に、環状部３２４ａと、環状部３２４ａの内縁部に設けられた段差部３２４ｂと、環状部３２４ａの外縁部に設けられた段差部３２４ｃとを有する。この板部材３２４は、この板部材３２４は、内径が固定子鉄心６１の内径よりも大きく、かつ、外径が固定子鉄心６１の外径よりも小さくなるように形成されている。これにより、固定子鉄心６１および板部材３２４は、送風ファン３２０の軸方向から見たとき、板部材３２４が固定子鉄心６１の一部のみ覆うように構成されている。 Similar to the plate member 24 of the first embodiment, the plate member 324 includes an annular portion 324a, a stepped portion 324b provided at the inner edge of the annular portion 324a, and a stepped portion provided at the outer edge of the annular portion 324a. 324c. The plate member 324 is formed so that its inner diameter is larger than the inner diameter of the stator core 61 and its outer diameter is smaller than the outer diameter of the stator core 61. Thereby, stator core 61 and plate member 324 are configured such that plate member 324 covers only a portion of stator core 61 when viewed from the axial direction of blower fan 320 .
　上記第１実施形態では、板部材２４は、段差部２４ｂを内周縁部に有する一方、段差部２４ｃを外周縁部に有していたが、段差部２４ｂ,２４ｃの少なくとも一方を有さないようにしてもよい。 In the first embodiment, the plate member 24 has the stepped portion 24b on the inner circumferential edge and the stepped portion 24c on the outer circumferential edge. You can also do this.
　例えば、送風装置１は、送風ファン２０に換えて、図２２に示す送風ファン４２０を備えてもよい。 For example, the blower device 1 may include a blower fan 420 shown in FIG. 22 instead of the blower fan 20.
　送風ファン４２０は、上記第１実施形態の端板２１と同様に形成された円板状の端板４２１を有する。この端板４２１のモータＭ１側の面には、鋼板材料からなる環状の板部材４２４が設けられている。 The blower fan 420 has a disk-shaped end plate 421 formed similarly to the end plate 21 of the first embodiment. An annular plate member 424 made of a steel plate material is provided on the surface of the end plate 421 on the motor M1 side.
　板部材４２４は、上記第１実施形態の板部材２４と同様に、環状部４２４ａと、環状部４２４ａの内縁部に設けられた段差部２４ｂとを有するが、環状部４２４ａの外縁部には段差部２４ｃが設けられていない。また、環状部４２４ａの外径は、凹部２１ａの外径よりも大きくなるように設定されている。 Like the plate member 24 of the first embodiment, the plate member 424 has an annular portion 424a and a stepped portion 24b provided at the inner edge of the annular portion 424a, but there is a stepped portion at the outer edge of the annular portion 424a. The portion 24c is not provided. Further, the outer diameter of the annular portion 424a is set to be larger than the outer diameter of the recessed portion 21a.
　上記第２実施形態の送風装置２の送風ファン２０,３０の少なくとも一方においても、送風ファン２２０,３２０,４２０のような変形を行ってもよい。 At least one of the blower fans 20 and 30 of the blower device 2 of the second embodiment may also be modified like the blower fans 220, 320, and 420.
　１,２…送風装置
　２０,１２０,２２０,３２０,４２０…送風ファン
　２１,１２１,２２１,３２１,４２１…円板状の端板
　２１ａ…凹部
　２２…羽根
　２３…環状部材
　２４,１２４,２２４,３２４,４２４…板部材
　３０…送風ファン
　３１…円板状の端板
　３１ａ…凹部
　３２…羽根
　３３…環状部材
　３４…板部材
　４０…第１回転子
　４１…固定部
　４２…円板状の磁石部材
　４２ａ…円穴
　４４…第１軸受
　５０…第２回転子
　５１…固定部
　５２…円板状の磁石部材
　５２ａ…円穴
　５４…第２軸受
　６０…固定子
　６１…固定子鉄心
　６２…コイル
　６３…シャフト
　６４…モールド部
　６５…インシュレータ
　Ｍ１…モータ 1, 2...Blower device 20,120,220,320,420...Blower fan 21,121,221,321,421...Disc-shaped end plate 21a...Recessed portion 22...Blade 23...Annular member 24,124,224, 324,424...Plate member 30...Blower fan 31...Disc-shaped end plate 31a...Recessed portion 32...Blade 33...Annular member 34...Plate member 40...First rotor 41...Fixed part 42...Disc-shaped magnet member 42a...Circular hole 44...First bearing 50...Second rotor 51...Fixed portion 52...Disc-shaped magnet member 52a...Circular hole 54...Second bearing 60...Stator 61...Stator core 62...Coil 63... Shaft 64...Mold part 65...Insulator M1...Motor

Claims (7)

  1. 　端板(２１,３１,１２１,２２１,３２１,４２１)と、上記端板(２１,３１)に設けられた強磁性体または常磁性体からなる板部材(２４,３４,１２４,２２４,３２４,４２４)とを軸方向の一方に有する送風ファン(２０,３０,１２０,２２０,３２０,４２０)と、
    　上記送風ファン(２０,３０,１２０,２２０,３２０,４２０)を駆動し、極異方配向の磁石部材(４２,５２)を含む回転子(４０,５０)を有するアキシャルギャップ型のモータ(Ｍ１)と
    を備え、
    　上記モータ(Ｍ１)の上記回転子(４０,５０)と上記送風ファン(２０,３０,１２０,２２０,３２０,４２０)の上記板部材(２４,３４)とが磁力により連結されている、送風装置(１,２)。     An end plate (21, 31, 121, 221, 321, 421) and a plate member (24, 34, 124, 224, 324) made of a ferromagnetic material or a paramagnetic material provided on the end plate (21, 31). , 424) on one side in the axial direction;
    An axial gap type motor (M1 ) and
    An air blower in which the rotor (40, 50) of the motor (M1) and the plate member (24, 34) of the air blower fan (20, 30, 120, 220, 320, 420) are connected by magnetic force. Device (1,2).
  2. 　請求項１に記載の送風装置(１,２)において、
    　上記モータ(Ｍ１)の上記回転子(４０,５０)が上記送風ファン(２０,３０,１２０,２２０,３２０,４２０)の上記板部材(２４,３４,１２４,２２４,３２４,４２４)に直接連結されている、送風装置(１,２)。     In the blower device (1, 2) according to claim 1,
    The rotor (40, 50) of the motor (M1) is directly connected to the plate member (24, 34, 124, 224, 324, 424) of the blower fan (20, 30, 120, 220, 320, 420). Connected blower devices (1, 2).
  3. 　請求項１または２に記載の送風装置(１,２)において、
    　上記アキシャルギャップ型のモータ(Ｍ１)は、上記回転子(４０,５０)の軸方向においてエアギャップ(Ｇ１)を介して上記回転子(４０,５０)と対向する固定子鉄心(６１)を有する固定子(６０)を備え、
    　上記固定子鉄心(６１)を上記回転子(４０,５０)の軸方向から見たとき、上記固定子鉄心(６１)は、上記板部材(２４,３４,１２４,２２４,３２４,４２４)に重なる部分を持っている、送風装置(１,２)。     The blower device (1, 2) according to claim 1 or 2,
    The axial gap type motor (M1) has a stator core (61) that faces the rotor (40, 50) through an air gap (G1) in the axial direction of the rotor (40, 50). A stator (60) is provided,
    When the stator core (61) is viewed from the axial direction of the rotor (40, 50), the stator core (61) is attached to the plate member (24, 34, 124, 224, 324, 424). Air blowers (1, 2) with overlapping parts.
  4. 　請求項３に記載の送風装置(１,２)において、
    　上記固定子鉄心(６１)を上記回転子(４０,５０)の軸方向から見たとき、上記固定子鉄心(６１)の全部が上記板部材(２４,３４,４２４)に重なる、送風装置(１,２)。     In the blower device (1, 2) according to claim 3,
    When the stator core (61) is viewed from the axial direction of the rotor (40, 50), the entire stator core (61) overlaps the plate member (24, 34, 424). 1,2).
  5. 　請求項１から４までのいずれか一項に記載の送風装置(１,２)において、
    　上記板部材(２４,３４,１２４,２２４,３２４)の径方向の端部が屈曲して上記端板(２１,３１,１２１,２２１,３２１,４２１,５２１)に埋め込まれている、送風装置(１,２)。     In the blower device (1, 2) according to any one of claims 1 to 4,
    A blower device in which a radial end of the plate member (24, 34, 124, 224, 324) is bent and embedded in the end plate (21, 31, 121, 221, 321, 421, 521). (1,2).
  6. 　請求項１から５までのいずれか一項に記載の送風装置(１,２)において、
    　上記端板(２１,３１,１２１,２２１,３２１,４２１)は、上記回転子(４０,５０)が嵌まる凹部(２１ａ,３１ａ)を上記モータ(Ｍ１)側の端面に有し、
    　上記凹部(２１ａ,３１ａ)は、上記凹部(２１ａ,３１ａ)に上記回転子(４０,５０)を嵌めたときに、上記送風ファン(２０,３０,１２０,２２０,３２０,４２０)の中心軸と上記回転子(４０,５０)の中心軸とが同一線上に位置するように形成されている、送風装置(１,２)。     In the blower device (1, 2) according to any one of claims 1 to 5,
    The end plate (21, 31, 121, 221, 321, 421) has a recess (21a, 31a) into which the rotor (40, 50) is fitted, on the end surface on the motor (M1) side;
    When the rotor (40, 50) is fitted into the recess (21a, 31a), the recess (21a, 31a) serves as the central axis of the blower fan (20, 30, 120, 220, 320, 420). and a central axis of the rotor (40, 50) are located on the same line.
  7. 　請求項１から６までのいずれか一項に記載の送風装置(１,２)を備える、空気調和機。 An air conditioner comprising the blower device (1, 2) according to any one of claims 1 to 6.
PCT/JP2023/009681 2022-03-22 2023-03-13 Blowing device and air conditioner WO2023182057A1 (en)

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Citations (4)

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Publication number Priority date Publication date Assignee Title
JPS5017802U (en) * 1973-06-14 1975-02-26
JP2005171835A (en) * 2003-12-10 2005-06-30 Fujitsu General Ltd Blower
WO2005096470A1 (en) * 2004-03-31 2005-10-13 Daikin Industries, Ltd. Motor, blower, compressor and air conditioner
WO2017022007A1 (en) * 2015-07-31 2017-02-09 新電元工業株式会社 Dynamo electric machine unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5017802B2 (en) 2005-06-06 2012-09-05 一般財団法人ファインセラミックスセンター ORIENTED ZEOLITE CRYSTAL PRODUCTION LIQUID, METHOD FOR PRODUCING ORIENTED ZEOLITE CRYSTAL USING THE SAME, AND SEPARATION LIQUID COMPRISING LIQUID PART OBTAINED BY SEPARATING PRECISION

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017802U (en) * 1973-06-14 1975-02-26
JP2005171835A (en) * 2003-12-10 2005-06-30 Fujitsu General Ltd Blower
WO2005096470A1 (en) * 2004-03-31 2005-10-13 Daikin Industries, Ltd. Motor, blower, compressor and air conditioner
WO2017022007A1 (en) * 2015-07-31 2017-02-09 新電元工業株式会社 Dynamo electric machine unit

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