WO2002044568A1 - Dispositif ventilateur - Google Patents

Dispositif ventilateur Download PDF

Info

Publication number
WO2002044568A1
WO2002044568A1 PCT/JP2001/010289 JP0110289W WO0244568A1 WO 2002044568 A1 WO2002044568 A1 WO 2002044568A1 JP 0110289 W JP0110289 W JP 0110289W WO 0244568 A1 WO0244568 A1 WO 0244568A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
rotor
vibration isolator
bearing
fixed shaft
Prior art date
Application number
PCT/JP2001/010289
Other languages
English (en)
Japanese (ja)
Inventor
Tomohiro Takano
Yasushi Wakai
Tetsuya Yamashita
Original Assignee
Daikin Industries, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2000362907A external-priority patent/JP2002161887A/ja
Priority claimed from JP2000362906A external-priority patent/JP2002161898A/ja
Application filed by Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Priority to AU2002224098A priority Critical patent/AU2002224098A1/en
Publication of WO2002044568A1 publication Critical patent/WO2002044568A1/fr

Links

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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • 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

Definitions

  • the present invention relates to a fan device, and particularly to a fan device such as a cross opening fan used for an indoor unit of an air conditioner.
  • a fan device such as an air conditioner
  • the motor unit 51 is arranged rotatably around a fixed shaft 53, a stay 54 (stator) fixed to the fixed shaft 53, and the fixed shaft 53.
  • a motor rotor 55 is fixed to the fixed shaft 53.
  • the fan section 52 has a fan rotor 56.
  • the stator 54 of the motor section 51 includes a core 57 and a coil 58 wound around the teeth of the core 57.
  • the motor rotor 55 includes a short cylindrical rotor body 59 and a mouth magnet 60 fixed to the inner peripheral surface of the rotor body 59.
  • the rotor body 59 includes a large-diameter first part 61 and a small-diameter second part 62.
  • a rotor magnet 60 is attached to the inner peripheral surface of the first part 61 in an annular shape.
  • a bearing 63 is provided in the second part 62. The bearing 63 is inserted and fixed to the fixed shaft 53, and the motor rotor 55 is rotatably supported by the fixed shaft 53 via the bearing 63.
  • the motor rotor 55 and the fan port 56 are connected via a connecting member 64.
  • the connecting member 6 4 is formed of a ring body having a U-shaped cross section
  • the wall of the fan portion 52 is attached to the side wall 65 of the fan rotor 56
  • the wall of the motor portion 51 is connected to the motor rotor 5. 5 attached to the side wall 6 6.
  • An object of the present invention is to provide a fan device which can be easily assembled, and which can surely perform alignment of a fan rotor and obtain stable rotation of a fan port.
  • the fan device according to claim 1 includes a fixed shaft 1, a bearing 41, a motor rotor 4, and a fan rotor 5.
  • the bearing 41 is mounted on the fixed shaft 1.
  • the motor port 4 is rotatably arranged around the axis of the fixed shaft 1.
  • the fan rotor 5 has one side wall 18 and rotates integrally with the motor rotor 4.
  • a vibration isolator 6 is fitted on the bearing 41. In this fan device, the vibration isolator 6 is attached to the center of one side wall 18 of the fan rotor 5, and the motor rotor 4 is connected to the vibration isolator 6.
  • the bearing 41 is mounted on the fixed shaft 1, and the vibration isolator 6 is fitted on the bearing 41. That is, the vibration isolator 6 is what is called a bearing support. Further, since the vibration isolator 6 is attached to the center of one side wall 18 of the fan rotor 5, the fan rotor 5 is fixed to the fixed shaft 1 via the bearing 41 and the vibration isolator 6 (bearing support). Supported rotatably.
  • the fixed shaft 1 serves as a support shaft for supporting the fan rotor 5, and it is easy to accurately align the axis of the fan rotor 5.
  • a fan device is the fan device according to the first aspect, wherein a through hole 19 is provided in a central portion of one side wall 18 of the fan rotor 5.
  • the bearing 41 is arranged in the through hole 19.
  • the bearing 63 that supports the fan rotor 56 is disposed outside the fan rotor 56.
  • the support of the fan rotor 56 is unstable, and a space in the axial direction is formed between the motor rotor 55 and the fan rotor 56, which is not preferable for achieving compactness.
  • the bearing 41 mounted on the fixed shaft 1 is disposed in the through hole 19, and the fan rotor 5 and the motor rotor 4 are rotatable via the bearing 41 and the vibration isolator 6. Therefore, the bearing 41 is located in a plane including the side wall of the fan rotor 5.
  • the fan device according to claim 3 is the fan device according to claim 1 or 2, wherein the vibration isolator 6 has one end protruding into the fan rotor 5. In addition, one end of the vibration isolator 6 has a cone shape that gradually shrinks toward the inside of the fan port 5.
  • one end of the vibration isolator 6 that is to be inserted into the fan rotor 5 has a conical shape whose diameter is gradually reduced toward the inside of the fan rotor 5, so that the fan rotor 5 It is less likely that one end of the vibration isolator 6 has an adverse effect on the wind flow generated by the rotation.
  • FIG. 1 is a sectional view of a main part showing an embodiment of a fan device of the present invention.
  • FIG. 2 (a) is an enlarged sectional view of a main part showing a fitted state of a motor rotor of a fan device.
  • FIG. 2 (b) is an enlarged cross section of the main part showing the fitted state of the motor rotor of the fan device.
  • FIG. 3 (a) is an enlarged sectional view of a main part of the fan device before the motor port is fitted.
  • Figure 3 (b) is an enlarged sectional view c
  • Figure 4 of a main part of a motor port one data fitting state of the fan device is a side view showing the motor rotor of the fan device.
  • FIG. 5 is a sectional view showing a motor rotor of the fan device.
  • Fig. 6 is a partial side view of the vibration isolator of the fan unit.
  • FIG. 7 is an enlarged sectional view of a main part of a bearing of the fan device.
  • Fig. 8 is a side view of the main part of the bearing of the fan device.
  • FIG. 9 is a sectional view of a main part of a conventional fan device.
  • FIG. 1 shows a cross-sectional view of a main part of the fan device.
  • This fan device is used, for example, in an indoor unit such as an air conditioner, and includes a fixed shaft (shaft) 1, a stator (station) 2 which is coaxially fixed to the fixed shaft 1, and And a rotating body 3.
  • the stator 2 is shown in a simplified manner in the drawing, but has a core and a coil wound around teeth of the core.
  • the fixed shaft 1 is inserted and fixed into the axial hole of the core of the stator 2.
  • the rotating body 3 is a motor rotor 4, a fan rotor 5, and a vibration isolator 6 that connects them.
  • the motor rotor 4 includes a disk-shaped main body 7 having an axial hole, a ring-shaped flange 8, and a cylindrical axially protruding portion 9.
  • the flange 8 protrudes from the outer peripheral edge of the main body 7 in the axial direction.
  • the axial projection 9 protrudes from the periphery of the axial hole of the main body 7 in the axial direction opposite to the flange 8.
  • the axially protruding portion 9 includes a long projecting piece 10 ⁇ and a short projecting piece 11 1.
  • the long projecting pieces 10 0 ⁇ and the short projecting pieces 1 1 ⁇ ⁇ are alternately and continuously arranged in the circumferential direction.
  • the long projecting piece 10 is composed of a first part 12 and a second part 13 connected to the first part 12.
  • the short piece 11 is composed of a first part 14 and a second part 15 connected to the first part 14. Consists of The thickness of the second part 13 of the long projecting piece 10 is larger than the thickness of the second part 15 of the short projecting piece 11. More specifically, the outer dimensions of the first part 12 of the long protruding piece 10 and the outer diameter of the first part 14 of the short protruding piece 11 are the same.
  • the outer diameter of the second part 13 is larger than the outer diameter of the second part 15 of the short piece 11.
  • the outer diameter means a dimension from the axis to the outer surface of each part.
  • a magnetized portion is formed on the inner peripheral surface of the flange 8. The magnetized portion of the flange portion 8 is closely opposed to the winding portion of the coil of the stator 2.
  • the fan rotor 5 includes a fan main body 11 and a pair of side walls 18, 18 attached to side ends of the fan main body.
  • One side wall (one side wall) 18 of the pair of side walls 18, 18 is provided with a through hole 19.
  • the anti-vibration material 6 is mounted in the through hole 19.
  • a pivot shaft protrudes from the axis of the other side wall 18 (not shown) of the pair of side walls 18, 18.
  • the vibration isolator 6 is made of rubber, plastic, or the like generally used as a vibration isolator (buffer). As shown in FIG. 1, FIG. 2, FIG. 3, and FIG. 6, the vibration isolator 6 includes a disc portion 20 and a truncated cone portion 21 connected to the disc portion 20. The disk portion 20 is formed with a long fitting portion 22 ′ ′ and a short fitting portion 23 in the axial direction. The long projecting piece 10 of the motor rotor 4 is fitted into the long fitting part 22. The short projection 11 of the rotor 4 is fitted into the short fitting portion 23. That is, as shown in FIGS.
  • the long fitting portion 22 has a first portion 24 to which the first portion 12 of the long projecting piece 10 is fitted, and a long portion. And a second part 25 into which the second part 13 of the protruding piece 10 is fitted.
  • the short fitting portion 23 has a first portion 26 to which the first portion 14 of the short projecting piece 11 is fitted, and a short projecting portion. And the second part 27 to which the second part 15 of the piece 11 fits.
  • the long fitting portions 2 2 ⁇ and the short fitting portions 2 3 ⁇ are alternately and continuously formed in the circumferential direction to form a ring-shaped hole A (see FIG. 6). .
  • the axially projecting portion 9 composed of the long projecting portion 10 1 ⁇ and the short projecting portion 1 1.
  • ⁇ has the long fitting portion 2 2 ⁇ ⁇ and the short fitting portion 2 3 ⁇ ⁇ It will fit into the hole A composed of Then, when the axial projection 9 is fitted into the hole A, the inner peripheral surface 9 a of the axial projection 9 is pressed against the inner peripheral surface 16 of the hole A.
  • the disk ⁇ P 20 has a flange 28 on the motor rotor 4 side of the hole A. The inner surface of this collar 2 8 The end face 30 of the axially protruding portion 9 abuts on 29. Note that a chamfered portion 33 is formed on the outer surface of the flange portion 28.
  • a lip portion 34 that is in pressure contact with the outer surface 32 of the main body 7 of the motor rotor 4 is formed on the outer peripheral portion of the disk portion 20 of the vibration isolator 6.
  • the lip portion 34 has a ring shape that gradually expands from the substantially central portion in the axial center direction of the disk portion 20 toward the motor rotor 4 side toward the outer peripheral side. It can be elastically deformed. That is, in the free state, the spread angle of the grip portion 34 is set to about 45 degrees, but when the motor rotor 4 is mounted on the disk portion 20, as shown in FIGS. Then, the inner surface of the lip portion 34 presses against the outer surface 32 of the main body 7 of the motor rotor 4.
  • the vibration isolator 6 is connected to one side wall 18 of the fan rotor 5 via a flat annular connector 36. More specifically, the inner peripheral portion 37 of the connecting member 36 is embedded in the outer peripheral surface of the disk portion 20 of the vibration isolator 6, and the outer peripheral portion 38 of the connecting member 36 is formed on one side wall 18 of the fan rotor 5. The through hole 19 is buried in the inner peripheral surface. As a result, the vibration isolator 6 is connected to the fan rotor 5 while passing through the through hole 19. As shown in FIG. 6, the inner peripheral portion 37 and the outer peripheral portion 38 of the connector 36 have a predetermined pitch along the circumferential direction for the purpose of firmly connecting the vibration isolator 6 and the side wall 18. Holes 39 to be provided are provided.
  • the vibration isolator 6 and the connecting body 36 are integrated by simultaneous integral molding.
  • the connected body 36 and the side wall 18 connect the connected body 36 and the side wall 18 connected to the vibration isolator 6. It is integrated by simultaneous molding.
  • the vibration isolator 6 has an axial hole 40 formed therein.
  • the shaft shiso 40 includes a first part 40a, a second part 40b, a third part 40c, and a fourth part 40d.
  • the inner diameter of the first part 40a to the fourth part 40d is larger than the outer diameter of the fixed shaft 1.
  • the second part 40b has an arcuate inner peripheral surface, and is provided with a bearing 41.
  • the bearing 41 is a bearing for rotatably supporting the rotating body 3 with respect to the fixed shaft 1.
  • Bearing 4 1 as shown in FIGS. 7 and 8, c ring outer peripheral surface is provided with a-ring member 4 2 that are arc-shaped, and a grease (not shown) to be filled in the ring member 4 2
  • the arc shape of the outer surface of the body .42 is almost the same as the arc shape of the inner surface of the second part 40b are doing.
  • the outer diameter of the ring body 42 is substantially the same as the inner diameter of the second part 40b.
  • the ring body 42 has a shaft hole 43 and a grease glove part 44 ′.
  • the shaft hole 43 includes a first part 43a, a second part 43b, and a third part 43c.
  • the grease glove part 4 4 ⁇ ′ is arranged at a pitch of about 120 degrees along the circumferential direction in the second part 43 b at the center in the axial center direction.
  • the inner diameter of the first portion 43 a of the shaft hole 43 is set slightly larger than the outer diameter of the fixed shaft 1.
  • the inner diameter of the second part 43 b of the shaft hole 43 is set to be substantially the same as the outer diameter of the fixed shaft 1.
  • the inner diameter of the third part 43 c of the shaft hole 43 is set to be larger than the inner diameter of the first part 43 a. Therefore, as shown in FIG. 2 and the like, when the fixed shaft 1 is inserted into the bearing 41, the fixed shaft 1 is fitted into the second part 43b, and the bearing 41 is attached to the fixed shaft 1. Becomes rotatable. In other words, when the bearing 41 is externally fitted to the fixed shaft 1, the fixed shaft 1 is fitted to the second part 43b, and the bearing 41 is rotatable with respect to the fixed shaft 1. Becomes
  • the third part 43 c of the axial hole 43 formed in the ring body 42 is provided with a flat annular cover (not shown) to prevent the grease in the grease glove part 44 from scattering. Mated.
  • the wall forming the first part 43a prevents the grease from flowing out.
  • vibration-proof material 6 is provided with an air vent hole 45.
  • the motor rotor 4, the fan rotor 5, and assembles the anti-vibration member 6 rotating body 3 having a side wall 1 of c fan rotor 5 to form a fixed-side member connects the fixed shaft 1 and the stator 2 and the like
  • the connector 8 and the connector 36 are integrated by embedding the outer peripheral portion 38 of the connector 36 in the side wall 18.
  • the vibration isolator 6 and the connector 36 are integrated by embedding the inner peripheral portion 37 of the connector 36 in the vibration isolator 6.
  • the vibration-proof material 6 and the motor port 4 are connected by fitting the protrusion 9 in the axial direction of the motor shaft 4 into the hole A of the vibration-proof material 6.
  • the motor rotor 4 is sequentially approached to the vibration isolating material 6 along the axial direction, and the flange 28 is elastically deformed while the long protruding piece 10 of the motor rotor 4 is fitted to the vibration isolating material 6.
  • Part 2 2 and short piece of motor rotor 4 1 1 is fitted to the short fitting portion 2 3 of the vibration isolator 6. Thereby, the motor rotor 4 can be connected to the vibration isolator 6.
  • the bearing 41 is fitted and mounted on the vibration isolator 6, and the vibration isolator 6 and the bearing 41 are integrated.
  • the bearing 41 may be attached to the vibration isolator 6 after the motor rotor 4 is connected to the vibration isolator 6, or the bearing 41 may be attached to the vibration isolator.
  • the motor rotor 4 may be connected to the vibration isolator 6 after being attached to the motor rotor 6.
  • the rotating body 3 assembled in this manner is mounted on the fixed shaft 1 on the fixed side.
  • the shaft hole 4 of the bearing 4 1 mounted on the shaft hole 40 of the vibration isolator 6 is mounted.
  • the fixed-side member composed of the fixed shaft 1 and the like and the rotating body 3 are connected, and the rotating body 3 is connected to the shaft center of the fixed shaft 1 through the bearing 41 mounted in the vibration isolator 6. It is arranged to be rotatable around.
  • the other side wall 18 of the fan rotor 5 is provided with a pivot shaft as described above. Therefore, if a bearing is attached to this pivot shaft and the bearing is attached to an indoor unit of an air conditioner to which the fan device is attached via a bearing support or the like, both ends of the fan port 5 are supported. Can complete the assembly work.
  • the inner peripheral surface 9 a of the axially projecting portion 9 is pressed against the inner peripheral surface 16 of the hole A when the motor rotor 4 is fitted to the vibration isolator 6. c Therefore, the axis of the motor rotor 4 can be surely aligned.
  • the lip portion 34 is pressed against the main body 7 of the motor rotor 4, the inside of each of the fitting portions 22 and 23 can be in a negative pressure state. Thereby, the adhesion between the vibration isolator 6 and the motor rotor 4 can be improved. Further, in the fan device of this embodiment, since the fixed shaft 1 serves as a direct support shaft of the fan rotor 5 and the bearing 41 is disposed on the axis of the fan rotor 5, the cogging torque is reduced. A stable rotation with little influence of the rotation can be obtained.
  • the circular shape of the ring body 42 is used as the vibration isolator 6.
  • the outer diameter of the ring body 42 of the bearing 41 is substantially the same as the inner diameter of the second part 40b. .
  • the vibration isolator 6 serves as a so-called bearing support, and the motor rotor 4 and the fan rotor 5 are connected (joined) via the bearing support. Therefore, the number of parts can be reduced, which contributes to an improvement in productivity and a reduction in cost.
  • the bearing 41 attached to the vibration isolator 6 is It will be located in the plane containing 18. This makes it difficult for high stress (self-weight of the fan rotor 5, stress due to eccentricity, etc.) to be applied to the vibration isolator 6 for fixing the bearing 4 1, thereby contributing to the improvement of the durability of the vibration isolator 6. More stable rotation of the fan rotor 5 becomes possible.
  • the truncated cone portion 21 of the vibration isolator 6 is shaped so as to protrude into the fan rotor 5.
  • one end of the vibration isolator 6 enters the fan rotor 5.
  • One end of the vibration isolator 6 that enters the fan rotor 5 has a cone shape that gradually shrinks toward the inside of the fan rotor 5.
  • the motor rotor 4 is fitted to the vibration insulator 6, that is, the axially protruding portion 9 of the motor rotor 4 is fitted to the hole A of the vibration insulator 6, and the vibration insulator 6 and the motor rotor 4 are connected. ing.
  • the axially protruding portion 9 has the long protruding piece 10 and the short protruding piece 11, the long protruding piece 10 is closer to the fan rotor 5 than the short protruding piece 11.
  • the protruding portion serves as a rotational torque transmitting portion for integrally rotating the vibration isolator 6 and the motor rotor 4.
  • the rotational torque transmitting section ensures that the vibration isolator 6 and the motor rotor 4 rotate integrally.
  • the present invention is not limited to the above embodiments. That is, the fan device can be variously changed within the scope of the present invention.
  • the number of the grease globe portions 44 of the bearing 41 can be freely increased and decreased, and a bearing 41 other than that shown in the embodiment (for example, a ball bearing) can be used.
  • a ring-shaped permanent magnet may be used as the motor port 4.
  • the axially protruding portion 9 may be formed as a protruding pin or the like instead of having a cylindrical shape.
  • the fan rotor 5 is rotatably supported on the fixed shaft 1 via the bearing 41 and the vibration isolator 6, so that the axis of the fan rotor 5 is accurately aligned. It becomes easier.
  • vibration isolator 6 also serves as a connecting member for connecting the fan rotor 5 and the motor port 4, the number of parts is reduced, and the rotation of the motor rotor 4 is also stabilized.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un dispositif ventilateur pouvant être assemblé facilement, garantissant l'alignement du rotor d'un ventilateur, et pouvant générer une rotation stable du rotor du ventilateur, comprenant un arbre fixe (1), un roulement (41), un rotor (4) de moteur, et un rotor (5) de ventilateur. Le roulement est rattaché à l'arbre fixe (1), le rotor (4) du moteur est disposé de manière rotative autour de l'axe de l'arbre fixe (1), le rotor (5) du ventilateur possède une paroi latérale (18) et effectue un mouvement de rotation de manière intégrée avec le rotor (4) du moteur, un matériau (6) d'isolation des vibrations est fixé sur le roulement (41) au niveau de la partie centrale de la paroi latérale (18) du rotor (5) du ventilateur, et le rotor (4) du moteur est connecté au matériau (6) d'isolation des vibrations.
PCT/JP2001/010289 2000-11-29 2001-11-26 Dispositif ventilateur WO2002044568A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002224098A AU2002224098A1 (en) 2000-11-29 2001-11-26 Fan device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2000362907A JP2002161887A (ja) 2000-11-29 2000-11-29 ファン装置
JP2000-362906 2000-11-29
JP2000-362907 2000-11-29
JP2000362906A JP2002161898A (ja) 2000-11-29 2000-11-29 ファン装置

Publications (1)

Publication Number Publication Date
WO2002044568A1 true WO2002044568A1 (fr) 2002-06-06

Family

ID=26604816

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/010289 WO2002044568A1 (fr) 2000-11-29 2001-11-26 Dispositif ventilateur

Country Status (2)

Country Link
AU (1) AU2002224098A1 (fr)
WO (1) WO2002044568A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9685840B2 (en) 2012-12-21 2017-06-20 Fisher & Paykel Appliances Limited Motor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0245697A (ja) * 1988-08-05 1990-02-15 Daikin Ind Ltd ファン装置
JPH0468478U (fr) * 1990-10-25 1992-06-17
JPH0558893U (ja) * 1992-01-14 1993-08-03 ダイキン工業株式会社 ファン装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0245697A (ja) * 1988-08-05 1990-02-15 Daikin Ind Ltd ファン装置
JPH0468478U (fr) * 1990-10-25 1992-06-17
JPH0558893U (ja) * 1992-01-14 1993-08-03 ダイキン工業株式会社 ファン装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9685840B2 (en) 2012-12-21 2017-06-20 Fisher & Paykel Appliances Limited Motor
US10193416B2 (en) 2012-12-21 2019-01-29 Fisher & Paykel Appliances Limited Motor

Also Published As

Publication number Publication date
AU2002224098A1 (en) 2002-06-11

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