WO2019038127A1 - Ventilateur et réfrigérateur équipé de celui-ci - Google Patents

Ventilateur et réfrigérateur équipé de celui-ci Download PDF

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Publication number
WO2019038127A1
WO2019038127A1 PCT/EP2018/071977 EP2018071977W WO2019038127A1 WO 2019038127 A1 WO2019038127 A1 WO 2019038127A1 EP 2018071977 W EP2018071977 W EP 2018071977W WO 2019038127 A1 WO2019038127 A1 WO 2019038127A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
ring
pole transition
fan
transition sections
Prior art date
Application number
PCT/EP2018/071977
Other languages
English (en)
Inventor
Bing Wang
Chengyou YE
Jian Yu
Wenhuan ZHEN
Original Assignee
BSH Hausgeräte GmbH
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 BSH Hausgeräte GmbH filed Critical BSH Hausgeräte GmbH
Publication of WO2019038127A1 publication Critical patent/WO2019038127A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2786—Outer rotors
    • H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2791—Surface mounted magnets; Inset magnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/064—Details of the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/003—General constructional features for cooling refrigerating machinery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
    • 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
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0681—Details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0028—Details for cooling refrigerating machinery characterised by the fans
    • F25D2323/00284—Details thereof

Definitions

  • the present utility model relates to a fan, which is specifically applied to a refrigerator.
  • a fan usually includes a housing, a motor, and an impeller.
  • the motor drives the impeller to run at a high speed, a vibration at a certain frequency and noise will be generated.
  • the fan of the refrigerator in the market usually uses a brushless DC motor, but the brushless DC motor inevitably has a cogging torque, which causes the vibration and noise of an external rotor motor, while the refrigerator has high requirements on the vibration and noise of the fan.
  • the present utility model provides a fan to resolve at least the problem of vibration and noise of a fan of a refrigerator in the prior art.
  • the present utility model provides a fan used on a refrigerator.
  • a fan according to the present utility model has a housing, an impeller, a rotor and a rotating shaft disposed on the impeller, and a stator disposed on the housing.
  • the fan includes: a magnetic yoke ring disposed on the impeller; a first magnetic ring and a second magnetic ring disposed within the magnetic yoke ring and arranged in an axial direction, where the first magnetic ring and the second magnetic ring are each formed by more than two pairs of magnetic poles, and a magnetic pole transition section exists between every two magnetic poles; the magnetic pole transition sections on the first magnetic ring and the adjacent magnetic pole transition sections on the second magnetic ring are staggered from one another in a circumferential direction of the magnetic yoke ring.
  • the staggered magnetic pole structure optimizes a drive torque of the motor during operation, reduces the electromagnetic component of the motor vibration and noise, and thus reduces the vibration and generated noise of the fan.
  • the magnetic pole transition sections on the first magnetic ring and the magnetic pole transition sections on the second magnetic ring are staggered at a set angle.
  • the angle between the adjacent magnetic pole transition sections can be set according to test effects.
  • the set angle is from 12 degrees to 18 degrees.
  • the first magnetic ring and the second magnetic ring are magnetizable rubber magnetic strips.
  • the magnetizable rubber magnetic strips are used to facilitate magnetization, and to facilitate installation within the magnetic yoke ring after being twisted to form magnetic rings.
  • the rubber magnetic strips are detachably installed within the magnetic yoke ring.
  • the first magnetic ring and the second magnetic ring are each formed by splicing more than two rubber magnetic strips; the magnetic pole transition sections are located at splicing joints of the rubber magnetic strips.
  • the fan further includes a third magnetic ring; where magnetic pole transition sections on the third magnetic ring and the magnetic pole transition sections on the first magnetic ring and the magnetic pole transition sections on the second magnetic ring are staggered from one another in the circumferential direction of the magnetic yoke ring.
  • the present utility model provides a refrigerator having a body, where the body has the fan described above.
  • the present utility model resolves the problems of vibration and noise of the fan of the refrigerator in the prior art, and can effectively reduce the vibration and noise of the motor.
  • FIG. 1 is a schematic diagram of a cross-sectional structure of a fan
  • FIG. 2 is a schematic three-dimensional diagram of an impeller assembly
  • FIG. 3 is a schematic cross-sectional view of the impeller assembly of FIG. 2;
  • FIG. 4 is a schematic diagram illustrating the formation of an impeller assembly according to another embodiment.
  • the present utility model provides a fan, which is applied to a body of a refrigerator.
  • FIG. 1 is a schematic diagram of a cross-sectional structure of a fan
  • FIG. 2 is a schematic three-dimensional diagram of an impeller assembly
  • FIG. 3 is a schematic cross-sectional view of the impeller assembly of FIG. 2
  • FIG. 4 is a schematic diagram of the formation of an impeller assembly according to another embodiment. As shown in FIG. 1, FIG. 2 and FIG. 3:
  • a fan 1 has a housing 2, an impeller 3, a rotor 4 and a rotating shaft 8 disposed on the impeller 3, and a stator 5 disposed on the housing 2, and further includes: a magnetic yoke ring 6 disposed on the impeller 3; a first magnetic ring 11 and a second magnetic ring 12 disposed within the magnetic yoke ring 6 and arranged in an axial direction, where the first magnetic ring 11 and the second magnetic ring 12 are each formed by more than two pairs of magnetic poles (N and S magnetic poles), and a magnetic pole transition section exists (11a, 12a) between every two magnetic poles; where the magnetic pole transition sections (11a) on the first magnetic ring 11 and the adjacent magnetic pole transition sections (12a) on the second magnetic ring 12 are staggered from one another in a circumferential direction of the magnetic yoke ring 6.
  • the first magnetic ring 11 and the second magnetic ring 12 have a plurality of magnetic pole transition sections, which are not described in detail herein.
  • the staggered magnetic pole structure optimizes a drive torque of the motor during operation, reduces the electromagnetic component of the motor vibration and noise, and thus reduces the vibration and generated noise of the fan.
  • the magnetic pole transition sections (11a) on the first magnetic ring 11 and the magnetic pole transition sections (12a) on the second magnetic ring 12 are staggered at a set angle. Therefore, the angle between the adjacent magnetic pole transition sections can be set according to test effects. Generally, the set angle is from 12 degrees to 18 degrees.
  • the first magnetic ring 11 and the second magnetic ring 12 may be made of magnetizable rubber magnetic strips.
  • the magnetizable rubber magnetic strips are used to facilitate magnetization, and to facilitate installation within the magnetic yoke ring after being twisted to form magnetic rings.
  • the rubber magnetic strips are detachably installed within the magnetic yoke ring.
  • the first magnetic ring 11 and the second magnetic ring 12 are each formed by splicing more than two rubber magnetic strips; and the magnetic pole transition sections (11a, 12a) are located at splicing joints of the rubber magnetic strips 7.
  • the magnetic rings can be prepared by splicing three rubber magnetic strips.
  • the fan may also use a third magnetic ring 13; where magnetic pole transition sections (13a) on the third magnetic ring 13 and the magnetic pole transition sections (1 la) on the first magnetic ring 11 and the magnetic pole transition sections (12a) on the second magnetic ring 12 are staggered from one another in the circumferential direction of the magnetic yoke ring 6.
  • the present utility model resolves the problems of vibration and noise of the fan of the refrigerator in the prior art, and can effectively reduce the vibration and noise of the motor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

Le ventilateur de la présente invention comporte un boîtier, une roue à aubes (3), un rotor et un arbre rotatif (8) disposé sur la roue à aubes, et un stator disposé sur le boîtier. Le ventilateur comprend une bague de culasse magnétique disposée sur la roue à aubes (3); une première bague magnétique (11) et une seconde bague magnétique (12) disposées à l'intérieur de la bague de culasse magnétique et agencées dans une direction axiale, la première bague magnétique (11) et la seconde bague magnétique (12) sont chacune formées par plus de deux paires de pôles magnétiques, et une section de transition de pôle magnétique existe entre chaque paire de pôles magnétiques. Les sections de transition de pôle magnétique sur la première bague magnétique (11) et les sections de transition de pôle magnétique adjacentes sur la seconde bague magnétique (12) sont décalées l'une par rapport à l'autre dans une direction circonférentielle de la bague de culasse magnétique.
PCT/EP2018/071977 2017-08-23 2018-08-14 Ventilateur et réfrigérateur équipé de celui-ci WO2019038127A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201721056560.4 2017-08-23
CN201721056560.4U CN207454339U (zh) 2017-08-23 2017-08-23 风机及具有该风机的冰箱

Publications (1)

Publication Number Publication Date
WO2019038127A1 true WO2019038127A1 (fr) 2019-02-28

Family

ID=62249266

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/071977 WO2019038127A1 (fr) 2017-08-23 2018-08-14 Ventilateur et réfrigérateur équipé de celui-ci

Country Status (2)

Country Link
CN (1) CN207454339U (fr)
WO (1) WO2019038127A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090088233A (ko) * 2008-02-14 2009-08-19 엘지전자 주식회사 팬-모터 조립체 및 이를 구비한 냉장고
CN202309247U (zh) * 2011-10-25 2012-07-04 捷和电机（深圳）有限公司 磁性构件、马达及包括该马达的吊扇
WO2015011892A1 (fr) * 2013-07-26 2015-01-29 パナソニックＩｐマネジメント株式会社 Ventilateur électrique pour un dispositif de réfrigération et dispositif de réfrigération pourvu d'un ventilateur électrique
US20160248283A1 (en) * 2015-02-19 2016-08-25 Asmo Co., Ltd. Motor and blower
TWM547602U (zh) * 2016-03-24 2017-08-21 德昌電機（深圳）有限公司 冷卻風扇及應用該冷卻風扇的風冷冰箱

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090088233A (ko) * 2008-02-14 2009-08-19 엘지전자 주식회사 팬-모터 조립체 및 이를 구비한 냉장고
CN202309247U (zh) * 2011-10-25 2012-07-04 捷和电机（深圳）有限公司 磁性构件、马达及包括该马达的吊扇
WO2015011892A1 (fr) * 2013-07-26 2015-01-29 パナソニックＩｐマネジメント株式会社 Ventilateur électrique pour un dispositif de réfrigération et dispositif de réfrigération pourvu d'un ventilateur électrique
US20160248283A1 (en) * 2015-02-19 2016-08-25 Asmo Co., Ltd. Motor and blower
TWM547602U (zh) * 2016-03-24 2017-08-21 德昌電機（深圳）有限公司 冷卻風扇及應用該冷卻風扇的風冷冰箱

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Publication number Publication date
CN207454339U (zh) 2018-06-05

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