EP2907438B1 - A motor denoising structure applied to vacuum cleaners - Google Patents

A motor denoising structure applied to vacuum cleaners Download PDF

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Publication number
EP2907438B1
EP2907438B1 EP14197989.8A EP14197989A EP2907438B1 EP 2907438 B1 EP2907438 B1 EP 2907438B1 EP 14197989 A EP14197989 A EP 14197989A EP 2907438 B1 EP2907438 B1 EP 2907438B1
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EP
European Patent Office
Prior art keywords
motor
support
cover
flexible
structure applied
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP14197989.8A
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German (de)
French (fr)
Other versions
EP2907438A1 (en
Inventor
Zugen Ni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kingclean Electric Co Ltd
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Kingclean Electric Co 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.)
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Publication date
Application filed by Kingclean Electric Co Ltd filed Critical Kingclean Electric Co Ltd
Publication of EP2907438A1 publication Critical patent/EP2907438A1/en
Application granted granted Critical
Publication of EP2907438B1 publication Critical patent/EP2907438B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/22—Mountings for motor fan assemblies
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping

Definitions

  • the present invention relates to a motor denoising structure applied to vacuum cleaners.
  • WO 2009/101775 discloses an electric vacuum cleaner comprising a plurality of coil springs disposed between motor support and motor cover to support the motor support.
  • WO 2010/106471 discloses a vacuum cleaner, wherein the motor is suspended in the motor compartment by a suspension system comprising at least one leaf spring.
  • a purpose of the present invention is as follows: A motor denoising structure applied to vacuum cleaners is provided, whose motor cover supports the motor support through an elastomer, such a flexible connection reducing noise while reducing vibration.
  • a technical solution of the present invention is as follows: A motor denoising structure applied to vacuum cleaners, with an elastomer disposed between a motor support and a motor cover to support the motor support.
  • the elastomer comprises a flexible cushion disposed on the motor cover, with a flexible support sheet being connected between the flexible cushion and the motor support.
  • the flexible support sheet is a flexible sheet having a supporting function.
  • the lower portion of the motor fixed inside the motor support in the present invention is suspended inside the motor cover, i.e., the tail portion of the motor is suspended inside the motor cover and gets in no contact with the motor cover; certainly, other cushioning parts (e.g. a damping pad and a spring) can also be disposed between the tail portion of the motor and the motor cover, so as to achieve the corresponding damping effect.
  • the solution that the lower portion of the motor is suspended inside the motor cover is preferred in the present invention, thereby preventing the lower portion of the motor from contacting the motor cover to make the motor vibration transferred to the motor cover, which can better reduce noise and the production cost as well.
  • Fig. 1 is a structural schematic view of the present invention.
  • a motor denoising structure applied to vacuum cleaners comprising a motor 1 and a motor cover 2, the motor 1 being provided at its periphery with a motor support 3 used for fixing the motor 1; the motor cover 2 supports the motor support 3 through an elastomer 4, which comprises a flexible cushion 41 disposed on the motor cover 2, with a flexible support sheet 42 being connected between the flexible cushion 41 and the motor support 3.
  • the flexible support sheet 42 is a flexible sheet having a supporting function.
  • the lower portion of the motor 1 in the present invention is suspended inside the motor cover, i.e., the tail portion of the motor 1 is suspended inside the motor cover 2 and gets in no contact with the motor cover 2; certainly, other cushioning parts (e.g. a damping pad and a spring) can also be disposed between the tail portion of the motor 1 and the motor cover 2, so as to achieve the corresponding damping effect.
  • cushioning parts e.g. a damping pad and a spring
  • the motor cover 2 of the present invention supports the motor support 3 through the elastomer 4, such a flexible connection reducing noise while reducing vibration. Besides, ensuring that the tail portion of the motor 1 is suspended can prevent the lower portion of the motor 1 from contacting the motor cover 2 to make vibration of the motor 1 transferred to the motor cover 2, which can better reduce noise and the production cost as well.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a motor denoising structure applied to vacuum cleaners.
    • BACKGROUND OF THE INVENTION
  • With the motor power of a vacuum cleaner gradually increased, the noise of the vacuum cleaner is also increased. In the prior art, in order to resolve the problem of motor noise of the vacuum cleaner, the manufacturers usually take the following approaches:
    1. 1. Making effort on the motor itself, and achieving low noise output by reducing the power consumption while ensuring its work efficiency; however, this approach suffers high cost, with the actual denoising effect not very ideal.
    2. 2. Making improvement in the wind channel in the motor housing, such as making improvement in the shape of the dynamic and static wind wheels, or reducing noise by the addition of an anechoic room, a wind pipe and other structures; however, this approach has the disadvantages that the motor housing has complicated structure design, the model is more difficult to be manufactured, and the cost is increased.
    3. 3. Since the low-frequency noise of the vacuum cleaner mainly comes from vibration of the motor, in order to reduce vibration of the motor, in the industry the motor is fixed inside the motor cover front and rear with a motor seal ring and a motor pressure seat; however, the prior art motor and motor cover are fixed mostly by rigid connection, which still has a limited silencing effect and may also produce resonance, not able to achieve low noise of the motor.
  • WO 2009/101775 discloses an electric vacuum cleaner comprising a plurality of coil springs disposed between motor support and motor cover to support the motor support.
  • WO 2010/106471 discloses a vacuum cleaner, wherein the motor is suspended in the motor compartment by a suspension system comprising at least one leaf spring.
    • CONTENTS OF THE INVENTION
  • A purpose of the present invention is as follows: A motor denoising structure applied to vacuum cleaners is provided, whose motor cover supports the motor support through an elastomer, such a flexible connection reducing noise while reducing vibration.
  • A technical solution of the present invention is as follows: A motor denoising structure applied to vacuum cleaners, with an elastomer disposed between a motor support and a motor cover to support the motor support.
  • Furthermore, the elastomer comprises a flexible cushion disposed on the motor cover, with a flexible support sheet being connected between the flexible cushion and the motor support. The flexible support sheet is a flexible sheet having a supporting function.
  • In order to better damp vibration and reduce noise, the lower portion of the motor fixed inside the motor support in the present invention is suspended inside the motor cover, i.e., the tail portion of the motor is suspended inside the motor cover and gets in no contact with the motor cover; certainly, other cushioning parts (e.g. a damping pad and a spring) can also be disposed between the tail portion of the motor and the motor cover, so as to achieve the corresponding damping effect. The solution that the lower portion of the motor is suspended inside the motor cover is preferred in the present invention, thereby preventing the lower portion of the motor from contacting the motor cover to make the motor vibration transferred to the motor cover, which can better reduce noise and the production cost as well.
  • The present invention has the following advantages:
    1. 1. The motor cover of the present invention supports the motor support through an elastomer, such a flexible connection reducing noise while reducing vibration.
    2. 2. The lower portion of the motor in the present invention is preferred to be suspended inside the motor cover, thereby preventing the lower portion of the motor from contacting the motor cover to make the motor vibration transferred to the motor cover, which can better reduce noise and the production cost as well.
    BRIEF DESCRIPTION OF THE DRAWINGS
  • The present invention will be further described below with reference to drawings and examples.
  • Fig. 1 is a structural schematic view of the present invention.
  • Wherein:
    1. 1. motor;
    2. 2. motor cover;
    3. 3. motor support;
    4. 4. elastomer; 41. spring; and 42. flexible support sheet.
    DETAILED DESCRIPTION OF THE EMBODIMENTS
  • Example: As shown in Fig. 1, a motor denoising structure applied to vacuum cleaners, comprising a motor 1 and a motor cover 2, the motor 1 being provided at its periphery with a motor support 3 used for fixing the motor 1; the motor cover 2 supports the motor support 3 through an elastomer 4, which comprises a flexible cushion 41 disposed on the motor cover 2, with a flexible support sheet 42 being connected between the flexible cushion 41 and the motor support 3. The flexible support sheet 42 is a flexible sheet having a supporting function.
  • In order to better damp vibration and reduce noise, the lower portion of the motor 1 in the present invention is suspended inside the motor cover, i.e., the tail portion of the motor 1 is suspended inside the motor cover 2 and gets in no contact with the motor cover 2; certainly, other cushioning parts (e.g. a damping pad and a spring) can also be disposed between the tail portion of the motor 1 and the motor cover 2, so as to achieve the corresponding damping effect. The solution that the lower portion of the motor 1 is suspended inside the motor cover 2 is preferred in this example.
  • The motor cover 2 of the present invention supports the motor support 3 through the elastomer 4, such a flexible connection reducing noise while reducing vibration. Besides, ensuring that the tail portion of the motor 1 is suspended can prevent the lower portion of the motor 1 from contacting the motor cover 2 to make vibration of the motor 1 transferred to the motor cover 2, which can better reduce noise and the production cost as well.
  • What is described above is only a specific application example of the present invention, and cannot limit the scope of protection of the present invention. In addition to the above example, the present invention can also have other embodiments. Any technical solution based on equal substitution or equivalent alteration all falls within the scope seeking protection in the present invention.

Claims (3)

  1. A motor denoising structure applied to vacuum cleaners, characterized in that an elastomer (4) is disposed between a motor support (3) and a motor cover (2) to support the motor support (3), wherein the elastomer (4) comprises a flexible cushion (41) disposed on the motor cover (2), with a flexible support sheet (42) being connected between the flexible cushion (41) and the motor support (3).
  2. The motor denoising structure applied to vacuum cleaners according to claim 1, wherein the flexible support sheet (42) is a flexible sheet having a supporting function.
  3. The motor denoising structure applied to vacuum cleaners according to claim 1 or 2, wherein a lower portion of the motor (1) fixed inside the motor support (3) is suspended inside the motor cover (2).
EP14197989.8A 2014-02-18 2014-12-15 A motor denoising structure applied to vacuum cleaners Active EP2907438B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420068273.5U CN203815390U (en) 2014-02-18 2014-02-18 Motor noise reduction structure applied to dust collector

Publications (2)

Publication Number Publication Date
EP2907438A1 EP2907438A1 (en) 2015-08-19
EP2907438B1 true EP2907438B1 (en) 2020-03-11

Family

ID=51470944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14197989.8A Active EP2907438B1 (en) 2014-02-18 2014-12-15 A motor denoising structure applied to vacuum cleaners

Country Status (2)

Country Link
EP (1) EP2907438B1 (en)
CN (1) CN203815390U (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104638817B (en) * 2015-02-15 2018-05-29 莱克电气股份有限公司 The noise reduction structure of motor and dust catcher of dust catcher
DK3238592T3 (en) 2016-04-27 2021-07-19 Diversey Inc VACUUM CLEANER
CN108719116B (en) * 2018-08-29 2023-12-19 莱克电气股份有限公司 A motor assembly of making an uproar falls in two wind channels for pet cleaning machine
JP2021065463A (en) * 2019-10-24 2021-04-30 株式会社マキタ Dust collector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009066648A1 (en) * 2007-11-22 2009-05-28 Kabushiki Kaisha Toshiba Electric cleaner
RU2430673C1 (en) * 2008-02-12 2011-10-10 Кабусики Кайся Тосиба Electric vacuum cleaner
EP2255711A1 (en) * 2009-03-17 2010-12-01 Koninklijke Philips Electronics N.V. Vacuum cleaner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN203815390U (en) 2014-09-10
EP2907438A1 (en) 2015-08-19

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