EP2959816B1 - A vacuum cleaner having motor damping structure - Google Patents

A vacuum cleaner having motor damping structure Download PDF

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Publication number
EP2959816B1
EP2959816B1 EP14192199.9A EP14192199A EP2959816B1 EP 2959816 B1 EP2959816 B1 EP 2959816B1 EP 14192199 A EP14192199 A EP 14192199A EP 2959816 B1 EP2959816 B1 EP 2959816B1
Authority
EP
European Patent Office
Prior art keywords
motor cover
vacuum cleaner
damping medium
hole
damping structure
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
EP14192199.9A
Other languages
German (de)
French (fr)
Other versions
EP2959816A1 (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
Original Assignee
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.)
Filing date
Publication date
Application filed by Kingclean Electric Co Ltd filed Critical Kingclean Electric Co Ltd
Publication of EP2959816A1 publication Critical patent/EP2959816A1/en
Application granted granted Critical
Publication of EP2959816B1 publication Critical patent/EP2959816B1/en
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Anticipated expiration legal-status Critical

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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
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
    • 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

Definitions

  • the present invention relates to the field of vacuum cleaners, specifically to a vacuum cleaner having motor damping structure.
  • a vacuum cleaner currently used on the market generally has an internal motor cover and an external motor cover, wherein the external motor cover is fixed together with the vacuum cleaner housing, the internal motor cover is fixedly provided inside with a suction motor for generating a negative pressure, and the internal motor cover is connected in direct contact with the external motor cover.
  • the vacuum cleaner having such a traditional structure has the following problems:
  • GB 2142526 A discloses a vacuum cleaner having a motor damping structure, according to the preamble of claim 1.
  • a purpose of the present invention is as follows: In order to solve the above problems, a vacuum cleaner having motor damping structure is provided, capable of weakening resonance of the entire machine caused by high speed rotation of the motor and reducing the vibration noise caused by resonance of the entire machine.
  • a technical solution of the present invention is as follows: A vacuum cleaner having motor damping structure, whose internal motor cover is hung and fixed inside an external motor cover through a cantilever, wherein a hanging hole is formed on the external motor cover and the cantilever is hung at the hanging hole, and wherein a damping medium is disposed at a suspension point of the internal motor cover and external motor cover.
  • the hanging hole is provided inside with the damping medium with a vertical through hole, the cantilever being hung at the vertical through hole of the damping medium.
  • the cantilever comprises a connecting pin inserted into the vertical through hole of the damping medium, a support plate supported above the damping medium, and a screw for fixedly connecting the connecting pin to the support plate, wherein the connecting pin is integrally connected at its bottom with the internal motor cover.
  • the damping medium is made of a sponge, rubber or a spring.
  • the present invention has the following advantages:
  • the internal motor cover used for mounting the motor is hung and fixed inside the external motor cover, and completely isolated from the external motor cover; besides, a damping medium is disposed at a suspension point of the internal motor cover and external motor cover, thus blocking the path of transmission of the motor vibration from the internal motor cover to the vacuum cleaner housing and reducing the amount of vibration transferred from the internal motor cover to the external motor cover, making the resonance phenomenon between the external motor cover and the internal motor cover disappear; in operation, the internal motor cover vibrates independently in the external motor cover with little effect on the external motor cover, which makes the vibration amplitude of the vacuum cleaner housing reduced greatly, thereby reducing the vibration noise of the vacuum cleaner in operation; besides, when a user's hand contacts the outer surface of the vacuum cleaner, the numb feeling of hand is weakened greatly or even disappears, enhancing the user experience.
  • Fig. 1 and Fig. 2 show one specific example of the vacuum cleaner having motor damping structure of the present invention, which comprises an internal motor cover 1 and an external motor cover 2 disposed outside the internal motor cover 1, wherein a motor 6 is mounted inside the internal motor cover 1, and the external motor cover 2 is fixed inside the vacuum cleaner housing 7.
  • the key improvement of this example is that the internal motor cover 1 is hung and fixed inside the external motor cover 3 through a cantilever 2.
  • the specific structure is as follows:
  • the cantilever 2 is composed of a connecting pin 21 inserted into the vertical through hole of the damping medium 5, a support plate 22 supported above the damping medium 5, and a screw 23 for fixedly connecting the connecting pin 21 to the support plate 22, wherein the connecting pin 21 is integrally connected at its bottom with the internal motor cover 1, i.e., the connecting pin 21 is formed integrally with the internal motor cover 1.
  • the support plate 22 is provided with a vertical mounting through hole, and the connecting pin 21 is provided with a vertical threaded hole.
  • two or more cantilevers 2 are generally provided, there being totally four cantilevers 2 in this example. Certainly, we can also set one cantilever 2.
  • the motor 6 runs to drive the internal motor cover 1 to vibrate; the vibration of the internal motor cover 1 can be released in the presence of the damping medium 5 of a soft material, and the internal motor cover 1 is completely isolated from the external motor cover 3, which effectively reduce the effect of transmission of the vibration produced by the internal motor cover 1 to the external motor cover 3, and make the vibration amplitude of the external motor cover 3 extremely small or even be zero, further reducing the amount of vibration of the vacuum cleaner housing 7, weakening the vibration noise caused by resonance of the entire machine resulted from high speed rotation of the motor, thus there being no "numb" feeling of hand any more when a hand is in contact with the outer surface of the vacuum cleaner housing 7.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Motor Or Generator Frames (AREA)
  • Electric Vacuum Cleaner (AREA)

Description

    FIELD OF THE INVENTION
  • The present invention relates to the field of vacuum cleaners, specifically to a vacuum cleaner having motor damping structure.
    • BACKGROUND OF THE INVENTION
  • A vacuum cleaner currently used on the market generally has an internal motor cover and an external motor cover, wherein the external motor cover is fixed together with the vacuum cleaner housing, the internal motor cover is fixedly provided inside with a suction motor for generating a negative pressure, and the internal motor cover is connected in direct contact with the external motor cover. The vacuum cleaner having such a traditional structure has the following problems:
    • When the vacuum cleaner is in operation, the motor in the internal motor cover rotates at a high speed, thus making the internal motor cover vibrate, and then the internal motor cover drives the external motor cover connected in contact therewith to vibrate; besides, in the process of vibration transmission, due to the resonance effect, the amount of vibration transferred to the external motor cover and the vacuum cleaner housing is great, which makes the entire vacuum cleaner noisy; when a user contacts the outer surface of the vacuum cleaner by hand, there is also a "numb" feeling of hand, weakening the user experience. However, there is no innovative solution for reducing vibration of the conventional vacuum cleaner, with the effect not greatly improved.
  • GB 2142526 A discloses a vacuum cleaner having a motor damping structure, according to the preamble of claim 1.
    • CONTENTS OF THE INVENTION
  • A purpose of the present invention is as follows: In order to solve the above problems, a vacuum cleaner having motor damping structure is provided, capable of weakening resonance of the entire machine caused by high speed rotation of the motor and reducing the vibration noise caused by resonance of the entire machine.
  • A technical solution of the present invention is as follows: A vacuum cleaner having motor damping structure, whose internal motor cover is hung and fixed inside an external motor cover through a cantilever, wherein a hanging hole is formed on the external motor cover and the cantilever is hung at the hanging hole, and wherein a damping medium is disposed at a suspension point of the internal motor cover and external motor cover.
  • Preferably, the hanging hole is provided inside with the damping medium with a vertical through hole, the cantilever being hung at the vertical through hole of the damping medium.
  • Preferably, the cantilever comprises a connecting pin inserted into the vertical through hole of the damping medium, a support plate supported above the damping medium, and a screw for fixedly connecting the connecting pin to the support plate, wherein the connecting pin is integrally connected at its bottom with the internal motor cover.
  • Preferably, the damping medium is made of a sponge, rubber or a spring.
  • Preferably, there is one or more cantilevers.
  • Preferably, there are four cantilevers.
  • The present invention has the following advantages: In this vacuum cleaner of the present invention, the internal motor cover used for mounting the motor is hung and fixed inside the external motor cover, and completely isolated from the external motor cover; besides, a damping medium is disposed at a suspension point of the internal motor cover and external motor cover, thus blocking the path of transmission of the motor vibration from the internal motor cover to the vacuum cleaner housing and reducing the amount of vibration transferred from the internal motor cover to the external motor cover, making the resonance phenomenon between the external motor cover and the internal motor cover disappear; in operation, the internal motor cover vibrates independently in the external motor cover with little effect on the external motor cover, which makes the vibration amplitude of the vacuum cleaner housing reduced greatly, thereby reducing the vibration noise of the vacuum cleaner in operation; besides, when a user's hand contacts the outer surface of the vacuum cleaner, the numb feeling of hand is weakened greatly or even disappears, enhancing the user experience.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The present invention will be further described below with reference to drawings and examples.
    • Fig. 1 is a partial sectional view of the vacuum cleaner in the example of the present invention; and
    • Fig. 2 is an enlarged view of the portion A in Fig. 1.
    Wherein: 1. internal motor cover; 2. cantilever; 21. connecting pin; 22. support plate; 23. screw; 3. external motor cover; 4. hanging hole; 5. damping medium; 6. motor; and 7. vacuum cleaner housing. DETAILED DESCRIPTION OF THE EMBODIMENTS
  • Fig. 1 and Fig. 2 show one specific example of the vacuum cleaner having motor damping structure of the present invention, which comprises an internal motor cover 1 and an external motor cover 2 disposed outside the internal motor cover 1, wherein a motor 6 is mounted inside the internal motor cover 1, and the external motor cover 2 is fixed inside the vacuum cleaner housing 7.
  • The key improvement of this example is that the internal motor cover 1 is hung and fixed inside the external motor cover 3 through a cantilever 2. The specific structure is as follows:
    • A hanging hole 4, formed on the external motor cover 3, is provided inside with a damping medium 5 with a vertical through hole (not shown in the drawing); the cantilever 2, hung at the vertical through hole of the damping medium 5, is in no direct contact with and completely isolated from the external motor cover 3; and the entire internal motor cover 1 is completely isolated from and in no direct contact with the external motor cover 3. The damping medium 5 can be made of a sponge, and certainly can also be made of other flexible materials such as rubber and a spring.
  • In this example, the detailed structure of the cantilever 2 may be as shown in Fig. 2: The cantilever 2 is composed of a connecting pin 21 inserted into the vertical through hole of the damping medium 5, a support plate 22 supported above the damping medium 5, and a screw 23 for fixedly connecting the connecting pin 21 to the support plate 22, wherein the connecting pin 21 is integrally connected at its bottom with the internal motor cover 1, i.e., the connecting pin 21 is formed integrally with the internal motor cover 1. The support plate 22 is provided with a vertical mounting through hole, and the connecting pin 21 is provided with a vertical threaded hole. While assembling, first making the connecting pin 21 go from bottom to top into the vertical through hole of the damping medium 5, then placing the support plate 22 horizontally above the damping medium 5, making the mounting through hole in the support plate 22 aligned with the threaded hole in the connecting pin 21, and then screwing the screw 23 from top to bottom into the threaded hole in the connecting pin 21, thus making the connecting pin 21 fixedly connected together with the support plate 22, the support plate 22 being supported above the damping medium 5 and pulling the hung internal motor cover 1 to prevent it from falling down.
  • In order to ensure the connecting strength between the internal motor cover 1 and the external motor cover 3 as well as prevent the internal motor cover 1 from shaking substantially in the external motor cover 3, two or more cantilevers 2 are generally provided, there being totally four cantilevers 2 in this example. Certainly, we can also set one cantilever 2.
  • When the vacuum cleaner is in operation, the motor 6 runs to drive the internal motor cover 1 to vibrate; the vibration of the internal motor cover 1 can be released in the presence of the damping medium 5 of a soft material, and the internal motor cover 1 is completely isolated from the external motor cover 3, which effectively reduce the effect of transmission of the vibration produced by the internal motor cover 1 to the external motor cover 3, and make the vibration amplitude of the external motor cover 3 extremely small or even be zero, further reducing the amount of vibration of the vacuum cleaner housing 7, weakening the vibration noise caused by resonance of the entire machine resulted from high speed rotation of the motor, thus there being no "numb" feeling of hand any more when a hand is in contact with the outer surface of the vacuum cleaner housing 7.
  • Certainly, the above example is used only for explaining the technical concept and characteristics of the present invention. It is provided to make people understand the present invention and implement it, rather than limit the scope of protection thereof. Any equivalent alteration or modification made according to the main technical solution of the present invention should fall within the scope of protection of the present invention.

Claims (6)

  1. A vacuum cleaner having a motor damping structure, comprising an internal motor cover (1) hung and fixed inside an external motor cover (3) through a cantilever (2), characterized in that a hanging hole (4) is formed on the external motor cover (3) and the cantilever (2) is hung at the hanging hole (4), and wherein a damping medium (5) is disposed at a suspension point of the internal motor cover (1) and external motor cover (3).
  2. The vacuum cleaner having the motor damping structure according to claim 1, wherein the hanging hole (4) is provided inside with the damping medium (5) with a vertical through hole, the cantilever (2) being hung at the vertical through hole of the damping medium (5).
  3. The vacuum cleaner having the motor damping structure according to claim 2, wherein the cantilever (2) is composed of a connecting pin (21) inserted into the vertical through hole of the damping medium (5), a support plate (22) supported above the damping medium (5), and a screw (23) for fixedly connecting the connecting pin (21) to the support plate (22), wherein the connecting pin (21) is integrally connected at its bottom with the internal motor cover (1).
  4. The vacuum cleaner having the motor damping structure according to claim 2, wherein the damping medium (5) is made of a sponge, rubber or a spring.
  5. The vacuum cleaner having the motor damping structure according to claim 1, comprising one or more cantilevers (2).
  6. The vacuum cleaner having the motor damping structure according to claim 5, comprising four cantilevers (2).
EP14192199.9A 2014-06-27 2014-11-07 A vacuum cleaner having motor damping structure Active EP2959816B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410301150.6A CN104083124B (en) 2014-06-27 2014-06-27 A kind of dust catcher with electric motor damping structure

Publications (2)

Publication Number Publication Date
EP2959816A1 EP2959816A1 (en) 2015-12-30
EP2959816B1 true EP2959816B1 (en) 2017-01-11

Family

ID=51630966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14192199.9A Active EP2959816B1 (en) 2014-06-27 2014-11-07 A vacuum cleaner having motor damping structure

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EP (1) EP2959816B1 (en)
CN (1) CN104083124B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106122360A (en) * 2016-06-24 2016-11-16 滁州东菱电器有限公司 A kind of denoising structure of soft contact type suspension mechanism
EP3496584A1 (en) * 2016-08-08 2019-06-19 Carcoustics TechConsult GmbH Noise-reducing casing of a fan motor unit of a vacuum cleaner, and vacuum cleaner
CN106340998B (en) * 2016-11-15 2019-10-18 苏州海歌电器科技有限公司 Motor of dust collector shock-damping structure
CN107769447A (en) * 2017-12-05 2018-03-06 珠海格力电器股份有限公司 Motor shock-absorbing structure and stock machine
CN109088507A (en) * 2018-09-27 2018-12-25 苏州市春菊电器有限公司 A kind of cleaner motor damping device
DE102019102020A1 (en) * 2019-01-28 2020-07-30 Miele & Cie. Kg vacuum cleaner
CN114812294A (en) * 2022-03-02 2022-07-29 武汉高德红外股份有限公司 High-overload-resistant electric steering engine with telescopic wings

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US3874023A (en) * 1973-09-13 1975-04-01 Hoover Co Resiliently mounted motor and fan arrangement for a canister cleaner or the like
US4592764A (en) * 1983-06-30 1986-06-03 Sharp Kabushiki Kaisha Vacuum cleaner
US4597131A (en) * 1984-07-16 1986-07-01 Whirlpool Corporation Mounting for motor-fan unit
DE4100858A1 (en) * 1991-01-14 1992-07-16 Siemens Ag Vacuum cleaner with blower unit - has blower in inner housing capsule located in outer capsule, leaving flow space, and free space between outer capsule and housing
JP2001258205A (en) * 2000-03-15 2001-09-21 Minebea Co Ltd Motor
DE10062368A1 (en) * 2000-12-14 2002-06-20 Bsh Bosch Siemens Hausgeraete Arrangement for damping the vibration emanating from an engine
RU2430673C1 (en) * 2008-02-12 2011-10-10 Кабусики Кайся Тосиба Electric vacuum cleaner
CN201378766Y (en) * 2009-03-26 2010-01-06 罗建元 Cushioning and damping device for dust cleaner motor
CN203138348U (en) * 2013-01-23 2013-08-21 江苏美的春花电器股份有限公司 Mute dust collector
CN204033239U (en) * 2014-06-27 2014-12-24 莱克电气股份有限公司 A kind of dust catcher with electric motor damping structure

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Also Published As

Publication number Publication date
CN104083124B (en) 2017-06-13
CN104083124A (en) 2014-10-08
EP2959816A1 (en) 2015-12-30

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