EP2907435A1 - A structure for reducing the motor noise of a vacuum cleaner - Google Patents

A structure for reducing the motor noise of a vacuum cleaner Download PDF

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Publication number
EP2907435A1
EP2907435A1 EP14193320.0A EP14193320A EP2907435A1 EP 2907435 A1 EP2907435 A1 EP 2907435A1 EP 14193320 A EP14193320 A EP 14193320A EP 2907435 A1 EP2907435 A1 EP 2907435A1
Authority
EP
European Patent Office
Prior art keywords
motor
support
motor cover
cover
vacuum cleaners
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.)
Granted
Application number
EP14193320.0A
Other languages
German (de)
French (fr)
Other versions
EP2907435B1 (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
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Filing date
Publication date
Application filed by Kingclean Electric Co Ltd filed Critical Kingclean Electric Co Ltd
Priority to PL14193320T priority Critical patent/PL2907435T3/en
Publication of EP2907435A1 publication Critical patent/EP2907435A1/en
Application granted granted Critical
Publication of EP2907435B1 publication Critical patent/EP2907435B1/en
Active legal-status Critical Current
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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 a motor denoising structure applied to vacuum cleaners.
  • 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 a spring device, 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 a spring device disposed between a motor support and a motor cover to support the motor support.
  • the motor support comprises an enclosing portion disposed against an outer side of the motor, and a supporting portion extending from the enclosing portion, with the spring device comprising two or more springs disposed between an upper edge of the motor cover and the supporting portion of the motor support.
  • the motor support comprises at least one pair of supports engaging each other, between each of the supports and the motor cover being connected the spring device, which comprises a flexible support and a spring; the inner end portion of the flexible support is jointed to the corresponding support, and connected and fixed through a screw; the spring extends longitudinally, and is disposed between a lower end face of the outer end portion of the flexible support and the motor cover.
  • the motor cover is provided at its upper edge opposite to each of the springs with a mounting groove, respectively;
  • the mounting groove is provided at its central portion with a guide post, outside which is sleeved the spring that is disposed with its lower end against the bottom of the mounting groove, the flexible support being provided at its outer end portion with an opening groove for the above guide post to go through.
  • the flexible support is a flexible metal sheet.
  • the lower portion of the motor 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.
  • Example 1 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 is provided at its periphery with a motor support 3 used for fixing the motor, the motor cover 2 supporting the motor support 3 through a spring device 4.
  • the motor support 3 comprises an enclosing portion 31 disposed against an outer side of the motor, and a supporting portion 32 extending from the enclosing portion 31, with the spring device 4 comprising two or more springs 41 disposed between an upper edge of the motor cover 2 and the supporting portion 32 of the motor support 3.
  • Example 2 As shown in Figs. 2 and 3 , a motor denoising structure applied to vacuum cleaners, comprising a motor 1, a motor cover 2, and an external motor cover 6 connected and fixed to the motor cover 2, the motor 1 being provided at its periphery with a motor support 3 used for fixing the motor, the motor cover 2 supporting the motor support 3 through a spring device 4.
  • the motor support 3 comprises at least one pair of supports 33 engaging each other, between each of the supports 33 and the motor cover 2 being connected the spring device 4, which comprises a flexible support 42 and a spring 43; the inner end portion of the flexible support 42 is jointed to the corresponding support 33, and connected and fixed through a screw 5; the spring 43 extends longitudinally, and is disposed between a lower end face of the outer end portion of the flexible support 42 and the motor cover 2.
  • the motor cover 2 is provided at its upper edge opposite to each of the springs 43 with a mounting groove 21, respectively;
  • the mounting groove 21 is provided at its central portion with a guide post 22, outside which is sleeved the spring 43 that is disposed with its lower end against the bottom of the mounting groove 21, the flexible support 42 being provided at its outer end portion with an opening groove 421 for the above guide post 22 to go through.
  • the flexible support 42 is a flexible metal sheet, at least a part of which is accommodated by the motor cover 2, with its outer end portion and inner end portion intersecting at a right angle having a gradually transitional arc.
  • a lower portion of the motor 1 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 supports the motor support 3 through the spring device 4, such a flexible connection reducing noise while reducing vibration. Meanwhile, ensuring that the lower portion of the motor 1 is suspended can prevent 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.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The present invention discloses a motor denoising structure applied to vacuum cleaners, with a spring device 4 disposed between a motor support 3 and a motor cover 2 to support the motor support 3; in the present invention the motor cover 2 supports the motor support 3 through the spring device 4, such a flexible connection reducing noise while reducing vibration.

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.
    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 a spring device, 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 a spring device disposed between a motor support and a motor cover to support the motor support.
  • A first further technical solution of the present invention is as follows: The motor support comprises an enclosing portion disposed against an outer side of the motor, and a supporting portion extending from the enclosing portion, with the spring device comprising two or more springs disposed between an upper edge of the motor cover and the supporting portion of the motor support.
  • A second further technical solution of the present invention is as follows: The motor support comprises at least one pair of supports engaging each other, between each of the supports and the motor cover being connected the spring device, which comprises a flexible support and a spring; the inner end portion of the flexible support is jointed to the corresponding support, and connected and fixed through a screw; the spring extends longitudinally, and is disposed between a lower end face of the outer end portion of the flexible support and the motor cover.
  • Furthermore, the motor cover is provided at its upper edge opposite to each of the springs with a mounting groove, respectively; the mounting groove is provided at its central portion with a guide post, outside which is sleeved the spring that is disposed with its lower end against the bottom of the mounting groove, the flexible support being provided at its outer end portion with an opening groove for the above guide post to go through. The flexible support is a flexible metal sheet.
  • In the above two technical solutions, in order to better damp vibration and reduce noise, the lower portion of the motor 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 the spring device, 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 an embodiment of the present invention;
    • Fig. 2 is an assembly drawing of another embodiment of the present invention; and
    • Fig. 3 is a structural schematic view of Fig. 2 after assembly.
  • Wherein:
    1. 1. motor;
    2. 2. motor cover; 21. mounting groove; 22. guide post;
    3. 3. motor support; 31. enclosing portion; 32. supporting portion; 33. support;
    4. 4. spring device; 41. spring; 42. flexible support; 421. opening groove; 43. spring;
    5. 5. screw; and
    6. 6. external motor cover.
    DETAILED DESCRIPTION OF THE EMBODIMENTS
  • Example 1: 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 is provided at its periphery with a motor support 3 used for fixing the motor, the motor cover 2 supporting the motor support 3 through a spring device 4.
  • Furthermore, the motor support 3 comprises an enclosing portion 31 disposed against an outer side of the motor, and a supporting portion 32 extending from the enclosing portion 31, with the spring device 4 comprising two or more springs 41 disposed between an upper edge of the motor cover 2 and the supporting portion 32 of the motor support 3.
  • Example 2: As shown in Figs. 2 and 3, a motor denoising structure applied to vacuum cleaners, comprising a motor 1, a motor cover 2, and an external motor cover 6 connected and fixed to the motor cover 2, the motor 1 being provided at its periphery with a motor support 3 used for fixing the motor, the motor cover 2 supporting the motor support 3 through a spring device 4.
  • The motor support 3 comprises at least one pair of supports 33 engaging each other, between each of the supports 33 and the motor cover 2 being connected the spring device 4, which comprises a flexible support 42 and a spring 43; the inner end portion of the flexible support 42 is jointed to the corresponding support 33, and connected and fixed through a screw 5; the spring 43 extends longitudinally, and is disposed between a lower end face of the outer end portion of the flexible support 42 and the motor cover 2. In this example, the motor cover 2 is provided at its upper edge opposite to each of the springs 43 with a mounting groove 21, respectively; the mounting groove 21 is provided at its central portion with a guide post 22, outside which is sleeved the spring 43 that is disposed with its lower end against the bottom of the mounting groove 21, the flexible support 42 being provided at its outer end portion with an opening groove 421 for the above guide post 22 to go through. The flexible support 42 is a flexible metal sheet, at least a part of which is accommodated by the motor cover 2, with its outer end portion and inner end portion intersecting at a right angle having a gradually transitional arc.
  • In the above examples, in order to better damp vibration and reduce noise, a lower portion of the motor 1 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 is preferred in the example.
  • In the present invention, the motor cover 2 supports the motor support 3 through the spring device 4, such a flexible connection reducing noise while reducing vibration. Meanwhile, ensuring that the lower portion of the motor 1 is suspended can prevent 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.
  • 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 examples, 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 (7)

  1. A motor denoising structure applied to vacuum cleaners, characterized in that: a spring device (4) is disposed between a motor support (3) and a motor cover (2) to support the motor support (3).
  2. The motor denoising structure applied to vacuum cleaners according to claim 1, wherein the motor support (3) comprises an enclosing portion (31) disposed against an outer side of the motor, and a supporting portion (32) extending from the enclosing portion (31), with the spring device (4) comprising two or more springs (41) disposed between an upper edge of the motor cover (2) and the supporting portion (32) of the motor support (3).
  3. The motor denoising structure applied to vacuum cleaners according to claim 1, wherein the motor support (3) comprises at least one pair of supports (33) engaging each other, between each of the supports (41) and the motor cover (3) being connected a spring device (4), which comprises a flexible support (42) and a spring (43); the inner end portion of the flexible support (42) is jointed to the corresponding support (33), and connected and fixed through a screw (5); the spring (43) extends longitudinally, and is disposed between a lower end face of an outer end portion of the flexible support (42) and the motor cover (2).
  4. The motor denoising structure applied to vacuum cleaners according to claim 3, wherein the motor cover (2) is provided at its upper edge opposite to each of the springs (43) with a mounting groove (21), respectively; the mounting groove (21) is provided at its central portion with a guide post (22), outside which is sleeved the spring (43) that is disposed with its lower end against the bottom of the mounting groove (21), the flexible support (42) being provided at its outer end portion with an opening groove (421) for the above guide post (22) to go through.
  5. The motor denoising structure applied to vacuum cleaners according to claim 3, wherein the flexible support (42) is a flexible metal sheet.
  6. The motor denoising structure applied to vacuum cleaners according to any of claims 1-5, wherein a lower portion of the motor (1) is suspended inside the motor cover (2).
  7. The motor denoising structure applied to vacuum cleaners according to any of claims 1-5, wherein the motor cover (2) is provided with an external motor cover (6) fixedly connected thereto.
EP14193320.0A 2014-02-18 2014-11-14 A vacuum cleaner having a motor denoising structure Active EP2907435B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14193320T PL2907435T3 (en) 2014-02-18 2014-11-14 A vacuum cleaner having a motor denoising structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201420068274 2014-02-18
CN201410141348.2A CN104840155B (en) 2014-02-18 2014-04-10 A kind of noise reduction structure of motor for being applied to dust catcher

Publications (2)

Publication Number Publication Date
EP2907435A1 true EP2907435A1 (en) 2015-08-19
EP2907435B1 EP2907435B1 (en) 2017-01-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14193320.0A Active EP2907435B1 (en) 2014-02-18 2014-11-14 A vacuum cleaner having a motor denoising structure

Country Status (3)

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EP (1) EP2907435B1 (en)
CN (1) CN104840155B (en)
PL (1) PL2907435T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3257418A4 (en) * 2015-02-15 2018-11-14 Kingclean Electric Co., Ltd. Motor noise reduction structure for dust collector, and dust collector
CN109528081A (en) * 2018-12-24 2019-03-29 宁波富佳实业股份有限公司 Negative pressure device with denoising structure
US11116369B2 (en) 2016-04-27 2021-09-14 Diversey, Inc. Vacuum cleaner
CN115444305A (en) * 2022-09-15 2022-12-09 苏州市春菊电器有限公司 Dust collector assembly capable of improving noise reduction effect of dust collector

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105054866B (en) * 2015-08-20 2018-01-16 莱克电气股份有限公司 Floated noise reduction motor
CN107485331A (en) * 2017-09-08 2017-12-19 苏州海歌电器科技有限公司 The dampening assembly of motor of dust collector
CN108719116B (en) * 2018-08-29 2023-12-19 莱克电气股份有限公司 A dual air duct noise reduction motor assembly for pet washing machines

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009101775A1 (en) * 2008-02-12 2009-08-20 Kabushiki Kaisha Toshiba Electric vacuum cleaner
EP2227998A1 (en) * 2007-11-22 2010-09-15 Kabushiki Kaisha Toshiba Electric cleaner

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
GB520344A (en) * 1937-10-20 1940-04-22 Electrolux Ltd Improvements in or relating to vacuum cleaners
NL256141A (en) * 1954-05-19
US4161812A (en) * 1975-12-01 1979-07-24 General Electric Company Methods of securing torsionally flexible motor mounting arrangements to supports therefor
CN203328633U (en) * 2013-05-27 2013-12-11 莱克电气股份有限公司 Vacuum cleaner with motor buffer structure
CN203852307U (en) * 2014-02-18 2014-10-01 莱克电气股份有限公司 Motor denoising structure applied to dust collector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2227998A1 (en) * 2007-11-22 2010-09-15 Kabushiki Kaisha Toshiba Electric cleaner
WO2009101775A1 (en) * 2008-02-12 2009-08-20 Kabushiki Kaisha Toshiba Electric vacuum cleaner

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3257418A4 (en) * 2015-02-15 2018-11-14 Kingclean Electric Co., Ltd. Motor noise reduction structure for dust collector, and dust collector
US10524626B2 (en) 2015-02-15 2020-01-07 Kingclean Electric Co., Ltd. Motor noise reduction structure for dust collector, and dust collector
US11116369B2 (en) 2016-04-27 2021-09-14 Diversey, Inc. Vacuum cleaner
US11452412B2 (en) 2016-04-27 2022-09-27 Diversey, Inc. Vacuum cleaner
US11937759B2 (en) 2016-04-27 2024-03-26 Diversey Switzerland Services Gmbh Vacuum cleaner
CN109528081A (en) * 2018-12-24 2019-03-29 宁波富佳实业股份有限公司 Negative pressure device with denoising structure
CN115444305A (en) * 2022-09-15 2022-12-09 苏州市春菊电器有限公司 Dust collector assembly capable of improving noise reduction effect of dust collector
CN115444305B (en) * 2022-09-15 2023-10-13 苏州市春菊电器有限公司 Dust collector assembly for improving noise reduction effect of dust collector

Also Published As

Publication number Publication date
CN104840155A (en) 2015-08-19
EP2907435B1 (en) 2017-01-11
PL2907435T3 (en) 2017-10-31
CN104840155B (en) 2017-06-13

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