WO2021007795A1 - Amortisseur de vibrations - Google Patents

Amortisseur de vibrations Download PDF

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Publication number
WO2021007795A1
WO2021007795A1 PCT/CN2019/096281 CN2019096281W WO2021007795A1 WO 2021007795 A1 WO2021007795 A1 WO 2021007795A1 CN 2019096281 W CN2019096281 W CN 2019096281W WO 2021007795 A1 WO2021007795 A1 WO 2021007795A1
Authority
WO
WIPO (PCT)
Prior art keywords
mounting
fine hole
mounting portion
fluid communication
vibration damper
Prior art date
Application number
PCT/CN2019/096281
Other languages
English (en)
Inventor
Heinz-Dieter Eichholz
Dusko VUKOMAN
Original Assignee
Zhejiang Sanhua Intelligent Controls Co., Ltd.
Bleckmann Gmbh & Co. Kg
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 Zhejiang Sanhua Intelligent Controls Co., Ltd., Bleckmann Gmbh & Co. Kg filed Critical Zhejiang Sanhua Intelligent Controls Co., Ltd.
Priority to PCT/CN2019/096281 priority Critical patent/WO2021007795A1/fr
Publication of WO2021007795A1 publication Critical patent/WO2021007795A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/0418—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall having a particular shape, e.g. annular, spherical, tube-like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/0454—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by the assembling method or by the mounting arrangement, e.g. mounting of the membrane

Definitions

  • the present application relates to a vibration damper, of which one end is used for connecting a fixed wall and the other end is used for connecting a vibration source (such as a pump or a motor) , which is suitable for the technical field of home appliances (for example, a dishwasher) .
  • a vibration source such as a pump or a motor
  • Vibration dampers are used to absorb vibration and reduce the vibrational effects of the vibration source on the entire system.
  • Existing vibration dampers are often integrally formed and their materials are mainly made of elastic materials. In use, the vibration is absorbed by the elastic deformation of the elastic material itself.
  • the current existing design is complicated in structure, difficult to manufacture and poor in durability.
  • An object of the present application is to provide a vibration damper which is simple to manufacture and has excellent durability.
  • a vibration damper includes a mounting portion for connecting to an external component, and a tubular portion provided separately from the mounting portion and assembled with the mounting portion.
  • the tubular portion is provided with an internal space which is in fluid communication with an external space through a fine hole.
  • the mounting portion includes a first mounting portion and a second mounting portion. Two sides of the tubular portion are locked with the first mounting portion and the second mounting portion, respectively.
  • the first mounting portion includes a first sleeve portion
  • the second mounting portion includes a second sleeve portion.
  • One side of the tubular portion is at least partially inserted into the first sleeve portion, and the other side of the tubular portion is at least partially inserted in the second sleeve portion.
  • the tubular portion includes a first locking portion to engage with the first sleeve portion and a second locking portion to engage with the second sleeve portion.
  • the first mounting portion includes a first wall portion connected to the first sleeve portion.
  • the second mounting portion includes a second wall portion connected to the second sleeve portion.
  • the fine hole includes a first fine hole which extends through the first wall portion and in fluid communication with the internal space, and a second fine hole which extends through the second wall portion and in fluid communication with the internal space.
  • the first mounting portion includes a first protrusion extending from the first wall portion along an axial direction and a first end cover located at an end of the first protrusion.
  • the first protrusion is provided with a first mounting rib for mounting an external component.
  • the fine hole includes a third fine hole extending through the first end cover and in fluid communication with the internal space.
  • the second mounting portion includes a second protrusion extending from the second wall portion in the axial direction and a second end cover located at an end of the second protrusion.
  • the second protrusion is provided with a second mounting rib for mounting an external component.
  • the fine hole includes a fourth fine hole which extends through the second end cover and in fluid communication with the internal space.
  • the first mounting portion includes a first cavity which is in fluid communication with the internal space through the first fine hole.
  • the first cavity is in fluid communication with the external space through the third fine hole.
  • the second mounting portion includes a second cavity which is in fluid communication with the internal space through the second fine hole.
  • the second cavity is in fluid communication with the external space through the fourth fine hole.
  • the first mounting portion includes a first wall portion and a first protrusion extending from the first wall portion.
  • the first protrusion is provided with a first mounting rib for mounting an external component.
  • the second mounting portion includes a second wall portion and a second protrusion extending from the second wall portion.
  • the second protrusion is provided with a second mounting rib for mounting an external component.
  • the first wall portion is provided with a first through hole
  • the second wall portion is provided with a second through hole.
  • One side of the tubular portion is provided with a first locking portion which extends through the first through hole to lock with the first wall portion
  • the other side of the tubular portion is provided a second locking portion which extends through the second through hole to lock with the second wall portion.
  • the first protrusion is provided with a first cavity which is in fluid communication with the external space
  • the second protrusion is provided with a second cavity which is in fluid communication with the external space.
  • the fine hole includes a first fine hole extending through the first wall portion and a second fine hole extending through the second wall portion. The first fine hole is in fluid communication with the internal space and the first cavity, and the second fine hole is in fluid communication with the internal space and the second cavity.
  • the vibration damper is made of an elastically deformable material.
  • the first mounting portion and the second mounting portion are symmetrically mounted at two ends of the tubular portion.
  • the first mounting portion is identical in structure to the second mounting portion.
  • the present application simplifies the structure of each component by separately making the tubular portion and the mounting portion, which is convenient for manufacturing.
  • air can be used as a damping medium so that the influence on the deformation of the vibration damper itself can be reduced and durability can be improved accordingly.
  • FIG. 1 is a perspective view of a vibration damper according to an embodiment of the present application.
  • FIG. 2 is a partially exploded perspective view of FIG. 1.
  • FIG. 3 is another partially exploded perspective view of FIG. 2.
  • FIG. 4 is a further exploded perspective view of FIG. 2.
  • FIG. 5 is a further exploded perspective view of FIG. 3.
  • FIG. 6 is a top view of FIG. 1.
  • FIG. 7 is a perspective view taken along line A-Aof FIG. 1.
  • FIG. 8 is a cross-sectional view taken along line A-Aof FIG. 1.
  • FIG. 9 is a schematic illustration of the vibration damper of FIG. 8 when coupled to external components.
  • FIG. 10 is a perspective view of a vibration damper according to another embodiment of the present application.
  • FIG. 11 is an exploded perspective view of FIG. 10.
  • FIG. 12 is a top view of FIG. 10.
  • FIG. 13 is a perspective view taken along line B-B of FIG. 10.
  • FIG. 14 is a cross-sectional view taken along line B-B of FIG. 10.
  • FIG. 15 is a schematic illustration of the vibration damper of FIG. 14 when coupled to external components.
  • a vibration damper 100 including a mounting portion 1 for connecting to an external component, and a tubular portion 2 provided separately from the mounting portion 1 and assembled with the mounting portion 1.
  • the mounting portion 1 includes a first mounting portion 3 and a second mounting portion 4, wherein two sides of the tubular portion 2 are engaged with the first mounting portion 3 and the second mounting portion 4, respectively.
  • the tubular portion 2 is provided with an internal space 20 which is in fluid communication with the external space through a fine hole 5.
  • the first mounting portion 3 includes a first sleeve portion 31, a first wall portion 32 connected to the first sleeve portion 31, a first protrusion 33 extending from the first wall portion 32 along an axial direction M-M, and a first end cover 34 located at an end of the first protrusion 33.
  • the second mounting portion 4 includes a second sleeve portion 41, a second wall portion 42 connected to the second sleeve portion 41, a second protrusion 43 extending from the second wall portion 42 along the axial direction M-M, and a second end cover 44 located at an end of the second protrusion 43.
  • One side (for example, an upper side) of the tubular portion 2 is at least partially inserted into the first sleeve portion 31, and the other side (for example, an lower side) of the tubular portion 2 is at least partially inserted into the second sleeve portion 41.
  • the tubular portion 2 and the first sleeve portion 31, and the tubular portion 2 and the second sleeve portion 41 are provided with locking structures which are coupled to each other.
  • the tubular portion 2 includes a first locking portion 21 which engages with the first sleeve portion 31 and a second locking portion 22 which engages with the second sleeve portion 41.
  • first locking portion 21 and the second locking portion 22 can also be disposed inside the first sleeve portion 31 and the second sleeve portion 41, respectively.
  • mating surfaces of the first sleeve portion 31 and the second sleeve portion 41 engage with each other, and a joint surface of the first sleeve portion 31 and the second sleeve portion 41 is located substantially at the middle of the tubular portion 2.
  • the fine hole 5 includes a first fine hole 51 which extends through the first wall portion 32 and in fluid communication with the internal space 20, a second fine hole 52 which extends through the second wall portion 42 and in fluid communication with the internal space 20, a third fine hole 53 which extends through the first end cover 34 and in fluid communication with the internal space 20, and a fourth fine hole 54 which extends through the second end cover 44 and in fluid communication with the internal space 20.
  • the first mounting portion 3 includes a first cavity 30 which is in fluid communication with the internal space 20 through the first fine hole 51.
  • the first cavity 30 is in fluid communication with the external space through the third fine hole 53.
  • the second mounting portion 4 includes a second cavity 40 which is in fluid communication with the internal space 20 through the second fine hole 52.
  • the second cavity 40 is in fluid communication with the external space through the fourth fine hole 54.
  • the position of the fine hole 5 can also be provided on the wall surface of the first sleeve portion 31 and/or the second sleeve portion 41, or can be disposed on any reasonable location of the vibration damper 100 where the internal space 20 can be in fluid communication with the external space.
  • the term “fine hole” as used in the present application means that when the vibration damper 100 absorbs vibration, the internal space 20 is changed in volume (for example, the volume becomes small) , and the air in the internal space 20 is compressed so that the compressed air flow can be adjusted through the “fine pore” .
  • the air in the internal space 20 functions as a damping medium by being compressed. Therefore, it can be understood that the size of the “fine hole” should not be designed too large, otherwise it is impossible to provide a reasonable time for air compression, thus the air cannot be used as a damping medium in reality.
  • the first protrusion 33 is provided with a first mounting rib 331 for mounting an external component, such as a support wall 61 of a pump or a motor.
  • the second protrusion 43 is provided with a second mounting rib 431 for mounting an external component, such as a fixed wall 62 of a dishwasher.
  • the vibration damper 100 connects the vibration source to the fixed wall.
  • the first mounting rib 331 and the first wall portion 32 together hold the external component (such as the support wall 61 of a pump or a motor)
  • the second mounting rib 431 and the second wall portion 42 together hold the external component (such as the fixed wall 62 of a dishwasher) .
  • the vibration damper 100 is made of an elastically deformable material (for example, rubber) .
  • the first mounting portion 3 and the second mounting portion 4 are symmetrically mounted at two ends of the tubular portion 2.
  • the first mounting portion 3 has the same structure as the second mounting portion 4.
  • the present application simplifies the structure of each component by reducing the manufacturing difficulty via designing the mounting portion 1 and the tubular portion 2 as two separate components which are separately made but assembled together.
  • the first mounting portion 3 and the second mounting portion 4 in the same manner, it is possible to share a single mold, which will reduce the manufacturing cost.
  • the vibration damper 100 of the present application is elastically deformed under the influence of a vibration source such as a pump or a motor. At this time, the vibration damper 100 is elastically deformed, and the internal space 20 of the tubular portion 2 is squeezed. While the volume is reduced, the medium (air, for example) in the internal space 20 is at least partially extruded outward. During this process, the medium (air, for example) acts as a damping to prevent excessive deformation of the vibration damper 100. When the vibration is alleviated, the elastic deformation of the vibration damper 100 gradually recovers, the internal space 20 of the tubular portion 2 is gradually restored to the original volume, and an external medium (air, for example) is newly replenished into the internal space 20. In this process, the medium (air, for example) can also play a certain damping effect.
  • a vibration damper 100’ including a mounting portion 1’ for connecting with an external component and a tubular portion 2’ provided separately from the mounting portion 1’ and assembled with the mounting portion 1’ .
  • the mounting portion 1’ includes a first mounting portion 3’ and a second mounting portion 4’ . Two sides of the tubular portion 2’ are locking with the first mounting portion 3’ and the second mounting portion 4’ , respectively.
  • the tubular portion 2’ is provided with an internal space 20’ which is in fluid communication with the external space through a fine hole 5’ .
  • the first mounting portion 3’ includes a first wall portion 32’ and a first protrusion 33’ extending from the first wall portion 32’ .
  • the first protrusion 33’ is provided with a first mounting rib 331’ for mounting an external component (such as a support wall 61’ of a pump or motor) .
  • the second mounting portion 4’ includes a second wall portion 42’ and a second portion extending from the second wall portion 42’ .
  • the second protrusion 43’ is provided with a second mounting rib 431’ for mounting an external component (such as a fixed wall 62’ of a dishwasher) .
  • the first wall portion 32’ is provided with a first through hole 321’
  • the second wall portion 42’ is provided with a second through hole 421’
  • One side (for example, an upper side) of the tubular portion 2’ is provided with a first locking portion 23’ which extends through the first through hole 321’ to engage with the first wall portion 32’
  • the other side (for example, a lower side) of the tubular portion 2’ is provided with a second locking portion 24’ which extends through the second through hole 421’ to engage with the second wall portion 42’ .
  • the first protrusion 33’ defines a first cavity 30’ which is in fluid communication with the external space.
  • the second protrusion 43’ defines a second cavity 40’ which is in fluid communication with the external space.
  • the fine hole 5’ include a first fine hole 51’ extending through the first wall portion 32’ to fluidly communicate the internal space 20’ with the first cavity 30’ , and a second fine hole 52’ extending through the second wall portion 42’ to fluidly communicate the internal space 20’ with the second cavity 40’ .
  • the vibration damper 100’ operates in the same manner as the vibration damper 100, thus it will not be described again herein.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Devices Of Dampers And Springs (AREA)

Abstract

L'invention concerne un amortisseur de vibrations. L'amortisseur de vibrations (100, 100') selon l'invention comprend une partie de montage (1, 1') destinée à être reliée à un composant externe, ainsi qu'une partie tubulaire (2, 2') disposée séparément de la partie de montage (1, 1') et assemblée avec celle-ci (1, 1'). La partie tubulaire (2, 2') est pourvue d'un espace interne (20, 20') en communication de fluide avec un espace externe à travers un trou fin (5, 5'). Cet agencement permet que, lorsque l'amortisseur de vibrations absorbe des vibrations et modifie l'espace interne, de l'air contenu dans l'espace interne s'écoule à travers le trou fin dans l'espace externe afin d'assurer une fonction d'amortissement.
PCT/CN2019/096281 2019-07-17 2019-07-17 Amortisseur de vibrations WO2021007795A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/096281 WO2021007795A1 (fr) 2019-07-17 2019-07-17 Amortisseur de vibrations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/096281 WO2021007795A1 (fr) 2019-07-17 2019-07-17 Amortisseur de vibrations

Publications (1)

Publication Number Publication Date
WO2021007795A1 true WO2021007795A1 (fr) 2021-01-21

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ID=74209680

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Application Number Title Priority Date Filing Date
PCT/CN2019/096281 WO2021007795A1 (fr) 2019-07-17 2019-07-17 Amortisseur de vibrations

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134212A (en) * 1982-12-16 1984-08-08 Continental Gummi Werke Ag A roller bellows for pneumatic vehicle suspensions
EP0501043B1 (fr) * 1991-02-26 1995-08-30 Bridgestone/Firestone, Inc. Butée encliquetée pour ressort pneumatique
CN2874127Y (zh) * 2005-11-23 2007-02-28 贵州前进橡胶有限公司 汽车复合减振橡胶空气弹簧总成
CN101263317A (zh) * 2005-07-27 2008-09-10 Bfs多样产品有限责任公司 多部件端件的组件和包括多部件端件的组件的空气弹簧组件
CN102574437A (zh) * 2009-08-19 2012-07-11 阿达斯空气悬架系统工业贸易有限公司 空气弹簧保险杠
CN206352631U (zh) * 2015-12-17 2017-07-25 爱信精机株式会社 空气弹簧

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2134212A (en) * 1982-12-16 1984-08-08 Continental Gummi Werke Ag A roller bellows for pneumatic vehicle suspensions
EP0501043B1 (fr) * 1991-02-26 1995-08-30 Bridgestone/Firestone, Inc. Butée encliquetée pour ressort pneumatique
CN101263317A (zh) * 2005-07-27 2008-09-10 Bfs多样产品有限责任公司 多部件端件的组件和包括多部件端件的组件的空气弹簧组件
CN2874127Y (zh) * 2005-11-23 2007-02-28 贵州前进橡胶有限公司 汽车复合减振橡胶空气弹簧总成
CN102574437A (zh) * 2009-08-19 2012-07-11 阿达斯空气悬架系统工业贸易有限公司 空气弹簧保险杠
CN206352631U (zh) * 2015-12-17 2017-07-25 爱信精机株式会社 空气弹簧

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