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WO2012048179A2 - Actionneur à bobine fixe et à égalisation d'effort pour dispositifs de déplacement de fluide - Google Patents

Actionneur à bobine fixe et à égalisation d'effort pour dispositifs de déplacement de fluide Download PDF

Info

Publication number
WO2012048179A2
WO2012048179A2 PCT/US2011/055196 US2011055196W WO2012048179A2 WO 2012048179 A2 WO2012048179 A2 WO 2012048179A2 US 2011055196 W US2011055196 W US 2011055196W WO 2012048179 A2 WO2012048179 A2 WO 2012048179A2
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
armatures
coil
fluid chamber
housing
Prior art date
Application number
PCT/US2011/055196
Other languages
English (en)
Other versions
WO2012048179A3 (fr
Inventor
Timothy S. Lucas
Original Assignee
Influent Corporation
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 Influent Corporation filed Critical Influent Corporation
Priority to BR112013008181A priority Critical patent/BR112013008181A2/pt
Priority to CN201180054608.7A priority patent/CN103210218B/zh
Priority to JP2013532964A priority patent/JP5941471B2/ja
Priority to EP11831649.6A priority patent/EP2625434A4/fr
Priority to US13/877,570 priority patent/US20130230419A1/en
Publication of WO2012048179A2 publication Critical patent/WO2012048179A2/fr
Publication of WO2012048179A3 publication Critical patent/WO2012048179A3/fr
Priority to IN704MUN2013 priority patent/IN2013MN00704A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/047—Pumps having electric drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04—Pumps having electric drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/043—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms two or more plate-like pumping flexible members in parallel

Definitions

  • This application relates to high-power long-life actuators for positive displacement fluid movers such as liquid pumps, gas compressors and synthetic jets.
  • Positive displacement fluid movers can provide high flow and pressure however in order to be suitable for many applications such as medical devices;
  • the present application discloses a dual armature/diaphragm actuator with a stationary coil mounted between the armatures, where the resulting magnetic force is applied directly between the two pistons thereby assuring that both pistons experience the same instantaneous actuation force in order to minimize vibration.
  • the means of actuation integrates the piston and actuator components to reduce the size of fluid movers for a given pumping power output, while eliminating any dynamic electrical components, such as vibrating wires that could lead to failure and reduced life.
  • FIG. 1 illustrates an embodiment of a fluid mover actuator that provides for the same actuator force being applied to both armatures.
  • FIG. 2 is a sectional view of the actuator of FIG. 1 showing the flux path that occurs when the coil is energized.
  • FIG. 3 is a sectional view that illustrates how the actuation system of FIG. 1 is applied to a fluid mover.
  • FIG. 4 is sectional view of the fluid mover of FIG. 3 that shows the mounting of the stationary coil.
  • FIG. 5 is a sectional view illustrating how both sides of each diaphragm can be used to form additional fluid chambers for applying energy to fluids.
  • FIG. 6 provides sectional and exploded views of an armature design that increases actuator efficiency by improving coil utilization.
  • Figure 1 illustrates certain key functional concepts of a fluid actuator according to an exemplary embodiment of the present invention where a stationary coil 6 is positioned between an identical pair of armatures 2 and 4.
  • a magnetic field is generated within armatures 2 and 4 and the resulting flux loop path of the field is illustrated by the dotted lines in Figure 2.
  • the magnetic field creates an attractive force in the air gap between the armatures that pulls the two armatures towards each other. Applying the force directly between the two armatures assures that the instantaneous forces, and therefore the force waveform, experienced by armatures 2 and 4 are always identical.
  • Figure 3 illustrates how the actuator of Figure 1 is used in a fluid moving device. Armatures 16 and 18 are bonded to respective diaphragms 8 and 10.
  • Diaphragms 8 and 10 each have an annular cantilever spring matrix making the diaphragms capable of larger axial displacements. In practice, diaphragms 8 and 10 would have an elastomeric over molding (not shown) to provide a pressure seal. Diaphragms 8 and 10 represent one of many kinds of diaphragms that could be used within the scope of the present invention while still exploiting the actuation principles thereof. The diaphragms may be configured, for example, as shown in International Patent Application No. PCT/US2011/022386, which is incorporated by reference herein in its entirety. Diaphragms 8 and 10 form a pressure tight seal with housing 12. Compression chamber 20 is bounded by diaphragms 8 and 10 and housing 12.
  • the fluid mover of Figure 3 can be operated at its mechanical mass-spring resonance frequency where the resonance frequency is determined by the combined spring stiffness of the diaphragm and fluid and the mass of the fluid and armature.
  • both sides of the diaphragms can be used for fluid work.
  • Figure 5 shows the addition of end plates 26 and 28 which create respective fluid chambers 30 and 32. Fluid chambers 30 and 32 can be used to convey energy to fluid for any of the above mentioned applications.
  • FIG. 6 shows an armature design for improving electro-mechanical transduction efficiency.
  • opposing armatures 40 and 42 are attached to respective diaphragms 34 and 36 with the diaphragms in turn being attached to housing 38.
  • a stationary coil 44 is rigidly mounted to housing 38 by coil arms 46 and 48.
  • the coil is more completely surrounded with the armature material compared to the design shown in Figures 3 and 4, where a portion of the coil is outside the armature material. Sections of the coil that are outside the armature material generate less of a magnetic field in the armatures which reduces the actuator's efficiency. Further variations may include alternate components used to create the force such as permanent magnets and moving- magnet stationary-coil voice coil type actuators, where the armatures would be replaced with a voice-coil type magnet and backing magnet iron to provide a coil air gap having a permanent magnetic field. Specific subcomponent designs for an actuator according to the present invention will be determined by good design practice in response to specific design and end-product requirements.
  • a fluid actuator according to the present invention can be driven at any frequency within the scope of the present invention. While performance advantages can be provided by operating the actuator at drive frequencies that are equal to or close to its mass-spring resonance, the scope of the present invention is not limited to the proximity of the drive frequency to the mass- spring resonance frequency. When drive frequencies are close enough to the mass- spring resonance that energy is stored in the resonance, then armature-diaphragm amplitudes will increase in proportion to the stored energy. The closer the drive frequency is to the instantaneous resonance frequency, the greater the stored energy and the greater the armature/diaphragm displacement and the greater the power transferred to the fluid in the fluid chamber for a given input power level. Operation of an actuator according to the present invention, either with or without stored energy, is considered within the scope of the present invention.
  • the armatures would typically be made of ferrous type metals having high magnetic permeability but that the degree of permeability and loss characteristics required will be based on the requirements of a given application.
  • drive circuits may be used to power a fluid mover actuator according to the present invention and will be apparent to one skilled in the art and these drive circuits may include resonance locking controls, such as a phase locked loop control or other CPU-based controls, to keep the drive frequency locked to the mechanical resonance frequency which can change due to changing system
  • Applications for a fluid mover actuator according to the present invention include moving air or liquids for heat exchange in thermal management applications via air pumps, liquid pumps or synthetic jets for a wide range of hot objects including electronics components such as microprocessors, power electronics components such as MODFETS, HBLEDs and any electronics components needing cooling as well as secondary heat exchange targets such as heatsinks, printed circuit cards and electronics enclosures.
  • Products needing such cooling include servers, PC towers, laptops, HBLED lamps, consumer electronics, PDAs or sealed electronics enclosures such as in cell phones, telecommunications and military applications.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Fluid-Damping Devices (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Electromagnets (AREA)

Abstract

L'invention concerne un dispositif de déplacement de fluide comprenant une première armature dynamique fixée à un élément souple et une deuxième armature dynamique fixée à un deuxième élément souple. Le dispositif de déplacement de fluide comprend également un boîtier et des premier et deuxième éléments souples fixés au boîtier de façon à former un volume de chambre à fluide délimité par le boîtier et les premier et deuxième éléments souples. Une bobine fixe de passage de courant est positionnée entre les première et deuxième armatures. Le courant circulant dans la bobine génère une force magnétique agissant sur les armatures, la bobine et les armatures étant positionnées et configurées de façon à garantir que la force magnétique instantanée à laquelle sont soumises les deux armatures est toujours identique indépendamment des positions relatives des armatures et indépendamment des propriétés instationnaires du courant.
PCT/US2011/055196 2010-10-08 2011-10-07 Actionneur à bobine fixe et à égalisation d'effort pour dispositifs de déplacement de fluide WO2012048179A2 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BR112013008181A BR112013008181A2 (pt) 2010-10-08 2011-10-07 atuador de bobina estacionária de equalização de força para movedores de fluido
CN201180054608.7A CN103210218B (zh) 2010-10-08 2011-10-07 用于流体移动器的力均等的固定式线圈致动器
JP2013532964A JP5941471B2 (ja) 2010-10-08 2011-10-07 流体移動装置のための力均等化固定コイルアクチュエータ
EP11831649.6A EP2625434A4 (fr) 2010-10-08 2011-10-07 Actionneur à bobine fixe et à égalisation d'effort pour dispositifs de déplacement de fluide
US13/877,570 US20130230419A1 (en) 2010-10-08 2011-10-07 Force-equalization stationary-coil actuator for fluid movers
IN704MUN2013 IN2013MN00704A (fr) 2010-10-08 2013-04-10

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39152410P 2010-10-08 2010-10-08
US61/391,524 2010-10-08

Publications (2)

Publication Number Publication Date
WO2012048179A2 true WO2012048179A2 (fr) 2012-04-12
WO2012048179A3 WO2012048179A3 (fr) 2012-08-30

Family

ID=45928449

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/055196 WO2012048179A2 (fr) 2010-10-08 2011-10-07 Actionneur à bobine fixe et à égalisation d'effort pour dispositifs de déplacement de fluide

Country Status (7)

Country Link
US (1) US20130230419A1 (fr)
EP (1) EP2625434A4 (fr)
JP (1) JP5941471B2 (fr)
CN (1) CN103210218B (fr)
BR (1) BR112013008181A2 (fr)
IN (1) IN2013MN00704A (fr)
WO (1) WO2012048179A2 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015042098A1 (fr) * 2013-09-18 2015-03-26 Aavid Thermalloy, Llc Membrane fluidique fractionnée
US9084845B2 (en) 2011-11-02 2015-07-21 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
WO2015171359A1 (fr) 2014-05-05 2015-11-12 Aavid Thermalloy, Llc Bobine plane et support pour actionneur de dispositif de déplacement de fluide
US9227000B2 (en) 2006-09-28 2016-01-05 Smith & Nephew, Inc. Portable wound therapy system
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
WO2016176132A1 (fr) 2015-04-29 2016-11-03 Aavid Thermalloy, Llc Ressort plat pour un dispositif de déplacement de fluide
US9901664B2 (en) 2012-03-20 2018-02-27 Smith & Nephew Plc Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination
US9956121B2 (en) 2007-11-21 2018-05-01 Smith & Nephew Plc Wound dressing
US10307517B2 (en) 2010-09-20 2019-06-04 Smith & Nephew Plc Systems and methods for controlling operation of a reduced pressure therapy system
US10682446B2 (en) 2014-12-22 2020-06-16 Smith & Nephew Plc Dressing status detection for negative pressure wound therapy
US12097095B2 (en) 2011-05-26 2024-09-24 Smith & Nephew, Inc. Method and apparatus for providing negative pressure to a negative pressure wound therapy bandage

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US9855186B2 (en) 2014-05-14 2018-01-02 Aytu Women's Health, Llc Devices and methods for promoting female sexual wellness and satisfaction
DE102016200256A1 (de) * 2016-01-13 2017-07-13 Robert Bosch Gmbh Pumpvorrichtung und Partikeldetektor mit einer Pumpvorrichtung
CN109185554B (zh) * 2018-09-30 2019-10-18 浙江大学 一种音圈驱动的微型柔性阀

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Publication number Priority date Publication date Assignee Title
US9642955B2 (en) 2006-09-28 2017-05-09 Smith & Nephew, Inc. Portable wound therapy system
US12115302B2 (en) 2006-09-28 2024-10-15 Smith & Nephew, Inc. Portable wound therapy system
US11141325B2 (en) 2006-09-28 2021-10-12 Smith & Nephew, Inc. Portable wound therapy system
US9227000B2 (en) 2006-09-28 2016-01-05 Smith & Nephew, Inc. Portable wound therapy system
US10130526B2 (en) 2006-09-28 2018-11-20 Smith & Nephew, Inc. Portable wound therapy system
US11351064B2 (en) 2007-11-21 2022-06-07 Smith & Nephew Plc Wound dressing
US10231875B2 (en) 2007-11-21 2019-03-19 Smith & Nephew Plc Wound dressing
US10744041B2 (en) 2007-11-21 2020-08-18 Smith & Nephew Plc Wound dressing
US11364151B2 (en) 2007-11-21 2022-06-21 Smith & Nephew Plc Wound dressing
US9956121B2 (en) 2007-11-21 2018-05-01 Smith & Nephew Plc Wound dressing
US10016309B2 (en) 2007-11-21 2018-07-10 Smith & Nephew Plc Wound dressing
US11179276B2 (en) 2007-11-21 2021-11-23 Smith & Nephew Plc Wound dressing
US10555839B2 (en) 2007-11-21 2020-02-11 Smith & Nephew Plc Wound dressing
US11129751B2 (en) 2007-11-21 2021-09-28 Smith & Nephew Plc Wound dressing
US11623039B2 (en) 2010-09-20 2023-04-11 Smith & Nephew Plc Systems and methods for controlling operation of a reduced pressure therapy system
US11027051B2 (en) 2010-09-20 2021-06-08 Smith & Nephew Plc Pressure control apparatus
US10307517B2 (en) 2010-09-20 2019-06-04 Smith & Nephew Plc Systems and methods for controlling operation of a reduced pressure therapy system
US11534540B2 (en) 2010-09-20 2022-12-27 Smith & Nephew Plc Pressure control apparatus
US12226611B2 (en) 2010-09-20 2025-02-18 Smith & Nephew Plc Pressure control apparatus
US12097095B2 (en) 2011-05-26 2024-09-24 Smith & Nephew, Inc. Method and apparatus for providing negative pressure to a negative pressure wound therapy bandage
US11648342B2 (en) 2011-11-02 2023-05-16 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US9084845B2 (en) 2011-11-02 2015-07-21 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US10143783B2 (en) 2011-11-02 2018-12-04 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US11253639B2 (en) 2011-11-02 2022-02-22 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
US11730877B2 (en) 2012-03-20 2023-08-22 Smith & Nephew Plc Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination
US10881764B2 (en) 2012-03-20 2021-01-05 Smith & Nephew Plc Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination
US9901664B2 (en) 2012-03-20 2018-02-27 Smith & Nephew Plc Controlling operation of a reduced pressure therapy system based on dynamic duty cycle threshold determination
US10702418B2 (en) 2012-05-15 2020-07-07 Smith & Nephew Plc Negative pressure wound therapy apparatus
US10299964B2 (en) 2012-05-15 2019-05-28 Smith & Nephew Plc Negative pressure wound therapy apparatus
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
US12116991B2 (en) 2012-05-15 2024-10-15 Smith & Nephew Plc Negative pressure wound therapy apparatus
US9545465B2 (en) 2012-05-15 2017-01-17 Smith & Newphew Plc Negative pressure wound therapy apparatus
WO2015042098A1 (fr) * 2013-09-18 2015-03-26 Aavid Thermalloy, Llc Membrane fluidique fractionnée
WO2015171359A1 (fr) 2014-05-05 2015-11-12 Aavid Thermalloy, Llc Bobine plane et support pour actionneur de dispositif de déplacement de fluide
US10077768B2 (en) 2014-05-05 2018-09-18 Aavid Thermalloy, Llc Planar coil and support for actuator of fluid mover
US10973965B2 (en) 2014-12-22 2021-04-13 Smith & Nephew Plc Systems and methods of calibrating operating parameters of negative pressure wound therapy apparatuses
US11654228B2 (en) 2014-12-22 2023-05-23 Smith & Nephew Plc Status indication for negative pressure wound therapy
US10780202B2 (en) 2014-12-22 2020-09-22 Smith & Nephew Plc Noise reduction for negative pressure wound therapy apparatuses
US10737002B2 (en) 2014-12-22 2020-08-11 Smith & Nephew Plc Pressure sampling systems and methods for negative pressure wound therapy
US10682446B2 (en) 2014-12-22 2020-06-16 Smith & Nephew Plc Dressing status detection for negative pressure wound therapy
WO2016176132A1 (fr) 2015-04-29 2016-11-03 Aavid Thermalloy, Llc Ressort plat pour un dispositif de déplacement de fluide

Also Published As

Publication number Publication date
WO2012048179A3 (fr) 2012-08-30
BR112013008181A2 (pt) 2016-06-21
US20130230419A1 (en) 2013-09-05
EP2625434A4 (fr) 2017-06-21
JP2013545007A (ja) 2013-12-19
IN2013MN00704A (fr) 2015-06-12
CN103210218A (zh) 2013-07-17
EP2625434A2 (fr) 2013-08-14
CN103210218B (zh) 2016-05-11
JP5941471B2 (ja) 2016-06-29

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